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Completed Phase 3 Interventional Results available

A Study of Pembrolizumab (MK-3475) With or Without Maintenance Olaparib in First-line Metastatic Squamous Non-small Cell Lung Cancer (NSCLC, MK-7339-008/KEYLYNK-008)

ClinicalTrials.gov ID: NCT03976362

Public ClinicalTrials.gov record NCT03976362. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 1, 2026, 5:09 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3 Study of Pembrolizumab in Combination With Carboplatin/Taxane (Paclitaxel or Nab-paclitaxel) Followed by Pembrolizumab With or Without Maintenance Olaparib in the First-line Treatment of Metastatic Squamous Non-small Cell Lung Cancer (NSCLC)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The current study will compare pembrolizumab (MK-3475) plus maintenance olaparib, vs. pembrolizumab plus maintenance olaparib placebo for the treatment of squamous NSCLC. The study's 2 primary hypotheses are: 1. Pembrolizumab plus maintenance olaparib is superior to pembrolizumab plus maintenance olaparib placebo with respect to progression-free survival (PFS) per RECIST 1.1 by blinded independent clinical review (BICR). 2. Pembrolizumab plus maintenance olaparib is superior to pembrolizumab plus maintenance olaparib placebo with respect to overall survival (OS). As of Amendment 07, there will be no further analyses for OS and patient-reported outcome assessments.

Study identification

NCT ID
NCT03976362
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Enrollment
851 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jun 27, 2019
Primary completion
Sep 20, 2023
Completion
Jan 29, 2026
Last update posted
Feb 24, 2026

2019 – 2026

United States locations

U.S. sites
18
U.S. states
14
U.S. cities
18
Facility City State ZIP Site status
Alabama Oncology Bruno Cancer Center ( Site 0001) Birmingham Alabama 35205
Disney Family Cancer Center ( Site 0005) Burbank California 91505
Boca Raton Regional Hospital ( Site 0018) Boca Raton Florida 33486
Mid-Florida Cancer Centers ( Site 0022) Orange City Florida 32763
H. Lee Moffitt Cancer Center and Research Institute ( Site 0024) Tampa Florida 33612
Columbus Regional Research Institute ( Site 0099) Columbus Georgia 31904
Mount Sinai Hospital Medical Center ( Site 0035) Chicago Illinois 60608
Oncology of Northshore ( Site 0036) Rolling Meadows Illinois 60008
Methodists Hospitals/Premier Oncology Hematology Associates ( Site 0039) Merrillville Indiana 46410
MedStar Franklin Square Medical Center ( Site 0044) Baltimore Maryland 21237
Barbara Ann Karmanos Cancer Institute ( Site 0046) Detroit Michigan 48201
Hattiesburg Clinic ( Site 0051) Hattiesburg Mississippi 39401
Frontier Oncology ( Site 0052) Billings Montana 59102
Bozeman Health Deaconness Cancer Center ( Site 0053) Bozeman Montana 59715
Waverly Hematology Oncology ( Site 0054) Cary North Carolina 27518
Thompson Cancer Survival Center ( Site 2812) Knoxville Tennessee 37804
Renovatio Clinical ( Site 0074) The Woodlands Texas 77380
Cancer Care Northwest ( Site 0083) Spokane Valley Washington 99216

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 160 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03976362, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 24, 2026 · Synced Sep 1, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03976362 live on ClinicalTrials.gov.

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