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A single-center, randomized, parallel controlled clinical trial of mild multiplex sunscreen containing calendula extract (SPF50+ PA++++) for improving skin symptoms after sun exposure

A single-center, randomized, parallel controlled clinical trial of mild multiplex sunscreen containing calendula extract (SPF50+ PA++++) for improving skin symptoms after sun exposure

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2300068609
Enrollment
Unknown
Registered
2023-02-24
Start date
2022-08-26
Completion date
Unknown
Last updated
2023-05-22

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

Conditions

Atopic dermatitis(AD)

Interventions

A:Test on the left and control on the right
B:Right subject sample left control sample

Sponsors

Beijing Children's Hospital Affiliated to Capital Medical University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Age >=3 years old and < 18 years old, both sexes; (2) Children with healthy skin in the past and present; (3) Fitzpatrick skin type II-IV (yellow race); (4) The guardian of the subject is willing to give the subject the test product during the whole study period according to the guidance of the doctor Companionship research;

Exclusion criteria

Exclusion criteria: (1) Existing skin diseases in the subject site, or the use of photosensitive drugs (such as tetracycline, antifungal drugs,Some diuretics); (2) Known allergy to the subject sunscreen product; (3) A history of sunburn or light-related skin; (4) Subjects shall not use other similar sunscreen products during the whole study period.

Design outcomes

Primary

MeasureTime frame
Comparison of the difference in the degree of sun redness (erythema value) of bilateral treatment areas (left and right sides) between the two groups;

Secondary

MeasureTime frame
The insolation degree of each treated area was observed by naked eye for bilateral comparison (bilateral difference scale, erythema score).;Skin barrier physiological parameters (including cuticle water content, TEWL, and melanin value) were compared bilaterally in each treated area;Analysis and comparison of different Fitzpatrick subgroups;The number of resmears during the study period;The adverse reactions and adverse events were observed;

Countries

China

Contacts

Public ContactMa LIin
bch_maleen2021@126.com010-59616882

Outcome results

None listed

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