Cardiac Contractility Modulation in Chagas Heart Disease
FIX-Chagas
Clinical and Functional Effects of Cardiac Contractility Modulation in Chagas Heart Disease: a Randomized Study - Contractility - FIX-Chagas
1 other identifier
interventional
60
1 country
1
Brief Summary
Chagas disease is an endemic problem in Latin America, where millions of people are chronically infected with T. cruzi. Recently, it was assumed to have clinical and epidemiological relevance in several other countries due to migratory and globalizing social factors. CCC occurs in 30-50% of infected individuals, causing considerable morbidity/mortality rates. Heart failure is the most prevalent morbidity. While CRT and drug treatment have been advocated and implemented without much success to improve the clinical condition of patients with CCC, there is no consistent scientific evidence on the role of cardiac contractility modulation (CCM) as a form of adjuvant treatment for heart failure in patients with CCC. The hypothesis of this study is that patients with CCC, advanced heart failure, severe systolic dysfunction, and non-LBB have better clinical and functional responses when undergoing implantation of a CCM device than when undergoing cardiac resynchronization therapy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started May 2022
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 25, 2022
CompletedFirst Submitted
Initial submission to the registry
August 10, 2022
CompletedFirst Posted
Study publicly available on registry
August 29, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2026
April 4, 2025
April 1, 2025
4.6 years
August 10, 2022
April 2, 2025
Conditions
Outcome Measures
Primary Outcomes (4)
QoL Score
KCCQS - Kansas City cardiomyopathy quality score
At baseline
QoL Score
KCCQS - Kansas City cardiomyopathy quality score
At 6 months
GLS
Global longitudinal strain at rest/effort - (tissue tracking)
At baseline
GLS
Global longitudinal strain at rest/effort - (tissue tracking)
At 6 months
Secondary Outcomes (7)
6MWT
At baseline
6MWT
At 6 months
NYHAFC
At baseline
NYHAFC
At 6 months
LVEF
At baseline
- +2 more secondary outcomes
Study Arms (2)
Cardiac Contractility Modulation Group - CCM Group
EXPERIMENTALCCM implantation.
Cardiac Resynchronization Therapy Group - CRT Group
ACTIVE COMPARATORCRT implantation
Interventions
Cardiac Contractility Modulation (CCM) implantation
Eligibility Criteria
You may qualify if:
- Signing of an informed consent form (ICF) before randomization and any study procedure,
- Both genders, age \>18 years and \<75 years,
- Recent positive (last two years) and documented serology for Chagas disease, in at least two different tests (indirect hemagglutination, indirect immunofluorescence, or ELISA),
- NYHA II-III heart failure functional class,
- LVEF\< 35%,
- Non left bundle branch block
- Intraventricular desynchrony (Yu index)
- Global longitudinal strain \>11 %.
You may not qualify if:
- Participation in another study, presently or terminated \<1 year ago, except for a totally unrelated observational study,
- Other concomitant cardiovascular diseases, including uncontrolled diabetes mellitus (systemic arterial hypertension without permitted target organ compromise),
- Kidney dysfunction (serum creatinine \>1.5mg/dL or eGFR \<30mL/min/1.73m2) or liver dysfunction, with diagnosis of cirrhosis or portal hypertension or elevated serum enzymes (AST or ALT) \> 3x the upper limit of normality,
- Moderate or severe chronic obstructive pulmonary disease,
- Peripheral polyneuropathy,
- Hyperthyroidism,
- Current alcoholism or not abandoned for \>2 years,
- Diagnosed with psychopathy or psychosis or addiction to illicit drugs,
- Life expectancy \<1 year, due to the disease itself or comorbidities (including NYHA class IV),
- Pregnancy or breastfeeding,
- Potential to become pregnant during the study (non-menopausal patients who have not undergone a radical and safe contraceptive process),
- Previously withdrawn from this study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- InCor Heart Institutelead
- Impulse Dynamicscollaborator
- I2medi Comercial Medica LTDAcollaborator
Study Sites (1)
InCor - HCFMUSP
SĂ£o Paulo, SĂ£o Paulo, 05403-900, Brazil
Related Publications (32)
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PMID: 4994717BACKGROUNDPinto Dias JC. [Natural history of Chagas disease]. Arq Bras Cardiol. 1995 Oct;65(4):359-66. No abstract available. Portuguese.
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PMID: 20399979BACKGROUNDDias JC. The indeterminate form of human chronic Chagas' disease A clinical epidemiological review. Rev Soc Bras Med Trop. 1989 Jul-Sep;22(3):147-56. doi: 10.1590/s0037-86821989000300007.
PMID: 2486527BACKGROUNDBarretto AC, Ianni BM. The undetermined form of Chagas' heart disease: concept and forensic implications. Sao Paulo Med J. 1995 Mar-Apr;113(2):797-801. doi: 10.1590/s1516-31801995000200010.
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PMID: 19168514BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
August 10, 2022
First Posted
August 29, 2022
Study Start
May 25, 2022
Primary Completion (Estimated)
December 31, 2026
Study Completion (Estimated)
December 31, 2026
Last Updated
April 4, 2025
Record last verified: 2025-04
Data Sharing
- IPD Sharing
- Will not share