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Prostate CancerPhase 2NCT03356444

Docetaxel Versus Abiraterone as First-line Treatment in mCRPC Patients With Intraductal Carcinoma of the Prostate

A Phase 2 study testing Abiraterone Acetate and Docetaxel in people with Prostate Cancer and Castration-resistant Prostate Cancer, run by West China Hospital.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 40 years and older, men only
What is being tested?
Abiraterone Acetate and Docetaxel
Could I receive a placebo?
No, everyone receives an active treatment
How many people
140 participants
Where
No sites listed yet
Study dates
Nov 2017to Dec 2020
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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
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  • 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.

Who cannot join

  • 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
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  • 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.

About this study

Official title: 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.

Being tested
Abiraterone Acetate, Docetaxel
Keywords
abiraterone, docetaxel, Castration-resistant Prostate Cancer
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Abiraterone AcetateDrug

    Abiraterone Acetate: orally, 1000mg, qd, plus with prednisone orally, 5mg, bid. Course of treatment: Stop the treatment until biochemical, clinical or radiographic progression occurs.

  • DocetaxelDrug

    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

Study groups in NCT03356444
Study groupRoleWhat they receive
Abiraterone groupExperimentalAbiraterone acetate is administered in this arm.
Receives: Drug: Abiraterone Acetate
Docetaxel groupActive comparatorDocetaxel is administered in this arm.
Receives: Drug: Docetaxel

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. PSA-Progression free survival (PSA-PFS)

    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.

    Measured: Up to 40 months

  2. Radiographic progression free survival (rPFS)

    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.

    Measured: Up to 40 months

Secondary outcomes (3)
  1. PSA response rate

    PSA response is defined as ≥ 50% decline in PSA level from baseline, maintained for≥ 4 weeks

    Measured: Up to 40 months

  2. Overall survival (OS)

    OS was defined as the duration from the initiation of treatment to death of any cause

    Measured: Up to 40 months

  3. Eastern Cooperative Oncology Group (ECOG) score

    0 - Fully active, able to carry on all pre-disease performance without restriction;

    1. - Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, e.g. light house work, office work;
    2. - Ambulatory and capable of all self-care but unable to carry out any work activities. Up and about more than 50% of waking hours;
    3. - Capable of only limited self-care, confined to bed or chair more than 50% of waking hours;
    4. - Completely disabled. Cannot carry out on any self-care; totally confined to bed or chair.

    Measured: Up to 40 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Nov 2017
  2. Study startNov 2017 (estimated)
  3. Primary completionDec 2020 (estimated)
  4. Study completionDec 2020 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
140 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03356444
Sponsor's protocol ID
2017-16
Status last verified
Nov 2017
First submitted
9 Nov 2017
Last updated
29 Nov 2017
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Abiraterone Acetate and Docetaxel in people with Prostate Cancer and Castration-resistant Prostate Cancer, run by West China Hospital.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 29 Nov 2017. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

PSA-Progression free survival (PSA-PFS) (time frame: Up to 40 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Nov 2017.

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