ISRCTN ISRCTN44899331
DOI https://doi.org/10.1186/ISRCTN44899331
Protocol serial number 08/CD/008
Sponsor Imperial College London
Funder Department of Surgery & Cancer, Imperial College London (UK)
Submission date
04/08/2011
Registration date
26/08/2011
Last edited
13/03/2018
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims?
Studies have repeatedly shown that modafinil, a drug that promotes alertness, is capable of reversing some of the effects of sleep deprivation. This study aim to assess the impact of modafinil on the thinking skills and hand-eye coordination of a small group of sleep deprived doctors.

Who can take part?
Male training grade doctors working within or affiliated to Imperial College Healthcare NHS Trust. Participants must be healthy and medication free. Specifically, individuals with a history of neurological illness, heart problems, breathing difficulties, substance misuse or psychiatric illness will not be eligible to take part.

What does the study involve?
All participants will undergo a period of skills training following which they will attend the study centre for one night of supervised sleep deprivation. Participants will be randomly allocated to receive either modafinil or placebo at 3am and will undergo a series of laboratory based tests of thinking and hand-eye coordination between 6am and approximately 8am. Doctors will be advised not to return to their clinical work for 48hrs following conclusion of the study.

What are the possible benefits and risks of taking part?
Participants can expect to learn basic technical skills relevant to surgical training. There are no other benefits to the participant form taking part in the study.
Possible side effects of modafinil include: neurological side effects such as headache and dizziness, cardiovascular side effects such as fast heart beat and palpitations, respiratory side effects such as cough and wheeze and gastrointestinal side effects such as dry mouth and bowel disturbance. A more detailed description of the drug and list of side effects is available at patient.co.uk: http://www.patient.co.uk/medicine/Modafinil.htm.

Where is the study run from?
The study will be run from Imperial College London, Department of Surgery and Cancer, St Mary’s Hospital Campus.

When is the study starting and how long is it expected to run for?
August 2009 to March 2010

Who is funding the study?
Imperial College London, Department of Surgery and Cancer.

Who is the main contact?
Dr Colin Sugden (Academic Clinical Lecturer)
c.sugden@imperial.ac.uk

Contact information

Dr Colin Sugden
Scientific

Imperial College London and Imperial College Healthcare NHS Trust
St Mary's Hospital
Praed Street
Paddington
London
W2 1NY
United Kingdom

Study information

Primary study designInterventional
Study designRandomised double blind placebo controlled trial
Secondary study designRandomised controlled trial
Study type Participant information sheet
Scientific titleCan modulation of neurochemical pathways in the brain reverse the effects of sleep deprivation on the psychomotor and cognitive performance of surgical trainees?
Study acronymRESD
Study objectivesModafinil is a well tolerated and effective pharmacological wakefulness promoting agent. We hypothesise that modafinil administration will improve the cognitive and clinical psychomotor performance of a cohort of acutely sleep deprived doctors.
Ethics approval(s)Cambridgeshire 1 Research Ethics Committee, 22/06/2009, ref: 09/H0304/24
Health condition(s) or problem(s) studiedNeuropsychopharmacology, sleep deprivation, medical simulation
Intervention1. Modafinil 200mg
2. Single administration per subject
Intervention typeDrug
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Modafinil
Primary outcome measure(s)

1. Cognitive performance assessed using the Cambridge Neuropsychological Test Automated Battery (CANTAB) battery of neuropsychological tests
2. Clinical psychomotor performance assessed using the MIST-VR simulator

Key secondary outcome measure(s)

1. Subjective rating of fatigue - Stanford Scale and Visual Analogue Scale
2. Heart rate & blood pressure monitoring

Completion date01/03/2010

Eligibility

Participant type(s)Patient
Age groupAdult
SexMale
Target sample size at registration40
Key inclusion criteriaHealthy male resident doctors taking no regular medication and with experience of less than 10 laparoscopic cases as primary operator
Key exclusion criteria1. History of psychiatric illness
2. Visual, auditory or motor impairment
3. Cardiac or neurological illness
4. Score of greater than 10 on the Epworth Sleepiness Scale
5. More than two positive responses to the CAGE questionnaire
6. History of drug or alcohol addiction
7. Consumption of more than eight cups of coffee per day
Date of first enrolment01/08/2009
Date of final enrolment01/03/2010

Locations

Countries of recruitment

  • United Kingdom
  • England

Study participating centre

Imperial College London and Imperial College Healthcare NHS Trust
London
W2 1NY
United Kingdom

Results and Publications

Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/02/2012 Yes No
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes

Editorial Notes

13/03/2018: Publication reference added.
13/02/2018: No publications found in PubMed, verifying study status with principal investigator.