Tumor Therapy

Study Optimizes Time Intervals For Administering Photodynamic Therapy

Published in Cancer Weekly, December 18th, 2001

by Sonia Nichols, senior medical writer - Researchers in Japan have determined the optimal time intervals for maximizing the efficacy of photodynamic therapy.

Photodynamic therapy is typically used for treating skin cancers and retinopathies, and is being investigated for the treatment of other tumors in a number of clinical trials. According to M. Uehara and associates at Nagasaki University School of Dentistry, photodynamic therapy (PDT) sessions for tumor treatment should be administered at least 24 hours apart. Because of cellular dynamics, shorter intervals between sessions are not as effective, they said in the European Journal of Cancer.

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Source: Cancer Weekly (2001-12-18)

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