Trial of High Dose Vitamin D in Patient's With Crohn's Disease (RODIN-CD)

August 31, 2017 updated by: Peter Higgins, University of Michigan

A Randomized Controlled Trial of High-Dose Vitamin D in Crohn's Disease

Crohn's disease is more common in areas of the world with less sunlight exposure. Sunlight is a major source of vitamin D. There is some research to suggest that patient's with higher vitamin D levels are less likely to undergo surgeries and have better control of their disease. We intend to study the effects of high dose vitamin D supplementation in patients with vitamin D deficiency and Crohn's disease. We hypothesize that patients given high doses will have less hospitalizations, surgeries, steroid use.

Study Overview

Detailed Description

Subjects are randomized to low or high dose vitamin D, and outcomes including steroid prescriptions, CD-related hospitalizations, CD-related surgeries, and the modified Harvey-Bradshaw Index are measured.

Study Type

Interventional

Enrollment (Actual)

11

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Indiana
      • Indianapolis, Indiana, United States, 46001
        • Indiana University
    • Iowa
      • Iowa City, Iowa, United States, 55240
        • University of Iowa
    • Michigan
      • Ann Arbor, Michigan, United States, 48109
        • University of Michigan
    • North Carolina
      • Chapel Hill, North Carolina, United States, 27599
        • University of North Carolina

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Diagnosis of CD
  • Age >= 18 and <75
  • Vitamin D deficiency or insufficiency (serum 25-hydroxyvitamin D < 30ng/ml)

Exclusion Criteria:

  • Corticosteroid use in the last 4 weeks
  • CD-related surgery in the last 6 months
  • CD-related hospitalization in the last 4 weeks
  • Pregnancy, intended pregnancy during the study period or nursing
  • Serum calcium >10.2 mg/dL
  • History of primary sclerosing cholangitis
  • History of undergoing an ileal pouch-anal anastomosis
  • Current active perianal disease
  • History of nephrolithiasis in the past 2 years
  • Anticipated change in therapy in the next 30 days (steroids, biologic initiation)
  • modified Harvey-Bradshaw Index of 10 or more
  • History of decreased renal function (glomerular filtration rate <30ml/min based on MDRD) or polycystic kidney disease
  • History of sarcoidosis
  • History of hyperparathyroidism
  • Any other chronic condition that may preclude high doses of Vitamin D such as lymphoma
  • Concurrent use of hydrochlorothiazide, phenytoin, phenobarbital, carbamazepine or primidone
  • Osteoporosis

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Low Dose Vitamin D
Patients will be given 400 IU cholecalciferol once daily for 30 days. <-THIS IS THE Active Comparator Intervention. To maintain the blind, a random few will be given another round at the 30 day mark. For patients who enroll in the summer, a random few will again receive 400 IU cholecalciferol in March.
Cholecalciferol 400 IU po daily
Other Names:
  • Low dose vitamin D
Experimental: High Dose Vitamin D
Patients will be given cholecalciferol 10,000 IU daily for 30 days. <-THIS IS THE INTERVENTION. At that point, if their vitamin D levels remain below 50 ng/ml, the 30 day course will be repeated. For patients who enroll in the summer, levels will be rechecked in March and if <50 ng/ml, a 30 day course will be administered.
Cholecalciferol 10,000 IU po daily
Other Names:
  • High Dose Vitamin D

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Composite Endpoint: Number of Participants With (Any of) a CD-related Hospitalization, CD-related Surgery, CD-related ER Visits and Steroid Prescriptions
Time Frame: Day 180

Composite endpoint of (any of) Crohn's disease(CD)-related hospitalizations, CD-related surgeries, CD-related ER visits, or steroid prescriptions.

Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here.

Day 180
Hypercalcemia
Time Frame: Day 180
Hypercalcemia is presented as number of participants with Calcium >10.8 mg/dl Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here.
Day 180
Incidence of Nephrolithiasis
Time Frame: Day 180
Incidence of nephrolithiasis associated with hypercalcemia (>10.8mg/dl) documented by imaging Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here.
Day 180

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Crohn's Related Hospitalizations
Time Frame: Day 180
Dichotomous (0/1) endpoint for each subject, depending on whether a CD-related hospitalization occurred. Relatedness to Crohn's disease as judged by the DSMB. Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here.
Day 180
Steroid Prescription Given (Dichotomous 0/1)
Time Frame: Day 180
Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here. No steroid prescriptions occurred
Day 180
Crohn's Related Surgeries (Dichotomous 0/1 Per Subject)
Time Frame: Day 180
Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here. No CD-related surgeries occurred in the 1 subject
Day 180
Change in Modified Harvey-Bradshaw Index (HBI Without Examination)
Time Frame: Day 180

modified Harvey-Bradshaw is a disease assessment scale. 0 is the lowest score and would be considered remission. Scale ranges to over 16 (upper limit is defined by the number of bowel movements in the prior day) with numbers over 16 being severe disease. A positive change (such as that indicated below) therefore references slightly worsening disease while a negative change references improving disease.

Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here. 1 subject had an increase of 1 unit on the modified HBI.

Day 180
Change in C-reactive Protein
Time Frame: Day 180
Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here. The delta between first (baseline) and last CRP (Day 180) is reported here.
Day 180
Changes in Fecal Calprotectin
Time Frame: 1 year
Originally planned to collect at Day 180 and Day 360. Results were not collected on any subjects, as the one participant did not provide a stool sample.
1 year
Percent With Escalation of Therapy
Time Frame: Day 180
Patients who had to have a change in therapy Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here.
Day 180
Quality of Life Measure Changes
Time Frame: Day 180

change in quality of life measures based on Inflammatory bowel disease questionnaire (IBD-Q).

Scale from 0 to 224 with 0 being the poorest quality of life and 224 being the highest quality of life. A positive change indicates improvement while a negative change indicates worsening.

Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here.

Day 180
Change in Fatigue Measurements
Time Frame: Day 180

Change in FACIT-F scale over the year. Scale is 0-160 with 0 being no fatigue and 160 being extreme fatigue. A positive change indicates worsening in symptoms and a negative change indicates an improvement.

Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here.

Day 180
Participants With at Least One Crohn's Related Emergency Department (ED) Visit
Time Frame: Day 180
Originally planned to collect at Day 180 and Day 360. Only 1 subject remained in the study to Day 180 so that data is presented here. No CD-related ED visits occurred in the 1 subject
Day 180

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Peter D. Higgins, MD, PhD, MSc, University of Michigan
  • Study Director: Shail M Govani, M.D., M.Sc., University of Michigan
  • Study Director: Hans Herfarth, MD, PhD, University of North Carolina

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2015

Primary Completion (Actual)

April 1, 2016

Study Completion (Actual)

April 1, 2016

Study Registration Dates

First Submitted

August 1, 2014

First Submitted That Met QC Criteria

August 1, 2014

First Posted (Estimate)

August 5, 2014

Study Record Updates

Last Update Posted (Actual)

October 6, 2017

Last Update Submitted That Met QC Criteria

August 31, 2017

Last Verified

August 1, 2017

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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