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Study Comparing AAA817+ARPI Versus Standard of Care in Adult Participants With PSMA-positive mCRPC

NCT06855277 · Status: RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 940

Last updated 2026-02-24

No results posted yet for this study

Summary

The purpose of this study is to determine whether \[225Ac\]Ac-PSMA-617 (AAA817), given for up to 6 cycles at a dose of 10 Megabecquerel (MBq) +/- 10%, plus androgen receptor pathway inhibitor (ARPI), improves the radiographic progression free survival (rPFS) compared to investigator's choice of standard of care (SOC) (ARPI change or taxane-based chemotherapy or \[177Lu\]Lu-PSMA-617 (AAA617)) in adult participants with PSMA-positive metastatic castration resistant prostate cancer (mCRPC) treated with another ARPI as last treatment and who have not been exposed to a taxane-containing chemotherapy in the mCRPC setting nor have received any prior PSMA-targeting radioligand therapy.

Conditions

Interventions

DRUG

AAA817

AAA817 is being studied for treating PSMA positive mCRPC. Inside the body, it attaches itself to PSMA on the cell surface of the prostate cancer cells and emits radiation to kill them. This treatment is also called a radioligand therapy.

DRUG

ARPI

Androgen receptor pathway inhibitor (ARPI): An ARPI is approved for the treatment of prostate cancer. It works by blocking signals from male hormones, such as testosterone, that helps cancer cells grow. By blocking these signals, an ARPI slows down or stops the growth of prostate cancer cells. In this trial, participants will be given either enzalutamide or abiraterone.

DRUG

Standard of Care

Standard treatment includes approved treatment for mCRPC. In this trial, the trial doctor will decide which available treatment participants will receive. The trial doctor will select either an ARPI of enzalutamide or abiraterone, or a taxane based chemotherapy of docetaxel or cabazitaxel or \[177Lu\]Lu-PSMA-617 (AAA617).

Sponsors & Collaborators

Principal Investigators

  • Novartis Pharmaceuticals · Novartis Pharmaceuticals

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
100 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-07-01
Primary Completion
2028-09-29
Completion
2032-11-04
FDA Drug
Yes

Countries

  • United States
  • Australia
  • Brazil
  • China
  • Hong Kong
  • India
  • Japan
  • Singapore
  • South Korea
  • Taiwan
  • United Kingdom

Study Locations

More Related Trials

Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06855277 on ClinicalTrials.gov