ClinicalTrials.gg
RecruitingNCT06801236Updated Sep 25, 2026

Phase 1 Study of ACE-232 to Treat Patients With Metastatic Castration-Resistant Prostate Cancer

A Phase 1 interventional study of ACE-232 tablets in Prostate Cancer (Adenocarcinoma) and mCRPC (Metastatic Castration-resistant Prostate Cancer), sponsored by Acerand Therapeutics (Hong Kong) Limited. Recruiting at 13 sites in 2 countries. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-25.

Sponsored by Acerand Therapeutics (Hong Kong) Limited · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Started May 2025; still recruiting 1 year 6 months later.
Updated Sep 25, 20264 sites addedGo to Updates ↓
Phase
Phase 1
Study type
Interventional
Enrollment
88
Allocation
Not applicable
Ages
18 Years and older
Sex
Male
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 3,595 studies in Prostatic Neoplasms with a site in United States — 607 open to participants now, 977 under way, 101 of them phase 3. Prostatic Neoplasms · United States.

Planned enrollment
1,019th of 3,023
88 · median 48
Started
2025
with 160 others
Phase 1
615 of 3,595
83 open now
Primary completion
2028-12
later than 748 of 971 live
Registered
3,311th of 3,595
by date

Among the 3,595 studies in Prostatic Neoplasms with a site in United States, this one is the 1,019th largest by planned enrollment of the 3,023 interventional ones that give a count, is one of 161 that started in 2025, is one of 615 in phase 1, reaches primary completion later than 748 of the 971 other live ones, and was the 3,311th registered.

Prostatic Neoplasms

7,046 studies on the registry are indexed under Prostatic Neoplasms; 1,580 are open to participants now.

Browse Prostatic Neoplasms studies →

Open to participants now

607 of the 3,595 studies in Prostatic Neoplasms with a site in United States are open now. Recruiting first, the newest first:

602 more — sign in →

All 607 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 1,228 Prostatic Neoplasms studies recruiting now, 928 (76%) set no upper age limit and 76 (6%) stop at 75 or younger; 67 take children under 18; 82 take healthy volunteers.

This study: 18 Years and older · male · no healthy volunteers.

The full table on the hub →

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02

Study 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).

Read the detailed description

The study consists of two parts, Phase 1A dose escalation and Phase 1B dose optimization. Phase 1A aims to assess the safety, tolerability, pharmacokinetic (PK) profile, and changes in pharmacodynamic (PD) markers in patients treated with ACE-232, and to determine the maximum tolerated dose (MTD), if applicable. In Phase 1B, patients with AR gene alterations will be treated at two different dose levels to establish the recommended Phase 2 dose (RP2D).

03

Conditions studied

  • Prostate Cancer (Adenocarcinoma)
  • mCRPC (Metastatic Castration-resistant Prostate Cancer)

Keywords

  • ACE-232
  • castration-resistant prostate cancer
  • CRPC
  • Hormone Antagonists
  • Hormone Substitutes
  • Antineoplastic Agents
  • Prostatic Neoplasms
  • Castration-Resistant
  • prostate cancer
  • CYP11A1
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Provide written
  • 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 treatment;
  • Has (ECOG) performance status of 0 or 1
  • Has a of at least 6 months
  • Adequate organ function and bone marrow function

Exclusion criteria

Exclusion Criteria:

  • Receiving any anti-cancer drugs or other treatment, major surgery, extensive radiation therapy, or local radiation therapy within protocol-defined ;
  • Concomitant use of medications or herbal supplements known to be moderate to strong inhibitors/inducers, or P-gp inhibitors, known to prolong the .
  • Any previous treatment-related toxicities have not recovered.
  • Spinal cord compression or known or .
  • 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 disease
  • Active infections, or a known history of infection, or a known active or C, or a known active tuberculosis.
  • Other requiring treatment within 3 years prior to the first dose of study drug
  • Known allergy or to any of the of ACE-232.
  • Has other medical conditions that at the discretion of the investigator interfere with safety or efficacy evaluation, or treatment compliance.
Terms in these criteria, in plain language(16)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

CYP3A (CYP3A4) inhibitors and inducers

CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.

Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
88 participants (estimated)

Study arms

  • Experimental
    ACE-232

    Administered once daily (QD) continuously at the assigned dose level in accordance with the standard 3+3 dose-escalation scheme

    Drug: ACE-232 tablets

Interventions

  • DrugACE-232 tablets

    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.

06

What researchers measure

Primary outcomes

  1. 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.

    Time frame: From time of information consent to 30 days post last dose, up to approximately 37 months

  2. 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.

    Time frame: 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)

  3. 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.

    Time frame: Up to approximately 37 months

Secondary outcomes

  1. Pharmacokinetics characterization by using Area under the plasma concentration versus time curve (AUC)

    To determine the pharmacokinetics (PK) using AUC of ACE-232 after a single dose and at steady state after multiple doses.

    Time frame: Up to approximately 37 months

  2. Pharmacokinetics characterization by using Maximum concentration (Cmax)

    To determine the pharmacokinetics (PK) using Cmax of ACE-232 after a single dose and at steady state after multiple doses

    Time frame: Up to approximately 37 months

  3. Prostate Specific Antigen (PSA) response

    PSA response is defined as PSA decline of 30% and 50% from baseline at any time point

    Time frame: Up to approximately 37 months

  4. Objective Response Rate (ORR)

    ORR is defined as a complete response (CR) or partial response (PR), as determined by the investigator using Response Evaluation Criteria in Solid Tumors (RECIST version 1.1) and Prostate Cancer Working Group Criteria 3 (PCWG3 criteria), in patients with measurable disease at baseline.

    Time frame: Up to approximately 37 months

  5. Duration of Response (DoR)

    DOR is defined, for patients with an objective response, as the time from first documentation of objective tumor response (CR or PR) to the first documentation of objective tumor progression or death due to any cause.

    Time frame: Up to approximately 37 months

  6. Radiographic Progression Free Survival (rPFS)

    rPFS is defined as the time from the first dose of ACE-232 to the first documented disease progression by either RECIST progression and/or progression on bone scan by PCWG3 or death due to any cause, whichever occurs first.

    Time frame: Up to approximately 37 months

  7. Overall Survival (OS)

    OS is defined as the time from the first dose of ACE-232 to the date of death due to any cause.

    Time frame: Up to approximately 37 months

  8. Blood concentration of steroid hormone

    To determine the blood concentration of steroid hormones at various timepoints and change from baseline

    Time frame: Up to approximately 37 months

Other outcomes

  1. Gene aberrations

    To determine the gene aberrations in circulating tumor DNA (ctDNA), and its association with tumor response or resistance to ACE-232

    Time frame: Up to approximately 37 months

07

Study locations

8 of 13 sites recruiting
08

References and documents

Individual participant data

Plan to share: No — No IPD sharing plan at this moment, which might be changed during the study process or when the results come out.

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started May 2025 (actual). Primary completion is estimated for Dec 2028, 43 months after the start.

Of 212 industry-sponsored phase 1 interventional studies under Prostatic Neoplasms, half reached primary completion within 37 months of starting (the median), counting those still running; a quarter within 20 and three quarters within 62. This study's planned 43 months is above that.

Counting every sponsor, half of 455 studies reached it within 43 months; a quarter within 23 and three quarters within 68.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 19, 2025
First posted
Jan 30, 2025
StartActual
May 12, 2025
Primary completionEst.
Dec 31, 2028
CompletionEst.
Dec 31, 2028
Last update
Sep 25, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Sites
4 sites added
Show 4 added (4 China)
  • Beijing Gobroard Hospital · Beijing, China
  • Zhejiang Cancer Hospital · Hangzhou, China
  • Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine · Shanghai, China
  • Henan Cancer Hospital · Zhengzhou, China
Sep 25, 2026
Show all 1 update
  1. Sep 25, 2026
    4 sites added
    Show 4 added (4 China)
    • Beijing Gobroard Hospital · Beijing, China
    • Zhejiang Cancer Hospital · Hangzhou, China
    • Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine · Shanghai, China
    • Henan Cancer Hospital · Zhengzhou, China
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT06801236
Lead sponsor
Acerand Therapeutics (Hong Kong) Limited
Responsible party
Sponsor
First posted
Jan 30, 2025
Start date
May 12, 2025
Primary completion
Dec 31, 2028 (estimated)
Completion
Dec 31, 2028 (estimated)
Last update
Sep 25, 2026

Study contacts

Derek Yang, MD
Contact
derek.yang@acerand.com
86-13817816369
Teresa Shi, MS
Contact
teresa.shi@acerand.com
86-13916513539
Derek Yang, MD
study director · Acerand Therapeutics

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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