Phase 1 Study of ACE-232 to Treat Patients With Metastatic Castration-Resistant Prostate Cancer
A Phase 1 Study to Assess the Safety, Pharmacokinetics, Pharmacodynamics, and Preliminary Efficacy of ACE-232 in Patients With Metastatic Castration-Resistant Prostate Cancer (CRPC)
1 other identifier
interventional
67
1 country
8
Brief Summary
This is an open label, phase I, multi-center study aiming to assess the safety and tolerability in patients with metastatic castration resistant prostate cancer (mCRPC).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started May 2025
Typical duration for phase_1
8 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 19, 2025
CompletedFirst Posted
Study publicly available on registry
January 30, 2025
CompletedStudy Start
First participant enrolled
May 12, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 1, 2028
April 9, 2026
December 1, 2025
2.8 years
January 19, 2025
April 8, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Number of patients experiencing adverse events (AEs)/serious adverse events (SAEs)
Number of patients with incidence of adverse events and with serious adverse events including changes from baseline in laboratory parameters, vital signs, ECGs, and physical examination, etc.
From time of information consent to 30 days post last dose, up to approximately 37 months
Number of patients experiencing dose limiting toxicity (DLT), as defined in the protocol
A DLT is defined as any toxicity events related to ACE-232 that occur from the first dose of study treatment until the planned end date of Cycle 1 (DLT assessment period), meeting the criteria specified in protocol.
From the first dose of ACE-232 on Cycle 1 Day 1 up to and including the planned end of Cycle 1 (at the end of 28 days)
Recommended Phase 2 dose (RP2D) and/or maximum tolerated dose (MTD)
RP2D will be finally determined by the SMC and sponsor based on all data from the dose escalation module and backfill module, as well as the exposure-response relationship evaluated (if available). MTD is defined as the maximum dose level at which ≤1 patient have DLTs during the DLT observation period, and it should be determined with 6 evaluable patients.
Up to approximately 37 months
Secondary Outcomes (8)
Pharmacokinetics characterization by using Area under the plasma concentration versus time curve (AUC)
Up to approximately 37 months
Pharmacokinetics characterization by using Maximum concentration (Cmax)
Up to approximately 37 months
Prostate Specific Antigen (PSA) response
Up to approximately 37 months
Objective Response Rate (ORR)
Up to approximately 37 months
Duration of Response (DoR)
Up to approximately 37 months
- +3 more secondary outcomes
Other Outcomes (1)
Gene aberrations
Up to approximately 37 months
Study Arms (1)
ACE-232
EXPERIMENTALInterventions
ACE-232 tablets will be administered orally daily as a continuous regimen together with Dexamethasone and Fludrocortisone. Subjects will continue to receive study treatment until PD as judged by local investigator review, development of unacceptable toxicity, or withdrawal of consent.
Eligibility Criteria
You may qualify if:
- Provide written informed consent
- Metastatic Castration-resistant Prostate Cancer with ongoing androgen - deprivation therapy (ADT) or have bilateral orchiectomy
- Difficult to treat or intolerant to standard treatment (post at least 1 line of NHA and taxane-based chemo in mHSPC or mCRPC), suitable for investigational treatment;
- Has Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
- Has a life expectancy of at least 6 months
- Adequate organ function and bone marrow function
You may not qualify if:
- Receiving any anti-cancer drugs or other treatment, major surgery, extensive radiation therapy, or local radiation therapy within protocol-defined wash-out period;
- Concomitant use of medications or herbal supplements known to be moderate to strong CYP3A4 inhibitors/inducers, or P-gp inhibitors, known to prolong the QT interval.
- Any previous treatment-related toxicities have not recovered.
- Spinal cord compression or known brain metastases or leptomeningeal carcinomatosis.
- Severe cardiovascular disorders.
- Known gastrointestinal (GI) disorder or GI procedure
- History of gastric and duodenal perforation.
- History of pituitary dysfunction.
- Poorly controlled diabetes mellitus.
- Active or uncontrolled autoimmune disease
- Active infections, or a known history of HIV infection, or a known active hepatitis B or C, or a known active tuberculosis.
- Other malignancies requiring treatment within 3 years prior to the first dose of study drug
- Known allergy or hypersensitivity to any of the excipients of ACE-232.
- Has other medical conditions that at the discretion of the investigator interfere with safety or efficacy evaluation, or treatment compliance.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (8)
University of California San Diego, Moores Cancer Center
La Jolla, California, 92093, United States
Moffitt Cancer Center, Tampa
Tampa, Florida, 33612, United States
University of Maryland, Greenebaum Comprehensive Cancer Center
Baltimore, Maryland, 21201, United States
Harvard Medical School-Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
M Health Fairview Clinics and Surgery Center
Minneapolis, Minnesota, 55455, United States
Xcancer (Urology Cancer Center)
Omaha, Nebraska, 68130, United States
Carolina Urologic Research Center
Myrtle Beach, South Carolina, 29572, United States
Fred Hutchinson Cancer Research Center
Seattle, Washington, 98109, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 19, 2025
First Posted
January 30, 2025
Study Start
May 12, 2025
Primary Completion (Estimated)
March 1, 2028
Study Completion (Estimated)
August 1, 2028
Last Updated
April 9, 2026
Record last verified: 2025-12
Data Sharing
- IPD Sharing
- Will not share
No IPD sharing plan at this moment, which might be changed during the study process or when the results come out.