NCT04439188

Testing GSK2636771 as a Potential Targeted Treatment in Cancers With PTEN Loss of Expression (MATCH-Subprotocol P)

MATCH Treatment Subprotocol P: Phase II Study of PI3K Beta Specific Inhibitor, GSK2636771, in Patients With Tumors With PTEN Loss by IHC

• Status: Active Not Recruiting
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 35 (actual)
• Sponsor: National Cancer Institute (NCI) · NIH
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This phase II MATCH treatment trial identifies the effects of GSK2636771 in patients whose cancer has a complete loss of PTEN expression. GSK2636771 may block a protein called PI3K-beta, which may be needed for growth of cancer cells with complete loss of PTEN expression. Researchers hope to learn if GSK2636771 will shrink this type of cancer or stop its growth.

Detailed description

PRIMARY OBJECTIVE: I. To evaluate the proportion of patients with objective response (OR) to targeted study agent(s) in patients with advanced refractory cancers/lymphomas/multiple myeloma. SECONDARY OBJECTIVES: I. To evaluate the proportion of patients alive and progression free at 6 months of treatment with targeted study agent in patients with advanced refractory cancers/lymphomas/multiple myeloma. II. To evaluate time until death or disease progression. III. To identify potential predictive biomarkers beyond the genomic alteration by which treatment is assigned or resistance mechanisms using additional genomic, ribonucleic acid (RNA), protein and imaging-based assessment platforms. IV. To assess whether radiomic phenotypes obtained from pre-treatment imaging and changes from pre- through post-therapy imaging can predict objective response and progression free survival and to evaluate the association between pre-treatment radiomic phenotypes and targeted gene mutation patterns of tumor biopsy specimens. OUTLINE: Patients receive PI3K-beta inhibitor GSK2636771 (GSK2636771) 400 mg orally (PO) once daily (QD) on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up every 3 months if less than 2 years from study entry, and then every 6 months for year 3 from study entry. THE MATCH SCREENING TRIAL: Please see NCT02465060 for information on the MATCH Screening Protocol and applicable documents.

Conditions

• Advanced Lymphoma
• Advanced Malignant Solid Neoplasm
• Hematopoietic and Lymphoid Cell Neoplasm
• Refractory Lymphoma
• Refractory Malignant Solid Neoplasm
• Refractory Multiple Myeloma

Interventions

Type	Name	Description
DRUG	PI3K-beta Inhibitor GSK2636771	Given PO

Timeline

• Start date: 2016-03-21
• Primary completion: 2020-11-10
• Completion: 2026-12-31
• First posted: 2020-06-19
• Last updated: 2025-11-19
• Results posted: 2025-10-20

Locations

1 site across 1 country: United States