Anti-GnRH antibodies can induce castrate levels of testosterone in patients with advanced prostate cancer
2000

Anti-GnRH Antibodies and Prostate Cancer Treatment

Sample size: 12 publication Evidence: low

Author Information

Author(s): Simms M S, Scholfield D P, Jacobs E, Michaeli D, Broome P, Humphreys J E, Bishop M C

Primary Institution: Department of Urology, City Hospital, Nottingham, UK

Hypothesis

Can anti-GnRH antibodies induce castrate levels of testosterone in patients with advanced prostate cancer?

Conclusion

The study found that immunizing patients with prostate cancer against GnRH can achieve and maintain castrate levels of testosterone.

Supporting Evidence

  • The drug was well tolerated overall.
  • A significant reduction in serum testosterone and PSA was seen in 5 patients.
  • Castrate levels of testosterone were achieved in 4 patients and maintained for up to 9 months.
  • Patients with the highest antibody titre had the best response in terms of testosterone suppression.

Takeaway

This study shows that a new treatment can help lower testosterone levels in men with prostate cancer, which might be better than traditional treatments.

Methodology

Patients received either 30 or 100 μg of D17DT intramuscularly on three occasions over six weeks, followed by blood tests.

Limitations

The study was a pilot with a small sample size and short follow-up.

Participant Demographics

Twelve patients with histologically proven prostate cancer requiring hormonal therapy.

Digital Object Identifier (DOI)

10.1054/bjoc.2000.1315

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