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A randomized-sided, placebo-controlled, half-head pilot study to evaluate the effect of platelet-rich plasma (PRP) on frontal fibrosing alopecia and lichen planopilaris

A randomized-sided, placebo-controlled, half-head pilot study to evaluate the effect of platelet-rich plasma (PRP) on frontal fibrosing alopecia and lichen planopilaris

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20250526007
Enrollment
10
Registered
2025-05-26
Start date
2022-06-09
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Lichen planopilaris, frontal fibrosing alopecia Lichen planopilaris, frontal fibrosing alopecia

Interventions

PRP was prepared using a double spin technique. First, 12 mL of whole blood was collected in two 6 mL ethylenediaminetetraacetic acid tubes. The tubes were centrifuged at 2000 RPM for 10 minutes in a
Experimental Biological/Vaccine,Placebo Comparator Other
Platelet rich plasma (PRP) injection,NSS (placebo)

Sponsors

Faculty of Medicine Siriraj Hospital, Mahidol University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Patients aged equal or more than 18 years were eligible if they had confirmed LPP or FFA (based on clinical and/or histopathological findings at the hair clinic, Siriraj Hospital) 2. All participants also had no disease progression for at least 6 months, with or without receiving standard treatments. 3. All participants exhibited lesions of comparable severity on both sides of the scalp.

Exclusion criteria

Exclusion criteria: 1. Co-existing with other hair loss-causing conditions (eg, anemia, diabetes, thyroid disorders, autoimmune diseases, telogen effluvium) 2. Use of medications known to induce hair loss (eg, oral retinoids, antidepressants, warfarin); active scalp infections 3. Contraindications to PRP (eg, clotting disorders, HIV, hepatitis B, hepatitis C) 4. Pregnancy and breastfeeding 5. Having a history of allergy to local anesthetics

Design outcomes

Primary

MeasureTime frame
Dermatologist evaluation week 20 7 point scale,Patient satisfaction week 20 7 point scale

Secondary

MeasureTime frame
Adverse effects Week 0, 4, 8 Example: pain, erythema, swelling, pruritus

Countries

Thailand

Contacts

Public ContactKanchalit Thanomkitti

Faculty of Medicine Siriraj Hospital, Mahidol University

kanchalitt@gmail.com0804406014

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026