CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 128 enrolled / 128 target
Drug / intervention
Pembrolizumab +5 morebiological
Likely dose
200 mgfrom 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/NCT04165096
NCT04165096Phase 2CompletedMonitor (1.7/mo)Completion was 14mo ago

KEYMAKER-U01 Substudy 3: A Phase 2, Umbrella Study With Rolling Arms of Investigational Agents in Combination With Pembrolizumab in Patients With Advanced Non-small Cell Lung Cancer (NSCLC) Previously Treated With Anti-PD-(L)1 Therapy

Merck Sharp & Dohme LLC·interventional·Posted Nov 15, 2019·Updated Jun 26, 2026

In Brief

A Phase 2 clinical trial evaluating Pembrolizumab, Boserolimab, and 4 other interventions for Carcinoma, Non-Small-Cell Lung. Completed, enrolled 128 participants across 39 sites in 7 countries.

Signals

Enrolling slower than its timeline implies

Detailed Summary

The purpose of this study is to assess the efficacy and safety of pembrolizumab (MK-3475) in combination with boserolimab (MK-5890), MK-4830, MK-0482 in participants with advanced squamous or non-squamous NSCLC that have been previously treated with anti-PD-L1 therapy. This study is one of three pembrolizumab substudies being conducted under one pembrolizumab umbrella master protocol (MK-3475-U01/KEYMAKER-U01).

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesHungary, Israel, Italy, Poland, South Korea, Spain, United States
Collaborators--

Timeline

Phase 2CompletedFinished
2020202120222023202420252026
First PostedNov 15, 2019
Enrollment StartJan 21, 2020
Primary CompletionApr 30, 2025
Study CompletionMay 28, 2025
TodayJul 2, 2026
Enrollment to primary: 5.3 yearsPosted 6.6 years ago

Arms & Interventions

Pembrolizumab + Boserolimabexperimental

On Day 1 of each 3-week cycle, participants receive pembrolizumab 200 mg intravenously (IV) PLUS boserolimab IV for a maximum of 35 cycles (approximately 2 years). All participants are premedicated 1.5 hours (±30 minutes) before infusion of boserolimab with 50 mg oral (PO) diphenhydramine (or equivalent dose of antihistamine) and 500-1000 mg of acetaminophen PO (or equivalent dose of analgesic).

Biological: PembrolizumabBiological: BoserolimabDrug: diphenhydramineDrug: acetaminophen
Pembrolizumab + MK-4830experimental

On Day 1 of each 3-week cycle, participants receive pembrolizumab 200 mg intravenously (IV) PLUS MK-4830 IV for a maximum of 35 cycles (approximately 2 years).

Biological: PembrolizumabBiological: MK-4830
Pembrolizumab + MK-0482experimental

On Day 1 of each 3-week cycle, participants receive pembrolizumab 200 mg intravenously (IV) PLUS MK-0482 IV for a maximum of 35 cycles (approximately 2 years).

Biological: PembrolizumabBiological: MK-0482

Interventions

Pembrolizumabbiological

IV infusion

Boserolimabbiological

IV infusion

MK-4830biological

IV infusion

diphenhydraminedrug

PO

acetaminophendrug

PO

MK-0482biological

IV infusion