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of the trial
A randomized, double-blind, placebo-controlled, multicentre proof-of-concept trial of IVA337 in the treatment of diffuse cutaneous systemic sclerosis

To learn more about this study, you may contact the study research staff:
Mari Carmen DELATTE

Trial Rationale

IVA337 potentially offers a new therapeutic approach for DcSSc for which no curative treatment is available: patients with DcSSc suffer from a high risk of premature mortality and have considerable morbidity from their disease due to skin fibrosis and excessive collagen deposition in various organs including the lungs, kidney, heart and gastrointestinal tract.

Choice of the study population The EUSTAR network has recently reported that low mRSS at baseline was a consistent predictor of skin fibrosis worsening in patients with early DcSSc. Indeed, patients with DcSSc who have a baseline mRSS of 7–22 (out of 51) were most likely to have progression of skin fibrosis, whereas patients with higher scores rarely progressed.
Capturing patients with skin progression is of paramount importance for increasing the possibility to differentiate an efficient drug from placebo in a clinical trial measuring skin changes. This finding is of importance for study design, as it strongly supports the existence of a therapeutic window of opportunity for patients with early DcSSc.

Therefore, the targeted population in this trial is patients with SSc fulfilling the criteria of the DcSSc subset, of less than 3 years of disease duration and with baseline mRSS of 10 to 25.


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