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Active, not recruiting Phase 2Phase 3 Interventional Results available

Efficacy Comparison of Cobolimab + Dostarlimab + Docetaxel to Dostarlimab + Docetaxel to Docetaxel Alone in Participants With Advanced Non-small Cell Lung Cancer Who Have Progressed on Prior Anti-PD-(L)1 Therapy and Chemotherapy

ClinicalTrials.gov ID: NCT04655976

Public ClinicalTrials.gov record NCT04655976. 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 Oct 19, 2026, 11:03 AM 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 Randomized, Open Label Phase 2/3 Study Comparing Cobolimab + Dostarlimab + Docetaxel To Dostarlimab + Docetaxel To Docetaxel Alone In Participants With Advanced Non-small Cell Lung Cancer Who Have Progressed On Prior Anti-PD-(L)1 Therapy And Chemotherapy (COSTAR Lung)

Brief summary

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

This is a multi-center, parallel group treatment, Phase 2/3 open label study evaluating cobolimab in combination with dostarlimab and docetaxel in participants with advanced non-small cell Lung Cancer (NSCLC) who have progressed on prior anti-PD-(L)1 therapy and chemotherapy.

Study identification

NCT ID
NCT04655976
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 2, Phase 3
Lead sponsor
GlaxoSmithKline
Industry
Enrollment
758 participants

Conditions and interventions

Interventions

Biological · Drug

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
Dec 8, 2020 (Actual)
Primary completion
Jun 5, 2025 (Actual)
Completion
Mar 30, 2027 (Estimated)
Last update posted
Jul 1, 2026

2020 – 2027

United States locations

U.S. sites
17
U.S. states
13
U.S. cities
16
Facility City State ZIP Site status
GSK Investigational Site Fountain Valley California 92708 —
GSK Investigational Site Walnut Creek California 94596 —
GSK Investigational Site Norwich Connecticut 06360 —
GSK Investigational Site Washington D.C. District of Columbia 20422 —
GSK Investigational Site Honolulu Hawaii 96819 —
GSK Investigational Site Iowa City Iowa 52242 —
GSK Investigational Site Edgewood Kentucky 41017 —
GSK Investigational Site Las Vegas Nevada 89144 —
GSK Investigational Site Mineola New York 11501 —
GSK Investigational Site New York New York 10016 —
GSK Investigational Site White Plains New York 10601 —
GSK Investigational Site Pittsburgh Pennsylvania 15224 —
GSK Investigational Site Pittsburgh Pennsylvania 15232 —
GSK Investigational Site Sioux Falls South Dakota 57105 —
GSK Investigational Site Houston Texas 77030 —
GSK Investigational Site Fredericksburg Virginia 22408 —
GSK Investigational Site Tacoma Washington 98405 —

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 146 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04655976, 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 Jul 1, 2026 · Synced Oct 19, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04655976 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →