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

• Status: Completed
• Trial end date: 2021-04-01
• Target enrollment: 0
• Participant gender: All

Summary

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.

• Phase: Phase 2
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Assistance Publique - Hôpitaux de Paris
• Collaborator: Iltoo Pharma
• Treatments: Interleukin-2

Criteria

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