Condition 1: Beta-thalassemia major. Condition 2: Myocardial siderosis. Condition 3: Hepatic iron load. Condition 4: Ferritin serum level. Beta thalassemia major Heart disease, unspecified Other specified diseases of liver Other specified abnormal findings of blood chemistry
Conditions
Interventions
Intervention 1: Intervention group:Patients in the intervention group will receive one oral tablet of amlodipine daily for a period of 12 months. The dosage will be 5 mg for patients weighing =30 kg a
Sponsors
Shahid Beheshti University of Medical Sciences
Eligibility
Sex/Gender
All
Age
8 Years to No maximum
Inclusion criteria
Inclusion criteria: Patients with ß-thalassemia major = 8 years old Increased myocardial iron overload
Exclusion criteria
Exclusion criteria: Known hypersensitivity or allergy to amlodipine Unwillingness to take the study medication Unwillingness to participate in the study Inability or unwillingness to follow study instructions (poor compliance)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Cardiac iron measured by MRI-T2*. Timepoint: Myocardial iron deposition is measured at the baseline (before the intervention) and 12 months after the administration of amlodipine. Method of measurement: cardiac MRI (T2*- MRI). | — |
Secondary
| Measure | Time frame |
|---|---|
| Left ventricular ejection fraction measured by echocardiography. Timepoint: Cardiac indices are measured at the baseline (before the intervention) and 12 months after the administration of amlodipine. Method of measurement: echocardiography.;Hepatic iron load measured by MRI. Timepoint: Hepatic iron deposition is measured at the baseline (before the intervention) and 12 months after the administration of amlodipine. Method of measurement: liver MRI.;Serum ferritin level. Timepoint: Serum ferritin level is measured at the baseline (before the intervention) and 12 months after the administration of amlodipine. Method of measurement: ELISA.;Left ventricular end-diastolic volume measured by echocardiography. Timepoint: Cardiac indices are measured at the baseline (before the intervention) and 12 months after the administration of amlodipine. Method of measurement: echocardiography.;Left ventricular end-systolic volume measured by echocardiography. Timepoint: Cardiac indices are measured at the baseline (before the intervention) and 12 months after the administration of amlodipine. Method of measurement: echocardiography.;Early (E) to late (A) ventricular filling velocities (E/A ratio) measured by echocardiography. Timepoint: Cardiac indices are measured at the baseline (before the intervention) and 12 months after the administration of amlodipine. Method of measurement: echocardiography.;Mitral annular velocity (e’) measured by echocardiography. Timepoint: Cardiac indices are measured at the baseline (before the intervention) and 12 months after the administration of amlodipine. Method of measurement: echocardiography. | — |
Countries
Iran (Islamic Republic of)
Contacts
Public ContactSamin Alavi
Shahid Beheshti University of Medical Sciences
Outcome results
None listed