On November 25, 2015 Pfizer Inc. (NYSE:PFE) reported that the European Commission has approved a label update to expand use of XALKORI (crizotinib) to first-line treatment of adults with anaplastic lymphoma kinase (ALK)-positive advanced non-small cell lung cancer (NSCLC) (Press release, Pfizer, NOV 25, 2015, View Source [SID:1234508364]). The Summary of Product Characteristics also has been updated to include efficacy data from PROFILE 1014, which demonstrated that XALKORI significantly prolonged progression-free survival (PFS) in previously untreated patients with ALK-positive advanced nonsquamous NSCLC when compared to standard platinum-based chemotherapy regimens.1

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"The European Commission’s decision to approve XALKORI in the first-line setting reinforces XALKORI’s role as a standard of care for patients with ALK-positive advanced NSCLC," said Andreas Penk, MD, regional president Oncology Europe, Africa and the Middle East, Head Greater China and Asia-Pacific Oncology Regions. "This milestone further underscores the importance of early and routine biomarker testing in patients with advanced NSCLC so that these patients can be identified and treated appropriately."

The European Commission’s approval of XALKORI follows the positive opinion issued by the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency, and is supported by the results from PROFILE 1014, a Phase 3 global, randomized, open-label, two-arm study evaluating the efficacy and safety of XALKORI in patients previously untreated for ALK-positive advanced nonsquamous NSCLC.1

XALKORI was the first ALK inhibitor approved by regulatory authorities in the United States (U.S.), EU, China and Japan, and it is now approved in more than 85 countries. XALKORI is widely recognized as a standard of care for patients with ALK-positive advanced NSCLC. To date, more than 20,000 patients have been treated with XALKORI worldwide.2

XALKORI is an oral, ALK inhibitor.3 By inhibiting the ALK fusion protein, XALKORI blocks signaling in a number of cell pathways that are believed to be critical for the growth and survival of tumor cells, which may lead to growth inhibition or regression of tumors.4,5

About Non-Small Cell Lung Cancer

Worldwide, lung cancer is the leading cause of cancer death in both men and women.6 NSCLC accounts for about 85 percent of lung cancer cases and remains difficult to treat, particularly in the metastatic setting.7 Approximately 57 percent of NSCLC patients are diagnosed late with metastatic, or advanced, disease where the five-year survival rate is only 5 percent.8

XALKORI (crizotinib) Indication and Important Safety Information (as per U.S. Prescribing Information)

XALKORI is a kinase inhibitor indicated for the treatment of patients with metastatic non-small cell lung cancer (NSCLC) whose tumors are anaplastic lymphoma kinase (ALK)-positive as detected by an FDA-approved test.

Hepatotoxicity: Drug-induced hepatotoxicity with fatal outcome occurred in 0.1% of patients treated with XALKORI across clinical trials (n=1669). Transaminase elevations generally occurred within the first 2 months. Monitor with liver function tests including ALT and total bilirubin every 2 weeks during the first 2 months of treatment, then once a month and as clinically indicated, with more frequent repeat testing for increased liver transaminases, alkaline phosphatase, or total bilirubin in patients who develop transaminase elevations. Permanently discontinue for ALT/AST elevation >3 times ULN with concurrent total bilirubin elevation >1.5 times ULN (in the absence of cholestasis or hemolysis); otherwise, temporarily suspend and dose-reduce XALKORI as indicated.

Interstitial Lung Disease (Pneumonitis): Severe, life-threatening, or fatal interstitial lung disease (ILD)/pneumonitis can occur. Across clinical trials (n=1669), 2.9% of XALKORI-treated patients had any grade ILD, 1.1% had Grade 3/4, and 0.5% had fatal ILD. These cases generally occurred within 3 months after initiation of treatment. Monitor for pulmonary symptoms indicative of ILD/pneumonitis. Exclude other potential causes and permanently discontinue XALKORI in patients with drug-related ILD/pneumonitis.

QT Interval Prolongation: QTc prolongation can occur. Across clinical trials (n=1560), 2.1% of patients had QTcF (corrected QT by the Fridericia method) ≥500 ms and 5.0% had an increase from baseline QTcF ≥60 ms by automated machine-read evaluation of ECG. Avoid use in patients with congenital long QT syndrome. Consider periodic monitoring with ECGs and electrolytes in patients with congestive heart failure, bradyarrhythmias, electrolyte abnormalities, or who are taking medications that prolong the QT interval. Permanently discontinue XALKORI in patients who develop QTc >500 ms or ≥60 ms change from baseline with Torsade de pointes, polymorphic ventricular tachycardia, or signs/symptoms of serious arrhythmia. Withhold XALKORI in patients who develop QTc >500 ms on at least 2 separate ECGs until recovery to a QTc ≤480 ms, then resume at a reduced dose.

Bradycardia: Symptomatic bradycardia can occur. Across clinical trials, bradycardia occurred in 12.3% of patients treated with XALKORI (N=1669). Avoid use in combination with other agents known to cause bradycardia. Monitor heart rate and blood pressure regularly. In cases of symptomatic bradycardia that is not life-threatening, hold XALKORI until recovery to asymptomatic bradycardia or to a heart rate of ≥60 bpm, re-evaluate the use of concomitant medications, and adjust the dose of XALKORI. Permanently discontinue for life-threatening bradycardia due to XALKORI; however, if associated with concomitant medications known to cause bradycardia or hypotension, hold XALKORI until recovery to asymptomatic bradycardia or to a heart rate of ≥60 bpm. If concomitant medications can be adjusted or discontinued, restart XALKORI at 250 mg once daily with frequent monitoring.

Severe Visual Loss: Across clinical trials, the incidence of Grade 4 visual field defect with vision loss was 0.2% (N=1669). Discontinue XALKORI in patients with new onset of severe visual loss (best corrected vision less than 20/200 in one or both eyes). Perform an ophthalmological evaluation. There is insufficient information to characterize the risks of resumption of XALKORI in patients with a severe visual loss; a decision to resume should consider the potential benefits to the patient.

Vision Disorders: Most commonly visual impairment, photopsia, blurred vision or vitreous floaters, occurred in 62% of 1669 patients. The majority (95%) of these patients had Grade 1 visual adverse reactions. 0.8% of patients had Grade 3 and 0.2% had Grade 4 visual impairment. The majority of patients on the XALKORI arms in Studies 1 and 2 (>50%) reported visual disturbances which occurred at a frequency of 4-7 days each week, lasted up to 1 minute, and had mild or no impact on daily activities.

Embryofetal Toxicity: XALKORI can cause fetal harm when administered to a pregnant woman. Advise of the potential risk to the fetus. Advise females of reproductive potential and males with female partners of reproductive potential to use effective contraception during treatment and for at least 45 days (females) or 90 days (males) respectively, following the final dose of XALKORI.

Adverse Reactions: Safety was evaluated in a phase 3 study in previously untreated patients with ALK-positive metastatic NSCLC randomized to XALKORI (n=171) or chemotherapy (n=169). Serious adverse events were reported in 34% of patients treated with XALKORI, the most frequent were dyspnea (4.1%) and pulmonary embolism (2.9%). Fatal adverse events in XALKORI-treated patients occurred in 2.3% of patients, consisting of septic shock, acute respiratory failure, and diabetic ketoacidosis. Common adverse reactions (all grades) occurring in ≥25% and more commonly (≥5%) in patients treated with XALKORI vs chemotherapy were vision disorder (71% vs 10%), diarrhea (61% vs 13%), edema (49% vs 12%), vomiting (46% vs 36%), constipation (43% vs 30%), upper respiratory infection (32% vs 12%), dysgeusia (26% vs 5%), and abdominal pain (26% vs 12%). Grade 3/4 reactions occurring at a ≥2% higher incidence with XALKORI vs chemotherapy were QT prolongation (2% vs 0%), and constipation (2% vs 0%). In patients treated with XALKORI vs chemotherapy, the following occurred: elevation of ALT (any grade [79% vs 33%] or Grade 3/4 [15% vs 2%]); elevation of AST (any grade [66% vs 28%] or Grade 3/4 [8% vs 1%]); neutropenia (any grade [52% vs 59%] or Grade 3/4 [11% vs 16%]); lymphopenia (any grade [48% vs 53%] or Grade 3/4 [7% vs 13%]); hypophosphatemia (any grade [32% vs 21%] or Grade 3/4 [10% vs 6%]). In patients treated with XALKORI vs chemotherapy, renal cysts occurred (5% vs 1%). Nausea (56%) decreased appetite (30%), fatigue (29%), and neuropathy (21%) also occurred in patients taking XALKORI.

Drug Interactions: Exercise caution with concomitant use of moderate CYP3A inhibitors. Avoid grapefruit or grapefruit juice which may increase plasma concentrations of crizotinib. Avoid concomitant use of strong CYP3A inducers and inhibitors. Avoid concomitant use of CYP3A substrates with narrow therapeutic range in patients taking XALKORI. If concomitant use of CYP3A substrates with narrow therapeutic range is required in patients taking XALKORI, dose reductions of the CYP3A substrates may be required due to adverse reactions.

Lactation: Because of the potential for adverse reactions in breastfed infants, advise females not to breast feed during treatment with XALKORI and for 45 days after the final dose.

Hepatic Impairment: XALKORI has not been studied in patients with hepatic impairment. As crizotinib is extensively metabolized in the liver, hepatic impairment is likely to increase plasma crizotinib concentrations. Use caution in patients with hepatic impairment.

Renal Impairment: Administer XALKORI at a starting dose of 250 mg taken orally once daily in patients with severe renal impairment (CLcr <30 mL/min) not requiring dialysis. No starting dose adjustment is needed for patients with mild and moderate renal impairment.

On November 25, 2015 Roche (SIX: RO, ROG; OTCQX: RHHBY) reported that the European Commission has approved CotellicTM (cobimetinib) for use in combination with Zelboraf (vemurafenib) for the treatment of adult patients with unresectable or metastatic melanoma with a BRAF V600 mutation (Press release, Hoffmann-La Roche , NOV 25, 2015, View Source [SID:1234508349]). The EU approval is based on data that showed Cotellic plus Zelboraf helped people with previously untreated BRAF V600 mutation-positive advanced melanoma live for more than a year without their disease worsening1.

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"There has been significant progress in the treatment of melanoma, with more medicines being approved in the past five years than in the previous 30," said Sandra Horning, M.D., Chief Medical Officer and Head of Global Product Development. "Together, Cotellic plus Zelboraf more strongly suppressed cancer growth than Zelboraf alone. This underscores the critical role of combination medicines in helping melanoma patients live longer without their disease worsening."

Today’s EU approval is based primarily on results of the Phase III coBRIM study, which showed that people with previously untreated BRAF V600 mutation-positive advanced melanoma who were being treated with the MEK inhibitor Cotellic in combination with Zelboraf lived a median of one year (12.3 months) without their disease worsening or death (progression-free survival; PFS) compared to 7.2 months with Zelboraf alone (hazard ratio [HR]=0.58; 95 percent confidence interval [CI] 0.46-0.72).1
The objective response rate (ORR) with the combination was 70 percent (16 percent complete response [CR], 54 percent partial response [PR]) compared to 50 percent (11 percent CR, 40 percent PR) in the Zelboraf arm.1 The safety profile of Cotellic plus Zelboraf was consistent with safety data previously reported. The most common adverse events in the combination arm were diarrhea, rash, nausea, fever, sun sensitivity, liver lab abnormalities, elevated creatine phosphokinase (CPK, an enzyme released by muscles) and vomiting.

Additional data were presented on November 21, 2015 at the Society for Melanoma Research congress demonstrating that the combination of Cotellic plus Zelboraf met its secondary endpoint of improving overall survival compared to Zelboraf alone. These data will be submitted to the European Medicines Agency for consideration and inclusion in the label. Cotellic in combination with Zelboraf is now approved in the EU and Switzerland for the treatment of people with BRAF V600 mutation-positive advanced melanoma. In the US, the combination is approved for the treatment of people with BRAF V600E or V600K mutation-positive advanced melanoma. Further country approvals are anticipated in 2016.

About the coBRIM study
CoBRIM is an international, randomised, double-blind, placebo-controlled Phase III study evaluating the safety and efficacy of 60 mg once daily of cobimetinib plus 960 mg twice daily of Zelboraf compared to 960 mg twice daily of Zelboraf alone. In the study, 495 patients with BRAF V600 mutation-positive unresectable locally advanced or metastatic melanoma (detected by the cobas 4800 BRAF Mutation Test) and previously untreated for advanced disease were randomised to receive Zelboraf every day on a 28-day cycle plus either cobimetinib or placebo on days 1-21. Treatment was continued until disease progression, unacceptable toxicity or withdrawal of consent. Investigator-assessed PFS is the primary endpoint. Secondary endpoints include PFS by independent review committee, objective response rate, overall survival, duration of response and other safety, pharmacokinetic and quality of life measures2.

About Cotellic plus Zelboraf
Cotellic and Zelboraf are prescription medicines used in combination to treat melanoma that has spread to other parts of the body or cannot be removed by surgery, and that has a certain type of abnormal "BRAF" gene. Found in approximately half of melanomas3, mutated BRAF causes abnormal signaling inside certain cancer cells leading to tumor growth4,5. Zelboraf is designed to inhibit some mutated forms of BRAF and Cotellic is designed to inhibit some forms of MEK. Both BRAF and MEK are proteins in a cell signaling pathway that help control cell growth and survival6. When used in combination, Cotellic and Zelboraf are thought to reduce cancer cell growth longer than with Zelboraf alone. A patient’s healthcare provider will perform a test to make sure Cotellic and Zelboraf are right for the patient. Cotellic and Zelboraf are not used to treat melanoma with a normal BRAF gene. It is not known if Cotellic and Zelboraf are safe and effective in children under 18 years of age.

Cotellic is also being investigated in combination with several investigational medicines, including an immunotherapy, in several tumour types such as non-small cell lung cancer and colorectal cancer. Cotellic was discovered by Exelixis Inc. and is being developed by Roche in collaboration with Exelixis.

About melanoma
Melanoma is less common, but more aggressive and deadlier than other forms of skin cancer.7,8 BRAF is mutated in approximately half of melanomas.3 When melanoma is diagnosed early, it is generally a curable disease,9,10 but most people with advanced melanoma have a poor prognosis.8More than 232,000 people worldwide are currently diagnosed with melanoma each year.11 In recent years, there have been significant advances in treatment for metastatic melanoma and people with the disease have more options. However, it continues to be a serious health issue with a high unmet need and a steadily increasing incidence over the past 30 years.12

On November 24, 2015 The U.S. Food and Drug Administration reported that it approved Portrazza (necitumumab) in combination with two forms of chemotherapy to treat patients with advanced (metastatic) squamous non-small cell lung cancer (NSCLC) who have not previously received medication specifically for treating their advanced lung cancer (Press release, , NOV 24, 2015, View Source [SID:1234508346]).
Lung cancer is the leading cause of cancer death in the United States, with an estimated 221,200 new diagnoses and 158,040 deaths in 2015. The most common type of lung cancer, non-small cell lung cancer, is further divided into two main types named for the kinds of cells found in the cancer – squamous cell and non-squamous cell (which includes adenocarcinoma).

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"Lung cancer tumors can be varied, so treatment options need to be tailored to the specific type of lung cancer in the patient," said Richard Pazdur, M.D., director of the Office of Hematology and Oncology Products in the FDA’s Center for Drug Evaluation and Research. "Today’s approval provides certain patients with squamous cell lung cancer a new option that may extend survival."

Portrazza is a monoclonal antibody that blocks activity of EGFR, a protein commonly found on squamous NSCLC tumors.

The safety and efficacy of Portrazza were evaluated in a multicenter, randomized, open-label clinical study of 1,093 participants with advanced squamous NSCLC who received the chemotherapies gemcitabine and cisplatin with or without Portrazza. Those taking Portrazza plus gemcitabine and cisplatin lived longer on average (11.5 months) compared to those only taking gemcitabine and cisplatin (9.9 months). Portrazza was not found to be an effective treatment in patients with non-squamous NSCLC.

The most common side effects of Portrazza are skin rash and magnesium deficiency (hypomagnesemia), which can cause muscular weakness, seizure, irregular heartbeats and can be fatal. Portrazza includes a boxed warning to alert health care providers of serious risks of treatment with Portrazza, including cardiac arrest and sudden death, as well as hypomagnesemia.

Portrazza is marketed by Eli Lilly and Company, based in Indianapolis, Indiana.