Efficacy and Safety Study of Xyotax to Treat Prostate Cancer

This study has been completed.
Cellular Therapeutics
Information provided by:
The Methodist Hospital System
ClinicalTrials.gov Identifier:
First received: March 12, 2007
Last updated: August 21, 2008
Last verified: August 2008
The purpose of this study is to determine whether Xyotax, a conjugate of the taxane drug paclitaxel, is effective in the treatment of prostate cancer that is no longer responsive to hormone therapy.

Condition Intervention Phase
Prostatic Neoplasms
Drug: Paclitaxel polyglumex (Xyotax)
Phase 2

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Phase II Study of Xyotax in Advanced Hormone Refractory Prostate Cancer

Resource links provided by NLM:

Further study details as provided by The Methodist Hospital System:

Primary Outcome Measures:
  • PSA response
  • Correlation with soft tissue response

Secondary Outcome Measures:
  • Time to progression

Enrollment: 29
Study Start Date: March 2005
Study Completion Date: January 2008
Primary Completion Date: November 2007 (Final data collection date for primary outcome measure)
Detailed Description:
Prostate cancer is the second leading cause of cancer death in American men. Hormonal ablation, in the form of medical or surgical castration, is the cornerstone of management for metastatic prostate cancer; however, treatment options for a patient in whom androgen ablation fails are limited. Docetaxel and paclitaxel, taxanes that are cell cycle specific, play a major role in advanced hormone-refractory prostate cancer treatment. In preclinical studies, Xyotax, a conjugate of paclitaxel with enhanced permeability and retention in tumor tissue, has an improved therapeutic profile, with both decreased systemic drug-related toxicities and enhanced efficacy. Xyotax as a single agent has been studied in a broad variety of syngeneic and xenogeneic tumor models. Recognizing that taxanes are active in prostate cancer and preclinical data reports activity with Xyotax in docetaxel and paclitaxel resistant cell lines, there is significant rationale to develop this agent in prostate cancer. Thus, a phase II study is needed to evaluate the antitumor activity in two subsets of hormone refractory prostate cancer patients: those with no prior systemic and those with one prior systemic therapy.

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Progressing adenocarcinoma of the prostate having failed prior hormone therapy
  • Free of serious co-morbidity
  • Have a life expectancy of ≥ 24 weeks
  • Maintaining castrate status (either surgically or hormonally)

Exclusion Criteria:

  • Patients with central nervous system metastases, except those patients who have had excision or radiotherapy and remain asymptomatic, off steroids and with no evidence of disease as shown by MRI for at least 6 months
  • Patients known to be HIV positive
  • Patients with active autoimmune disease
  • Patients involving concurrent anticancer drug therapy
  • Patients with unstable medical condition, such as uncontrolled diabetes mellitus or hypertension; active infections requiring systemic antibiotics, antivirals, or antifungals; clinical evidence of cardiac or pulmonary dysfunction including, but not limited to: unstable CHF, uncontrolled arrhythmias, unstable coagulation disorders, or recent myocardial infarction (within 6 months)
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00446836

United States, Texas
The Methodist Hospital Research Institute
Houston, Texas, United States, 77030
Sponsors and Collaborators
The Methodist Hospital System
Cellular Therapeutics
Principal Investigator: Robert J Amato, DO The Methodist Hospital Research Institute
  More Information

No publications provided

Responsible Party: Robert J. Amato, D.O., The Methodist Hospital Research Institute
ClinicalTrials.gov Identifier: NCT00446836     History of Changes
Other Study ID Numbers: PCa-X-02  03-0192-05 
Study First Received: March 12, 2007
Last Updated: August 21, 2008
Health Authority: United States: Food and Drug Administration

Keywords provided by The Methodist Hospital System:
Adenocarcinoma of the prostate
Recurrent prostate cancer
Hormone refractory prostate cancer

Additional relevant MeSH terms:
Prostatic Neoplasms
Genital Diseases, Male
Genital Neoplasms, Male
Neoplasms by Site
Prostatic Diseases
Urogenital Neoplasms

ClinicalTrials.gov processed this record on February 08, 2016