ClinicalTrials.gg
RecruitingNCT07657806Updated Oct 14, 2026

DEC003M in Prostate Cancer

A Phase 1 interventional study of DEC003M in Advanced Prostate Cancer, sponsored by Hangzhou DAC Biotechnology Co., Ltd.. Recruiting at 7 sites in China. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-14.

Sponsored by Hangzhou DAC Biotechnology Co., Ltd. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Started Aug 2026; still recruiting 2 months later.
Updated Oct 14, 2026Now RecruitingSite recruiting status changed+2 moreGo to Updates ↓
Phase
Phase 1
Study type
Interventional
Enrollment
110
Allocation
Not applicable
Ages
18 Years and older
Sex
Male
01

Study summary

This is an open-label, multicenter Phase 1 study of DEC003M, in patients with advanced stage prostate cancer. The study consists of a dose-escalation phase to determine the dose for expansion, followed by a dose-expansion phase to evaluate preliminary antitumor activity, safety, and pharmacokinetics.

02

Conditions studied

  • Advanced Prostate Cancer

Browse trials for

03

In context

Prostatic Neoplasms

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

This study's planned enrollment of 110 is above the median of 60 across 5,348 interventional studies indexed under Prostatic Neoplasms.

Browse Prostatic Neoplasms studies →

Lead sponsor

Hangzhou DAC Biotechnology Co., Ltd. is the lead sponsor of 6 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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

  1. At the time of , be ≥18 years of age.
  2. confirmed adenocarcinoma of the prostate.
  3. castration-resistant prostate cancer (mCRPC) with documented disease progression despite androgen deprivation therapy.
  4. Prior orchiectomy or medical castration, or continuous treatment with luteinizing hormone releasing hormone analogues (LHRHa) .
  5. prior to enrollment.
  6. Testosterone at castration level.
  7. Progressed on standard therapy, or intolerant to standard therapy, or ineligible for standard therapy, or no standard therapy available.
  8. At least 1 prior Androgen Receptor Pathway Inhibitor.
  9. (ECOG) performance status of 0 or 1.

Exclusion criteria

Exclusion Criteria:

  1. History of other .
  2. Inadequate organ function.
  3. Active disease.
  4. Active CNS involvement.
  5. Uncontrolled or cardiovascular and cerebrovascular diseases.
  6. Any prior medical history of ILD/pneumonitis.
  7. Clinically significant corneal disorder or known severe dry eye.
  8. Grade 2 or higher peripheral neuropathy.
  9. Inadequate for prior anticancer treatment.
  10. Any known history of or suspicion for history of clinically significant liver disease .
  11. Known to any component of the DEC003M.
  12. Prior treatment with a PSMA-targeted antibody therapy.
  13. Other conditions judged by the investigator that may have effects on the patient's participation in the study.
Terms in these criteria, in plain language(10)

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.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

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

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

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.

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.

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.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

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.

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.

05

Study design

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

Study arms

  • Experimental
    Experimental

    DEC003M-001

    Drug: DEC003M

Interventions

  • DrugDEC003M

    Once every 3 weeks (Q3W) with a cycle length of 21 days

06

What researchers measure

Primary outcomes

  1. Adverse event

    Time frame: Screening up to study completion, an average of 1 year.

  2. Dose-limiting toxicity (DLT)

    Time frame: 3 weeks

  3. Recommended Dose for Expansion (RDE)

    Time frame: Up to 24 months

Secondary outcomes

  1. Objective Response Rate(ORR)

    Time frame: Up to 24 months

  2. PSA response rate

    Time frame: Up to 24 months

  3. Radiographic Progression-Free Survival (rPFS)

    Time frame: Up to 24 months

  4. overall survival (OS)

    Time frame: Up to 36 months

07

Study locations

7 of 7 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

2 registry updates since Sep 25, 2026
Status
Not yet recruiting→Recruiting
changed Sep 25, 2026
Sites
3 sites added. 4 sites changed recruiting status (4 now recruiting)
Show 4 sites
  • West China Hospital of Sichuan University · Chengdu, Chinano status→Recruiting
  • The Third People's Hospital of Chengdu · Chengdu, Chinano status→Recruiting
  • The First Affiliated Hospital of Zhejiang University School of Medicine · Hangzhou, Chinano status→Recruiting
  • Chongqing University Cancer Hospital · Chongqing, Chinano status→Recruiting
Show 3 added (3 China)
  • Peking University First Hospital · Beijing, China
  • The Second Affiliated Hospital of Soochow University · Suzhou, China
  • The First Affiliated Hospital of Wenzhou Medical University · Wenzhou, China
across 2 updates, Sep 25, 2026 – Oct 14, 2026
Start date
Aug 1, 2026→Aug 19, 2026 (actual)
Sep 25, 2026
Show all 2 updates
  1. Oct 14, 2026
    3 sites added
    Show 3 added (3 China)
    • Peking University First Hospital · Beijing, China
    • The Second Affiliated Hospital of Soochow University · Suzhou, China
    • The First Affiliated Hospital of Wenzhou Medical University · Wenzhou, China
  2. Sep 25, 2026
    Not yet recruiting→Recruiting
    4 sites changed recruiting status (4 now recruiting)
    Show 4 sites
    • West China Hospital of Sichuan University · Chengdu, Chinano status→Recruiting
    • The Third People's Hospital of Chengdu · Chengdu, Chinano status→Recruiting
    • The First Affiliated Hospital of Zhejiang University School of Medicine · Hangzhou, Chinano status→Recruiting
    • Chongqing University Cancer Hospital · Chongqing, Chinano status→Recruiting
    Start date Aug 1, 2026→Aug 19, 2026 (now actual)
    + 2 other changes: verification date and oversight details

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
NCT07657806
Responsible party
Sponsor
First posted
Jun 18, 2026
Start date
Aug 19, 2026
Primary completion
Mar 31, 2029 (estimated)
Completion
May 1, 2031 (estimated)
Last update
Oct 14, 2026

Study contacts

Pengyu Shi
Contact
Shipengyu@dacbiotech.com
86-0571-56050590

Oversight

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

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