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Primary InsomniaPhase 2NCT00664664

Subjective Study to Assess the Efficacy of APD125 in Patients With Sleep Maintenance Insomnia

A Phase 2 study testing APD125 in people with Primary Insomnia, run by Arena Pharmaceuticals at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study is designed to compare 2 doses of APD125 (20 mg and 40 mg) with placebo in otherwise healthy adults with primary insomnia primarily with complaints of maintaining sleep. Participants will be required to maintain a daily sleep dairy for up to 3 weeks while on study. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Primary Insomnia
What is being tested?
APD125
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
744 participants
Where
1 siteUnited States
Study dates
Apr 2008to Nov 2008
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Men and women, ages 18 to 65 years
  • Primary insomnia as defined in DSM-IV-TR, with predominant complaint of impaired sleep maintenance and confirmed by patient reported sleep diaries
  • Generally good health

Who cannot join

  • History of any sleep disorder, other than primary insomnia (e.g., restless leg syndrome, narcolepsy, sleep apnea, and disorders of REM/NREM sleep)
  • Any clinically significant medical condition, laboratory finding, or ECG finding
  • Pregnant and/or lactating females
  • History of substance abuse within 2 years or positive urine drug screen
  • Positive Hepatitis B/C results or HIV markers
  • History of treatment with an investigational drug within the last month
  • Recent travel involving crossing more than 3 time zones or plans to travel to another time zone (> 3 time zones) during the study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Arena Pharmaceuticals, Inc

    San Diego, California, 92121

Other trials in United States

About this study

Official title: A Randomized, Double-blind, Placebo-controlled Subjective Study to Assess the Efficacy of APD125 in Patients With Primary Insomnia Characterized by Difficulty Maintaining Sleep

This study is designed to compare 2 doses of APD125 (20 mg and 40 mg) with placebo in otherwise healthy adults with primary insomnia primarily with complaints of maintaining sleep. Participants will be required to maintain a daily sleep dairy for up to 3 weeks while on study.

Being tested
APD125, Placebo
Keywords
insomnia, sleep maintenance insomnia, sleep quality, non-restorative sleep, multiple awakenings
Medical subject headings
Sleep Initiation and Maintenance Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • APD125Drug

    soft gelatin capsule, 20 mg, daily dosing for up to 3 weeks

  • APD125Drug

    soft gelatin capsule, 40 mg, daily dosing for up to 3 weeks

  • PlaceboDrug

    soft gelatin capsule, daily dosing for up to 3 weeks

Study groups in NCT00664664
Study groupRoleWhat they receive
1ExperimentalAPD125 20 mg
Receives: Drug: APD125
2ExperimentalAPD125 40 mg
Receives: Drug: APD125
3Placebo comparatorMatching Placebo
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change from baseline in subjective number of awakenings after sleep onset (sNAASO)

    Measured: During and after 2 weeks of study drug

Secondary outcomes (4)
  1. Change from baseline in subjective total sleep time (sTST)

    Measured: During and after 2 weeks on study drug

  2. Change from baseline in subjective wake time after sleep onset (sWASO)

    Measured: During and after 2 weeks on study drug

  3. Change in subjective latency to sleep onset (sSLO)

    Measured: During and after 2 weeks on study drug

  4. Safety and tolerability as assessed by changes from baseline in adverse events, vital signs, 12-lead ECGs, physical examinations, and clinical laboratory values.

    Measured: During and after 2 weeks on study drug

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Apr 2008 (estimated)
  2. Study startApr 2008
  3. Primary completionOct 2008
  4. Study completionNov 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
744 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00664664
Sponsor's protocol ID
APD125-007
Status last verified
Dec 2020
First submitted
21 Apr 2008
Last updated
24 Dec 2020
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing APD125 in people with Primary Insomnia, run by Arena Pharmaceuticals at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Dec 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change from baseline in subjective number of awakenings after sleep onset (sNAASO) (time frame: During and after 2 weeks of study drug). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Dec 2020.

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