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Study on the efficacy and safety of abiraterone acetate tablets (II) + ADT + chemotherapy in first-line treatment of mCRPC

Study on the efficacy and safety of abiraterone acetate tablets (II) + ADT + chemotherapy in first-line treatment of mCRPC

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500111854
Enrollment
Unknown
Registered
2025-11-06
Start date
2025-11-11
Completion date
Unknown
Last updated
2025-11-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prostate Cancer

Interventions

Abiraterone Acetate (II) + ADT + Chemotherapy Group:ADT administration: Administer according to the standard dose of the selected drug
Abiraterone acetate tablets (II) administration: Orally, 300 mg once a day, combined with prednisone or prednisolone 5 mg orally twice a day
Docetaxel administration: Chemotherapy should be initiated within 4 weeks after the administration of ADT + abiraterone acetate tablets (II), via intravenous infusion, 75 mg/m2, once every three weeks

Sponsors

Affiliated Hospital of Guizhou Medical University
Lead Sponsor

Eligibility

Sex/Gender
Male
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Aged >= 18 years; 2. ECOG score of 0 or 1; 3. Prostate cancer confirmed by pathology or histocytology; 4. Patients with mCRPC who progressed after receiving novel endocrine therapy in the previous stage; 5. Bone metastases or metastases shown by CT/MRI scans, with acceptable visceral metastases; 6. Radiographic or PSA progression occurs during continuous androgen deprivation therapy (ADT) or after orchiectomy; 7. After achieving castration level with androgen deprivation therapy, prostate-specific antigen increases continuously for 3 times at an interval of 1 week, with an increase of > 50% compared with the lowest level; 8. Expected survival time of more than half a year; 9. Organ function levels must meet the following requirements (no blood transfusion or hematopoietic growth factor therapy within 2 weeks before blood routine screening): • ANC >= 1.5 × 10?/L; • PLT >= 100 × 10?/L; • Hb >= 90 g/L; • TBIL = 50%; • QTcF <= 450 ms. 10.Subjects whose partners are women of childbearing potential should be surgically sterilized or agree to use effective contraceptive methods during the study and within 3 months after the last drug treatment; 11.Subjects voluntarily participate in this study, sign the written informed consent form, and are expected to have good compliance with the study protocol.

Exclusion criteria

Exclusion criteria: Subjects with any of the following conditions are not eligible for enrollment in this study: 1. Previous chemotherapy for prostate cancer; 2. Patients who have progressed after previous abiraterone treatment; 3. Received other investigational drug treatments or major surgeries within 4 weeks before enrollment; 4. Presence of inability to swallow, chronic diarrhea, intestinal obstruction, or other factors affecting drug administration and absorption; 5. A history of epilepsy, or diseases that could induce epileptic seizures within 12 months before randomization (including a history of transient ischemic attack, stroke, or traumatic brain injury with disturbance of consciousness requiring hospitalization); 6. Presence of active heart disease within 6 months before randomization, including: severe/unstable angina pectoris, myocardial infarction, symptomatic congestive heart failure (NYHA class III or IV) and ventricular arrhythmias requiring drug treatment; 7. Patients with active HBV or HCV infection (HBsAg positive with viral load >= 500 IU/mL, HCV antibody positive with HCV RNA above the lower limit of detection of the analytical method); 8. Known history of allergy to the study drug or its components; 9. Complicated with other malignant tumors; 10. According to the investigator's judgment, there are concomitant diseases (such as poorly controlled hypertension, severe diabetes, neurological or psychiatric diseases, etc.) or any other conditions that seriously endanger the patient's safety, may confuse the study results, or affect the subject's completion of the study.

Design outcomes

Primary

MeasureTime frame
Radiographic Progression-Free Survival (rPFS);

Secondary

MeasureTime frame
PSA response rate; Overall survival (OS);Objective response rate (ORR);Quality of life ;Safety;

Countries

China

Contacts

Public ContactGe Huixin

Affiliated Hospital of Guizhou Medical University

34865852@qq.com+86 139 8552 0194

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026