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Canthaxanthin Retinopathy: A Long-term Observation

NCT01128062 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 35

Last updated 2010-05-21

No results posted yet for this study

Summary

Canthaxanthine is a naturally occurring carotenoid that has been a popular over-the-counter oral artificial tanning agent in Europe, Canada, and Australia since 1979. It is also used at low dosage as a food-colouring agent and as a therapeutic agent for photosensitivity disorders such as erythropoietic protoporphyria. Canthaxanthin retinopathy was first described in 1982 by Cortin et al. In Germany the office of the federal board of health refused the permit for oral tanning agents containing canthaxanthine in 1985. At that time the long-term course of the disease was not known. 25 years later the investigators did these long-term follow-up examinations.

Conditions

  • Canthaxanthin Retinopathy

Sponsors & Collaborators

  • University of Cologne

    lead OTHER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
1983-12-31
Primary Completion
2009-12-31
Completion
2010-05-31

Countries

  • Germany

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01128062 on ClinicalTrials.gov