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mTHPC mediated photodynamic therapy (PDT) of squamous cell carcinoma in the head and neck: a systematic review.

AbstractOBJECTIVE:
Photodynamic therapy (PDT) is used in curative and palliative treatment of head and neck squamous cell carcinoma (HNSCC). To evaluate available evidence on the use of mTHPC (Foscan®) mediated PDT, we conducted a review of the literature.
MATERIALS AND METHODS:
A systematic review was performed by searching seven bibliographic databases on database specific mesh terms and free text words in the categories; "head and neck neoplasms", "Photodynamic Therapy" and "Foscan". Papers identified were assessed on several criteria by two independent reviewers.
RESULTS:
The search identified 566 unique papers. Twelve studies were included for our review. Six studies reported PDT with curative intent and six studies reported PDT with palliative intent, of which three studies used interstitial PDT. The studies did not compare PDT to other treatments and none exceeded level 3 using the Oxford levels of evidence. Pooling of data (n=301) was possible for four of the six studies with curative intent. T1 tumors showed higher complete response rates compared to T2 (86% vs 63%). PDT with palliative intent was predominantly used in patients unsuitable for further conventional treatment. After PDT, substantial tumor response and increase in quality of life was observed. Complications of PDT were mostly related to non-compliance to light restriction guidelines.
CONCLUSION:
The studies on mTHPC mediated PDT for HNSCC are not sufficient for adequate assessment of the efficacy for curative intent. To assess efficacy of PDT with curative intent, high quality comparative, randomized studies are needed. Palliative treatment with PDT seems to increase the quality of life in otherwise untreatable patients.
AuthorsS A H J de Visscher, P U Dijkstra, I B Tan, J L N Roodenburg, M J H Witjes
JournalOral oncology (Oral Oncol) Vol. 49 Issue 3 Pg. 192-210 (Mar 2013) ISSN: 1879-0593 [Electronic] England
PMID23068024 (Publication Type: Journal Article, Review, Systematic Review)
CopyrightCopyright © 2012 Elsevier Ltd. All rights reserved.
Chemical References
  • Antineoplastic Agents
  • Mesoporphyrins
  • Photosensitizing Agents
  • temoporfin
Topics
  • Antineoplastic Agents (therapeutic use)
  • Carcinoma, Squamous Cell (drug therapy)
  • Head and Neck Neoplasms (drug therapy)
  • Humans
  • Mesoporphyrins (therapeutic use)
  • Neoplasm Staging
  • Palliative Care
  • Photochemotherapy (methods)
  • Photosensitizing Agents (therapeutic use)
  • Quality of Life
  • Remission Induction

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