Prostate cancer immunotherapy significantly prolongs survival in men with advanced prostate cancer

April 29, 2009

Sipuleucel-T (Provenge), an experimental immunotherapy improved survival in men with metastatic disease, according to new results to be presented April 28 at the American Urological Association (AUA) Annual Scientific Meeting in Chicago. These data from the Phase 3 Immunotherapy for Prostate AdenoCarcinoma Treatment (IMPACT) study were presented during the meeting's Late Breaking Science Forum.

Compared to placebo, sipuleucel-T extended median survival by 4.1 months and improved three-year survival by 38 percent. Sipuleucel-T successfully exceeded the pre-specified level of statistical significance defined by the study's design and reduced the overall risk of death by 22.5 percent compared to placebo (p-value=0.032). More than 500 patients were enrolled in the IMPACT trial, a multi-center, randomized, double-blind, placebo-controlled study evaluating men with asymptomatic or minimally symptomatic, metastatic, androgen-independent . The primary endpoint was overall survival.

Researchers are encouraged by the findings, citing an impressive effect on long-term survival for patients, compared to placebo.

"The ability to boost survival for patients is the gold standard endpoint in prostate cancer clinical trials," said AUA spokesperson Ira D. Sharlip, MD. "The ability to give these both increased survival and possibly, improved quality of life, is very important."

Sipuleucel-T is an investigational therapy for men with androgen-independent prostate cancer. It is an active cellular immunotherapy designed to use live to boost a patient's to elicit a long-lasting response against cancer.

Source: American Urological Association

Related Stories

Recommended for you

Encouraging oxygen's assault on iron may offer new way to kill lung cancer cells

November 22, 2017
Blocking the action of a key protein frees oxygen to damage iron-dependent proteins in lung and breast cancer cells, slowing their growth and making them easier to kill. This is the implication of a study led by researchers ...

One-size treatment for blood cancer probably doesn't fit all, researchers say

November 22, 2017
Though African-American men are three times more likely to be diagnosed with a blood cancer called multiple myeloma, most scientific research on the disease has been based on people of European descent, according to a study ...

One in four U.S. seniors with cancer has had it before

November 22, 2017
(HealthDay)—For a quarter of American seniors, a cancer diagnosis signals the return of an old foe, new research shows.

Combination immunotherapy targets cancer resistance

November 22, 2017
Cancer immunotherapy drugs have had notable but limited success because in many cases, tumors develop resistance to treatment. But researchers at Yale and Stanford have identified an experimental antibody that overcomes this ...

Researchers discover specific tumor environment that triggers cells to metastasize

November 21, 2017
A team of bioengineers and bioinformaticians at the University of California San Diego have discovered how the environment surrounding a tumor can trigger metastatic behavior in cancer cells. Specifically, when tumor cells ...

New study points the way to therapy for rare cancer that targets the young

November 21, 2017
After years of rigorous research, a team of scientists has identified the genetic engine that drives a rare form of liver cancer. The findings offer prime targets for drugs to treat the usually lethal disease, fibrolamellar ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.