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An open-label split-face study of efficacy and safety of topical Timolol, topical Tetrachlorodecaoxide and topical Oxymetazoline on post comedo extraction facial erythema: a pilot study

An open-label split-face study of efficacy and safety of topical Timolol, topical Tetrachlorodecaoxide and topical Oxymetazoline on post comedo extraction facial erythema: a pilot study

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
TCTR
Registry ID
TCTR20210604003
Enrollment
45
Registered
2021-06-04
Start date
2020-12-01
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

Acne vulgaris patients who can be treated by comedo extraction topical timolol, tetrachlorodecaoxide, oxymetazoline, post extraction erythema, post acne erythema, comedone extraction

Interventions

Topical 0.5% Timolol maleate: Subjects will be performed comedo extraction by the same dermatologist throughout the study period. After the extraction, fifteen subjects who are assigned to be treated
Experimental Drug,Experimental Drug,Experimental Drug
Topical 0.5% Timolol maleate,topical Tetrachlorodecaoxide,0.05% oxymetazoline hydrochloride

Sponsors

None
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: 1. subjects age 18-50 years old 2. subjects with acne vulgaris that can be treated by comedo extraction 3. symmetrical acne vulgaris on both sides of face, defined as less than 10 comedones and 5 inflammatory papules differed between 2 sides of face, and less than 10% erythema score difference between 2 sides of face, measured by Visia

Exclusion criteria

Exclusion criteria: 1. Subjects with history of rosacea or other active dermatitis on the treatment site 2. Subjects with history of hypertrophic scars or keloid 3. Previously known allergic reaction to timolol, tetrachlorodecaoxide and oxymetazoline 4. Subjects with past medical history of hypertension, asthma, cardiovascular disease, cerebrovascular disease, vascular disease, close angle glaucoma, hypotension or postural hypotension 4. A pregnant or breast feeding subjects

Design outcomes

Primary

MeasureTime frame
Erythema score baseline, 1 day, 3 days, 7 days and 1 month after treatment Visia image analysis for erythema score evaluation,Erythema, edema and crusting score baseline, 1 day, 3 days, 7 days and 1 month after treatment Physician's assessment by 4-point grading scale

Secondary

MeasureTime frame
Side effects after treatment such as pain score, tightness score, pruritus score, patient satisfaction score baseline, 1 day, 3 days, 7 days and 1 month after treatment Subject's assessment by visual analogue scale(VAS),Satisfaction score after treatment 1 day, 3 days, 7 days and 1 month after treatment Subject's assessment by visual analogue scales(VAS)

Countries

Thailand

Contacts

Public ContactChanat Kumtornrut

Division of Dermatology, Faculty of Medicine, Chulalongkorn university

chanat_1@yahoo.com66814594965

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026