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Study of Intravenous ATYR1923 for Pulmonary Sarcoidosis

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT03824392
Recruitment Status : Completed
First Posted : January 31, 2019
Last Update Posted : July 22, 2021
Foundation for Sarcoidosis Research
Information provided by (Responsible Party):
aTyr Pharma, Inc.

Brief Summary:
This randomized, double-blind, placebo-controlled, study will evaluate the safety, tolerability, immunogenicity, pharmacokinetic (PK), and preliminary efficacy of multiple ascending doses of IV ATYR1923 in patients with pulmonary sarcoidosis undergoing a protocol-guided oral corticosteroid (OCS) tapering regimen.This study will consist of 3 staggered multiple dose cohorts. Each eligible participant will participate in only one cohort during the study. Within each cohort, 12 participants will be randomized 2:1 to ATYR1923 (N=8) or placebo (N=4).

Condition or disease Intervention/treatment Phase
Pulmonary Sarcoidosis Biological: ATYR1923 1.0 mg/kg or placebo Biological: ATYR1923 3.0 mg/kg or placebo Biological: ATYR1923 5.0 mg/kg or placebo Phase 1 Phase 2

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 37 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description: 36 participants with pulmonary sarcoidosis will be randomized into one of 3 sequential cohorts, each comprising 12 participants allocated 2:1 to ATYR1923:Placebo
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomized, Double-Blind, Placebo-Controlled Multiple Ascending Dose Study of Intravenous ATYR1923 in Patients With Pulmonary Sarcoidosis
Actual Study Start Date : January 29, 2019
Actual Primary Completion Date : June 29, 2021
Actual Study Completion Date : June 29, 2021

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Sarcoidosis

Arm Intervention/treatment
Experimental: Cohort 1
ATYR1923 1.0 mg/kg or placebo
Biological: ATYR1923 1.0 mg/kg or placebo
ATYR1923 participants to receive ATYR1923 1.0 mg/kg IV every 4 weeks; Placebo participants to receive placebo IV every 4 weeks

Experimental: Cohort 2
ATYR1923 3.0 mg/kg or placebo
Biological: ATYR1923 3.0 mg/kg or placebo
ATYR1923 participants to receive ATYR1923 3.0 mg/kg IV every 4 weeks; Placebo participants to receive placebo IV every 4 weeks

Experimental: Cohort 3
ATYR1923 5.0 mg/kg or placebo
Biological: ATYR1923 5.0 mg/kg or placebo
ATYR1923 participants to receive ATYR1923 5.0 mg/kg IV every 4 weeks; Placebo participants to receive placebo IV every 4 weeks

Primary Outcome Measures :
  1. Incidence of treatment emergent adverse events and serious adverse events [ Time Frame: Baseline to Week 24 ]

Secondary Outcome Measures :
  1. Total cumulative steroid dose administered over study period [ Time Frame: Baseline to Week 24 ]
  2. Number of participants who achieve and maintain the targeted tapered dose of prednisone 5 mg/kg day [ Time Frame: Baseline to Week 24 ]
  3. Exposure response analysis comparing steroid dose area under the curve (AUC) with ATYR1923 PK parameters [ Time Frame: Baseline to Week 24 ]
  4. Incidence and titer of positive anti-drug-antibodies (anti-ATYR1923) [ Time Frame: Baseline to Week 24 ]
  5. Incidence and titer of anti-Jo-1 antibodies [ Time Frame: Baseline to Week 24 ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Key Inclusion Criteria:

  • Diagnosis of pulmonary sarcoidosis for ≥6 months (cutaneous and ocular involvement allowed), defined as:

    • Histologically proven diagnosis of sarcoidosis by bronchoscopy, biopsy (any organ) or bronchioalveolar lavage
    • Parenchymal lung involvement by historical radiological evidence
  • Must have symptomatic and/or active pulmonary sarcoidosis as evidence by:

    • Modified Medical Research Council Dyspnea Scale grade of >= 1; and
    • Forced vital capacity ≥50%; and
  • Receiving treatment with 10 to 25 mg/day of oral prednisone (or equivalent), at a stable dose for ≥4 weeks prior to Day 1, and capable of undergoing the protocol-specified steroid taper regimen.
  • Body weight ≥45 kg and <160 kg.

Key Exclusion Criteria:

  • Current disease presentation consistent with Lofgren's syndrome.
  • History of severe allergic or anaphylactic reactions to therapeutic proteins or known sensitivity to ATYR1923 or to its inactive components (L-histidine, sodium chloride, sucrose, L-methionine, and polysorbate-20).
  • Treatment with biological immunomodulators such as tumor necrosis factor-alpha inhibitors.
  • Current evidence of clinically significant cardiovascular, hepatic, renal, hematological, metabolic, or gastrointestinal disease, or has a condition that requires other treatment.
  • Clinically significant pulmonary hypertension requiring vasodilator treatment.
  • Any history of tuberculosis or evidence of active systemic non-tuberculosis fungal or mycobacterial infection within 1 year of Screening.
  • History of clinically significant cardiac, neurological, gastrointestinal, and/or renal manifestations of their sarcoidosis.
  • Any condition that necessitated hospitalization within the 3 months prior to Day 1 or is likely to require so during the study.
  • Participation in another clinical study of an investigational agent or device within 3 months (small molecules) / 6 months (biologics) or 5 half-lives (if known) of the agent, whichever is longer.
  • History of or positive results of screening for hepatitis B, hepatitis C or human immunodeficiency virus.
  • Is an active, heavy smoker of tobacco/nicotine-containing products (defined as >20 cigarettes/day or e-cigarette equivalent).
  • Active substance abuse or history of substance abuse within the 12 months prior to Screening.
  • Patient has received a live vaccination within 8 weeks before Day 1 or inoculation with a live vaccine is planned during study participation.
  • Positive for Jo-1 antibodies (Ab) at Screening, or past history of Jo-1 Ab positivity.
  • Significant and/or acute illness within 5 days prior to drug administration that may impact safety assessments, in the opinion of the Investigator.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03824392

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United States, Alabama
University of Alabama
Birmingham, Alabama, United States, 35294-0006
United States, California
aTyr Investigative Site
Northridge, California, United States, 91324
United States, Colorado
National Jewish Health
Denver, Colorado, United States, 80206
United States, Florida
aTyr Investigative Site
Miami, Florida, United States, 33125
United States, Georgia
Emory University
Atlanta, Georgia, United States, 30322
United States, Illinois
Northwestern University
Chicago, Illinois, United States, 60611
aTyr Investigative Site
Chicago, Illinois, United States, 60612
United States, Iowa
University of Iowa
Iowa City, Iowa, United States, 52242
United States, Kentucky
University of Louisville
Louisville, Kentucky, United States, 40202
United States, North Carolina
East Carolina University
Greenville, North Carolina, United States, 27858
United States, Ohio
University of Cincinnati
Cincinnati, Ohio, United States, 45267
Cleveland Clinic
Cleveland, Ohio, United States, 44195
United States, South Carolina
Medical University of South Carolina
Charleston, South Carolina, United States, 92425
United States, Texas
UT Southwestern Medical Center
Dallas, Texas, United States, 75390
United States, Virginia
Inova Fairfax Medical Center
Falls Church, Virginia, United States, 22042
Sponsors and Collaborators
aTyr Pharma, Inc.
Foundation for Sarcoidosis Research
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Study Director: Gennyne Walker aTyr Pharma, Inc.
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Responsible Party: aTyr Pharma, Inc.
ClinicalTrials.gov Identifier: NCT03824392    
Other Study ID Numbers: ATYR1923-C-002
First Posted: January 31, 2019    Key Record Dates
Last Update Posted: July 22, 2021
Last Verified: July 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by aTyr Pharma, Inc.:
Pulmonary Sarcoidosis
Lymphoproliferative Disorders
Interstitial Lung Disease
Oral corticosteroids
tRNA Synthetase
Additional relevant MeSH terms:
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Sarcoidosis, Pulmonary
Lymphoproliferative Disorders
Lymphatic Diseases
Hypersensitivity, Delayed
Immune System Diseases
Lung Diseases, Interstitial
Lung Diseases
Respiratory Tract Diseases