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A study to find allergens and sunlight triggers in patients with Lichen Planus Pigmentosus.

PATCH AND PHOTOPATCH TESTING IN LICHEN PLANUS PIGMENTOSUS AT A TERTIARY CARE HOSPITAL - Nil

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2026/06/113027
Enrollment
50
Registered
2026-06-19
Start date
Unknown
Completion date
Unknown
Last updated
2026-06-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: L814- Other melanin hyperpigmentation

Interventions

Intervention1: Nil: Nil Intervention2: Nil: Nil

Sponsors

Muzaffarnagar meeical college and hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: - Clinical features suggestive of LPP. - Confirmed diagnosis of LPP on histopathology. - Dermoscopic features suggestive of LPP. - Persons/Parents/ guardian giving written informed consent

Exclusion criteria

Exclusion criteria: - Patients with a history of systemic diseases such as autoimmune disorders. - Pregnant or lactating women. -Those who have used systemic corticosteroids, immunosuppressants, or topical corticosteroids within the last four weeks prior to the study. -Persons/Parents/ guardian not giving written informed consent.

Design outcomes

Primary

MeasureTime frame
Number/proportion of positive patch test and photopatch test reactions in patients with Lichen Planus PigmentosusTimepoint: Assessment of patch test and photopatch test reactions at 48 hours (Day 2) and 96 hours (Day 4) after application.

Secondary

MeasureTime frame
Identification of common contact allergens & photoallergens associated with Lichen Planus PigmentosusTimepoint: Identification of allergens & photoallergens based on patch test & photopatch test readings at 48 hours (Day 2) & 96 hours (Day 4) after application.

Countries

India

Contacts

Public ContactCheshta Pulyani

Muzaffarnagar Medical College And Hospital

tarangderma4121@gmail.com9456203765

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Jun 29, 2026