Jerjes, W;
Hamdoon, Z;
Berg, K;
Høgset, A;
Hopper, C;
(2020)
Apparent Complete Response of a Treatment Refractory and Recurrent Squamous Cell Carcinoma Lesion to Photochemical Internalization: A Clinical Case Study.
Photochemistry and Photobiology
, 96
(3)
pp. 680-683.
10.1111/php.13210.
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Abstract
Photochemical internalisation (PCI) depends on the delivery of sub‐lethal photodynamic reaction to facilitate the work of a chemotherapeutic agent. We discuss our experience in managing a patient with extensive squamous cell carcinoma of the right face and scalp under the TPCS2a‐based bleomycin PCI treatment protocol. In this case, an 84‐year‐old Caucasian received 0.25mg/kg of TPCS2a (Amphinex®). Surface illumination photochemical internalisation was carried out after 4 days, which was preceded by the chemotherapeutic agent infusion (Bleomycin). After one week from the illumination time, tissue necrosis was evident and tumour shrinkage was most noticeable at day 14 post‐illumination. Follow‐up at 6 weeks continued to show tissue healing and regeneration with no clinical evidence of recurrence. Multiple surgical biopsies were taken at 1 and 3 months post‐illumination and found to be tumour free. PCI’s depth of effect has been very significant with negligible damage to the collateral tissues. This technology has a role in interventional oncology especially when managing challenging cases.
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