In clinical trial, cream reduces squamous cell carcinoma risk

ScienceDaily | 1/3/2018 | Staff
xxlauzyxx (Posted by) Level 3
The finding that less than one month's use of fluorouacil 5% (5-FU) appeared to prevent cancer for up to a year is encouraging, said lead author Dr. Martin A. Weinstock, a professor of dermatology in the Warren Alpert Medical School of Brown University and chief of dermatology at the Providence Veterans Affairs Medical Center.

The dose is the same as dermatologists currently employ to treat actinic keratosis. In a 2015 study, Weinstock and co-authors showed the up to four-week regimen of 5-FU had a multi-year preventive benefit in reducing the number of actinic keratosis (AK) and the need for treatment. Earlier this year, they also showed that the medicine prevents new AKs from emerging for two to three years.

Means - Carcinomas - Patients - Medications - Cease

Meanwhile, current means for preventing new carcinomas in high-risk patients -- sunscreen or oral medications -- cease to work as soon as they are no longer used. But in the new study, 5-FU appeared to provide prolonged protection after discontinuation and could be combined with sunscreen, Weinstock said.

In the absence of such a long-lasting prevention option, he said, the typical approach to caring for patients with a history of prior carcinomas is to monitor for the next cancer and then remove it surgically -- an effective but imposing strategy often called "wait and cut."

People - Cut - Face - Lot - Weinstock

"People don't appreciate having stuff cut on their face a lot," said Weinstock, who led the trial funded by the U.S. Department of Veterans Affairs and conducted at a dozen V.A. hospitals around the country. "They do it if there is a cancer there, but we want to take a proactive approach where we can give them something to reduce their risk of getting new cancers."

The new results are published in JAMA Dermatology.

Veterans - Affairs - Keratinocyte - Carcinoma - Chemoprevention

Between 2009 and 2013, the Veterans Affairs Keratinocyte Carcinoma Chemoprevention Trial randomly assigned 932 veterans who each had...
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