NCT03770663

Brief Summary

"Antisynthetase syndrome (ASS) is one of the most severe inflammatory myopathy (IM), due to pulmonary involvement (interstitial lung disease, ILD). Until now, the most commonly used immunosuppresive therapy in Europe is Cyclophosphamide followed by different immunosuppressive drugs as maintenance therapy, including Azathioprine (and so called " European Strategy "). In the USA however, the first-line immunosuppressive treatment is Tacrolimus (so called " American Strategy "). None of these two different strategies has ever been studied prospectively, and there is no clear comparison of short and long-term treatment efficacy and tolerance. Thus, there are yet no evidences helping the clinicians in the therapeutic management of patients with ASS-related ILD. The aim of this study is therefore to compare both strategies as first line treatments or in relapsing patients : CATR.PAT study is a 52 weeks, randomized, comparative, controlled, open-labeled, phase III, therapeutic clinical trial, comparing two treatment strategies."

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
76

participants targeted

Target at below P25 for phase_3

Timeline
Completed

Started Feb 2021

Typical duration for phase_3

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 7, 2018

Completed
3 days until next milestone

First Posted

Study publicly available on registry

December 10, 2018

Completed
2.2 years until next milestone

Study Start

First participant enrolled

February 5, 2021

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 2, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 2, 2024

Completed
Last Updated

February 9, 2021

Status Verified

February 1, 2021

Enrollment Period

2.9 years

First QC Date

December 7, 2018

Last Update Submit

February 6, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Progression free survival

    Compare the efficacy of Cyclophosphamide and Azathioprine vs Tacrolimus in patients with ASS related-ILD Time from the initiation of treatment to the first event related to ASS related-ILD (progression free survival)

    From baseline to 12 months

Secondary Outcomes (9)

  • Variation of the six minute walk tests

    at baseline, 3 months, 6 months, 9 months and 12 months

  • Forced Vital Capacity (FVC)

    at baseline, 3 months, 6 months, 9 months and 12 months

  • Diffusing Lung Carbon Monoxyde Capacity (cDLCO)

    at baseline, 3 months, 6 months, 9 months and 12 months

  • Rate of pulmonary improvement

    at baseline, 3 months, 6 months, 9 months and 12 months

  • Time to extra-pulmonary improvement

    at each visits

  • +4 more secondary outcomes

Study Arms (2)

European strategy

EXPERIMENTAL

3 IV pulses of Methylprednisolone (7.5 mg/kg/day followed by tapering doses of oral Prednisone, started at 1 mg/kg/day from D4 to M12 In association with: 6 IV pulses of Cyclophosphamide (1000mg) followed from M5 to M12 by oral Azathioprine (2mg/kg/day), with a maximum of 150mg/day

Drug: Cyclophosphamide and azathioprine

American strategy

EXPERIMENTAL

3 IV pulses of Methylprednisolone (7.5 mg/kg/day followed by tapering doses of oral Prednisone, started at 1 mg/kg/day from D4 to M12 In association with: Tacrolimus given orally from M0 to M12 (started at the initial dose of 2x2mg/day). Tacrolimus doses are regularly adapted to its serum concentration to reach 5-15ng/mL.

Drug: Tacrolimus

Interventions

European strategy 6 IV pulses of Cyclophosphamide (1000mg) followed from M5 to M12 by oral Azathioprine (2mg/kg/day), with a maximum of 150mg/day

European strategy

American strategy Tacrolimus given orally from M0 to M12 (started at the initial dose of 2x2mg/day). Tacrolimus doses are regularly adapted to its serum concentration to reach 5-15ng/mL.

American strategy

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥ 18
  • Signed informed consent
  • Affiliation to the Social security system
  • Diagnosis of ASS: positive test for any of the 5 anti-tRNA synthetase antibodies routinely tested (ELISA, Luminex or Linear-dot), including anti-Jo-1, anti-PL7, anti-PL12, anti-EJ and anti-OJ.
  • Diagnosis of ILD-related ASS: interstitial lung disease on HRCT.
  • Moderate to severe ILD on PFT : FVC \< 80% and or cDLCO \< 70%
  • beta-HCG test negative or negative uterine echography (for women of child bearing potential)
  • Women of childbearing potential must have an oral contraception (macroprogestatifs) during all the duration of study treatment and 12 months after the last dose of study treatment
  • Males who are sexually active with women of childbearing potential must agree to follow instructions for method(s) of contraception for the duration of study treatment and 6 months after the last dose of study treatment

You may not qualify if:

  • Pregnancy and/or breast feeding
  • Others contraindications to the treatments, including hypersensitivity to the drug (including excipient and active compounds), medical contraception contraindications, severe renal failure, severe hepatic insufficiency and severe psychiatric disorders. Specific contraindications are listed for each experimental medication in Table 6 (according to updated Summary of product characteristics, see Appendix 8)
  • Fever or active bacterial infection (ie. septicemia, pneumopathy, pyelonephritis, acute prostatitis …), or parasitic infection (ie. Anguillulosis …),or fungal infection (ie. Invasive pulmonary aspergillosis …), or viral infection (HIV seropositivity, Active Tuberculosis, active B/C viral hepatitis, CMV, active EBV…)
  • Active neoplasm
  • Previous inefficacy of Cyclophosphamide, Azathioprine or Tacrolimus, not related to adhesion problems.
  • Previous use of 3 daily IV steroids \< 3 months before patient's enrollment.
  • ASS-related ILD worsening or relapse under Prednisone \> 0.5 mg/kg/day
  • Previous use of Cyclophosphamide, Azathioprine or Tacrolimus in the last 6 months.
  • Severe ASS requiring ICU (respiratory disease, myocarditis), plasma exchange or IV-Ig.
  • Positivity of auto-antibodies associated to Systemic Sclerosis (anti-Telomerase, anti-Centromères, anti-Polymerase III).
  • Patients with QTc \> 450 msec
  • Patients with history of long QT syndrome (including familial) or ventricular arrhythmias
  • Concomitant use of drugs prolonging QT / QTc (list of treatments in annex)
  • Hypokalemia
  • Patients with pulmonary hypertension detected on echocardiography during the screening/selection visit (systolic pulmonary artery pressure (PAP) was 37-50 mmHg, and/or tricuspid regurgitation velocity 2.8-3.4 ms-1) are excluded.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hôpital Universitaire Pitié Salpêtrière

Paris, 75013, France

RECRUITING

MeSH Terms

Conditions

Antisynthetase syndromeLung Diseases, Interstitial

Interventions

CyclophosphamideAzathioprineTacrolimus

Condition Hierarchy (Ancestors)

Lung DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Phosphoramide MustardsNitrogen Mustard CompoundsMustard CompoundsHydrocarbons, HalogenatedHydrocarbonsOrganic ChemicalsPhosphoramidesOrganophosphorus CompoundsThionucleosidesSulfur CompoundsMercaptopurinePurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsNucleosidesNucleic Acids, Nucleotides, and NucleosidesMacrolidesLactones

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 7, 2018

First Posted

December 10, 2018

Study Start

February 5, 2021

Primary Completion

January 2, 2024

Study Completion

January 2, 2024

Last Updated

February 9, 2021

Record last verified: 2021-02

Locations