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Higashi Y, Imafuku S, Tsuruta N, Murotani K. Systemic therapy for psoriasis and the risk of cutaneous infections. J Dermatol 2024. [PMID: 38660962 DOI: 10.1111/1346-8138.17245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 03/21/2024] [Accepted: 04/08/2024] [Indexed: 04/26/2024]
Abstract
Systemic treatments are important for patients with moderate-to-severe psoriasis; however, they may occasionally cause adverse infectious events. Although the risk of severe infections with psoriatic treatments is well established, little is known about cutaneous infections. Therefore, we studied the frequency of cutaneous infections in patients with psoriasis who underwent biologic treatment. A total of 878 patients (237 females and 641 males) were analyzed in this follow-up survey conducted in 2020 and based on the Western Japan Psoriasis Registry. The observed skin phenotypes were psoriasis vulgaris (83.3%), pustular psoriasis (7.5%), and psoriatic arthritis (28.9%). The most frequently prescribed systemic drug was apremilast (11.3%), followed by ixekizumab (11.0%), risankizumab (10.9%), and secukinumab (10.4%). The incidence of cutaneous bacterial infections was 12 (1.37% of the total patients), with cellulitis being the most common (8/12, 67%). The incidence of viral infections was 11 (1.25%) including the most common, herpes zoster (9/11, 82%); and that of fungal infections was 45 (5.13%) including 33 (73%) and seven (16%) patients with trichophytosis and oral candidiasis, respectively. Multivariate analysis revealed that cutaneous bacterial infections were frequently observed in patients receiving tumor necrosis factor-α (odds raio [OR] 9.917, 95% confidence interval [CI] 2.069-47.572, p = 0.004) and interleukin (IL)-17 (OR 10.798, 95% CI 2.35-49.616, p = 0.002) inhibitor treatments. A history of otitis media and treatment with oral medications (OR 4.50, 95% CI 1.281-15.804, p = 0.019 and OR 3.80, 95% CI 1.141-12.679, p = 0.03 respectively) were associated with a higher ORs for cutaneous viral infections. Furthermore, age and use of IL-17 inhibitors were associated with elevated ORs for fungal infections. In conclusion, our study reveals that systemic therapies may increase the risk of cutaneous viral infections. Therefore, dermatologists should exercise caution in this regard.
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Affiliation(s)
- Yuko Higashi
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shinichi Imafuku
- Department of Dermatology, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Noriko Tsuruta
- Division of Dermatology, Kitakyushu City Yahata Hospital, Kitakyusyu, Japan
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2
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Yanase T, Tsuruta N, Yamaguchi K, Ohata C, Ohyama B, Katayama E, Sugita K, Kuwashiro M, Hashimoto A, Yonekura K, Higashi Y, Murota H, Koike Y, Matsuzaka Y, Kikuchi S, Hatano Y, Saito K, Takahashi K, Miyagi T, Kaneko S, Ota M, Harada K, Morizane S, Ikeda K, Furue M, Nakahara T, Okazaki F, Sasaki N, Okada E, Yoshida Y, Ito K, Imafuku S. Survival rates of systemic interventions for psoriasis in the Western Japan Psoriasis Registry: A multicenter retrospective study. J Dermatol 2023. [PMID: 36786158 DOI: 10.1111/1346-8138.16737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 12/27/2022] [Accepted: 01/15/2023] [Indexed: 02/15/2023]
Abstract
Psoriasis affects approximately 0.3% of the Japanese population. Recently, various effective systemic drugs have become available, and the continuation of a given treatment has become critical because of the chronic nature of psoriasis. Factors affecting drug survival (the time until treatment discontinuation) in psoriasis treatment include efficacy, safety, ease of use, and patient preference. In the present study, the authors retrospectively surveyed a multifacility patient registry to determine the real-world evidence of the survival rate of systemic interventions for psoriasis treatment. Patients with psoriasis who visited 20 facilities in the Western Japan area between January 2019 and May 2020 and gave written consent were registered as study participants, and their medical history of systemic interventions for psoriasis (starting from 2010) was retrospectively collected and analyzed. The drugs investigated were adalimumab, infliximab, ustekinumab, secukinumab, ixekizumab, brodalumab, guselkumab, risankizumab, cyclosporine, and apremilast. When drugs were discontinued, the reasons were also recorded. A total of 1003 patients with psoriasis including 268 with psoriatic arthritis (PsA) were enrolled. In biologics, more recently released drugs such as interleukin 17 inhibitors showed a numerically higher survival rate in the overall (post-2010) analysis. However, in the subset of patients who began treatment after 2017, the difference in the survival rate among the drugs was smaller. The reasons for discontinuing drugs varied, but a loss of efficacy against dermatological or joint symptoms were relatively frequently seen with some biologics and cyclosporine. The stratification of drug survival rates based on patient characteristics such as bio-naive or experienced, normal weight or obese, and with or without PsA, revealed that bio-experienced, obese, and PsA groups had poorer survival rates for most drugs. No notable safety issues were identified in this study. Overall, the present study revealed that the biologics show differences in their tendency to develop a loss of efficacy, and the factors that negatively impact the survival rate of biologics include the previous use of biologics, obesity, and PsA.
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Affiliation(s)
- Tetsuji Yanase
- Department of Dermatology, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima, Japan
| | - Noriko Tsuruta
- Department of Dermatology, Fukuoka University Faculty of Medicine, Fukuoka, Japan.,Department of Dermatology, Kitakyuhsu City Yahata Hospital, Kitakyushu, Japan
| | - Kazuki Yamaguchi
- Department of Dermatology, Fukuoka University Faculty of Medicine, Fukuoka, Japan.,Department of Dermatology, Saiseikai Futsukaichi Hospital, Fukuoka, Japan
| | - Chika Ohata
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan.,Department of Dermatology, Osaka General Medical Center, Osaka, Japan
| | - Bungo Ohyama
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan.,Ohyama Dermatology Clinic, Kumamoto, Japan
| | - Eri Katayama
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan
| | - Kazunari Sugita
- Division of Dermatology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan.,Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Tottori University Faculty of Medicine, Yonago, Japan
| | - Maki Kuwashiro
- Division of Dermatology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Aki Hashimoto
- Division of Dermatology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Kentaro Yonekura
- Department of Dermatology, Imamura General Hospital, Kagoshima, Japan
| | - Yuko Higashi
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Hiroyuki Murota
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yuta Koike
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yuki Matsuzaka
- Department of Dermatology, Onomichi General Hospital, Onomichi, Japan
| | - Satoko Kikuchi
- Department of Dermatology, Kyushu Central Hospital, Fukuoka, Japan
| | - Yutaka Hatano
- Department of Dermatology, Faculty of Medicine, Oita University, Yufu, Japan
| | - Kanami Saito
- Department of Dermatology, Faculty of Medicine, Oita University, Yufu, Japan
| | - Kenzo Takahashi
- Department of Dermatology, Graduate School of Medicine University of the Ryukyus, Nishihara, Japan
| | - Takuya Miyagi
- Department of Dermatology, Graduate School of Medicine University of the Ryukyus, Nishihara, Japan
| | - Sakae Kaneko
- Department of Dermatology, Shimane University Faculty of Medicine, Izumo, Japan.,Department of Dermatology, Masuda Red Cross Hospital, Masuda, Japan
| | - Masataka Ota
- Department of Dermatology, Shimane University Faculty of Medicine, Izumo, Japan
| | - Kayo Harada
- Department of Dermatology and Allergy, National Hospital Organization, Kyushu Medical Center, Fukuoka, Japan
| | - Shin Morizane
- Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Kenta Ikeda
- Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masutaka Furue
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takeshi Nakahara
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Fusako Okazaki
- Department of Dermatology, Okayama City General Medicine Center, Okayama, Japan
| | - Natsuko Sasaki
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Etsuko Okada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yuichi Yoshida
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Tottori University Faculty of Medicine, Yonago, Japan
| | - Kotaro Ito
- Department of Dermatology, Fukuoka University Faculty of Medicine, Fukuoka, Japan.,Ito Medical Clinic, Dermatology, Kitsuki, Japan
| | - Shinichi Imafuku
- Department of Dermatology, Fukuoka University Faculty of Medicine, Fukuoka, Japan
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Miyazaki S, Fujita K, Ozaki S, Ichiyama S, Ito M, Hoashi T, Kanda N, Saeki H. Active Tuberculosis in a Patient Receiving Adalimumab for Psoriatic Arthritis and Chemoprophylaxis for Latent Tuberculosis Infection. J NIPPON MED SCH 2023; 90:480-485. [PMID: 38246618 DOI: 10.1272/jnms.jnms.2023_90-610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Tumor necrosis factor (TNF) inhibitors, including adalimumab, are widely used to treat refractory psoriatic arthritis (PsA). Although isoniazid chemoprophylaxis is generally effective in preventing reactivation of latent tuberculosis infection (LTBI), prophylactic measures do not fully protect against development of active tuberculosis. We report a rare case of active tuberculosis despite chemoprophylaxis for LTBI in a patient receiving adalimumab for PsA. A 60-year-old Japanese woman who had received a diagnosis of psoriasis at age 35 years presented with arthralgia of the right hand, which she first noticed 2 months previously. Physical examination showed scattered erythematous papules and plaques with scales on her trunk, extremities, and scalp. Her right metacarpophalangeal and proximal interphalangeal joints were swollen and painful, and her right wrist and elbow were painful. PsA was diagnosed and adalimumab was initiated. Because an interferon-γ release assay (IGRA) showed a borderline result at screening, isoniazid was administered as chemoprophylaxis for LTBI. At 22 months after initiation of adalimumab, IGRA was positive and chest CT disclosed centrilobular nodules in both lungs and swelling of multiple lymph nodes. Culture of sputum at 24 months demonstrated Mycobacterium tuberculosis. Active tuberculosis was diagnosed, and treatment with a combination of isoniazid, rifampicin, ethambutol hydrochloride, and pyrazinamide was started. To ensure timely diagnosis and treatment of active tuberculosis, a tuberculosis expert should be consulted at an early stage, with regular screening and monitoring.
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Affiliation(s)
| | - Kazue Fujita
- Department of Pulmonary Medicine and Oncology, Nippon Medical School
| | - Saeko Ozaki
- Department of Dermatology, Nippon Medical School
| | | | - Michiko Ito
- Department of Dermatology, Nippon Medical School
| | | | - Naoko Kanda
- Department of Dermatology, Nippon Medical School Chiba Hokusoh Hospital
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Koo T, Baek G, Jue MS. Risk of tuberculosis infection and serial changes in interferon-gamma release assays in elderly patients with psoriasis receiving biologic therapy. J Dermatol 2022; 49:887-894. [PMID: 35619545 DOI: 10.1111/1346-8138.16471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/27/2022] [Accepted: 05/09/2022] [Indexed: 11/29/2022]
Abstract
Elderly patients constitute a significant proportion of patients with psoriasis. Nonetheless, treatment for older patients is more challenging than that for younger ones. Biologic agents are preferable to other systemic drugs for elderly patients with moderate-to-severe psoriasis owing to their high efficacy and favorable tolerability. However, there are limited data on tuberculosis infection risk in elderly patients with psoriasis receiving biologic therapy. This study aimed to evaluate the risk of active tuberculosis and latent tuberculosis infection, assess the serial interferon-gamma release assay results, and evaluate treatment compliance and adverse effects of latent tuberculosis infection treatment in elderly patients with psoriasis on biologic therapy. In this single-center retrospective study, medical charts of elderly patients (age ≥ 65 years) with psoriasis who were treated with a biologic agent (guselkumab, adalimumab, secukinumab, or ustekinumab) between January 2015 and December 2020 were reviewed. We analyzed the results of chest X-rays and those of whole-blood interferon-gamma release assays performed for latent tuberculosis infection screening at baseline (IGRA0) and subsequently at follow-up after initiating biologic therapy (IGRA1). In total, 90 patients underwent IGRA0; 46 (51.11%) of them had latent tuberculosis infection before starting biologic therapy. Overall, four and two patients experienced seroconversion and active tuberculosis during biologic therapy, respectively. The interferon-gamma release assay reversion rate was 29.1%, and the interferon-gamma level significantly decreased in all patients after latent tuberculosis infection treatment (p = 0.004). Latent tuberculosis infection treatment was well tolerated in elderly patients (completion rate, 100%). The risk of latent tuberculosis infection in elderly patients with psoriasis on biologic therapy was comparable to that previously reported for all age groups. However, the active tuberculosis rate was relatively higher.
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Affiliation(s)
- Taehan Koo
- Department of Dermatology, Veterans Health Service Medical Center, Seoul, Korea
| | - Gayun Baek
- Department of Dermatology, Veterans Health Service Medical Center, Seoul, Korea
| | - Mihn-Sook Jue
- Department of Dermatology, Hanyang University Hospital, Seoul, Korea
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Xiao Y, Chen H, Zou Q, Wang Y, Gu Y, Wang J, Yan W, Li W. The Tuberculosis Positive Conversion Rate Among Psoriasis Patients Treated with Adalimumab and Secukinumab: A Single-Center Retrospective Study in China. Dermatol Ther (Heidelb) 2022; 12:1493-1500. [PMID: 35616884 PMCID: PMC9133823 DOI: 10.1007/s13555-022-00745-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 05/10/2022] [Indexed: 02/08/2023] Open
Abstract
Introduction The tuberculosis (TB) positive conversion rate among psoriasis patients who received biologics has been reported worldwide, particularly in regions with low TB risk. Nonetheless, the TB-related safety of biologics such as adalimumab and secukinumab remains elusive in areas with high TB risk. According to the World Tuberculosis Report 2021, China is the country with the second highest TB burden, but data on TB conversion are also limited. Thus, we performed a retrospective, single-center study to profile the TB infection status conversion ratio among psoriasis patients treated with adalimumab and secukinumab in China. Methods Patients were enrolled between April 2019 and February 2021 from West China Hospital, Sichuan University. Baseline and relevant clinical information were summarized, and proper statistical analysis was used under different conditions. Results Five (5.43%) patients suffered TB conversion in the adalimumab group, two of whom developed active TB within the first 6 months. In the secukinumab group, four (5.26%) patients had TB positive conversion with no reports of active TB. Conclusion Our data show a relatively high rate of TB conversion among these psoriasis patients after mean treatment duration of 17.13 months. We recommend that, in patients who receive adalimumab, TB be reevaluated after the first 3 months and then monitored semiannually for the next 2 years. For patients treated with secukinumab, annual examination is sufficient.
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Affiliation(s)
- Yue Xiao
- Department of Dermatology and Venereology, Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Hui Chen
- West China School of Medicine, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Qin Zou
- Department of Dermatology and Venereology, Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.,West China School of Nursing, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yiyi Wang
- Department of Dermatology and Venereology, Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yuanxia Gu
- Department of Dermatology and Venereology, Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jinqiu Wang
- Department of Dermatology and Venereology, Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Wei Yan
- Department of Dermatology and Venereology, Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Wei Li
- Department of Dermatology and Venereology, Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
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Fernández-Ruiz M. Interleukin-12 and -23 Targeted Agents. INFECTIOUS COMPLICATIONS IN BIOLOGIC AND TARGETED THERAPIES 2022:199-217. [DOI: 10.1007/978-3-031-11363-5_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Tsuruta N, Imafuku S. Establishment of the Western Japan Psoriasis Registry and first cross-sectional analysis of registered patients. J Dermatol 2021; 48:1709-1718. [PMID: 34427347 DOI: 10.1111/1346-8138.16092] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/27/2021] [Accepted: 07/17/2021] [Indexed: 12/12/2022]
Abstract
The efficacy and safety of new psoriatic treatments are confirmed in clinical trials, but such clinical trial data are limited by the number and heterogeneity of patients. Furthermore, the prevalence and characteristics of psoriasis differ among racial groups. Therefore, it is important to obtain real-world evidence in specific regions. To identify the optimal systemic treatment for psoriatic patients in Western Japan, we established the Western Japan Psoriasis Registry (WJPR). This registry is led by a neutral physicians' league associated with university hospitals, general hospitals, and clinics that specialize in treatment of psoriasis. Systemically treated psoriatic patients who provided written informed consent were enrolled, and data were collected on their background information, several patient-reported outcomes, dermatologists' objective evaluations, and treatment regimens. Patient enrollment began in 2019, and 1394 patients had been recruited by the end of 2020. The prevalence of psoriatic arthritis was 27.2% and that of pustular psoriasis was 7.5%. The mean body mass index was 24.1 kg/m2 , and 12% of patients had severe obesity (body mass index ≥30 kg/m2 ). Major comorbidities were hypertension (35.0%), diabetes (14.1%), and hyperlipidemia (12.2%). Serological data showed that hepatitis B virus surface antigen, anti-hepatitis B virus core antibody, anti-hepatitis C virus antibody, and human T-cell leukemia virus type 1 antibody were detected in 1.1%, 18.0%, 3.1%, and 3.7% of patients, respectively. The most frequently used small-molecule-systemic intervention was apremilast (18.0%), followed by methotrexate (7.7%), etretinate (4.2%), and cyclosporin (3.7%). The most frequently used biologics were interleukin (IL)-17 inhibitors (31.8%), followed by IL-23 inhibitors (including IL-12/23 inhibitors) (26.7%), and tumor necrosis factor inhibitors (11.1%). The WJPR is the first Japanese prospective observational cohort of psoriatic patients. Annual WJPR updates may provide the incidences of comorbidities such as cardiovascular events or onset of arthritis in systemically treated patients, identify rare complications, and identify the optimal treatment regimens for various psoriatic patients.
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Affiliation(s)
- Noriko Tsuruta
- Department of Dermatology, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Shinichi Imafuku
- Department of Dermatology, Fukuoka University Faculty of Medicine, Fukuoka, Japan
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Yamana H, Iba A, Tomio J, Ono S, Jo T, Yasunaga H. Treatment of latent tuberculosis infection in patients receiving biologic agents. J Infect Chemother 2020; 27:243-249. [PMID: 33036893 DOI: 10.1016/j.jiac.2020.09.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 08/31/2020] [Accepted: 09/24/2020] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Treatment of latent tuberculosis infection is recommended in patients receiving biologics. However, evidence is weak regarding the efficacy of treatment regimens in this population, and the real-world practice pattern has not been elucidated. METHODS Using a large-scale health insurance claims database in Japan, we identified patients who started treatment of immune-mediated inflammatory diseases with tumor necrosis factor inhibitors or other biologics. Treatment with isoniazid within 12 months of starting a biologic was summarized to evaluate the duration of treatment for latent tuberculosis infection and the time between start of isoniazid and initiation of a biologic. RESULTS Among 2064 patients starting biologics, 10% received treatment for latent tuberculosis infection with isoniazid. Among the patients with biologics and isoniazid, isoniazid was started in the same month as initiating biologics or 1 month before in 82%. In addition to the recommended 6- and 9-month treatments, 20% of patients were receiving isoniazid at 12 months after starting treatment and 20% received a prescription for 350 days or more. CONCLUSIONS In patients starting biologics, treatment for latent tuberculosis infection was provided for different durations, including not only the recommended periods but also longer periods. Research on safety and effectiveness of the treatment in this population is necessary.
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Affiliation(s)
- Hayato Yamana
- Department of Health Services Research, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Arisa Iba
- Department of Public Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Jun Tomio
- Department of Public Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Sachiko Ono
- Department of Eat-loss Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Taisuke Jo
- Department of Health Services Research, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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Skin Mycobiome of Psoriasis Patients is Retained during Treatment with TNF and IL-17 Inhibitors. Int J Mol Sci 2020; 21:ijms21113892. [PMID: 32486022 PMCID: PMC7312082 DOI: 10.3390/ijms21113892] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 05/28/2020] [Indexed: 12/04/2022] Open
Abstract
Background: Biological treatment relieves refractory skin lesions in patients with psoriasis; however, changes in the fungal microbiome (the mycobiome) on the skin are unclear. Methods: The skin mycobiome of psoriasis patients treated with TNF inhibitors (TNFi, n = 5) and IL-17 inhibitors (IL-17i, n = 7) was compared with that of patients not receiving systemic therapy (n = 7). Skin swab samples were collected from non-lesional post-auricular areas. Fungal DNA was sequenced by ITS1 metagenomic analysis and taxonomic classification was performed. Results: An average of 37543 reads/sample were analyzed and fungi belonging to 31 genera were detected. The genus Malassezia accounted for >90% of reads in 7/7 samples from the no-therapy group, 4/5 from the TNFi group, and 5/7 from the IL-17i group. Biodiversity was low in those three groups. Few members of the genus trichophyton were detected; the genus Candida was not detected at all. Among the Malassezia species, M. restricta was the major species in 6/7 samples from the no-therapy group, 4/5 from the TNFi group, and 5/7 from the IL-17i group whose the other largest species revealed M. globosa. Conclusions: The mycobiome is retained on post-auricular skin during systemic treatment with TNF and IL-17 inhibitors.
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