Summary

Eligibility
for people ages 40 years and up (full criteria)
Dates
study started
estimated completion
Principal Investigator
by Tahseen Mozaffar, MD FAAN, FANA

Description

Summary

This is a prospective natural history study on patients with clinically defined sIBM. Participants will be assessed every 6 months over two years (five visits total). We will include 150 participants, enrolled across 13 sites, with sporadic IBM, diagnosed according to established criteria.

Official Title

Influence of NT5c1A Antibodies on Disease Progression, Clinical Phenotype and Blood and Muscle Biomarkers in Sporadic Inclusion Body Myositis - A Prospective Evaluation (INSPIRE-IBM Study)

Details

This is a prospective natural history study on patients with clinically defined sIBM. Participants will be assessed every 6 months over two years (five visits total). We will include 150 participants with sporadic IBM, diagnosed according to established criteria. Participants will require an routine serum sample via blood draw to evaluate for NT5c1A antibody status. This testing will be performed at Washington University School of Medicine in the Neuromuscular Laboratory. Investigators will be blinded to antibody status. A subset of participants (40) will undergo a muscle biopsy at the Baseline visit. Aim 1. To determine for the first time whether NT5c1A antibodies mediate disease progression over a two-year interval in patients with sIBM. We will perform a prospective, non-interventional, observational study on patients with sIBM with follow up and evaluations every 6 months over a two-year time frame. Primary analyses are: 1) the rates of disease progression and severity as measured by rates of decline in IBM Functional Rating Scale (IBMFRS) score and Timed Get Up and Go (TUG); 2) the presence or absence of serum antibodies to NT5c1A; and 3) the presence and frequency of variant T-cells in the serum and skeletal muscle. Aim 2. To perform a detailed morphological, histochemical and immunohistochemical analysis of fresh muscle biopsy specimens obtained from a subset of patients with sIBM. Aim 3. To characterize the distribution of "immunosenescent" lymphocytes in circulating blood from patients with sIBM. Aim 4. To quantify the decline in the respiratory function of sIBM patients.

Keywords

Sporadic Inclusion Body Myositis Inclusion Body Myositis Myositis Myositis, Inclusion Body

Eligibility

You can join if…

Open to people ages 40 years and up

  1. Ages 40 years and older
  2. Fulfills ENMC 2011 criteria of clinically definite or probable sporadic Inclusion body myositis (sIBM)
  3. Disease onset is within the past 10 years of the time of Baseline visit
  4. Able to participate and comply with study related procedures
  5. Able to provide written consent

You CAN'T join if...

  1. Current or very recent use (within last 6 months of the Baseline visit) of immunomodulation or immunosuppression therapy.
  2. Current or very recent use (within last 90 days of the Baseline visit) of an investigational medication or therapy.
  3. Co-existing significant medical or surgical conditions that, in the opinion of the investigator, will influence study participation or alter natural history.

Lead Scientist at UC Irvine

Details

Status
not yet accepting patients
Start Date
Completion Date
(estimated)
Sponsor
University of California, Irvine
ID
NCT05046821
Study Type
Observational
Last Updated