MINNEAPOLIS, MINN. – For a select subset of pediatric dermatology patients, home phototherapy may represent a safe, effective, and even affordable alternative to office visits. Some families whose children are in treatment for vitiligo, psoriasis, and atopic dermatitis may find that the expense and learning curve of administering treatment at home are worthwhile, but dermatologists must select those families carefully.

Leslie Castelo-Soccio, MD, PhD, professor of pediatric dermatology at the Children’s Hospital of Philadelphia, gave an overview of medical phototherapy for childhood skin diseases at the annual meeting of the Society for Pediatric Dermatology.

For vitiligo, narrow-band UVB’s (NBUVB) effectiveness is maximized if treatment is begun relatively early, and if results are going to happen, they’ll show up fairly quickly. “If there’s no response after six months, stop the therapy,” Dr. Castelo-Soccio said.

Although the literature shows NBUVB to be effective in treating atopic dermatitis, Dr. Castelo-Soccio noted that most pediatric atopic dermatitis studies have been small and retrospective and conducted in a population with severe disease.

Regarding psoriasis in children, the literature shows “higher numbers of patients with near-complete or complete response,” she said.

The experience of NBUVB for pediatric dermatologic conditions at the Children’s Hospital of Philadelphia supports the idea that “the best responses are seen after at least 40 treatments,” and that 6 months is enough time to see whether a patient will respond. The best responders at her institution are children with facial vitiligo. “Of course, you get a better response with compliance,” she noted.

The experience of her patients falls in line with the data about side effects, in which the most common adverse events are reactivation of HSV and burning.

Families ask about cancer risk, but “there are no published data on the risk of skin cancer in long-term phototherapy in children,” she said. At this point, the best pediatric dermatologists can do is to extrapolate risk from data on phototherapy for neonatal jaundice, but even those data are inconclusive, she said.

Dr. Castelo-Soccio noted that it’s pretty common for families to request home treatment: “When you start talking to patients about phototherapy, the thing I always get questions about is, ‘Why can’t I do it at home?’ ” She prefers to initiate treatment in the clinic and then assess suitability for home therapy after a relationship has been established.

The ideal patient, said Dr. Castelo-Soccio, is one whose family has been diligent about coming to appointments and who otherwise demonstrates excellent compliance.

At first blush, the cost of acquiring a home device – often in the $2,000 range – might seem prohibitive for many families. The upfront cost may be worth it for some, since office visits involve copayments and lost time from school and work for multiple treatments weekly over a period of months. A big commute to the doctor’s office for treatment may further tip the scales toward home treatment. “I wouldn’t hesitate to offer this option to the right family,” she said.

Dr. Castelo-Soccio said she’s had some limited success getting insurance reimbursement for home phototherapy, especially if success has already been seen with office-based treatment.

NBUVB therapy has limitations, though. Some that have particular relevance for the pediatric population involve the challenges of safe delivery, including using appropriate eye wear and ensuring lack of movement. Each of these problems can be even more of a challenge at home, reinforcing the need to select appropriate patients for home phototherapy, she added.

Dr. Castelo-Soccio said she provides information about all of the various phototherapy devices to her patients and their parents, letting them make the choice. “All of the companies are really good about helping with paperwork” to apply for insurance reimbursement, she said. Options range from the bulkiest and most expensive – a full phototherapy box – to three-panel arrays, single panels, hand-foot devices, and even hand-held devices. The latter can be had for less than $1,000 and may be best suited for targeting smaller areas.

Features to look for in home phototherapy devices include a dosimeter accuracy sensor, which adjusts the treatment time to deliver the same dose, even if dust or aging lamps reduce output. User-friendly timers also are helpful for families, said Dr. Castelo-Soccio. A safety lock-out will allow only a certain number of treatments before the unit must be reset by the physician and is a reassuring feature. Each activation counts as a treatment, however, so families and physicians must be aware that if a hand-held unit is used to treat multiple small lesions in different body areas, a single treatment session will involve many device activations, each of which will be registered as a treatment.

Dr. Castelo-Soccio had no relevant financial disclosures.

koakes@frontlinemedcom.com

On Twitter @karioakes

Consider home phototherapy for some pediatric patients