~13 spots leftby Dec 2025

GSK6097608 + Dostarlimab for Advanced Cancers

Recruiting in Palo Alto (17 mi)
+10 other locations
Age: 18+
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase 1
Waitlist Available
Sponsor: GlaxoSmithKline
Must not be taking: Immunosuppressants, Chemotherapy
Disqualifiers: Active infection, Autoimmune disease, others
No Placebo Group

Trial Summary

What is the purpose of this trial?

This trial tests new drugs alone or in combination to treat people with advanced solid tumors. The drugs either attack cancer cells directly or help the immune system fight cancer. The study includes Japanese and Chinese participants.

Do I need to stop my current medications to join the trial?

The trial protocol does not specify if you need to stop taking your current medications. However, you must not have had any prior anti-cancer treatment within 4 weeks or 5 half-lives of the drug, whichever is shorter.

What data supports the effectiveness of the drug combination GSK6097608 and Dostarlimab for advanced cancers?

Dostarlimab, one of the drugs in the combination, has shown effectiveness in treating certain advanced cancers, like endometrial cancer, by blocking a protein that helps cancer cells hide from the immune system. It has been approved for use in the US and EU based on its ability to shrink tumors and maintain that response.12345

Is the combination of GSK6097608 and Dostarlimab safe for humans?

Dostarlimab, also known as Jemperli, has been approved for use in certain types of advanced cancers, and its safety has been evaluated in clinical trials for various conditions. While specific safety data for the combination with GSK6097608 is not provided, Dostarlimab has been generally considered safe in humans for approved uses.12356

What makes the drug combination of GSK6097608 and Dostarlimab unique for treating advanced cancers?

This drug combination is unique because it includes Dostarlimab, a monoclonal antibody that targets the PD-1 receptor, which is involved in the immune system's ability to fight cancer. Dostarlimab has shown promising results in treating various cancers, including endometrial cancer, by enhancing the body's immune response against tumors.12357

Research Team

GC

GSK Clinical Trials

Principal Investigator

GlaxoSmithKline

Eligibility Criteria

Adults with advanced solid tumors who've tried standard treatments without success or can't tolerate them. They must be in good physical condition, have proper organ function, and for certain arms of the trial, provide fresh tumor biopsies. Women able to have children must use effective birth control. Exclusions include uncontrolled brain metastases, recent cancers besides the one being treated, active autoimmune diseases requiring treatment within 2 years, liver disease, infections like HIV/HBV/HCV, heart risks including QT prolongation on ECG.

Inclusion Criteria

Adequate cardiac ejection fraction as measured by echocardiogram
I am fully active or restricted in physically strenuous activity but can do light work.
Arm A-China, Arm B-China, Arm D-China, Arm E-China and Arm F-China only: is of Chinese descent and lives in China
See 9 more

Exclusion Criteria

You have a history of drug or alcohol abuse.
I have had a bone marrow or organ transplant.
I haven't had cancer treatment or experimental drugs in the last 4 weeks.
See 17 more

Treatment Details

Interventions

  • Cobolimab (Other)
  • Dostarlimab (Monoclonal Antibodies)
  • GSK4428859A (EOS884448) (Other)
  • GSK6097608 (Other)
Trial OverviewThe study tests GSK6097608 alone and combined with dostarlimab against various solid tumors. Dostarlimab is also tested alone and with belrestotug or cobolimab in specific participant groups from Japan and China. The goal is to assess safety and effectiveness while monitoring how the body processes these drugs (pharmacokinetics) and their impact on the body (pharmacodynamics).
Participant Groups
6Treatment groups
Experimental Treatment
Group I: Participants receiving dostarlimab plus cobolimab (Arm G)Experimental Treatment2 Interventions
Participants will be administered an IV infusion of cobolimab followed by dostarlimab
Group II: Participants receiving dostarlimab plus belrestotug plus GSK6097608 (Arm F)Experimental Treatment3 Interventions
Participants will be administered an IV infusion of dostarlimab followed by belrestotug followed by GSK6097608 every 3 weeks.
Group III: Participants receiving dostarlimab plus belrestotug (Arm E)Experimental Treatment2 Interventions
Participants will be administered IV infusions of dostarlimab followed by belrestotug, every 3 weeks.
Group IV: Participants receiving dostarlimab monotherapy (Arm D)Experimental Treatment1 Intervention
Participants will be administered an IV infusion of dostarlimab monotherapy (1 cohort will receive dostarlimab every 3 weeks and 1 cohort will receive dostarlimab every 6 weeks).
Group V: Participants receiving GSK6097608 plus dostarlimab (Arm B)Experimental Treatment2 Interventions
Participants will be administered IV infusion of GSK6097608 every 3 weeks in escalating doses followed by dostarlimab.
Group VI: Participants receiving GSK6097608 monotherapy (Arm A)Experimental Treatment1 Intervention
Participants will be administered an intravenous (IV) infusion of GSK6097608 every 3 weeks as monotherapy in escalating doses.

Find a Clinic Near You

Research Locations NearbySelect from list below to view details:
GSK Investigational SiteDallas, TX
GSK Investigational SiteToronto, Canada
GSK Investigational SiteHouston, TX
GSK Investigational SiteLos Angeles, CA
More Trial Locations
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Who Is Running the Clinical Trial?

GlaxoSmithKline

Lead Sponsor

Trials
4834
Recruited
8,389,000+
Headquarters
London, UK
Known For
Vaccines & Medicines
Top Products
**Advair (salmeterol, fluticasone propionate)**, **Shingrix (shingles vaccine)**, **Augmentin (amoxicillin/clavulanate potassium)**, **Ventolin (salbutamol sulfate)
Dame Emma Walmsley profile image

Dame Emma Walmsley

GlaxoSmithKline

Chief Executive Officer since 2017

MA in Classics and Modern Languages from Oxford University

Dr. Hal Barron profile image

Dr. Hal Barron

GlaxoSmithKline

Chief Medical Officer since 2018

MD from Harvard Medical School

iTeos Therapeutics

Industry Sponsor

Trials
11
Recruited
2,500+

23andMe, Inc.

Industry Sponsor

Trials
10
Recruited
83,700+

Findings from Research

Dostarlimab (JEMPERLI) is a PD-1 monoclonal antibody that has received rapid FDA approval for treating adult patients with mismatch repair deficient (dMMR) recurrent or advanced endometrial cancer, showing promising tumor response rates.
A clinical trial (NCT04165772) reported a remarkable 100% remission rate for rectal cancer patients treated with Dostarlimab, highlighting the potential of matching tumor genetics with targeted therapies, and the trial is ongoing for other cancer types like gastric, prostate, and pancreatic cancers.
Dostarlimab: A Review.Costa, B., Vale, N.[2022]
Dostarlimab showed promising antitumor activity in patients with recurrent/advanced non-small cell lung cancer (NSCLC) who had progressed after platinum-based chemotherapy, achieving an immune-related objective response rate (irORR) of 26.9% across various PD-L1 expression levels.
The treatment was generally well-tolerated, with fatigue being the most common severe adverse event (4.5%), and immune-related treatment-emergent adverse events occurring in 28.4% of patients, indicating an acceptable safety profile.
Safety and Efficacy of Dostarlimab in Patients With Recurrent/Advanced Non-small Cell Lung Cancer: Results from Cohort E of the Phase I GARNET Trial.Moreno, V., Roda, D., Pikiel, J., et al.[2023]

References

Dostarlimab: A Review. [2022]
Safety and Efficacy of Dostarlimab in Patients With Recurrent/Advanced Non-small Cell Lung Cancer: Results from Cohort E of the Phase I GARNET Trial. [2023]
Dostarlimab: First Approval. [2021]
Comparative analysis of PD-1 target engagement of dostarlimab and pembrolizumab in advanced solid tumors using ex vivo IL-2 stimulation data. [2023]
New Drug for Mismatch Repair Deficient Endometrial Cancer and Solid Tumors. [2023]
New Drug Update: Dostarlimab, Loncastuximab Tesirine, and Aducanumab. [2022]
Dostarlimab for the treatment of endometrium cancer and other solid tumors. [2021]