Trial of Rituximab for Graves' Ophthalmopathy
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Purpose
This study is being done to investigate the effects (good and bad) of Rituximab for the treatment of an autoimmune eye disease called Graves' ophthalmopathy. This disease has proven to be difficult to treat. Rituximab is a monoclonal antibody that depletes a line of cells (B lymphocytes CD20 positive) involved in the autoimmune response. The study hypotheses is that rituximab is effective in the treatment of patients with moderate to severe active Graves' ophthalmopathy.
| Condition | Intervention | Phase |
|---|---|---|
|
Thyroid-associated Ophthalmopathy |
Drug: Rituximab Drug: IV saline |
Phase 2 Phase 3 |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Endpoint Classification: Efficacy Study Intervention Model: Parallel Assignment Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor) Primary Purpose: Treatment |
| Official Title: | Phase 2/3 Study of Rituximab for Graves' Ophthalmopathy |
- Improvement in Clinical Activity Score by 2 or more points [ Time Frame: 2,4,6 and 12 months after the first infusion ] [ Designated as safety issue: No ]
- Decrease in disease severity [ Time Frame: 2,4,6 and 12 months after first infusion ] [ Designated as safety issue: No ]
- Decrease in proptosis by ≥2 mm [ Time Frame: 2,4,6 and 12 months after first infusion ] [ Designated as safety issue: No ]
- Decrease in lid aperture width by ≥3 mm [ Time Frame: 2,4,6 and 12 months after first infusion ] [ Designated as safety issue: No ]
- Improvement in extraocular motility by ≥8 degrees [ Time Frame: 2,4,6 and 12 months after first infusion ] [ Designated as safety issue: No ]
- Improvement in a GO-specific quality of life score of ≥ 6 points [ Time Frame: 2,4,6 and 12 months after first infusion ] [ Designated as safety issue: No ]
- Failure rate, defined as need for additional therapy (excluding cosmetic surgery) for the eye disease [ Time Frame: 52 weeks ] [ Designated as safety issue: No ]
- Composite of decrease of CAS ≥ 2 points and no need for additional therapy for the eye disease versus either CAS decrease of < 2 points or need for additional therapy [ Time Frame: 52 weeks ] [ Designated as safety issue: No ]
| Estimated Enrollment: | 30 |
| Study Start Date: | April 2008 |
| Estimated Study Completion Date: | September 2013 |
| Estimated Primary Completion Date: | September 2013 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Experimental: Rituximab
Rituximab 1000 mg IV twice at 2-week intervals
|
Drug: Rituximab
15 patients will receive 2 infusions of rituximab (1000 mg IV), two weeks apart
Other Names:
|
|
Placebo Comparator: Saline
Saline IV twice at 2-week intervals
|
Drug: IV saline
15 patients will receive 2 infusions if saline IV, 2 weeks apart
|
Detailed Description:
Detailed Description: Before any treatment is given, careful eye and thyroid physical examinations will be performed and the patients will have several thyroid blood tests, a test to count the white cells in the blood, and a CT scan of the head and eyes. A close-up photograph of the face will be taken and patients will be given a short questionnaire about how their eyes are feeling and how the eye disease is affecting their quality of life. Each study subject will receive either 2 infusions of rituximab (each 1000 mg; given 2 weeks apart) or 2 intravenous infusions of saline. Patients will return to Rochester 2 weeks after the first intravenous infusion in order to receive the second infusion. They will then return to Rochester four more times; 2 months apart for the first 3 return visits (weeks 8, 16 and 24 following the first infusion) and 6 months later (approximately 52 weeks following the first infusion) for the final visit to have the same blood tests performed. The CT scan will be repeated at 52 weeks. Patients will be assigned to one of these two groups in a random manner (like flipping a coin) and neither they nor the physicians will know until the study is completed whether they received saline or the study drug. Travel and lodging costs for the 4 return visits up to $2,750 with receipts will be reimbursed and all study-related medical costs following enrollment will be covered.Remuneration of $250.00 will be offered at the end of the study.
Eligibility| Ages Eligible for Study: | 18 Years to 75 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- patients with clinical activity score (CAS) of ≥4 and moderate to severe disease severity, as defined by NOSPECS score
- euthyroid for at least 6-8 weeks
- no immediate need for decompression surgery
Exclusion Criteria:
- corticosteroid use in the preceding 4 weeks
- HIV, hepatitis C or hepatitis B infections
- denied consent for HIV or hepatitis testing
- mild or inactive Graves' ophthalmopathy
- orbital radiotherapy within 18 months or orbital surgery within the past year
- absolute neutrophil count < 1,500/mm3
- pregnant or nursing patients
- coronary artery disease, congestive heart failure, significant arrhythmias, significant infection or immunodeficiency, other serious illnesses
Contacts and Locations
More Information
No publications provided
| Responsible Party: | Rebecca Bahn, Professor of Medicine, Consultant in Endocrinology, Mayo Clinic, Mayo Clinic |
| ClinicalTrials.gov Identifier: | NCT00595335 History of Changes |
| Other Study ID Numbers: | 06-006130, R01DK077814, NIH RO1DK077814-01 |
| Study First Received: | January 1, 2008 |
| Last Updated: | May 9, 2013 |
| Health Authority: | United States: Food and Drug Administration |
Keywords provided by Mayo Clinic:
|
Thyroid-associated ophthalmopathy Rituximab Proptosis |
Additional relevant MeSH terms:
|
Eye Diseases Thyroid Diseases Graves Ophthalmopathy Endocrine System Diseases Eye Diseases, Hereditary Graves Disease Exophthalmos Orbital Diseases Goiter Hyperthyroidism |
Autoimmune Diseases Immune System Diseases Rituximab Immunologic Factors Physiological Effects of Drugs Pharmacologic Actions Antirheumatic Agents Therapeutic Uses Antineoplastic Agents |
ClinicalTrials.gov processed this record on May 23, 2013