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Testing GDC-0032 (Taselisib) as a Potential Targeted Treatment in Cancers With PIK3CA Genetic Changes (MATCH-Subprotocol I)

MATCH Treatment Subprotocol I: GDC-0032 (Taselisib) in Patients With Tumors (Other Than Breast Cancer) With PIK3CA Mutation But Without KRAS Mutation or PTEN Loss

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04439175
Enrollment
70
Registered
2020-06-19
Start date
2016-02-25
Completion date
2026-03-19
Last updated
2025-11-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

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

Brief summary

This phase II MATCH treatment trial identifies the effects of GDC-0032 (taselisib) in patients whose cancer has a genetic change called PIK3CA mutation. Taselisib may stop the growth of cancer cells by blocking PIK3CA, a protein that may be needed for cell growth. Researchers hope to learn if taselisib 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 taselisib 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.

Interventions

Given PO

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must have met applicable eligibility criteria in the Master MATCH Protocol prior to registration to treatment subprotocol * Patients must have a PIK3CA mutation as determined via the MATCH Master Protocol * 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 with known left ventricular dysfunction must have echocardiogram (ECHO) or multigated acquisition scan (MUGA) within 4 weeks prior to registration to treatment and must not have left ventricular ejection fraction (LVEF) \< institutional lower limit of normal (LLN). If the LLN is not defined at a site, the LVEF must be \> 50% for the patient to be eligible * Patients must have a fasting glucose =\< 125 mg/dL * NOTE: Please provide clear documentation that the glucose test was conducted at a fasting state * Patients with prior treatment with an mTOR inhibitor are acceptable. These include, but are not limited to: temsirolimus, everolimus, ridaforolimus, sirolimus, CC-223, MLN128 (INK128), DS-3078, CC-115, AZD-2014, AZD8055

Exclusion criteria

* Patients must not have known hypersensitivity to GDC-0032 (taselisib) or compounds of similar chemical or biologic composition * Patients must not have breast cancer * Patients with squamous cell carcinoma of the lung who have PIK3CA mutations who have access to AND are eligible for Lung-MAP (S1400) are not eligible * Patients must not have KRAS mutations, and/or PTEN mutation or loss, detected in the tumor sample as determined by the MATCH screening assessment. PTEN loss will be determined by immunohistochemistry * Patients must not have had prior therapy with a PI3K inhibitor or PI3K/mTOR inhibitor. These include, but are not limited to: BEZ235, XL-765 (SAR245409), GDC-0980, PF-04691502, PF-05212384 (PKI-587), SF-1126, GSK 2126458, P-7170, BGT-226, LY3023414, GDC-0084, DS-7423, BKM-120 (buparlisib), PX-866, XL-147, GDC-0941 (pictilisib), VS-5584, BAY-80-6946, ZSTK-474, WX 037, AZD8835, GSK2636771, GS-9820, BYL719, MLN1117 (INK1117), idelalisib, TGR1202, RP6530, duvelisib (IPI-145), CUDC-907. Prior GDC-0032 (taselisib) is not allowed * Patients must not have had prior therapy with an Akt inhibitor. These include, but are not limited to: MK-2206, GSK690693, AZD5363, triciribine, perifosine, GSK2141795, GSK2110183, SR13668, BAY1125976, GDC-0068 (ipatasertib), LY2780301, ARQ092 * Patients must not have type 1 or 2 diabetes requiring anti-hyperglycemic medication (e.g. metformin, glipizide, insulin) * Patients must not have current dyspnea at rest or require any daily supplemental oxygen * Patients must not have history of inflammatory bowel disease (e.g. Crohn's disease or ulcerative colitis) or active bowel inflammation (e.g. diverticulitis)

Design outcomes

Primary

MeasureTime frameDescription
Overall Response Rate (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 registrationOverall response rate was defined as the proportion of patients with best overall response of complete response (CR) or partial response (PR) among all eligible and treated patients. Best overall response was evaluated using the 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. The 90% two-sided binomial exact confidence interval was calculated for ORR.

Secondary

MeasureTime frameDescription
6-Month Progression-free Survival (PFS) RateAssessed 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 is determinedPFS was defined as time from treatment start date to date of disease progression or death from any causes, whichever occurred first. The 6-month PFS rate was estimated using the Kaplan-Meier method which can provide a point estimate for any specific time point. Disease progression was evaluated using the 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.
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 registrationPFS was defined as time from treatment start date to date of disease progression or death from any causes, whichever occurred first. Median PFS was estimated using the Kaplan-Meier method. Disease progression was evaluated using the 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.

Countries

United States

Participant flow

Recruitment details

Subprotocol I was activated on February 25, 2016. 97 patients were assigned to Subprotocol I after screening, all from the screening cohort. Of the 97 patients, 70 patients enrolled in the study between March 2016 and April 2017.

Pre-assignment details

To be assigned to a specific MATCH subprotocol, patients needed to submit a tumor biopsy for molecular characterization and those with molecular variants addressed by treatments included in the trial entered corresponding MATCH subprotocol. For subprotocol W, patients had to have tumors with an activating PIK3CA mutation.

Participants by arm

ArmCount
Treatment (Taselisib)
Patients receive taselisib PO QD on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Taselisib: Given PO
61
Total61

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event6
Overall StudyAlternative Therapy1
Overall StudyDeath4
Overall StudyDisease progression44
Overall StudyIneligible5
Overall StudyNever started treatment4
Overall StudyOther2
Overall StudyWithdrawal by Subject4

Baseline characteristics

CharacteristicTreatment (Taselisib)
Age, Continuous57 years
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
57 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
3 Participants
Race (NIH/OMB)
Black or African American
5 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
Race (NIH/OMB)
White
49 Participants
Sex: Female, Male
Female
43 Participants
Sex: Female, Male
Male
18 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
66 / 70
other
Total, other adverse events
51 / 66
serious
Total, serious adverse events
23 / 66

Outcome results

Primary

Overall Response Rate (ORR)

Overall response rate was defined as the proportion of patients with best overall response of complete response (CR) or partial response (PR) among all eligible and treated patients. Best overall response was evaluated using the 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. The 90% two-sided binomial exact confidence interval was calculated for ORR.

Time frame: 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

ArmMeasureValue (NUMBER)
Treatment (Taselisib)Overall Response Rate (ORR)0 percentage of participants
Secondary

6-Month Progression-free Survival (PFS) Rate

PFS was defined as time from treatment start date to date of disease progression or death from any causes, whichever occurred first. The 6-month PFS rate was estimated using the Kaplan-Meier method which can provide a point estimate for any specific time point. Disease progression was evaluated using the 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.

Time frame: 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 is determined

ArmMeasureValue (NUMBER)
Treatment (Taselisib)6-Month Progression-free Survival (PFS) Rate19.9 percentage of participants
Secondary

Progression-free Survival (PFS)

PFS was defined as time from treatment start date to date of disease progression or death from any causes, whichever occurred first. Median PFS was estimated using the Kaplan-Meier method. Disease progression was evaluated using the 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.

Time frame: 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

ArmMeasureValue (MEDIAN)
Treatment (Taselisib)Progression-free Survival (PFS)3.1 months

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026