ClinicalTrials.gg
Active, not recruitingNCT01171573UKMYONETUpdated Apr 5, 2023

Investigating Genes in Patients With Polymyositis and Dermatomyositis

An observational study in Myositis, sponsored by Northern Care Alliance NHS Foundation Trust. Active, not recruiting at 1 site in United Kingdom. Open to participants aged 18 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-04-05.

Primary conditionDermatomyositisRegistry: MyositisReclassifiedWhy we changed it
Registry
Myositis — the first condition term the registry derived for this study.
ClinicalTrials.gg
Dermatomyositis
Why
  1. The study's title name Dermatomyositis, a narrower term within Myositis.
Confidence
High: the new condition is named in the study's own title. Of 46 hand-checked studies reclassified this way, 72% were exactly right and 89% in the right disease family; the registry's first term was right for 4% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Northern Care Alliance NHS Foundation Trust · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
1,000
Ages
18 Years to 70 Years
Sex
All
01

Study summary

Polymyositis (PM), dermatomyositis (DM) and inclusion body myositis (IBM)belong to a group of inflammatory muscle disorders, of unknown cause, that are characterised by skeletal muscle inflammation and progressive muscular weakness, which can be debilitating and chronic in nature (occasionally fatal).

The current treatment options for these conditions are steroids and various other immunosuppressive drugs. However, these are usually only partially effective at reducing symptoms, and their toxic side effects also limit their usefulness. In order to develop more specific treatments for myositis in the future (and therefore more effective), it is important to understand the exact mechanisms that cause the disease in the first instance. In other similar inflammatory diseases such as rheumatoid arthritis (RA) and systemic lupus (SLE), it is known that changes to the Human Leukocyte Antigen(HLA), as well as certain inflammatory cytokines, are involved in both the development and expression of the disease.

As many of the inflammatory mechanisms that cause damage in PM, DM and IBM are similar to those in RA and SLE, it seems likely that similar genetic factors will also be involved in the development and expression of PM, DM and IBM.

In order to understand the genetic aspects / causes of myositis, and ultimately develop more effective treatment therapies in the future, patients with PM, DM or IBM, will be asked to give 20 mls of blood. These blood samples, along with the patient's clinical details, will then be sent to the Centre for Integrated Genomic Medical Research (CIGMR), at The University of Manchester, where all of the genetic analyses will take place. By understanding the genetic cause of the disease, it should be possible to design specific drugs for treating the condition in the future.

Read the detailed description

In order to understand the genetic aspects / causes of myositis, and ultimately develop more effective treatment therapies, it will be necessary to collect blood samples and clinical details from around 1000 patients with myositis. As the condition is very rare, it will not be possible to get the required number of patients from one centre alone, and therefore, a collaborative, multicentred approach will be needed. Consultant rheumatologists and neurologists throughout the UK, who have patients with PM, DM or IBM, will be approached, and asked if they would like to officially enter into the myositis genomic multicentred study. Once ethical and R\&D approval has been granted, consultants will be named as the 'Principal Investigators' at each of these 'research sites' and could then start to recruit suitable patients into the study.

Patients from each research site, with definite PM, DM or IBM, will be asked by their own consultants (Principal Investigator) to give 20 mls of blood via venepuncture for genetic and antibody analysis. The PI will also complete a clinical/laboratory proforma, for each patient, regarding their disease characteristics, to allow subsequent confirmation that patients' disease is indeed definite, and this proforma and the blood sample will be sent to CIGMR. All of the genetic analyses, will take place at CIGMR, but storage of clinical details and certain patient identifiers will be stored at SRFT on a password protected NHS tust computer.

This study will be co-ordinated by Dr RG Cooper through the Rheumatic Diseases Centre, Salford Royal NHS Foundation Trust (SRFT), and Professor Bill Ollier from the Centre for Integrated Genomic Medical Research unit (CIGMR), Stopford Building, Manchester University.

02

Conditions studied

  • Myositis

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Keywords

  • Polymyositis
  • Dermatomyositis
  • Inclusion Body Myositis
03

In context

Dermatomyositis Reclassified

184 studies on the registry are indexed under Dermatomyositis; 63 are open to participants now.

This study's planned enrollment of 1,000 is above the median of 179 across 45 observational studies indexed under Dermatomyositis.

Browse Dermatomyositis studies →

Lead sponsor

Northern Care Alliance NHS Foundation Trust is the lead sponsor of 6 studies on the registry; 1 is open to participants now.

Compared within Dermatomyositis, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Myositis. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

Potential participants will be identified at their routine attendance of myositis clinics at participating centres, by the study PI. Before recruitment, each prospective candidate will be given a full explanation of the study, provided with a patient information sheet (PIS) and consent form to read, and given the opportunity to ask any questions that may arise. Once all questions have been answered and the Principal Investigator is assured that the individual understands what is required, informed consent can then be sought.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Cases must fulfil Bohan and Peter Diagnostic Criteria for Adult PM/DM

  1. Symmetrical weakness of limb-girdle muscles and/or anterior neck flexors.
  2. Muscle evidence typical of myositis.
  3. Elevation of serum skeletal muscle enzymes.
  4. Typical EMG features of myositis.
  5. Typical DM rash, including:

Probable / definite PM: at least 3 of items 1-4 +ive. Probable / definite DM: item 5 \& at least 2 of items 1-4 +ive.

Exclusion criteria

Exclusion Criteria:

  • Patients below the age of 18 years
  • Patients with myositis secondary to alcohol or drug abuse, non abusive drug ingestion (e.g with statins, fibrates etc)
  • Patients with myositis following a recent viral illnesses.
  • Patients unable to consent for themselves due to diminished mental capacity
  • Patients that can not speak sufficiently good English.
  • Patients unwilling to give blood sample.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
1,000 participants (estimated)
Biospecimen retention
Samples with dna

Groups and cohorts

  • Myositis Patients

    Cases with myositis PM DM IBM Venepuncture

    Procedure: Venepuncture

  • Healthy controls

    Control

    Procedure: Venepuncture

Interventions

  • ProcedureVenepuncture

    Venepuncture - Taking blood

06

What researchers measure

Primary outcomes

  1. To identify any disease susceptibility genes associated with development and clinical characteristics of primary inflammatory muscle diseases, PM, DM and IBM.

    Blood sample, DNA analysis, along with clinical data, matching genotype with phenotype

    Time frame: 20 years

07

Study locations

1 site
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 5, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01171573
Lead sponsor
Northern Care Alliance NHS Foundation Trust
Responsible party
Hector Chinoy (Senior Lecturer/Consultant Rheumatologist, University of Manchester) — Principal investigator
First posted
Jul 28, 2010
Start date
Jan 2001
Primary completion
Dec 2030 (estimated)
Completion
Dec 2030 (estimated)
Last update
Apr 5, 2023

Study contacts

Robert Dr Cooper
principal investigator · SRFT

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Apr 2023. You cannot join it, but the record below documents what was studied.

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