CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 1,264 enrolled / 1,264 target
Drug / intervention
Pembrolizumab/Vibostolimab +1 morebiological
Likely dose
Pembrolizumab/Vibostolimab 200mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04738487
NCT04738487Phase 3CompletedMonitor (20.1/mo)Completion was 21mo ago

A Phase 3, Multicenter, Randomized, Double-Blind Study of MK-7684 With Pembrolizumab as a Coformulation (MK-7684A) Versus Pembrolizumab Monotherapy as First Line Treatment for Participants With PD-L1 Positive Metastatic Non-Small Cell Lung Cancer

Merck Sharp & Dohme LLC·interventional·Posted Feb 4, 2021·Updated Jun 26, 2026

In Brief

A Phase 3 clinical trial evaluating Pembrolizumab/Vibostolimab and Pembrolizumab for Lung Neoplasms and Non-Small-Cell Lung Carcinoma. Completed, enrolled 1,264 participants across 188 sites in 23 countries.

Signals

Enrolling slower than its timeline implies

Detailed Summary

Researchers are looking for new ways to treat people with metastatic non-small cell lung cancer (NSCLC) that is PD-L1 positive. * Metastatic means cancer that has spread to other parts of the body. * PD-L1 positive means that PD-L1 is found on the cancer cells. PD-L1 is a protein that can help the cancer hide from the body's immune system. The goal of this study is to learn if people who receive vibostolimab and pembrolizumab live longer overall and without the cancer getting worse than people who receive pembrolizumab alone.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesBrazil, Canada, Chile, China, Dominican Republic, Guatemala, Hong Kong, Hungary, India, Japan, Malaysia, Mexico, Peru, Philippines, Romania, Russia, South Africa, South Korea, Thailand, Turkey (Türkiye), Ukraine, United States, Vietnam
Collaborators--

Timeline

Phase 3CompletedFinished
202120222023202420252026
First PostedFeb 4, 2021
Enrollment StartApr 7, 2021
Primary CompletionSep 5, 2024
Study CompletionJan 27, 2026
TodayJul 2, 2026
Enrollment to primary: 3.4 yearsPosted 5.4 years ago

Arms & Interventions

Pembrolizumab/Vibostolimabexperimental

Participants received 200 mg pembrolizumab / 200 mg vibostolimab as a coformulation (MK-7684A) by intravenous (IV) infusion every 3 weeks (Q3W) for up to 35 administrations, until centrally verified disease progression, or until a protocol specified discontinuation criterion was met. Per investigator's discretion, eligible participants with stable disease, or partial/complete response who received a first course treatment may have received a second course of treatment based on original randomization assignment for up to 17 cycles (up to \~1 year).

Biological: Pembrolizumab/Vibostolimab
Pembrolizumabactive_comparator

Participants received 200 mg pembrolizumab by IV infusion Q3W for up to 35 administrations, until centrally verified disease progression, or until a protocol-specified discontinuation criterion was met. Per investigator's discretion, eligible participants with stable disease, or partial/complete response who received a first course treatment may have received second course of treatment based on original randomization assignment for up to 17 cycles (up to \~1 year).

Biological: Pembrolizumab

Interventions

Pembrolizumab/Vibostolimabbiological

Coformulation of pembrolizumab (MK-3475) 200mg and vibostolimab (MK-7684) 200mg. Participants receive the coformulation by intravenous (IV) infusion every 3 weeks (Q3W) for up to 35 administrations (up to \~2 years).

Pembrolizumabbiological

Participants receive 200 mg of pembrolizumab by intravenous (IV) infusion every 3 weeks (Q3W) for up to 35 administrations (up to \~2 years).