Digital Flow Enhancement in Raynaud's Phenomenon With an sGC (Soluble Guanylate Cyclase) Stimulator
DIGIT
Single Dose, Double-blind, Placebo-controlled, Single Center, Randomized Cross-over Study to Investigate Safety, Tolerability, Pharmacodynamics and Pharmacokinetic Properties of BAY63-2521 After Oral Dosing in 20 Patients With Raynaud's Phenomenon (RP)
2 other identifiers
interventional
23
1 country
1
Brief Summary
Patients with Raynaud's phenomenon suffer from painful attacks triggered by stress or cold causing acute lowering of blood flow through the digits. In this trial the safety and efficacy as well as the effect of one dose of the sGC stimulator Riociguat on digital blood flow will be measured during a cold exposure test in patients suffering from Raynaud's phenomenon. Measurements of two periods will be compared: in one period the patient will be given active drug and in the other period a placebo.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Oct 2013
Shorter than P25 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 19, 2013
CompletedFirst Posted
Study publicly available on registry
August 21, 2013
CompletedStudy Start
First participant enrolled
October 1, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2014
CompletedJune 16, 2014
June 1, 2014
8 months
August 19, 2013
June 13, 2014
Conditions
Keywords
Outcome Measures
Primary Outcomes (7)
Number of participants with adverse events as a measure of safety and tolerability
5 weeks
Blood pressure
5 weeks
Pulse rate
5 weeks
Incidence of participants showing changes during clinical laboratory and hematology assessment
From baseline to 5 weeks
Plasma concentration at 2 h after riociguat administration
After 2 hours
Placebo corrected change in digital blood flow at room temperature, measured by Laser Doppler Perfusion Imaging
At baseline and after 2h
Placebo corrected change in digital blood flow during cold exposure, measured by Laser Doppler Perfusion Imaging
At baseline and after 2h
Study Arms (2)
Riociguat+Placebo
EXPERIMENTALRandomization order 1: first single oral dose of 2 mg BAY63-2521, then matching placebo
Placebo+Riociguat
EXPERIMENTALRandomization order 2: first matching placebo, then single oral dose of 2 mg BAY63-2521
Interventions
Eligibility Criteria
You may qualify if:
- Patients suffering from Raynaud's phenomenon diagnosed at least ≥1 year before beginning of the study of the following origin:
- idiopathic (primary)
- limited cutaneous Scleroderma associated
- diffuse cutaneous Scleroderma associated
- mixed connective tissue disease associated
You may not qualify if:
- Patients taking medication interfering with the digital flow measurement such as calcium channel blockers (CCB), phosphodiesterase 5 (PDE5) inhibitors, endothelin receptor antagonists (ERA), Nitrates
- Smokers
- Systolic blood pressure (SBP) below 105mmHg at rest
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Bayerlead
Study Sites (1)
Unknown Facility
Cologne, North Rhine-Westphalia, 50931, Germany
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Bayer Study Director
Bayer
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 19, 2013
First Posted
August 21, 2013
Study Start
October 1, 2013
Primary Completion
June 1, 2014
Study Completion
June 1, 2014
Last Updated
June 16, 2014
Record last verified: 2014-06