Photosensitizer Photolon, a complex of chlorin e6 and PVP, was originally developed by RUE “Belmedprepa, and registered in Belarus, Russian Federation, Kazakhstan and Ukraine. During the last 18 years Photolon was used clinically and proven to be effective in photodynamic diagnostics and treatment of different cancerous and benign conditions. Pre–marketing clinical trials of Photolon were conducted at 4 major oncology centers in Minsk, Obninsk, and Moscow and total of 112 patients were included. Open-label randomized non-comparative clinical trial confirmed safety and efficiency of PDT with Photolon for 154 patients with CIN grade I-III. Clinical trial of PDT with Photolon was carried out in 68 patients with disseminated skin melanoma. Clinical trial was conducted in 37 patients with central lung carcinoma. In 2006 we started an open-label randomized controlled clinical trial of Photolon applied intraoperatively in patients with primary and metastatic brain tumors, 102 patients were treated. In 2006 an open-label multicenter clinical trial of Photolon for treatment of choroidal neovascularization (CN) in age-related macular degeneration and myopic maculopathy was complete. 50 patients with CN were treated and positive therapeutic effect was maintained in 100% of patients within 1 year. Since 2001 more then 35 000 doses of Photolon were produced, and about 20 000 patients were treated. During this time there were no reports of adverse events or failed treatment with Photolon. Photolon was proven to be an extremely effective photosensitizer for PTD for multiple medical conditions and has minimal side effects.
The purpose of the present study was to summarize data on the long-term efficacy of photodynamic therapy (PDT) with
Photolon in patients with malignant tumors of various types and localizations. The data obtained show that PDT with
Photolon is a highly effective therapeutic modality for the treatment of skin tumors, cervical intraepithelial neoplasias,
lung cancers, disseminated forms of melanoma, primary and metastatic brain tumors, several ophthalmologic diseases.
This paper provides a review of most illustrative studies of the application of PDT with Photolon for the treatment of
different oncological and non-oncological diseases performed in leading clinical centers of the Republic of Belarus and
The purpose of the present study was to evaluate toxicological properties and photodynamic activity of a new ready form
of the photosensitizer Photolon (Fotolon) - an ointment for topical use. The data obtained show the use of topicaly
applied photosensitizer provides sufficient penetration and accumulation of the active compound in tumor tissue as well
as in affected periodontal tissues for the effective PDT. There are several advantages of PDT with topical application of
the photosensitizer such as absence of systemic toxic and photosensitive reactions, relatively low cost of the treatment
and etc. We have shown that PDT of affected periodontal tissues with local application of Photolon/Fotolon ointment
provides an ability of local destruction of microbial cell, located as on the gum surface as in the spatium intercellulare
what is extremely important for successful treatment of acute and chronic periodontitis.