Vitamin D for Enhancing the Immune System in Cystic Fibrosis (DISC Study)
DISC
2 other identifiers
interventional
91
1 country
5
Brief Summary
The purpose of this study is determine if high-dose vitamin D supplementation improves clinical outcomes related to lung function and immunity in patients with Cystic Fibrosis who are admitted to the hospital with an acute lung infection.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Oct 2011
Longer than P75 for phase_3
5 active sites
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
First Submitted
Initial submission to the registry
August 29, 2011
CompletedFirst Posted
Study publicly available on registry
August 31, 2011
CompletedStudy Start
First participant enrolled
October 1, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2017
CompletedJuly 13, 2017
July 1, 2017
5.5 years
August 29, 2011
July 11, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Study enrollment to next pulmonary exacerbation requiring any antibiotics, hospitalization or death.
12 months
Secondary Outcomes (7)
inflammation
12 months
mortality as a separate outcome
12 months
re-hospitalization as a separate outcome
12 months
anti-microbial proteins
12 months
Lung function
12 months
- +2 more secondary outcomes
Study Arms (2)
Cholecalciferol (Vitamin D3)
EXPERIMENTALPatients will be given 250,000 IU cholecalciferol in one bolus oral dose while they are in the hospital. Three months after the initial bolus dose, patients will take 50,000 IU oral cholecalciferol every other week for 9 months.
Placebo
NO INTERVENTIONPatients will be given placebo pills in one bolus oral dose while they are in the hospital. Three months after the initial bolus dose, patients will take a placebo pill every other week for 9 months.
Interventions
Bolus dose of 250,000 IU during hospitalization + maintenance dose of 50,000 IU vitamin D every other week to be initiated 3 months after bolus dose
Eligibility Criteria
You may qualify if:
- Adult and adolescent CF patients
- age \>16 years
- admitted to the inpatient hospital setting for a pulmonary exacerbation of cystic fibrosis
- enrolled within 72 hours of admission
- able to tolerate oral medications
- expected to survive hospitalization
You may not qualify if:
- Inability to obtain or declined informed consent from the subject and/or legally authorized representative
- History of serum 25(OH)D \>55 ng/mL in the past 12 months
- History of serum 25(OH)D \<10 ng/mL in the past 12 months
- Current intake of more than 2,000 IU of vitamin D
- intake of 2,000 IU of vitamin D or its equivalent weekly dose (14,000 IU) for more than 1 week at any time within the past 60 days or intake of greater than vitamin D 10,000 IU once at anytime in the past 60 days
- Pregnancy or plans to become pregnant during the course of the study (12 months)
- History of disorders associated with hypercalcemia including parathyroid disease
- Current hypercalcemia (albumin-corrected serum calcium \>10.8 mg/dL or ionized calcium \>5.2 mg/dL)
- History of nephrolithiasis
- Chronic kidney disease worse than stage III (\<60 ml/min)
- Oral or intravenous glucocorticoid use currently or in the past month
- History of lung transplantation or awaiting lung transplant
- patient in hospice care
- FEV1% predicted \<20%
- Current significant hepatic dysfunction total bilirubin \> 2.5 mg/dL with direct bilirubin \> 1.0 mg/dL
- +6 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Emory Universitylead
- Cystic Fibrosis Foundationcollaborator
Study Sites (5)
University of Alabama at Birmingham
Birmingham, Alabama, 35233, United States
Emory Hospital
Atlanta, Georgia, 30322, United States
University of Iowa
Iowa City, Iowa, 52242, United States
University of Cincinnati
Cincinnati, Ohio, 45267, United States
Case Western Reserve University
Cleveland, Ohio, 44106, United States
Related Publications (4)
Wolfenden LL, Judd SE, Shah R, Sanyal R, Ziegler TR, Tangpricha V. Vitamin D and bone health in adults with cystic fibrosis. Clin Endocrinol (Oxf). 2008 Sep;69(3):374-81. doi: 10.1111/j.1365-2265.2008.03216.x. Epub 2008 Feb 11.
PMID: 18284636BACKGROUNDKhazai NB, Judd SE, Jeng L, Wolfenden LL, Stecenko A, Ziegler TR, Tangpricha V. Treatment and prevention of vitamin D insufficiency in cystic fibrosis patients: comparative efficacy of ergocalciferol, cholecalciferol, and UV light. J Clin Endocrinol Metab. 2009 Jun;94(6):2037-43. doi: 10.1210/jc.2008-2012. Epub 2009 Mar 31.
PMID: 19336509BACKGROUNDPepper KJ, Judd SE, Nanes MS, Tangpricha V. Evaluation of vitamin D repletion regimens to correct vitamin D status in adults. Endocr Pract. 2009 Mar;15(2):95-103. doi: 10.4158/EP.15.2.95.
PMID: 19342361BACKGROUNDTangpricha V, Lukemire J, Chen Y, Binongo JNG, Judd SE, Michalski ES, Lee MJ, Walker S, Ziegler TR, Tirouvanziam R, Zughaier SM, Chesdachai S, Hermes WA, Chmiel JF, Grossmann RE, Gaggar A, Joseph PM, Alvarez JA. Vitamin D for the Immune System in Cystic Fibrosis (DISC): a double-blind, multicenter, randomized, placebo-controlled clinical trial. Am J Clin Nutr. 2019 Mar 1;109(3):544-553. doi: 10.1093/ajcn/nqy291.
PMID: 30793177DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Vin Tangpricha, MD, PhD
Emory University
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
August 29, 2011
First Posted
August 31, 2011
Study Start
October 1, 2011
Primary Completion
April 1, 2017
Study Completion
July 1, 2017
Last Updated
July 13, 2017
Record last verified: 2017-07