Treatment of bone loss and changes in bone architecture in osteopenic patients with Crohn's disease: a comparison between calcium supplementation and vitamin D alone or combined with oral risedronate 35 mg once weekly

ISRCTN ISRCTN59682218
DOI https://doi.org/10.1186/ISRCTN59682218
Secondary identifying numbers N/A
Submission date
20/12/2005
Registration date
20/12/2005
Last edited
20/08/2021
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Digestive System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Mr Maartje de Ley
Scientific

IBD trial bureau
C2-317
Meibergdreef 9
Amsterdam
1105 AZ
Netherlands

Phone +31 (0)20 566 6545
Email m.deley@compaqnet.nl

Study information

Study designRandomised, placebo controlled, parallel group, double blinded multicentre trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Not specified
Study typeTreatment
Scientific titleTreatment of bone loss and changes in bone architecture in osteopenic patients with Crohn's disease: a comparison between calcium supplementation and vitamin D alone or combined with oral risedronate 35 mg once weekly
Study acronymCrohn and Bone study
Study objectivesBifosfornates in combination with vitamin D and Calcium is more effective that Vitamin D and Calcium alone for Crohn’s disease related osteopenia.
Ethics approval(s)Ethics approval received from the local medical ethics committee
Health condition(s) or problem(s) studiedCrohn's, Osteopenia
InterventionFor both study groups: 1000 mg Calcium and 400 IU vitamin D.
Group I: weekly 35 mg risedronate (Actonel®)
Group II: weekly one placebo tablet

Patients will receive treatment for 24 months.
Intervention typeSupplement
Primary outcome measureThe primary objective of this study is to determine the change in BMD, expressed as T-score, at lumbar spine and total hip as assessed by DEXA after 24 months of treatment with Calcium 1 g and vitamin D3 400 IU once daily (o.d.), with concomitant weekly 35 mg risedronate (Actonel®) compared to placebo in patients suffering from Crohn’s disease.
Secondary outcome measures1. To study the histomorphometric, micro architectural and mineralisation changes in bone after treatment of bone loss in patients with Crohn’s disease with calcium and vitamin D alone or in combination with risedronate
2. To determine changes in markers of bone metabolism (bone specific alkaline phosphatase, osteocalcine, and type-one collagen C-telopeptide)
3. To establish the incidence of non-vertebral and vertebral fractures, as measured by semi-quantitative assessment of digital, standardised radiographs of the spine
Overall study start date30/08/2004
Completion date31/08/2007

Eligibility

Participant type(s)Patient
Age groupNot Specified
SexNot Specified
Target number of participants130
Key inclusion criteria1. Men and women between 18 and 70 years of age
2. Patients suffering from Crohn's disease of at least three months duration, confirmed by radiography, endoscopy and histology
3. Quiescent stage of disease as defined by the Crohn's Disease Activity Index (CDAI less than 150)
4. A Bone Mineral Density (BMD) between -1.0 SD and -2.5 SD as assessed by Dual Energy X-ray Absorptiometry (DEXA) (T-score) of lumbar spine or total hip
5. A serum 25(OH)-vitamin D level more than 25 nmol/L
6. Patients must be able to adhere to the study visit schedule and protocol requirements
7. Patients must be able to give informed consent and the consent must be obtained prior to any study procedures
Key exclusion criteria1. Patients with a DEXA T-score less than -25 in lumbar spine or total hip
2. Patients who have received bisphosphonates a year prior to inclusion, or who are known with an allergy to bisphosphonates
3. Patients who have received calcitonin or suppressive doses of thyroxine within one year
4. Patients with serum 25(OH)-vitamin D levels less than 25 nmol/L (supplementation for three months prior to (renewed) screening is allowed)
5. Corticosteroid treatment three months prior to screening or during the screening phase with daily dosages above 75 mg prednisole-equivalent at any time
6. A history of hyperthyroidism, Paget's disease or other metabolic bone diseases, Cushing's disease or hyperprolactinemia
7. Female patients who are pregnant or breast-feeding
8. Patients receiving hormonal replacement therapy
9. A psychiatric, addictive, or any disorder that compromises ability to give truly informed consent for participation in this study
Date of first enrolment30/08/2004
Date of final enrolment31/08/2007

Locations

Countries of recruitment

  • Netherlands

Study participating centre

IBD trial bureau
Amsterdam
1105 AZ
Netherlands

Sponsor information

Aventis (The Netherlands)
Industry

P.O. Box 2043
Gouda
2800 BD
Netherlands

Phone +31 (0)182 557 696
Email info.nl@aventis.com
ROR logo "ROR" https://ror.org/00pgqb537

Funders

Funder type

Industry

Aventis (The Netherlands)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 21/10/2013 20/08/2021 Yes No

Editorial Notes

20/08/2021: Publication reference added.