Ginkgo Biloba for the Treatment of Vitiligo Vulgaris in Adolescents

University of Toronto

Status and phase

Completed

Phase 1

Conditions

Vitiligo Vulgaris

Treatments

Dietary Supplement: Ginkgo biloba

Study type

Interventional

Funder types

Other

Identifiers

NCT00907062

REB 23373

NHPD#-137767

Details and patient eligibility

About

Vitiligo is a common hypopigmentation disorder with significant psychological impact if occurring before adulthood. One study investigating the use of Ginkgo biloba for the treatment of vitiligo in adults reports effectiveness, but has significant flaws. We endeavor to conduct an open label pilot clinical trial replicating the previous trial on 12 adolescents 12 to 18 years old. The purpose of the pilot is to test the feasibility of recruitment and patient retention, variability of outcome measures, and identify major safety concerns. The pilot will use 60 mg of standardized G. biloba two times per day (BID) for 12 weeks. The primary outcome will be the validated Vitiligo European Task Force (VETF) evaluation form, secondary outcomes will include the Vitiligo Area Scoring Index (VASI), assess repigmentation via photographs, and will monitor and report adverse reactions.

Enrollment

12 patients

Sex

All

Ages

12 to 18 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

• males and females
- 12 to 18 years old
- self selected candidates identifying themselves to suffer with vitiligo vulgaris of any duration
- minimum VASI score of 4, no maximum score (corresponding to a 3cm2 completely (100%) depigmented lesion, or a 6cm2 50% depigmented lesion)
- stable or progressing vitiligo
- mentally competent subjects able to adhere to the given protocol and treatments administered as interventions
- normal on physical examination at the pre-study intake, and in the case of abnormalities the health care practitioner considers them to be clinically insignificant
- written and informed consent
- the potential candidate must have a family doctor that they have seen in the last 12 months
- negative pregnancy test for menstruating women and if sexually active, a willingness to practice adequate birth control for the duration of the trial
- diagnosis of vitiligo confirmed by supervising medical doctor

Exclusion criteria

• use of medications contraindicated with Ginkgo biloba:
- daily use of acetylsalicylic acid, ibuprofen, NSAIDs, fish oils, vitamin E
- any prescription or use of blood thinners, anticoagulants, anti-platelet drugs, pentoxifylline, clotting factor replacements, antihypertensive medications, Thiazide diuretics, Acetylcholinesterase inhibitors, anticonvulsants, hypoglycemic agents, MAOI, SSRI, Nifedipine, Papaverine, Yohimgine, Sildenafil
- history of diabetes, seizures, haemophilia
- allergy or sensitivity to Ginkgo biloba or other constituents in the capsule
- any treatment for vitiligo within the last 2 months
- current use of Ginkgo biloba or within the last 2 months
- mentally or physically incapacitated such that assent or informed consent cannot be obtained.
- any history or other condition which the study physician regards as clinically significant to the study
- a major illness considered to be clinically significant by the study physician within 2 months of the study start date
- current participation in another intervention trial.
- pregnancy or intent to become pregnant in the next 4 months
- current alcoholism or substance abuse.
- current history of tumors, any history of skin cancer
- any current serious disorders determined to be clinically significant to the study.
- breast feeding women
- no prior skin grafts or surgeries, or scheduled surgeries of any kind.
- any abnormalities on the INR, PTT, or CBC tests at baseline