ArticleClinical drug investigation2026
Effectiveness of Baricitinib on Nail Alopecia Areata: A 48-Week Single-Center Retrospective Study.
Article in Clinical drug investigation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
- Dermatologic Toxicities Induced by JAK Inhibitors.American journal of clinical dermatology · 2026Review
- JAK Inhibitors for Alopecia Areata: Approved Therapies, Efficacy, and Unanswered Questions.Drug design, development and therapy · 2026Review
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAlopecia areata (AA) is a chronic autoimmune disorder characterized by non-scarring hair loss, which may extend to total scalp (AA totalis) or whole-body hair loss (AA universalis). Nail involvement, though often underestimated, occurs in up to 66% of cases, especially in severe forms and in children.
objectiveThis retrospective study evaluated the efficacy of baricitinib 4 mg/day, a Janus kinase 1/2 inhibitor, in treating nail manifestations associated with severe AA.
methodsThirty-seven patients with very severe AA (Severity of Alopecia Tool [SALT] score > 50) and nail involvement were treated with baricitinib for 48 weeks. Nail changes assessed included trachyonichia, pitting, leukonychia, and others. Clinical assessments were performed at baseline and at 12, 24, 36, and 48 weeks using the SALT score, onychoscopy, and the Clinician Reported Outcome (ClinRO) for nail appearance.
resultsA significant improvement in both hair regrowth and nail abnormalities has been shown. The mean SALT score decreased from 100 to 16.3, and the average number of affected nails reduced from 6.4 to 2.1 (p < 0.001). ClinRO scores also significantly improved (p < 0.001). However, the correlation between hair and nail improvement was weak and not statistically significant (r = 0.15, p = 0.6). This suggests differential responsiveness of hair and nail units.
conclusionsThe findings support baricitinib as a promising treatment for nail involvement in AA, highlighting the need for routine nail assessment and development of more refined evaluation tools. Limitations include small sample size and lack of long-term data.
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