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Completed

NCT Number: NCT01988506

Induction of Regulatory t Cells by Low Dose il2 in Autoimmune and Inflammatory Diseases

TRANSREG will assess the safety and biological efficacy of low-dose IL2 as a Treg inducer in a set of 14 autoimmune and auto-inflammatory diseases, with the aim to select diseases in which further therapeutic development will be performed. Extensive biological- and immune-monitoring pre- and post-IL2 will contribute (i) to define the common or distinct processes responsible for the breakdown of immunological tolerance in these pathologies and (ii) to discover potential biomarkers of the IL2 response.

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Key information

Conditions

Rheumatoid Arthritis Ankylosing Spondylitis Ankylosis Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis Aortic Arch Syndromes Aortic Diseases Arthritis Arthritis, Rheumatoid Autoimmune Diseases Autoimmune Hepatitis Axial Spondyloarthritis Behcet Syndrome Behcet's Disease Bile Duct Diseases Biliary Tract Diseases Blood Coagulation Disorders Blood Platelet Disorders Bone Diseases Cardiovascular Diseases Cholangitis Cholangitis, Sclerosing Colitis Colitis, Ulcerative Colonic Diseases Congenital, Hereditary, and Neonatal Diseases and Abnormalities Connective Tissue Diseases Crohn Disease Crohn's Disease Cytopenia Digestive System Diseases Eye Diseases Gastroenteritis Gastrointestinal Diseases Genetic Diseases, Inborn Gougerot-sjögren Granulomatosis with Polyangiitis Hematologic Diseases Hemic and Lymphatic Diseases Hemorrhage Hemorrhagic Disorders Hepatitis Hepatitis, Autoimmune Hepatitis, Chronic Hereditary Autoinflammatory Diseases Idiopathic Thrombocytopenic Purpura Immune System Diseases Inflammation Inflammatory Bowel Diseases Intestinal Diseases Joint Diseases Liver Diseases Lung Diseases Lung Diseases, Interstitial Lupus Erythematosus, Systemic Mouth Diseases Musculoskeletal Diseases Panuveitis Pathologic Processes Pathological Conditions, Signs and Symptoms Psoriasis Purpura Purpura, Thrombocytopenic Purpura, Thrombocytopenic, Idiopathic Respiratory Tract Diseases Rheumatic Diseases Scleroderma, Systemic Sclerosing Cholangitis Signs and Symptoms Skin Diseases Skin Diseases, Genetic Skin Diseases, Papulosquamous Skin Diseases, Vascular Skin Manifestations Skin and Connective Tissue Diseases Spinal Diseases Spondylarthritis Spondylarthropathies Spondylitis Spondylitis, Ankylosing Stomatognathic Diseases Systemic Lupus Erythematosus Systemic Sclerosis Systemic Vasculitis Takayasu's Disease Thrombocytopenia Thrombotic Microangiopathies Ulcerative Colitis Uveal Diseases Uveitis Uveitis, Anterior Vascular Diseases Vasculitis Wegener's Granulomatosis

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

CIC - Hôpital PITIE SALPETRIERE, Paris, Île-de-France Region, France

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About this study

Protocol: TRANSREG is a multicentric, uncontrolled, open-label study, comparing biological and clinical responses to the administration of low doses IL2 across 14 selected pathologies: rheumatoid arthritis, ankylosing spondylitis, systemic lupus erythematosus, psoriasis, Behcet's disease, Wegener's granulomatosis, Takayasu's disease, Crohn's disease, ulcerative colitis, autoimmune hepatitis, sclerosing cholangitis, Gougerot-sjögren, Systemic Sclerosis and Idiopathic Thrombocytopenic Purpura. Methods: Each patient will receive 1MUI /day of IL2 from Day-1 to Day-5 (the induction period), and then every 2 weeks (except systemic lupus erythematosus's patients will received every week) from Day-15 to Day-180 (the maintenance period). Patients will thereafter be followed up for 12 months (Day-181-Day-540). For each pathology, 6 patients will be included at Pitié-Salpêtrière, Cochin, Saint Antoine, Paul Brousse and Henri Mondor hospitals in Paris and Créteil, France. An interim analysis will be performed in each pathology group when the first six patients have received at least 3 months of treatment. In those pathology groups in which a Treg response will be documented, six additional patients will be included. In total, a minimum of 84 patients and up to 132 patients will be enrolled in this study. Primary efficacy endpoint is the Treg response at Day-8 compared to baseline. Secondary efficacy endpoints are:- evolution of the Treg response during the maintenance period,- the changes in markers of inflammation - the clinical response, evaluated by means of global generic scales [Clinical Global Impression severity scale (CGI-sev) and Clinical Global Impression efficacy index (CGI-eff)] as well as specific clinical and biological evaluations for each disease, - the frequency of relapses, - the assessment of quality of life (scale EuroQL-5). Expected Results: TRANSREG will define which patients respond to IL2, whether per pathology or according to pre-treatment phenomics, allowing to guide further clinical development of low dose IL2 in autoimmune and auto-inflammatory diseases.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • age > 18 year
  • male or female
  • documented diagnosis of one AIID among the 14 diseases selected (following consensual specific criteria)
  • stable or moderately active disease (except Lupus) under standard treatment (≥ 2 months) at the time of inclusion (except Sclerosing Cholangitis, Gougerot-sjögren, Takayasu's Disease and Systemic Sclerosis)
  • normal thyroid function (with or without treatment)
  • effective contraception for more than two weeks at inclusion and negative beta HCG test for women of childbearing potential,
  • affiliated to the social security system
  • written informed consent form.

Exclusion criteria

  • known intolerance for IL2 (see SPC),
  • administration of a non-authorized treatment and/or IV bolus of corticosteroids in the last 2 months,
  • vaccination with live attenuated virus in the months preceding the inclusion or planned during the study
  • other severe or progressive autoimmune/inflammatory pathology,
  • low white blood cell count<2000/mm3, lymphocytes <600/mm3, platelets <80 000/mm3,
  • heart failure (≥ grade III NYHA), renal insufficiency (Cockcroft< 60ml/mn except patients with lupus or Wegener's granulomatosis) or hepatic insufficiency (transaminases> 5N except for patients with autoimmune hepatitis), or lung failure,
  • significant abnormality in chest X-ray other than these linked to the diseases under investigation
  • cancer or history of cancer cured for less than five years (except in situ carcinoma of the cervix or basocellular carcinoma)
  • poor venous access not allowing repeated blood tests,
  • restrictive diet or parenteral nutrition,
  • surgery during the last 2 months or surgery planned during the study,
  • participation in other biomedical research in the last 3 months or planned during the study.
  • pregnant or lactating women,
  • concomitant psychiatric disease or any other chronic illness or drug-abuse that could interfere with the ability to comply with the protocol or to give informed consent,
  • positive HIV serology, active hepatitis B or EBV infection,
  • patients under a measure of legal protection

Treatment and study plan

Interleukin 2

Drug

Induction period: repeated administration of low-dose IL-2 (1MUI/day, sc) during 5 consecutive days.Maintenance period: treatment with IL-2, 1MUI once every 15 days (except systemic lupus erythematosus's patients every 7 days) for 6 months

Primary outcomes

  1. Percentages of Tregs

    Time frame: Day8

    Change in Treg percentage (percentages of Tregs within the CD4+ lymphocytes) at Day-8 after administration of low-dose of IL2 compared to baseline (Day0)

Secondary outcomes

  1. Percentages of Tregs

    Time frame: Day 15, 29, 85, 183, 240, 360 and 540

    Changes in Treg percentage at Day 15, 29, 85, 183, 240, 360 and 540 compared to baseline (Day0)

  2. inflammation markers (CRP and CRP ultra sensible)

    Time frame: Day 0, 1, 8, 15, 29, 85, 183, 240, 360 and 540

    Changes in levels of inflammation markers

  3. markers of inflammatory anemia (Hemoglobin, serum iron level, transferrin) ferritin

    Time frame: Day 0, 1, 8, 15, 29, 85, 183, 240, 360 and 540

    Changes in levels of inflammation markers

  4. Number of relapses

    Time frame: up to Day540

  5. CGI-sev, CGI-activity and CGI-eff scales

    Time frame: Day 85, 183, 240, 360 and 540

    Change in the clinical global impression severity and efficacy scale (CGI-sev, CGI-act and CGI-eff scales) at Day 85, 183, 240, 360 and 540 compared to baseline (Day1)

  6. EuroQL-5 scale

    Time frame: Day 183

    Change in the quality of life (EuroQL-5 scale)

  7. Evolution of clinical, biological or radiological criteria specific to each disease

    Time frame: up to Day 540

    Changes in disease-specific score and/or evolution of clinical, biological or radiological criteria specific to each disease

  8. Safety Assessment

    Time frame: up to Day 540

    Safety Assessment all along the observation period (Day-1 to Day-240): Safety assessment will include vital signs, adverse events and concomitant medications collection as well as biology during the 6 months of the treatment period; .In addition, the evolution of the disease will be followed up to 1 year after IL2- treatment stop.

Sponsors and collaborators

Lead sponsor

Assistance Publique - Hôpitaux de Paris

Other

Collaborators

  • Iltoo Pharma

Registry information

Official study title

Induction of Regulatory t Cells by Low Dose IL2 in Autoimmune and Inflammatory Diseases: a Transnosographic Approach

Acronym: TRANSREG

Important dates

Study start
2014
Primary completion
2019
Study completion
2021
First posted
Nov 20, 2013
Registry last updated
Jul 20, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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