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Digital Ulceration (CAP)

This study has been completed.
Information provided by (Responsible Party):
Actelion Identifier:
First received: June 17, 2011
Last updated: July 11, 2013
Last verified: July 2013
The CAP study is a multicenter, observational, clinical study in patients with systemic sclerosis. The study aims at determining the usefulness of nailfold videocapillaroscopy and patient-specific disease-related factors in predicting the occurrence of digital ulcers within a 6-month observation period. Patients with cutaneous forms of systemic sclerosis (limited or diffuse), with or without history of digital ulceration are eligible. The study will enroll 500 patients at 70 centers.

Systemic Sclerosis Digital Ulcers

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: A Multicenter, Prospective Cohort Study Using Nailfold VideoCAPillaroscopy(NVC) and Other Factors to Determine the Risk of Developing Digital Ulceration in Patients With Systemic Sclerosis (SSc)

Resource links provided by NLM:

Further study details as provided by Actelion:

Primary Outcome Measures:
  • Occurence of first new digital ulcer (DU) [ Time Frame: 6 months ]
    Occurrence of the first new digital ulcer (DU) within 6 months

Enrollment: 630
Study Start Date: January 2011
Study Completion Date: August 2012
Primary Completion Date: July 2012 (Final data collection date for primary outcome measure)
SSc DU-history subgroup
Systemic sclerosis patients with history of digital ulcers
SSc with No-DU-history subgroup
Systemic sclerosis patients with no history of digital ulcers


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients with Systemic Sclerosis with or without a history of digital ulcers (DU)

Inclusion Criteria:

For all patients:

  • Signed informed consent prior to enrollment
  • Male or female, ≥ 18 years of age
  • Diagnosis of systemic sclerosis (SSc) according to the American College of Rheumatology and/or limited cutaneous SSc or diffuse cutaneous SSc according to LeRoy criteria

For patients with no history of digital ulcers (DU) and no DU at enrollment only:

- Enrollment must be within 2 years of the first physician-documented non-Raynaud clinical feature

Exclusion Criteria:

  • SSc sine scleroderma (without any skin involvement)
  • Patients who underwent stem cell transplantation
  • Participation in interventional clinical trials within 3 months prior to enrollment and/or during the study
  • Inability to undergo Nailfold Videocapillaroscopy (NVC) assessment (e.g., inability to extend fingers sufficiently)
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01377090

  Show 50 Study Locations
Sponsors and Collaborators
  More Information

Responsible Party: Actelion Identifier: NCT01377090     History of Changes
Other Study ID Numbers: AC-052-521
Study First Received: June 17, 2011
Last Updated: July 11, 2013

Additional relevant MeSH terms:
Scleroderma, Systemic
Scleroderma, Diffuse
Pathologic Processes
Connective Tissue Diseases
Skin Diseases processed this record on August 16, 2017