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CTLA-4 blockade with ipilimumab induces significant clinical benefit in a female with melanoma metastases to the CNS

Abstract

Background A 63-year-old female presented to her primary physician with numbness and weakness in her left leg, which progressed over several days to involve her entire lower extremities. MRI of the spine and brain revealed multiple metastases. The patient received ipilimumab and after 3 months experienced intermittent confusion and focal seizures.

Investigations Electroencephalogram and MRI scans of the spine and brain, followed by surgical removal of a left frontal cortical brain metastasis and subsequent histological and pathological analyses.

Diagnosis Metastatic melanoma from an unknown primary tumor.

Management The patient was treated with ipilimumab on a compassionate-use program and dexamethasone, celecoxib, and levetiracetam to treat the symptoms and seizures. Postoperative stereotactic radiosurgery was initiated.

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Figure 1: Radiographic changes to melanoma metastases in the brain with administration of CTLA-4 blockade.
Figure 2: MRI scans of the patient's spine 6 months after treatment with dexamethasone.
Figure 3: Pathological examination of resected brain metastasis following ipilimumab treatment.
Figure 4: Pathological assessment of immune effector cells associated with melanoma brain metastases following ipilimumab treatment.

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Acknowledgements

We thank Rebecca Turner for editorial assistance. Charles P Vega, University of California, Irvine, CA, is the author of and is solely responsible for the content of the learning objectives, questions and answers of the Medscape-accredited continuing medical education activity associated with this article.

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Correspondence to F Stephen Hodi.

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FS Hodi is a Consultant and receives grant/research support from Bristol-Myers Squibb. A Hoos is an employee and stock-holder with Bristol-Myers Squibb. The other authors declared no competing interests.

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Hodi, F., Oble, D., Drappatz, J. et al. CTLA-4 blockade with ipilimumab induces significant clinical benefit in a female with melanoma metastases to the CNS. Nat Rev Clin Oncol 5, 557–561 (2008). https://doi.org/10.1038/ncponc1183

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