JAK 1/2 Inhibitor, Baricitinib, in the Treatment of Adult IIM (MYOJAK)

  • STATUS
    Recruiting
  • End date
    Oct 31, 2023
  • participants needed
    25
  • sponsor
    University of Manchester
Updated on 3 June 2022
methotrexate
prednisone
MRI
weakness
hydroxychloroquine
muscle biopsy
a 12
arthritis
azathioprine
rash
dermatomyositis
polymyositis
muscle enzyme

Summary

This study aims to investigate the clinical efficacy of baricitinib in patients with adult idiopathic inflammatory myositis (IIM). Half of the patients enrolled onto the study will receive 24 weeks of baricitinib from the baseline visit with a 12 week follow-up period. The other half of patients will receive 24 weeks of barcitinib treatment after an initial 12-week delay with a 4 week follow up period for safety.

Description

Potential participants will attend a screening visit to confirm their eligibility to participate in the trial. Once eligibility is confirmed the participant will be randomised to receive 24 weeks of baracitinib from the baseline visit with 12 weeks of follow up or receive 24 weeks of baracitinib after a delayed-start of 12 weeks from the baseline visit.

Participants will attend study visits every 4 weeks starting at the baseline visit at week 0. At each visit data will be collected about the following:

  1. Muscle function
  2. Signs of disease activity
  3. Vital signs
  4. Physical examination
  5. A blood test to check blood count, liver and kidney function and markers of inflammation for safety purposes.
  6. Participant reported assessment of how disease disease is progressing.

In addition the following data will be collected at week 0, week 12, week 24 and week 36:

  1. Signs of disease damage
  2. Blood and urine sample collection for biomarker analysis
  3. Additional muscle function and disease activity assessments
  4. Participant reported assessment of how disease affects their day-to-day life.

Details
Condition Idiopathic Inflammatory Myopathies
Treatment Baricitinib
Clinical Study IdentifierNCT04208464
SponsorUniversity of Manchester
Last Modified on3 June 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Participant meets EULAR/ACR classification criteria for polymyositis (PM) or dermatomyositis (DM) (at least 55% probability)
Persisting disease activity as defined in (3), after a minimum of 12 weeks treatment with prednisolone or equal drug. The history of treatment with prednisolone (or equal) should include the dose of ≥ 20mg/day for at least 4 weeks. Prednisolone should be at a stable dose of ≤ 20 mg/day for at least 4 weeks prior to the baseline visit
Inflammatory active disease based on persisting or worsening muscle weakness; MMT < 150 or low endurance (FI-3 < 20% of upper value), together with at least one other sign of active disease: elevated serum levels of at least one muscle enzyme (CK, LDH, AST, ALT) above upper limit of normal and being explained by muscle involvement and no other cause e.g. liver disease, inflammation in recent muscle biopsy or on MRI scans (<12 weeks), or active extra muscular disease: dermatomyositis-specific skin rash, arthritis or interstitial lung disease (ILD) (as suggested by chest x-ray/ high resolution computerised tomography (HRCT) or pulmonary function test (reduction of TLCO by 15% and/or FVC by 10% from baseline)) and on the treating physicians' judgement. In particular, patients who meet the inclusion criteria but with less than moderate disease activity should only be included at the discretion of the PI
If criteria in (2) not met, then to fulfil sum of Physician global assessment, participant global assessment and extra muscular global assessment visual analogue scale (VAS) score ≥ 10 cm (all scales individually on 0-10 cm scale)
For polymyositis, a participant can be included if they are positive for myositis specific (anti-synthetase, NXP2, SAE1, TIF1g, Mi2, MDA5,) or myositis-associated autoantibodies (Ro52, Ro60, PmScl, RNP). Polymyositis will be included after a judicial process by the three PIs
Are receiving at least one of the following standard of care medications within the required timeframe
A single antimalarial (e.g. hydroxychloroquine) for 3 months and at a stable therapeutic dose for at least 8 weeks prior to the screening visit
A single immunosuppressant (such as methotrexate (MTX), azathioprine, mycophenolate) for 3 months and at a stable therapeutic dose for at least 4 weeks prior to the screening visit
An oral corticosteroid, at a stable dose ≤ 20 mg/day prednisone (or equivalent), for at least 4 weeks prior to baseline (visit 1)
Age ≥18 years
Full capability of providing informed consent

Exclusion Criteria

Participants with other types of inflammatory myopathies including
Drug induced myositis
Inclusion body myositis
Malignancy-associated myositis
Immune-mediated necrotizing myopathy
Participants unable to participate in clinical assessments or provide biological
specimens as per the study protocol
Participants where the use of bariticinib would be contraindicated
Participants with known allergies to IMP or excipients
Women with a positive pregnancy test on enrolment or prior to start of study drug administration
Women who are known to be pregnant or breastfeeding
Women of child bearing potential (WOCBP) who are unwilling or unable to use an acceptable method to avoid pregnancy for the entire study period and for at least 1 week after treatment (Please see Appendix 3 for definitions and acceptable methods of contraception)
Current symptoms of severe, progressive, or uncontrolled renal, hepatic, haematological, gastrointestinal, pulmonary, cardiac, neurological, ophthalmologic or cerebral disease with the exception of those symptoms that are a manifestation of polymyositis or dermatomyositis
Concomitant medical conditions that in the opinion of the investigator might place the subject at unacceptable risk for participation in this study
Participants with a history of venous thromboembolism including deep vein thrombosis and pulmonary embolism
Participants with a history of cancer within the last five years (other than non-melanoma skin cell cancers cured by local resection), including carcinoma-in-situ. Existing non-melanoma skin cell cancers must be removed prior to IMP dosing. Participants with dermatomyositis need to be screened for malignancies according to routine procedures
Participants who have a history of clinically significant drug or alcohol abuse. Subjects currently taking MTX who admit to consumption of more than an average of 1 alcoholic drink per day
Participants with any serious bacterial infection (such as pneumonia, other renal infection and sinusitis), unless treated and resolved with antibiotics
Participants with any chronic bacterial infection (such as pyelonephritis and chest infection with bronchiectasis) in the previous 12 weeks before screening
Participants with active tuberculosis (TB) requiring treatment within the previous 3 years. Subjects with a positive PPD and/or Quantiferon assay at screening will not be eligible for the study unless they have completed at least 4 weeks of treatment for latent TB, have a negative chest x-ray at enrolment, and commit to completing the course during the study. Such cases should be discussed with a respiratory physician as per local guidelines. A PPD response that is equal to or greater than 10 mm should be considered a positive test, although more conservative criteria may be applied as determined by the clinical circumstance and investigator according to published guidelines and/or local standards endorsed by the medical society. PPD and/or Quantiferon positive participants who have previously completed treatment for latent tuberculosis according to the local guidelines may be considered for enrolment. Equivocal Quantiferon results will need to be discussed with a local respiratory physician
Participants with herpes zoster that resolved less than 8 weeks prior to the screening visit
Participants with evidence (as assessed by the Investigator) of active or latent bacterial or viral infections at the screening visit, including subjects with evidence of Human Immunodeficiency Virus (HIV) infection, positive HepBsAg, HepBcAb or hepatitis C antibody
Significant toxicities associated with concomitant or previous immunosuppressive/biologic therapy that would preclude subjects from participating and completing the study
Participants with clinically apparent immunodeficiency syndrome, (IgA deficiency alone is not an exclusion criterion)
Participants with any of the following laboratory values at screening
Haemoglobin (Hb) < 80 g/litre
Absolute lymphocyte count (ALC) < 500 cells/mm3
Absolute neutrophil count (ANC) < 1000 cells/mm3
Platelets <100,000/mm3 (100 x 109/L)
Creatinine clearance <30ml/min. Note: participants with creatinine clearance between 30-60mL/min should receive a reduced oral dose of 2mg baricitinib OD
Any other laboratory test results that, in the opinion of the investigator, might place the subject at unacceptable risk for participation in this study
For participants previously treated with rituximab: B cell levels less than lower
limit of normal as measured by Fluorescent Activated Cell Sorting (FACS)
analysis
For all participants who have received prior rituximab, a normal CD19 B cell count must be documented at the time of screening for this study
Participants who have received treatment with any investigational drug within 28 days of the first dose of IMP
Participants who have at any time received treatment with JAK/STAT inhibitors
Administration of live/ attenuated vaccines in the 4 weeks prior to screening and during the study. Effect on vaccine efficacy or the risk of infection transmission is unknown. In addition, clinical safety has not been established
Concomitant use of targeted biologic therapies at any time during the study
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