Metformin With Standard Taxotere and Prednisone in the Treatment of Castration Resistant Prostate Cancer

This study has been withdrawn prior to enrollment.
(No accrual in initial period, PI decided to close study.)
Sponsor:
Information provided by (Responsible Party):
New Mexico Cancer Care Alliance
ClinicalTrials.gov Identifier:
NCT01478308
First received: September 2, 2011
Last updated: March 5, 2013
Last verified: March 2013
  Purpose

This study is being conducted to determine the effectiveness of standard 3 weekly treatments using docetaxel and prednisone with metformin in patients with castration-resistant metastatic prostate cancer.

It is also being conducted to determine the levels of toxicity of metformin when added to every 3 weekly docetaxel treatments in patients with endocrine resistent, metastatic prostate cancer.


Condition Intervention Phase
Prostate Cancer
Drug: Metformin hydrochloride
Drug: Docetaxel
Drug: Prednisone
Phase 2

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Metformin With Standard Taxotere and Prednisone in the Treatment of Castration Resistant Prostate Cancer

Resource links provided by NLM:


Further study details as provided by New Mexico Cancer Care Alliance:

Primary Outcome Measures:
  • Measure efficacy [ Time Frame: 7 years ] [ Designated as safety issue: No ]
    To determine the antitumor activity of metformin in combination with docetaxel and prednisone which are considered standard of care administered to patients with hormone refractory prostate cancer.


Secondary Outcome Measures:
  • Measure toxicity [ Time Frame: 7 years ] [ Designated as safety issue: Yes ]
    To evaluate the quantitative and qualitative toxicities of metformin with this schedule, in this population


Enrollment: 0
Study Start Date: June 2011
Study Completion Date: October 2011
Primary Completion Date: October 2011 (Final data collection date for primary outcome measure)
Intervention Details:
    Drug: Metformin hydrochloride
    Metformin is administered orally, with food. Metformin tablets contain 500mg, 850mg, or 1000mg of metformin hydrochloride. Tablets contain inactive ingredients including pofidone and magnesium stearate. The coating for 500mg and 850mg tablets contains hypromellose. Metformin is an antihyperglycemic agent which decreases hepatic glucose production, decreases intestinal absorption of glucose, and improves insulin sensitivity by increasing peripheral glucose uptake and utilization.In this study, Metformin will be given 850 mg orally, with food, once daily for 1 week starting the week before first docetaxel infusion, and thereafter 850 mg twice daily.
    Drug: Docetaxel
    Docetaxel will be administered 75 mg/m2 as one hour infusion on day 1 every 21 days.
    Drug: Prednisone
    Prednisone will be given 5mg orally twice daily which is the standard regimen with docetaxel
Detailed Description:

This is a single-arm, non-randomized Phase II trial of docetaxel given every 3 weeks with metformin twice daily and Prednisone twice daily. The study duration of this trial is open ended. The patient would take the metformin only for as long as they are treated with docetaxel.

  Eligibility

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

Inclusion Criteria:

  • All patients, 18 of age or older, with hormone refractory prostate cancer are eligible.
  • Patients must have a life expectancy of at least 12 weeks.
  • Patients must have a Zubrod performance status of 0-2.
  • Patients must sign an informed consent.
  • Patients should have adequate bone marrow function defined by an absolute peripheral granulocyte count of > 1,500 or cells/mm3 and platelet count >100,000/mm3 and absence of a regular red blood cell transfusion requirement.
  • Patients should have adequate hepatic function with a total bilirubin < 2 mg/dl and SGOT or SGPT < two times the upper limit of normal, and adequate renal function as defined by a serum creatinine < 1.5 x upper limit of normal.
  • Patients must have pathologically confirmed prostate cancer with PSA increasing despite androgen deprivation therapy.
  • Diabetic patients on therapy with Metformin are eligible provided that their Metformin dose is at least 850mg twice daily.

Exclusion Criteria:

  • Patients with symptomatic brain metastases are excluded from this study.
  • Patients on insulin are not eligible.
  • Patients may receive no other concurrent chemotherapy or radiation therapy during this trial.
  • Patients with severe medical problems such as uncontrolled diabetes mellitus, cardiovascular disease, and congestive heart failure defined as New York Heart Association Class III or IV, hepatic dysfunction, or active infections are not eligible for this trial.
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01478308

Sponsors and Collaborators
New Mexico Cancer Care Alliance
Investigators
Principal Investigator: Richard Lauer, MD University of New Mexico Cancer Center
  More Information

Additional Information:
No publications provided

Responsible Party: New Mexico Cancer Care Alliance
ClinicalTrials.gov Identifier: NCT01478308     History of Changes
Other Study ID Numbers: INST 1011
Study First Received: September 2, 2011
Last Updated: March 5, 2013
Health Authority: United States: Institutional Review Board

Keywords provided by New Mexico Cancer Care Alliance:
prostate
castration resistant
hormone resistant
CRPC

Additional relevant MeSH terms:
Prostatic Neoplasms
Genital Neoplasms, Male
Urogenital Neoplasms
Neoplasms by Site
Neoplasms
Genital Diseases, Male
Prostatic Diseases
Metformin
Prednisone
Docetaxel
Hypoglycemic Agents
Physiological Effects of Drugs
Pharmacologic Actions
Glucocorticoids
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists
Antineoplastic Agents, Hormonal
Antineoplastic Agents
Therapeutic Uses
Anti-Inflammatory Agents

ClinicalTrials.gov processed this record on April 17, 2014