Therapies

Sipuleucel-T

Provenge

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SUMMARY

Company: Dendreon
Approval Status: FDA Approved May 2010
Specific Treatments: hormone refractory prostate cancer
Drug: Sipuleucel-T

 

GENERAL INFORMATION

Provenge (Sipuleucel-T)  is an autologous cellular immunotherapy designed to induce an immune response targeted against PAP (prostatic acid phosphatase), an antigen expressed in most prostate cancers.

Provenge is specifically indicated for the treatment of asymptomatic or minimally symptomatic metastatic castrate resistant (hormone refractory) prostate cancer.

Provenge is supplied as an infusion, containing a minimum of 50 million autologous CD54+ cells activated with PAP-GM-CSF, designed for intravenous administration. The recommended course of therapy is three complete doses, given at approximately 2-week intervals.

 

CLINICAL RESULTS

FDA Approval

The FDA approval of Provenge (Sipuleucel-T) was based on three studies.
Study One
This randomized, double-blind, placebo-controlled, multicenter trial enrolled 512 subjects with asymptomatic or minimally symptomatic metastatic castrate resistant (hormone refractory) prostate cancer. The median overall survival was 25.8 months for the Provenge arm and 21.7 months for the placebo arm (p=0.032).
Study Two and Three
These were similar randomized, double-blind, placebo-controlled, multicenter trials in patients with metastatic castrate resistant prostate cancer and no cancer-related pain. The primary endpoint was time to disease progression; analysis of the primary endpoint did not reach statistical significance. The median overall survival was 25.9 months for the Provenge arm and 21.4 months for the placebo arm.

 

SIDE EFFECTS

Adverse events associated with the use of Provenge (Sipuleucel-T) may include, but are not limited to, the following:

  • Chills
  • Fatigue
  • Fever
  • Back pain
  • Nausea
  • Joint ache
  • Headache

 

MECHANISM ACTION

Dendreon is an autologous cellular immunotherapy. While the precise mechanism of action is unknown, Provenge is designed to induce an immune response targeted against PAP, an antigen expressed in most prostate cancers.

 

Source: centerwatch