- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03356444
Docetaxel Versus Abiraterone as First-line Treatment in mCRPC Patients With Intraductal Carcinoma of the Prostate
The Evaluation of First-line Treatment Efficacy of Docetaxel and Abiraterone in Metastatic Castration-resistant Prostate Cancer Patients With Intraductal Carcinoma of the Prostate and the Exploration of the Genes Related to Treatment Effect
Metastatic castration-resistant Prostate cancer (mCRPC) is a very late stage of prostate cancer with poor prognosis. Although there are several treatment strategies available for mCRPC, these drugs are not always effective for every patient. Also, it's still not clear what's the best therapeutic choice for a certain group of patients.
In the previous works of the investigators, a subtype of prostate cancer, intraductal carcinoma of the prostate (IDC-P) was studied. The investigators have reported in their two published papers that, IDC-P is an adverse pathological type associated with rapid disease progression. They also found in another study that, for patients with IDC-P, Abiraterone seemed to have better treatment efficacy than Docetaxel-based chemotherapy as first-line treatment for mCRPC, in terms of either PSA-response and PSA-progression free survival. So, in this study, the investigators hope to design a prospective study to verify the predictive ability of IDC-P in the first-line treatment of mCRPC.
With disease progression, the drug resistance will inevitably occur in all patients after the treatment of CRPC. However, the exact mechanism of this process is not yet known. So, in this study the investigators are also trying to explore some of the genes related to the treatment efficacy by means of the next generation sequencing.
Study Overview
Status
Intervention / Treatment
Study Type
Enrollment (Anticipated)
Phase
- Phase 2
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age: ≥40 years old
- Positive IDC-P status confirmed by pathological examination.
- Bone or visceral metastatic disease confirmed by image examination.
- Castration resistant confirmed according to the criteria of 2014 EAU guidelines.
- The ECOG score of the patient is ≤1
- Expected survival over 3 months
- Blood routine test: neutrophil ≥1.5 × 10^9, platelets >100 × 10^9 and hemoglobin ≥90g/L
- Blood biochemical indexes: bilirubin≤1.5×Upper limit of normal; AST≤2.5×Upper limit of normal; serum creatinine≤1.5×Upper limit of normal; serum calcium≤12.0mg/dL.
- Coagulation function: Prothrombin time ≤1.5×Upper limit of normal
- The following diseases were not found within 12 months: myocardial infarction, severe or unstable angina pectoris, asymptomatic heart failure, cardiovascular and cerebrovascular accident or transient ischemic attack, etc.
- All patients should sign informed consent.
Exclusion Criteria:
- Patients who had other types of cancer besides prostate cancer were excluded.
- Patients With non-acinar adenocarcinoma except intraductal carcinoma of the prostate, including ductal adenocarcinoma, neuroendocrine carcinoma or small cell carcinoma of the prostate.
- Prior chemotherapy or abiraterone for the treatment of mCRPC.
- Patients with renal decompensation requiring hemodialysis or peritoneal dialysis.
- Patients with severe active clinical infection
- Patients with coagulopathy or bleeding
- Patients who received major surgery or severe trauma within the first 4 weeks before admission.
- Patients with a history of allogeneic organ transplantation or bone marrow transplantation
- Patients with known or suspected allergy to research drugs.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Abiraterone group
Abiraterone acetate is administered in this arm.
|
Abiraterone Acetate: orally, 1000mg, qd, plus with prednisone orally, 5mg, bid.
Course of treatment: Stop the treatment until biochemical, clinical or radiographic progression occurs.
|
ACTIVE_COMPARATOR: Docetaxel group
Docetaxel is administered in this arm.
|
Docetaxel: intravenously, 75 mg/m^2, over 1 h every 3 weeks, plus with prednisone, orally, 10 mg, qd. Course of treatment: Stop the treatment until biochemical, clinical or radiographic progression occurs. If no progression, stop until 10 cycles of traetment |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
PSA-Progression free survival (PSA-PFS)
Time Frame: Up to 40 months
|
PSA progression was defined as an increase in the PSA level of 25% or more above the nadir (and by ≥ 2 ng/ml), with confirmation of 4 or more weeks later.
|
Up to 40 months
|
Radiographic progression free survival (rPFS)
Time Frame: Up to 40 months
|
rPFS was defined 1) according to the Response Evaluation Criteria in Solid Tumors (RECIST) v.1.1 criteria; or 2) as at least two new lesions on first post-treatment bone scan, with at least two additional lesions on the next bone scan.
|
Up to 40 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
PSA response rate
Time Frame: Up to 40 months
|
PSA response is defined as ≥ 50% decline in PSA level from baseline, maintained for≥ 4 weeks
|
Up to 40 months
|
Overall survival (OS)
Time Frame: Up to 40 months
|
OS was defined as the duration from the initiation of treatment to death of any cause
|
Up to 40 months
|
Eastern Cooperative Oncology Group (ECOG) score
Time Frame: Up to 40 months
|
0 - Fully active, able to carry on all pre-disease performance without restriction;
|
Up to 40 months
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (ANTICIPATED)
Primary Completion (ANTICIPATED)
Study Completion (ANTICIPATED)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Neoplasms by Histologic Type
- Neoplasms
- Urogenital Neoplasms
- Neoplasms by Site
- Adenocarcinoma
- Carcinoma
- Neoplasms, Glandular and Epithelial
- Genital Neoplasms, Male
- Prostatic Diseases
- Carcinoma in Situ
- Neoplasms, Ductal, Lobular, and Medullary
- Breast Carcinoma In Situ
- Prostatic Neoplasms
- Carcinoma, Intraductal, Noninfiltrating
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Enzyme Inhibitors
- Antineoplastic Agents
- Tubulin Modulators
- Antimitotic Agents
- Mitosis Modulators
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Cytochrome P-450 Enzyme Inhibitors
- Hormone Antagonists
- Steroid Synthesis Inhibitors
- Docetaxel
- Abiraterone Acetate
Other Study ID Numbers
- 2017-16
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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