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Leukine in non-metastatic recurrence: good for some


JimmyToowong

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J Urol. 2006 Jun;175(6):2087-91.

Clinical and immunological characteristics of patients with serologic progression of prostate cancer achieving long-term disease control with granulocyte-macrophage colony-stimulating factor.

Rini BI, Fong L, Weinberg V, Kavanaugh B, Small EJ.

Source

University of California-San Francisco Comprehensive Cancer Center, San Francisco, California, USA. rinib2@ccf.org

Abstract

PURPOSE:

We describe the clinical and immunological characteristics of patients with biochemically relapsed prostate cancer who achieved long-term disease control with GM-CSF (Leukine).

MATERIALS AND METHODS:

A total of 30 patients with prostate cancer and nonmetastatic recurrent disease, as manifested by increasing PSA between 0.4 and 6.0 ng/ml after prior definitive therapy, were enrolled in a phase II trial. Patients received 250 microg/m2 [jm] GM-CSF daily subcutaneously on days 1 through 14 of a 28-day cycle until PSA or objective progression. The patient and disease characteristics of patients who remained without evidence of disease progression beyond 4 years were examined. Additionally, flow cytometry was performed in peripheral blood to characterize monocyte and dendritic cells.

RESULTS:

Seven of 29 evaluable patients (24%) remained free of disease progression at a median of 5.1 years (range 4.5 to 5.6 or greater) from the start of GM-CSF therapy. Patients on long-term GM-CSF tended to have lower initial T stage, Gleason score and pretreatment PSA. An increase in the number of circulating monocytes and dendritic cells was observed after 14 days of GM-CSF treatment. These values returned to baseline during the 14-day off period.

CONCLUSIONS:

GM-CSF modulates PSA in androgen dependent, biochemically relapsed cases. A substantial proportion of patients achieve long-term disease control. The clinical characteristics described may help select patients for future clinical trials with GM-CSF or other immunomodulators. Additional investigation is required to define the immunological mechanism of GM-CSF in prostate cancer.

Comment in

J Urol. 2007 Apr;177(4):1585; author reply 1585-6.

PMID: 16697809 Forum: New agents Title: Leukine in non-metastatic recurrence: good for some

This extract can be found on http://PubMed.com, and is in the public domain.

On PubMed.com there will be a link to the full paper (often $30, sometimes free).

Any highlighting (except the title) is not by the author, but by Jim Marshall.

Jim is not a doctor.

This page was found on the Advanced Prostate Cancer Community for Australian men at http://advancedprost...lia.ipbhost.com.

The link is hard to remember.

An easier way to find it is to go to JimJimJimJim.com and click on Prostate.

That's the word Jim four times, no spaces, followed by .com.

If you need other help - to perhaps find someone to talk to or a local support group:

Click on the Contact Jim button at http://JimJimJimJim.com.

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