Low-dose IL-2( Interleukin-2) Treatment in SLE

Peking University

Status

Completed

Conditions

Systemic Lupus Erythematosus

Treatments

Drug: Interleukin-2

Study type

Interventional

Funder types

Other

Identifiers

NCT02084238

2014-03

Details and patient eligibility

About

This clinical study will test the efficacy and safety of low dose IL-2 treatment in Systemic lupus erythematosus.

Full description

Systemic lupus erythematosus (SLE) is a chronic autoimmune syndrome affecting various organs. While available therapies, such as corticosteroids and immunosuppressive agents have improved the outcome of patients, there remains a significant unmet need for safe and more effective treatments. Dysfunction of regulatory T (Treg) cells has been detected in diverse autoimmune diseases, which can be promoted by interleukin-2 (IL-2). We hypothesized that low-dose IL-2 could be a novel therapy in active SLE patients.

This is a single center, uncontrolled, open-label study to assess the efficacy/safety of low dose IL-2 plus standard therapy in active SLE.

Methods: Each SLE patients (n=40) with Scores>=8 on the Safety of Estrogens in Lupus Erythematosus National Assessment (AELENA) version of the SLE Disease Activity Index (SLEDAI) that was refractory or relaps to glucocorticoid therapy received low-dose IL-2 (1 million units every other day subcutaneously (HrIL-2 1X 106, ip, Qod) for a period of 14 days. After a 14-day rest, another cycle started) for 3-6 cycles according to the situation of the disease. The end points were safety and clinical and immunologic response.

Expected Results: This trail will define low-dose IL-2 plus standard therapy is efficacy and safety with active lupus patients, which could be relevant to the amelioration the abnormity of T help cells in SLE patients.

Enrollment

40 patients

Sex

All

Ages

18 to 65 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Meet the American College of Rheumatology criteria for the diagnosis of SLE.
Under standard treatment (≥ 2 months) at the time of inclusion
Background treatment failed to control flares or to permit prednisone tapering
With at least one of the following manifestations: thrombocytopenia, disease-associated rash, mouth ulcer, non-infectious type of fever, active vasculitis, renal disorder(proteinuria>0.5g/day), neuropsychiatric SLE.
Positive for at least one of the following laboratory tests: ANA>1:160, anti-dsDNA, immunoglobulin>20g/L, decreased C3 or C4, leukopenia<3×10^9/L, thrombocytopenia<100×10^9/L;
SLE disease activity index(SLEDAI) ≥ 8.
Negative HIV test.
Negative for hepatitis B and C virus.
Written informed consent form.

Exclusion criteria

Sever chronic liver, kidney, lung or heart dysfunction; (heart failure (≥ grade III NYHA), hepatic insufficiency (transaminases> 3N) )
Serious infection such as bacteremia, sepsis;
Cancer or history of cancer cured for less than five years (except in situ carcinoma of the cervix or Basocellular carcinoma);
High-dose steroid pulse therapy (>1.5mg/kg) or IV bolus of corticosteroids in the last 2 months.
History of administration of rituximab or other biologics;
Purified protein derivative (tuberculin) >10mm
Mental disorder or any other chronic illness or drug-abuse that could interfere with the ability to comply with the protocol or to give information;
Inability to comply with IL-2 treatment regimen.