A Study Evaluating the Clinical Benefit of Adding Custirsen to Docetaxel Retreatment/Prednisone as Second Line Therapy in Men With Castrate Resistant Prostate Cancer (CRPC)

2014-08-27 03:15:22 | BioPortfolio


The purpose of this study is to determine if the addition of study drug (custirsen) can provide durable pain palliation for castrate resistant prostate cancer patients receiving docetaxel/prednisone retreatment as a second line therapy.


This is a randomized, double-blind, placebo-controlled, multicenter, international trial enrolling patients with metastatic CRPC who had a response to first-line docetaxel therapy and have prostate cancer-related pain with progression of disease after completing first-line docetaxel therapy. The intended intervention is second-line treatment with docetaxel retreatment/prednisone plus study agent, where custirsen is to be administered in the investigational arm and placebo is to be administered in the control arm.

The study will primarily assess pain and analgesic use for evaluation of durable pain palliation in response to study treatment. Pain and analgesic use will be obtained via a 3rd party contact center (direct contact with patient).

Study treatment starts with a Loading Dose Period during which three infusions of study agent (custirsen vs. placebo) will be administered. Following the Loading Dose Period, study treatment will consist of docetaxel on a 21-day cycle with weekly study agent (custirsen vs. placebo) infusions on Day 1, 8 and 15 of each 21-day cycle and oral prednisone BID.

Patients will continue study treatment until pain progression, unacceptable toxicity, completion of 10 cycles or other specific criteria for withdrawal identified in the protocol. If study treatment is completed or discontinued prior to pain progression, 6-day assessments will continue every 3 weeks until pain progression is documented. Follow-up after study treatment will occur for safety parameters for 3 weeks after the last study agent infusion in all patients. Survival status updates are to be reported every 12 weeks following documentation of pain progression. The amount of time that patients remain on the study will vary; but the average survival of these patients who receive second line treatment with docetaxel is expected to be 14 to 15 months.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment


Castrate-Resistant Prostate Cancer


custirsen sodium, Isotonic, 0.9% sodium chloride


Achieve Clinical Research
United States




OncoGenex Technologies

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:15:22-0400

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