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Sleep Apnea, ObstructivePhase 2NCT00620659

Treatment of Refractory Excessive Daytime Sleepiness in Patients With Obstructive Sleep Apnea/Hypopnea Syndrome (OSA/HS) Using Nasal Continuous Positive Airway Pressure (nCPAP) Therapy (0249-015)

A Phase 2 study testing Comparator: MK0249 and Comparator: modafinil in people with Sleep Apnea, Obstructive and Hypopnea Syndrome, run by Merck Sharp & Dohme LLC.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to determine the safety and efficacy of MK0249 in treating refractory excessive daytime sleepiness (EDS) in patients with Obstructive Sleep Apnea/Hypopnea Syndrome (OSA/HS) using nasal continuous positive airway pressure (nCPAP) therapy. Read more about this study

Who is it for?
Ages 18 to 64 years
What is being tested?
Comparator: MK0249 and Comparator: modafinil
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
125 participants
Where
No sites listed yet
Study dates
Feb 2008to Feb 2009
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 64 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Patient is male or female and is at least 18 years old and less than 65 years old
  • Patient must have a diagnosis of Obstructive Sleep Apnea/Hypopnea Syndrome
  • Patient has been using nCPAP treatment for at least 2 months prior to Visit 1
  • Patient is willing to stay at a sleep laboratory for 4 full days and nights for observation and assessments
  • Patient is willing to refrain from napping for the duration of the study

Who cannot join

  • Patient is pregnant, breastfeeding, or planning to become pregnant within the next 4 months
  • Patient is or has participated in a study with an investigational compound or device within 30 days of signing the informed consent
  • Patient has had asthma-related visit to the emergency room or hospitalization within 6 months of Visit 1
  • Patient has donated or received blood products within 8 weeks of signing consent or is planning on doing either for the duration of the study

About this study

Official title: Phase IIa, Randomized, Double-blind, Placebo-controlled, 3-period Crossover, Adaptive Dose Design, Clinical Trial to Evaluate Safety & Efficacy of MK0249 in Treating Refractory Excessive Daytime Sleepiness in Patients With Obstructive Sleep Apnea/Hypopnea Syndrome Appropriately Using nCPAP Therapy.

The purpose of this study is to determine the safety and efficacy of MK0249 in treating refractory excessive daytime sleepiness (EDS) in patients with Obstructive Sleep Apnea/Hypopnea Syndrome (OSA/HS) using nasal continuous positive airway pressure (nCPAP) therapy.

Being tested
Comparator: MK0249, Comparator: placebo, Comparator: modafinil
Medical subject headings
Sleep Apnea, Obstructive, Disorders of Excessive Somnolence

What participants receive

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

  • Comparator: MK0249Drug

    Patients will be assigned to receive MK0249 film coated tablet (FCT). The doses of MK0249 that are included for possible investigation (depending upon an adaptive allocation process) are 3 mg, 5 mg, 8 mg, 10 mg, and 12 mg. Study medication will be taken for 14 days, during each of the 3 treatment periods, by mouth (po) once a day (qd).

  • Comparator: placeboDrug

    Placebo; Patients will be assigned to receive placebo, across 3 treatment periods. Study medication will be taken for 14 days, during each of the 3 treatment periods, po qd.

  • Comparator: modafinilDrug

    Patients will be assigned to receive modafinil 200mg oral compressed tablet (OCT), across 3 treatment periods. Study medication will be taken for 14 days, during each of the 3 treatment periods, po qd.

Study groups in NCT00620659
Study groupRoleWhat they receive
1ExperimentalArm 1: Treatment period 1: MK0249; Treatment period 2: Placebo; Treatment period 3: modafinil
Receives: Drug: Comparator: MK0249; Drug: Comparator: placebo; Drug: Comparator: modafinil
2ExperimentalArm 2: Treatment period 1: Placebo; Treatment period 2: modafinil; Treatment period 3: MK0249
Receives: Drug: Comparator: MK0249; Drug: Comparator: placebo; Drug: Comparator: modafinil
3ExperimentalArm 3: Treatment period 1: modafinil; Treatment period 2: MK0249; Treatment period 3: Placebo
Receives: Drug: Comparator: MK0249; Drug: Comparator: placebo; Drug: Comparator: modafinil
4ExperimentalArm 4: Treatment period 1: MK0249; Treatment period 2: modafinil; Treatment period 3: Placebo
Receives: Drug: Comparator: MK0249; Drug: Comparator: placebo; Drug: Comparator: modafinil
5ExperimentalArm 5: Treatment period 1: Placebo; Treatment period 2: MK0249; Treatment period 3: modafinil
Receives: Drug: Comparator: MK0249; Drug: Comparator: placebo; Drug: Comparator: modafinil
6ExperimentalArm 6: Treatment period 1: modafinil; Treatment period 2: Placebo; Treatment period 3: MK0249
Receives: Drug: Comparator: MK0249; Drug: Comparator: placebo; Drug: Comparator: modafinil

What is being measured

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

  1. Mean of Average Maintenance of Wakefulness Test Early for The Mode Dose of MK0249 Versus Placebo

    The Maintenance of Wakefulness Test (MWT) is an objective assessment of sleepiness that measures the ability of a patient to remain awake. The primary endpoint was the mean of sleep latency (average of the first 4 MWTs which were at 0900, 1100, 1300, and 1500), where latency for each MWT was defined as the time to onset of the first 16 continuous seconds of any stage of sleep; if no sleep was observed according to these rules, then latency was defined as 30 minutes. The comparison was for the mode dose of MK0249 versus placebo.

    Measured: At Week 2

Secondary outcomes (4)
  1. Mean of Average Maintenance of Wakefulness Test Early for the Mode Dose of MK0249 Versus Modafinil

    The Maintenance of Wakefulness Test (MWT) is an objective assessment of sleepiness that measures the ability of a patient to remain awake. The primary endpoint was the mean of sleep latency (average of the first 4 MWTs which were at 0900, 1100, 1300, and 1500), where latency for each MWT was defined as the time to onset of the first 16 continuous seconds of any stage of sleep; if no sleep was observed according to these rules, then latency was defined as 30 minutes. The comparison was for the mode dose of MK0249 versus modafinil.

    Measured: At Week 2

  2. Mean of Average Maintenance of Wakefulness Test Early for Top 2 Doses Pooled of MK0249 Versus Modafinil

    The Maintenance of Wakefulness Test (MWT) is an objective assessment of sleepiness that measures the ability of a patient to remain awake. The primary endpoint was the mean of sleep latency (average of the first 4 MWTs which were at 0900, 1100, 1300, and 1500), where latency for each MWT was defined as the time to onset of the first 16 continuous seconds of any stage of sleep; if no sleep was observed according to these rules, then latency was defined as 30 minutes. The comparison was for the top 2 doses pooled of MK0249 versus modafinil.

    Measured: At Week 2

  3. Clinical Global Impressions Scale of Severity Score as it Relates to Excessive Daytime Sleepiness (CGIS-EDS) for the Mode Dose of MK0249 Versus Placebo

    Clinical Global Impressions Scale of Severity (CGI-S) is a subscale of the CGI which is a standard psychometric scale used to demonstrate changes and improvements in illness. CGI-S consists of a 7-point scale rated from 1 to 7. The investigator or sponsor-approved clinician judged how ill the patient was with respect to Excessive Daytime Sleepiness (EDS) at the time of the CGI-S rating (CGIS-EDS), with higher scores indicating more severe illness.

    Measured: At Week 2

  4. Epworth Sleepiness Scale (ESS) Score for the Mode Dose of MK0249 Versus Placebo

    The Epworth Sleepiness Scale (ESS) is a self-administered questionnaire that provides subjective reports that equate with sleep propensity, not with 'subjective sleepiness'. Having a high sleep propensity means having a history of dozing in situations that have a relatively low soporific nature, in which normal subjects seldom doze. The ESS consists of eight items, which are rated from 0 ("would never dose") to 3 ("high chance of dozing"). The ESS score is the total score of the 8 individual items; this total score ranges from 0 to 24 (higher total score is worse).

    Measured: At Week 2

Timeline

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

  1. First posted21 Feb 2008 (estimated)
  2. Study startFeb 2008
  3. Primary completionFeb 2009
  4. Study completionFeb 2009

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
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
125 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00620659
Sponsor's protocol ID
0249-015
Other IDs
2007_602
Status last verified
Apr 2015
First submitted
10 Jan 2008
Last updated
13 May 2015

Publications

  • Herring WJ, Liu K, Hutzelmann J, Snavely D, Snyder E, Ceesay P, Lines C, Michelson D, Roth T. Alertness and psychomotor performance effects of the histamine-3 inverse agonist MK-0249 in obstructive sleep apnea patients on continuous positive airway pressure therapy with excessive daytime sleepiness: a randomized adaptive crossover study. Sleep Med. 2013 Oct;14(10):955-63. doi: 10.1016/j.sleep.2013.04.010. Epub 2013 Aug 3.

    PubMed 23920422

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Comparator: MK0249 and Comparator: modafinil in people with Sleep Apnea, Obstructive and Hypopnea Syndrome, run by Merck Sharp & Dohme LLC.

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 5 inclusion and 4 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: stopped early, as of the sponsor's last update on 13 May 2015. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. 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?

Yes. Results are posted in the registry (first posted 23 Feb 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Mean of Average Maintenance of Wakefulness Test Early for The Mode Dose of MK0249 Versus Placebo (time frame: At Week 2). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00620659, which also lists 1 linked publication.

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 13 May 2015.

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