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Skin CancerNCT01032343

An Immunonutritional Approach to the Prevention of Skin Cancer

A study testing Omega-3 PUFA and Gelatine in people with Skin Cancer, run by University of Manchester at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Skin cancer incidence continues to rise and ultraviolet radiation (UVR) in sunlight is the principal cause. Solar UVR can promote cancer development through its ability to suppress the immune system. Read more about this study

Who is it for?
Ages 18 years and older, women onlyHealthy volunteers can take part
Conditions the study is for
Skin Cancer
What is being tested?
Omega-3 PUFA and Gelatine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
90 participants
Where
1 siteUnited Kingdom
Study dates
Jul 2008to Nov 2010
Phase
Interventional
Are there results?
None posted in the registry

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 18 years and older
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Pre-menopausal females
  • Sun-reactive skin type I / II
  • Reporting allergy to jewellery with nickel content

Who cannot join

  • History of atopy
  • History of skin cancer
  • History of a photosensitivity disorder
  • Sunbathing (including sunbeds) in the last 3 months
  • Pregnancy
  • History of cardiac disease
Show all 9Show fewer
  • Taking photoactive medicine
  • Not able to eat fish or gelatine
  • Taking fish oil supplements prior to the study

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Salford Royal NHS Foundation Trust

    Manchester, M6 8HD

Other trials in United Kingdom

About this study

Official title: The Effect of Omega-3 Polyunsaturated Fatty Acids on UV-induced Immunosuppression

Skin cancer incidence continues to rise and ultraviolet radiation (UVR) in sunlight is the principal cause. Solar UVR can promote cancer development through its ability to suppress the immune system. The purpose of this study is to determine whether dietary supplementation with omega-3 polyunsaturated fatty acids can protect human skin from UVR-induced immunosuppression.

Read the detailed description

Skin cancer is one of the most common human cancers with a rising incidence and considerable negative impact on human health. Exposure to ultraviolet radiation (UVR) in sunlight is the major aetiological factor in skin cancer initiation and progression. Human case-control studies have reported an inverse relationship between dietary fish or omega-3 polyunsaturated fatty acid (PUFA) intake and occurrence of non-melanoma skin cancer. Omega-3 PUFA have the potential to reduce the risk of photocarcinogenesis primarily by their ability to reduce production of prostaglandin E2 and consequently photoimmunosuppression. To date, no studies have assessed the impact of omega-3 PUFA on skin photoimmunosuppression in humans.

OBJECTIVE: To examine the potential of dietary omega-3 PUFA to protect against UVR-induced cutaneous immunosuppression in humans.

STUDY DESIGN: A double-blind randomised controlled nutritional study in 64 healthy human volunteers with nickel sensitivity. Volunteers will receive 3 months dietary supplementation with either omega-3 PUFA (n=32) or gelatine (n=32) both provided in identical gelatine capsules.

The aim is to quantify the influence of omega-3 PUFA on:

  1. UVR-induced suppression of clinical contact hypersensitivity (CHS) responses
  2. UVR-induced modulation of epidermal Langerhans cell trafficking
  3. UVR-induced modulation of levels of immunoregulatory mediators
Conditions
Skin Cancer
Being tested
Omega-3 PUFA, Gelatine
Keywords
Immunosuppression, Ultraviolet radiation, Nickel, Contact hypersensitivity
Medical subject headings
Skin Neoplasms, Dermatitis, Contact

What participants receive

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

  • Omega-3 PUFADietary supplement

    One capsule (4g omega-3 PUFA) daily for 3 months

  • GelatineDietary supplement

    One capsule daily for 3 months

Study groups in NCT01032343
Study groupRoleWhat they receive
Omega-3 PUFA capsuleActive comparatorNot described
Receives: Dietary Supplement: Omega-3 PUFA
Gelatine capsulePlacebo comparatorNot described
Receives: Dietary Supplement: Gelatine

What is being measured

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

  1. Degree of suppression of nickel-induced contact hypersensitivity

    Measurement of the erythema of nickel-induced eczema using a reflectance instrument

    Measured: 3 months

Secondary outcomes (3)
  1. Intergroup comparison of cytokine and eicosanoid levels and Langerhans cell numbers

    Measured: 3 months

  2. Correlation of susceptibility to photoimmunosuppression in all subjects with their erythrocyte omega-3:omega-6 PUFA ratio

    Measured: 3 months

  3. Correlation of susceptibility to photoimmunosuppression with cytokine and eicosanoid levels and Langerhans cell numbers

    Measured: 3 months

Timeline

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

  1. First posted15 Dec 2009 (estimated)
  2. Study startJul 2008
  3. Primary completionJul 2010
  4. Study completionNov 2010

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
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
90 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01032343
Sponsor's protocol ID
AICR 08-0131
Other IDs
UKCRN 6873
Status last verified
Aug 2013
First submitted
14 Dec 2009
Last updated
22 Aug 2013
Results posted
No
Data monitoring committee
No

Publications

  • Pilkington SM, Massey KA, Bennett SP, Al-Aasswad NM, Roshdy K, Gibbs NK, Friedmann PS, Nicolaou A, Rhodes LE. Randomized controlled trial of oral omega-3 PUFA in solar-simulated radiation-induced suppression of human cutaneous immune responses. Am J Clin Nutr. 2013 Mar;97(3):646-52. doi: 10.3945/ajcn.112.049494. Epub 2013 Jan 30.

    PubMed 23364005
  • Pilkington SM, Rhodes LE, Al-Aasswad NM, Massey KA, Nicolaou A. Impact of EPA ingestion on COX- and LOX-mediated eicosanoid synthesis in skin with and without a pro-inflammatory UVR challenge--report of a randomised controlled study in humans. Mol Nutr Food Res. 2014 Mar;58(3):580-90. doi: 10.1002/mnfr.201300405. Epub 2013 Dec 5.

    PubMed 24311515

Questions about this trial

What is this clinical trial studying?

A study testing Omega-3 PUFA and Gelatine in people with Skin Cancer, run by University of Manchester at 1 site in United Kingdom.

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 3 inclusion and 9 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: finished, as of the sponsor's last update on 22 Aug 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. 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. Some participants in this study may receive a placebo. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Degree of suppression of nickel-induced contact hypersensitivity (time frame: 3 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01032343, which also lists 2 linked publications.

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 22 Aug 2013.

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