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CompletedNCT00816673Neu IUpdated Nov 14, 2024

Sleep Inducing And Maintaining Efficacy Of Circadin In Elderly Insomniacs

A Phase 2 interventional study of placebo Circadin and Circadin in Primary Insomnia, sponsored by Neurim Pharmaceuticals Ltd.. Completed at 1 site in France. Open to participants aged 55 Years to 70 Years. Per ClinicalTrials.gov, last updated 2024-11-14.

Sponsored by Neurim Pharmaceuticals Ltd. · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
55 Years to 70 Years
Sex
All
01

Study summary

The aim of this placebo controlled study is to investigate the effect of 2 mg melatonin Slow Release (Circadin®) on the sleep/wake cycle in elderly insomniac out-subjects, aged 55 years or more.

Read the detailed description

Circadin® is a newly developed slow release galenic formulation of melatonin, producing overall levels of melatonin comparable to those observed in a control population, when administered to patients with deficiency in melatonin; thus it deserves more clinical and paraclinical investigations for establishing efficacy in inducing and maintaining sleep and for safety. Since, on the one hand, the endogenous substance melatonin has beneficial effects on sleep in man and, on the other hand, there is a decrease in melatonin secretion in elderly people, substitution therapy in elderly insomniacs would be a desirable therapy.

The aim of this placebo controlled study was to investigate the effect of 2 mg Melatonin Slow Release (Circadin®) on the sleep/wake cycle in elderly insomniac out-subjects, aged 55 years or more. Sleep was assessed by means of polysomnography (hypnographic results), all-night sleep EEG spectral analysis (functional and quantitative results of sleep EEG), actimetry (SomnitorTM), wake EEG and sleep/wake quality questionnaires. Vigilance and cognitive skills were assessed by means of psychomotor and neurocognitive tests derived from the Leeds psychomotor test battery (vigilance and arousal) and TEA battery (attention).

02

Conditions studied

  • Primary Insomnia

Keywords

  • Insomnia
  • Primary insomnia
  • sleep latency
  • non restorative sleep
  • sleep quality
  • Double-Blind
  • Placebo Controlled
  • Parallel-Group
  • Sleep Laboratory Study
03

In context

Sleep Initiation and Maintenance Disorders

1,856 studies on the registry are indexed under Sleep Initiation and Maintenance Disorders; 594 are open to participants now.

This study's enrollment of 40 is below the median of 73 across 1,631 interventional studies indexed under Sleep Initiation and Maintenance Disorders.

Browse Sleep Initiation and Maintenance Disorders studies →

Lead sponsor

Neurim Pharmaceuticals Ltd. is the lead sponsor of 14 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
55 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Healthy male and female, aged ≥ 55 years, suffering from primary insomnia according to DSM-IV criteria (307.42)

Exclusion criteria

Exclusion Criteria:

  • According to DSM-IV, subjects belonging to the following groups are excluded: 780.59; 307.45; 307.47; 780.xx (Appendix 2);
  • Use of benzodiazepines or other hypnotics during the preceding 1 month with a frequency of more than 2 times a week and lasting more than 2 weeks;
  • Severe neurological, psychiatric or sleep disorders;
  • Other serious diseases;
  • Taking more than 1/2 l of alcohol, more than 3 cups of coffee or more than 10 cigarettes per day .
  • Subjects who need beta blockers as a treatment.
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
40 participants (actual)

Study arms

  • Placebo comparator
    placebo

    Drug: placebo Circadin

  • Experimental
    Circadin

    Drug: Circadin

Interventions

  • Drugplacebo Circadin

    Placebo tabs of Prolonged release melatonin

  • DrugCircadin

    prolonged release melatonin 2 mg taken daily 2 hours before bed-time for 3 weeks

    Also known as: ATC code: N05CH01

06

Study locations

1 site
  • FORENAP
    Centre Hospitalier De Rouffach, F-68250, France
07

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 14, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
08

Registry details

Key details

Study ID
NCT00816673
Lead sponsor
Neurim Pharmaceuticals Ltd.
First posted
Jan 5, 2009
Start date
Sep 1996
Primary completion
May 1997
Completion
Sep 1997
Last update
Nov 14, 2024

Study contacts

Jean Paul MACHER, MD
principal investigator · Forenap
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2024. You cannot join it, but the record below documents what was studied.

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