The Christopher Study: effective management of pulmonary embolism by clinical decision rule (CDR), D-dimer test and helical computed tomography (CT)
ISRCTN | ISRCTN56430379 |
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DOI | https://doi.org/10.1186/ISRCTN56430379 |
Secondary identifying numbers | NTR581 |
- Submission date
- 04/04/2006
- Registration date
- 04/04/2006
- Last edited
- 05/11/2008
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Plain English summary of protocol
Not provided at time of registration
Contact information
Dr M V Huisman
Scientific
Scientific
Leiden University Medical Centre (LUMC)
Department of General Internal Medicine, C2-R
P.O. Box 9600
Leiden
2300 RC
Netherlands
Phone | +31 (0)71 625 9111 |
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m.v.huisman@lumc.nl |
Study information
Study design | Prospective cohort study |
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Primary study design | Observational |
Secondary study design | Cohort study |
Study setting(s) | Hospital |
Study type | Screening |
Scientific title | |
Study acronym | Christopher Study |
Study objectives | It is safe to withhold anticoagulant treatment in patients with clinically suspected pulmonary embolism (PE) who have either a combination of clinical decision rule (CDR) indicating PE unlikely and normal D-dimer test or CDR indicating PE likely or abnormal D-dimer test and normal helical computed tomography (CT). |
Ethics approval(s) | The institutional review boards of all participating hospitals approved the study protocol. |
Health condition(s) or problem(s) studied | Pulmonary embolism (PE) |
Intervention | Diagnosis of PE by CDR, D-dimer and helical CT. |
Intervention type | Other |
Primary outcome measure | Thromboembolic disease during three months follow-up in all patients. |
Secondary outcome measures | No secondary outcome measures |
Overall study start date | 01/11/2002 |
Completion date | 01/12/2004 |
Eligibility
Participant type(s) | Patient |
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Age group | Adult |
Lower age limit | 18 Years |
Sex | Both |
Target number of participants | 3306 |
Key inclusion criteria | Adult patients more than 18 years old with clinically suspected pulmonary embolism. |
Key exclusion criteria | 1. Pregnancy 2. Allergy to contrast media 3. No geographic possibility of return for follow-up 4. Treatment with therapeutic heparin for more than 24 hours 5. Indication for thrombolytic therapy |
Date of first enrolment | 01/11/2002 |
Date of final enrolment | 01/12/2004 |
Locations
Countries of recruitment
- Netherlands
Study participating centre
Leiden University Medical Centre (LUMC)
Leiden
2300 RC
Netherlands
2300 RC
Netherlands
Sponsor information
Academic Medical Centre (AMC) (The Netherlands)
Hospital/treatment centre
Hospital/treatment centre
P.O. Box 22660
Amsterdam
1100 DD
Netherlands
Website | http://www.amc.uva.nl |
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https://ror.org/03t4gr691 |
Funders
Funder type
Hospital/treatment centre
Amphia Hospital Breda (The Netherlands)
No information available
Hospital Hilversum (The Netherlands)
No information available
University Hospital Maastricht (AZM) (The Netherlands)
No information available
Academic Medical Centre (AMC) (The Netherlands)
No information available
Erasmus Medical Centre (The Netherlands)
No information available
University Medical Centre St Radboud (The Netherlands)
No information available
Meander Medical Centre (The Netherlands)
No information available
Spaarne Hospital (The Netherlands)
No information available
Diakonessenhuis Meppel (The Netherlands)
No information available
Medical Centre Rijnmond, location Zuider Hospital Rijnstate Hospital (The Netherlands)
No information available
Results and Publications
Intention to publish date | |
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Individual participant data (IPD) Intention to share | No |
IPD sharing plan summary | Not provided at time of registration |
Publication and dissemination plan | Not provided at time of registration |
IPD sharing plan |
Study outputs
Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
---|---|---|---|---|---|
Results article | Results | 11/01/2006 | Yes | No |