A Study to Test Inavolisib Treatment in Participants With Metastatic Castration-Resistant Prostate Cancer

NCT ID: NCT07287150

Last Updated: 2026-01-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-03-31

Study Completion Date

2029-07-30

Brief Summary

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This study will evaluate the efficacy and safety of the combination of inavolisib plus enzalutamide compared with physician's choice of alternative androgen receptor pathway inhibitor (ARPi) or docetaxel in biomarker-selected participants with metastatic castrate-resistant prostate cancer (mCRPC) who have received one prior second-generation ARPi.

Detailed Description

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Conditions

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Metastatic Castration-Resistant Prostate Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Arm 1

Participants will receive Inavolisib plus enzalutamide

Group Type EXPERIMENTAL

Inavolisib

Intervention Type DRUG

Inavolisib will be administered orally as per the schedule specified in the protocol.

Enzalutamide

Intervention Type DRUG

Enzalutamide will be administered orally as per the schedule specified in the protocol.

FoundationOne® CDx (F1CDx) Assay

Intervention Type DIAGNOSTIC_TEST

F1CDx is a next-generation sequencing (NGS)-based in vitro diagnostic test that will be used to determine a participant's biomarker status.

Arm 2

Participants will receive either ARPi switch (enzalutamide or abiraterone) or docetaxel

Group Type ACTIVE_COMPARATOR

Enzalutamide

Intervention Type DRUG

Enzalutamide will be administered orally as per the schedule specified in the protocol.

Abiraterone

Intervention Type DRUG

Abiraterone will be administered orally as per the schedule specified in the protocol.

Docetaxel

Intervention Type DRUG

Docetaxel will be administered intravenously as per the schedule specified in the protocol.

FoundationOne® CDx (F1CDx) Assay

Intervention Type DIAGNOSTIC_TEST

F1CDx is a next-generation sequencing (NGS)-based in vitro diagnostic test that will be used to determine a participant's biomarker status.

Interventions

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Inavolisib

Inavolisib will be administered orally as per the schedule specified in the protocol.

Intervention Type DRUG

Enzalutamide

Enzalutamide will be administered orally as per the schedule specified in the protocol.

Intervention Type DRUG

Abiraterone

Abiraterone will be administered orally as per the schedule specified in the protocol.

Intervention Type DRUG

Docetaxel

Docetaxel will be administered intravenously as per the schedule specified in the protocol.

Intervention Type DRUG

FoundationOne® CDx (F1CDx) Assay

F1CDx is a next-generation sequencing (NGS)-based in vitro diagnostic test that will be used to determine a participant's biomarker status.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Histologically or cytologically confirmed adenocarcinoma of the prostate without small-cell or neuroendocrine features
* Progressive metastatic CRPC, defined as any of the following: PSA progression, defined by a minimum of two rising PSA values from three consecutive assessments with an interval of at least 7 days between assessments and with a minimal starting value of PSA \>=1 ng/mL; The most recent qualifying PSA value must be determined within 14 days of enrollment; Soft tissue disease progression, defined by Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1); Bone disease progression, defined by PCWG3 criteria, with two or more new metastatic bone lesions on a whole-body radionuclide bone scan
* Treatment with at least one, but no more than one, prior second-generation ARPi (abiraterone, apalutamide, enzalutamide, darolutamide) for hormone- sensitive prostate cancer (HSPC) or CRPC
* Availability of a tumor tissue specimen that is suitable (e.g., adequate quality and quantity) for use in determining biomarker status
* Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
* Fasting glucose \</= 100 mg/dL and HbA1c \< 5.7%

Exclusion Criteria

* Presence of liver metastasis
* Prior treatment with any phosphatidylinositol-3-kinase (PI3K), protein kinase B (AKT), or mammalian target of rapamycin (mTOR) inhibitor, or with any agent with a mechanism of action of inhibiting the PI3K/AKT/mTOR pathway
* Type 1 or Type 2 diabetes mellitus
* Prior treatment for mCRPC with cytotoxic chemotherapy or novel hormonal treatments (e.g., androgen receptor degraders, CYP11 inhibitors), with the following treatments permitted: Prior docetaxel in mHSPC, providing no evidence of disease progression occurred during treatment or within 6 months of treatment completion; Prior docetaxel in the adjuvant or neoadjuvant setting providing no evidence of disease progression occurred during treatment or within 12 months of treatment completion; Prior treatment with sipuleucel-T, with the last dose administered \>28 days prior to start of treatment; Prior PARPi therapy, as per local prescribing information, with the last dose administered \>14 days prior to start of treatment; One prior RLT or radiotherapeutic agent (e.g., PSMA-targeted RLT, Radium 223) with the last dose administered \>8 weeks prior to start of treatment
* One prior RLT or radiotherapeutic agent (e.g., PSMA-targeted RLT, Radium 223) with the last dose administered \> 8 weeks prior to start of treatment
* Other concurrent anti-cancer therapy except for androgen deprivation therapy
* Treatment with strong CYP2C8 inhibitors, strong or moderate CYP2C8 inducers, or strong CYP3A4 inducers within 1 week or 5 drug-elimination half-lives, whichever is longer, prior to initiation of study treatment
* Transfusion of any blood product for the sole purpose of making a potential participant eligible for study inclusion or within 28 days of enrollment
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Hoffmann-La Roche

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Clinical Trials

Role: STUDY_DIRECTOR

Hoffmann-La Roche

Locations

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Holden Comprehensive Cancer Center

Iowa City, Iowa, United States

Site Status RECRUITING

Carolina Urologic Research Center

Myrtle Beach, South Carolina, United States

Site Status RECRUITING

Jewish General Hospital

Montreal, Quebec, Canada

Site Status RECRUITING

Seoul National University Hospital

Seoul, , South Korea

Site Status RECRUITING

Samsung Medical Center

Seoul, , South Korea

Site Status RECRUITING

Countries

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United States Canada South Korea

Central Contacts

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Reference Study ID Number: CO45813 https://forpatients.roche.com/

Role: CONTACT

888-662-6728 (U.S. and Canada)

Other Identifiers

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2025-521327-67-00

Identifier Type: CTIS

Identifier Source: secondary_id

CO45813

Identifier Type: -

Identifier Source: org_study_id

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