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Patients with ulcerative colitis (UC), a chronic inflammatory bowel disease (IBD), have been shown to be at increased risk of developing certain infections, such as shingles from the Herpes Zoster (HZ) virus, as a result of their underlying disease. Patients with UC are also often treated with immunosuppressants, and research has shown that IBD patients on immunosuppressants have an impaired immune response to vaccination in comparison to immunocompetent controls. Because UC patients are often treated with immunosuppressants, the live HZ vaccine was not recommended in these patients. Shingrix, however, is a new inactivated vaccine recently approved by the FDA for prevention of HZ in adults age 50 and older, and Shingrix should be safe to administer in IBD patients because it does not contain live HZ virus. Data on efficacy of the Shingrix vaccine also appears promising in immunocompromised patients.
Tofacitinib citrate (Xeljanz), an immunosuppressant that works by inhibiting the Janus kinase pathway, is currently approved for treatment of certain inflammatory diseases such as rheumatoid arthritis and psoriasis. The drug is currently awaiting FDA-approval for use in moderate-to-severe UC but has been used off-label in various settings. Notably, tofacitinib was associated with an increased risk of HZ in patients with rheumatoid arthritis and psoriasis.
The research hypothesis is that UC patients on tofacitinib will mount an adequate response and that the response will be slightly diminished compared to non-immunosuppressed IBD patients, comparable to those on anti-tumor necrosis alpha (anti-TNF) monotherapy, and superior to those on anti-TNF therapy in combination with a thiopurine. Strong cell mediated immunity is shown to prevent reactivation of HZ, and demonstrating a robust immune response to Shingrix may serve as a surrogate for a reduced risk of developing shingles and might alleviate prescribers' concerns regarding the use of tofacitinib. The results will also serve as pilot data to inform larger future studies evaluating the actual risk of developing shingles in patients on tofacitinib who receive Shingrix.
Full description
The purpose of this study is to determine the immune response from the new Shingrix vaccine in UC patients on tofacitinib monotherapy in comparison to other UC therapies. the investigators plan to determine this by vaccinating IBD patients on (a) tofacitinib monotherapy, (b) anti-TNF monotherapy, (c) anti-TNF combination therapy with a thiopurine, or (d) aminosalicylates or other non-immunosuppressive therapy with the new Shingrix vaccine and measuring markers of cell-mediated immunity before vaccination and at one and six months after the last vaccine dose. Cell-mediated immunity will be measured with an interferon gamma (IFNγ) enzyme linked immunospot (ELISPOT) test to assess T-cell response. Humoral immunity will also be measured with an enzyme-linked immunosorbent assay (ELISA) kit to quantify antibody concentrations of Varicella Zoster Virus (VZV), the pathogen that when reactivated results in shingles.
The study population will include adult patients aged 50 or older with UC (diagnosed by standard clinical, radiographic, endoscopic, and histopathologic criteria) receiving care at Boston Medical Center, Hospital of the University of Pennsylvania, or University of Wisconsin Hospital and Clinics. There is no randomization or use of placebo in this study. Four study groups (each containing 25 subjects) will be established -- 1. Group A - UC patients on tofacitinib monotherapy. 2. Group B - UC patients receiving anti-TNF monotherapy (adalimumab, golimumab, infliximab). 3. Group C - UC patients on an anti-TNF agent and a thiopurine (6-mercaptopurine, azathioprine). Group D - UC patients on non-immunosuppressive therapy or 5-aminosalicylates. For each subject, 3 total samples will be collected.
Methods: Eligible patients with UC will be recruited from the Center for Digestive Diseases at Boston Medical Center, the Hospital of the University of Pennsylvania, or the University of Wisconsin Hospital and Clinics. Patients will be screened for participation in the study and recruited by their primary gastroenterologist. In clinic, a handout of the risks and benefits of the clinically indicated vaccine (Shingrix) will be given to each patient from their primary gastroenterologist for their review. Patients will have the opportunity to opt in or out of the study early in the consent process upon review of the handout. If a patient elects to participate in the study, patients will sign the consent, be entered into the study with assignment of a Subject ID number, and complete the initial study assessments:
Subject contacts:
The entire procedure will be identically performed at the additional sites outside of Boston Medical Center. Subjects' duration of participation will range from 8 to 12 months, depending on when the 2nd vaccine dose is administered.
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Inclusion criteria
Group A: Tofacitinib monotherapy, Group B: Anti-TNF monotherapy (adalimumab, golimumab, certolizumab pegol, infliximab), Group C: Anti-TNF combination therapy with a thiopurine (6 mercaptopurine, azathioprine), Group D: 5-aminosalicylates or other non-immunomodulatory therapy.
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15 participants in 4 patient groups
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Central trial contact
Sharmeel K Wasan, MD; Jean Mendez
Data sourced from clinicaltrials.gov
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