Clinical Efficacy of Selumetinib in Alleviating Neuropathic Pain Associated with Plexiform Neurofibroma: A Case Series
Abstract
Background: Selumetinib, an MEK inhibitor, was approved by the U.S. Food and Drug Administration in April 2020 and became reimbursable in Italy in January 2020, for treating patients aged ≥3 years with neurofibromatosis type 1 (NF1) complicated by symptomatic, inoperable plexiform neurofibromas (PNs). Selumetinib has been shown to effectively reduce the volume of target PNs and alleviate neuropathic pain even in long-term-treated patients. We report the impact of Selumetinib on pain in three NF1 cases with inoperable symptomatic plexiform neurofibromas. Case Series: Three patients with NF1 (aged 13–27 years) presented with symptomatic, inoperable plexiform neurofibromas (PNs) associated with severe neuropathic pain. Following selumetinib administration, a marked reduction in or disappearance of neuropathic pain was observed within a few weeks, allowing the complete discontinuation of pain therapy. Interestingly, pain recurred whenever selumetinib was temporarily suspended, requiring patients to resume analgesic therapy. Conclusions: Selumetinib treatment has been shown to effectively reduce neuropathic pain in patients with NF1. These findings represent a significant advancement in managing pain related to PNs and support its potential application in treating other forms of neuropathic pain.
How strong is the evidence?
Evidence Hub reads this as a case series, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.
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