Clinical Assessment, Neuroimaging and Immunomarkers in Chagas Disease Study (CLINICS) (CLINICS)
The main purpose of the study is to determine noninvasive markers of brain involvement in Chagas disease. In a subgroup of patients with high intensity transient signals (HITS) on transcranial Doppler monitorization, the investigators aim to determine the efficacy and safety of aspirin in preventing microembolization in patients with no previous history of stroke. Specific aims are listed bellow:
(1) to establish brain magnetic resonance imaging markers of stroke risk in patients with Chagasic heart failure (HF); (2) to determine whether biomarkers can predict stroke risk in patients with Chagasic HF; and (3) to evaluate the efficacy of antiplatelet treatment in decreasing microembolization rate in patients with Chagasic HF.
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Outcomes Assessor)
Primary Purpose: Treatment
|Official Title:||CHADSS: Chagas Disease Scan Study|
- Brain magnetic resonance imaging lesions [ Time Frame: Baseline cross-sectional data ]Primary hypothesis is that silent brain infarcts, brain atrophy and white matter disease will be more common in patients with Chagas disease heart failure when compared to other etiologies of heart failure.
- Biomarkers [ Time Frame: Baseline cross-sectional data ]Primary hypothesis is that serum biomarkers orosomucoid, neprilysin, interleukin-6 and matrix metalloproteinase-9 will be increased in Chagas disease heart failure when compared to other etiologies of heart failure
- Proportion of high intensity transient signals on transcranial Doppler monitorization [ Time Frame: One week ]Primary hypothesis is that the proportion of patients with high intensity transient signals (HITS) on one-hour transcranial Doppler monitorization after one-week treatment with 300mg aspirin and best medical treatment will be less when compared with best medical treatment without aspirin
|Study Start Date:||July 2012|
|Estimated Study Completion Date:||September 2016|
|Estimated Primary Completion Date:||September 2016 (Final data collection date for primary outcome measure)|
Active Comparator: Aspirin
Aspirin 300mg per day for 7 days in patients with HITS on transcranial Doppler monitorization
No Intervention: Best medical treatment
Best medical treatment including drugs for heart failure and hypertension will be given to both groups.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01650792
|Contact: Jamary Oliveira-Filho, MD, PhDemail@example.com|
|Hospital Universitario Professor Edgard Santos||Recruiting|
|Salvador, Bahia, Brazil, 40110060|
|Principal Investigator: Jamary Oliveira-Filho, MD, PhD|
|Principal Investigator:||Jamary Oliveira-Filho, MD, PhD||Associate Professor, Federal University of Bahia|