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Novel topical therapies for acne vulgaris: a randomised, controlled, double blind comparison of the antibacterial efficacy of 1% w/v formulations of tert-butylhydroquinone, zinc pyrithione and benzoyl peroxide in healthy volunteers - Antibacterial efficacy of novel topical therapies for acne

Novel topical therapies for acne vulgaris: a randomised, controlled, double blind comparison of the antibacterial efficacy of 1% w/v formulations of tert-butylhydroquinone, zinc pyrithione and benzoyl peroxide in healthy volunteers - Antibacterial efficacy of novel topical therapies for acne

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2007-000232-12-GB
Enrollment
Unknown
Registered
2007-01-28
Start date
2007-01-31
Completion date
Unknown
Last updated
2012-03-19

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

Conditions

Healthy volunteer study. The product under development will be used for the treatment of acne vulgaris.

Interventions

Product Name: 1% Tert-butylhydroquinone Product Code: TBHQ Pharmaceutical Form: Gel INN or Proposed INN: Tert-butylhydroquinone CAS Number: 1948-33-0 Concentration unit: % (W/W) percent weight/weight

Sponsors

Syntopix Group plc
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: - Male - age 16 - 50 years - in good health - Caucasian Are the trial subjects under 18? yes Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: - any skin disease affecting the upper back - history of allergy or suspected allergy to any of the test substances - taking any regular treatment via the systemic route - use of any topical skin care preparations on the back or anti-bacterial skin care preparations at any site - atopy - any chronic medical condition that oculd affect drug handling by the skin, liver or kidneys - positive result in abbreviated drug screen - unwilling or unable to attend appointments on 15 consecutive days

Design outcomes

Primary

MeasureTime frame
Main Objective: To assess the ability of : - Topical formulations of 1% TBHQ, 1%ZnP and 1% BPO - A combination of 1% TBHQ and 1% BPO applied from separate topical formulations to reduce the population density (viable count) of cutaneous propionibacteria on the upper back by >/= 90% within 14 days and to determine the length of time it takes to achieve this .;Secondary Objective: 1. To assess the safety and tolerability of: - topical formulations of 1% TBHQ, 1% ZnP and 1% BPO - a combination of 1% TBHQ and 1% BPO applied from separate topical formulations 2. To assess the effect of these same topical formulations on the population density (viable count) of coagulase-negative staphylococci on the upper back;Primary end point(s): A >/= 90% mean reduction in propionibacterial population density on the upper back within 14 days from the start of treatment

Countries

United Kingdom

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026