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Dalpiciclib Isethionate Tablets Combined With Abiraterone Acetate Tablets (I) and Prednisone Tablets (AA-P) Versus Placebo Combined With AA-P in Treatment of High-volume, Metastatic, Hormone-sensitive Prostate Cancer (mHSPC)

Phase 1
Not yet recruiting
Conditions
High-volume, Metastatic, Hormone-sensitive Prostate Cancer (mHSPC)
Interventions
Registration Number
NCT06099990
Lead Sponsor
Jiangsu HengRui Medicine Co., Ltd.
Brief Summary

This study was to evaluate the safety and efficacy of dalcilide tablets in combination with AA-P in the treatment of subjects with high tumor burden mHSPC and to determine the second stage starting dose and progression-free survival(rPFS) based on BICR assessment

Detailed Description

Not available

Recruitment & Eligibility

Status
NOT_YET_RECRUITING
Sex
Male
Target Recruitment
660
Inclusion Criteria
  1. Age of ≥ 18 years old,male
  2. ECOG PS score of 0 or 1;
  3. Prostate adenocarcinoma confirmed by histological。
  4. ADT no more than 3 months prior to randomization (when docetaxel is not used) with no radiographic or PSA progression
  5. Receiving or maintaining androgen deprivation therapy (ADT) during the planned study period, i.e. continuous treatment with luteinizing hormone-releasing hormone analogues (LHRHA) (drug castration) or prior bilateral orchiectomy (surgical castration)
  6. Voluntarily participate in this clinical trial, understand the study procedure and have signed informed consent
Exclusion Criteria
  1. Previous ADT, chemotherapy, surgery, external radiation exposure, brachytherapy, radiopharmaceuticals, or experimental topical treatments (eg, radiofrequency ablation, cryoponic, high-energy focused ultrasound) for prostate cancer
  2. Previous use of CDK4/6 inhibitors (such as piperaciclib, rebocillib and abeceptil), second-generation androgen receptor antagonists (such as enzalutamide, apatamide, darotamide, revilumide and proclomide, etc.), ketoconazole, abiraterone acetate or other investigational drugs that inhibit androgen synthesis (such as TAK-700), other anti-tumor biological therapy, targeted therapy or tumor immunotherapy
  3. Confirmed by imaging, there are brain tumor foci
  4. History of severe lung disease such as interstitial pneumonia
  5. Plan to receive any other antitumor therapy during this trial
  6. Inability to swallow, chronic diarrhea and intestinal obstruction, or other factors that affect drug taking and absorption

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
placebo+abirarerone+prenisoneplacebo; abiraterone acetate tablets; prednisone tablets-
dalpiciclib+ abiraterone+ prednisonedalpiciclib isethionate tablets; abiraterone acetate tablets; prednisone tablets-
Primary Outcome Measures
NameTimeMethod
Adverse event (AE) incidenceapproximately 63 months
Secondary Outcome Measures
NameTimeMethod
PK: Steady-state trough concentrations of Dalsili and Abiraterone (Cmin, ss)approximately 6 months
PSA response rateapproximately 63 months

In patients who had not started androgen deprivation prior to randomization, the proportion of patients whose PSA levels were ≥ 90% lower than baseline by the end of the study treatment week

rPFSapproximately 63 months

Time from randomisation to radiologically confirmed progressive disease or death due to any cause

Time to PSA progressionapproximately 63 months

Time from randomisation to the first time of PSA progression

ORRapproximately 63 months

Objective response rate+ The proportion of participants evaluated according to RECIST v1.1 and PCWG3 criteria that achieved predetermined tumor volume reduction and maintained the minimum duration was the sum of the proportion of complete and partial responses

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