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      Behandlung von Kopf-Hals-Tumoren mittels photodynamischer Therapie mit Redaporfin: ein klinischer Fallbericht

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          Abstract

          Fortgeschrittene Plattenepithelkarzinome der Kopf-Hals-Region, die sich nach lokoregionärer Behandlung und mehreren systemischen Therapielinien als refraktär erweisen, stellen eine schwierige therapeutische Herausforderung dar. Der vorliegende Fallbericht schildert ein Erfolgsbeispiel und beschreibt erstmals die Anwendung einer photodynamischen Therapie (PDT) mit Redaporfin gefolgt von einer Immun-Checkpoint-Inhibition mit einem Antikörper gegen PD1. Der betreffende Patient hatte einen umfangreichen Tumor am Mundboden, der nach Chirurgie, Strahlentherapie und zahlreichen Linien systemischer Therapie weiter progredierte. Mit der Redaporfin-PDT wurde sämtliches erkennbares Tumorgewebe zerstört, und die anschließende Anwendung eines Immun-Checkpoint-Inhibitors ermöglichte ein anhaltendes vollständiges Ansprechen. Dieser Fall ist ein Beispiel für die Wirkung dieser Kombinationstherapie und könnte den Weg für eine neue therapeutische Modalität ebnen.

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          Epidemiologic trends in head and neck cancer and aids in diagnosis.

          Head and neck squamous cell carcinoma is the sixth most common cancer worldwide predominately associated with tobacco use. Changing cause and increased incidence in oropharyngeal carcinomas is associated with high-risk types of human papilloma virus and has an improved survival. Optical devices may augment visual oral examination; however, their lack of specificity still warrants tissue evaluation/biopsy. Histologic factors of oral carcinomas are critical for patient management and prognostic determination. Clinical biomarkers are still needed to improve early detection, predict malignant transformation, and optimize therapies.
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            Is Open Access

            Oncologic Photodynamic Therapy: Basic Principles, Current Clinical Status and Future Directions

            Photodynamic therapy (PDT) is a clinically approved cancer therapy, based on a photochemical reaction between a light activatable molecule or photosensitizer, light, and molecular oxygen. When these three harmless components are present together, reactive oxygen species are formed. These can directly damage cells and/or vasculature, and induce inflammatory and immune responses. PDT is a two-stage procedure, which starts with photosensitizer administration followed by a locally directed light exposure, with the aim of confined tumor destruction. Since its regulatory approval, over 30 years ago, PDT has been the subject of numerous studies and has proven to be an effective form of cancer therapy. This review provides an overview of the clinical trials conducted over the last 10 years, illustrating how PDT is applied in the clinic today. Furthermore, examples from ongoing clinical trials and the most recent preclinical studies are presented, to show the directions, in which PDT is headed, in the near and distant future. Despite the clinical success reported, PDT is still currently underutilized in the clinic. We also discuss the factors that hamper the exploration of this effective therapy and what should be changed to render it a more effective and more widely available option for patients.
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              • Article: not found

              Enhanced Immunotherapy Based on Photodynamic Therapy for Both Primary and Lung Metastasis Tumor Eradication

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                Author and article information

                Journal
                KKD
                10.1159/issn.2296-5424
                Karger Kompass Dermatologie
                S. Karger AG
                2296-5424
                2296-536X
                2019
                21 November 2019
                : 7
                : 4
                : 215-219
                Affiliations
                aPortuguese Institute of Oncology, Porto, Portugal; bExperimental Pathology and Therapeutics Group of Portuguese Institute of Oncology, Porto, Portugal; cUniversity Hospital of São João, Porto, Portugal
                Author notes
                *Lúcio Lara Santos, Instituto Português de Oncologia do Porto FG EPE (IPO-Porto), Rua Dr. António Bernardino de AlmeidaPT-4200-072 Porto (Portugal), E-Mail llarasantos@gmail.com
                Article
                503077 Karger Kompass Dermatol 2019;7:215-219
                10.1159/000503077
                e3602365-c7da-4a24-824a-ea923bb5bc96
                © 2018 Die Autoren. Herausgegeben von S. Karger AG, Basel.

                Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                History
                Page count
                Figures: 4, References: 18, Pages: 5
                Categories
                Erfahrung aus der Praxis

                Oncology & Radiotherapy,Pathology,Surgery,Dermatology,Pharmacology & Pharmaceutical medicine
                Immunotherapy,Photodynamic therapy,Head and neck cancer,Immune checkpoint Inhibitor,Redaporfin

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