BMJ Open (May 2023)

ADAMS project: a genetic Association study in individuals from Diverse Ancestral backgrounds with Multiple Sclerosis based in the UK

  • Gavin Giovannoni,
  • Eli Silber,
  • Ruth Dobson,
  • Riffat Tanveer,
  • Jade Harris,
  • Tarunya Arun,
  • Miriam Mattoscio,
  • Ghaniah Hassan-Smith,
  • Huw Morris,
  • Rod Middleton,
  • Emma Tallantyre,
  • David Rog,
  • Nikos Evangelou,
  • Benjamin M Jacobs,
  • Antonio Scalfari,
  • Waqar Rashid,
  • Helen L Ford,
  • Charles A Mein,
  • Stephen Sawcer,
  • Cord Spilker,
  • Bruno Gran,
  • Martin O'Malley,
  • Ashwini Nandoskar,
  • Emeka Uzochukwu,
  • Katila George,
  • Sadid Hoque,
  • Luisa Schalk,
  • Angie Dunne,
  • Charlotte Sellers,
  • Elisa Visentin,
  • Elizabeth Lindsey Bezzina,
  • Eva Wozniak,
  • Eve Sacre,
  • Joan Bradley,
  • Joshua Breedon,
  • Judith Brooke,
  • Karim L Kreft,
  • Katherine Tuite Dalton,
  • Maria Papachatzaki,
  • Michelle Peter,
  • Neisha Rhule,
  • Nimisha Vinod,
  • Outi Quinn,
  • Ramya Shamji,
  • Rashmi Kaimal,
  • Rebecca Boulton,
  • Roxanne Murray,
  • Ruth Bellfield,
  • Shakeelah Patel,
  • Sonia Raj,
  • Stephanie Gumus,
  • Stephanie Mitchell,
  • Tatiana Pogreban,
  • Terri-Louise Brown,
  • Thamanna Begum,
  • Veronica Antoine

DOI
https://doi.org/10.1136/bmjopen-2023-071656
Journal volume & issue
Vol. 13, no. 5

Abstract

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Purpose Genetic studies of multiple sclerosis (MS) susceptibility and severity have focused on populations of European ancestry. Studying MS genetics in other ancestral groups is necessary to determine the generalisability of these findings. The genetic Association study in individuals from Diverse Ancestral backgrounds with Multiple Sclerosis (ADAMS) project aims to gather genetic and phenotypic data on a large cohort of ancestrally-diverse individuals with MS living in the UK.Participants Adults with self-reported MS from diverse ancestral backgrounds. Recruitment is via clinical sites, online (https://app.mantal.co.uk/adams) or the UK MS Register. We are collecting demographic and phenotypic data using a baseline questionnaire and subsequent healthcare record linkage. We are collecting DNA from participants using saliva kits (Oragene-600) and genotyping using the Illumina Global Screening Array V.3.Findings to date As of 3 January 2023, we have recruited 682 participants (n=446 online, n=55 via sites, n=181 via the UK MS Register). Of this initial cohort, 71.2% of participants are female, with a median age of 44.9 years at recruitment. Over 60% of the cohort are non-white British, with 23.5% identifying as Asian or Asian British, 16.2% as Black, African, Caribbean or Black British and 20.9% identifying as having mixed or other backgrounds. The median age at first symptom is 28 years, and median age at diagnosis is 32 years. 76.8% have relapsing–remitting MS, and 13.5% have secondary progressive MS.Future plans Recruitment will continue over the next 10 years. Genotyping and genetic data quality control are ongoing. Within the next 3 years, we aim to perform initial genetic analyses of susceptibility and severity with a view to replicating the findings from European-ancestry studies. In the long term, genetic data will be combined with other datasets to further cross-ancestry genetic discoveries.