Genentech’s Hemlibra (emicizumab-kxwh) Provided Sustained Bleed Control in the Largest Pivotal Study to Date of Children With Hemophilia A With Factor VIII Inhibitors

On December 3, 2018 Genentech, a member of the Roche Group (SIX: RO, ROG; OTCQX: RHHBY), announced today data from the primary analysis of the Phase III HAVEN 2 study evaluating Hemlibra (emicizumab-kxwh) prophylaxis in children younger than 12 years of age with hemophilia A with factor VIII inhibitors, including longer follow-up for once-weekly dosing and new data for less frequent dosing schedules (every two weeks or every four weeks) (Press release, Genentech, DEC 3, 2018, View Source [SID1234531845]). These data from the largest pivotal study in children with hemophilia A with factor VIII inhibitors were presented at the 60th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting.

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"Children with inhibitors are at increased risk of life-threatening bleeds and may experience frequent, repeated bleeding into joints," said Guy Young, M.D., director of Hemostasis and Thrombosis Center, Children’s Hospital Los Angeles, and professor of Pediatrics, University of Southern California Keck School of Medicine, Los Angeles, California. "These updated data from HAVEN 2 showed that the majority of children with hemophilia A with factor VIII inhibitors treated with emicizumab-kxwh had zero treated bleeds across three different dosing schedules, reinforcing the ability of this medicine to provide sustained, effective bleed control."

In updated results from the HAVEN 2 study with a median of 11 additional months of data, 76.9 percent (95 percent CI: 64.8; 86.5) of children with hemophilia A with factor VIII inhibitors treated with Hemlibra once weekly (n=65) experienced zero treated bleeds. Importantly, once-weekly Hemlibra showed a 99 percent (95 percent CI: 97.7; 99.4) reduction in treated bleeds compared to prior treatment with bypassing agents (BPAs) as prophylaxis (n=15) or on-demand (n=3) in a prospective intra-patient comparison. New data also showed that 90 percent (95 percent CI: 55.5; 99.7) of children with factor VIII inhibitors receiving Hemlibra every two weeks (n=10) and 60 percent (95 percent CI: 26.2; 87.8) of children receiving Hemlibra every four weeks (n=10) experienced zero treated bleeds, demonstrating clinically meaningful bleed control at both dosing schedules. No cases of thrombotic microangiopathy (TMA) or thrombotic events occurred. The most common adverse events (AEs) in the HAVEN 2 study primary analysis were consistent with those previously observed in the interim analyses.

"The updated analysis from the HAVEN 2 study supports the potential of Hemlibra to control bleeds at less frequent subcutaneous dosing, providing parents and their children more flexibility to choose a treatment schedule that is right for them," said Sandra Horning, M.D., chief medical officer and head of Global Product Development. "Many children with hemophilia A with factor VIII inhibitors have already experienced the benefits of Hemlibra, and with these new positive data, we are confident that this treatment will continue to make a meaningful difference in their lives."

Hemlibra is approved in over 50 countries worldwide, including the U.S., EU member states and Japan, to treat people of all ages with hemophilia A with factor VIII inhibitors based on pivotal data that included interim results from the HAVEN 2 study. In October 2018, the U.S. Food and Drug Administration (FDA) also approved Hemlibra to treat people of all ages with hemophilia A without factor VIII inhibitors. Hemlibra is the only FDA-approved treatment for people with hemophilia A with and without factor VIII inhibitors that can be administered subcutaneously (under the skin) and at multiple dosing options (once weekly, every two weeks or every four weeks). Submissions to other regulatory authorities around the world are ongoing.

Hemlibra has been studied in one of the largest pivotal clinical trial programs in people with hemophilia A with and without factor VIII inhibitors, including four Phase III HAVEN studies (HAVEN 1, HAVEN 2, HAVEN 3 and HAVEN 4).

About HAVEN 2 (NCT02795767)

HAVEN 2 is a multicenter, open-label, clinical study in children younger than 12 years of age with hemophilia A with factor VIII inhibitors. The study is evaluating the efficacy, safety and pharmacokinetics of once-weekly, every two weeks or every four weeks subcutaneous administration of Hemlibra prophylaxis.

The HAVEN 2 primary analysis included 85 children (once-weekly dosing, n=65; every two week dosing, n=10; every four week dosing, n=10) with hemophilia A with factor VIII inhibitors. The median follow-up period for each cohort was 58 (range 17.9–92.6), 21.3 (range 18.6–24.1), and 19.9 (range 8.9–24.1) weeks, respectively. The prospective intra-patient comparison included 18 patients from the once-weekly cohort previously treated with BPAs either as prophylaxis (n=15) or on-demand (n=3) as part of a non-interventional study.

The study met its primary endpoint and key secondary endpoints. Data presented at the 60th ASH (Free ASH Whitepaper) Annual Meeting showed:

HAVEN 2 (NCT02795767)
Hemlibra prophylaxis 1.5 mg/kg QW
(Arm A; n=65)*


Annualized bleeding rate [ABR] †
(95% CI)


Median ABR
(Interquartile range; IQR)

Treated bleeds (primary endpoint)**
0.3
(0.17; 0.50)


0.0
(0.00; 0.00)

All bleeds
3.2
(1.94; 5.22)


0.6
(0.00; 2.92)

Treated spontaneous bleeds
0.0
(0.01; 0.10)


0.0
(0.00; 0.00)

Treated joint bleeds
0.2
(0.08; 0.29)


0.0
(0.00; 0.00)

Treated target joint bleeds
Not estimable


0.0
(0.00; 0.00)

*Efficacy assessment was conducted only in patients aged <12 years who had spent at least 12 weeks on the study. Excludes three patients aged >12 years.

A loading dose of 3 mg/kg Hemlibra was given for four weeks followed by the maintenance dose listed.

† Estimated using negative binomial regression

**In patients receiving Hemlibra once weekly (Arm A), 76.9% (95% CI, 64.8; 86.5) experienced zero treated bleeds and 23.1% experienced 1–3 treated bleeds.


Hemlibra prophylaxis 3 mg/kg
Q2W
(Arm B; n=10)*


Hemlibra prophylaxis 6 mg/kg
Q4W
(Arm C; n=10)*

ABR (95% CI) †


0.2
(0.03; 1.72)


2.2
(0.69; 6.81)

Median ABR (IQR)
0.0
(0.00; 0.00)


0.0
(0.00; 3.26)

% patients with zero treated
bleeds
(95% CI)


90.0%
(55.5; 99.7)


60.0%
(26.2; 87.8)

% patients with 1-3 treated
bleeds
(95% CI)


10.0%
(0.3; 44.5)


40.0%
(12.2; 73.8)

*A loading dose of 3 mg/kg Hemlibra was given for four weeks followed by the maintenance dose listed.

† Estimated using negative binomial regression


The most common adverse reactions occurring in 10 percent or more of children treated with Hemlibra were common cold symptoms (nasopharyngitis; 37.5 percent), injection site reactions (29.5 percent), fever (pyrexia; 23.9 percent), upper respiratory tract infection (23.9 percent), cough (23.9 percent), diarrhea (15.9 percent), vomiting (15.9 percent), headache (14.8 percent), contusion (12.5 percent), fall (12.5 percent) and influenza (10.2 percent). No cases of TMA or thrombotic events occurred. Four patients tested positive for anti-drug antibodies (ADAs) to Hemlibra. Of these patients, two had ADAs with neutralizing potential based on reduced Hemlibra levels. As previously reported, the ADA in one of these patients resulted in reduced efficacy of Hemlibra and led to discontinuation of treatment. The other patient had no bleeds as of the clinical cut-off date of the study.

About Hemlibra

Hemlibra is a bispecific factor IXa- and factor X-directed antibody. It is designed to bring together factor IXa and factor X, proteins required to activate the natural coagulation cascade and restore the blood clotting process for hemophilia A patients. Hemlibra is a prophylactic (preventative) treatment that can be administered by an injection of a ready-to-use solution under the skin (subcutaneously) once weekly, every two weeks or every four weeks. Hemlibra was created by Chugai Pharmaceutical Co., Ltd. and is being co-developed globally by Chugai, Roche and Genentech.

Hemlibra U.S. Indication

Hemlibra is a prescription medicine used for routine prophylaxis to prevent or reduce the frequency of bleeding episodes in adults and children, ages newborn and older, with hemophilia A with or without factor VIII inhibitors.

Important Safety Information

What is the most important information to know about Hemlibra?

Hemlibra increases the potential for blood to clot. Patients should carefully follow their healthcare provider’s instructions regarding when to use an on-demand bypassing agent or factor VIII, and the dose and schedule to use for breakthrough bleed treatment. Hemlibra may cause the following serious side effects when used with activated prothrombin complex concentrate (aPCC; FEIBA), including:

Thrombotic microangiopathy (TMA). This is a condition involving blood clots and injury to small blood vessels that may cause harm to one’s kidneys, brain, and other organs. Patients should get medical help right away if they have any of the following signs or symptoms during or after treatment with Hemlibra:
confusion
weakness
swelling of arms and legs
yellowing of skin and eyes
stomach (abdomen) or back pain
nausea or vomiting
feeling sick
decreased urination
Blood clots (thrombotic events). Blood clots may form in blood vessels in the arm, leg, lung, or head. Patients should get medical help right away if they have any of these signs or symptoms of blood clots during or after treatment with Hemlibra:
swelling in arms or legs
pain or redness in the arms or legs
shortness of breath
chest pain or tightness
fast heart rate
cough up blood
feel faint
headache
numbness in the face
eye pain or swelling
trouble seeing
If aPCC (FEIBA) is needed, patients should talk to their healthcare provider in case they feel they need more than 100 U/kg of aPCC (FEIBA) total.

Before using Hemlibra, patients should tell their healthcare provider about all of their medical conditions, including if they:

are pregnant or plan to become pregnant. It is not known if Hemlibra may harm an unborn baby. Females who are able to become pregnant should use birth control (contraception) during treatment with Hemlibra.
are breastfeeding or plan to breastfeed. It is not known if Hemlibra passes into breast milk.
Patients should tell their healthcare provider about all the medicines they take, including prescription medicines, over-the-counter medicines, vitamins, or herbal supplements. Patients should keep a list of them to show their healthcare provider and pharmacist when they get a new medicine.

How should patients use Hemlibra?

Patients should see the detailed "Instructions for Use" that comes with Hemlibra for information on how to prepare and inject a dose of Hemlibra, and how to properly throw away (dispose of) used needles and syringes.

Stop (discontinue) prophylactic use of bypassing agents the day before starting Hemlibra prophylaxis.
Patients may continue prophylactic use of factor VIII for the first week of Hemlibra prophylaxis.
What should patients know about lab monitoring?

Hemlibra may interfere with laboratory tests that measure how well blood is clotting and may cause a false reading. Patients should talk to their healthcare provider about how this may affect their care.

The most common side effects of Hemlibra include: redness, tenderness, warmth, or itching at the site of injection; headache; and joint pain.

These are not all of the possible side effects of Hemlibra. Patients should speak to their healthcare provider for medical advice about side effects.

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Patients should not use Hemlibra for a condition for which it was not prescribed. Patients should not give Hemlibra to other people, even if they have the same symptoms that they have. It may harm them. Patients can ask their pharmacist or healthcare provider for information about Hemlibra that is written for health professionals.

Side effects may be reported to the FDA at (800) FDA-1088 or View Source Side effects may also be reported to Genentech at (888) 835-2555.

Please see the Hemlibra full Prescribing Information and Medication Guide for more important safety information including Serious Side Effects.

About hemophilia A

Hemophilia A is an inherited, serious disorder in which a person’s blood does not clot properly, leading to uncontrolled and often spontaneous bleeding. Hemophilia affects around 20,000 people in the United States, with hemophilia A being the most common form and approximately 50-60 percent of people living with a severe form of the disorder.

People with hemophilia A either lack or do not have enough of a clotting protein called factor VIII. In a healthy person, when a bleed occurs, factor VIII brings together the clotting factors IXa and X, which is a critical step in the formation of a blood clot to help stop bleeding. Depending on the severity of their disorder, people with hemophilia A can bleed frequently, especially into their joints or muscles. These bleeds can present a significant health concern as they often cause pain and can lead to chronic swelling, deformity, reduced mobility and long-term joint damage.

A serious complication of treatment is the development of inhibitors to factor VIII replacement therapies. Inhibitors are antibodies developed by the body’s immune system that bind to and block the efficacy of replacement factor VIII, making it difficult, if not impossible, to obtain a level of factor VIII sufficient to control bleeding.

NCCN Oncology Research Program Awarded $2 Million from Lilly to Study Mechanisms of Resistance to CDK4 & 6 Inhibitors in Breast Cancer Treatment

On December 3, 2018 The National Comprehensive Cancer Network (NCCN) Oncology Research Program (ORP) reported plans to solicit and oversee research projects that evaluate cyclin dependent kinase (CDK)4 & 6 inhibitors in the treatment of hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer and underlying mechanisms of resistance (Press release, Eli Lilly, DEC 3, 2018, View Source [SID1234531861]). Research funding will be provided by a $2 million grant from Eli Lilly and Company (NYSE: LLY).

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"This program is part of our ongoing efforts to improve the lives of people with cancer," said Wui-Jin Koh, MD, Chief Medical Officer, NCCN. "The NCCN ORP facilitates clinical investigation into important questions. In this instance, we’re managing research to understand mechanisms of resistance to CDK4 & 6 inhibitor treatment in metastatic breast cancer."

"We are excited to support NCCN to further understand the mechanisms of resistance to CDK4 & 6 inhibitors in advanced breast cancer, which is a central and critically important issue in this treatment landscape," said Maura Dickler, MD, Vice President of Late Phase Development, Lilly Oncology. "This work with NCCN is an example of our ongoing commitment to optimize treatment for people living with metastatic breast cancer."

CDK4 & 6 inhibitors have emerged as a key treatment in many patients with HR+ and HER2- metastatic breast cancer. However, resistance to CDK4 & 6 inhibitors, either intrinsic or acquired, can limit their effectiveness. This project seeks to support preclinical and clinical studies that elucidate mechanisms of resistance to CDK4 & 6 inhibitors and provide insights into how this resistance can be overcome or mitigated, resulting in potentially greater efficacy. Lilly will provide abemaciclib, a CDK4 & 6 inhibitor, for studies when needed. This endeavor by the NCCN ORP will utilize the scientific expertise from investigators across the 28 NCCN Member Institutions, and proposals will be reviewed and awarded by a scientific steering committee made up of experts from these NCCN institutions.

Earlier this year, the NCCN ORP was engaged by Lilly for a separate project, seeking scalable, reproducible interventions to address gaps in clinical care for treating gastric cancer. To learn more about the NCCN ORP, including ongoing clinical trials, recent publications, and shared resources, visit NCCN.org/ORP.

IMBRUVICA® (ibrutinib) Phase 3 Combination Data with Obinutuzumab Finds Significant Improvement in Progression-Free Survival (PFS) Over Standard Chemoimmunotherapy of Chlorambucil Plus Obinutuzumab for Previously Untreated Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (CLL/SLL)

On December 3, 2018 AbbVie (NYSE: ABBV), a research-based global biopharmaceutical company, reported results from the Phase 3 iLLUMINATE (PCYC-1130) trial, evaluating the chemotherapy-free, anti-CD20 combination of IMBRUVICA (ibrutinib) plus obinutuzumab (Gazyva) in patients with previously untreated chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) (Press release, AbbVie, DEC 3, 2018, View Source [SID1234531878]). At a median follow-up of 31 months, study results showed IMBRUVICA plus obinutuzumab significantly prolonged progression-free survival (PFS) (median not reached [NR] vs. 19 months) with a 77 percent reduction in risk of progression or death versus chlorambucil plus obinutuzumab, the current National Comprehensive Cancer Network guidelines Category 1 treatment regimen (hazard ratio [HR] 0.23; 95% confidence interval [CI]: 0.15-0.37; P<0.0001).

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The data were presented today in an oral session at the 2018 American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting (abstract #691) and were simultaneously published in The Lancet Oncology. Based on these data, a supplemental New Drug Application (sNDA) was recently accepted for Priority Review by the U.S. Food and Drug Administration (FDA) to expand the use of IMBRUVICA in combination with obinutuzumab in previously untreated CLL/SLL. IMBRUVICA is a once-daily, first-in-class Bruton’s tyrosine kinase (BTK) inhibitor that is administered orally, and is jointly developed and commercialized by Pharmacyclics LLC, an AbbVie company, and Janssen Biotech, Inc.

"iLLUMINATE represents one of three IMBRUVICA Phase 3 studies in chronic lymphocytic leukemia being presented at this year’s ASH (Free ASH Whitepaper). Results from the iLLUMINATE study support the use of IMBRUVICA as a chemotherapy-free, anti-CD20 combination treatment option versus the current National Comprehensive Cancer Network guidelines Category 1 treatment of chlorambucil plus obinutuzumab," said Danelle James, M.D., M.A.S., Head of Clinical Science, Pharmacyclics LLC, an AbbVie company. "These latest findings, in addition to seven-year long-term data and a Late-Breaker at this year’s ASH (Free ASH Whitepaper), add to the robust amount of data supporting the use of IMBRUVICA as backbone therapy in CLL and SLL."

CLL is one of the two most common forms of leukemia in adults and is a type of cancer that can develop from cells in the bone marrow that later mature into certain white blood cells (called lymphocytes).1 While these cancer cells start in the bone marrow, they then later spread into the blood. The prevalence of CLL is approximately 115,000 patients in the U.S. with approximately 20,000 newly diagnosed patients every year.2,3 SLL is a slow-growing lymphoma biologically similar to CLL in which too many immature white blood cells cause lymph nodes to become larger than normal.4 Both CLL and SLL are predominately diseases of the elderly, with a median age at diagnosis ranging from 65-70 years.5

"For years, we had to rely on chemotherapy as the only treatment option for patients with previously untreated chronic lymphocytic leukemia and small lymphocytic lymphoma," said Carol Moreno, M.D., Ph.D., Consultant Hematologist, Hospital de la Santa Creu Sant Pau, Autonomous University of Barcelona, Barcelona, Spain, and lead study investigator of iLLUMINATE. "We’re pleased to share results from iLLUMINATE that help show that it is possible to provide efficacious treatment for patients with CLL and SLL without the use of chemotherapy."

About Abstract #691: Ibrutinib + Obinutuzumab Versus Chlorambucil + Obinutuzumab as First-Line Treatment in Patients with Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma (CLL/SLL): Results from Phase 3 iLLUMINATE

Oral presentation: Monday, December 3 at 10:30 a.m. PST

In the Phase 3 iLLUMINATE (PCYC-1130) study, newly diagnosed CLL patients were randomized to receive IMBRUVICA 420 milligrams (mg) once daily continuously in combination with obinutuzumab 1000 mg intravenously over six cycles (n=113); or chlorambucil 0.5 mg/kg on Days 1 and 15 of each 28-day cycle plus obinutuzumab 1000 mg intravenously over six cycles (n=116). The primary endpoint was PFS, as assessed by an Independent Review Committee (IRC). The study also evaluated: PFS for patients with high-risk features (unmutated IGHV, del11q, del17p or TP53 mutation); rate of undetectable minimal residual disease (MRD); overall response rate (ORR); overall survival (OS); and safety.

At a median follow-up of 31.3 months, ibrutinib plus obinutuzumab significantly prolonged the IRC-assessed PFS compared to chlorambucil plus obinutuzumab, with a 77 percent reduction in risk of progression or death (median NR vs. 19 months; hazard ratio [HR] 0.23; 95% CI: 0.15-0.37; P<0.0001). At 30 months, the IRC-assessed PFS rates were 79 percent and 31 percent with ibrutinib plus obinutuzumab and chlorambucil plus obinutuzumab, respectively. The investigator-assessed PFS was also significantly improved with ibrutinib plus obinutuzumab versus chlorambucil plus obinutuzumab (median NR vs. 21.9 months; HR 0.26; 95% CI: 0.16-0.42; P<0.0001).

The PFS in the IMBRUVICA plus obinutuzumab arm in the high-risk population, including those with unmutated IGHV, del11q, del17p, or TP53 mutation was assessed, with an 85 percent reduction in risk of progression or death (median not reached vs. 14.7 months; HR 0.15; 95% CI: 0.09-0.27; P<0.0001). In addition, IRC-assessed ORR was higher in the ibrutinib plus obinutuzumab arm versus the chlorambucil plus obinutuzumab arm (88% vs. 73%); complete response (CR)/complete response with incomplete blood recovery (CRi) rates were also higher with 19 percent versus eight percent, respectively. The investigator-assessed ORR was also higher in the ibrutinib plus obinutuzumab arm versus the chlorambucil plus obinutuzumab arm (91% vs. 81%); CR/CRi rates were also higher with 41 percent versus 16 percent, respectively. Depth of remission as reflected by undetectable MRD in blood and/or bone marrow was greater in patients with ibrutinib plus obinutuzumab, with 35 percent of patients showing undetectable MRD compared to 25 percent of patients with chlorambucil plus obinutuzumab. OS rates at 31 months were 86 percent for the ibrutinib arm compared to 85 percent for the chlorambucil arm.

Most common Grade 3 or higher adverse events (AEs) in the ibrutinib plus obinutuzumab arm versus chlorambucil plus obinutuzumab arm were neutropenia (43% vs. 63%), thrombocytopenia (35% vs. 25%), diarrhea (34% vs. 10%), cough (27% vs. 12%), infusion-related reactions (25% vs. 58%), arthralgia (22% vs. 10%), pyrexia (19% vs. 26%), anemia (17% vs. 25%), and nausea (12% vs. 30%). Ibrutinib plus obinutuzumab also seemed to decrease the risk of infusion reactions related to the use of obinutuzumab.

To view all IMBRUVICA company-sponsored or investigator-initiated studies being presented at ASH (Free ASH Whitepaper) 2018, please visit: View Source

About IMBRUVICA
IMBRUVICA (ibrutinib) is a first-in-class, oral, once-daily therapy that mainly works by inhibiting a protein called Bruton’s tyrosine kinase (BTK). BTK is a key signaling molecule in the B-cell receptor signaling complex that plays an important role in the survival and spread of malignant B cells.6 IMBRUVICA blocks signals that tell malignant B-cells to multiply and spread uncontrollably.

IMBRUVICA is FDA-approved in six distinct patient populations: chronic lymphocytic leukemia (CLL), small lymphocytic lymphoma (SLL), Waldenström’s macroglobulinemia (WM), along with previously-treated mantle cell lymphoma (MCL), previously-treated marginal zone lymphoma (MZL) and previously-treated chronic graft-versus-host disease (cGVHD).7

IMBRUVICA was first approved for adult patients with MCL who have received at least one prior therapy in November 2013.
Soon after, IMBRUVICA was approved in adult CLL patients who have received at least one prior therapy in February 2014. By July 2014, the therapy received approval for adult CLL patients with 17p deletion, and by March 2016, the therapy was approved as a frontline CLL treatment.
IMBRUVICA was approved for adult patients with WM in January 2015.
In May 2016, IMBRUVICA was approved in combination with bendamustine and rituximab (BR) for adult patients with CLL/SLL.
In January 2017, IMBRUVICA was approved for adult patients with MZL who require systemic therapy and have received at least one prior anti-CD20-based therapy.
In August 2017, IMBRUVICA was approved for adult patients with cGVHD that failed to respond to one or more lines of systemic therapy.
In August 2018, IMBRUVICA plus rituximab was approved for adult patients with WM.
Accelerated approval was granted for the MCL and MZL indications based on overall response rate. Continued approval for MCL and MZL may be contingent upon verification and description of clinical benefit in confirmatory trials.

IMBRUVICA has been granted four Breakthrough Therapy Designations from the U.S. FDA. This designation is intended to expedite the development and review of a potential new drug for serious or life-threatening diseases.8 IMBRUVICA was one of the first medicines to receive FDA approval via the new Breakthrough Therapy Designation pathway.

IMBRUVICA is being studied alone and in combination with other treatments in several blood and solid tumor cancers and other serious illnesses. IMBRUVICA has one of the most robust clinical oncology development programs for a single molecule in the industry, with more than 130 ongoing clinical trials. There are approximately 30 ongoing company-sponsored trials, 14 of which are in Phase 3, and more than 100 investigator-sponsored trials and external collaborations that are active around the world. To date, more than 135,000 patients around the world have been treated with IMBRUVICA in clinical practice and clinical trials.

IMPORTANT SAFETY INFORMATION

WARNINGS AND PRECAUTIONS

Hemorrhage: Fatal bleeding events have occurred in patients treated with IMBRUVICA. Grade 3 or higher bleeding events (intracranial hemorrhage [including subdural hematoma], gastrointestinal bleeding, hematuria, and post-procedural hemorrhage) have occurred in 3% of patients, with fatalities occurring in 0.3% of 1,011 patients exposed to IMBRUVICA in clinical trials. Bleeding events of any grade, including bruising and petechiae, occurred in 44% of patients treated with IMBRUVICA.

The mechanism for the bleeding events is not well understood.

IMBRUVICA may increase the risk of hemorrhage in patients receiving antiplatelet or anticoagulant therapies and patients should be monitored for signs of bleeding.

Consider the benefit-risk of withholding IMBRUVICA for at least 3 to 7 days pre and post-surgery depending upon the type of surgery and the risk of bleeding.

Infections: Fatal and non-fatal infections (including bacterial, viral, or fungal) have occurred with IMBRUVICA therapy. Grade 3 or greater infections occurred in 24% of 1,011 patients exposed to IMBRUVICA in clinical trials. Cases of progressive multifocal leukoencephalopathy (PML) and Pneumocystis jirovecii pneumonia (PJP) have occurred in patients treated with IMBRUVICA. Consider prophylaxis according to standard of care in patients who are at increased risk for opportunistic infections.

Monitor and evaluate patients for fever and infections and treat appropriately.

Cytopenias: Treatment-emergent Grade 3 or 4 cytopenias including neutropenia (23%), thrombocytopenia (8%), and anemia (3%) based on laboratory measurements occurred in patients with B-cell malignancies treated with single agent IMBRUVICA.

Monitor complete blood counts monthly.

Cardiac Arrhythmias: Fatal and serious cardiac arrhythmias have occurred with IMBRUVICA therapy. Grade 3 or greater ventricular tachyarrhythmias occurred in 0.2% of patients, and Grade 3 or greater atrial fibrillation and atrial flutter occurred in 4% of 1,011 patients exposed to IMBRUVICA in clinical trials. These events have occurred particularly in patients with cardiac risk factors, hypertension, acute infections, and a previous history of cardiac arrhythmias.

Periodically monitor patients clinically for cardiac arrhythmias. Obtain an ECG for patients who develop arrhythmic symptoms (e.g., palpitations, lightheadedness, syncope, chest pain) or new onset dyspnea. Manage cardiac arrhythmias appropriately, and if it persists, consider the risks and benefits of IMBRUVICA treatment and follow dose modification guidelines.

Hypertension: Hypertension has occurred in 12% of 1,011 patients treated with IMBRUVICA in clinical trials with a median time to onset of 5 months (range, 0.03 to 22 months). Monitor patients for new onset hypertension or hypertension that is not adequately controlled after starting IMBRUVICA. Adjust existing anti-hypertensive medications and/or initiate anti-hypertensive treatment as appropriate.

Second Primary Malignancies: Other malignancies (9%) including non-skin carcinomas (2%) have occurred in 1,011 patients treated with IMBRUVICA in clinical trials. The most frequent second primary malignancy was non-melanoma skin cancer (6%).

Tumor Lysis Syndrome: Tumor lysis syndrome has been infrequently reported with IMBRUVICA therapy. Assess the baseline risk (e.g., high tumor burden) and take appropriate precautions.

Monitor patients closely and treat as appropriate.

Embryo-Fetal Toxicity: Based on findings in animals, IMBRUVICA can cause fetal harm when administered to a pregnant woman. Advise women to avoid becoming pregnant while taking IMBRUVICA and for 1 month after cessation of therapy. If this drug is used during pregnancy or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to a fetus. Advise men to avoid fathering a child during the same time period.

ADVERSE REACTIONS

B-cell malignancies: The most common adverse reactions (≥20%) in patients with B-cell malignancies (MCL, CLL/SLL, WM and MZL) were thrombocytopenia (58%)*, neutropenia (58%)*, diarrhea (42%), anemia (39%)*, rash (31%), musculoskeletal pain (31%), bruising (31%), nausea (28%), fatigue (27%), hemorrhage (23%), and pyrexia (20%).

The most common Grade 3 or 4 adverse reactions (≥5%) in patients with B-cell malignancies (MCL, CLL/SLL, WM and MZL) were neutropenia (36%)*, thrombocytopenia (15%)*, and pneumonia (10%).

Approximately 6% (CLL/SLL), 14% (MCL), 14% (WM) and 10% (MZL) of patients had a dose reduction due to adverse reactions. Approximately 4%-10% (CLL/SLL), 9% (MCL), and 7% (WM [5%] and MZL [13%]) of patients discontinued due to adverse reactions.

cGVHD: The most common adverse reactions (≥20%) in patients with cGVHD were fatigue (57%), bruising (40%), diarrhea (36%), thrombocytopenia (33%)*, stomatitis (29%), muscle spasms (29%), nausea (26%), hemorrhage (26%), anemia (24%)*, and pneumonia (21%).

The most common Grade 3 or 4 adverse reactions (≥5%) reported in patients with cGVHD were fatigue (12%), diarrhea (10%), neutropenia (10%)*, pneumonia (10%), sepsis (10%), hypokalemia (7%), headache (5%), musculoskeletal pain (5%), and pyrexia (5%).

Twenty-four percent of patients receiving IMBRUVICA in the cGVHD trial discontinued treatment due to adverse reactions. Adverse reactions leading to dose reduction occurred in 26% of patients.

*Treatment-emergent decreases (all grades) were based on laboratory measurements and adverse reactions.

DRUG INTERACTIONS

CYP3A Inhibitors: Dose adjustments may be recommended.

CYP3A Inducers: Avoid coadministration with strong CYP3A inducers.

SPECIFIC POPULATIONS

Hepatic Impairment (based on Child-Pugh criteria): Avoid use of IMBRUVICA in patients with severe baseline hepatic impairment. In patients with mild or moderate impairment, reduce IMBRUVICA dose.

GSK reaches agreement to acquire TESARO, an oncology focused biopharmaceutical company

On December 3, 2018 GlaxoSmithKline plc (LSE/NYSE: GSK) and TESARO Inc (NASDAQ: TSRO) reported that the Companies have entered into a definitive agreement pursuant to which GSK will acquire TESARO, an oncology-focused company based in Waltham, Massachusetts, for an aggregate cash consideration of approximately $5.1 billion (£4.0 billion) (Press release, TESARO, DEC 3, 2018, View Source [SID1234531813]). The proposed transaction significantly strengthens GSK’s pharmaceutical business, accelerating the build of GSK’s pipeline and commercial capability in oncology.

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TESARO is a commercial-stage biopharmaceutical company, with a major marketed product, Zejula (niraparib), an oral poly ADP ribose polymerase (PARP) inhibitor currently approved for use in ovarian cancer. PARP inhibitors are transforming the treatment of ovarian cancer, notably demonstrating marked clinical benefit in patients with and without germline mutations in a BRCA gene (gBRCA). Zejula is currently approved in the US and Europe as a treatment for adult patients with recurrent ovarian cancer who are in response to platinum-based chemotherapy, regardless of BRCA mutation or biomarker status.

Clinical trials to assess the use of Zejula in "all-comers" patient populations, as a monotherapy and in combinations, for the significantly larger opportunity of first line maintenance treatment of ovarian cancer are also underway. These ongoing trials are evaluating the potential benefit of Zejula in patients who carry gBRCA mutations as well as the larger population of patients without gBRCA mutations whose tumours are HRD-positive and HRD-negative. Results from the first of these studies, PRIMA, are expected to be available in the second half of 2019.

GSK also believes PARP inhibitors offer significant opportunities for use in the treatment of multiple cancer types. In addition to ovarian cancer, Zejula is currently being investigated for use as a possible treatment in lung, breast and prostate cancer, both as a monotherapy and in combination with other medicines, including with TESARO’s own anti-PD-1 antibody (dostarlimab, formerly known as TSR-042).

In addition to Zejula, TESARO has several oncology assets in its pipeline including antibodies directed against PD-1, TIM-3 and LAG-3 targets.

Emma Walmsley, Chief Executive Officer, GSK, said: "The acquisition of TESARO will strengthen our pharmaceuticals business by accelerating the build of our oncology pipeline and commercial footprint, along with providing access to new scientific capabilities. This combination will support our aim to deliver long-term sustainable growth and is consistent with our capital allocation priorities. We look forward to working with TESARO’s talented team to bring valuable new medicines to patients."

Hal Barron, Chief Scientific Officer and President, R&D, GSK, said: "Our strong belief is that PARP inhibitors are important medicines that have been under appreciated in terms of the impact they can have on cancer patients. We are optimistic that Zejula will demonstrate benefit in patients with ovarian cancer beyond those who are BRCA-positive as front-line treatment. We are also very excited that through this transaction, we will have the opportunity to work with an outstanding Boston-based oncology group with deep clinical development expertise and together we will explore Zejula’s efficacy beyond ovarian cancer into multiple tumour types to help many more patients."

Lonnie Moulder, Chief Executive Officer, TESARO, said: "This transaction marks the beginning of a new global partnership that will accelerate our oncology business and allow our mission of delivering transformative products to individuals living with cancer to endure. Our Board and Management team are very pleased to announce this transaction, and we are grateful to the management team at GSK for their tremendous vision and the opportunity to preserve and build upon the impact we have had in the cancer community to date."

Mary Lynne Hedley, President and Chief Operating Officer, TESARO, said: "This partnership marks an evolution in the way we live out the TESARO mission and will allow us to more rapidly deliver on our commitment to patients. I am excited to be partnering with our new colleagues at GSK as together we advance innovative scientific and drug development strategies that ultimately enable us to provide more time for more patients."

Financial highlights
The acquisition price of $75 per share in cash represents a 110% premium to TESARO’s 30 day Volume Weighted Average Price of $35.67 and an aggregate consideration of approximately $5.1 billion (£4.0 billion) including the assumption of TESARO’s net debt.

Zejula’s revenues in its current approved indication as second-line maintenance treatment for ovarian cancer were $166 million for the 9 months ended 30 September 2018.

GSK expects the acquisition of TESARO and associated R&D and commercial investments will impact Adjusted EPS for the first two years by mid to high single digit percentages, reducing thereafter with the acquisition expected to start to be accretive to Adjusted EPS by 2022.

GSK’s guidance for full-year 2018 Adjusted EPS growth remains unchanged at 8 to 10% at CER. GSK continues to expect to deliver on its previously published Group Outlooks to 2020, but following the acquisition of TESARO now expects Adjusted EPS growth at CER for the period 2016-2020 to be at the bottom end of the mid to high single digit percentage CAGR range.

Guidance and Group Outlooks are given on the bases set out on pages 37 and 38 of GSK’s Q3 2018 results, including definitions of CER growth and Adjusted results.

GSK confirms no change to its current dividend policy and continues to expect to pay 80p in dividends for 2018.

GSK expects to fund the acquisition from cash resources and drawing under a new acquisition facility.

Structure and Terms of the Transaction
Under the terms of the merger agreement between GSK and TESARO, unanimously approved by TESARO’s Board of Directors, a subsidiary of GSK will commence a tender offer within the next 10 business days to acquire all of the issued and outstanding shares of TESARO common stock for a price of $75 per share in cash upon completion of the offer. The transaction is expected to complete in the first quarter of 2019, subject to satisfaction of customary closing conditions, including the tender by TESARO stockholders of at least one share more than 50% of the issued and outstanding shares of TESARO and required regulatory approvals, including clearance by the US Federal Trade Commission. Following closing of the tender offer, GSK will acquire any shares of TESARO that are not tendered in the tender offer through a second-step merger under Delaware law at the tender offer price.

The value of the gross assets of TESARO to be acquired (as at 30 September 2018) is $711 million (£555 million at the rate of £1 = $1.28, being the 30 November spot rate). The net losses of the business were $466 million for the 9 months ended 30 September 2018 (£345 million, at the rate of £1 = $1.35, being the average rate for the 9 months ended 30 September 2018).

GSK is in discussions with several key executives of TESARO to ensure their continued employment with the company.

Additional information and where to find it
This press announcement is for informational purposes only and is neither an offer to purchase nor a solicitation of an offer or a recommendation to sell securities, nor is it a substitute for the tender offer materials that GSK and its indirect subsidiary will file with the Securities and Exchange Commission (the "SEC"). The tender offer for the outstanding shares of TESARO’s common stock described in this press announcement has not commenced. At the time the tender offer is commenced, GSK and Adriatic Acquisition Corporation will file, or will cause to be filed, a Schedule TO Tender Offer Statement with the Securities and Exchange Commission (the "SEC"), and thereafter TESARO will file a Schedule 14D-9 Solicitation/Recommendation Statement with the SEC, in each case with respect to the tender offer. The Schedule TO Tender Offer Statement (including an offer to purchase, a related letter of transmittal and other offer documents) and the Schedule 14D-9 Solicitation/Recommendation Statement will contain important information that should be read carefully before any decision is made with respect to the tender offer. Those materials (once they become available) will be made available to TESARO’s stockholders at no expense to them by the information agent for the tender offer, which will be announced. In addition, those materials and all other documents filed by or caused to be filed by TESARO or GSK with the SEC will be available at no charge on the SEC’s website at www.sec.gov. In addition to the Schedule 14D-9 Solicitation/Recommendation Statement and Schedule TO Offer Statement (once each becomes available), TESARO and GSK file or furnish, as applicable, annual, quarterly and current reports and other information with the SEC. You may read and copy any reports or other information filed by TESARO at the SEC public reference room at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-0330 for further information on the public reference room. TESARO’s and GSK’s filings with the SEC are also available to the public from commercial document-retrieval services and at the SEC’s website at www.sec.gov

This announcement contains inside information for the purposes of Article 7 of EU Regulation 596/2014. The person responsible for arranging the release of this announcement on behalf of GSK is V.A. Whyte, Company Secretary.

Analyst conference call details
14:00 UK / 09:00 EST Monday 3 December

UK Direct: 01296 480 100
UK freephone: 0800 783 0906

US Direct: +1 718 354 1175
US freephone: + 1866 804 8688

Passcode: 177 245 38

Rest of world dial in numbers:
View Source

TESARO portfolio and pipeline
Zejula is an orally active and potent poly ADP-ribose polymerase (PARP) inhibitor. PARP is a family of proteins involved in many functions in a cell, including DNA repair, gene expression, cell cycle control, intracellular trafficking and energy metabolism. PARP proteins play key roles in single strand break repair through the base excision repair pathway. PARP inhibitors have shown activity as a monotherapy against tumours with existing DNA repair defects, such as BRCA1 and BRCA2, and as a combination therapy when administered together with anti- cancer agents that induce DNA damage or activate the immune system.

TESARO’s development pipeline also has a number of novel oncology candidates that modulate the function of the immune system via different mechanisms. By blocking the interaction of PD-1, TIM-3 and LAG-3 with their respective ligands, antibodies to these targets aim to restore immune anti-cancer function in patients across a variety of tumour types.

Compound Indication Phase
Niraparib Ovarian cancer maintenance (PRIMA) Phase 3
Niraparib + dostarlimab (anti-PD-1 mAb) First-line ovarian cancer treatment (FIRST) Phase 3
Niraparib + anti-PD-1 mAb Advanced NSCLC, squamous cell carcinoma of the lung Phase 2
Niraparib + bevacizumab First-line ovarian cancer maintenance (OVARIO) Phase 2
Niraparib + bevacizumab Recurrent ovarian cancer (AVANOVA) (in collaboration with ENGOT, the European Network for Gynaecological Oncological Trial groups) Phase 2
Niraparib + pembrolizumab Triple negative breast or ovarian cancer (TOPACIO) Phase 2
Dostarlimab (anti-PD-1 mAb) MSI-H tumours including metastatic endometrial cancer (GARNET) Phase 1
Niraparib + chemotherapy Ewing’s sarcoma (in collaboration with SARC, the Sarcoma Alliance for Research through Collaboration) Phase 1
Dostarlimab (anti-PD-1 mAb) Various tumour types Phase 1
Dostarlimab +/- bevacizumab + niraparib or carboplatin-paclitaxel Advanced or metastatic cancer Phase 1
TSR-022 (anti-TIM-3 mAb) Various tumour types (AMBER) Phase 1
TSR-033 (anti-LAG-3 mAb Various tumour types (CITRINO) Phase 1
Anti-LAG-3/PD-1 bispecific antibody Various tumour types Discovery
Undisclosed small molecule and antibody I-O candidates Various tumour types Discovery

Advisors
GSK is being advised by PJT Partners and additionally by Bank of America Merrill Lynch, who is also acting as corporate broker. Legal advice is being provided by Shearman & Sterling LLP, with Slaughter and May advising on the acquisition facility.

Citi is serving as TESARO’s lead financial advisor, with Centerview Partners also providing financial advice. Legal advice is being provided by Ropes & Gray LLP, and Hogan Lovells.

Actinium Highlights Actimab-A Phase 2 Trial Results in Older Patients with Unfit AML from ASH Annual Meeting Demonstrating Single Agent Activity of the CD33 Antibody Radiation Conjugate

On December 3, 2018 Actinium Pharmaceuticals, Inc. (NYSE AMERICAN: ATNM) ("Actinium" or "the Company"), reported that updated data from its Phase 2 trial of Actimab-A was highlighted in a poster presentation at the 60th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting (Press release, Actinium Pharmaceuticals, DEC 3, 2018, View Source [SID1234531829]). The Actimab-A Phase 2 trial studied the ARC or Antibody Radiation Conjugate Actinium-225 – lintuzumab, which delivers potent alpha particle radiation to CD33 expressing cells, in patients with untreated AML over the age of 60 that are unfit for induction chemotherapy. Patients received fractionated doses of Ac-225 – lintuzumab on days 1 and day 8. The poster presented at ASH (Free ASH Whitepaper) highlighted data from a second cohort of 27 patients that received 1.5 µCi/kg/fraction.

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Dr. Mark Berger, Actinium’s Chief Medical Officer said, "In this difficult to treat patient population, we are pleased to have observed this level of single-agent activity from Actimab-A with the benefit of minimal extramedullary toxicities. These results strongly support continued development and we have prioritized highly attractive areas that can leverage the strengths of our ARC approach. A major initiative is our Actimab-MDS trial where we have a clear pathway to a pivotal trial established with the FDA for high-risk patients with myelodysplastic syndromes. Another exciting opportunity is via combination trials with agents like venetoclax in the relapsed, refractory AML setting where the apparent synergy of mechanisms can translate to a therapeutic advantage. In addition, we are pursuing other highly-differentiated opportunities for Actimab-A as a single-agent in patients with high unmet needs where the extremely high-potency of an ARC can be used safely at low doses. An example is our novel trial in AML patients with minimal residual disease post-remission."

Overall response rate in this dosing cohort was 22% (6/27) with 3 CRps and 3 CRis. Among responding patients, 2 had adverse cytogenetics and 1 had previous MDS. This data is in addition to previously reported data from 13 patients that were treated at an original dose cohort of 2.0 µCi/kg/fraction where a 69% overall response rate was reported. The dose was lowered to 1.5 µCi/kg/fraction due to myelosuppression lasting longer than 6 weeks, which resulted in a reduction in the incidence of prolonged thrombocytopenia from 46% to 30%.

The median age of patients in this cohort of the Phase 2 trial was 75 (60 -87) with 81% of patients having ECOG performance status of 1 (13/27) or 2 (9/27). Although patients had untreated acute myeloid leukemia (AML), 52% (14/27) of patients had prior hematologic disease with 79% (11/14) having myelodysplastic syndrome (MDS), 14% (2/14) having chromic myelomonocytic leukemia (CMML) and 7% (1/14) having myelofibrosis. A majority of patients had unfavorable cytogenetics with 56% (15/27) having intermediate-risk and 26% (7/27) having high-risk cytogenetics. In addition, patients were evaluated for CD33 splicing polymorphism and responses occurred irrespective of cytogenetic risk category or splicing genotype.

Actinium also highlighted that preliminary preclinical data from its Iomab-ACT program was highlighted in the ASH (Free ASH Whitepaper) supplemental edition of blood. Actinium’s preclinical studies showed a considerable reduction in both lymphocyte and myeloid cell counts, inclusive of immune suppressive regulatory T cells and myeloid derived suppressor cells. Further, the cytoreduction by CD45-RIT was shown to induce the expression of immune homeostatic cytokines including IL-15.The abstract can be accessed he View Source

Sandesh Seth, Actinium’s Chairman and CEO said, "Given the recent and increasing competition in AML, we believe the future development pathways selected by our team strategically differentiate Actinium’s CD33 program in a manner that can maximize value creation. We have done this by focusing on an area with limited or no competition via Actimab-MDS in targeted conditioning. We have also leveraged our AWE or Antibody Radiation Conjugate technology platform to add a different modality, namely targeted radiation, to other areas of unmet or underserved needs as evidenced by our Actimab-A plus Venetoclax combinations and Actimab-A MRD trials. With our lead asset, Iomab-B progressing well in its pivotal trial, the near-pivotal Actimab-MDS program and the Iomab-ACT program for lymphodepletion prior to CAR-T, our multi-asset pipeline will enable our company to build a franchise opportunity in targeted conditioning which is almost singular in the industry."