ViDAS-2: Daily Vitamin D for Sickle-cell Respiratory Complications
Study Details
Study Description
Brief Summary
This study aims to answer the question whether daily oral vitamin D supplementation can reduce the risk of respiratory or lung complications in children and adolescents with sickle cell disease. Respiratory problems are the leading causes of sickness and of death in sickle cell disease. The investigators hypothesize that daily oral vitamin D3, compared to monthly oral vitamin D, will rapidly increase circulating vitamin D3, and reduce the rate of respiratory complications by 50% or more within the first year of supplementation in children and adolescents with sickle cell disease.
This study is funded by the FDA Office of Orphan Products Development (OOPD).
Condition or Disease | Intervention/Treatment | Phase |
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Phase 2 |
Detailed Description
This is a 2-year controlled, double-blind, randomized Phase 2 clinical trial comparing the efficacy in reducing the rate of respiratory events in sickle-cell disease of daily oral vitamin D3 (3,333 IU/d) with monthly bolus oral vitamin D3, (100,000 IU/mo) as a control. The scientific premise of the clinical trial is that circulating concentrations of vitamin D3, the parent compound, are the principal determinant of the anti-infective and immunomodulatory effects of supplementation.
Eligible participants will be initially screened to determine their blood vitamin D levels. Those with 25-hydroxyvitamin D levels between 5 and 60 ng/mL will be assigned by chance to one of the two arms for 24 months. Participants will be checked every month and will have periodic blood and urine tests to monitor for any side effects of the study treatments. Children above 5 y/o who can cooperate and understand the procedure will have lung function test at baseline and at 24 months. Showing that a monthly dose of vitamin D reduces lung infections, asthma and the acute chest syndrome could help establish this simple, low-cost treatment as a way to decrease sickness and deaths in children and adolescents with sickle-cell disease.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: Daily oral vitamin D3 Oral vitamin D3, 3,333 IU |
Drug: Daily oral vitamin D3, 3,333 IU
Oral vitamin D3, 3,333 IU, will be administered daily.
Other Names:
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Active Comparator: Monthly bolus oral vitamin D3 Bolus oral vitamin D3, 100,000 IU |
Drug: Bolus oral vitamin D3, 100,000 IU
Bolus oral vitamin D3, 100,000 IU, will be administered monthly.
Other Names:
Drug: Placebo oral tablet
Participants randomized to receive once monthly oral bolus of vitamin D3, will receive placebo on all other days of the month.
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Outcome Measures
Primary Outcome Measures
- Rate of Respiratory Events [Screening up to month 24]
Annual rate of respiratory events will be calculated as the sum of respiratory infection, asthma exacerbation, and acute chest syndrome, as ascertained by use of a validated questionnaire.
Secondary Outcome Measures
- Change in Forced Vital Capacity (FVC) [Baseline and month 24]
Change forced vital capacity (FVC; % predicted) from baseline
- Change in Forced Expiratory Volume in 1 second (FEV1) [Baseline and month 24]
Change in Forced Expiratory Volume in 1 second (FEV1; % predicted) from baseline.
- Change in Forced Expiratory Volume in 1 second (FEV1)/Forced Vital Capacity ratio [Baseline and month 24]
Change in Forced Expiratory Volume in 1 second (FEV1; % predicted)/Forced Vital Capacity (FVC) [FEV1/FVC] % predicted from baseline.
- Change in Forced Expiratory Flow at 25%-75% vital capacity (FEF25-75) [Baseline and month 24]
Change in Forced Expiratory Flow at 25%-75% vital capacity (FEF25-75) % predicted from baseline.
- Change in ratio of Residual Lung Volume (RV) to Total Lung Capacity (TLC) [Baseline and month 24]
Change in per cent of the ratio of Residual Lung Volume (RV) to Total Lung Capacity (RV/TLC) from baseline.
- Change in Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) [Baseline and month 24]
Change in Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO; % predicted) from baseline
- Change in Fractional Concentration of Exhaled Nitric Oxide (FENO) [Baseline and month 24]
Change in Fractional Concentration of Exhaled Nitric Oxide (FENO) in parts per billion (ppb) from baseline
- Change in Maximum Inspiratory Pressure (MIP) [Baseline and month 24]
Change in Maximum Inspiratory Pressure (MIP; cm H2O) from baseline
- Change in Maximum Expiratory Pressure (MEP) [Baseline and month 24]
Change in Maximum Expiratory Pressure (MEP; cm H2O) from baseline
- Change in interleukin 2 (IL 2) concentration [Baseline up to month 24]
Change in serum interleukin 2 concentration (IL 2; pg/mL ) from baseline
- Change in interleukin 4 (IL 4) concentration [Baseline up to month 24]
Change in serum interleukin 4 concentration (IL 4; pg/mL ) from baseline
- Change in interleukin 5 (IL 5) concentration [Baseline up to month 24]
Change in serum interleukin 5 concentration (IL 5; pg/mL ) from baseline
- Change in interleukin 13 (IL 13) concentration [Baseline up to month 24]
Change in serum interleukin 13 concentration (IL 13; pg/mL ) from baseline
- Change in interferon gamma (IFN gamma). concentration [Baseline up to month 24]
Change in serum interferon gamma concentration (IFN gamma; pg/mL ) from baseline
- Change in interleukin 10 (IL 10) concentration [Baseline up to month 24]
Change in serum interleukin 10 concentration (Iinterleukin 10; pg/mL ) from baseline
- Change in Transforming Growth Factor beta (TGF beta) [Baseline up to month 24]
Change in serum Transforming Growth Factor beta (TGF beta; pg/mL ) from baseline
- Change in blood hemoglobin concentration (Hb) [Baseline up to month 24]
Change in blood hemoglobin concentration (Hb; g/dL) from baseline
- Change in blood platelet concentration [Baseline up to month 24]
Change in blood platelet concentration (platelets/mL) from baseline
- Change in serum C-reactive protein (CRP) [Baseline up to month 24]
Change in serum C-reactive protein (CRP; mg/L) from baseline
- Change in interleukin 1alpha (IL 1alpha) concentration [Baseline up to month 24]
Change in serum interleukin 1alpha (IL 1alpha; pg/mL) from baseline
- Change in interleukin 1beta (IL 1beta) concentration [Baseline up to month 24]
Change in serum interleukin 1beta (IL 1beta; pg/mL) from baseline
- Change in Tumor Necrosis Factor alpha (TNF alpha) concentration [Baseline up to month 24]
Change in serum Tumor Necrosis Factor alpha (TNF alpha; pg/mL) from baseline
- Change in C-terminal telopeptides of Type I collagen (CTX) [Baseline up to month 24]
Change in serum C-terminal telopeptides of Type I collagen (CTX; ng/mL) from baseline
- Change in intact N-terminal propeptide of type I procollagen (P1NP) [Baseline up to month 24]
Chang in serum intact N-terminal propeptide of type I procollagen (P1NP; µg/L) from baseline.=
Eligibility Criteria
Criteria
Inclusion Criteria:
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Diagnosis of sickle cell disease (Hb SS, Hb SC, Hb S-Beta-thalassemia)
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Age 3-20 years old
Exclusion Criteria:
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Patient unwilling or unable to provide written informed consent (and assent, if applicable)
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Patient unable or unwilling to comply with requirements of the clinical trial
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Participation in another clinical trial
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Current diagnosis of rickets
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History of hypercalcemia or diagnosis of any medical condition associated with hypercalcemia, including primary hyperparathyroidism, malignancy, sarcoidosis, tuberculosis, granulomatous disease, familial hypocalciuric hypercalcemia
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Current use of corticosteroids, excluding inhaled steroids
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Current use of anticonvulsants (phenytoin, phenobarbital, carbamazepine)
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Therapy with thiazide diuretics or lithium carbonate
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Known liver or renal disease
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Patients taking medications for pulmonary complications of sickle cell disease not on a stable dose of medications, as defined by a change in medications or doses within the three months prior to study entry
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Patients on chronic red blood cell transfusion therapy
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Columbia University Medical Center | New York | New York | United States | 10032 |
Sponsors and Collaborators
- Gary M Brittenham, MD
Investigators
- Principal Investigator: Gary M Brittenham, MD, Columbia University
- Principal Investigator: Margaret T Lee, MD, Columbia University
Study Documents (Full-Text)
None provided.More Information
Additional Information:
- Response to Long-term Vitamin D Therapy for Bone Disease in Children With Sickle Cell Disease.
- Randomized phase 2 trial of monthly vitamin D to prevent respiratory complications in children with sickle cell disease
Publications
- De A, Anekwe CV, Kattan M, Yao Y, Jin Z, Brittenham GM, Lee MT. Validation of a Questionnaire to Identify Respiratory Tract Infections in Children With Sickle Cell Disease. J Pediatr Hematol Oncol. 2021 Jul 1;43(5):e661-e665. doi: 10.1097/MPH.0000000000002164.
- Lee MT, Kattan M, Fennoy I, Arpadi SM, Miller RL, Cremers S, McMahon DJ, Nieves JW, Brittenham GM. Randomized phase 2 trial of monthly vitamin D to prevent respiratory complications in children with sickle cell disease. Blood Adv. 2018 May 8;2(9):969-978. doi: 10.1182/bloodadvances.2017013979.
- Williams KM, Lee MT, Licursi M, Brittenham GM, Fennoy I. Response to Long-term Vitamin D Therapy for Bone Disease in Children With Sickle Cell Disease. J Pediatr Hematol Oncol. 2018 Aug;40(6):458-461. doi: 10.1097/MPH.0000000000001155.
- AAAS0396
- R01FD006372