The Effect of Vitamin D3 to Maintain Surgical Remission in Postoperative Crohn's Disease (DETECT)

December 6, 2017 updated by: Geert D'Haens, Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

The Effect of Vitamin D3 to Maintain Surgical Remission in Postoperative Crohn's Disease: a Placebo-controlled Randomized Trial

The majority of patients with Crohn's disease (CD) need to undergo surgical bowel resection. Postoperative recurrence of the disease is virtually inevitable and continues to be one of the most challenging therapeutic problems in inflammatory bowel diseases. Medical treatments to prevent recurrence have had limited effect. Anti-tumor necrosis factor (TNF) agents appear promising but are hampered by immunogenicity, side effects and high cost.

Vitamin D has recently received a lot of scientific attention and was found to have strong anti-inflammatory and antifibrotic effects in gut and liver inflammation. Many CD patients appear to have deficiency in Vitamin D. A controlled trial to prevent relapse of CD in medical (not surgical) remission suggested a preventive effect for Vitamin D but marginally missed its endpoint because of lack of power.

The ultimate proof of the anti-inflammatory effect of Vitamin D in CD can best be studied in the prevention of postoperative recurrence.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Our objective is to study the prophylactic effect of Vitamin D3 to prevent post-operative recurrence of Crohn's disease (CD), with an endoscopic endpoint 6 months after surgery as the primary outcome. Endoscopy has been an established surrogate marker for future clinical relapse. Secondary objectives include clinical recurrence rates at 6 months, the difference in recurrence rates among patients with and without low Vitamin D levels at baseline, the effects of Vitamin D3 on quality of life parameters, resource use and related costs.

ANTICIPATED OUTCOME This study will provide proof of the anti-inflammatory effect of vitamin D, which to our opinion can best be studied in a post-operative setting. Since post-operative recurrence is frequent, a safe and cost-effective therapy is highly needed for this indication. The hypothesis is that patients who receive vitamin D treatment will have less frequent and less severe endoscopic recurrence.

Study Type

Interventional

Enrollment (Actual)

142

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

      • Amsterdam, Netherlands, 1105 BK
        • Academic Medical Center

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age ≥ 18 years, either male or female
  • Established CD
  • First or second ileocolonic resection with ileocolonic anastomosis and removal of all tissue macroscopically affected by CD according to the surgeon
  • Able to give written informed consent
  • Normal levels of serum calcium at inclusion
  • Being able to resume oral intake within 2 weeks after surgery

Exclusion Criteria:

  • Patients in whom not all visible CD has been resected
  • Active fistulizing perianal disease (requiring anti TNF treatment)
  • Extensive small bowel resection
  • Third, fourth or later ileocolonic resection
  • Patients undergoing ileocoecal resection in the Lir!c Trial (NTR 1150, http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=1150)
  • A history of primary hyperparathyroidism
  • A history of osteoporosis for which calcium and Vitamin D treatment are mandatory
  • A history of another granulomatous diseases (sarcoidosis, tuberculosis)
  • Pregnant or breastfeeding (at index date) female patients
  • Patients undergoing other resections than ileocolonic resections
  • Patients who prefer to use open-label vitamin D preparations
  • Patients who will continue to use tanning beds

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: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Vitamin D
Weekly Vitamin D3 drops 25.000 IU for 6 months following ileocoecal resection
25.000 IU oral drops
Placebo Comparator: Placebo
Weekly placebo drops for 6 months following ileocoecal resection
placebo oral drops

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Proportion of patients with clinically significant endoscopic recurrence at 6 months of vitamin D3 treatment postoperatively, defined as endoscopic Rutgeerts' score ≥i2.
Time Frame: 0-6 months
0-6 months

Secondary Outcome Measures

Outcome Measure
Time Frame
1. Clinical CD recurrence measured with CDAI among the 2 groups at week 26 (CDAI ≥220)
Time Frame: 0-6 months
0-6 months
2. NOD2 gene mutations: the difference in response to vitamin D treatment in patients NOD2+ versus patients NOD2-.
Time Frame: 0-6 months
0-6 months
3. Difference in significant recurrence among all patients with low vitamin D at baseline
Time Frame: 0-6 months
0-6 months
4. Quality of life, measured by one validated questionnaire for IBD patients (IBD-Q) and two general questionnaires (SF-36 and EuroQol)
Time Frame: 0-6 months
0-6 months
5. Any adverse events
Time Frame: 0-6 months
0-6 months

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Geert D'Haens, MD, PhD, Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

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 (Actual)

February 1, 2013

Primary Completion (Actual)

December 1, 2017

Study Completion (Actual)

December 1, 2017

Study Registration Dates

First Submitted

December 10, 2013

First Submitted That Met QC Criteria

December 10, 2013

First Posted (Estimate)

December 13, 2013

Study Record Updates

Last Update Posted (Actual)

December 7, 2017

Last Update Submitted That Met QC Criteria

December 6, 2017

Last Verified

December 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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