The Delphi Trial I(RCT)2 international randomised clinical trial of rheumatoid craniocervical treatment: an intervention-prognostic trial comparing 'early' surgery with natural history

ISRCTN ISRCTN65076841
DOI https://doi.org/10.1186/ISRCTN65076841
Secondary identifying numbers DAA 04-1-05; NTR474
Submission date
25/01/2005
Registration date
19/04/2005
Last edited
03/10/2018
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Musculoskeletal Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Wilco Peul
Scientific

Albinusdreef 2
Leiden
2300 RC
Netherlands

Phone +31 (0)715263957
Email w.peul@mchaaglanden.nl

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Hospital
Study typeTreatment
Scientific titleThe Delphi Trial I(RCT)2 international randomised clinical trial of rheumatoid craniocervical treatment: an intervention-prognostic trial comparing 'early' surgery with natural history
Study acronymThe Delphi I(RCT)2
Study objectivesThere is no difference between early surgery and prolonged conservative treatment.

The prevalence of rheumatoid arthritis is 0.8 - 1%. The upper cervical spine shows signs of damage in 17 - 86% of patients with rheumatoid arthritis (RA). Once neurological deficits develop prognosis is poor. Surgery is advocated by most international centres in an early stage to prevent neurological deterioration and radiological progression of abnormalities.
Ethics approval(s)Not provided at time of registration
Health condition(s) or problem(s) studiedRheumatoid arthritis
InterventionEarly surgery versus prolonged conservative treatment:
1. Surgical treatment (A) Operation technique: C1C2 screw fixation according to Magerl or Harms with or without wiring techniques
2. Prolonged conservative treatment (B): The treatment of rheumatoid arthritis patients is aimed primarily at rapid reduction of disease activity by disease-modifying anti-rheumatic drugs, thus preventing (progression of) damage, including subluxation, and maintenance/restoration of physical (including neurological) function
Intervention typeOther
Primary outcome measureThe primary outcome is the occurrence of a major event:
1. Neurological disability
2. Radiological progression
3. Surgery (B) or resurgery (A)
4. Death (all causes)
Secondary outcome measures1. Ranawat
2. ASIA
3. DAS-28 instrument
4. Visual Analogue Scale (VAS)
5. EuroQol instrument
6. ST-36 instrument
7. Functional X-ray
8. Magnetic resonance imaging (MRI)
Overall study start date01/03/2005
Completion date30/06/2007

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants250
Key inclusion criteria1. Rheumatoid arthritis patients
2. Aged 18 to 70
3. Ranawat I and II: no neurological impairment
4. C1-C2 subluxation: anterior atlanto-dental interval (AADI) 5 to 12 mm, posterior atlanto-dental interval (PADI) more than 10 mm
5. C1-C2 subluxation may be reducible as well as irreducible
6. Informed consent
Key exclusion criteria1. Ranawat IIIA and IIIB: neurological impairment
2. Severe comorbidity
3. Previous craniocervical operations
4. Klippel Feil syndrome
5. C1-C2 subluxation: AADI less than 5 mm or more than 12 mm or PADI less than 10 mm
6. Magnetic resonance imaging (MRI) incompatibility
Date of first enrolment01/03/2005
Date of final enrolment30/06/2007

Locations

Countries of recruitment

  • Belgium
  • Canada
  • Denmark
  • France
  • Germany
  • Italy
  • Latvia
  • Netherlands
  • Portugal
  • Spain
  • Sweden
  • Switzerland
  • United Kingdom
  • United States of America

Study participating centre

Albinusdreef 2
Leiden
2300 RC
Netherlands

Sponsor information

Reumafonds (Dutch Rheumatoid Arthritis Foundation) (The Netherlands)
Research organisation

Dr Jan van Breemenstraat 4
Amsterdam
1040 KB
Netherlands

ROR logo "ROR" https://ror.org/05dr3r825

Funders

Funder type

Research organisation

Reumafonds (Dutch Rheumatoid Arthritis Foundation) (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?
Protocol article Protocol 16/02/2006 Yes No

Editorial Notes

03/10/2018: No publications found, verifying study status with principal investigator.