Deciphera Pharmaceuticals, Inc. Presents Updated Phase 1/2 Data for Vimseltinib in TGCT at the European Society for Medical Oncology (ESMO) Congress 2022

On September 11, 2022 Deciphera Pharmaceuticals, Inc. (NASDAQ: DCPH), a biopharmaceutical company focused on discovering, developing, and commercializing important new medicines to improve the lives of people with cancer, reported updated results from the ongoing Phase 1/2 study of vimseltinib, an orally administered, potent, and highly selective switch-control kinase inhibitor of CSF1R, for the treatment of patients with tenosynovial giant cell tumor (TGCT) not amenable to surgery (Press release, Deciphera Pharmaceuticals, SEP 11, 2022, View Source [SID1234619368]). Results from the Phase 1 and Phase 2 portions of the study are being presented as separate posters, titled "Efficacy and safety of vimseltinib in tenosynovial giant cell tumour (TGCT): Phase 2 expansion" and "Safety and efficacy of vimseltinib in tenosynovial giant cell tumour (TGCT): Long-term phase 1 update" at the ESMO (Free ESMO Whitepaper) Congress 2022 on September 11 and September 12, respectively.

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"The updated data presented at ESMO (Free ESMO Whitepaper) underscore the best-in-class potential of vimseltinib for patients with TGCT. Additionally, preliminary patient-reported outcome results found a clinically meaningful symptomatic benefit at week 25 compared with baseline for both pain and stiffness, highlighting the important impact that vimseltinib can have on a patient’s quality of life," said Matthew L. Sherman, M.D., Chief Medical Officer of Deciphera. "These results support vimseltinib’s evaluation in the Phase 3 MOTION study, a two-part, randomized, double-blind, placebo-controlled study, which is currently enrolling patients. We believe vimseltinib has the potential to become a best-in-class therapy for TGCT patients who are not amenable to surgery."

Jean-Yves Blay, M.D., Ph.D., General Director of the Centre Léon Bérard Lyon said, "There remains a substantial unmet medical need for a highly effective and well-tolerated drug for patients with TGCT whose disease is not amenable to surgery. These updated Phase 1/2 data demonstrate not only the strong clinical activity of vimseltinib, but also the favorable safety and tolerability profile that is essential for TGCT patients. Vimseltinib has the potential to address this unmet need and offer a new option for patients around the world."

Summary of Data and Findings from Phase 1/2 Studies

Results from the Phase 2 portion of the study are being presented today in a poster presentation, summarized below. Updated results from the Phase 1 study are being presented in a poster presentation tomorrow, Monday, September 12. The Phase 1 data summarized below are based on the previously released abstract with a data cutoff date of February 18, 2022. The Phase 1 poster presentation remains under embargo until tomorrow and will include updated data based on a May 6, 2022 data cutoff date.

Safety and Efficacy of Vimseltinib in Tenosynovial Giant Cell Tumour (TGCT): Long-term Phase 1 Update

The Phase 1/2 study of vimseltinib is an open-label, multicenter study evaluating the safety, efficacy, pharmacokinetics, and pharmacodynamics of vimseltinib in patients with solid tumors and TGCT. The data presented from the Phase 1 update include long-term safety and efficacy for patients with TGCT from the dose escalation portion of the study.

Dose Cohorts and Demographics

As of the February 18, 2022 cutoff date, 32 patients were enrolled in three dose cohorts:
Phase 1 Cohort 5 (n=8): 30 mg loading dose daily for five days followed by a maintenance dose of 30 mg twice a week.
Phase 1 Cohort 8 (n=12): 30 mg loading dose daily for three days followed by a maintenance dose of 10 mg daily.
Phase 1 Cohort 9 (n=12): 20 mg loading dose daily for three days followed by a maintenance dose of 6 mg daily.
32 patients were evaluable for efficacy by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 at the data cutoff; response data is based on independent radiological review (IRR) except for one patient that did not have an IRR.
Antitumor Activity and Treatment Duration

Clinical Benefit Rate: 100% of patients demonstrated clinical benefit, defined as patients with complete response, partial response, or stable disease, without disease progression.
Objective Response Rate: 69% ORR (CR=1, PR=21).
Most responses were achieved within six months.
Treatment Duration: The median duration of treatment was 16.4 months with 59% of patients remaining on treatment as of the data cutoff date in February 2022.
Safety and Tolerability

Treatment with vimseltinib was generally well-tolerated in patients with TGCT and consistent with previously disclosed data.
Grade 3 or 4 treatment-emergent adverse events (TEAEs) (>5%) included increases in creatine phosphokinase, aspartate aminotransferase, lipase, amylase, and hypertension.
Observed transaminase, lipase, amylase, and creatine phosphokinase enzyme elevations were mostly low grade, asymptomatic, and consistent with mechanism of action of CSF1R inhibitors.
No postbaseline bilirubin elevations observed.
There were no new treatment-related serious adverse events since the June 7, 2021 data cutoff date.
Safety and Efficacy of Vimseltinib in Tenosynovial Giant Cell Tumour (TGCT): Phase 2 Expansion

The data presented from the Phase 2 expansion portion of the ongoing Phase 1/2 study includes safety, efficacy, and preliminary patient-reported outcome data in patients with TGCT treated with vimseltinib at the recommended Phase 2 dose (RP2D; 30 mg twice weekly) enrolled in two cohorts. Cohort A includes TGCT patients with no prior anti-CSF1/CSF1R (previous therapy with imatinib or nilotinib is allowed) and Cohort B includes patients with prior anti-CSF1/CSF1R (previous therapy with only imatinib or nilotinib are not eligible).

Dose Cohorts and Demographics

As of the May 6, 2022 cutoff date, 58 TGCT patients treated with vimseltinib were included in the safety population, including 46 patients enrolled in Cohort A and 12 patients enrolled in Cohort B.
56 patients were evaluable for efficacy by RECIST version 1.1 at the data cutoff in the Phase 2 across both cohorts; response data is based on independent radiological review.
Antitumor Activity, Treatment Duration, and Preliminary Patient-Reported Outcomes

Clinical Benefit Rate: 100% of patients demonstrated clinical benefit, defined as patients with complete response, partial response, or stable disease, without disease progression.
Objective Response Rate: 53% ORR (PR=24) in Cohort A and 46% ORR (CR=1, PR=4) in Cohort B.
In Cohort B, responses were observed in patients who had not achieved a response to prior anti-CSF1/CSF1R therapy.
Median duration of response was not reached in both cohorts.
75% of responses and 80% of responses were achieved within six months in Cohorts A and B, respectively.
ORR at 25 weeks was 38% (PR=17) in Cohort A.
Treatment Duration: The median duration of treatment was 9.8 months in Cohort A and 5.9 months in Cohort B. As of the data cutoff date, 61% of patients remained on treatment in Cohort A and 67% of patients remained on treatment in Cohort B.
Preliminary Patient-reported Outcomes: Initial data demonstrate that patients achieved clinically meaningful symptomatic benefit as of week 25 by two measures of patient-reported outcomes.
Brief Pain Inventory (BPI): 48% (Cohort A) and 56% (Cohort B) of patients had a BPI worse pain response at week 25.
Worse Stiffness Numeric Rating Scale: Patients showed progressive improvements in stiffness from baseline to week 25, with mean changes from baseline of -2.0 (Cohort A) and -2.7 (Cohort B). Improvement observed is considered clinically meaningful change with a threshold for meaningful change is estimated to be 1.
Safety and Tolerability

Treatment with vimseltinib was generally well-tolerated in patients with TGCT at the recommended Phase 2 dose of 30 mg twice weekly.
Most non-laboratory TEAEs were Grade 2 or lower.
The only Grade 3/4 TEAE observed in >5% of patients was elevated creatine phosphokinase.
Phase 3 MOTION Study

The pivotal Phase 3 MOTION study of vimseltinib for the treatment of TGCT is ongoing. MOTION is a two-part, randomized, double-blind, placebo-controlled study of vimseltinib to assess the efficacy and safety in patients with TGCT who are not amenable to surgery. The primary endpoint of the study is objective response rate at week 25 as measured by RECIST version 1.1 by blinded independent radiologic review. View Source

Conference Call and Webcast

Deciphera will host a conference call and webcast to discuss data presentations from the Company’s DCC-3116 and vimseltinib clinical programs at the ESMO (Free ESMO Whitepaper) Congress 2022 on Sunday, September 11, 2022, at 7:30 AM ET/ 1:30 PM CEST. The event may be accessed by registering at View Source A webcast of the event will be available in the "Events and Presentations" page in the "Investors" section of the Company’s website at View Source The archived webcast will be available on the Company’s website within 24 hours after the event and will be available for 30 days following the event.

About Vimseltinib

Vimseltinib is an investigational, orally administered, potent and highly selective switch-control kinase inhibitor of CSF1R. It was discovered using Deciphera’s proprietary drug discovery platform and was designed to selectively bind to the CSF1R switch pocket. Vimseltinib has demonstrated encouraging preliminary efficacy and safety data in patients with TGCT and is currently being evaluated in a Phase 1/2 clinical study. The Phase 3 MOTION study, a two-part, randomized, double-blind, placebo-controlled study of vimseltinib to assess the efficacy and safety in patients with symptomatic TGCT who are not amenable to surgery, is currently enrolling.

ImmunoGen Presents Additional Analyses Evaluating Mirvetuximab Soravtansine in Ovarian Cancer at ESMO

On September 11, 2022 ImmunoGen, Inc. (Nasdaq: IMGN), a leader in the expanding field of antibody-drug conjugates (ADCs) for the treatment of cancer, reported findings from an analysis of patient-reported outcomes (PROs) with mirvetuximab soravtansine (mirvetuximab) versus chemotherapy in the randomized Phase 3 FORWARD I study in platinum-resistant ovarian cancer (Press release, ImmunoGen, SEP 11, 2022, View Source [SID1234619367]). The Company also announced population pharmacokinetic (PK) and exposure response (ER) analyses across multiple clinical trials evaluating mirvetuximab monotherapy in folate receptor alpha (FRα)-positive ovarian cancer. These findings will be highlighted in three posters at the European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress in Paris, France.

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"The data presented at ESMO (Free ESMO Whitepaper) continue to support mirvetuximab’s potential to displace single-agent chemotherapy in FRα-positive ovarian cancer and will serve as a guide as we seek to advance the broader development program," said Anna Berkenblit, MD, Senior Vice President and Chief Medical Officer of ImmunoGen. "With our biologics license application for mirvetuximab under Priority Review with FDA, we look forward to potentially bringing this novel therapy to patients later this year."

ANALYSES OF PATIENT-REPORTED OUTCOMES WITH MIRVETUXIMAB SORAVTANSINE VERSUS STANDARD CHEMOTHERAPY IN THE RANDOMIZED PHASE 3 FORWARD I STUDY IN OVARIAN CANCER (GOG 3011)
Lead Author: Kathleen N. Moore, MD
Date/Time: September 11, 2022, 12:00 – 1:00 PM CEST / 6:00 – 7:00 AM ET
Poster: #532P

The Phase 3 FORWARD I trial enrolled 366 patients who were randomized 2:1 to receive either mirvetuximab or the physician’s choice of single-agent chemotherapy (pegylated liposomal doxorubicin, topotecan, or weekly paclitaxel). Eligible patients were diagnosed with platinum-resistant ovarian cancer that expresses medium or high levels of FRα and were treated with up to three prior regimens. The primary endpoint was progression-free survival (PFS), which was assessed in the entire study population and in the subset of patients with high FRα expression. Patients completed PRO assessments during screening, on day 1 of cycle 1, every 9 weeks thereafter (±1 week) until disease progression, and at the end of treatment visit.

Key findings:

In the intent-to-treat (ITT) population, a statistically significant improvement in the number of patients achieving a 15-point improvement in gastrointestinal (GI) symptoms was observed at week 8/9 in patients treated with mirvetuximab versus chemotherapy (31.7% vs 14.0% P = 0.0162).
The likelihood of GI symptom deterioration was 70% lower with mirvetuximab in the ITT population compared with chemotherapy (95% CI, 0.15–0.60; P=0.0007).
In the FRα-high population, the likelihood of GI symptom deterioration was 80% lower with mirvetuximab compared with chemotherapy (95% CI, 0.10–0.54; P=0.0007).
In both the ITT and FRα-high patient populations, improvements were seen with mirvetuximab compared with chemotherapy across multiple side effects, including sexuality, hair loss, pain severity, body image, and general improvement in ovarian cancer–specific symptoms.
In both the ITT and FRα-high patient populations, there were statistically significant benefits in physical functioning for mirvetuximab over chemotherapy.
"An unmet need remains for safe, effective, and well-tolerated therapeutic options for patients with platinum-resistant ovarian cancer, despite treatment advancements seen in this setting," said Kathleen Moore, Director of the Oklahoma TSET Phase I Program, Professor of the Section of Gynecologic Oncology at The University of Oklahoma College of Medicine and FORWARD I Co-Principal Investigator. "The improved PROs associated with mirvetuximab compared to chemotherapy reinforce the differentiated tolerability profile of mirvetuximab and, coupled with its compelling anti-tumor activity and favorable safety, support its potential to serve as a new standard of care for patients with FRα-positive ovarian cancer."

EXPOSURE RESPONSE ANALYSIS FOR EFFICACY AND SAFETY OF MIRVETUXIMAB SORAVTANSINE IN PATIENTS WITH FOLATE RECEPTOR ΑLPHA-POSITIVE CANCER
Lead Author: Ursula A. Matulonis, MD
Date/Time: September 11, 2022, 12:00 -1:00 PM CEST / 6:00 – 7:00 AM ET
Poster: #592P

An ER analysis was conducted across three studies – the Phase 1 IMGN853-0401 trial, the Phase 3 FORWARD I trial, and the Phase 3 SORAYA trial – to understand the relationship between exposure to single-agent mirvetuximab and the efficacy and safety responses observed in patients with FRα-positive tumors.

Key findings:

Both efficacy, in terms of objective response rate (ORR) and PFS, and ocular adverse events (AEs) were higher with increased exposure to mirvetuximab.
These data highlight the importance of adherence to recommended mirvetuximab dosing guidelines in clinical practice.
POPULATION PHARMACOKINETIC ANALYSIS OF MIRVETUXIMAB SORAVTANSINE IN PATIENTS WITH FOLATE RECEPTOR ALPHA-POSITIVE CANCER
Lead Author: Kathleen N. Moore, MD
Date/Time: September 11, 2022, 12:00 – 1:00 PM CEST / 6:00 – 7:00 AM ET
Poster: #605P

A PK analysis, taking into account patient demographics and clinical characteristics, was conducted across three studies – IMGN853-0401, FORWARD I, and SORAYA – to understand the efficacy and safety of mirvetuximab in patients with FRα-positive tumors.

Key findings:

Dosing adjustments do not appear to be necessary for patients with mild or moderate renal impairment or mild hepatic impairment.
The analyses support the final recommended dose of 6 mg/kg based on adjusted ideal body weight (AIBW) every 3 weeks with balanced efficacy and safety.
Additional information can be found at www.esmo.org.

ABOUT MIRVETUXIMAB SORAVTANSINE
Mirvetuximab soravtansine (IMGN853) is a first-in-class ADC comprising a folate receptor alpha-binding antibody, cleavable linker, and the maytansinoid payload DM4, a potent tubulin-targeting agent, to kill the targeted cancer cells.

Five-Year Data for Merck's KEYTRUDA® (pembrolizumab) Plus Chemotherapy Showed Sustained Survival Benefit Versus Chemotherapy Alone in Two Studies for Metastatic Non-Small Cell Lung Cancer (NSCLC)

On September 11, 2022 Merck (NYSE: MRK), known as MSD outside of the United States and Canada, reported KEYTRUDA, Merck’s anti-PD-1 therapy, plus chemotherapy continued to demonstrate a survival benefit and durable responses in two five-year exploratory analyses of pivotal Phase 3 studies as first-line treatment for metastatic non-small cell lung cancer (NSCLC) (Press release, Merck & Co, SEP 11, 2022, View Source [SID1234619366]):

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For patients with metastatic nonsquamous NSCLC, data from KEYNOTE-189 demonstrated KEYTRUDA plus pemetrexed (ALIMTA) and platinum chemotherapy (cisplatin or carboplatin) had a five-year overall survival (OS) rate of 19.4% versus 11.3% for chemotherapy alone. The KEYTRUDA-pemetrexed-platinum chemotherapy combination reduced the risk of death by 40% (HR=0.60 [95% CI, 0.50-0.72]). At five years, KEYTRUDA plus pemetrexed and cisplatin or carboplatin more than doubled the median OS compared to chemotherapy alone (22.0 months versus 10.6 months);
For patients with metastatic squamous NSCLC, results from KEYNOTE-407 showed the five-year OS rate for KEYTRUDA plus carboplatin-paclitaxel or nab-paclitaxel was 18.4% versus 9.7% for chemotherapy alone. KEYTRUDA plus carboplatin-paclitaxel or nab-paclitaxel reduced the risk of death by 29% (HR=0.71 [95% CI, 0.59-0.85]) versus chemotherapy alone. The median OS was 17.2 months for the KEYTRUDA plus chemotherapy group versus 11.6 months for the chemotherapy group.
KEYTRUDA is the first immunotherapy to demonstrate a sustained five-year survival benefit both in combination with chemotherapy and as monotherapy for the first-line treatment of NSCLC. In addition to NSCLC, five-year survival data for KEYTRUDA have been presented in three other types of cancer, including bladder cancer (KEYNOTE-045), head and neck cancer (KEYNOTE-048) and melanoma (KEYNOTE-054).

"The overall survival findings from KEYNOTE-189 and KEYNOTE-407 changed the way patients with metastatic non-small cell lung cancer were treated and established KEYTRUDA plus chemotherapy as a foundational first-line treatment for this devastating disease," said Dr. Eliav Barr, senior vice president, head of global clinical development and chief medical officer, Merck Research Laboratories. "Now, with more than five years of follow-up, these studies continue to show impressive survival outcomes and durable responses for patients receiving KEYTRUDA in combination with chemotherapy. In fact, in both studies, of the approximately 55 patients who completed two years of treatment, about 70% were alive at five years."

"Prior to these landmark studies, lung cancer had a 10% five-year survival rate, one of the lowest of any cancer," said Dr. Marina C. Garassino, professor of medicine, University of Chicago, Hematology/Oncology, and principal investigator for KEYNOTE-189. "These results show meaningful improvements in five-year survival for patients receiving KEYTRUDA plus chemotherapy and reinforce the important role of these KEYTRUDA-based regimens as standards of care for metastatic non-small cell lung cancer."

Results from KEYNOTE-189 (abstract #973MO) and KEYNOTE-407 (abstract #974MO) are being presented during a mini oral session at the European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress 2022. Five-year OS data from KEYNOTE-024, which evaluated KEYTRUDA monotherapy versus chemotherapy for the first-line treatment of patients with metastatic NSCLC whose tumors expressed PD-L1 (tumor proportion score [TPS] ≥50%), were presented at ESMO (Free ESMO Whitepaper) 2020. Five-year OS data from KEYNOTE-042, which evaluated KEYTRUDA monotherapy versus platinum-based chemotherapy for the first-line treatment of patients with metastatic NSCLC whose tumors expressed PD-L1 (TPS ≥1%), were presented at SITC (Free SITC Whitepaper) 2021.

As announced, data spanning more than 16 different types of cancer are being presented from Merck’s broad oncology portfolio and investigational pipeline at ESMO (Free ESMO Whitepaper) Congress 2022.

Five-year data from an exploratory analysis of KEYNOTE-189 in metastatic nonsquamous NSCLC (abstract #973MO)

KEYNOTE-189 (ClinicalTrials.gov, NCT02578680) is a pivotal Phase 3, randomized trial evaluating KEYTRUDA plus pemetrexed and cisplatin or carboplatin for the first-line treatment of patients with metastatic nonsquamous NSCLC with no EGFR or ALK genomic tumor aberrations versus pemetrexed and platinum chemotherapy alone. Results being presented at ESMO (Free ESMO Whitepaper) include an exploratory analysis of the efficacy and safety outcomes at five years of follow-up and additional analyses in patients who completed 35 cycles (approximately two years) of treatment with KEYTRUDA.

With a median follow-up of 64.6 months (range, 60.1 to 72.4), KEYTRUDA plus pemetrexed and cisplatin or carboplatin continued to show improvement in OS and progression-free survival (PFS). The OS benefit was observed despite a 57.3% (n=118/206) effective crossover rate from chemotherapy to subsequent anti-PD-1/PD-L1 therapy. The KEYTRUDA-pemetrexed-platinum chemotherapy combination reduced the risk of disease progression or death by half (HR=0.50 [95% CI, 0.42-0.60]) versus chemotherapy alone, with a median PFS of 9.0 months versus 4.9 months and a five-year PFS rate of 7.5% versus 0.6%. The objective response rate (ORR) was 48.3% for those receiving KEYTRUDA plus pemetrexed and cisplatin or carboplatin versus 19.9% for those receiving chemotherapy alone, with a median duration of response (DOR) of 12.7 months (range, 1.1+ to 68.3+) versus 7.1 months (range, 2.4 to 31.5), respectively.

Of the patients who completed approximately two years of treatment (35 cycles) with KEYTRUDA plus pemetrexed and cisplatin or carboplatin (n=57/405), 71.9% were alive at five years following randomization, with an ORR of 86.0% (with eight complete responses and 41 partial responses). Among these patients, 40.4% were alive without progressive disease or subsequent therapy.

No new safety signals for KEYTRUDA were identified with long-term follow-up. Among all patients treated, 72.8% of those who received KEYTRUDA plus pemetrexed and cisplatin or carboplatin and 67.3% of those who received chemotherapy alone experienced Grade 3-5 adverse events (AEs). Among patients who completed two years of treatment with KEYTRUDA plus pemetrexed and cisplatin or carboplatin, Grade 3-5 AEs occurred in 66.7%.

KEYNOTE-189 was conducted in collaboration with Eli Lilly and Company, the makers of ALIMTA (pemetrexed).

Five-year data from an exploratory analysis of KEYNOTE-407 in metastatic squamous NSCLC (abstract #974MO)

KEYNOTE-407 (ClinicalTrials.gov, NCT02775435) is a pivotal Phase 3, randomized, double-blind, placebo-controlled trial evaluating KEYTRUDA plus carboplatin-paclitaxel or nab-paclitaxel for the first-line treatment of patients with metastatic squamous NSCLC versus carboplatin-paclitaxel or nab-paclitaxel alone. Results being presented at ESMO (Free ESMO Whitepaper) include an exploratory analysis of the efficacy and safety outcomes at five years of follow-up and additional analyses in patients who completed 35 cycles (approximately two years) of treatment with KEYTRUDA.

With a median follow-up of 56.9 months (range, 49.9 to 66.2), KEYTRUDA plus carboplatin-paclitaxel or nab-paclitaxel continued to show improvement in OS and PFS. The OS benefit was observed despite a 50.9% (n=143/281) effective crossover rate from chemotherapy to subsequent anti-PD-1/PD-L1 therapy. KEYTRUDA plus carboplatin-paclitaxel or nab-paclitaxel reduced the risk of disease progression or death by 38% (HR=0.62 [95% CI, 0.52-0.74]) versus chemotherapy alone, with a median PFS of 8.0 months versus 5.1 months and a five-year PFS rate of 10.8% versus 3.5%. The ORR was 62.2% for the KEYTRUDA combination arm versus 38.8% for the chemotherapy arm.

Of the patients who completed two years (35 cycles) of treatment with KEYTRUDA plus carboplatin-paclitaxel or nab-paclitaxel (n=55/278), 69.5% were alive at five years, with an ORR of 90.9% (with nine complete responses and 41 partial responses). Among these patients, 43.6% were alive without progressive disease or subsequent therapy.

No new safety signals for KEYTRUDA were identified with long-term follow-up. Among all patients treated, 74.8% of those who received KEYTRUDA plus carboplatin-paclitaxel or nab-paclitaxel and 70.0% of those who received chemotherapy alone experienced Grade 3-5 AEs. Among patients who completed two years of treatment with KEYTRUDA plus carboplatin-paclitaxel or nab-paclitaxel, Grade 3-5 AEs occurred in 63.6%.

About lung cancer

Lung cancer is the leading cause of cancer death worldwide. In 2020 alone, there were more than 2.2 million new cases and 1.8 million deaths from lung cancer globally. Non-small cell lung cancer is the most common type of lung cancer, accounting for about 82% of all cases. In the U.S., the overall five-year survival rate for patients diagnosed with lung cancer is 24%, which is a 14% improvement over the last five years. Improved survival rates are due in part to earlier detection and screening, reduction in smoking, advances in diagnostic and surgical procedures as well as the introduction of new therapies.

About Merck’s research in lung cancer

Merck is advancing research aimed at transforming the way lung cancer is treated, with a goal of improving outcomes for patients affected by this deadly disease. Through nearly 200 clinical trials evaluating more than 36,000 patients around the world, Merck is at the forefront of lung cancer research. In advanced NSCLC, KEYTRUDA has four approved U.S. indications (see indications below) and is approved for advanced NSCLC in more than 95 countries. Among Merck’s research efforts are trials focused on evaluating KEYTRUDA in earlier stages of lung cancer as well as identifying new combinations and coformulations with KEYTRUDA.

About KEYTRUDA (pembrolizumab) injection, 100 mg

KEYTRUDA is an anti-programmed death receptor-1 (PD-1) therapy that works by increasing the ability of the body’s immune system to help detect and fight tumor cells. KEYTRUDA is a humanized monoclonal antibody that blocks the interaction between PD-1 and its ligands, PD-L1 and PD-L2, thereby activating T lymphocytes which may affect both tumor cells and healthy cells.

Merck has the industry’s largest immuno-oncology clinical research program. There are currently more than 1,600 trials studying KEYTRUDA across a wide variety of cancers and treatment settings. The KEYTRUDA clinical program seeks to understand the role of KEYTRUDA across cancers and the factors that may predict a patient’s likelihood of benefitting from treatment with KEYTRUDA, including exploring several different biomarkers.

Selected KEYTRUDA (pembrolizumab) Indications in the U.S.

Non-Small Cell Lung Cancer

KEYTRUDA, in combination with pemetrexed and platinum chemotherapy, is indicated for the first-line treatment of patients with metastatic nonsquamous non-small cell lung cancer (NSCLC), with no EGFR or ALK genomic tumor aberrations.

KEYTRUDA, in combination with carboplatin and either paclitaxel or paclitaxel protein-bound, is indicated for the first-line treatment of patients with metastatic squamous NSCLC.

KEYTRUDA, as a single agent, is indicated for the first-line treatment of patients with NSCLC expressing PD-L1 [tumor proportion score (TPS) ≥1%] as determined by an FDA-approved test, with no EGFR or ALK genomic tumor aberrations, and is:

stage III where patients are not candidates for surgical resection or definitive chemoradiation, or
metastatic.
KEYTRUDA, as a single agent, is indicated for the treatment of patients with metastatic NSCLC whose tumors express PD-L1 (TPS ≥1%) as determined by an FDA-approved test, with disease progression on or after platinum-containing chemotherapy. Patients with EGFR or ALK genomic tumor aberrations should have disease progression on FDA-approved therapy for these aberrations prior to receiving KEYTRUDA.

See additional selected indications for KEYTRUDA in the U.S. after the Selected Important Safety Information

Selected Important Safety Information for KEYTRUDA

Severe and Fatal Immune-Mediated Adverse Reactions

KEYTRUDA is a monoclonal antibody that belongs to a class of drugs that bind to either the PD-1 or the PD-L1, blocking the PD-1/PD-L1 pathway, thereby removing inhibition of the immune response, potentially breaking peripheral tolerance and inducing immune-mediated adverse reactions. Immune-mediated adverse reactions, which may be severe or fatal, can occur in any organ system or tissue, can affect more than one body system simultaneously, and can occur at any time after starting treatment or after discontinuation of treatment. Important immune-mediated adverse reactions listed here may not include all possible severe and fatal immune-mediated adverse reactions.

Monitor patients closely for symptoms and signs that may be clinical manifestations of underlying immune-mediated adverse reactions. Early identification and management are essential to ensure safe use of anti–PD-1/PD-L1 treatments. Evaluate liver enzymes, creatinine, and thyroid function at baseline and periodically during treatment. For patients with TNBC treated with KEYTRUDA in the neoadjuvant setting, monitor blood cortisol at baseline, prior to surgery, and as clinically indicated. In cases of suspected immune-mediated adverse reactions, initiate appropriate workup to exclude alternative etiologies, including infection. Institute medical management promptly, including specialty consultation as appropriate.

Withhold or permanently discontinue KEYTRUDA depending on severity of the immune-mediated adverse reaction. In general, if KEYTRUDA requires interruption or discontinuation, administer systemic corticosteroid therapy (1 to 2 mg/kg/day prednisone or equivalent) until improvement to Grade 1 or less. Upon improvement to Grade 1 or less, initiate corticosteroid taper and continue to taper over at least 1 month. Consider administration of other systemic immunosuppressants in patients whose adverse reactions are not controlled with corticosteroid therapy.

Immune-Mediated Pneumonitis

KEYTRUDA can cause immune-mediated pneumonitis. The incidence is higher in patients who have received prior thoracic radiation. Immune-mediated pneumonitis occurred in 3.4% (94/2799) of patients receiving KEYTRUDA, including fatal (0.1%), Grade 4 (0.3%), Grade 3 (0.9%), and Grade 2 (1.3%) reactions. Systemic corticosteroids were required in 67% (63/94) of patients. Pneumonitis led to permanent discontinuation of KEYTRUDA in 1.3% (36) and withholding in 0.9% (26) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement; of these, 23% had recurrence. Pneumonitis resolved in 59% of the 94 patients.

Pneumonitis occurred in 8% (31/389) of adult patients with cHL receiving KEYTRUDA as a single agent, including Grades 3-4 in 2.3% of patients. Patients received high-dose corticosteroids for a median duration of 10 days (range: 2 days to 53 months). Pneumonitis rates were similar in patients with and without prior thoracic radiation. Pneumonitis led to discontinuation of KEYTRUDA in 5.4% (21) of patients. Of the patients who developed pneumonitis, 42% interrupted KEYTRUDA, 68% discontinued KEYTRUDA, and 77% had resolution.

Immune-Mediated Colitis

KEYTRUDA can cause immune-mediated colitis, which may present with diarrhea. Cytomegalovirus infection/reactivation has been reported in patients with corticosteroid-refractory immune-mediated colitis. In cases of corticosteroid-refractory colitis, consider repeating infectious workup to exclude alternative etiologies. Immune-mediated colitis occurred in 1.7% (48/2799) of patients receiving KEYTRUDA, including Grade 4 (<0.1%), Grade 3 (1.1%), and Grade 2 (0.4%) reactions. Systemic corticosteroids were required in 69% (33/48); additional immunosuppressant therapy was required in 4.2% of patients. Colitis led to permanent discontinuation of KEYTRUDA in 0.5% (15) and withholding in 0.5% (13) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement; of these, 23% had recurrence. Colitis resolved in 85% of the 48 patients.

Hepatotoxicity and Immune-Mediated Hepatitis

KEYTRUDA as a Single Agent

KEYTRUDA can cause immune-mediated hepatitis. Immune-mediated hepatitis occurred in 0.7% (19/2799) of patients receiving KEYTRUDA, including Grade 4 (<0.1%), Grade 3 (0.4%), and Grade 2 (0.1%) reactions. Systemic corticosteroids were required in 68% (13/19) of patients; additional immunosuppressant therapy was required in 11% of patients. Hepatitis led to permanent discontinuation of KEYTRUDA in 0.2% (6) and withholding in 0.3% (9) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement; of these, none had recurrence. Hepatitis resolved in 79% of the 19 patients.

KEYTRUDA With Axitinib

KEYTRUDA in combination with axitinib can cause hepatic toxicity. Monitor liver enzymes before initiation of and periodically throughout treatment. Consider monitoring more frequently as compared to when the drugs are administered as single agents. For elevated liver enzymes, interrupt KEYTRUDA and axitinib, and consider administering corticosteroids as needed. With the combination of KEYTRUDA and axitinib, Grades 3 and 4 increased alanine aminotransferase (ALT) (20%) and increased aspartate aminotransferase (AST) (13%) were seen at a higher frequency compared to KEYTRUDA alone. Fifty-nine percent of the patients with increased ALT received systemic corticosteroids. In patients with ALT ≥3 times upper limit of normal (ULN) (Grades 2-4, n=116), ALT resolved to Grades 0-1 in 94%. Among the 92 patients who were rechallenged with either KEYTRUDA (n=3) or axitinib (n=34) administered as a single agent or with both (n=55), recurrence of ALT ≥3 times ULN was observed in 1 patient receiving KEYTRUDA, 16 patients receiving axitinib, and 24 patients receiving both. All patients with a recurrence of ALT ≥3 ULN subsequently recovered from the event.

Immune-Mediated Endocrinopathies

Adrenal Insufficiency

KEYTRUDA can cause primary or secondary adrenal insufficiency. For Grade 2 or higher, initiate symptomatic treatment, including hormone replacement as clinically indicated. Withhold KEYTRUDA depending on severity. Adrenal insufficiency occurred in 0.8% (22/2799) of patients receiving KEYTRUDA, including Grade 4 (<0.1%), Grade 3 (0.3%), and Grade 2 (0.3%) reactions. Systemic corticosteroids were required in 77% (17/22) of patients; of these, the majority remained on systemic corticosteroids. Adrenal insufficiency led to permanent discontinuation of KEYTRUDA in <0.1% (1) and withholding in 0.3% (8) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement.

Hypophysitis

KEYTRUDA can cause immune-mediated hypophysitis. Hypophysitis can present with acute symptoms associated with mass effect such as headache, photophobia, or visual field defects. Hypophysitis can cause hypopituitarism. Initiate hormone replacement as indicated. Withhold or permanently discontinue KEYTRUDA depending on severity. Hypophysitis occurred in 0.6% (17/2799) of patients receiving KEYTRUDA, including Grade 4 (<0.1%), Grade 3 (0.3%), and Grade 2 (0.2%) reactions. Systemic corticosteroids were required in 94% (16/17) of patients; of these, the majority remained on systemic corticosteroids. Hypophysitis led to permanent discontinuation of KEYTRUDA in 0.1% (4) and withholding in 0.3% (7) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement.

Thyroid Disorders

KEYTRUDA can cause immune-mediated thyroid disorders. Thyroiditis can present with or without endocrinopathy. Hypothyroidism can follow hyperthyroidism. Initiate hormone replacement for hypothyroidism or institute medical management of hyperthyroidism as clinically indicated. Withhold or permanently discontinue KEYTRUDA depending on severity. Thyroiditis occurred in 0.6% (16/2799) of patients receiving KEYTRUDA, including Grade 2 (0.3%). None discontinued, but KEYTRUDA was withheld in <0.1% (1) of patients.

Hyperthyroidism occurred in 3.4% (96/2799) of patients receiving KEYTRUDA, including Grade 3 (0.1%) and Grade 2 (0.8%). It led to permanent discontinuation of KEYTRUDA in <0.1% (2) and withholding in 0.3% (7) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement. Hypothyroidism occurred in 8% (237/2799) of patients receiving KEYTRUDA, including Grade 3 (0.1%) and Grade 2 (6.2%). It led to permanent discontinuation of KEYTRUDA in <0.1% (1) and withholding in 0.5% (14) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement. The majority of patients with hypothyroidism required long-term thyroid hormone replacement. The incidence of new or worsening hypothyroidism was higher in 1185 patients with HNSCC, occurring in 16% of patients receiving KEYTRUDA as a single agent or in combination with platinum and FU, including Grade 3 (0.3%) hypothyroidism. The incidence of new or worsening hypothyroidism was higher in 389 adult patients with cHL (17%) receiving KEYTRUDA as a single agent, including Grade 1 (6.2%) and Grade 2 (10.8%) hypothyroidism.

Type 1 Diabetes Mellitus (DM), Which Can Present With Diabetic Ketoacidosis

Monitor patients for hyperglycemia or other signs and symptoms of diabetes. Initiate treatment with insulin as clinically indicated. Withhold KEYTRUDA depending on severity. Type 1 DM occurred in 0.2% (6/2799) of patients receiving KEYTRUDA. It led to permanent discontinuation in <0.1% (1) and withholding of KEYTRUDA in <0.1% (1) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement.

Immune-Mediated Nephritis With Renal Dysfunction

KEYTRUDA can cause immune-mediated nephritis. Immune-mediated nephritis occurred in 0.3% (9/2799) of patients receiving KEYTRUDA, including Grade 4 (<0.1%), Grade 3 (0.1%), and Grade 2 (0.1%) reactions. Systemic corticosteroids were required in 89% (8/9) of patients. Nephritis led to permanent discontinuation of KEYTRUDA in 0.1% (3) and withholding in 0.1% (3) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement; of these, none had recurrence. Nephritis resolved in 56% of the 9 patients.

Immune-Mediated Dermatologic Adverse Reactions

KEYTRUDA can cause immune-mediated rash or dermatitis. Exfoliative dermatitis, including Stevens-Johnson syndrome, drug rash with eosinophilia and systemic symptoms, and toxic epidermal necrolysis, has occurred with anti–PD-1/PD-L1 treatments. Topical emollients and/or topical corticosteroids may be adequate to treat mild to moderate nonexfoliative rashes. Withhold or permanently discontinue KEYTRUDA depending on severity. Immune-mediated dermatologic adverse reactions occurred in 1.4% (38/2799) of patients receiving KEYTRUDA, including Grade 3 (1%) and Grade 2 (0.1%) reactions. Systemic corticosteroids were required in 40% (15/38) of patients. These reactions led to permanent discontinuation in 0.1% (2) and withholding of KEYTRUDA in 0.6% (16) of patients. All patients who were withheld reinitiated KEYTRUDA after symptom improvement; of these, 6% had recurrence. The reactions resolved in 79% of the 38 patients.

Other Immune-Mediated Adverse Reactions

The following clinically significant immune-mediated adverse reactions occurred at an incidence of <1% (unless otherwise noted) in patients who received KEYTRUDA or were reported with the use of other anti–PD-1/PD-L1 treatments. Severe or fatal cases have been reported for some of these adverse reactions. Cardiac/Vascular: Myocarditis, pericarditis, vasculitis; Nervous System: Meningitis, encephalitis, myelitis and demyelination, myasthenic syndrome/myasthenia gravis (including exacerbation), Guillain-Barré syndrome, nerve paresis, autoimmune neuropathy; Ocular: Uveitis, iritis and other ocular inflammatory toxicities can occur. Some cases can be associated with retinal detachment. Various grades of visual impairment, including blindness, can occur. If uveitis occurs in combination with other immune-mediated adverse reactions, consider a Vogt-Koyanagi-Harada-like syndrome, as this may require treatment with systemic steroids to reduce the risk of permanent vision loss; Gastrointestinal: Pancreatitis, to include increases in serum amylase and lipase levels, gastritis, duodenitis; Musculoskeletal and Connective Tissue: Myositis/polymyositis, rhabdomyolysis (and associated sequelae, including renal failure), arthritis (1.5%), polymyalgia rheumatica; Endocrine: Hypoparathyroidism; Hematologic/Immune: Hemolytic anemia, aplastic anemia, hemophagocytic lymphohistiocytosis, systemic inflammatory response syndrome, histiocytic necrotizing lymphadenitis (Kikuchi lymphadenitis), sarcoidosis, immune thrombocytopenic purpura, solid organ transplant rejection.

Infusion-Related Reactions

KEYTRUDA can cause severe or life-threatening infusion-related reactions, including hypersensitivity and anaphylaxis, which have been reported in 0.2% of 2799 patients receiving KEYTRUDA. Monitor for signs and symptoms of infusion-related reactions. Interrupt or slow the rate of infusion for Grade 1 or Grade 2 reactions. For Grade 3 or Grade 4 reactions, stop infusion and permanently discontinue KEYTRUDA.

Complications of Allogeneic Hematopoietic Stem Cell Transplantation (HSCT)

Fatal and other serious complications can occur in patients who receive allogeneic HSCT before or after anti–PD-1/PD-L1 treatments. Transplant-related complications include hyperacute graft-versus-host disease (GVHD), acute and chronic GVHD, hepatic veno-occlusive disease after reduced intensity conditioning, and steroid-requiring febrile syndrome (without an identified infectious cause). These complications may occur despite intervening therapy between anti–PD-1/PD-L1 treatment and allogeneic HSCT. Follow patients closely for evidence of these complications and intervene promptly. Consider the benefit vs risks of using anti–PD-1/PD-L1 treatments prior to or after an allogeneic HSCT.

Increased Mortality in Patients With Multiple Myeloma

In trials in patients with multiple myeloma, the addition of KEYTRUDA to a thalidomide analogue plus dexamethasone resulted in increased mortality. Treatment of these patients with an anti–PD-1/PD-L1 treatment in this combination is not recommended outside of controlled trials.

Embryofetal Toxicity

Based on its mechanism of action, KEYTRUDA can cause fetal harm when administered to a pregnant woman. Advise women of this potential risk. In females of reproductive potential, verify pregnancy status prior to initiating KEYTRUDA and advise them to use effective contraception during treatment and for 4 months after the last dose.

Adverse Reactions

In KEYNOTE-006, KEYTRUDA was discontinued due to adverse reactions in 9% of 555 patients with advanced melanoma; adverse reactions leading to permanent discontinuation in more than one patient were colitis (1.4%), autoimmune hepatitis (0.7%), allergic reaction (0.4%), polyneuropathy (0.4%), and cardiac failure (0.4%). The most common adverse reactions (≥20%) with KEYTRUDA were fatigue (28%), diarrhea (26%), rash (24%), and nausea (21%).

In KEYNOTE-054, when KEYTRUDA was administered as a single agent to patients with stage III melanoma, KEYTRUDA was permanently discontinued due to adverse reactions in 14% of 509 patients; the most common (≥1%) were pneumonitis (1.4%), colitis (1.2%), and diarrhea (1%). Serious adverse reactions occurred in 25% of patients receiving KEYTRUDA. The most common adverse reaction (≥20%) with KEYTRUDA was diarrhea (28%). In KEYNOTE-716, when KEYTRUDA was administered as a single agent to patients with stage IIB or IIC melanoma, adverse reactions occurring in patients with stage IIB or IIC melanoma were similar to those occurring in 1011 patients with stage III melanoma from KEYNOTE-054.

In KEYNOTE-189, when KEYTRUDA was administered with pemetrexed and platinum chemotherapy in metastatic nonsquamous NSCLC, KEYTRUDA was discontinued due to adverse reactions in 20% of 405 patients. The most common adverse reactions resulting in permanent discontinuation of KEYTRUDA were pneumonitis (3%) and acute kidney injury (2%). The most common adverse reactions (≥20%) with KEYTRUDA were nausea (56%), fatigue (56%), constipation (35%), diarrhea (31%), decreased appetite (28%), rash (25%), vomiting (24%), cough (21%), dyspnea (21%), and pyrexia (20%).

In KEYNOTE-407, when KEYTRUDA was administered with carboplatin and either paclitaxel or paclitaxel protein-bound in metastatic squamous NSCLC, KEYTRUDA was discontinued due to adverse reactions in 15% of 101 patients. The most frequent serious adverse reactions reported in at least 2% of patients were febrile neutropenia, pneumonia, and urinary tract infection. Adverse reactions observed in KEYNOTE-407 were similar to those observed in KEYNOTE-189 with the exception that increased incidences of alopecia (47% vs 36%) and peripheral neuropathy (31% vs 25%) were observed in the KEYTRUDA and chemotherapy arm compared to the placebo and chemotherapy arm in KEYNOTE-407.

In KEYNOTE-042, KEYTRUDA was discontinued due to adverse reactions in 19% of 636 patients with advanced NSCLC; the most common were pneumonitis (3%), death due to unknown cause (1.6%), and pneumonia (1.4%). The most frequent serious adverse reactions reported in at least 2% of patients were pneumonia (7%), pneumonitis (3.9%), pulmonary embolism (2.4%), and pleural effusion (2.2%). The most common adverse reaction (≥20%) was fatigue (25%).

In KEYNOTE-010, KEYTRUDA monotherapy was discontinued due to adverse reactions in 8% of 682 patients with metastatic NSCLC; the most common was pneumonitis (1.8%). The most common adverse reactions (≥20%) were decreased appetite (25%), fatigue (25%), dyspnea (23%), and nausea (20%).

In KEYNOTE-048, KEYTRUDA monotherapy was discontinued due to adverse events in 12% of 300 patients with HNSCC; the most common adverse reactions leading to permanent discontinuation were sepsis (1.7%) and pneumonia (1.3%). The most common adverse reactions (≥20%) were fatigue (33%), constipation (20%), and rash (20%).

In KEYNOTE-048, when KEYTRUDA was administered in combination with platinum (cisplatin or carboplatin) and FU chemotherapy, KEYTRUDA was discontinued due to adverse reactions in 16% of 276 patients with HNSCC. The most common adverse reactions resulting in permanent discontinuation of KEYTRUDA were pneumonia (2.5%), pneumonitis (1.8%), and septic shock (1.4%). The most common adverse reactions (≥20%) were nausea (51%), fatigue (49%), constipation (37%), vomiting (32%), mucosal inflammation (31%), diarrhea (29%), decreased appetite (29%), stomatitis (26%), and cough (22%).

In KEYNOTE-012, KEYTRUDA was discontinued due to adverse reactions in 17% of 192 patients with HNSCC. Serious adverse reactions occurred in 45% of patients. The most frequent serious adverse reactions reported in at least 2% of patients were pneumonia, dyspnea, confusional state, vomiting, pleural effusion, and respiratory failure. The most common adverse reactions (≥20%) were fatigue, decreased appetite, and dyspnea. Adverse reactions occurring in patients with HNSCC were generally similar to those occurring in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy, with the exception of increased incidences of facial edema and new or worsening hypothyroidism.

In KEYNOTE-204, KEYTRUDA was discontinued due to adverse reactions in 14% of 148 patients with cHL. Serious adverse reactions occurred in 30% of patients receiving KEYTRUDA; those ≥1% were pneumonitis, pneumonia, pyrexia, myocarditis, acute kidney injury, febrile neutropenia, and sepsis. Three patients died from causes other than disease progression: 2 from complications after allogeneic HSCT and 1 from unknown cause. The most common adverse reactions (≥20%) were upper respiratory tract infection (41%), musculoskeletal pain (32%), diarrhea (22%), and pyrexia, fatigue, rash, and cough (20% each).

In KEYNOTE-087, KEYTRUDA was discontinued due to adverse reactions in 5% of 210 patients with cHL. Serious adverse reactions occurred in 16% of patients; those ≥1% were pneumonia, pneumonitis, pyrexia, dyspnea, GVHD, and herpes zoster. Two patients died from causes other than disease progression: 1 from GVHD after subsequent allogeneic HSCT and 1 from septic shock. The most common adverse reactions (≥20%) were fatigue (26%), pyrexia (24%), cough (24%), musculoskeletal pain (21%), diarrhea (20%), and rash (20%).

In KEYNOTE-170, KEYTRUDA was discontinued due to adverse reactions in 8% of 53 patients with PMBCL. Serious adverse reactions occurred in 26% of patients and included arrhythmia (4%), cardiac tamponade (2%), myocardial infarction (2%), pericardial effusion (2%), and pericarditis (2%). Six (11%) patients died within 30 days of start of treatment. The most common adverse reactions (≥20%) were musculoskeletal pain (30%), upper respiratory tract infection and pyrexia (28% each), cough (26%), fatigue (23%), and dyspnea (21%).

In KEYNOTE-052, KEYTRUDA was discontinued due to adverse reactions in 11% of 370 patients with locally advanced or mUC. Serious adverse reactions occurred in 42% of patients; those ≥2% were urinary tract infection, hematuria, acute kidney injury, pneumonia, and urosepsis. The most common adverse reactions (≥20%) were fatigue (38%), musculoskeletal pain (24%), decreased appetite (22%), constipation (21%), rash (21%), and diarrhea (20%).

In KEYNOTE-045, KEYTRUDA was discontinued due to adverse reactions in 8% of 266 patients with locally advanced or mUC. The most common adverse reaction resulting in permanent discontinuation of KEYTRUDA was pneumonitis (1.9%). Serious adverse reactions occurred in 39% of KEYTRUDA-treated patients; those ≥2% were urinary tract infection, pneumonia, anemia, and pneumonitis. The most common adverse reactions (≥20%) in patients who received KEYTRUDA were fatigue (38%), musculoskeletal pain (32%), pruritus (23%), decreased appetite (21%), nausea (21%), and rash (20%).

In KEYNOTE-057, KEYTRUDA was discontinued due to adverse reactions in 11% of 148 patients with high-risk NMIBC. The most common adverse reaction resulting in permanent discontinuation of KEYTRUDA was pneumonitis (1.4%). Serious adverse reactions occurred in 28% of patients; those ≥2% were pneumonia (3%), cardiac ischemia (2%), colitis (2%), pulmonary embolism (2%), sepsis (2%), and urinary tract infection (2%). The most common adverse reactions (≥20%) were fatigue (29%), diarrhea (24%), and rash (24%).

Adverse reactions occurring in patients with MSI-H or dMMR CRC were similar to those occurring in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy.

In KEYNOTE-811, when KEYTRUDA was administered in combination with trastuzumab, fluoropyrimidine- and platinum-containing chemotherapy, KEYTRUDA was discontinued due to adverse reactions in 6% of 217 patients with locally advanced unresectable or metastatic HER2+ gastric or GEJ adenocarcinoma. The most common adverse reaction resulting in permanent discontinuation was pneumonitis (1.4%). In the KEYTRUDA arm versus placebo, there was a difference of ≥5% incidence between patients treated with KEYTRUDA versus standard of care for diarrhea (53% vs 44%) and nausea (49% vs 44%).

The most common adverse reactions (reported in ≥20%) in patients receiving KEYTRUDA in combination with chemotherapy were fatigue/asthenia, nausea, constipation, diarrhea, decreased appetite, rash, vomiting, cough, dyspnea, pyrexia, alopecia, peripheral neuropathy, mucosal inflammation, stomatitis, headache, weight loss, abdominal pain, arthralgia, myalgia, and insomnia.

In KEYNOTE-590, when KEYTRUDA was administered with cisplatin and fluorouracil to patients with metastatic or locally advanced esophageal or GEJ (tumors with epicenter 1 to 5 centimeters above the GEJ) carcinoma who were not candidates for surgical resection or definitive chemoradiation, KEYTRUDA was discontinued due to adverse reactions in 15% of 370 patients. The most common adverse reactions resulting in permanent discontinuation of KEYTRUDA (≥1%) were pneumonitis (1.6%), acute kidney injury (1.1%), and pneumonia (1.1%). The most common adverse reactions (≥20%) with KEYTRUDA in combination with chemotherapy were nausea (67%), fatigue (57%), decreased appetite (44%), constipation (40%), diarrhea (36%), vomiting (34%), stomatitis (27%), and weight loss (24%).

Adverse reactions occurring in patients with esophageal cancer who received KEYTRUDA as a monotherapy were similar to those occurring in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy.

In KEYNOTE-826, when KEYTRUDA was administered in combination with paclitaxel and cisplatin or paclitaxel and carboplatin, with or without bevacizumab (n=307), to patients with persistent, recurrent, or first-line metastatic cervical cancer regardless of tumor PD-L1 expression who had not been treated with chemotherapy except when used concurrently as a radio-sensitizing agent, fatal adverse reactions occurred in 4.6% of patients, including 3 cases of hemorrhage, 2 cases each of sepsis and due to unknown causes, and 1 case each of acute myocardial infarction, autoimmune encephalitis, cardiac arrest, cerebrovascular accident, femur fracture with perioperative pulmonary embolus, intestinal perforation, and pelvic infection. Serious adverse reactions occurred in 50% of patients receiving KEYTRUDA in combination with chemotherapy with or without bevacizumab; those ≥3% were febrile neutropenia (6.8%), urinary tract infection (5.2%), anemia (4.6%), and acute kidney injury and sepsis (3.3% each).

KEYTRUDA was discontinued in 15% of patients due to adverse reactions. The most common adverse reaction resulting in permanent discontinuation (≥1%) was colitis (1%).

For patients treated with KEYTRUDA, chemotherapy, and bevacizumab (n=196), the most common adverse reactions (≥20%) were peripheral neuropathy (62%), alopecia (58%), anemia (55%), fatigue/asthenia (53%), nausea and neutropenia (41% each), diarrhea (39%), hypertension and thrombocytopenia (35% each), constipation and arthralgia (31% each), vomiting (30%), urinary tract infection (27%), rash (26%), leukopenia (24%), hypothyroidism (22%), and decreased appetite (21%).

For patients treated with KEYTRUDA in combination with chemotherapy with or without bevacizumab, the most common adverse reactions (≥20%) were peripheral neuropathy (58%), alopecia (56%), fatigue (47%), nausea (40%), diarrhea (36%), constipation (28%), arthralgia (27%), vomiting (26%), hypertension and urinary tract infection (24% each), and rash (22%).

In KEYNOTE-158, KEYTRUDA was discontinued due to adverse reactions in 8% of 98 patients with previously treated recurrent or metastatic cervical cancer. Serious adverse reactions occurred in 39% of patients receiving KEYTRUDA; the most frequent included anemia (7%), fistula, hemorrhage, and infections [except urinary tract infections] (4.1% each). The most common adverse reactions (≥20%) were fatigue (43%), musculoskeletal pain (27%), diarrhea (23%), pain and abdominal pain (22% each), and decreased appetite (21%).

Adverse reactions occurring in patients with HCC were generally similar to those in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy, with the exception of increased incidences of ascites (8% Grades 3-4) and immune-mediated hepatitis (2.9%). Laboratory abnormalities (Grades 3-4) that occurred at a higher incidence were elevated AST (20%), ALT (9%), and hyperbilirubinemia (10%).

Among the 50 patients with MCC enrolled in study KEYNOTE-017, adverse reactions occurring in patients with MCC were generally similar to those occurring in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy. Laboratory abnormalities (Grades 3-4) that occurred at a higher incidence were elevated AST (11%) and hyperglycemia (19%).

In KEYNOTE-426, when KEYTRUDA was administered in combination with axitinib, fatal adverse reactions occurred in 3.3% of 429 patients. Serious adverse reactions occurred in 40% of patients, the most frequent (≥1%) were hepatotoxicity (7%), diarrhea (4.2%), acute kidney injury (2.3%), dehydration (1%), and pneumonitis (1%). Permanent discontinuation due to an adverse reaction occurred in 31% of patients; KEYTRUDA only (13%), axitinib only (13%), and the combination (8%); the most common were hepatotoxicity (13%), diarrhea/colitis (1.9%), acute kidney injury (1.6%), and cerebrovascular accident (1.2%). The most common adverse reactions (≥20%) were diarrhea (56%), fatigue/asthenia (52%), hypertension (48%), hepatotoxicity (39%), hypothyroidism (35%), decreased appetite (30%), palmar-plantar erythrodysesthesia (28%), nausea (28%), stomatitis/mucosal inflammation (27%), dysphonia (25%), rash (25%), cough (21%), and constipation (21%).

In KEYNOTE-564, when KEYTRUDA was administered as a single agent for the adjuvant treatment of renal cell carcinoma, serious adverse reactions occurred in 20% of patients receiving KEYTRUDA; the serious adverse reactions (≥1%) were acute kidney injury, adrenal insufficiency, pneumonia, colitis, and diabetic ketoacidosis (1% each). Fatal adverse reactions occurred in 0.2% including 1 case of pneumonia. Discontinuation of KEYTRUDA due to adverse reactions occurred in 21% of 488 patients; the most common (≥1%) were increased ALT (1.6%), colitis (1%), and adrenal insufficiency (1%). The most common adverse reactions (≥20%) were musculoskeletal pain (41%), fatigue (40%), rash (30%), diarrhea (27%), pruritus (23%), and hypothyroidism (21%).

Adverse reactions occurring in patients with MSI-H or dMMR endometrial carcinoma who received KEYTRUDA as a single agent were similar to those occurring in patients with melanoma or NSCLC who received KEYTRUDA as a single agent.

Adverse reactions occurring in patients with TMB-H cancer were similar to those occurring in patients with other solid tumors who received KEYTRUDA as a single agent.

Adverse reactions occurring in patients with recurrent or metastatic cSCC or locally advanced cSCC were similar to those occurring in patients with melanoma or NSCLC who received KEYTRUDA as a monotherapy.

In KEYNOTE-522, when KEYTRUDA was administered with neoadjuvant chemotherapy (carboplatin and paclitaxel followed by doxorubicin or epirubicin and cyclophosphamide) followed by surgery and continued adjuvant treatment with KEYTRUDA as a single agent (n=778) to patients with newly diagnosed, previously untreated, high-risk early-stage TNBC, fatal adverse reactions occurred in 0.9% of patients, including 1 each of adrenal crisis, autoimmune encephalitis, hepatitis, pneumonia, pneumonitis, pulmonary embolism, and sepsis in association with multiple organ dysfunction syndrome and myocardial infarction. Serious adverse reactions occurred in 44% of patients receiving KEYTRUDA; those ≥2% were febrile neutropenia (15%), pyrexia (3.7%), anemia (2.6%), and neutropenia (2.2%). KEYTRUDA was discontinued in 20% of patients due to adverse reactions. The most common reactions (≥1%) resulting in permanent discontinuation were increased ALT (2.7%), increased AST (1.5%), and rash (1%). The most common adverse reactions (≥20%) in patients receiving KEYTRUDA were fatigue (70%), nausea (67%), alopecia (61%), rash (52%), constipation (42%), diarrhea and peripheral neuropathy (41% each), stomatitis (34%), vomiting (31%), headache (30%), arthralgia (29%), pyrexia (28%), cough (26%), abdominal pain (24%), decreased appetite (23%), insomnia (21%), and myalgia (20%).

In KEYNOTE-355, when KEYTRUDA and chemotherapy (paclitaxel, paclitaxel protein-bound, or gemcitabine and carboplatin) were administered to patients with locally recurrent unresectable or metastatic TNBC who had not been previously treated with chemotherapy in the metastatic setting (n=596), fatal adverse reactions occurred in 2.5% of patients, including cardio-respiratory arrest (0.7%) and septic shock (0.3%). Serious adverse reactions occurred in 30% of patients receiving KEYTRUDA in combination with chemotherapy; the serious reactions in ≥2% were pneumonia (2.9%), anemia (2.2%), and thrombocytopenia (2%). KEYTRUDA was discontinued in 11% of patients due to adverse reactions. The most common reactions resulting in permanent discontinuation (≥1%) were increased ALT (2.2%), increased AST (1.5%), and pneumonitis (1.2%). The most common adverse reactions (≥20%) in patients receiving KEYTRUDA in combination with chemotherapy were fatigue (48%), nausea (44%), alopecia (34%), diarrhea and constipation (28% each), vomiting and rash (26% each), cough (23%), decreased appetite (21%), and headache (20%).

Lactation

Because of the potential for serious adverse reactions in breastfed children, advise women not to breastfeed during treatment and for 4 months after the final dose.

Pediatric Use

In KEYNOTE-051, 161 pediatric patients (62 pediatric patients aged 6 months to younger than 12 years and 99 pediatric patients aged 12 years to 17 years) were administered KEYTRUDA 2 mg/kg every 3 weeks. The median duration of exposure was 2.1 months (range: 1 day to 24 months).

Adverse reactions that occurred at a ≥10% higher rate in pediatric patients when compared to adults were pyrexia (33%), vomiting (30%), leukopenia (30%), upper respiratory tract infection (29%), neutropenia (26%), headache (25%), and Grade 3 anemia (17%).

Additional Indications for KEYTRUDA in the U.S.

Melanoma

KEYTRUDA is indicated for the treatment of patients with unresectable or metastatic melanoma.

KEYTRUDA is indicated for the adjuvant treatment of adult and pediatric (12 years and older) patients with stage IIB, IIC, or III melanoma following complete resection.

Head and Neck Squamous Cell Cancer

KEYTRUDA, in combination with platinum and fluorouracil (FU), is indicated for the first-line treatment of patients with metastatic or with unresectable, recurrent head and neck squamous cell carcinoma (HNSCC).

KEYTRUDA, as a single agent, is indicated for the first-line treatment of patients with metastatic or with unresectable, recurrent HNSCC whose tumors express PD-L1 [Combined Positive Score (CPS) ≥1] as determined by an FDA-approved test.

KEYTRUDA, as a single agent, is indicated for the treatment of patients with recurrent or metastatic HNSCC with disease progression on or after platinum-containing chemotherapy.

Classical Hodgkin Lymphoma

KEYTRUDA is indicated for the treatment of adult patients with relapsed or refractory classical Hodgkin lymphoma (cHL).

KEYTRUDA is indicated for the treatment of pediatric patients with refractory cHL, or cHL that has relapsed after 2 or more lines of therapy.

Primary Mediastinal Large B-Cell Lymphoma

KEYTRUDA is indicated for the treatment of adult and pediatric patients with refractory primary mediastinal large B-cell lymphoma (PMBCL), or who have relapsed after 2 or more prior lines of therapy. KEYTRUDA is not recommended for treatment of patients with PMBCL who require urgent cytoreductive therapy.

Urothelial Carcinoma

KEYTRUDA is indicated for the treatment of patients with locally advanced or metastatic urothelial carcinoma (mUC):

who are not eligible for any platinum-containing chemotherapy, or
who have disease progression during or following platinum-containing chemotherapy or within 12 months of neoadjuvant or adjuvant treatment with platinum-containing chemotherapy.
Non-muscle Invasive Bladder Cancer

KEYTRUDA is indicated for the treatment of patients with Bacillus Calmette-Guerin-unresponsive, high-risk, non-muscle invasive bladder cancer (NMIBC) with carcinoma in situ with or without papillary tumors who are ineligible for or have elected not to undergo cystectomy.

Microsatellite Instability-High or Mismatch Repair Deficient Cancer

KEYTRUDA is indicated for the treatment of adult and pediatric patients with unresectable or metastatic microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) solid tumors, as determined by an FDA-approved test, that have progressed following prior treatment and who have no satisfactory alternative treatment options.

This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials. The safety and effectiveness of KEYTRUDA in pediatric patients with MSI-H central nervous system cancers have not been established.

Microsatellite Instability-High or Mismatch Repair Deficient Colorectal Cancer

KEYTRUDA is indicated for the treatment of patients with unresectable or metastatic MSI-H or dMMR colorectal cancer (CRC) as determined by an FDA-approved test.

Gastric Cancer

KEYTRUDA, in combination with trastuzumab, fluoropyrimidine- and platinum-containing chemotherapy, is indicated for the first-line treatment of patients with locally advanced unresectable or metastatic HER2-positive gastric or gastroesophageal junction (GEJ) adenocarcinoma.

This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials.

Esophageal Cancer

KEYTRUDA is indicated for the treatment of patients with locally advanced or metastatic esophageal or gastroesophageal junction (GEJ) (tumors with epicenter 1 to 5 centimeters above the GEJ) carcinoma that is not amenable to surgical resection or definitive chemoradiation either:

in combination with platinum- and fluoropyrimidine-based chemotherapy, or
as a single agent after one or more prior lines of systemic therapy for patients with tumors of squamous cell histology that express PD-L1 (CPS ≥10) as determined by an FDA-approved test.
Cervical Cancer

KEYTRUDA, in combination with chemotherapy, with or without bevacizumab, is indicated for the treatment of patients with persistent, recurrent, or metastatic cervical cancer whose tumors express PD-L1 (CPS ≥1) as determined by an FDA-approved test.

KEYTRUDA, as a single agent, is indicated for the treatment of patients with recurrent or metastatic cervical cancer with disease progression on or after chemotherapy whose tumors express PD-L1 (CPS ≥1) as determined by an FDA-approved test.

Hepatocellular Carcinoma

KEYTRUDA is indicated for the treatment of patients with hepatocellular carcinoma (HCC) who have been previously treated with sorafenib. This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials.

Merkel Cell Carcinoma

KEYTRUDA is indicated for the treatment of adult and pediatric patients with recurrent locally advanced or metastatic Merkel cell carcinoma (MCC). This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials.

Renal Cell Carcinoma

KEYTRUDA, in combination with axitinib, is indicated for the first-line treatment of adult patients with advanced renal cell carcinoma (RCC).

KEYTRUDA is indicated for the adjuvant treatment of patients with RCC at intermediate-high or high risk of recurrence following nephrectomy, or following nephrectomy and resection of metastatic lesions.

Endometrial Carcinoma

KEYTRUDA, as a single agent, is indicated for the treatment of patients with advanced endometrial carcinoma that is MSI-H or dMMR, as determined by an FDA-approved test, who have disease progression following prior systemic therapy in any setting and are not candidates for curative surgery or radiation.

Tumor Mutational Burden-High Cancer

KEYTRUDA is indicated for the treatment of adult and pediatric patients with unresectable or metastatic tumor mutational burden-high (TMB-H) [≥10 mutations/megabase] solid tumors, as determined by an FDA-approved test, that have progressed following prior treatment and who have no satisfactory alternative treatment options. This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials. The safety and effectiveness of KEYTRUDA in pediatric patients with TMB-H central nervous system cancers have not been established.

Cutaneous Squamous Cell Carcinoma

KEYTRUDA is indicated for the treatment of patients with recurrent or metastatic cutaneous squamous cell carcinoma (cSCC) or locally advanced cSCC that is not curable by surgery or radiation.

Triple-Negative Breast Cancer

KEYTRUDA is indicated for the treatment of patients with high-risk early-stage triple-negative breast cancer (TNBC) in combination with chemotherapy as neoadjuvant treatment, and then continued as a single agent as adjuvant treatment after surgery.

KEYTRUDA, in combination with chemotherapy, is indicated for the treatment of patients with locally recurrent unresectable or metastatic TNBC whose tumors express PD-L1 (CPS ≥10) as determined by an FDA-approved test.

Merck’s focus on cancer

Our goal is to translate breakthrough science into innovative oncology medicines to help people with cancer worldwide. At Merck, the potential to bring new hope to people with cancer drives our purpose and supporting accessibility to our cancer medicines is our commitment. As part of our focus on cancer, Merck is committed to exploring the potential of immuno-oncology with one of the largest development programs in the industry across more than 30 tumor types. We also continue to strengthen our portfolio through strategic acquisitions and are prioritizing the development of several promising oncology candidates with the potential to improve the treatment of advanced cancers. For more information about our oncology clinical trials, visit www.merck.com/clinicaltrials.

New Data Presented at ESMO 2022 Show Veracyte’s Decipher Prostate Genomic Classifier May Help Inform Personalized Treatment Decisions in Men with Advanced Prostate Cancer

On September 11, 2022 Veracyte, Inc. (Nasdaq: VCYT) reported that new data from a Phase 3 trial of the multi-center, multi-national, randomized STAMPEDE platform protocol confirm the ability of the company’s Decipher Prostate Genomic Classifier to identify men with advanced prostate cancer who are more likely to benefit from intensified treatment with abiraterone acetate and prednisolone (AAP) in addition to standard-of-care androgen-deprivation therapy (Abstract #13580) (Press release, Veracyte, SEP 11, 2022, View Source [SID1234619365]). The findings were shared in an oral presentation today at the European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress 2022 and support the company’s continued expansion of its high-value genomic tests for patients in the United States and globally.

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"There are an increasing number of treatment options available for men with advanced prostate cancer, and the challenge for physicians is determining the best treatment combination for the right patient," said Gerhardt Attard, M.D., Ph.D., group leader of the Treatment Resistance Research Group at the University College London Cancer Institute, and STAMPEDE study co-investigator. "Our findings show that the Decipher Prostate Genomic Classifier – and tumor transcriptomes in general – can provide robust and clinically relevant prognostic information that may help guide important decisions about the treatment of advanced prostate cancer. Most notably, this study has identified patients who have poor prognoses and benefit greatly from addition of hormone treatment tablets, while other men have a good prognosis and may be able to avoid the toxicities of treatment."

The Decipher Prostate classifier is a 22-gene prognostic biomarker that provides a score that indicates the aggressiveness of an individual patient’s cancer, to help healthcare professionals more accurately categorize risk and select appropriate treatment.

The STAMPEDE (Systemic Therapy in Advancing or Metastatic Prostate Cancer: Evaluation of Drug Efficacy) protocol involves more than 10,000 men to date with high-risk, non-metastatic (M0) or metastatic (M1) prostate cancer who are starting long-term androgen-deprivation therapy (ADT) for the first time and are randomized to new treatments in (to date) seven Phase 3 trials. In this post-hoc analysis of the abiraterone acetate trial, Prof. Attard and colleagues evaluated the prognostic ability of the Decipher Prostate test among 781 men who were randomized to receive standard-of-care ADT with or without abiraterone acetate and prednisolone (AAP). They found that Decipher was prognostic in both the M0 and M1 patients, with higher Decipher scores associated with worse overall survival in M1 patients, and worse metastasis-free survival in M0 patients. Additionally, study findings suggest that men with high Decipher scores who received AAP had the greatest improvement in outcomes, while those with low Decipher scores received less absolute oncologic benefit from the addition of AAP.

"The Decipher Prostate classifier is the most validated genomic test in prostate cancer, and this analysis suggests that we may be able to further expand its use to help inform often-challenging decisions regarding intensification of therapy in men with advanced prostate cancer," said Elai Davicioni, Ph.D., Veracyte’s medical director, Urology. "We are honored to be working with leading prostate cancer researchers around the world to help further advance precision medicine."

"These findings, from one of the most important prostate cancer clinical trials of this era, further underscore our commitment to clinical rigor and innovation in our efforts to improve patient outcomes in prostate and other cancers," said Marc Stapley, Veracyte’s CEO. "They also further support our plan to deliver our high-value tests, including the Decipher Prostate Genomic Classifier, to patients around the world."

Among the other abstracts presented at the ESMO (Free ESMO Whitepaper) conference, researchers shared data derived from Veracyte’s Decipher GRID, a database of more than 100,000 whole-transcriptome profiles from patients with urologic cancers. Decipher GRID has led to the discovery or development of more than 400 genomic signatures that can be leveraged to help advance understanding of prostate and other urologic cancers, as well as to support biopharmaceutical companies’ targeted-therapy development programs.

In a poster presentation today (Abstract #1381P), researchers shared data showing that the Decipher GRID androgen receptor activity (AR-A) signature is prognostic for outcomes in men with castration-sensitive prostate cancer (CSPC) that has spread to no more than three other sites in the body (oligometastatic CSPC, or omCSPC). The researchers concluded that the GRID AR-A signature is prognostic for outcomes in men with omCSPC treated with metastasis-directed therapy (MDT, or radiotherapy) and that patients with a low AR-A score receive the most benefit from the addition of ADT to MDT.

Clovis Oncology’s Rubraca® (Rucaparib) as First-Line Maintenance Treatment Improves Progression-Free Survival in Women with Advanced Ovarian Cancer Across Disease Risk Subgroups

On September 11, 2022 Clovis Oncology, Inc. (NASDAQ: CLVS), reported results from a subgroup analysis of data from the monotherapy comparison of the randomized, Phase 3 ATHENA (GOG-3020/ENGOT-ov45) trial (ATHENA-MONO) (Press release, Clovis Oncology, SEP 11, 2022, View Source [SID1234619364]). These data showed that Rubraca as first-line maintenance treatment improved progression-free survival (PFS) versus placebo across disease risk subgroups including surgical outcome, response to first-line chemotherapy, and additional analyses in other subgroups. The data were presented by Rebecca S. Kristeleit, MD, PhD, of Guy’s and St. Thomas’ NHS Foundation Trust in London and lead ENGOT/NCRI National Cancer Research Institute (View Source) investigator of the ATHENA trial as a Mini Oral abstract at the European Society of Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress 2022 in Paris.

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"These additional results from the ATHENA-MONO analysis of the Phase 3 ATHENA trial demonstrate that rucaparib should be considered a new first-line maintenance treatment option for women with advanced ovarian cancer," Dr. Kristeleit said. "In this analysis, rucaparib prolonged progression-free survival for patients with or without high risk factors for progression, irrespective of molecular characteristics, adding to our understanding of the efficacy of rucaparib in the broadest population of patients assessed in a clinical trial for first-line PARP inhibitor monotherapy."

ATHENA is a double-blind, placebo-controlled, Phase 3 trial of Rubraca in first-line ovarian cancer maintenance treatment. It has two parts which are statistically independent. The results presented at ESMO (Free ESMO Whitepaper) are from the ATHENA-MONO part (Rubraca versus placebo), with results from the ATHENA-COMBO part (Rubraca plus nivolumab versus Rubraca) expected in Q1 2023.

"As further demonstrated by the additional data presented at ESMO (Free ESMO Whitepaper), the ATHENO-MONO analysis continues to reinforce the potential of Rubraca as a first-line maintenance therapy for women with advanced ovarian cancer," said Patrick J. Mahaffy, President and CEO of Clovis Oncology. "We remain grateful to the patients who participated in the trial and for the support of the clinical community familiar with these results."

ATHENA-MONO enrolled 538 women with high-grade ovarian, fallopian tube, or primary peritoneal cancer. The primary efficacy analysis evaluated two prospectively defined molecular subgroups in a step-down manner: 1) homologous recombination deficiency (HRD)-positive (inclusive of BRCAm tumors and BRCAwt/LOH high tumors), and 2) all patients randomized (overall intent-to-treat population [ITT]) in ATHENA-MONO. The following exploratory subgroup analyses are included in the ESMO (Free ESMO Whitepaper) presentation:

PFS by Surgical Outcome

Patients who received Rubraca as maintenance therapy showed benefit regardless of surgical outcome, whether there was complete resection (R0) during cytoreductive surgery or not.

In HRD-positive patients:

Patients who had a complete resection following cytoreductive surgery (R0):
Rubraca (n=107), median PFS not yet reached (NR); placebo (n=33), median PFS of 22.1 months
Hazard ratio of 0.52 (95% [Confidence Interval] CI: 0.30-0.92)
Patients who did not have a complete resection following cytoreductive surgery (non-R0):
Rubraca (n=78), median PFS of 20.3 months; placebo (n=16), median PFS of 9.1 months
Hazard ratio of 0.29 (95% CI: 0.15-0.56)
Among the ITT population:

Patients who had a complete resection following cytoreductive surgery (R0):
Rubraca (n=263), median PFS of 25.1 months; placebo (n=73), median PFS of 12.0 months
Hazard ratio of 0.60 (95% CI: 0.43-0.84)
Patients who did not have a complete resection following cytoreductive surgery (non-R0):
Rubraca (n=164), median PFS of 13.9 months; placebo (n=38), median PFS of 6.4 months
Hazard ratio of 0.41 (95% CI: 0.27-0.62)
PFS by First-Line Chemotherapy Response

Similarly, patients treated with Rubraca as maintenance therapy showed benefit among all subgroups when evaluated against response per RECIST v1.1 at any time during first-line chemotherapy.

Among HRD-positive patients:

Patients who demonstrated a partial response to first-line chemotherapy:
Rubraca (n=33), median PFS of 14.8 months; placebo (n=9), median PFS of 9.1 months
Hazard ratio of 0.43 (95% CI: 0.18-1.02)
Patients who demonstrated a complete response to first-line chemotherapy:
Rubraca (n=38), median PFS of 25.8 months; placebo (n=4), median PFS NR
Hazard ratio of 0.41 (95% CI: 0.10-1.63)
Among the ITT population:

Patients who demonstrated a partial response to first-line chemotherapy:
Rubraca (n=76), median PFS of 12.2 months; placebo (n=22), median PFS of 6.4 months
Hazard ratio of 0.37 (95% CI: 0.21-0.65)
Patients who demonstrated a complete response to first-line chemotherapy:
Rubraca (n=73), median PFS of 15.6 months; placebo (n=11), median PFS of 6.4 months
Hazard ratio of 0.48 (95% CI: 0.23-1.03)
Additional Analyses in the ITT Population by Subgroup

Additional analyses in other subgroups based on baseline clinical characteristics, including FIGO stage, timing of surgery, and CA-125 levels, also demonstrated that patients treated with Rubraca experienced a progression-free survival benefit compared to those treated with placebo. Safety was similar between subgroups analyzed.

Dr. Kristeleit’s presentation, as well as other company-sponsored Rubraca data presented at ESMO (Free ESMO Whitepaper), can be viewed at the time of presentation at View Source

Rubraca is not currently approved in the first-line ovarian cancer maintenance setting.

About Rubraca (rucaparib)

Rucaparib is an oral, small molecule inhibitor of PARP1, PARP2 and PARP3 being developed in multiple tumor types, including ovarian and metastatic castration-resistant prostate cancers, as monotherapy, and in combination with other anti-cancer agents. Exploratory studies in other tumor types are also underway.

Rubraca is an unlicensed medical product outside of the US and Europe.

Rubraca Ovarian Cancer US FDA Approved Indication

Rubraca is indicated for the maintenance treatment of adult women with recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in a complete or partial response to platinum-based chemotherapy.

Select Important Safety Information

Myelodysplastic Syndrome (MDS)/Acute Myeloid Leukemia (AML) have occurred in patients treated with Rubraca, and are potentially fatal adverse reactions. In 1,146 treated patients, MDS/AML occurred in 20 patients (1.7%), including those in long term follow-up. Of these, 8 occurred during treatment or during the 28 day safety follow-up (0.7%). The duration of Rubraca treatment prior to the diagnosis of MDS/AML ranged from 1 month to approximately 53 months. The cases were typical of secondary MDS/cancer therapy-related AML; in all cases, patients had received previous platinum-containing regimens and/or other DNA damaging agents.

Do not start Rubraca until patients have recovered from hematological toxicity caused by previous chemotherapy (≤ Grade 1). Monitor complete blood counts for cytopenia at baseline and monthly thereafter for clinically significant changes during treatment. For prolonged hematological toxicities (> 4 weeks), interrupt Rubraca or reduce dose and monitor blood counts weekly until recovery. If the levels have not recovered to Grade 1 or less after 4 weeks or if MDS/AML is suspected, refer the patient to a hematologist for further investigations, including bone marrow analysis and blood sample for cytogenetics. If MDS/AML is confirmed, discontinue Rubraca.

Based on its mechanism of action and findings from animal studies, Rubraca can cause fetal harm when administered to a pregnant woman. Apprise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment and for 6 months following the last dose of Rubraca.

Most common adverse reactions in ARIEL3 (≥ 20%; Grade 1-4) were nausea (76%), fatigue/asthenia (73%), abdominal pain/distention (46%), rash (43%), dysgeusia (40%), anemia (39%), AST/ALT elevation (38%), constipation (37%), vomiting (37%), diarrhea (32%), thrombocytopenia (29%), nasopharyngitis/upper respiratory tract infection (29%), stomatitis (28%), decreased appetite (23%), and neutropenia (20%).

Co-administration of rucaparib can increase the systemic exposure of CYP1A2, CYP3A, CYP2C9, or CYP2C19 substrates, which may increase the risk of toxicities of these drugs. Adjust dosage of CYP1A2, CYP3A, CYP2C9, or CYP2C19 substrates, if clinically indicated. If co-administration with warfarin (a CYP2C9 substrate) cannot be avoided, consider increasing frequency of international normalized ratio (INR) monitoring.

Because of the potential for serious adverse reactions in breast-fed children from Rubraca, advise lactating women not to breastfeed during treatment with Rubraca and for 2 weeks after the last dose.

Please Click here for full Prescribing Information for Rubraca.

You may also report side effects to Clovis Oncology, Inc. at 1-415-409-7220 (US toll) or 1-844-CLVS-ONC (1-844-258-7662; US toll-free).

Rubraca (rucaparib) European Union (EU) including Northern Ireland, and Great Britain (GB) authorized use and Important Safety Information

Rubraca is indicated as monotherapy for the maintenance treatment of adult patients with platinum-sensitive relapsed high-grade epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in response (complete or partial) to platinum-based chemotherapy.

Rubraca is indicated as monotherapy treatment of adult patients with platinum sensitive, relapsed or progressive, BRCA mutated (germline and/or somatic), high-grade epithelial ovarian, fallopian tube, or primary peritoneal cancer, who have been treated with ≥2 prior lines of platinum-based chemotherapy, and who are unable to tolerate further platinum-based chemotherapy.

Efficacy of Rubraca as treatment for relapsed or progressive epithelial ovarian cancer (EOC), fallopian tube cancer (FTC), or primary peritoneal cancer (PPC) has not been investigated in patients who have received prior treatment with a PARP inhibitor. Therefore, use in this patient population is not recommended.

Summary warnings and precautions:

Hematological toxicity

During treatment with Rubraca, events of myelosuppression (anemia, neutropenia, thrombocytopenia) may be observed and are typically first observed after 8–10 weeks of treatment with Rubraca. These reactions are manageable with routine medical treatment and/or dose adjustment for more severe cases. Complete blood count testing prior to starting treatment with Rubraca, and monthly thereafter, is advised. Patients should not start Rubraca treatment until they have recovered from hematological toxicities caused by previous chemotherapy (CTCAE grade ≥1).

Supportive care and institutional guidelines should be implemented for the management of low blood counts for the treatment of anemia and neutropenia. Rubraca should be interrupted or dose reduced according to Table 1 (see Posology and Method of Administration [4.2] of the Summary of Product Characteristics [SPC]) and blood counts monitored weekly until recovery. If the levels have not recovered to CTCAE grade 1 or better after 4 weeks, the patient should be referred to a hematologist for further investigations.

MDS/AML

MDS/AML, including cases with fatal outcome, have been reported in patients who received Rubraca. The duration of therapy with Rubraca in patients who developed MDS/AML varied from less than 1 month to approximately 28 months.

If MDS/AML is suspected, the patient should be referred to a hematologist for further investigations, including bone marrow analysis and blood sampling for cytogenetics. If, following investigation for prolonged hematological toxicity, MDS/AML is confirmed, Rubraca should be discontinued.

Photosensitivity

Photosensitivity has been observed in patients treated with Rubraca. Patients should avoid spending time in direct sunlight because they may burn more easily during Rubraca treatment; when outdoors, patients should wear a hat and protective clothing, and use sunscreen and lip balm with sun protection factor of 50 or greater.

Gastrointestinal toxicities

Gastrointestinal toxicities (nausea and vomiting) are frequently reported with Rubraca and are generally low grade (CTCAE grade 1 or 2) and may be managed with dose reduction (refer to Posology and Method of Administration [4.2], Table 1 of the SPC) or interruption. Antiemetics, such as 5-HT3 antagonists, dexamethasone, aprepitant and fosaprepitant, can be used as treatment for nausea/vomiting and may also be considered for prophylactic (i.e. preventative) use prior to starting Rubraca. It is important to proactively manage these events to avoid prolonged or more severe events of nausea/vomiting which have the potential to lead to complications such as dehydration or hospitalization.

Embryofetal toxicity

Rubraca can cause fetal harm when administered to a pregnant woman based on its mechanism of action and findings from animal studies. In an animal reproduction study, administration of Rubraca to pregnant rats during the period of organogenesis resulted in embryo-fetal toxicity at exposures below those in patients receiving the recommended human dose of 600 mg twice daily (see Preclinical Safety Data [5.3] of the SPC).

Pregnancy/contraception

Pregnant women should be informed of the potential risk to a fetus. Women of reproductive potential should be advised to use effective contraception during treatment and for 6 months following the last dose of Rubraca (see section 4.6 of the SPC). A pregnancy test before initiating treatment is recommended in women of reproductive potential.

Click here to access the current EU SmPC (including for Northern Ireland). Click here to access the current GB SmPC.

Healthcare professionals should report any suspected adverse reactions via their national reporting systems.

About the ATHENA Clinical Trial

ATHENA (GOG 3020/ENGOT-ov45) (NCT03522246) is an international, randomized, double-blind, phase III trial consisting of two separate and fully independently powered study comparisons evaluating Rubraca monotherapy (ATHENA-MONO) and Rubraca in combination with nivolumab (ATHENA-COMBO) as maintenance treatment for patients with newly diagnosed advanced epithelial ovarian, fallopian tube, or primary peritoneal cancer. ATHENA enrolled approximately 1000 patients across 24 countries, all women with newly diagnosed ovarian cancer who responded to their first-line chemotherapy. The trial completed accrual in 2020 and was conducted in association with the Gynecologic Oncology Group (GOG) in the US and the European Network of Gynaecological Oncological Trial groups (ENGOT) in Europe. GOG and ENGOT are the two largest cooperative groups in the US and Europe dedicated to the treatment of gynecological cancers.

ATHENA-MONO is evaluating the benefit of Rubraca monotherapy versus placebo in 538 women in this patient population. The primary efficacy analysis evaluated two prospectively defined molecular sub-groups in a step-down manner: 1) HRD-positive (inclusive of BRCA mutant) tumors, and 2) the intent-to-treat population, or all patients treated in ATHENA-MONO.

The ATHENA-COMBO portion of the trial, anticipated to readout in Q1 2023, is evaluating the magnitude of benefit of adding Opdivo (nivolumab) to Rubraca monotherapy in the ovarian cancer first-line maintenance treatment setting. ATHENA-COMBO is anticipated to be the first Phase 3 dataset to readout evaluating the combination of a PARP inhibitor and an immune checkpoint inhibitor as maintenance treatment following completion and response to front-line chemotherapy.

About Ovarian Cancer

Ovarian cancer is the eighth leading cause of cancer-related death among women worldwide. In 2020, GLOBOCAN estimated 314,000 women received a new diagnosis of ovarian cancer and approximately 207,200 women died from ovarian cancer. According to the American Cancer Society, an estimated more than 19,000 women will be diagnosed with ovarian cancer in the United States and there will be an estimated nearly 13,000 deaths from ovarian cancer in 2022. According to GLOBOCAN, an estimated 66,000 women in Europe are diagnosed each year with ovarian cancer, and ovarian cancer is among those cancers with the highest rate of deaths. According to the NIH National Cancer Institute, more than 75% of women are diagnosed with ovarian cancer at an advanced stage.

Despite recent advances in the therapeutic landscape of newly diagnosed ovarian cancer, advanced ovarian cancer is still considered incurable for the majority of patients, and the optimal treatment strategy has yet to be determined.i Although most respond initially to this treatment, 80% of patients with advanced ovarian cancer will have a recurrence and require subsequent therapies.ii

About Biomarkers in Ovarian Cancer

In the high-grade epithelial ovarian cancer setting, a patient’s tumor can be classified based on the genetic biomarker status: those with homologous recombination deficiencies, or HRD-positive, include those with a mutation of the BRCA gene (BRCAm), inclusive of germline and somatic mutations of BRCA, which represent approximately 25 percent of patientsiii,iv; and those with a range of genetic abnormalities other than BRCAm, which result in other homologous recombination deficiencies that represent an additional estimated 25 percent of patients (HRD-positive, BRCAwt)v; in addition, those whose test results show no deficiencies in homologous recombination repair (HRD-negative) represent the remaining approximate 50 percent of patients.vi