Merck?s KEYTRUDA? (pembrolizumab) Significantly Prolonged Recurrence-Free Survival (RFS) Compared to Placebo as Adjuvant Therapy for Patients With Stage II Resected High-Risk Melanoma in Phas
KENILWORTH, N.J.--(BUSINESS WIRE)-- Merck (NYSE: MRK), known as MSD outside the United States and Canada, today announced that the Phase 3 KEYNOTE-716 trial investigating KEYTRUDA, Merck?s anti-PD-1 therapy, met its primary endpoint of recurrence-free survival (RFS) for the adjuvant treatment of patients with surgically resected high-risk stage II melanoma. At an interim analysis, treatment with KEYTRUDA as a single agent showed a statistically significant and clinically meaningful improvement in RFS compared with placebo as adjuvant therapy for these patients. No new safety signals were observed. These results will be presented at an upcoming medical meeting. Based on these data, the U.S. Food and Drug Administration (FDA) has accepted a new supplemental Biologics License Application (sBLA) for KEYTRUDA for the adjuvant treatment of adult and pediatric (12 years and older) patients with stage IIB or IIC melanoma following complete resection. The FDA granted the application Priority Review and assigned a Prescription Drug User Fee Act (PDUFA), or target action, date of December 4, 2021.
?KEYNOTE-716 is the first Phase 3 study to evaluate adjuvant therapy solely for stage IIB and IIC melanoma ? an area with high unmet need,? said Dr. Jason Luke, director, Cancer Immunotherapeutics Center at UPMC Hillman Cancer Center. ?By moving immunotherapy with KEYTRUDA to earlier stages of melanoma, we have the opportunity to reduce the risk of recurrence for high-risk stage II patients compared to observation alone following complete resection.?
?At Merck, we are innovating to fight cancer earlier, and our data continues to build in this important area of research,? said Dr. Roy Baynes, senior vice president and head of global clinical development, chief medical officer, Merck Research Laboratories. ?Many patients with stage II melanoma have a high risk of their cancer returning after surgery. This is an important milestone for patients, and we look forward to sharing these results with the medical community as soon as possible. We thank the patients and investigators for their participation in this study.?
Merck is committed to delivering meaningful advances for patients with melanoma with KEYTRUDA and to continued research in skin cancers through a broad clinical development program. KEYTRUDA has been established as an important treatment option for the adjuvant treatment of patients with resected stage III melanoma and is approved in over 90 countries based on the results from EORTC1325/KEYNOTE-054. KEYTRUDA is also approved worldwide for the treatment of patients with unresectable or metastatic melanoma.
Merck has an expansive program investigating KEYTRUDA in early disease states, with approximately 20 registrational studies ongoing. KEYNOTE-716 adds to previous results seen in earlier stages of disease in four tumor types (melanoma, renal cell carcinoma, triple-negative breast cancer and non-muscle invasive bladder cancer).
About KEYNOTE-716
KEYNOTE-716 is a randomized, two-part, Phase 3 trial (ClinicalTrials.gov,?NCT03553836) evaluating KEYTRUDA for the adjuvant treatment of patients with completely resected high-risk stage II melanoma. The study enrolled 954 patients ages 12 years and older. The primary endpoint is RFS, and the secondary endpoints include distant metastasis-free survival, overall survival, safety and quality of life.
In Part 1 of the study, which was double-blind, adult patients were randomized to receive KEYTRUDA (200 mg intravenously [IV]) or placebo (saline by IV) every three weeks for up to 17 cycles (approximately one year); pediatric patients were randomized to receive KEYTRUDA (2 mg/kg [200 mg maximum] by IV) or placebo every three weeks for up to 17 cycles (approximately one year).
In Part 2 of the study, which was open-label, eligible adult and pediatric patients received up to 35 additional cycles (approximately two years) of KEYTRUDA. Eligibility for Part 2 included patients who recurred after receiving placebo or completed 17 cycles of KEYTRUDA (approximately one year); patients on KEYTRUDA must not have experienced disease recurrence within six months of completing treatment.
About Melanoma
Melanoma, the most serious form of skin cancer, is characterized by the uncontrolled growth of pigment-producing cells. The rates of melanoma have been rising over the past few decades, with nearly 325,000 new cases diagnosed worldwide in 2020. In the U.S., skin cancer is one of the most common types of cancer diagnosed, and melanoma accounts for a large majority of skin cancer deaths. It is estimated that in 2021, there will be more than 106,000 new cases of melanoma diagnosed and more than 7,000 deaths resulting from the disease in the U.S.
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 1,500 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.
Melanoma
KEYTRUDA is indicated for the treatment of patients with unresectable or metastatic melanoma.
KEYTRUDA is indicated for the adjuvant treatment of patients with melanoma with involvement of lymph node(s) following complete resection.
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.
- 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.