Recruiting October 2003 – February 2004

RAPIDS-2

A RAndomized, double-blind, Placebo-controlled, multi-center study to assess the effect of bosentan on healing and prevention of Ischemic Digital ulcers in patients with systemic Sclerosis.

Sponsor: Actelion Pharmaceuticals Ltd

Principal Investigators:   (J. Korn, Boston University and J. Seibold, UMDNJ)

Study drug: Bosentan 125 mg b.i.d.

 

Design: Multicenter, randomized, double-blind, placebo-controlled, phase III study.

 

 

Outcome Measures:
 

Primary             – Time to healing of the cardinal ulcer

 – Number of new digital ulcers during the treatment period.

 

Secondary         – Hand functionality indices.

– Hand pain


 

Patient Selection Criteria:

 

Inclusion Criteria (main):

Cardinal ulcers are ulcers that are > 1 week and < 3 months old, on the fingertip or ventral finger surface.  Eligibility will be determined at study site.

Exclusion Criteria (main):

Centers involved (site participation depends on IRB/ regulatory approval):

USA

Canada

Europe

 

Time Line:


To date, one clinical trial, RAPIDS-1, has been performed in the same indication including scleroderma patients with or without digital ulcers at baseline. The RAPIDS-1 study showed that bosentan reduces significantly the number of new digital ulcers versus placebo. The safety profile of bosentan observed in the RAPIDS-1 study was similar to that observed in pulmonary hypertension, an indication currently approved in the countries where the RAPIDS-2 study is performed.

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