Hair Repigmentation Reported With Baricitinib in Canities Subita - Summary - MDSpire
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Hair Repigmentation Reported With Baricitinib in Canities Subita

A single case suggests a possible benefit, but confounding factors and the off-label setting temper the conclusions.

  • By

  • Andrea Surnit

  • June 15, 2026

  • 4 min

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Objective:

To report a case of hair repigmentation and regrowth during baricitinib treatment in a patient with canities subita and concurrent alopecia areata.

Approach:
    Key Findings:
    • Complete hair repopulation occurred along with resolution of the alopecic patch.
    • Hair regrowth was denser and grayer rather than returning to baseline pigmentation.
    • No adverse events were reported, and rheumatoid arthritis remained in remission.
    Interpretation:

    The case supports a potential link between canities subita and alopecia areata, but does not establish baricitinib as an effective treatment for canities subita.

    Limitations:
    • Single-patient case report design without a comparator group.
    • Lack of standardized alopecia severity or pigmentation outcomes.
    • Clinical diagnosis made without histopathologic confirmation.
    • Concurrent withdrawal of etanercept may have confounded results.
    Conclusion:

    The report should not be interpreted as establishing baricitinib as an effective treatment for canities subita, and its use would be off-label.

    Sources:

Original Source(s)

Hair Repigmentation Reported With Baricitinib in Canities Subita

  • by Andrea Surnit

  • June 15, 2026

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