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Not yet recruitingNCT05456152Updated Sep 7, 2023

Safety and Efficacy of Zolpidem in the Long-Term Treatment of Insomnia

A Phase 3 interventional study of Sublingual Tablet in Chronic Insomnia, sponsored by EMS. Not yet recruiting at 1 site in Brazil. Open to participants aged 18 Years to 64 Years. Per ClinicalTrials.gov, last updated 2023-09-07.

Sponsored by EMS · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jan 2025, 1 year 9 months ago, but the record still lists the study as not yet recruiting.
Phase
Phase 3
Study type
Interventional
Enrollment
358
Allocation
Not applicable
Ages
18 Years to 64 Years
Sex
All
01

Study summary

The purpose of this study is to evaluate the safety and efficacy of sublingual zolpidem during the long-term treatment of insomnia.

02

Conditions studied

  • Chronic Insomnia

Keywords

  • Chronic insomnia
  • Sleep disorder
03

In context

Sleep Initiation and Maintenance Disorders

1,855 studies on the registry are indexed under Sleep Initiation and Maintenance Disorders; 593 are open to participants now.

This study's planned enrollment of 358 is above 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

EMS is the lead sponsor of 84 studies on the registry; 21 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 64 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Ability to confirm voluntary participation and agree to all trial purposes by signing and dating the informed consent forms;
  • Age between 18 to 64 years;
  • Participants diagnosed with chronic insomnia defined by difficulty in initiating or maintaining sleep in the last 3 months for at least 3 nights a week according to DSM-V criteria and confirmed by polysomnography;
  • Participants with difficulty in initiating or maintaining sleep parameters.

Exclusion criteria

Exclusion Criteria:

  • Participants with clinical or laboratory diagnose of non-treated hypothyroidism or hyperthyroidism, kidney or liver failure;
  • Known hypersensitivity to any of the formula compounds;
  • Participants with other sleep disorders according to the International Classification Sleep Disorders (3rd edition), example: sleep-relate breathing disorders, circadian rhythm sleep-wake disorders, parasomnias (including history of sleep-walking after hypnotic use) and sleep related movement disorders;
  • Participants using sedatives or hypnotic medications;
  • Participants with current diagnosis of depression or anxiety according to the Diagnostic and Statistical Manual of Mental Disorders;
  • Participants with history of drug and alcohol abuse in the past 2 years;
  • Participants with current smoking habits during the night period;
  • Participants who treated insomnia in the last 3 months;
  • Participants who are pregnant, breastfeeding or planning to get pregnant or female participants with the potential to become pregnant who are not using a reliable method of contraception;
  • Any clinical and laboratory findings that, in the judgment of the investigator, may interfere with the safety of research participants;
  • Participants with current or medical history of cancer in the last 5 years;
  • Participants who participated in other research protocol in the last 12 months, unless the investigator judges that there may be a direct benefit to it.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
358 participants (estimated)

Study arms

  • Experimental
    Sublingual zolpidem

    1 sublingual tablet (5mg) 30 minutes before bed time during 60 days.

    Drug: Sublingual Tablet

Interventions

  • DrugSublingual Tablet

    Sublingual zolpidem - 1 sublingual tablet 30 minutes before bed time.

06

What researchers measure

Primary outcomes

  1. To assess the safety profile of sublingual zolpidem during the long-term insomnia treatment.

    The safety profile will be assessed considering the number and percentage of each adverse event.

    Time frame: 60 days.

Secondary outcomes

  1. To evaluate daytime sleepiness in the next morning.

    The daytime sleepiness will be assessed using the Epworth Sleepiness Scale (ESS). The scale has a score from 0 to 24 and a score more than 10 is considered as excessive daytime sleepiness.

    Time frame: 60 days.

  2. To assess the adverse events during 7 days after the last dose administration.

    The safety profile will be assessed considering the number and percentage of each adverse event occurred 7 days after the last dose administration.

    Time frame: 7 days.

  3. To assess the number of adverse events in different periods of the clinical trial.

    The safety profile will be assessed considering the number of adverse events during the first 30 days and from 31 to 60 days of treatment.

    Time frame: 60 days.

  4. To assess the number of participants with adverse events in different periods of the clinical trial.

    The safety profile will be assessed considering the number of adverse events during the first 30 days and from 31 to 60 days of treatment.

    Time frame: 60 days.

Other outcomes

  1. To assess the efficacy of sublingual zolpidem in the sleep induction.

    The efficacy will be evaluated considering any change in the Latency to Persistent Sleep parameter (LPS) after 60 days of treatment in comparison to the baseline measure.

    Time frame: 60 days.

  2. To assess the efficacy of sublingual zolpidem in the improvement of sleep quality.

    The efficacy will be evaluated considering any change in the Sleep Efficiency parameter (SE) after 60 days of treatment in comparison to the baseline measure.

    Time frame: 60 days.

  3. To assess the efficacy of sublingual zolpidem in the improvement of time awake before onset.

    The efficacy will be evaluated considering any change in the Wake After Sleep Onset parameter (WASO) after 60 days of treatment in comparison to the baseline measure.

    Time frame: 60 days.

07

Study locations

1 site
  • Investigational Site
    São Paulo, SP, Brazil
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 7, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05456152
Lead sponsor
EMS
Responsible party
Sponsor
First posted
Jul 13, 2022
Start date
Jun 2024 (estimated)
Primary completion
Jan 2025 (estimated)
Completion
Feb 2025 (estimated)
Last update
Sep 7, 2023

Study contacts

Alexandra F.D. Alves, MSc
Contact
pesquisa.clinica@ncfarma.com.br
+551938878917

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2023. You cannot join it, but the record below documents what was studied.

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