Open-label Study Comparing AAA817 Versus Standard of Care in the Treatment of Previously Treated PSMA-positive mCRPC Adults Who Have Disease Progressed on or After [177Lu]Lu-PSMA Targeted Therapy

NCT ID: NCT06780670

Last Updated: 2025-11-12

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

PHASE2/PHASE3

Total Enrollment

432 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-02-27

Study Completion Date

2033-07-19

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This is a Phase II/III study. Patient population is adult participants with PSMA-positive mCRPC who had treatments with androgen receptor pathway inhibitor (ARPI) and taxane-based chemotherapy and progressed on or after \[177Lu\]Lu-PSMA targeted therapy.

Treatment of interest: the investigational treatment is AAA817 regardless of subsequent anti-neoplastic treatment. The control treatment is investigator's choice of Standard of Care, regardless of subsequent anti-neoplastic treatment

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Study CAAA817A12201 consists of 2 parts: a randomized, open-label, international, multicenter, phase II study (Phase II) to collect more information to support the proposed dose of AAA817 and a randomized, open-label, international, multicenter, 2- arm phase III study (Phase III) aimed to evaluate the efficacy and safety of proposed dose of AAA817 vs. investigator's choice of standard of care (SoC) in the treatment of adult participants with PSMA-positive metastatic castration-resistant prostate cancer (mCRPC) who had treatments with ARPI and taxane-based chemotherapy, and progressed on or after \[177Lu\]Lu-PSMA targeted therapy. The purpose of the phase II part (Phase II) of this study is to collect additional information to support proposed phase III dose of AAA817.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Prostate Cancer

Keywords

Explore important study keywords that can help with search, categorization, and topic discovery.

post [177Lu]Lu-PSMA targeted therapy PSMA-positive mCRPC adults Metastatic castration-resistant prostate cancer AAA817 [225Ac]Ac-PSMA-617 PSMA-based targeted therapy Standard of Care SOC

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Phase II: AAA817 Dose B

AAA817 will be given for a number of cycles; a cycle = 8 weeks

Group Type EXPERIMENTAL

AAA817

Intervention Type DRUG

Investigational treatment is the Dose B of AAA817

Phase III: Investigator's choice of SoC

Participants will be given Standard of Care (SOC) treatment per Investigator's choice.

Group Type ACTIVE_COMPARATOR

Investigators choice of SoC

Intervention Type DRUG

The control treatment in Phase III is investigator's choice of SoC

Phase II: AAA817 Dose A

AAA817 Dose A will be given for a number of cycles: a cycle = 8 weeks

Group Type EXPERIMENTAL

AAA817

Intervention Type DRUG

The investigational treatment is AAA817

Phase III: Recommended Phase 3 Dose of AAA817

Rp3D of AAA817 will be given for a number of cycles; a cycle = 8 weeks

Group Type EXPERIMENTAL

AAA817

Intervention Type DRUG

The investigational treatment is AAA817

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Investigators choice of SoC

The control treatment in Phase III is investigator's choice of SoC

Intervention Type DRUG

AAA817

The investigational treatment is AAA817

Intervention Type DRUG

AAA817

The investigational treatment is AAA817

Intervention Type DRUG

AAA817

Investigational treatment is the Dose B of AAA817

Intervention Type DRUG

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

[225Ac]Ac-PSMA-617) [225Ac]Ac-PSMA-617) [225Ac]Ac-PSMA-617

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* adults ≥ 18 years of age.
* ECOG performance status of 0 to 2.
* histopathological and/or cytological confirmation of adenocarcinoma of the prostate.
* PSMA-positive disease as assessed by PSMA PET/CT scan using an approved PSMA imaging agent as protocol instructed,
* castrate level of serum/plasma testosterone (\< 50 ng/dL or \< 1.7 nmol/L).
* Prior treatments with an androgen receptor pathway inhibitor (ARPI) and taxane-based chemotherapy, and progressed on or after \[177Lu\]Lu-PSMA targeted therapy.
* ≥ 1 metastatic lesion that is present on screening/baseline CT, MRI, or bone scan imaging obtained ≤ 28 days prior to randomization
* eGFR as requested by the sponsor

Exclusion Criteria

* Any investigational agents within 28 days prior to the day of randomization.
* Any 225Ac-based investigational compound used prior to the day of randomization.
* Participants with a history of CNS metastases who are neurologically unstable, symptomatic, or receiving corticosteroids for the purpose of maintaining neurologic integrity.
* Concurrent acute kidney injury (renal failure developed between 48 hours to 7 days) or chronic kidney disease (at least 3 months of ongoing renal injury)
* Baseline xerostomia ≥ Grade 2 by CTCAE v.5
* History of uncontrolled hypertension, myocardial infarction (MI), angina pectoris, or coronary artery bypass graft (CABG) within 6 months prior to ICF signature and/or clinically active significant cardiac disease
* History of lymphoproliferative disease or any known malignancy or history of malignancy of any organ system within the past 5 years (except for basal cell carcinoma or actinic keratosis that have been treated with no evidence of recurrence in the past 3 months, non-invasive malignant colon polyps that have been removed).
Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Novartis Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Dana Farber Cancer Institute

Boston, Massachusetts, United States

Site Status RECRUITING

WA Uni School Of Med

St Louis, Missouri, United States

Site Status RECRUITING

Novartis Investigative Site

Darlinghurst, New South Wales, Australia

Site Status RECRUITING

Novartis Investigative Site

Herston, Queensland, Australia

Site Status RECRUITING

Novartis Investigative Site

São Paulo, São Paulo, Brazil

Site Status RECRUITING

Novartis Investigative Site

Wuhan, Hubei, China

Site Status RECRUITING

Novartis Investigative Site

Wuhan, Hubei, China

Site Status RECRUITING

Novartis Investigative Site

Nanjing, Jiangsu, China

Site Status RECRUITING

Novartis Investigative Site

Nanjing, Jiangsu, China

Site Status RECRUITING

Novartis Investigative Site

Chengdu, Sichuan, China

Site Status RECRUITING

Novartis Investigative Site

Beijing, , China

Site Status RECRUITING

Novartis Investigative Site

Shanghai, , China

Site Status RECRUITING

Novartis Investigative Site

Tianjin, , China

Site Status RECRUITING

Novartis Investigative Site

Petah Tikva, , Israel

Site Status RECRUITING

Novartis Investigative Site

Ramat Gan, , Israel

Site Status RECRUITING

Novartis Investigative Site

Tel Aviv, , Israel

Site Status RECRUITING

Novartis Investigative Site

Kashiwa, Chiba, Japan

Site Status RECRUITING

Novartis Investigative Site

Sapporo, Hokkaido, Japan

Site Status RECRUITING

Novartis Investigative Site

Kobe, Hyōgo, Japan

Site Status RECRUITING

Novartis Investigative Site

Kanazawa, Ishikawa-ken, Japan

Site Status RECRUITING

Novartis Investigative Site

Yokohama, Kanagawa, Japan

Site Status RECRUITING

Novartis Investigative Site

Kyoto, , Japan

Site Status RECRUITING

Novartis Investigative Site

Singapore, , Singapore

Site Status RECRUITING

Novartis Investigative Site

Singapore, , Singapore

Site Status RECRUITING

Novartis Investigative Site

Seoul, , South Korea

Site Status RECRUITING

Novartis Investigative Site

Seoul, , South Korea

Site Status RECRUITING

Novartis Investigative Site

Taipei, , Taiwan

Site Status RECRUITING

Novartis Investigative Site

Taipei, , Taiwan

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

United States Australia Brazil China Israel Japan Singapore South Korea Taiwan

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Novartis Pharmaceuticals

Role: CONTACT

Phone: 1-888-669-6682

Email: [email protected]

Novartis Pharmaceuticals

Role: CONTACT

Phone: +41613241111

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Jenna Baumeister

Role: primary

Ashley Murray

Role: primary

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2024-512342-42-00

Identifier Type: OTHER

Identifier Source: secondary_id

CAAA817A12201

Identifier Type: -

Identifier Source: org_study_id