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Anti-tumour necrosis factor therapy for Dupuytren's Disease: a randomised dose response proof of concept phase 2a clinical trial

Nanchahal, Jagdeep, Ball, Catherine, Davidson, Dominique, Williams, Lynn, Sones, William, McCann, Fiona E., Cabrita, Marisa, Swettenham, Jennifer, Cahoon, Neil J., Copsey, Bethan, Francis, E. Anne, Taylor, Peter C., Black, Joanna, Barber, Vicki S., Dutton, Susan, Feldmann, Marc and Lamb, Sarah E. 2018. Anti-tumour necrosis factor therapy for Dupuytren's Disease: a randomised dose response proof of concept phase 2a clinical trial. EBioMedicine 33 , pp. 282-288. 10.1016/j.ebiom.2018.06.022

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Abstract

Background Dupuytren's disease is a common fibrotic condition of the hand that causes irreversible flexion contractures of the fingers, with no approved therapy for early stage disease. Our previous analysis of surgically-excised tissue defined tumour necrosis factor (TNF) as a potential therapeutic target. Here we assessed the efficacy of injecting nodules of Dupuytren's disease with a TNF inhibitor. Methods Patients were randomised to receive adalimumab on one occasion in dose cohorts of 15 mg in 0.3 ml, 35 mg in 0.7 ml, or 40 mg in 0.4 ml, or an equivalent volume of placebo in a 3:1 ratio. Two weeks later the injected tissue was surgically excised and analysed. The primary outcome measure was levels of mRNA expression for α-smooth muscle actin (ACTA2). Secondary outcomes included levels of α-SMA and collagen proteins. The trial was registered with ClinicalTrial.gov (NCT03180957) and the EudraCT (2015-001780-40). Findings We recruited 28 patients, 8 assigned to the 15 mg, 12 to the 35 mg and 8 to the 40 mg adalimumab cohorts. There was no change in mRNA levels for ACTA2, COL1A1, COL3A1 and CDH11. Levels of α-SMA protein expression in patients treated with 40 mg adalimumab (1.09 ± 0.09 ng per μg of total protein) were significantly lower (p = 0.006) compared to placebo treated patients (1.51 ± 0.09 ng/μg). The levels of procollagen type I protein expression were also significantly lower (p < 0.019) in the sub group treated with 40 mg adalimumab (474 ± 84 pg/μg total protein) compared with placebo (817 ± 78 pg/μg). There were two serious adverse events, both considered unrelated to the study drug. Interpretation In this dose-ranging study, injection of 40 mg of adalimumab in 0.4 ml resulted in down regulation of the myofibroblast phenotype as evidenced by reduction in expression of α-SMA and type I procollagen proteins at 2 weeks. These data form the basis of an ongoing phase 2b clinical trial assessing the efficacy of intranodular injection of 40 mg adalimumab in 0.4 ml compared to an equivalent volume of placebo in patients with early stage Dupuytren's disease.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Centre for Trials Research (CNTRR)
Medicine
Publisher: Elsevier
ISSN: 2352-3964
Funders: Wellcome Trust and Department of Health
Date of First Compliant Deposit: 6 July 2018
Date of Acceptance: 19 June 2018
Last Modified: 13 Jun 2019 11:07
URI: http://orca.cf.ac.uk/id/eprint/113010

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