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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT03892772
Registration number
NCT03892772
Ethics application status
Date submitted
26/03/2019
Date registered
27/03/2019
Titles & IDs
Public title
Combination Pharmacological Interventions for Multiple Mechanisms of Obstructive Sleep Apnea
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Scientific title
Combination Pharmacological Interventions for Multiple Mechanisms of Obstructive Sleep Apnea
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Secondary ID [1]
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2019P000421
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Universal Trial Number (UTN)
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Trial acronym
ComboPlus
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Sleep Apnea
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Condition category
Condition code
Respiratory
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Sleep apnoea
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - SAS0421a
Treatment: Drugs - SAS0421b
Treatment: Drugs - SAS0421c
Treatment: Drugs - placebo
Experimental: SAS0421a, SAS0421b and SAS0421c - Participants will take SAS0421a, SAS0421b and SAS0421c for 3 days. Half doses will be given on the first night.
Active comparator: SAS0421a and SAS0421b - Participants will take SAS0421a and SAS0421b for 3 days. Half doses will be given on the first night.
Active comparator: SAS0421c - Participants will take SAS0421c for 3 days. Half doses will be given on the first night.
Placebo comparator: Placebo - Participants will take placebos for 3 days.
Treatment: Drugs: SAS0421a
treatment will be given for 3 days
Treatment: Drugs: SAS0421b
treatment will be given for 3 days
Treatment: Drugs: SAS0421c
treatment will be given for 3 days
Treatment: Drugs: placebo
placebo will be given for 3 days
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Apnea-hypopnea index [AHI]
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Assessment method [1]
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Apneas and hypopneas per hour (3% desat and/or arousal), % change from baseline
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Timepoint [1]
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3 days
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Secondary outcome [1]
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Hypoxic Burden
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Assessment method [1]
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Desaturation area under curve × event frequency
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Timepoint [1]
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3 days
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Secondary outcome [2]
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Arousal Index
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Assessment method [2]
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Number of arousals per hour (\>=3-sec), % change from baseline
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Timepoint [2]
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3 days
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Secondary outcome [3]
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Visual Analog Scale for Sleep Quality
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Assessment method [3]
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Sleep Quality 0-10 scale, 0 worst sleep quality, 10 best sleep quality
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Timepoint [3]
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3 days
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Secondary outcome [4]
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Visual Analog Scale for Waking Unrefreshed
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Assessment method [4]
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Waking Unrefreshed 0-10 scale, 0 extremely refreshed, 10 extremely unrefreshed
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Timepoint [4]
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3 days
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Eligibility
Key inclusion criteria
Inclusion criteria:
* Ages 18 - 79 years
* Suspected or diagnosed OSA
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Minimum age
18
Years
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Maximum age
79
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Exclusion criteria:
* Any uncontrolled medical condition
* Current use of the medications under investigation
* Use of medications expected to stimulate or depress respiration (including opioids, barbiturates, doxapram, almitrine, theophylline, 4-hydroxybutanoic acid).
* Current use of hypnotic medications (trazodone, eszopiclone, benzodiazepines).
* Current use of SNRIs/SSRIs or anticholinergic medications.
* Conditions likely to affect obstructive sleep apnea physiology: neuromuscular disease or other major neurological disorder, heart failure (also below), or any other unstable major medical condition.
* Respiratory disorders other than sleep disordered breathing:
chronic hypoventilation/hypoxemia (awake SaO2 < 92% by oximetry) due to chronic obstructive pulmonary disease or other respiratory conditions.
* Other sleep disorders: periodic limb movements (periodic limb movement arousal index > 10/hr), narcolepsy, or parasomnias.
* Contraindications for SAS0421a and SAS0421b, including:
* hypersensitivity to SAS0421a and SAS0421b (angioedema or urticaria)
* pheochromocytoma
* use of monoamine oxidase inhibitors
* benign prostatic hypertrophy, urinary retention
* untreated narrow angle glaucoma
* bipolar disorder, mania, psychosis
* history of major depressive disorder (age<24).
* history of attempted suicide or suicidal ideation within one year prior to screening
* clinically significant constipation, gastric retention
* pre-existing seizure disorders
* clinically-significant kidney disorders (eGFR<60 ml/min/1.73m2)
* clinically-significant liver disorders
* clinically-significant cardiovascular conditions
* severe hypertension (SBP>180 mmHg or DBP>110 mmHg measured at baseline)
* cardiomyopathy (LVEF<50%) or heart failure
* advanced atherosclerosis
* history of cerebrovascular events
* history of cardiac arrhythmias e.g., atrial fibrillation, QT prolongation
* other serious cardiac conditions that would raise the consequences of an increase in blood pressure or heart rate
* myasthenia gravis
* pregnancy/breast-feeding
* Additional contraindications for SAS0421c, including:
* Use more than 500 mg/day of Aspirin
* Allergies to this drug class
* Adrenocortical insufficiency
* Low sodium or potassium
* hyperchloremic acidosis
* Claustrophobia
* Pregnancy or nursing
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Crossover
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Other design features
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Phase
Phase 1
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
14/01/2019
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
3/07/2021
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Sample size
Target
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Accrual to date
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Final
23
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Recruitment in Australia
Recruitment state(s)
VIC
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Recruitment hospital [1]
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Monash University - Clayton
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Recruitment postcode(s) [1]
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3168 - Clayton
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Recruitment outside Australia
Country [1]
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United States of America
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State/province [1]
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Massachusetts
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Funding & Sponsors
Primary sponsor type
Other
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Name
Brigham and Women's Hospital
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Address
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Country
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Other collaborator category [1]
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Commercial sector/industry
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Name [1]
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Apnimed
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Address [1]
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Country [1]
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Ethics approval
Ethics application status
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Summary
Brief summary
Currently, there is no pharmacological intervention for OSA that targets multiple pathophysiological deficits in combination. Here the investigators study the effect on sleep apnea severity of combinations of pharmacological agents that stimulate the pharyngeal muscles, stabilize ventilatory control, and increase the arousal threshold.
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Trial website
https://clinicaltrials.gov/study/NCT03892772
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Scott A Sands, PhD
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Address
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Brigham and Women's Hospital
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
Yes
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What data in particular will be shared?
Will IPD be available? Yes What data will be shared? All IPD collected during the study, after deidentification.
When will data be available? Immediately after publication. No end date. With whom? Researchers who provide a methodologically sound proposal. For what types of analyses? Any purpose.
Supporting document/s available: Study protocol, Statistical analysis plan (SAP), Informed consent form (ICF), Clinical study report (CSR)
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When will data be available (start and end dates)?
Immediately after publication. No end date.
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Available to whom?
1-page proposals should be directed to Dr. Scott Sands (
[email protected]
). To gain access, requestors will be asked to sign a data use agreement.
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Available for what types of analyses?
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How or where can data be obtained?
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT03892772