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Sonidegib, a novel smoothened inhibitor for the treatment of advanced basal cell carcinoma.

ABSTRACT: Basal cell carcinoma (BCC) is the most common nonmelanoma skin cancer. If left untreated, BCCs can become locally aggressive or even metastasize. Currently available treatments include local destruction, surgery, and radiation. Systemic options for advanced disease are limited. The Hedgehog (Hh) pathway is aberrantly activated in a majority of BCCs and in other cancers. Hh pathway inhibitors are targeted agents that inhibit the aberrant activation of the Hh pathway, with smoothened being a targeted component. Sonidegib is a novel smoothened inhibitor that was recently approved by the US Food and Drug Administration. This review focuses on BCC pathogenesis and the clinical efficacy of sonidegib for the treatment of advanced BCC.

SUBMITTER: Doan HQ

PROVIDER: S-EPMC5028081 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Sonidegib, a novel smoothened inhibitor for the treatment of advanced basal cell carcinoma.

Doan Hung Q HQ Silapunt Sirunya S Migden Michael R MR

OncoTargets and therapy 20160914

Basal cell carcinoma (BCC) is the most common nonmelanoma skin cancer. If left untreated, BCCs can become locally aggressive or even metastasize. Currently available treatments include local destruction, surgery, and radiation. Systemic options for advanced disease are limited. The Hedgehog (Hh) pathway is aberrantly activated in a majority of BCCs and in other cancers. Hh pathway inhibitors are targeted agents that inhibit the aberrant activation of the Hh pathway, with smoothened being a targe ...[more]

PMID: 27695345

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Project description:IntroductionSonidegib is approved to treat locally advanced basal cell carcinoma (laBCC) in the USA, EU, Switzerland, and Australia and metastatic basal cell carcinoma (mBCC) in Switzerland and Australia in patients not amenable to surgery or radiotherapy. Vismodegib is approved to treat patients with mBCC, recurrent laBCC, or those not candidates for surgery or radiation. There is no head-to-head trial comparing Hedgehog inhibitors. We describe time to onset and severity of adverse events (AEs) in two studies reporting cumulative AE incidence every treatment cycle: the sonidegib phase 2 BOLT study and the expanded-access, open-label vismodegib study.MethodsThis analysis included patients with histologically confirmed laBCC or mBCC from BOLT who received sonidegib 200 mg once daily (QD) and patients from the vismodegib study who received vismodegib 150 mg QD. Cumulative occurrence of AEs and median time to AE onset were calculated on 30-day cycles for sonidegib and 28-day cycles for vismodegib. AEs were graded for severity using the Common Terminology Criteria for Adverse Events. Only common (at least 15% incidence) AEs were analyzed in this study.ResultsOver 18 treatment cycles, the most common all-grade AEs for sonidegib and vismodegib were muscle spasm (54.4% vs 70.6%; P = 0.0236), alopecia (49.4% vs 58.0%; no significant difference [NS]), and dysgeusia (43.0% vs 70.6%; P = 0.0003); incidences of diarrhea, nausea, fatigue, and weight decrease were 31.6% vs 25.2% (NS), 39.2% vs 19.3% (P = 0.0032), 32.9% vs 19.3% (P = 0.0429), and 30.4% vs 16.0% (P = 0.0217), respectively. Sonidegib-treated patients had more delayed median time to onset for all AEs than vismodegib-treated patients, except fatigue and weight decrease (NS). Most AEs reported were grade ≤ 2.ConclusionThis post hoc analysis suggests lower overall incidence and slower onset of certain AEs in patients treated with sonidegib compared with vismodegib. In the absence of head-to-head comparisons, the relevance of these findings needs further studies to provide conclusive evidence.

Dataset Information

Sonidegib, a novel smoothened inhibitor for the treatment of advanced basal cell carcinoma.

Publications

Sonidegib, a novel smoothened inhibitor for the treatment of advanced basal cell carcinoma.

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