Telitacicept Followed With Rituximab Therapy on APS Secondary to SLE
- Conditions
- Antiphospholipid Syndrome
- Interventions
- Registration Number
- NCT05644210
- Lead Sponsor
- Qilu Hospital of Shandong University
- Brief Summary
The aim of this study was to observe the clinical efficacy and safety of rituximab (RTX) combination with telitacicept (TA) in patients of systemic lupus erythematosus secondary antiphospholipid syndrome (APS).
- Detailed Description
In this multicenter, prospective, observational study, 80 patients with SLE Secondary APS patients were enrolled. RTX alone or its continuation with TA was observed for 24weeks，and extended for another 24 weeks. At week 12, the RTX group could be converted to the combination group. The primary end point was the response rate of total antiphospholipid antibody (aPL) at week 12. The secondary end points included the decline rate and value of aPL antibody, aGAPSS score, remission degree of specific clinical indicators, changes in SLE disease activity in SAPS group, and drug safety at week 12 and week 24.
Recruitment & Eligibility
- Status
- RECRUITING
- Sex
- All
- Target Recruitment
- 80
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1.Patients who meet 2006 Sapporo classification criteria of APS or 2020 nonstandard APS performance；
2.Patients who meet 1997 or 2019 SLE classification criteria ;
3.Positive LA /ACL/ aβ2GPI ,on two or more occasions, at least 12 weeks apart;
4.with at least one extra-criteria manifestations of APS, including thrombocytopenia, hemolytic anemia, nephropathy, valve heart disease ,skin ulcer and arterial or deep vein thrombosis;
5.Maintain a stable base treatment regimen for at least 4 weeks before screening; Basic treatment includes anticoagulants/antiplatelet agents, glucocorticoids, and hydroxychloroquine;
6.No response, intolerance or dependence on glucocorticoids and immunosuppressants;
7.Patients who had previously used beliumab or Telitacicept could be enrolled in the study after 12 weeks of discontinuation;
8.Age ≥18 years;
9.Signed Informed consent.
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1.Patients with other causes of thrombocytopenia, hemolytic anemia, valvular heart disease, kidney disease and skin ulcer symptoms were excluded, such as drugs, infections, blood system diseases, genetic metabolic diseases, etc;
2.Severe cardiovascular diseases, kidney, liver and other important organ injuries, serious blood and endocrine system lesions (aplastic anemia, hyperthyroidism crisis, etc.) were excluded; A history of active malignancy (within 5 years) was excluded and chemoradiotherapy was performed; Patients with organ or bone marrow transplantation in the past year were excluded. Exclusion of mentally ill persons;
3.A history of allergy to the relevant test drug;
4.Patients had recently received a live vaccine or planned to use any live vaccine during the study;
5.Ongoing pregnancy;
6.Patients who were participants in clinical trials of other immunosuppressive agents/biologics within 24 weeks;
7.Other conditions that the investigator considers would make the candidate unsuitable for the study;
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description RTX+TA group Telitacicept Screening stage：Patients received 200mg of rituximab intravenously at week 0 and week 2. Follow-up period：Telitacicept 160mg once a week for 24 weeks Basic treatment： Hydroxychloroquine、Prednisone、Warfarin、Aspirin RTX group Prednisone Screening stage：Patients received 200mg of rituximab intravenously at week 0 and week 2. Follow-up period Basic treatment：Hydroxychloroquine、Prednisone、Warfarin、Aspirin RTX group Hydroxychloroquine Screening stage：Patients received 200mg of rituximab intravenously at week 0 and week 2. Follow-up period Basic treatment：Hydroxychloroquine、Prednisone、Warfarin、Aspirin RTX+TA group Rituximab Screening stage：Patients received 200mg of rituximab intravenously at week 0 and week 2. Follow-up period：Telitacicept 160mg once a week for 24 weeks Basic treatment： Hydroxychloroquine、Prednisone、Warfarin、Aspirin RTX+TA group Aspirin Screening stage：Patients received 200mg of rituximab intravenously at week 0 and week 2. Follow-up period：Telitacicept 160mg once a week for 24 weeks Basic treatment： Hydroxychloroquine、Prednisone、Warfarin、Aspirin RTX+TA group Warfarin Screening stage：Patients received 200mg of rituximab intravenously at week 0 and week 2. Follow-up period：Telitacicept 160mg once a week for 24 weeks Basic treatment： Hydroxychloroquine、Prednisone、Warfarin、Aspirin RTX+TA group Hydroxychloroquine Screening stage：Patients received 200mg of rituximab intravenously at week 0 and week 2. Follow-up period：Telitacicept 160mg once a week for 24 weeks Basic treatment： Hydroxychloroquine、Prednisone、Warfarin、Aspirin RTX group Aspirin Screening stage：Patients received 200mg of rituximab intravenously at week 0 and week 2. Follow-up period Basic treatment：Hydroxychloroquine、Prednisone、Warfarin、Aspirin RTX+TA group Prednisone Screening stage：Patients received 200mg of rituximab intravenously at week 0 and week 2. Follow-up period：Telitacicept 160mg once a week for 24 weeks Basic treatment： Hydroxychloroquine、Prednisone、Warfarin、Aspirin RTX group Rituximab Screening stage：Patients received 200mg of rituximab intravenously at week 0 and week 2. Follow-up period Basic treatment：Hydroxychloroquine、Prednisone、Warfarin、Aspirin RTX group Warfarin Screening stage：Patients received 200mg of rituximab intravenously at week 0 and week 2. Follow-up period Basic treatment：Hydroxychloroquine、Prednisone、Warfarin、Aspirin
- Primary Outcome Measures
Name Time Method The proportion of patients who achieved response(complete response and partial response) in aPL profiles Week 12 For the lupus anticoagulant (LAC) test, we defined complete response (CR) as a negative test result and no response(NR) as a positive test result； For the anticardiolipin antibody (aCL)/anti-β2 glycoprotein I (anti-β2GPI)enzyme-linked immunosorbent assay,CR was defined as a titer of\<the 95th percentile, partial response (PR) was defined as a titer of 95th -99th , and NR was defined as a titer of \>the 99th percentile.
- Secondary Outcome Measures
Name Time Method The change of aPL titer week 12 , 24,48 titer change of lupus anticoagulant, anticardiolipin antibody and anti-β2 glycoprotein-I antibody
The change of Damage Index for Antiphospholipid Syndrome (DIAPS) Before the screening and week 12,24,48 The score is obtained by adding the output rating for each domain. The instrument demonstrated content, criterion, and construct validity being a precise tool to quantify organ damage in APS.
The change of Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2k) Score Before the screening,baseline and week 12,24,48 The SLEDAI-2K is an established, validated SLE activity index. It is based on the presence of 24 features in 9 organ systems and measures disease activity in SLE patients in the previous 10 days.
The change of clinical efficacy in subgroups with different symptoms Before the screening,baseline and week 12,24,48 Thrombocytopenia, haemolytic anemia, nephropathy, heart valve lesions, skin changes (livedo reticularis, leg ulcers)
The change of aGAPSS score Before the screening,baseline and week 12,24,48 The aGAPSS was calculated by adding the points corresponding to the risk factors: three for hyperlipidemia, one for arterial hypertension, five for positive anticardiolipin antibodies, four for positive anti-β2 glycoprotein-I antibodies and four for positive lupus anticoagulant test.
The changes of the positive number of 7 aPL indicators week 12, 24,48 Change in the number of antibody positives.
Glucocorticoid (GC) dose and reduction rate Before the screening,baseline and week 4,12,24,48 The proportion of patients who received the GC dose at each time point
The proportion of patients who achieved response(complete response and partial response) in aPL profiles Week 24,48 For the lupus anticoagulant (LAC) test, we defined complete response (CR) as a negative test result and no response(NR) as a positive test result； For the anticardiolipin antibody (aCL)/anti-β2 glycoprotein I (anti-β2GPI)enzyme-linked immunosorbent assay,CR was defined as a titer of\<the 95th percentile, partial response (PR) was defined as a titer of 95th -99th , and NR was defined as a titer of \>the 99th percentile.
The change of Physician Global Assessment (PGA) score . Before the screening,baseline and week 12,24,48 PGA is a physician-reported visual analogue scale that provides an overall meas- ure of the subject's current disease activity,the PGA is a visual analog scale scored from 0 to 3. A score of 1 corresponds to mild lupus disease activity. A score of 2 correlates with moderate disease activity and a score of 3 with severe disease activity;
The percentage of patients with Lupus Low Disease Activity State (LLDAS) Before the screening,baseline and week 12,24,48 LLDAS is defined as: (1) SLE Disease Activity Index (SLEDAI)-2K ≤4, with no activity in major organ systems (renal, central nervous system (CNS), cardiopulmonary, vasculitis, fever) and no haemolytic anaemia or gastrointestinal activity; (2) no new lupus disease activity compared with the previous assessment; (3) a Safety of Estrogens in Lupus Erythematosus National Assessment (SELENA)-SLEDAI physician global assessment (scale 0-3) ≤1; (4) a current prednisolone (or equivalent) dose ≤7.5 mg daily; and (5) well tolerated standard maintenance doses of immunosuppressive drugs and approved biological agents.
Trial Locations
- Locations (1)
Qilu Hospital
🇨🇳Jinan, Shandong, China