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Examination of day-night cycle and the effect of medication with the neurohormone melatonin on visual functions in patients with diabetic retinopathy

Diabetic retinopathy: Effects of melatonin treatment on visual functions and circadian rhythm.

Status
Active, not recruiting
Phases
Phase 3Phase 4
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2015-003955-23-DK
Enrollment
32
Registered
2016-02-18
Start date
2016-04-15
Completion date
Unknown
Last updated
2021-10-08

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

Conditions

Diabetic Retinopathy and Sleep disorder MedDRA version: 20.1 Level: PT Classification code 10012689 Term: Diabetic retinopathy System Organ Class: 10015919 - Eye disorders

Interventions

Product Name: Melatonin Product Code: melatonin-DR2 Pharmaceutical Form: Tablet INN or Proposed INN: Melatonin CAS Number: 73-31-4 Other descriptive name: MELATONIN Concentration unit: mg milligram(s)

Sponsors

Dept. of Ophthalmology, Rigshospitalet – Glostrup
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Diabetic patients - Age range 40-75 years - Participant should be legally competent. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 20 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 12

Exclusion criteria

Exclusion criteria: - Other known eye disease. - Eye disease manifestation during ocular examination. - Competing neurologic and systemic conditions affecting retina. - Use of any drugs influencing pupillary light reflex and sleep pattern. - Refractive error with need of > 6 diopter lenses. - Pregnancy - Alcohol consumption during the trial - Lack of cooperation - Allergy to melatonin and/or preservatives in melatonin and placebo - Reduced hepatic function - Fluvoxamin intake due to drug interaction - Consumption of Alpha-1 and beta-1 adnergic antagoists. - Alkohol indtag under forsøgsperioden, da alkohol nedsætter melatonins søvnregulerende effekt.

Design outcomes

Primary

MeasureTime frame
Timepoint(s) of evaluation of this end point: End of vist-5;Main Objective: To investigate the effects of melatonin treatment on visual functions and circadian rhythm in diabetic patients with or without diabetic retinopathy.;Secondary Objective: To investigate the effects of melatonin treatment on the circadian rhythm in diabetic patients with or without diabetic retinopathy.;Primary end point(s): Progression of diabetic retinopati measured with electroretinography (ERG).

Secondary

MeasureTime frame
Secondary end point(s): Additional electroretinographic parameters: - Pupillometry Circadian photoentrainment incl. sleep: - Salivary melatonin level, sleep and activity measurement (Actigraphy) and sleep questionaires. Structurel retinal evaluation: - Retinal nerve fiber layer (RNFL) measured with Optical Coherence Tomography. - Fundusphotgraphy Functional retinal evaluation: - Visual acuity;Timepoint(s) of evaluation of this end point: End of visit-5

Countries

Denmark

Contacts

Public ContactReseach laboratory section 37

Dept. of Ophthalmology, Rigshospitalet – Glostrup

shakoor.ba-ali.04@regionh.dk+4531614923

Outcome results

None listed

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