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
COSTAR Lung
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)
2 other identifiers
interventional
758
24 countries
163
Brief Summary
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Dec 2020
Longer than P75 for phase_3
163 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 30, 2020
CompletedFirst Posted
Study publicly available on registry
December 7, 2020
CompletedStudy Start
First participant enrolled
December 8, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 5, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
March 30, 2027
ExpectedSeptember 26, 2025
September 1, 2025
4.5 years
November 30, 2020
September 25, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Overall survival (OS) in participants receiving cobolimab + dostarlimab + docetaxel relative to participants receiving docetaxel alone
OS is defined as survival from the date of randomization to the date of death by any cause.
Up to approximately 52 months
OS in participants receiving dostarlimab + docetaxel relative to participants receiving docetaxel alone
OS is defined as survival from the date of randomization to the date of death by any cause.
Up to approximately 52 months
Secondary Outcomes (16)
OS in participants receiving cobolimab + dostarlimab + docetaxel relative to participants receiving dostarlimab + docetaxel
Up to approximately 52 months
Objective response rate (ORR)
Up to approximately 52 months
Progression free survival (PFS)
Up to approximately 52 months
Duration of response (DOR)
Up to approximately 52 months
Time to deterioration (TTD)
Up to approximately 52 months
- +11 more secondary outcomes
Study Arms (3)
Participants receiving cobolimab+ dostarlimab+ docetaxel
EXPERIMENTALParticipants receiving dostarlimab+ docetaxel
EXPERIMENTALParticipants receiving docetaxel
ACTIVE COMPARATORInterventions
Cobolimab will be administered.
Dostarlimab will be administered.
Docetaxel will be administered.
Eligibility Criteria
You may qualify if:
- Participant has histologically or cytologically proven advanced or metastatic NSCLC and only squamous or non-squamous cell carcinoma.
- Participant has received no more than 2 prior lines of therapy for advanced or metastatic disease, which must only include a platinum based (e.g., cisplatin, carboplatin) doublet chemotherapy regimen and an anti-PD-1 or an anti-PD-(L)1 antibody.
- Participant has measurable disease.
- Participant has documented radiographic disease progression on prior platinum based chemotherapy and on or after prior anti-PD-(L)1 therapy.
- Participant agrees to submit an archival formalin-fixed paraffin-embedded (FFPE) tumor tissue specimen that was collected on or after diagnosis of metastatic disease. If archival tissue is not available, the participant must undergo biopsy prior to study entry.
- Participant has an ECOG performance status score of 0 or 1.
- Participant has a life expectancy of at least 3 months.
- Participant has adequate Baseline organ function.
- Participant has recovered from any prior treatment related toxicities.
- Participant agrees to use contraception.
You may not qualify if:
- Participant has been previously treated with an anti-PD-\[L\]1 or anti-programmed death-ligand 2 (anti-PD-\[L\]2) agent that resulted in permanent discontinuation due to an AE.
- Participant has been previously treated with an anti-T cell immunoglobulin and mucin domain containing 3 (anti-TIM-3) or anti-cytotoxic T lymphocyte associated protein 4 (CTLA 4) agent or docetaxel.
- Participant has a documented sensitizing epidermal growth factor receptor (EGFR), anaplastic lymphoma kinase (ALK), or c-ros oncogene 1 (ROS-1) mutation. Participants whose tumors have not been tested for these driver mutations and therefore who have unknown driver mutation status are not eligible. Participants with squamous histology do not need to be tested for these driver mutations.
- Participant had radiological or clinical disease progression (i.e., worsening performance status, clinical symptoms, and laboratory data) \<=8 weeks after initiation of prior anti-programmed cell death protein 1 (anti-PD-1) or anti-PD-L1 antibody. The clinical disease progression should have been confirmed by a subsequent radiological scan.
- Participant has received radiation to the lung that is \>30 gray (Gy) within 6 months prior to the first dose of study treatment.
- Participant has completed palliative radiotherapy within 7 days prior to the first dose of study treatment.
- Participant is ineligible if any of the following hepatic characteristics are present: a. Alanine aminotransferase (ALT) \>2.5 times upper limit normal (ULN) b. ALT and/or aspartate aminotransferase (AST) \>1.5 times ULN concomitant with alkaline phosphatase (ALP) \>2.5 times ULN; c. Bilirubin \>1 times ULN; d. Current active liver or biliary disease (with the exception of Gilbert's syndrome or asymptomatic gallstones, liver metastases, or otherwise stable chronic liver disease per the Investigator's assessment).
- Participant has known new or progressive brain metastases and/or leptomeningeal metastases. Participants who have received prior therapy for their brain metastases and have radiographically stable central nervous system disease may participate, provided they are neurologically stable for at least 4 weeks before study entry and are off corticosteroids within 3 days prior to the first dose of study treatment.
- Participant has tested positive for the following at Screening or within 3 months before the first dose of study treatment: a. Presence of hepatitis B surface antigen. b. Presence of hepatitis C antibody in the absence of a ribonucleic acid (RNA) test for hepatitis C virus. If a confirmatory RNA test is available, a positive test result will exclude a participant, while a negative test result (indicating absence of active infection) will allow the participant to enter into the study.
- Participant has known human immunodeficiency virus (HIV) (positive for HIV 1 or HIV 2 antibodies).
- Participant has active autoimmune disease that required systemic treatment in the past 2 years, is immunocompromised in the opinion of the Investigator, or is receiving systemic immunosuppressive treatment.
- Participant has symptomatic ascites or pleural effusion. A participant who is clinically stable following treatment of these conditions (including therapeutic thoracentesis or paracentesis) is eligible.
- Participant has current interstitial lung disease, current pneumonitis, or a history of pneumonitis that required the use of glucocorticoids to assist with management.
- Participant has pre-existing peripheral neuropathy that is Grade \>=2 by National Cancer Institute-Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 5.0 criteria.
- Participant has received a live vaccine within 30 days of the first dose of study treatment. Seasonal flu vaccines that do not contain live virus and Coronavirus Disease 2019 (COVID-19) vaccines.
- +1 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- GlaxoSmithKlinelead
Study Sites (163)
GSK Investigational Site
Fountain Valley, California, 92708, United States
GSK Investigational Site
Walnut Creek, California, 94596, United States
GSK Investigational Site
Norwich, Connecticut, 06360, United States
GSK Investigational Site
Washington D.C., District of Columbia, 20422, United States
GSK Investigational Site
Honolulu, Hawaii, 96819, United States
GSK Investigational Site
Iowa City, Iowa, 52242, United States
GSK Investigational Site
Edgewood, Kentucky, 41017, United States
GSK Investigational Site
Las Vegas, Nevada, 89144, United States
GSK Investigational Site
Mineola, New York, 11501, United States
GSK Investigational Site
New York, New York, 10016, United States
GSK Investigational Site
White Plains, New York, 10601, United States
GSK Investigational Site
Pittsburgh, Pennsylvania, 15224, United States
GSK Investigational Site
Pittsburgh, Pennsylvania, 15232, United States
GSK Investigational Site
Sioux Falls, South Dakota, 57105, United States
GSK Investigational Site
Houston, Texas, 77030, United States
GSK Investigational Site
Fredericksburg, Virginia, 22408, United States
GSK Investigational Site
Tacoma, Washington, 98405, United States
GSK Investigational Site
Buenos Aires, C1426ABP, Argentina
GSK Investigational Site
Cipoletti Rio Negro, R8324CVE, Argentina
GSK Investigational Site
Ciudad Autonoma de Buenos Aire, 1425, Argentina
GSK Investigational Site
Florida, 1602, Argentina
GSK Investigational Site
La Rioja, F5300COE, Argentina
GSK Investigational Site
Pergamino, B2700CPM, Argentina
GSK Investigational Site
Rosario, S2000DBS, Argentina
GSK Investigational Site
Viedma, R8500ACE, Argentina
GSK Investigational Site
South Brisbane, Queensland, 4101, Australia
GSK Investigational Site
Ashford, South Australia, 5037, Australia
GSK Investigational Site
Hobart, Tasmania, 7000, Australia
GSK Investigational Site
Ballarat, Victoria, 3350, Australia
GSK Investigational Site
Melbourne, Victoria, 3004, Australia
GSK Investigational Site
Mount Waverley, Victoria, 3350, Australia
GSK Investigational Site
Aalst, 9300, Belgium
GSK Investigational Site
Hasselt, 3500, Belgium
GSK Investigational Site
Kortrijk, 8500, Belgium
GSK Investigational Site
Blumenau, 89010340, Brazil
GSK Investigational Site
Fortaleza, 60336-232, Brazil
GSK Investigational Site
Porto Alegre, 90610000, Brazil
GSK Investigational Site
Rio de Janeiro, 22061080, Brazil
GSK Investigational Site
Rio de Janeiro, 22250-905, Brazil
GSK Investigational Site
Salvador, 40170-110, Brazil
GSK Investigational Site
São Paulo, 04014-002, Brazil
GSK Investigational Site
Greater Sudbury, Ontario, P3E 5J1, Canada
GSK Investigational Site
Kingston, Ontario, K7L 2V7, Canada
GSK Investigational Site
Oshawa, Ontario, L1G 2B9, Canada
GSK Investigational Site
Greenfield Park, Quebec, J4V 2H1, Canada
GSK Investigational Site
Montreal, Quebec, H3T 1E2, Canada
GSK Investigational Site
Helsinki, 00180, Finland
GSK Investigational Site
Kuopio, 70210, Finland
GSK Investigational Site
Créteil, 94010, France
GSK Investigational Site
Grenoble, 38043, France
GSK Investigational Site
Marseille, 13009, France
GSK Investigational Site
Nice, 06189, France
GSK Investigational Site
Quimper, 29107, France
GSK Investigational Site
Rennes, 35033, France
GSK Investigational Site
Tours, 37044, France
GSK Investigational Site
Augsburg, 86156, Germany
GSK Investigational Site
Bad Berka, 99437, Germany
GSK Investigational Site
Berlin, 12200, Germany
GSK Investigational Site
Bonn, 53113, Germany
GSK Investigational Site
Cologne, 51109, Germany
GSK Investigational Site
Dresden, 01307, Germany
GSK Investigational Site
Essen, 45147, Germany
GSK Investigational Site
Frankfurt, 60488, Germany
GSK Investigational Site
Frankfurt, 60590, Germany
GSK Investigational Site
Halle, 06120, Germany
GSK Investigational Site
Heidelberg, 69126, Germany
GSK Investigational Site
Karlsruhe, 76137, Germany
GSK Investigational Site
München, 80336, Germany
GSK Investigational Site
München, 81925, Germany
GSK Investigational Site
Oldenburg, 26121, Germany
GSK Investigational Site
Athens, 115 27, Greece
GSK Investigational Site
Athens, 11526, Greece
GSK Investigational Site
Athens, 11528, Greece
GSK Investigational Site
Athens, 12462, Greece
GSK Investigational Site
Larissa, 41100, Greece
GSK Investigational Site
Pylaia Thessaloniki, 570 01, Greece
GSK Investigational Site
Rio Patras, 26504, Greece
GSK Investigational Site
Thessaloniki, 55236, Greece
GSK Investigational Site
Thessaloniki, 57010, Greece
GSK Investigational Site
Ancona, 60126, Italy
GSK Investigational Site
Avellino, 83100, Italy
GSK Investigational Site
Florence, 50134, Italy
GSK Investigational Site
Milan, 20132, Italy
GSK Investigational Site
Milan, 20133, Italy
GSK Investigational Site
Monza, 20900, Italy
GSK Investigational Site
Napoli, 80131, Italy
GSK Investigational Site
Orbassano to, 10043, Italy
GSK Investigational Site
Perugia, 06156, Italy
GSK Investigational Site
Siena, 53100, Italy
GSK Investigational Site
Kyoto, 612-8555, Japan
GSK Investigational Site
Miyagi, 981-1293, Japan
GSK Investigational Site
Osaka, 591-8555, Japan
GSK Investigational Site
Yamaguchi, 755-0241, Japan
GSK Investigational Site
Guadalajara, 44280, Mexico
GSK Investigational Site
Mexico City, 03100, Mexico
GSK Investigational Site
Mexico City, 03810, Mexico
GSK Investigational Site
Mexico City, 06700, Mexico
GSK Investigational Site
Mexico City, CP 14080, Mexico
GSK Investigational Site
Monterrey, 64460, Mexico
GSK Investigational Site
Puebla Puebla, 72560, Mexico
GSK Investigational Site
Amersfoort, 3813 TZ, Netherlands
GSK Investigational Site
Enschede, 7512 KZ, Netherlands
GSK Investigational Site
Groningen, 9713 GZ, Netherlands
GSK Investigational Site
Harderwijk, 3844 DG, Netherlands
GSK Investigational Site
Nijmegen, 6525 GA, Netherlands
GSK Investigational Site
Utrecht, 3543 AZ, Netherlands
GSK Investigational Site
Zwolle, 8025 AB, Netherlands
GSK Investigational Site
Bydgoszcz, 85-796, Poland
GSK Investigational Site
Gdynia, 81-519, Poland
GSK Investigational Site
Lodz, 90-338, Poland
GSK Investigational Site
Olsztyn, 10-357, Poland
GSK Investigational Site
Piła, 64-920, Poland
GSK Investigational Site
Poznan, 60-693, Poland
GSK Investigational Site
Bucharest, 013812, Romania
GSK Investigational Site
Craiova, 200347, Romania
GSK Investigational Site
Craiova Dolj, 200385, Romania
GSK Investigational Site
Otopeni, 075100, Romania
GSK Investigational Site
Timișoara, 300239, Romania
GSK Investigational Site
Chelyabinsk, 454048, Russia
GSK Investigational Site
Moscow Region, 143423, Russia
GSK Investigational Site
Pushkin, 196603, Russia
GSK Investigational Site
Saint Petersburg, 197022, Russia
GSK Investigational Site
Cheongju Chungcheongbuk-do, 28644, South Korea
GSK Investigational Site
Daegu, 42601, South Korea
GSK Investigational Site
Gyeonggi-do, 10408, South Korea
GSK Investigational Site
Pusan, 49241, South Korea
GSK Investigational Site
Seongnam-si Gyeonggi-do, 13620, South Korea
GSK Investigational Site
Seoul, 03722, South Korea
GSK Investigational Site
Seoul, 05505, South Korea
GSK Investigational Site
Seoul, 06351, South Korea
GSK Investigational Site
Seoul, 08308, South Korea
GSK Investigational Site
Suwon Kyunggi-do, 443-721, South Korea
GSK Investigational Site
A Coruña, 15006, Spain
GSK Investigational Site
Badalona, 08916, Spain
GSK Investigational Site
Barcelona, 08035, Spain
GSK Investigational Site
Barcelona, 08036, Spain
GSK Investigational Site
Burgos, 09006, Spain
GSK Investigational Site
Córdoba, 140044, Spain
GSK Investigational Site
Las Palmas de Gran Canar, 35016, Spain
GSK Investigational Site
Madrid, 28007, Spain
GSK Investigational Site
Madrid, 28034, Spain
GSK Investigational Site
Madrid, 28041, Spain
GSK Investigational Site
Madrid, 28046, Spain
GSK Investigational Site
Madrid, 28050, Spain
GSK Investigational Site
Madrid, 28222, Spain
GSK Investigational Site
Málaga, 29010, Spain
GSK Investigational Site
Valencia, 46026, Spain
GSK Investigational Site
Gävle, SE-801 87, Sweden
GSK Investigational Site
Stockholm, 171 64, Sweden
GSK Investigational Site
Uppsala, SE-751 85, Sweden
GSK Investigational Site
Taipei, 11217, Taiwan
GSK Investigational Site
Dusit, 10300, Thailand
GSK Investigational Site
Kho Hong Hat Yai, 90110, Thailand
GSK Investigational Site
Khon Kaen, 40002, Thailand
GSK Investigational Site
Pathum Thani, 12120, Thailand
GSK Investigational Site
Adana, 1120, Turkey (Türkiye)
GSK Investigational Site
Antalya, 07020, Turkey (Türkiye)
GSK Investigational Site
Izmir, 35600, Turkey (Türkiye)
GSK Investigational Site
Cardiff, CF14 2TL, United Kingdom
GSK Investigational Site
Edinburgh, EH4 2XU, United Kingdom
GSK Investigational Site
London, SE1 9RT, United Kingdom
GSK Investigational Site
London, W1G 6AD, United Kingdom
GSK Investigational Site
Manchester, M20 4BX, United Kingdom
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
GSK Clinical Trials
GlaxoSmithKline
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 30, 2020
First Posted
December 7, 2020
Study Start
December 8, 2020
Primary Completion
June 5, 2025
Study Completion (Estimated)
March 30, 2027
Last Updated
September 26, 2025
Record last verified: 2025-09
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR
- Time Frame
- IPD will be made available within 6 months of publishing the results of the primary endpoints, key secondary endpoints and safety data of the study.
- Access Criteria
- Access is provided after a research proposal is submitted and has received approval from the Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months but an extension can be granted, when justified, for up to another 12 months.
IPD for this study will be made available via the Clinical Study Data Request site.