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SunburnNCT03007589

Natural Sunlight Protection and Simulated Sunlight Protection Offered by Sunscreens and Fabrics

A study testing otc sunscreens, sun protection fabrics and Optical Filters in people with Sunburn and Sun Damaged Skin, run by Sun Protection Foundation at 5 sites in 3 countries.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

The purpose of this study is to assess how human skin reacts and how sunscreens and sun protection fabrics protect in natural sunlight compared to their labeled claims, indoor testing methods (existing or modified) and instructions. Read more about this study

Who is it for?
Ages 15 to 90 yearsHealthy volunteers can take part
What is being tested?
otc sunscreens, sun protection fabrics and Optical Filters
Could I receive a placebo?
No, everyone receives an active treatment
How many people
200 participants
Where
5 sitesin 3 countries
Study dates
Apr 2014to Jan 2040
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 15 to 90 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Fitzpatrick Type I, II, III, IV or V type skin.
  • Must be able to be exposed to natural sunlight for up to 4 hours in a prone position
  • Able to read, write, speak and understand the English language.
  • Has personally read, signed, and dated the Informed Consent Form (including HIPAA disclosure) and Photograph Release
  • Generally in good health based on medical history reported by the subject
  • Healthy male or female subjects with no history or evidence of clinically relevant medical disorder, as determined from a brief medical history interview.
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  • Willing and able to follow the study instructions, including:
  • Remain outdoors exposed to the sun or in the laboratory for up to 4 hours on Day 1 during the study with exposed skin on back protected by sunscreens and fabrics
  • Apply the specific sunscreens and fabrics to designated sites on the back and lie motionless.
  • No visual signs of recent sun exposure to the back.
  • No sunscreens or lotions recently used on the back.
  • Attend scheduled visits and intend to successfully complete the study
  • Stay out of the sun or stay indoors from sun exposure until after observation on Day 2.
  • Women are discouraged from using a bra that applies pressure to the skin site areas that may make it difficult to assess erythema or PPD on Day 2.
  • Refrain from using other sunscreen products or tanning bed use during the duration of the study.

Who cannot join

  • Individuals with known allergies or sensitivities to sunscreens or any ingredient contained in the test products or common topical skincare products, including adhesives.
  • Perceptible erythema, PPD on the back as determined by the PI or designee.
  • Women known to be pregnant or nursing.
  • Individuals with any disease or condition of the skin (e.g., active [i.e. flaring] eczema or psoriasis, skin cancer, atypical nevus, polymorphic light eruption (PMLE), porphyria, systemic lupus erythematous (SLE), xeroderma pigmentosa (XP)) that could interfere with the study or increase risk to the subject.
  • Individuals with self-reported UNCONTROLLED metabolic conditions, such as diabetes, hypertension, hyper/hypothyroidism, hypercholesterolemia
  • Subjects who are taking medication for chronic conditions that may make a subject more sun sensitive (e.g., Tetracyclines, antifungals, certain diuretics, etc.)
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  • Skin diseases on tested sites (e.g., photosensitivity disorders, etc.), which may influence the outcome of the study
  • An individual who has any condition which in the PI's judgment makes the candidate an inappropriate subject for study participation
  • Individuals with a condition or situation which, in the PI's opinion, may put the subject at significant risk, may confound the study results, or may interfere significantly with the subject's participation in the study
  • Individual viewed by the PI as not being able to complete the study

Trial locations and contacts

5 sites in 3 countries. Contact the study team or a site near you to ask about taking part.

5 sites in 3 countries

United States3 sites
  • Sun Protection Foundation

    San Diego, California, 98108

  • Sun Protection Foundation

    Seattle, Washington, 98108

  • Sun Protection Foundation

    Waimea, Hawaii, 98108

Other trials in United States

Chile1 site
  • Sun Protection Foundation

    Santiago

Other trials in Chile

Peru1 site
  • Sun Protection Foundation

    Arequipa

Other trials in Peru

About this study

The purpose of this study is to assess how human skin reacts and how sunscreens and sun protection fabrics protect in natural sunlight compared to their labeled claims, indoor testing methods (existing or modified) and instructions.

Read the detailed description

To evaluate the difference in the level of erythema and persistent pigment darkening sun protection following a single period of natural sunlight exposure or laboratory solar simulator exposure afforded by application of sunscreens, use of fabrics, and use of pass through glass filters.

Being tested
otc sunscreens, sun protection fabrics, Optical Filters
Keywords
erythema, persistent pigment darkening, sunburn, suntan
Medical subject headings
Sunburn, Erythema

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • otc sunscreensDrug

    Also called 30 SPF Broad Spectrum Sunscreen, 40 SPF Broad Spectrum Sunscreen, 45 SPF Broad Spectrum Sunscreen, 50 SPF Broad Spectrum Sunscreen

    Sunscreens of various SPF levels and ingredients

  • sun protection fabricsOther

    Also called 100+ SPF Broad Spectrum Fabric Solumbra, 30+ SPF Broad Spectrum Fabric Solumbra

    fabrics

  • Optical FiltersOther

    Also called Pass Through Glass

    Optical band pass or long pass filters or surfaces/mirrors used in solar simulators

Study groups in NCT03007589
Study groupRoleWhat they receive
LocationOtherLocation and Intensity of Exposure to Sunlight otc sunscreens sun protection fabrics optical filters
Receives: Drug: otc sunscreens; Other: sun protection fabrics; Other: Optical Filters
Single Duration or SPF TestOtherSingle exposure of interventions or multiple exposures of interventions (SPF or PPD-PF tests) otc sunscreens sun protection fabrics optical filters
Receives: Drug: otc sunscreens; Other: sun protection fabrics; Other: Optical Filters

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Erythema

    • Erythema was assessed using a scale of 0 = no perceptible sun induced skin reaction, 1 = perceptible erythema but spotty or without clear borders (<1 MED); 2 = minimal erythema over the entire site with distinct borders (1 MED reaction); 3 = more than minimal; 4 = a serious erythema; and 5 = edema and blisters.

    Determination made by blinded evaluator on-site or using chroma-meter and photographs.

    Measured: 16-24 hours post exposure to natural sunlight

  2. Persistent Pigment Darkening (PPD)

    Persistent Pigment Darkening was assessed using a scale of 0 = no perceptible sun induced skin reaction, 1 = perceptible but spotty or without clear borders (<1 MPPDD); 2 = minimal PPD over the entire site with distinct borders (1 MPPDD reaction); 3 = more than minimal; 4 = a serious erythema; and 5 = edema and blisters

    Determination made by blinded evaluator on-site or using chroma-meter and photographs.

    Measured: 16-24 hours post exposure to natural sunlight

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Jan 2017 (estimated)
  2. Study startApr 2014
  3. Primary completionJan 2040 (estimated)
  4. Study completionJan 2040 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03007589
Sponsor's protocol ID
SPF-2014-001
Status last verified
May 2025
First submitted
26 Dec 2016
Last updated
15 May 2025
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing otc sunscreens, sun protection fabrics and Optical Filters in people with Sunburn and Sun Damaged Skin, run by Sun Protection Foundation at 5 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 15 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: enrolling by invitation, as of the sponsor's last update on 15 May 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in United States, Chile, Peru. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Erythema (time frame: 16-24 hours post exposure to natural sunlight). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 May 2025.

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