About this trial
A prospective, single-arm, intervention study of oral alendronate in adults with sickle cell disease and osteonecrosis
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age 18-80 years with SCD (any genotype, confirmed by hemoglobin electrophoresis or high performance liquid chromatography)
Ability to provide written informed consent
Ability to lay on a dual-energy X-ray absorptiometry (DXA) scanner
Negative urine pregnancy test for anyone of childbearing potential at study entry
Disqualifiers
Pregnant women
Adults unable to consent
Individuals who are not yet adults (infants, children, teenagers)
Prisoners
Trial design
Single group
Treatments tested in this trial
Alendronate Sodium
DrugAdminister oral alendronate 70 mg once a week x 24 weeks to all study participants
Treatment groups
Trial outcomes
Primary outcomes
Recruitment and retention rates
Proportion of eligible patients who get recruited to the study; number of enrolled patients who complete 6-month study
Incidence of Treatment-Emergent Adverse Events as assessed by participant report
Collect all adverse events reported by patients and determine if related to study drug
Pain assessed by the Adult Sickle Cell Quality of Life Measurement System (ASCQ-Me) Pain Impact questionnaire
The Adult Sickle Cell Quality of Life Measurement System (ASCQ-Me) Pain Impact questionnaire is a patient-reported outcome measure of pain level in the past 7 days. The ASCQ-Me pain scale ranges from 0-100, with a standardized mean of 50 and a standard deviation of 10, where lower scores signify worse disease impact.
Secondary outcomes
Bone turnover markers
Measure longitudinal changes in of biomarkers for osteoclast (bone resorption) and osteoblast (bone formation) activity
Inflammatory biomarkers
Measure longitudinal changes in inflammatory biomarkers from baseline to the end of the study
Vascular adhesion biomarkers
Measure longitudinal changes in biomarkers of vascular adhesion from baseline until the end of the study
Sponsors and contacts
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University of California, Davis
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
Collaborator
Doris Duke Charitable Foundation
Collaborator