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Yan Liu,Guofang Hou,Xiaobei Zhang,Jing Jing Liu,Sheng Zhang,Jin Zhang 한국유방암학회 2014 Journal of breast cancer Vol.17 No.2
Purpose: This study investigated the additive effect of photodynamictherapy (PDT) plus traditional radiotherapy (RT) for patientswith breast cancer and chest wall recurrence. Methods: Atotal of 40 patients with recurrent breast cancer were prospectivelyrandomized to receive RT alone (group A, n=20) or PDTand RT in combination (group B, n=20). Traditional RT at a doseof 50 Gy was delivered in 25 fractions with or without exposureto 5-aminolevulinic acid and red light as PDT. Results: The responserates were not statistically different between the groups,but more patients achieved a complete response (CR) in groupB (50%) than in group A (20%). The median time to CR in groupB was significantly shorter than that in group A (109.6 days vs. 175.2 days, p=0.001). Adverse event profiles were not differentbetween the groups. Conclusion: An additive antitumor effect isdemonstrated with additional PDT to RT. This combination therapymight reduce the duration of exposure to RT, but further investigationis warranted.