A Pilot Study of Rituximab for the Anticoagulation Resistant Manifestations of Antiphospholipid Syndrome (RITAPS)
A Pilot Study of Rituximab for the Anticoagulation Resistant Manifestations of Antiphospholipid Syndrome (RITAPS)
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Persistently antiphospholipid antibody (aPL)-positive patients, age 18 - 75 years of age, with anticoagulation-resistant manifestations of APS and fulfilling protocol defined study inclusion criteria will receive two doses of Rituximab, and will be followed for 6 and 12 months for clinical and safety outcomes, respectively.
Patients are eligible to take part in this study if their blood test is persistently positive for aPL and they have one or more of the aPL-related clinical problem(s) listed below: low platelet (blood cells involved in the prevention of bleeding) count; anemia (deficiency of red blood cells); heart valve disease; skin ulcers; kidney smal vessel blood clots; and/or memory problems.
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
New York
-
New York, New York, United States, 10021
- Barbara Volcker Center for Women and Rheumatic Disease, Hospital for Special Surgery
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Positive aPL profile defined as:
- Positive lupus anticoagulant test as defined by the International Society on Thrombosis and Haemostasis, on two or more occasions, at least 12 weeks apart and/or
- Positive anticardiolipin antibody (aCL) immunoglobulin G(Ig)G/M/A isotype, present in > 40U, on two or more occasions, at least 12 weeks apart and/or
- Positive anti-β2-glycoprotein-I (aβ2GPI) IgG/M/A isotype, present in > 40U, on two or more occasions, at least 12 weeks apart
AND
- Clinical features attributable to aPL that are resistant to warfarin and/or heparin:
- Persistent thrombocytopenia and/or
- Persistent autoimmune hemolytic anemia and/or
- Cardiac valve disease and/or
- Chronic skin ulcers and/or
- Renal thrombotic microangiopathy and/or
- Cognitive dysfunction with/without white matter changes
Exclusion Criteria (selected):
- > 4/11 American College of Rheumatology Classification Criteria for SLE
- Acute thrombosis
- History of stroke (only for patients with cognitive dysfunction)
- Positive Hepatitis B or C serology
- History of positive HIV
- Acute or chronic pancreatitis
- Treatment with any investigational agent within 4 weeks of screening
- Receipt of a live vaccine within 4 weeks prior to randomization
- Previous Treatment with Rituximab (MabThera® / Rituxan®)
- Previous treatment with Natalizumab (Tysabri®)
- Known active bacterial, viral fungal mycobacterial, or other infection
- Pregnancy
- Concomitant malignancies or previous malignancies, with the exception of adequately treated basal or squamous cell carcinoma of the skin or carcinoma in situ of the cervix
- History of psychiatric disorder that would interfere with normal participation in this protocol
- Significant cardiac or pulmonary disease
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Rituximab
All patients will receive 1000 milligrams of rituximab by intravenous infusion on Days 1 and 15.
|
Rituximab 1000mg IV on Days 0 and 15
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Number of Participants Experiencing Serious and Non Serious Adverse Events
Time Frame: 52 weeks + additional 4 months if needed
|
Serious and non-serious adverse events were evaluated throughout 52 weeks + additional 4 months for the patients with low B cell counts.
|
52 weeks + additional 4 months if needed
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
The Efficacy of Rituximab
Time Frame: 24 weeks
|
Outcome measures scored as complete response(CR),partial(PR),and none(NR) at 24 weeks.For thrombocytopenia,CR defined as a platelet count of ≥150×109/μl,PR as 100-149,and NR as <100.For CVD,CR defined as the disappearance of cardiac lesions,PR as 50%improvement,and NR as no change.For skin ulcer,CR defined as disappearance,PR as 50% improvement,and NR as no change.For aPL nephropathy,CR defined as a normal serum creatinine level,inactive urinary sediment,and urinary protein:creatinine 0.5;PR as a serum cr level 15%above baseline,RBCs per high-power field 50%above baseline with no casts,50%improvement in the urinary prt:cr,and estimated GFR 10%above baseline;and NR as the absence of C/PR.For cognitive dysfunction,CR defined as normalization of the cognitive impairment index with 50%improvement,PR as abnormal index with 50%,and NR as no change.
|
24 weeks
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Principal Investigator: Doruk Erkan, MD, Hospital for Special Surgery, New York
Publications and helpful links
General Publications
- Erkan D, Vega J, Ramon G, Kozora E, Lockshin MD. A pilot open-label phase II trial of rituximab for non-criteria manifestations of antiphospholipid syndrome. Arthritis Rheum. 2013 Feb;65(2):464-71. doi: 10.1002/art.37759.
- Khattri S, Zandman-Goddard G, Peeva E. B-cell directed therapies in antiphospholipid antibody syndrome--new directions based on murine and human data. Autoimmun Rev. 2012 Aug;11(10):717-22. doi: 10.1016/j.autrev.2011.12.011. Epub 2012 Jan 16.
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- IRB 27022
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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