Cytotoxic T-lymphocyte-associated antigen-4 blockage can induce autoimmune hypophysitis in patients with metastatic melanoma and renal cancer - PubMed (original) (raw)

Clinical Trial

. 2005 Nov-Dec;28(6):593-8.

doi: 10.1097/01.cji.0000178913.41256.06.

Kimberly E Beck, Khoi Tran, James C Yang, Marybeth S Hughes, Udai S Kammula, Richard E Royal, Suzanne L Topalian, Leah R Haworth, Catherine Levy, Steven A Rosenberg, Richard M Sherry

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Clinical Trial

Cytotoxic T-lymphocyte-associated antigen-4 blockage can induce autoimmune hypophysitis in patients with metastatic melanoma and renal cancer

Joseph A Blansfield et al. J Immunother. 2005 Nov-Dec.

Abstract

Cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) is an immunoregulatory molecule expressed by activated T cells and resting CD4CD25 T cells. In patients with advanced melanoma, our group reported that administration of anti-CTLA-4 antibody mediated objective cancer regression in 13% of patients. This study also established that the blockade of CTLA-4 was associated with grade III/IV autoimmune manifestations that included dermatitis, enterocolitis, hepatitis, uveitis, and a single case of hypophysitis. Since this initial report, 7 additional patients with anti-CTLA-4 antibody-induced autoimmune hypophysitis have been accumulated. The characteristics, clinical course, laboratory values, radiographic findings, and treatment of these 8 patients are the focus of this report.

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Figures

FIGURE 1

FIGURE 1

Sagittal MRI section from patient 7 before anti-CTLA-4 antibody treatment and at various intervals during treatment, including the time of clinical symptom onset. Pituitary height is in parentheses.

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