The effect of ondansetron, a 5-Ht3 receptor antagonist, on fatigue severity and functional impairment in Chronic Fatigue Syndrome patients

ISRCTN ISRCTN02536681
DOI https://doi.org/10.1186/ISRCTN02536681
Protocol serial number NTR209
Sponsor University Medical Centre Nijmegen (Netherlands)
Funder GlaxoSmithKline (Netherlands)
Submission date
20/12/2005
Registration date
20/12/2005
Last edited
15/06/2010
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nervous System Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr G K H The
Scientific

Department Internal Medicine - 541
Expert Center Chronic Fatigue
University Medical Centre Nijmegen
P.O. Box 9101
Nijmegen
6500 HB
Netherlands

Phone +31 (0)24 361 8819
Email g.the@aig.umcn.nl

Study information

Primary study designInterventional
Study designRandomised placebo controlled, parallel group, double blinded trial
Secondary study designRandomised controlled trial
Scientific title
Study objectivesAccumulating data in the literature support an important role for serotonin, in the neurobiology of Chronic Fatigue Syndrome (CFS). Neuroendocrine and neuropharmacological studies point to an up-regulated or hyper-responsive serotonin system.

In a randomised controlled trial by our own research group the Selective Serotonin Reuptake Inhibitor (SSRI) fluoxetine proved to be ineffective in Centre for Diseases Control (CDC)-diagnosed CFS patients.

Positive reports of the use of serotonine inhibitors in the treatment of fatigue, due to hepatitis and to fibromyalgia, support an effect. Based on these findings we hypothesise that a serotonin antagonist could be effective in the treatment of CFS.
Ethics approval(s)Ethics approval received from the local medical ethics committee
Health condition(s) or problem(s) studiedChronic fatigue syndrome
Intervention10 weeks ondansetron versus placebo.
Intervention typeDrug
PhaseNot Specified
Drug / device / biological / vaccine name(s)Ondansetron
Primary outcome measure(s)

1. Fatigue severity: measured with Checklist Individual Strength
2. Functional impairment: measured with Sickness Impact Profile
3. CDC-symptoms

Key secondary outcome measure(s)

Physical activity level: measured with actometer

Completion date01/03/2006

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexAll
Target sample size at registration60
Key inclusion criteria1. CDC-diagnosed CFS-patients
2. Male and female patients 18 - 65 years of age
3. High-fatigue severity level
4. Substantial functional impairment
5. Written informed consent
Key exclusion criteria1. Pregnancy
2. Lactating women
3. Participation in CFS-treatment programs
4. Participation in other CFS-research
5. Psychopharmaca
Date of first enrolment19/06/2002
Date of final enrolment01/03/2006

Locations

Countries of recruitment

  • Netherlands

Study participating centre

Department Internal Medicine - 541
Nijmegen
6500 HB
Netherlands

Results and Publications

Individual participant data (IPD) Intention to shareNo
IPD sharing plan summary
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/05/2010 Yes No