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Completed

NCT Number: NCT00610675

Fifty Two Week Extension Trial of Org 50081 (Esmirtazapine) in the Treatment of Insomnia (P05708)

This trial is a 52-week, open-label extension trial to investigate safety and to explore efficacy of Org 50081 (Esmirtazapine) in participants who completed Protocol 176001 (P05706) (NCT00482612) or 176002 (P05707) (NCT00506389). Participants who have completed Protocol P05706 or P05707, and are willing to continue treatment with Esmirtazapine, can participate in Protocol 176004 (P05708) after signing informed consent.

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Key information

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • sign written informed consent after the scope and nature of the investigation have been explained to them, before any trial-related evaluations;
  • completed Protocol P05706 or P05707;
  • Have safety and efficacy assessments conducted per protocol P05706 or P05707.

Exclusion criteria

  • clinically relevant electrocardiogram (ECG) abnormalities as judged by the investigator;
  • clinically relevant abnormal laboratory values as judged by the investigator;
  • any adverse event deemed relevant for exclusion in Protocol P05708 as judged by the investigator or,
  • were significantly non compliant with protocol criteria and procedures of Protocol P05706 or P05707, as judged by the investigator.

Treatment and study plan

Org 50081

Drug

One tablet daily

Primary outcomes

  1. Number of Participants With an Adverse Event

    Time frame: Up to 57 weeks

    An Adverse Event (AE) is any untoward occurrence in a participant who is administered any pharmaceutical product, and which does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding) symptom, or disease temporarily associated with the use of an investigational medicinal product (IMP), whether or not it is related to the IMP.

  2. Number of Participants Who Discontinued Treatment Due to an Adverse Event

    Time frame: Up to 52 weeks

    An Adverse Event (AE) is any untoward occurrence in a participant who is administered any pharmaceutical product, and which does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding) symptom, or disease temporarily associated with the use of an IMP, whether or not it is related to the IMP.

Secondary outcomes

  1. Change From Baseline in Total Sleep Time at Week 52

    Time frame: Baseline and Week 52

    Total Sleep Time (TST) is a subjective time recorded by the participant in an electronic sleep diary in response to the question "How much time did you actually spend sleeping?". Baseline values were calculated by averaging baseline values from base trials P05706 and P05707. Data at baseline and at week 52 were collected every morning and evening for 7 consecutive days, and these data were then averaged. Missing values were imputed by the last observation carried forward (LOCF) method, where the last available assessments prior to the scheduled observation were averaged.

  2. Change From Baseline in Sleep Latency at Week 52

    Time frame: Baseline and Week 52

    Sleep Latency (SL) is the time from when the participant went to bed up to the the time the participant actually fell asleep, recorded by the participant in an electronic sleep diary. Baseline values were calculated by averaging baseline values from base trials P05706 and P05707. Data at baseline and at week 52 were collected every morning and evening for 7 consecutive days, and these data were then averaged. Missing values were imputed by the LOCF method, where the last available assessments prior to the scheduled observation were averaged.

  3. Change From Baseline in Wake Time After Sleep Onset at Week 52

    Time frame: Baseline and Week 52

    Wake time after sleep onset (WASO) is, if the planned waking time is on or after the time of final awakening, as follows: total time from falling asleep to the time of planned wake up minus the total sleep time. If the planned waking time is before the time of final awakening then WASO is as follows: total time from falling asleep to the time of actual final awakening minus the total sleep time. All times were recorded by the participant in an electronic sleep diary. Baseline values were calculated by averaging baseline values from base trials P05706 and P05707. Data at baseline and at week 52 were collected every morning and evening for 7 consecutive days, and these data were then averaged. Missing values were imputed by the LOCF method, where the last available assessments prior to the scheduled observation were averaged.

  4. Change From Baseline in Number of Awakenings at Week 52

    Time frame: Baseline and Week 52

    Number of awakenings is a subjective number recorded by the participant in an electronic sleep diary. Baseline values were calculated by averaging baseline values from base trials P05706 and P05707. Data at baseline and at week 52 were collected every morning and evening for 7 consecutive days, and these data were then averaged. Missing values were imputed by the LOCF method, where the last available assessments prior to the scheduled observation were averaged.

  5. Change From Baseline in Quality of Sleep Scale at Week 52

    Time frame: Baseline and Week 52

    Quality of Sleep is a subjective number on a Visual Analog Scale recorded by the participant in an electronic sleep diary. The scale ranges from 0 to 100, where very poor is rated at 0, up to excellent, rated at 100. Baseline values were calculated by averaging baseline values from base trials P05706 and P05707. Data at baseline and at week 52 were collected every morning and evening for 7 consecutive days, and these data were then averaged. Missing values were imputed by the LOCF method, where the last available assessments prior to the scheduled observation were averaged.

  6. Change From Baseline in Satisfaction With Sleep Duration Scale at Week 52

    Time frame: Baseline and Week 52

    Satisfaction with Sleep Duration is a subjective number on a Visual Analog Scale recorded by the participant in an electronic sleep diary. The scale ranges from 0 to 100, where very unsatisfied is rated at 0, up to fully satisfied, rated at 100. Baseline values were calculated by averaging baseline values from base trials P05706 and P05707. Data at baseline and at week 52 were collected every morning and evening for 7 consecutive days, and these data were then averaged. Missing values were imputed by the LOCF method, where the last available assessments prior to the scheduled observation were averaged.

Sponsors and collaborators

Lead sponsor

Merck Sharp & Dohme LLC

Industry

Registry information

Official study title

Fifty-Two Weeks, Open Label Extension Trial to Evaluate Safety and Efficacy of Org 50081 in Outpatients With Chronic Primary Insomnia Who Completed Clinical Trial Protocol 176001 or 176002.

Important dates

Study start
2006
Primary completion
2009
Study completion
2009
First posted
Feb 8, 2008
Registry last updated
Oct 3, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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