ISRCTN ISRCTN45733939
DOI https://doi.org/10.1186/ISRCTN45733939
ClinicalTrials.gov (NCT) Nil known
Clinical Trials Information System (CTIS) Nil known
Integrated Research Application System (IRAS) 1005607
Protocol serial number 1.0, IRAS 1005607
Sponsor Durham University
Funder Northern Accelerator
Submission date
15/03/2022
Registration date
30/03/2022
Last edited
12/05/2025
Recruitment status
No longer recruiting
Overall study status
Deferred
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Post-concussion syndrome (PCS) is a complex disorder for which there is currently no cure. It is a collection of symptoms that some people develop after they have had a concussion. PCS can profoundly affect quality of life through symptoms such as pressure headache, migraine, dizziness, fatigue, sleep disturbances, blurred vision, and cognitive complaints such as forgetfulness and concentration difficulties. The complexity of PCS presents an ongoing challenge in clinical practice. Current approaches for treating PCS focus on the relief of individual symptoms. This study will investigate the effectiveness of a repurposed drug combination for PCS. This is a pilot trial, which means that it has been designed to provide initial evidence that will be used to inform a future larger trial.

Who can participate?
Patients aged 18 to 64 years with PCS

What does the study involve?
The study involves taking the combined drug intervention daily until PCS resolves or until the end of the 3-month maximum trial duration. There will be two clinic visits and a telephone appointment mid-trial and 2 months after the trial.

What are the possible benefits and risks of participating?
The overall benefit of taking part in this study is that the treatment may improve or resolve PCS. Participants will receive a copy of the overall trial results at the close of the study. As with all drug treatments, there is a risk of side effects. The side effects associated with the drugs used in this study have been reported to be minimal and the drugs are routinely prescribed by clinicians in the UK. Any suspected side effects are to be reported to the clinical lead straight away.

Where is the study run from?
The study is led by Durham University and the lead clinical site is Walkergate Park Centre for Neurorehabilitation and Neuropsychiatry in Newcastle upon Tyne (UK)

When is the study starting and how long is it expected to run for?
July 2021 to December 2025

Who is funding the study?
Northern Accelerator (UK)

Who is the main contact?
paul.chazot@durham.ac.uk

Contact information

Dr Paul Chazot
Principal investigator

Department of Biosciences
Stockton Road
Durham
DH1 3LE
United Kingdom

ORCiD logoORCID ID 0000-0002-5453-0379
Phone +44 (0)191 334 2000
Email paul.chazot@durham.ac.uk

Study information

Primary study designInterventional
Study designSingle-arm pilot intervention trial
Secondary study designNon randomised study
Study type Participant information sheet
Scientific titleA new combined treatment for post-concussion syndrome: a pilot trial
Study objectivesAn investigational neuroactive combination therapy for post-concussion syndrome (PCS) is effective for the treatment of post-concussion syndrome.
Ethics approval(s)

Approved 23/12/2022, North West - Liverpool Central REC (3rd Floor, Barlow House, 4 Minshull Street, Manchester, M1 3DZ, United Kingdom; +44 (0)207 104 8118; liverpoolcentral.rec@hra.nhs.uk), ref: 22/NW/0285

Health condition(s) or problem(s) studiedPost-concussion syndrome
InterventionThe treatment comprises two generic drugs in tablet form, to be taken with water, three times daily until PCS resolves or the end of the 3-month trial duration. All participants will receive the treatment intervention.
Intervention typeDrug
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Investigational neuroactive combination therapy for PCS
Primary outcome measure(s)

The presence of post-concussion measured using the Rivermead Post Concussion Syndrome Questionnaire at baseline and week 12 or at full resolution of symptoms, whichever comes first

Key secondary outcome measure(s)

Pain and fatigue measured using the visual analogue scale at baseline and week 12 or at full resolution of symptoms, whichever comes first

Completion date01/12/2025

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit64 Years
SexAll
Target sample size at registration18
Key inclusion criteria1. PCS patients, aged 18 to 64 years. PCS is defined as the persistence of concussion symptoms, for more than 3 months after the initial concussion event
2. Current PCS confirmed by the presence of more than three symptoms on the Rivermead PCS
3. Not using any other pharmaceutical treatment for the management of PCS, e.g. antidepressants
4. Can provide signed informed consent
Key exclusion criteria1. Pregnancy
2. Breastfeeding
3. Hepatic insufficiency
4. Renal impairment
5. Any of the following BNF contraindications: acute porphyrias; epilepsy; Parkinson's disease; prostatic hypertrophy; pyloroduodenal obstruction; susceptibility to angle-closure glaucoma; urinary retention
6. Any of the following BNF contraindications: gastric ulcer; history of haemorrhagic stroke; increased risk of bleeding; recent or planned major surgery; underlying disorders of haemostasis; cerebral haemorrhage; Huntington's chorea
Date of first enrolment16/05/2023
Date of final enrolment01/03/2025

Locations

Countries of recruitment

  • United Kingdom
  • England

Study participating centre

Walkergate Park Centre for Neurorehabilitation and Neuropsychiatry
Benfield Road
Newcastle upon Tyne
NE6 4QD.
United Kingdom

Results and Publications

Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryData sharing statement to be made available at a later date
IPD sharing planThe data-sharing plans for the current study are unknown and will be made available at a later date

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes

Editorial Notes

12/05/2025: Internal review.
07/02/2025: A retrospective deferral of study information was granted by the HRA on 06/02/2025. IRAS number corrected.
14/10/2024: The following changes were made to the trial record:
1. A contact was removed.
2. The ethics approval was added.
09/09/2024: The following changes were made to the trial record:
1. The recruitment end date was changed from 01/09/2024 to 01/03/2025.
2. The overall end date was changed from 01/06/2025 to 01/12/2025.
3. The plain English summary was updated to reflect these changes.
4. The intention to publish date was changed from 01/01/2026 to 01/06/2026.
01/09/2023: The following changes were made to the trial record:
1. The recruitment end date was changed from 30/09/2023 to 01/09/2024.
2. The overall end date was changed from 30/06/2024 to 01/06/2025.
3. The plain English summary was updated to reflect these changes.
4. The intention to publish date was changed from 01/01/2025 to 01/01/2026.
05/06/2023: The following changes have been made:
1. The recruitment start date has been changed from 16/05/2022 to 16/05/2023.
2. The recruitment end date has been changed from 30/09/2022 to 30/09/2023.
3. The overall study end date has been changed from 30/06/2023 to 30/06/2024 and the plain English summary updated accordingly.
4. The intention to publish date has been changed from 01/01/2024 to 01/01/2025.
28/03/2022: Trial's existence confirmed by the Northern Accelerator.