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Gulliver W, Alavi A, Wiseman MC, Gooderham MJ, Rao J, Alam MS, Papp KA, Desjardins O, Jean C. Real-world effectiveness of adalimumab in patients with moderate-to-severe hidradenitis suppurativa: the 1-year SOLACE study. J Eur Acad Dermatol Venereol 2021; 35:2431-2439. [PMID: 34378812 PMCID: PMC9291024 DOI: 10.1111/jdv.17598] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/16/2021] [Indexed: 01/15/2023]
Abstract
BACKGROUND Long-term, real-word data are needed to help manage patients with hidradenitis suppurativa (HS) through this recurrent, painful and debilitating disease. OBJECTIVES To primarily measure real-world effectiveness of adalimumab in HS and to secondarily observe clinical course of HS in the light of patients' response. METHODS In SOLACE, adults with moderate-to-severe HS in need for change in ongoing therapy were treated with adalimumab for up to 52 weeks as per physician's medical practice. Treatment effectiveness was measured by Hidradenitis Suppurativa Clinical Response (HiSCR). Inflammatory nodules, abscesses and draining fistulas were counted, Hurley stage was assessed, and disease severity was rated using the International HS Severity Scoring System (IHS4). A post hoc analysis further explored the HiSCR response by abscess and inflammatory nodule (AN) count at baseline (low, medium and high) and gender. Spontaneously reported safety events were collected. RESULTS From 23 Canadian centres, 69% of the 138 patients achieved HiSCR at week 24, which increased to 82% and 75% at week 52 in patients with medium and high AN counts, respectively. Gender (4 times the odds for female) and age at HS onset (5% decrease with each additional year) had an effect on achieving HiSCR. Treatment with adalimumab led to an important decrease in number of lesions in responders, with most gains observed in inflammatory nodules, more frequently in the lower body area of patients in the high AN count group. The IHS4 scores of responders were substantially lowered, with a larger decrease in patients of the high AN count group. No new safety signal was detected. CONCLUSIONS The effectiveness of adalimumab was maintained during this 1-year period, and an optimal gain was documented for patients with medium and high AN counts. These real-world data support a prompt treatment of HS patients and the use of IHS4 to monitor treatment.
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Affiliation(s)
- W Gulliver
- NewLab Clinical Research Inc., St. John's, NL, Canada.,Faculty of Medicine, Memorial University of Newfoundland, St. John's, NL, Canada
| | - A Alavi
- Department of Dermatology, Mayo Clinic, Rochester, MN, USA.,Probity Medical Research Inc., Waterloo, ON, Canada
| | - M C Wiseman
- Probity Medical Research Inc., Waterloo, ON, Canada.,Wiseman Dermatology Research, Winnipeg, MB, Canada.,Section of Dermatology, Department of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - M J Gooderham
- Probity Medical Research Inc., Waterloo, ON, Canada.,SKiN Centre for Dermatology, Peterborough, ON, Canada
| | - J Rao
- Clinical Professor of Medicine, Division of Dermatology, University of Alberta, Edmonton, AB, Canada
| | - M S Alam
- Probity Medical Research Inc., Waterloo, ON, Canada.,SimcoMed Health Ltd, Barrie, ON, Canada
| | - K A Papp
- Probity Medical Research Inc., Waterloo, ON, Canada.,Kim Papp Clinical Research, Waterloo, ON, Canada
| | | | - C Jean
- AbbVie Corporation, Saint-Laurent, QC, Canada
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Wiseman MC, Shapiro J, MacDonald N, Lui H. Predictive model for immunotherapy of alopecia areata with diphencyprone. Arch Dermatol 2001; 137:1063-8. [PMID: 11493099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
BACKGROUND Immunotherapy with diphencyprone (diphenylcyclopropenone) is used in the treatment of alopecia areata (AA). Response rates have varied in the literature. OBJECTIVES To determine the efficacy of diphencyprone therapy for AA in the largest reported cohort of patients; to identify patient and treatment factors predictive of therapeutic success; and to develop a practical model for predicting patient response. METHODS The medical records of 148 consecutive patients treated with diphencyprone were reviewed. A clinically significant response to diphencyprone therapy was defined as a cosmetically acceptable response or greater than 75% terminal hair regrowth. Survival analyses using the Kaplan-Meier method and the Cox proportional hazards model were performed to determine significant factors predictive of regrowth and relapse. RESULTS Using a survival analysis model, the cumulative patient response at 32 months was 77.9% (95% confidence interval, 56.8%-98.9%). Variables independently associated with clinically significant regrowth were age at onset of disease and baseline extent of AA. Older age at onset of AA portended a better prognosis. A cosmetically acceptable end point was obtained in 17.4% of patients with alopecia totalis/universalis, 60.3% with 75% to 99% AA, 88.1% with 50% to 74% AA, and 100% with 25% to 49% AA. A lag of 3 months was present between initiation of therapy and development of significant hair regrowth in the first responders. Relapse after achieving significant regrowth developed in 62.6% of patients. CONCLUSIONS Response to diphencyprone treatment in AA is affected by baseline extent of AA and age at disease onset. A prolonged treatment course might be necessary. A predictive model has been developed to assist with patient prognostication and counseling.
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Affiliation(s)
- M C Wiseman
- Division of Dermatology, Vancouver General Hospital, University of British Columbia, 835 W 10th Ave, Vancouver, British Columbia, Canada V5Z 4E8
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Wiseman MC, Orr PH, Macdonald SM, Schroeder ML, Toole JW. Actinic prurigo: Clinical features and HLA associations in a Canadian Inuit population. J Am Acad Dermatol 2001; 44:952-6. [PMID: 11369906 DOI: 10.1067/mjd.2001.112579] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND Actinic prurigo (AP) is an idiopathic familial photodermatitis. AP of the Inuit is rarely reported and poorly characterized. OBJECTIVE Our purpose was to examine the clinical features and HLA associations of AP in an Inuit population. METHODS Thirty-seven Inuit subjects with AP were administered a questionnaire and underwent a cutaneous examination. Other causes of photosensitivity were excluded. HLA class I typing was performed by polymerase chain reaction and sequence-specific primers and class II typing by polymerase chain reaction and sequence-specific oligonucleotide probes. RESULTS Subjects were 81.1% female, 67.6% had a family history of photosensitivity, and all experienced seasonal variation. The average age at onset of photosensitivity was 29 years, and only 27% had a trend toward improvement in photosensitivity. Involvement of eyes and nonexposed skin was reported in 62.2% and 18.9% of subjects, respectively. Physical examination revealed involvement of the face (64.9%), lip (32.4%), ear (13.5%), and dorsal aspect of the hand (24.3%). HLA-DRB1*14 was present in 51.2% of subjects and 26.2% of controls (P =.022, odds ratio = 2.975). This is a previously unreported HLA association. CONCLUSION AP in the Inuit is a seasonal, pruritic photodermatitis, often commencing in adulthood and worsening over time. A novel association with HLA-DRB1*14 has been discovered. Overall, this novel HLA association, the absence of HLA associations previously reported in non-Inuit populations, and clinical distinguishing features support the concept that AP in the Inuit may have a distinct immunopathogenic basis that translates into a different phenotype. It also raises the question of whether AP in the Inuit is a distinct photosensitivity disorder specific to this group that has been genetically isolated because of geographic and cultural seclusion.
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Affiliation(s)
- M C Wiseman
- Section of Dermatology, University of Manitoba, Winnipeg, Canada
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