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Topical ruxolitinib provides repigmentation in facial vitiligo

Stephen Padilla
17 May 2017
Winnie Harlow, a top model, suffers from Vitiligo. PC: The Odyssey

The use of topical ruxolitinib 1.5% cream, a Janus kinase (JAK) inhibitor, delivers significant repigmentation in facial vitiligo, promising a new treatment for the said skin disease, reports a recent study.

“Significant vitiligo repigmentation was observed on the face,” researchers said. “Few patients had acral or extremity improvement, and the repigmentation that did occur in these areas was clinically and statistically nonsignificant.”

The authors conducted a 20-week, open-label, proof-of-concept trial of twice-daily topical ruxolitinib 1.5% cream in 12 patients with a minimum of 1-percent affected body surface area of vitiligo. The primary outcome was percent improvement in Vitiligo Area Scoring Index from baseline to week 20.

Of the 12 patients screened, 11 were enrolled and nine completed the study (mean age 52 years; 54.5 percent men).

At week 20, four patients with significant facial involvement at baseline showed a 76-percent improvement in facial Vitiligo Area Scoring Index scores (95 percent CI, 53 to 99 percent; p=0.001). Moreover, all enrolled patients had a 23-percent improvement in overall Vitiligo Area Scoring Index scores at week 20 (4 to 43 percent; p=0.02). [J Am Acad Dermatol 2017;76:1054–1060.e1]

“Twice-daily application of topical ruxolitinib 1.5% cream produced significant improvement in facial vitiligo in this small cohort of patients,” researchers said. “However, the encouraging results in facial lesions should prompt further investigation into the role of JAK inhibitors for the treatment of vitiligo.”

Three of eight patients responded on body surfaces and one responded on acral surfaces. There were minor adverse events, including erythema, hyperpigmentation and transient acne.

“Because laboratory monitoring was not performed in our patients, we cannot comment on potential laboratory-adverse events, but it was assumed these were not likely to occur with topical application,” according to researchers.

This study is the first to evaluate a topical JAK inhibitor in a series of patients with vitiligo, researchers claimed. One previous case report documented clinical success with topical ruxolitinib for the treatment of scalp and eyebrow alopaecia areata, which is another T-helper 1‒mediated disease. [JAMA Dermatol 2016;152:490–491]

Limitations of the current study included the small sample size and the open-label study design. In addition, natural sun exposure was not monitored in the participants, which could have contributed indirectly to vitiligo improvement.

“Future studies should be aimed at conducting large-scale, randomized, controlled trials to better understand the efficacy and adverse events of topical JAK inhibitors in vitiligo and other T-helper 1–mediated diseases, along with testing higher concentrations of ruxolitinib and its safety in combination with other treatment modalities such as phototherapy,” researchers said.

An autoimmune disorder, vitiligo involves an acquired loss of functioning melanocytes that results in depigmented patches of skin. The often visible, disfiguring lesions of this skin condition may affect patients’ quality of life, researchers explained.

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Most Read Articles
Rachel Soon, 2 days ago

On 8 August, the first town hall held by the Ministry of Health (MOH) with members of the pharmacy profession took place in Putrajaya. Over 500 pharmacists from across the country and from different areas of practice—community and hospital, public and private, academy and industry—converged to fill the auditorium for the chance to engage in direct dialogue with MOH.

Jackey Suen, 08 Oct 2018

Adding pertuzumab to trastuzumab plus an aromatase inhibitor (AI) improves progression-free survival (PFS) in patients with HER2-positive metastatic or locally advanced breast cancer, the phase II PERTAIN study has shown.

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