Efficacy and Safety of Riociguat in Patients With Systemic Sclerosis
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|ClinicalTrials.gov Identifier: NCT02283762|
Recruitment Status : Completed
First Posted : November 5, 2014
Results First Posted : January 25, 2019
Last Update Posted : April 17, 2019
|Condition or disease||Intervention/treatment||Phase|
|Scleroderma, Systemic||Drug: Riociguat (Adempas, BAY63-2521) Drug: Placebo||Phase 2|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||121 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Double (Participant, Investigator)|
|Official Title:||A Randomized, Double-Blind, Placebo-Controlled Phase II Study to Investigate the Efficacy and Safety of Riociguat in Patients With Diffuse Cutaneous Systemic Sclerosis (dcSSc)|
|Actual Study Start Date :||January 15, 2015|
|Actual Primary Completion Date :||December 15, 2017|
|Actual Study Completion Date :||March 28, 2019|
Main treatment phase of 52 weeks: participants received increasing doses of riociguat by 0.5 mg every 2 weeks up to 2.5 mg 3 times a day (TID) in a-titration period of up to 10 weeks and a maintenance period of up to 42 weeks. Long-term extension phase: starting after the completion of the Main Treatment Phase in Week 52, participants received sham-titration in a dose-titration period of up to 10 weeks followed by a maintenance period.
Drug: Riociguat (Adempas, BAY63-2521)
Starting dose 0.5 mg TID, increase by 0.5 mg very 2 weeks until highest possible dose of 2.5 mg TID
Placebo Comparator: Placebo
Main treatment phase of 52 weeks: participants received matching placebo tablets to riociguat as sham titration in a dose-titration period up to 10 weeks and a maintenance period of up to 42 weeks. Long-term extension phase: starting after the completion of the Main Treatment Phase in Week 52, participants received increasing doses of riociguat by 0.5 mg every 2 weeks up to 2.5 mg 3 times a day (TID) in a dose-titration period of up to 10 weeks followed by a maintenance period.
- Change From Baseline in Modified Rodnan Skin Score (mRSS) to Week 52 [ Time Frame: Baseline to week 52 ]The mRSS is a validated physical examination method for estimating skin thickness. It correlates with biopsy measures of collagen in the dermis and reflects prognosis and visceral involvement, especially in early disease. It is scored on 0 (normal) to 3+ (severe induration) ordinal scales over 17 body areas, with a maximum score of 51 (higher score means worse situation) and is used to categorize severity of SSc. A decrease in the mean change of mRSS shows mRSS improved.
- CRISS (American College of Rheumatology Composite Response Index for Clinical Trials) at Week 52 Reported as Number of Participants With a CRISS Probability >=0.60 or <0.60 From Baseline to Week 52 [ Time Frame: Week 52 ]CRISS forms a composite response index consisting of SSc-related organ involvement and the following five variables: mRSS, FVC percent predicted, physician's and patient's global assessments, and HAQ-DI score (from SHAQ patient-reported outcome). The resulting index is a 2-step process that captures clinically meaningful worsening of internal organ involvement and the core variables that show change. Patients for whom the predicted CRISS probability was ≥ 0.60 were considered improved, while patients for whom the predicted probability was < 0.60 were considered not improved.
- Change From Baseline in Health Assessment Questionnaire Disability Index (HAQ-DI) Score to Week 52 [ Time Frame: Baseline to week 52 ]The HAQ-DI is a composite measure from which a 'Standard Disability Index' score can be computed to assess a patient's disability level. Generally, a score of 0-1 represents mild to moderate difficulty, 1-2 moderate to severe disability and 2-3 severe to very severe disability. The HAQ-DI comprises 20 items that assess patient abilities across 8 functional activities: dressing, rising, eating, walking, hygiene, reach, grip, and usual activities. Each item is rated on a 4-point scale: 0=Without ANY difficulty, 1=With SOME difficulty, 2=With MUCH difficulty, 3=UNABLE to do. The 8 scores of the 8 sections are summed and divided by 8. In the event that one section is not completed by a subject then the summed score would be divided by 7. The final overall HAQ-DI score ranges from 0 to 3 and positive change indicates worse health-related quality of life (HRQoL).
- Change From Baseline in Patient's Global Assessment Score to Week 52 [ Time Frame: Baseline to week 52 ]The patient's global assessments (a self-report) quantified the overall disease activity or severity of SSc, with scores ranging from 0 (good) to 10 (worse). Positive change in the patient's global assessments score indicates worsening.
- Change From Baseline in Physician's Global Assessment Score to Week 52 [ Time Frame: Baseline to week 52 ]The physician's global assessments (reported by the physician) quantified the overall disease activity or severity of SSc, with scores ranging from 0 (good) to 10 (worse). Positive change in the physician's global assessments score indicates worsening.
- Change From Baseline in Forced Vital Capacity (FVC) Percent Predicted to Week 52 [ Time Frame: Baseline to week 52 ]Negative change in FVC percent predicted indicates worsening.
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Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02283762
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|Study Director:||Bayer Study Director||Bayer|