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Haddadin OM, Ortega-Loayza AG, Marzano AV, Davis MDP, Dini V, Dissemond J, Hampton PJ, Navarini AA, Shavit E, Tada Y, Yamamoto T, Alavi AA. An approach to diagnosis and management of patients with pyoderma gangrenosum from an international perspective: results from an expert forum. Arch Dermatol Res 2024; 316:89. [PMID: 38400852 DOI: 10.1007/s00403-024-02829-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 10/25/2023] [Accepted: 01/28/2024] [Indexed: 02/26/2024]
Affiliation(s)
- Olivia M Haddadin
- School of Medicine, Oregon Health and Science University, Portland, OR, USA
| | - Alex G Ortega-Loayza
- Department of Dermatology, Oregon Health and Science University, Portland, OR, 97239, USA.
| | - Angelo Valerio Marzano
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | | | - Valentina Dini
- Department of Dermatology, University of Pisa, Pisa, Italy
| | - Joachim Dissemond
- Department of Dermatology, Venerology and Allergology, University of Essen, Essen, Germany
| | - Philip J Hampton
- Department of Dermatology, The Royal Victoria Infirmary, Newcastle Upon Tyne, UK
- Newcastle Biomedical Research Centre, Newcastle Upon Tyne, UK
| | - Alexander A Navarini
- Department of Dermatology and Department of Biomedical Engineering, University Hospital of Basel, Basel, Switzerland
| | - Eran Shavit
- Dermatology Clinic, Wolfson Medical Center, Holon, Israel
- The Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Yayoi Tada
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
| | - Toshiyuki Yamamoto
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
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Haddadin OM, Jacobson ME, Chen DM, Croitoru DO, Dissemond J, Gontijo JRV, Hampton PJ, Kelly RI, Marzano AV, Tada Y, Gerbens LAA, Ortega-Loayza AG. Minimum data set for treatment effectiveness in pyoderma gangrenosum (MIDSTEP): an international protocol of an e-Delphi study to develop a clinical physician-driven treatment effectiveness registry on behalf of the UPGRADE initiative. Arch Dermatol Res 2023; 315:2913-2919. [PMID: 37755505 DOI: 10.1007/s00403-023-02729-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/02/2023] [Accepted: 09/06/2023] [Indexed: 09/28/2023]
Abstract
Pyoderma gangrenosum (PG) is a rare inflammatory condition with an immense disease burden that remains understudied. With limited approved treatments and low-quality clinical evidence, PG continues to have poor patient outcomes. Unfortunately, improvement in PG treatments and patient care is based on additional research endeavors that can only be developed from existing high-quality data. The following protocol outlines the development of the Minimum Data Set for Treatment Effectiveness in Pyoderma gangrenosum (MIDSTEP), a core set of domains and domain items for the Pyoderma Gangrenosum Treatment Effectiveness (PyGaTE) international registry. The outcomes and benefits are focused on providing real-world data for physicians to improve their clinical decisions on PG treatment and inform clinical trial design, promoting clinical research among the international scientific community. MIDSTEP is a multi-phase project. The first phase will produce a domain item list from a literature review to take into the second phase which would finalize the core data set by an e-Delphi exercise. There will be a single stakeholder group participating together in the e-Delphi consisting of PG experts (healthcare providers, researchers, methodologists, industry representatives, and regulators), ulcerative PG patients, and PG patient advocates. The methodology outlined in the protocol is a systematic method based on several guidelines through COMET and established dermatologic registries and outcome sets with systematic methodologies of their own. The third phase will identify the instruments for the items, the 'when to measure' the items, and the platform for the registry. The last phase is the implementation and continued maintenance of the international registry PyGaTE. By solidifying a consensus on standardized outcomes and collecting information on PG treatment effectiveness in a centralized database, existing treatments can be compared more systematically and analyzed with increased evidence. MIDSTEP and the PyGaTE international registry will have the ambitious goal to generate and disseminate real-world data that can be used by all stakeholders to improve health outcomes for PG patients. Future potential for the outcome of this project includes the development of a gold-standard PG treatment.
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Affiliation(s)
- Olivia M Haddadin
- School of Medicine, Oregon Health and Science University, Portland, OR, USA
| | - Michael E Jacobson
- Department of Dermatology, Center for Health and Healing, Oregon Health and Science University, Portland, OR, USA
| | | | - David O Croitoru
- Division of Dermatology, Department of Medicine, Women's College Hospital, University of Toronto, Toronto, Canada
| | - Joachim Dissemond
- Department of Dermatology, Venerology and Allergology, University of Essen, Essen, Germany
| | - Joao Renato V Gontijo
- Professor of Dermatology, Medical School of Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Philip J Hampton
- Department of Dermatology, The Royal Victoria Infirmary, Newcastle upon Tyne, UK
| | - Robert I Kelly
- Department of Dermatology, St Vincent's Hospital, Melbourne, Australia
| | - Angelo Valerio Marzano
- Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Yayoi Tada
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
| | - Louise A A Gerbens
- Department of Dermatology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105, Amsterdam, The Netherlands
| | - Alex G Ortega-Loayza
- Department of Dermatology, Center for Health and Healing, Oregon Health and Science University, Portland, OR, USA.
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Sharpe LA, Vela Ramirez JE, Haddadin OM, Ross KA, Narasimhan B, Peppas NA. Correction to “pH-Responsive Microencapsulation Systems for the Oral Delivery of Polyanhydride Nanoparticles”. Biomacromolecules 2018; 19:3904. [DOI: 10.1021/acs.biomac.8b01240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sharpe LA, Vela Ramirez JE, Haddadin OM, Ross KA, Narasimhan B, Peppas NA. pH-Responsive Microencapsulation Systems for the Oral Delivery of Polyanhydride Nanoparticles. Biomacromolecules 2018; 19:793-802. [PMID: 29443509 DOI: 10.1021/acs.biomac.7b01590] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Multicompartmental polymer carriers, referred to as Polyanhydride-Releasing Oral MicroParticle Technology (PROMPT), were formed by a pH-triggered antisolvent precipitation technique. Polyanhydride nanoparticles were encapsulated into anionic pH-responsive microparticle gels, allowing for nanoparticle encapsulation in acidic conditions and subsequent release in neutral pH conditions. The effects of varying the nanoparticle composition and feed ratio on the encapsulation efficiency were evaluated. Nanoparticle encapsulation was confirmed by confocal microscopy and infrared spectroscopy. pH-triggered protein delivery from PROMPT was explored using ovalbumin (ova) as a model drug. PROMPT microgels released ova in a pH-controlled manner. Increasing the feed ratio of nanoparticles into the microgels increased the total amount of ova delivered, as well as decreased the observed burst release. The cytocompatibility of the polymer materials were assessed using cells representative of the GI tract. Overall, these results suggest that pH-dependent microencapsulation is a viable platform to achieve targeted intestinal delivery of polyanhydride nanoparticles and their payload(s).
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Affiliation(s)
| | | | | | - Kathleen A Ross
- Department of Chemical and Biological Engineering , Iowa State University , Ames , Iowa 50011 , United States
| | - Balaji Narasimhan
- Department of Chemical and Biological Engineering , Iowa State University , Ames , Iowa 50011 , United States
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