[Interaction between nitrous oxide and vitamin B12].
A C Kroes, J Lindemans, J Abels
https://pubmed.ncbi.nlm.nih.gov/4088327Actively Recruiting
Led by Nottingham University Hospitals NHS Trust · Updated on 2025-07-25
100
Participants Needed
3
Research Sites
N/A
Total Duration
N
Nottingham University Hospitals NHS Trust
Lead Sponsor
B
Barts & The London NHS Trust
Collaborating Sponsor
Researchers are studying neurological recovery in patients who have experienced nerve damage caused by nitrous oxide (NOS) abuse. Nitrous oxide is a commonly used recreational drug, especially among young people aged 16 to 24 in the UK. It can inactivate vitamin B12, which is essential for nerve health, leading to symptoms like tingling, weakness, and coordination problems. This study aims to better understand the severity and recovery from these nerve problems by following patients over 12 months in a prospective way, overcoming earlier studies' limitations related to short follow-up and small participant numbers. Participants will be recruited from hospitals, including neurology units and emergency departments, where they have been diagnosed with NOS-induced neurological damage by a neurologist. The study does not involve any treatment interventions but follows patients remotely through five scheduled assessments over 12 months. Data collected include neurological tests like finger tapping and cognitive function tasks, health questionnaires, and step counts. Initial hospital data such as MRI scans and blood tests will also be reviewed when available. The study uses a special platform to send participants links via text message for completing assessments remotely. Participants will be involved in five remote visits at baseline, 1 month, 3 months, 6 months, and 12 months, completing various questionnaires and tasks to monitor neurological recovery. The research team will track completed visits and send reminders as needed. A nested qualitative sub-study will interview some participants about their experiences with NOS, mental health, and treatment access. The main outcome measured is improvement in the finger tapping task over 12 months, along with cognitive function, physical activity, and neuropathy-related scales.
CONDITIONS
Neurological Recovery Following NOS-SACD
You may qualify if you...
You will not qualify if you...
Complete this quick 3-step screening to check your eligibility
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 screening and enrollment visit (in-person or via telephone)
Duration - At enrollment
Participants have their neurological assessment, MRI, blood tests, and concomitant medications reviewed, either in hospital or remotely. Initial questionnaires and cognitive tasks are completed.
1 baseline visit (in-person or remote)
Duration - 12 months
Participants complete remote follow-up assessments including cognitive tasks, health questionnaires, and activity monitoring over 12 months.
4 remote visits at 1 month, 3 months, 6 months, and 12 months
Total: 3 locations
1
University Hospitals Birmingham NHS Foundation Trust
Birmingham, United Kingdom
Actively Recruiting
2
Barts Health NHS Trust
London, United Kingdom
Actively Recruiting
3
Salford Royal NHS Foundation Trust
Manchester, United Kingdom
Actively Recruiting
N
Nikos Evangelou, FRCP, DPhil
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
1
Have more questions? Get in touch with our team for quick support
Explore thousands of other clinical trials that might be a better match.
Sign up to get personalized trial recommendations delivered to your inbox.
Already have an account? Log in here
A C Kroes, J Lindemans, J Abels
https://pubmed.ncbi.nlm.nih.gov/4088327Yetunde B Omotosho, Grace W Ying, Richard Orji...
https://pubmed.ncbi.nlm.nih.gov/35475085Adam R Winstock, Jason A Ferris
https://pubmed.ncbi.nlm.nih.gov/31679459R F Schilling
https://pubmed.ncbi.nlm.nih.gov/3951096T S Flippo, W D Holder
https://pubmed.ncbi.nlm.nih.gov/8250714Kishan K Patel, Juan Carlos Mejia Munne, Vimal Raj Nitish Gunness...
https://pubmed.ncbi.nlm.nih.gov/30144777Adam Seed, Meesha Jogia
https://pubmed.ncbi.nlm.nih.gov/32414730Frederico Carvalho de Medeiros, Lucas Alverne Freitas de Albuquerque, Renata Brant de Souza...
https://pubmed.ncbi.nlm.nih.gov/23468407Hussein Algahtani, Bader Shirah, Nawal Abdelghaffar...
https://pubmed.ncbi.nlm.nih.gov/32201677Grace Swart, Christopher Blair, Zhong Lu...
https://pubmed.ncbi.nlm.nih.gov/34427020