Vemurafenib, Dabrafenib Linked to Cutaneous Side Effects

Squamous cell carcinoma, warty dyskeratomas, verrucous keratoses, and other lesions can occur

THURSDAY, May 24 (HealthDay News) -- The selective small molecule inhibitors of BRAF, vemurafenib and dabrafenib, are associated with diverse cutaneous side effects, including both malignant and benign growths, when used to treat patients with melanoma with the BRAF V600E mutation, according to research published online May 21 in the Journal of the American Academy of Dermatology.

Emily Y. Chu, M.D., Ph.D., of the Hospital of the University of Pennsylvania in Philadelphia, and colleagues evaluated the cutaneous adverse effects of vemurafenib and dabrafenib in 13 patients being treated for metastatic melanoma and one patient being treated for metastatic thyroid cancer.

The researchers found that, at an average of 12.6 weeks following initiation of treatment, but as early as one week, patients began displaying skin side effects. All 14 patients displayed at least one skin side effect, and 13 of the 14 patients displayed at least two different types of skin reactions. Eight patients developed one or more keratoacanthoma-like squamous cell carcinomas; 11 developed benign verrucous keratosis; eight developed single or multiple acantholytic dyskeratosis lesions consistent with warty dyskeratomas and Darier- or Grover-like rashes, respectively; and one patient developed palmoplantar hyperkeratosis.

"In summary, we have described several cutaneous side effects associated with selective BRAF inhibitor therapy for metastatic melanoma and thyroid cancer, many of which may be attributed to paradoxical activation the MAPK signaling pathway in nontumor cells," the authors write. "Awareness on the part of dermatologists and oncologists of the potential side effects of selective BRAF inhibitors will become increasingly important as these agents are used more widely."

Several authors disclosed financial ties to Roche, Genentech, and GlaxoSmithKline.

Full Text (subscription or payment may be required)

Copyright © 2012 HealthDay. All rights reserved.

Powered by

jQuery UI Accordion - Default functionality

For life-long learning and continuing professional development, come to Lippincott's NursingCenter.

Nursing Jobs Plus
Featured Jobs
Recommended CE Articles

Blunt Chest Trauma
Journal of Trauma Nursing, November/December 2014
Expires: 12/31/2016 CE:2 $21.95

The School Age Child with Congenital Heart Disease
MCN, The American Journal of Maternal/Child Nursing, January/February 2015
Expires: 2/28/2017 CE:2.5 $24.95

Understanding multiple myeloma
Nursing Made Incredibly Easy!, January/February 2015
Expires: 2/28/2017 CE:2 $21.95

More CE Articles

Subscribe to Recommended CE

Recommended Nursing Articles

Comprehensive Care: Looking Beyond the Presenting Problem
Journal of Christian Nursing, January/March 2015
Free access will expire on March 2, 2015.

Pain and Alzheimer dementia: A largely unrecognized problem
Nursing Made Incredibly Easy!, January/February 2015
Free access will expire on February 16, 2015.

Glycemic control in hospitalized patients
Nursing2015 Critical Care, January 2015
Free access will expire on February 16, 2015.

More Recommended Articles

Subscribe to Recommended Articles

Evidence Based Practice Skin Care Network NursingCenter Quick Links What’s Trending Events