IDRX-42 + Sunitinib for Gastrointestinal Stromal Tumor

Not yet recruiting at 2 trial locations
Age: 18+
Sex: Any
Trial Phase: Phase 3
Sponsor: GlaxoSmithKline
Must be taking: Imatinib
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)
Pivotal Trial (Near Approval)This treatment is in the last trial phase before FDA approval
Prior Safety DataThis treatment has passed at least one previous human trial

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial aims to determine if a new drug, IDRX-42, is more effective than the existing drug, sunitinib, for treating Gastrointestinal Stromal Tumors (GIST). It targets individuals whose GIST has spread or cannot be surgically removed and who have not responded to the drug imatinib. Participants must have a confirmed diagnosis of GIST that is either metastatic or inoperable. As a Phase 3 trial, this study serves as the final step before FDA approval, providing participants an opportunity to contribute to potentially groundbreaking treatment advancements.

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

The trial information does not specify if you need to stop taking your current medications. It's best to discuss this with the trial coordinators or your doctor.

Is there any evidence suggesting that this trial's treatments are likely to be safe?

Research has shown that IDRX-42 has been tested in people with advanced gastrointestinal stromal tumors (GIST). In these studies, most participants tolerated IDRX-42 well, experiencing no serious side effects. Some experienced mild or moderate side effects, which caused discomfort but were not severe for most.

Sunitinib, the other drug in this study, has received FDA approval for treating GIST, indicating its safety is well-understood. Common side effects include fatigue, diarrhea, and changes in skin color, but these are usually manageable.

Both treatments have undergone safety studies, and while side effects can occur, they are often not severe. Participants should discuss any concerns with their doctor to understand what to expect and how to manage any possible side effects.12345

Why do researchers think this study treatment might be promising for GIST?

Researchers are excited about IDRX-42 for treating gastrointestinal stromal tumor (GIST) because it offers a novel approach compared to existing therapies like imatinib and regorafenib. Unlike these standard treatments, which primarily target the KIT and PDGFRA mutations in GIST, IDRX-42 introduces a new mechanism by targeting additional pathways that could overcome resistance found in later-stage tumors. Additionally, when combined with sunitinib, a well-established therapy, there’s potential for enhanced effectiveness, providing hope for patients who have limited options after resistance to first-line treatments.

What evidence suggests that this trial's treatments could be effective for Gastrointestinal Stromal Tumor?

Research has shown that IDRX-42, also known as GSK6042981, holds promise for treating Gastrointestinal Stromal Tumors (GIST). In early studies, IDRX-42 reduced tumor size in about 29% of patients, a significant outcome for those who have tried other treatments. IDRX-42 targets specific proteins in cancer cells to halt tumor growth. In this trial, participants will receive either IDRX-42 or sunitinib, an existing treatment effective for GIST after treatments like imatinib. Studies suggest both drugs have potential, but IDRX-42 might offer new hope for patients whose cancer has spread or cannot be surgically removed.23467

Are You a Good Fit for This Trial?

This trial is for adults with Gastrointestinal Stromal Tumors (GIST) that have spread or can't be removed by surgery, and who've already tried imatinib. Participants must have confirmed GIST diagnosis and provide tumor tissue for analysis. They cannot join if they haven't progressed on or tolerated imatinib.

Inclusion Criteria

My GIST cannot be removed by surgery and may have spread.
My cancer got worse or I couldn't tolerate the first treatment with imatinib.
I can provide a tissue sample from my tumor for testing.

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants receive either IDRX-42 or Sunitinib to evaluate effectiveness and safety in treating GIST

Up to approximately 130 weeks

Follow-up

Participants are monitored for safety and effectiveness after treatment

Up to approximately 261 weeks

What Are the Treatments Tested in This Trial?

Interventions

  • IDRX-42
  • Sunitinib
Trial Overview The study compares a new drug, IDRX-42 (GSK6042981), to an existing drug, sunitinib, in treating GIST after imatinib therapy. It aims to determine the effectiveness and safety of IDRX-42 in managing this cancer type.
How Is the Trial Designed?
2Treatment groups
Experimental Treatment
Active Control
Group I: IDRX-42 (GSK6042981)Experimental Treatment1 Intervention
Group II: SunitinibActive Control1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

GlaxoSmithKline

Lead Sponsor

Trials
4,834
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

Citations

A Study of IDRX-42 (GSK6042981) Versus (vs) Sunitinib in ...The purpose of this study is to find out if a new drug, called IDRX-42 (also known as GSK6042981), is effective in treating adults with a type ...
StrateGIST 1: A first-in-human (FIH), phase 1 study of IDRX ...We present data from the ongoing FIH phase (ph) 1 study evaluating IDRX-42 in patients (pts) with metastatic GIST in 2nd or later lines of ...
M4205 (IDRX-42) Is a Highly Selective and Potent Inhibitor ...The preclinical data strongly support the clinical development of M4205 which is currently being investigated as IDRX-42 in a phase I first-in-human study with ...
IDRx Announces Updated Phase 1 Data from Ongoing ...IDRX-42 continues to demonstrate promising anti-tumor activity with a 29% ORR across all patients (median four prior lines of therapy) and a ...
Phase 1/1b first-in-human study of IDRX-42, a novel oral ...Phase 1/1b first-in-human study of IDRX-42, a novel oral tyrosine kinase inhibitor (TKI), in patients with metastatic and/or unresectable gastrointestinal ...
NCT05489237 | First-in-human Study of IDRX-42 ...The study is designed to evaluate the safety, tolerability, PK, and preliminary antitumor activity of IDRX-42 in adult participants with advanced (metastatic ...
First-in-human Study of IDRX-42 in Participants With ...The study is designed to evaluate the safety, tolerability, PK, and preliminary antitumor activity of IDRX-42 in adult participants with ...
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