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OHSU Cancer Institute research gives hope for chemo holidays for men with advanced prostate cancer
Date:2/25/2008

PORTLAND, Ore. Oregon Health & Science University Cancer Institute researchers, in a first-of-its-kind study, have found that even men with advanced prostate cancer can take a much-needed safe break, or holiday, from chemotherapy.

The double-blind, randomized study, led by principal investigator Tomasz Beer, M.D., recently was published in the journal Cancer. Beer is the Grover C. Bagby Endowed Chair for Cancer Research, director of the OHSU Cancer Institute Prostate Cancer Program, and associate professor of medicine (hematology/medical oncology), OHSU School of Medicine.

Beer and his team wanted to know if men with metastatic, androgen-independent prostate cancer cancer that has spread from the prostate and is not affected by the male hormone, androgen could take a break from docetaxel, an intravenous chemotherapy delivery drug that is the gold standard treatment for androgen-independent prostate cancer. Docetaxel works by killing cancer cells and slowing cell growth. However, the drug also can cause side effects, such as hair loss, nausea, loss of appetite and increased chance for infections. Chemo holidays can be a much-needed vacation from these side effects.

Prior to this study, it wasnt known whether stopping chemotherapy would lead to treatment resistance.

We wanted to see if we could improve the quality of life for these patients by giving them time away from chemotherapy and possibly extend the time their cancer is controlled. Essentially, what we proved is that in selected subjects, chemotherapy holidays are feasible and provided meaningful breaks from treatment, said Beer.

This is the first multi-institutional trial to examine outcomes from intermittent chemotherapy. A total of 250 men participated. Of those, 18 percent entered the intermittent arm of the study. These men previously had responded well to chemotherapy.

The median duration of the first chemo holiday was 18 weeks. On resumption of chemoth
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Contact: Christine Decker
deckerch@ohsu.edu
503-494-8231
Oregon Health & Science University
Source:Eurekalert

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