Completed

Phase II Study of a Weekly Schedule of BMS-247550 for Patients With Hormone Refractory Prostate Cancer

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What is being tested

ixabepilone

Drug
Who is being recruted

Urogenital Diseases
+7

+ Genital Diseases
+ Genital Diseases, Male
Over 18 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 2
Interventional
Study Start: September 2004
See protocol details

Summary

Principal SponsorNational Cancer Institute (NCI)
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner
Study start date: September 1, 2004Actual date on which the first participant was enrolled.

PRIMARY OBJECTIVE: I. To determine the effect on percent with a 50% decrease in PSA response in patients with metastatic prostate cancer who have progressed on androgen ablation therapy and are classified into 1 of 3 separate categories: 1. Never received prior chemotherapy/cytotoxic therapy 2. Received prior taxane-based regimen 3. Received 2 prior cytotoxic chemotherapy regimens (including, but not limited to, prior taxane and anthracyclines) SECONDARY OBJECTIVES: I. Determine measurable disease response in patients with measurable disease treated with this drug and overall response rate. II. Determine the toxic effects of this drug in these patients. III. Determine the duration of PSA and measurable disease response in patients treated with this drug. IV. Determine the expression of p53, multidrug resistance protein, and Bcl-2 by immunohistochemistry in the primary tumors of patients treated with this drug. OUTLINE: This is a multicenter study. Patients are stratified according to prior chemotherapy (none vs 1 prior taxane-containing regimen vs 2 prior cytotoxic regimens). Patients receive ixabepilone IV over 1 hour on days 1, 8, and 15. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients are followed every 3 months for 2 years and then every 6 months for 3 years.

Official TitlePhase II Study of a Weekly Schedule of BMS-247550 for Patients With Hormone Refractory Prostate Cancer 
NCT00087139
Principal SponsorNational Cancer Institute (NCI)
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details
124 patients to be enrolledTotal number of participants that the clinical trial aims to recruit.
Treatment Study
These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.

How participants are assigned to different groups/arms
In this clinical study, all participants receive the same treatment. Since there is only one group, there is no need for randomization or assignment to different arms. This type of study is often used to test a new treatment without comparing it to another.

Other Ways to Assign Participants
Randomized allocation
: Participants are assigned randomly, like flipping a coin, to ensure fairness and reduce bias.

Non-randomized allocation
: Participants are assigned based on specific factors, such as their medical condition or a doctor's decision.

How treatments are given to participants
In this study, all participants receive the same treatment. This approach is often used to evaluate the effects of a single intervention without comparing it to another.

Other Ways to Assign Treatments
Parallel assignment
: Participants are split into separate groups, each receiving a different treatment.

Cross-over assignment
: Participants switch between treatments during the study.

Factorial assignment
: Participants receive different combinations of treatments.

Sequential assignment
: Participants receive treatments one after another in a specific order, possibly based on individual responses.

Other assignment
: Treatment assignment does not follow a standard or predefined design.

How the effectiveness of the treatment is controlled
In a non placebo-controlled study, no participants receive an inert substance (placebo) to compare outcomes. Instead, all participants receive either the experimental treatment or an alternative treatment (often the Standard of Care). This method allows researchers to compare the effects of the experimental treatment with those of a different active intervention, rather than a placebo.

Other Options
Placebo-Controlled
: A placebo is used to compare the effects of the experimental treatment with those of an inert substance, isolating the true treatment effect.

How the interventions assigned to participants is kept confidential
Everyone involved in the study knows which treatment is being given. This is typically used when it's not possible or necessary to hide the treatment details from participants or researchers.

Other Ways to Mask Information
Single-blind
: Participants do not know which treatment they are receiving, but researchers do.

Double-blind
: Neither participants nor researchers know which treatment is given.

Triple-blind
: Participants, researchers, and outcome assessors do not know which treatment is given.

Quadruple-blind
: Participants, researchers, outcome assessors, and care providers all do not know which treatment is given.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria
MaleBiological sex of participants that are eligible to enroll.
Over 18 YearsRange of ages for which participants are eligible to join.
Healthy volunteers not allowedIf individuals who are healthy and do not have the condition being studied can participate.
Conditions
Pathology
Urogenital Diseases
Genital Diseases
Genital Diseases, Male
Genital Neoplasms, Male
Neoplasms
Neoplasms by Site
Prostatic Diseases
Prostatic Neoplasms
Urogenital Neoplasms
Male Urogenital Diseases
Criteria

Inclusion Criteria: * Histologically confirmed adenocarcinoma of the prostate * Metastatic disease * Evidence of disease progression (e.g., new lesions on bone scan or new/enlarging lesions on CT scan) OR rising prostate-specific antigen (PSA) within the past 4 weeks * Radiologic evidence of hydronephrosis alone is not considered evidence of metastatic disease (e.g., increasing PSA) * Patients with bone metastases only (i.e., lacking soft tissue disease) must have a PSA level \>= 10 ng/mL within the past week * Patients with stable disease and rising PSA must show 2 consecutive rises in PSA measurements taken at least 2 weeks apart * Most recent PSA level must be obtained within the past 4 weeks * Disease progression after prior anti-androgen withdrawal must be confirmed by a rising PSA after the 4-6 week washout period (e.g., PSA level higher than the last PSA obtained while on anti-androgen therapy) * Failed prior bilateral orchiectomy or other primary hormonal therapy * Patients who have not undergone bilateral orchiectomy must continue on luteinizing hormone-releasing hormone (LHRH) agonist therapy (e.g., leuprolide or goserelin) or LHRH antagonist (e.g., abarelix) during study treatment AND must have a serum testosterone level =\< 50 ng/dL within the past 4 weeks to confirm androgen suppression * ECOG 0-2 * Granulocyte count \>= 1,500/mm\^3 * Platelet count \>= 100,000/mm\^3 * WBC \>= 4,000/mm\^3 * SGPT =\< 2 times upper limit of normal * Bilirubin =\< 1.5 mg/dL * INR normal * Creatinine =\< 1.5 mg/dL * Creatinine clearance \>= 50 mL/min * No New York Heart Association class III-IV heart disease * No myocardial infarction within the past 6 months * No active angina pectoris * No evidence of ventricular dysrhythmias or other unstable arrhythmia * Rate-controlled atrial fibrillation allowed provided the patient is asymptomatic * No other malignancy within the past 5 years except curatively treated nonmelanoma skin cancer * No serious medical illness or active infection that would preclude study participation * No concurrent prophylactic filgrastim (G-CSF) * No more than 2 prior cytotoxic chemotherapy regimens for hormone-refractory disease * At least 4 weeks since prior chemotherapy with a taxane-based regimen, mixantrone, or another cytotoxic chemotherapy regimen provided there is evidence of progressive disease * At least 4 weeks since prior flutamide AND continued evidence of progressive disease * At least 6 weeks since prior bicalutamide or nilutamide AND continued evidence of progressive disease * At least 4 weeks since prior estrogen or estrogen-like agents (e.g., PC-SPES, saw palmetto, or other herbal products which may contain phytoestrogens) * At least 4 weeks since prior hormonal therapy, including megestrol, finasteride, ketoconazole, or systemic corticosteroids * No concurrent estrogen or estrogen-like agents (e.g., PC-SPES, saw palmetto, or other herbal products which may contain phytoestrogens) * More than 4 weeks since prior radiotherapy * No prior strontium chloride Sr 89 or samarium Sm 153 lexidronam pentasodium * No other prior radioisotope * No concurrent radiotherapy for pain control * No more than 1 prior experimental (non-cytotoxic) therapy AND evidence of progressive disease * At least 4 weeks since prior experimental therapy * Concurrent bisphosphonates (e.g., pamidronate or zoledronate) allowed provided treatment was initiated at least 4 weeks ago and there is evidence of progressive disease * No other concurrent investigational agents * No concurrent therapeutic warfarin * Concurrent prophylactic or therapeutic doses of low molecular weight heparin allowed provided criterion for INR is met * No carcinomatous meningitis or brain metastases * Fertile patients must use effective contraception * No peripheral neuropathy \> grade 1

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives
One single intervention group 

is designated in this study

This study does not include a placebo group 

Treatment Groups
Group I
Experimental
Patients are stratified according to prior chemotherapy (none vs 1 prior taxane-containing regimen vs 2 prior cytotoxic regimens). Patients receive ixabepilone IV over 1 hour on days 1, 8, and 15. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.

Given IV
Study Objectives
Primary Objectives

PSA response is defined as a decline from baseline value by \>=50%, or normalization of PSA (PSA \< 0.2 ng/lm), confirmed by a second measurement \>= 4 weeks later. The proportion of patients with PSA response was reported separately for 3 strata. Additional patients accrued to this study were not included in this analysis.
Secondary Objectives

Only patients with measurable disease were included in this analysis. The proportion of patients with measurable disease response (based on RECIST: Response Evaluation Criteria in Solid Tumors) was reported separately for 3 strata. Per RECIST criteria, Complete response (CR)= disappearance of all target and nontarget lesions Partial response (PR)= \>=30% decrease in the sum of the longest diameters of target lesions from baseline, and persistence of one or more non-target lesion(s) and/or the maintenance of tumor marker level above the normal limits. Objective response = CR + PR

Duration of PSA response was defined as the time from the date of onset of PSA response until the date the criteria were met for PSA progression. Only patients with a PSA response were included in this analysis. The results were reported separately for 3 strata.

Duration of measurable disease response was defined as the time from the date when measurement criteria were met for complete or partial response, whichever status was recorded first, until the first date that recurrent or progressive disease was objectively documented based on RECIST (Response Evaluation Criteria in Solid Tumors). Only patients with measurable disease response were included in this analysis.

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.
This study has 162 locations
Suspended
The Medical Center of AuroraAurora, United StatesSee the location
Suspended
Boulder Community HospitalBoulder, United States
Suspended
Penrose-Saint Francis HealthcareColorado Springs, United States
Suspended
Porter Adventist HospitalDenver, United States
Completed162 Study Centers