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Fish oil in nickel sensitivity: an immunonutritional approach to the prevention of skin cancer

Oral omega-3 polyunsaturated fatty acid (n-3 PUFA) supplementation in ultraviolet radiation (UVR) induced cutaneous immunosuppression: a single site, double-blind, randomised, placebo controlled nutritional study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN29336462
Enrollment
64
Registered
2009-03-17
Start date
2009-03-02
Completion date
Unknown
Last updated
2018-05-28

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

Conditions

Skin cancer prevention Cancer Other malignant neoplasms of skin

Interventions

5 x 1 g capsules to be taken with breakfast Control (placebo): medium chain triglyceride oil (GTCC, Croda, UK)
5 x 1 g capsules to be taken with breakfast For each volunteer, the duration of nutritional supplementation is 12 weeks
follow-up is 2 weeks.
Active: fish oil supplements rich in n-3 PUFAs (Incromega E7010 SR, Croda, UK)

Sponsors

University of Manchester (UK)
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Female 2. Aged 18 - 60 years 3. Sun reactive skin type 1 or 2 4. Reporting allergy to jewellery with nickel content

Exclusion criteria

Exclusion criteria: 1. History of atopy 2. History of skin cancer 3. History of a photosensitivity disorder 4. Sunbathing in the past 3 months 5. Pregnancy 6. History of cardiac disease 7. Taking of photoactive medication 8. Not able to eat fish or gelatin 9. Taking fish oil supplements prior to the study 10. Consuming more than 3 meals containing oily fish per week

Design outcomes

Primary

MeasureTime frame
To examine the protective effect of n-3 PUFA on: 1. UVR-induced suppression of clinical CHS responses using the International Contact Dermatitis Research Group (ICDRG) grading scale: No reaction (-) to extreme positive (+++) 2. UVR-induced modulation of immune cells (epidermal Langerhans cells) using immunohistochemistry of epidermal sheets Assessed simultaneously at 13 weeks.

Secondary

MeasureTime frame
Levels of immunoregulatory mediators in the skin using mass spectrometry analysis and Luminex analysis of cytokine expression in suction blister fluid. Assessed simultaneously at 13 weeks.

Countries

United Kingdom

Outcome results

None listed

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