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Cobolimab

Phase 2

Lung Cancer, Non-Small Cell | Monoclonal antibody | Oncology |GSK plc|Trials Updated: Jul 1, 2026

Cobolimab development status

Highest phase Phase 2
Registered trials 4 across 1 sponsor since Mar 2016

Cobolimab target and mechanism

Molecular targetHAVCR2
Target classInhibitor
ModalityMonoclonal antibody

Also known as TSR-022

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMC
Total Trials3
Total Enrollment1,304

FDA Designations

No designations recorded

Cobolimab clinical trials

Cobolimab · 3 trials · 14 indications

Phase 2 1Phase 1 2
NCT04655976Efficacy 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 ChemotherapyLung Cancer, Non-Small Cell
ACTIVE NOT_RECRUITING758 Analytics
PHASE2ACTIVE NOT_RECRUITING
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
Lung Cancer, Non-Small CellUnlock trial analytics

Study Endpoints

Primary Endpoints

Overall Survival (OS) (Arm A Versus Arm C)
Up to approximately 234 weeks

OS is defined as the time from the date of randomization to the date of death due to any cause.

Overall Survival (OS) (Arm B Versus Arm C)
Up to approximately 234 weeks

OS is defined as the time from the date of randomization to the date of death due to any cause.

Part 1- Number of participants with Dose Limiting Toxicities (DLTs)
Up to 42 days
Part 1- Number of participants with treatment-emergent adverse events (TEAEs), serious adverse events (SAEs), immune-mediated adverse events (imAEs) and adverse events (AEs) leading to discontinuation occurring during the study
Up to approximately 46 months
Part 1- Serum concentration of Cobolimab
1±0.5 hours (h) post-dose on Cycle 1 Day 1; 168±12 h post-dose Cycle 1Day 8; Pre-dose and 1±0.5 h post-dose on Cycle 2 Day 1; Cycle 4 Day 1 and Cycle 6 Day 1(Each cycle is of 21 days)
Part 1- Serum concentration of Dostarlimab
1±0.5 h post start of cobolimab infusion on Cycle 1 Day 1; Pre-dose on Cycle 2 Day 1; Cycle 4 Day 1 and Cycle 6 Day 1(Each cycle is of 21 days)
Part 1- Recommended Phase 2 Dose (RP2D) of Cobolimab and Dostarlimab combination
Up to approximately 12 months
Part 2- Confirmed Objective Response Rate (ORR)
Up to approximately 46 months

Confirmed ORR is defined as the proportion of participants who have achieved confirmed complete response (CR) or confirmed partial response (PR), evaluated using disease-specific tumor assessment criteria based on Investigator assessment

Part 2- Number of participants with TEAEs, SAEs, imAEs, TEAEs leading to death and AEs leading to discontinuation
Up to approximately 46 months
Part 2-Number of participants with changes in laboratory parameters, vital signs and cardiac parameters
Up to approximately 46 months
Part 1 (a): Number of participants achieving dose limiting toxicity (DLTs)
Up to 28 days
Part 1 (b,c,d): Number of participants achieving dose limiting toxicity (DLTs)
Up to 42 days
Part 1 (f,g,h): Number of participants achieving dose limiting toxicity (DLTs)
Up to 21 days
Part 1: Number of participants with adverse events (AEs), serious adverse events (SAEs), AEs leading to discontinuation, treatment emergent adverse events (TEAEs), TEAEs leading to death and immune-related adverse events (irAEs)
Up to 2 years
Part 1: Number of participants with clinically significant changes in laboratory parameters, vital signs, electrocardiogram (ECG) findings, Eastern Cooperative Oncology Group (ECOG) status, physical examination and use of concomitant medications
Up to 2 years
Part 1 (e) and Part 2: Overall Response Rate (ORR) by Response Evaluation Criteria in Solid Tumors (RECIST) version (v)1.1
Up to 2 years

Secondary Endpoints

Overall Survival (OS) (Arm A Versus Arm B)
Up to approximately 234 weeks
Overall Response Rate (ORR)
Up to approximately 234 weeks
Progression Free Survival (PFS)
Up to approximately 234 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Participants receiving cobolimab+ dostarlimab+ docetaxelEXPERIMENTAL -
Participants receiving dostarlimab+ docetaxelEXPERIMENTAL -
Participants receiving docetaxelACTIVE_COMPARATOR -
Part 1- Dose determinationEXPERIMENTAL -
Part 2- Dose expansionEXPERIMENTAL -
Part 1a: TSR-022 monotherapyEXPERIMENTAL -
Part 1b: TSR-022 in combination with nivolumabEXPERIMENTAL -
Part 1c: TSR-022 in combination with TSR-042EXPERIMENTAL -
Part 1d: TSR-022 in combination with TSR-042 and TSR-033EXPERIMENTAL -
Part 1e: TSR-022 with TSR-042 (not previously treated with anti-programmed death ligand [PD-{L}]1)EXPERIMENTAL -
Part 1f: TSR-022 in combination with TSR-042 and DocetaxelEXPERIMENTAL -
Part 1g: TSR-022 in combination with TSR-042, pemetrexed, and cisplatinEXPERIMENTAL -
Part 1h: TSR-022 in combination with TSR-042, pemetrexed, and carboplatinEXPERIMENTAL -
Part 2: Cohort A Melanoma-TSR-022 as monotherapyEXPERIMENTAL -
Part 2: Cohort A Melanoma-TSR-022 with TSR-042EXPERIMENTAL -
Part 2:Cohort B Non-small cell lung cancer-TSR-022-monotherapyEXPERIMENTAL -
Part 2:Cohort B Non-small cell lung cancer-TSR-022 with TSR-042EXPERIMENTAL -
Part 2:Cohort C Colorectal cancer-TSR-022 as monotherapyEXPERIMENTAL -
Part 2:Cohort C Colorectal cancer-TSR-022 with TSR-042EXPERIMENTAL -
Part 2: Cohort D-TIM-3 selected non-small cell lung cancer (NSCLC)-TSR-022 with TSR-042EXPERIMENTAL -
Part 2: Cohort E-Non-small cell lung cancer-TSR-022 with docetaxelEXPERIMENTAL -
Part 2: Cohort F- Hepatocellular carcinoma (HCC)-TSR-022 with TSR-042EXPERIMENTAL -

Interventions

NameTypeDescription
CobolimabBIOLOGICALCobolimab will be administered.
DostarlimabBIOLOGICALDostarlimab will be administered.
DocetaxelDRUGDocetaxel will be administered.
TSR-022DRUGTSR-022 will be administered.
NivolumabDRUGNivolumab will be administered.
TSR-042DRUGTSR-042 will be administered.
TSR-033DRUGTSR-033 will be administered.
PemetrexedDRUGPemetrexed will be administered.
CisplatinDRUGCisplatin will be administered.
CarboplatinDRUGCarboplatin will be administered.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites163

Inclusion Criteria: * 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 (...

Countries:United StatesArgentinaAustraliaBelgiumBrazilCanadaFinlandFranceGermanyGreeceItalyJapanMexicoNetherlandsPolandRomaniaRussiaSouth KoreaSpainSwedenTaiwanThailandTurkey (Türkiye)United KingdomCzechiaDenmark
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Frequently asked questions about Cobolimab

What is Cobolimab used for?

Cobolimab is an investigational monoclonal antibody being studied in oncology for advanced solid tumors. Its clinical development covers non-small cell lung cancer that has progressed on prior anti-PD-(L)1 therapy and chemotherapy, melanoma, and other neoplasms. It is also being evaluated in pediatric and young adult patients with cancers including melanoma, Hodgkin lymphoma, gliomas, and osteosarcoma.

What does Cobolimab target?

Cobolimab targets HAVCR2, also known as TIM-3, and acts as an inhibitor of this target. By binding HAVCR2, the monoclonal antibody is designed to interfere with a checkpoint pathway that can suppress immune responses against tumors. This mechanism places Cobolimab in the immunotherapy class of oncology agents.

Who is developing Cobolimab?

Cobolimab is being developed by GSK plc, which trades under the ticker GSK. The company is the sponsor of the clinical program evaluating the drug in oncology indications, including non-small cell lung cancer and melanoma.

What phase is Cobolimab in?

Cobolimab is in Phase 2 clinical development. It is an investigational agent and has not been approved by the FDA. The Phase 2 program includes a randomized, active-controlled study in advanced non-small cell lung cancer, and additional Phase 1 studies are ongoing in other tumor types.

What clinical trials is Cobolimab in?

Cobolimab is being studied in three registered trials. NCT04655976 is a Phase 2 study in advanced non-small cell lung cancer comparing Cobolimab plus dostarlimab plus docetaxel against dostarlimab plus docetaxel and docetaxel alone. NCT06521567 is a Phase 1 study in pediatric and young adult cancer patients, and NCT02817633 is a Phase 1 study in advanced solid tumors.

Is Cobolimab the same as TSR-022?

Yes, Cobolimab is also known as TSR-022. TSR-022 was the earlier designation used for the same monoclonal antibody, and the AMBER Phase 1 study in advanced solid tumors was conducted under that name. Both names refer to the same investigational HAVCR2 inhibitor developed by GSK.