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Qiuju Wu, Ping Tu, Guoyu Zhou, Huilan Yang, Zhanchao Zhou, Yi Zhao, Qingshan Zheng, Ying Gu, Jining Tao, Xuejun Zhu
BACKGROUND/PURPOSE: Previous studies have shown that hemoporfin-mediated photodynamic therapy (PDT) was a treatment for port-wine stain (PWS). Our current study aimed to identify optimal hemoporfin dose. METHODS: A prospective, multicenter, double-blind, randomized clinical trial was conducted. Patients were assigned into low- or high-dose hemoporfin (2.5 mg/kg and 5 mg/kg intravenously, respectively), or control (placebo) group, at a rate of 2:2:1. Treatment efficacy was evaluated at week 8...
March 13, 2018: Photodermatology, Photoimmunology & Photomedicine
Yunjie Zhang, Shuang Jiang, Hongxia Chen, Xianbiao Zou
Port-wine stain is a type of common congenital superficial telangiectasia in the dermal layer mostly occurring on the forehead, face, and neck. The affected skin shows abnormal red or purple lesions, which darken and thicken. Nodular changes may develop with advancing age. If untreated, port-wine stains scarcely regress, which can have serious lifelong psychological impact on patients and affect their quality of life. In this report, we focused on two cases of port-wine stain in pediatric patients; the youngest patient was only 1...
July 2017: Anais Brasileiros de Dermatologia
Yan Tang, Hongfu Xie, Ji Li, Dan Jian
BACKGROUND: Research has focused on treatment efficiency and/or treatment reactions of photodynamic therapy (PDT) on port-wine stain (PWS). But few studies reported the association between them. Hence, here we investigated the association between the treatment efficiency and treatment reactions after Hemoporfin (HMME) mediated photodynamic therapy (PDT) on PWS through a prospective study. METHODS: Patients (n=50) with PWS were randomly assigned to the HMME group or the placebo group...
June 2017: Photodiagnosis and Photodynamic Therapy
Yi Zhao, Ping Tu, Guoyu Zhou, Zhanchao Zhou, Xiaoxi Lin, Huilan Yang, Zhong Lu, Tianwen Gao, Yating Tu, Hongfu Xie, Qingshan Zheng, Ying Gu, Jining Tao, Xuejun Zhu
BACKGROUND AND OBJECTIVES: Photodynamic therapy (PDT) has shown potentially beneficial results in treating port-wine stain, but its benefit-risk profile remains undefined. This study aimed to evaluate the efficacy and safety of PDT conducted with hemoporfin and a 532 nm continuous wave laser to treat port-wine stain clinically. PATIENTS AND METHODS: This randomized clinical trial was conducted in eight hospitals in China. Participants were adolescent and adult patients (age range: 14-65 years old) with port-wine stain...
2016: PloS One
Bin Zhang, Tao-Hua Zhang, Zheng Huang, Qin Li, Kai-Hua Yuan, Zhi-Qi Hu
BACKGROUND: Vascular-acting photodynamic therapy (PDT) might be an alternative approach for treating port wine stain (PWS) birthmarks, but the usefulness of PDT for pediatric patients has not been fully investigated. STUDY DESIGN: Medical records of pediatric patients (3-10 years old) with red and purple facial PWS were analyzed. Clinical outcomes after one session of PDL (585 nm, 4.8-6.5 J/cm(2)) and PDT (Hemoporfin - 3.5mg/kg, copper vapour laser - 120 J/cm(2)) were compared...
December 2014: Photodiagnosis and Photodynamic Therapy
Kai-Hua Yuan, Jian-Hua Gao, Zheng Huang
BACKGROUND: Several Chinese studies suggest that Hemoporfin-mediated photodynamic therapy (PDT) is an alternative treatment for port-wine stain (PWS) birthmarks. OBJECTIVE: To evaluate treatment responses and adverse effects associated with Hemoporfin PDT for the treatment of PWS and their management. METHOD: The medical records of 700 patients who underwent PDT treatment in our center were retrospectively examined. Treatment-related reactions and adverse effects were reviewed...
December 2012: Photodiagnosis and Photodynamic Therapy
Tim C Lei, Gregory F Glazner, Michael Duffy, Larry Scherrer, Srinivas Pendyala, Buhong Li, Xiuli Wang, Hongwei Wang, Zheng Huang
We report on some of the optical properties of Hemoporfin (hematoporphyrin monomethyl ether, HMME), a photodynamic therapy (PDT) photosensitizer that has been in clinical trials in China since the early 1990s. We characterized the photosensitizer on the basis of one- and two-photon absorption and fluorescence emission. The effects of photobleaching were probed to characterize its decay kinetics. Additionally, we determined time resolved fluorescence and thermal effects on fluorescence and absorption properties...
September 2012: Photodiagnosis and Photodynamic Therapy
Yu Pu, Wenhui Chen, Zhengwei Yu
The second generation photosensitizer Hemoporfin (7(12)-(1-methoxyethyl) -12(7)-(1-hydroxyethyl)-3,8,13,17-tetramethyl-21H,23H-porphin-2,18-dipropionic acid) is a porphyrin derivative which processes a stable structure, high singlet oxygen yield, high photoactivity, low dark toxicity and fast clearance rate. Hemoporfin, also known as hematoporphyrin monomethyl ether (HMME) has been studied and used in photodynamic therapy (PDT) in China since 1989. This series of reports will provide an overview on the preclinical and clinical studies of this PDT photosensitizer...
June 2012: Photodiagnosis and Photodynamic Therapy
Pei-hong Sun, Xia Zhao, Ying Zhou, Yan Liang, Hui-lin Zhang, Yi-min Cui, Ji-ning Tao
AIM: To investigate the safety, tolerability and pharmacokinetics of intravenous hemoporfin, a novel photosensitive drug for the treatment of port-wine stain (PWS), in healthy Chinese volunteers following single-dose administration. METHODS: Thirty-six healthy Chinese subjects were enrolled. The subjects were administered hemoporfin (2.5, 5, 7.5 or 10 mg/kg) via single-dose intravenous infusion. Pharmacokinetics of the drug were studied in the groups with doses of 2...
December 2011: Acta Pharmacologica Sinica
Yi Zhao, Zhanchao Zhou, Guoyu Zhou, Ping Tu, Qingshan Zheng, Jining Tao, Ying Gu, Xuejun Zhu
BACKGROUND/PURPOSE: This phase IIa study aimed to study the efficacy and safety of hemoporfin in photodynamic therapy (PDT) with a 532 nm continuous laser for port-wine stain (PWS). METHODS: In this 8-week open-labeled study in three centers, three different laser exposure times (532 nm continuous laser for 20, 30 and 40 min) were used in stage I, group A, stage II, group B and stage III, group C, respectively. Primary efficacy assessment was performed by an independent group of experts, who reviewed the standardized photos...
February 2011: Photodermatology, Photoimmunology & Photomedicine
Yongqing Wei, Beihua Kong, Kun Song, Xun Qu, Qiong Jin, Qifeng Yang
Hemoporfin is a novel second-generation porphyrin-related photosensitizer for ovarian cancer photodynamic treatment (PDT). The purpose of this study was to investigate the molecular mechanisms of Hemoporfin-mediated photocytotoxicity. Human epithelial ovarian cancer cell line 3AO was incubated with different concentrations of Hemoporfin, and phototoxic effects of Hemoporfin on cells were determined using a Cell Viability Analyzer. Apoptosis or necrosis was determined by flow cytometry analysis using the Annexin V-FITC apoptosis kit...
November 2007: Photochemistry and Photobiology
Kun Song, Beihua Kong, Xun Qu, Li Li, Qifeng Yang
Hematoporphyrin monomethyl ether (Hemoporfin) is a novel porphyrin-related photosensitizer. Photocytotoxic effect of Hemoporfin to ovarian cancer is still unclear. We used human epithelial ovarian carcinoma cell line SKOV3 and its xenograft model in nude mice to investigate the Hemoporfin-based photodynamic therapy (PDT) for ovarian cancer. The growth rates of SKOV3 cells were determined by MTT assays. Flow cytometry combined with dual Annexin V/PI staining was used to identify the death mode of the cells following PDT...
November 11, 2005: Biochemical and Biophysical Research Communications
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