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

NCT04439188 | Active Not Recruiting Phase 2 Results DMC

• 4 other identifiers: NCI-2020-03143EAY131-PU10CA180820U24CA196172
• Study Type: interventional
• Target: 35
• Locations: 1 country
• Sites: 1

Brief 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.

Conditions

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

Outcome Measures

Primary Outcomes (1)

• Objective Response Rate (ORR)

  ORR is defined as the percentage of patients whose tumors have a complete or partial response to treatment among analyzable patients. Objective response is defined consistent with Response Evaluation Criteria in Solid Tumors version 1.1, the Cheson (2014) criteria for lymphoma patients, and the Response Assessment in Neuro-Oncology criteria for glioblastoma patients. Details about how to define complete response and partial response can be found in the master protocol. 90% two-sided binomial exact confidence interval is calculated for ORR.

  Tumor assessments occurred at baseline, then every 2 cycles for the first 26 cycles and every 3 cycles thereafter until disease progression, up to 3 years post registration

Secondary Outcomes (2)

• 6-month Progression-free Survival (PFS) Rate

  Assessed at baseline, then every 2 cycles for the first 26 cycles, and every 3 cycles thereafter until disease progression, up to 3 years post registration, from which 6-month PFS rate is determined

• Progression Free Survival (PFS)

  Assessed at baseline, then every 2 cycles for the first 26 cycles and every 3 cycles thereafter until disease progression, up to 3 years post registration

Study Arms (1)

Treatment (GSK2636771)

EXPERIMENTAL

Patients receive PI3K-beta inhibitor GSK2636771 400 mg PO QD on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.

Drug: PI3K-beta Inhibitor GSK2636771

Interventions

PI3K-beta Inhibitor GSK2636771 DRUG

Given PO

Also known as: GSK-2636771, GSK2636771

Treatment (GSK2636771)

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Patients must have met applicable eligibility criteria in the Master MATCH Protocol prior to registration to treatment subprotocol
• Patients must have an electrocardiogram (ECG) within 8 weeks prior to treatment assignment and must have no clinically important abnormalities in rhythm, conduction or morphology of resting ECG (e.g. complete left bundle branch block, third degree heart block)
• Patients must have complete loss of cytoplasmic and nuclear PTEN staining on immunohistochemistry as determined by the MATCH PTEN immunohistochemistry (IHC) assay performed at MD Anderson. Patients can have any PTEN mutation or deletion status, but MUST have PTEN loss by IHC
• Patients must have hemoglobin \>= 9 g/dL
• Patients must have a serum creatinine that is \< 1.5 x upper limit of normal (ULN) or have a 24-hour creatinine clearance of \> 50 mL/min

You may not qualify if:

• Patients must not have known hypersensitivity to GSK2636771 or compounds of similar chemical or biologic composition
• Patients must not have tumors harboring co-existing aberrations activating the PI3K/MTOR and MAPK pathways, such as PIK3CA, PIK3R1, BRAF, KRAS and AKT1, TSC1/2, mTOR, NF2, NRAS, HRAS, NF1
• Patients must not have received prior treatment with agents targeting the PI3K beta, AKT, or mTOR:
• This includes (but is not limited to):
• mTOR inhibitors: temsirolimus, everolimus, ridaforolimus, sirolimus, salirasib, CC-223, INK128, DS-3078, CC-115, AZD-2014
• Dual PI3K/mTOR inhibitors: BEZ235, XL-765, GDC 0980, PF-04691502, GSK 2126458, Quinacrine, PKI-587, P-P7170, LY3023414, GDC 0084, DS 7423, CBLC-137
• Pan-PI3K inhibitors: BKM-120 (buparlisib), PX-866, XL-147, GDC-0941 (pictilisib), BAY-806946, ZSTK-474, WX 037, SRX5000, SRX2523, AMG511, PQR308, BAY 94-9343
• PI3K inhibitors with beta isoform activity: prior GSK2636771 is not allowed, nor is GS-9820, PQR3XX, KAR4139
• The following previous treatments are allowed:
• BYL719 (PI3Kalpha inhibitor)
• GDC-0032 (PI3Kalpha inhibitor)
• INK1117 (PI3Kalpha inhibitor)
• Idelalisib (PI3Kdelta inhibitor)
• IPI-125 (PI3K gamma delta inhibitor)
• TGR1202 (PI3Kdelta inhibitor)

Sponsors & Collaborators

• National Cancer Institute (NCI): lead

Study Sites (1)

ECOG-ACRIN Cancer Research Group

Philadelphia, Pennsylvania, 19103, United States

Location

MeSH Terms

Conditions

Hematologic Neoplasms; Lymphoma; Multiple Myeloma

Interventions

GSK2636771

Condition Hierarchy (Ancestors)

Neoplasms by Site; Neoplasms; Hematologic Diseases; Hemic and Lymphatic Diseases; Neoplasms by Histologic Type; Lymphoproliferative Disorders; Lymphatic Diseases; Immunoproliferative Disorders; Immune System Diseases; Neoplasms, Plasma Cell; Hemostatic Disorders; Vascular Diseases; Cardiovascular Diseases; Paraproteinemias; Blood Protein Disorders; Hemorrhagic Disorders

Results Point of Contact

• Title: Study Statistician
• Organization: ECOG-ACRIN Cancer Research Group

eatrials@jimmy.harvard.edu

617-632-3012

Study Officials

• Filip Janku

  ECOG-ACRIN Cancer Research Group

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: No
• Restriction Type: LTE60
• Restrictive Agreement: Yes

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: NIH
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: June 18, 2020
• First Posted: June 19, 2020
• Study Start: March 21, 2016
• Primary Completion: November 10, 2020
• Study Completion (Estimated): December 31, 2026
• Last Updated: May 27, 2026
• Results First Posted: October 20, 2025

Record last verified: 2026-05

Locations

US (1)