NCT03049306

Brief Summary

The primary objective of this study is to test whether a beta blocker, propranolol, lowers the overnight heart rate sleep in obstructive sleep apnea (OSA) during CPAP withdrawal. The secondary objectives are to test whether propranolol influences sleep architecture, morning blood pressure, and vascular function including reactive hyperemia index (RHI) and a marker of arterial stiffness, augmentation index (AIX).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
24

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Feb 2017

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 6, 2016

Completed
2 months until next milestone

First Posted

Study publicly available on registry

February 10, 2017

Completed
5 days until next milestone

Study Start

First participant enrolled

February 15, 2017

Completed
7.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2024

Completed
4 months until next milestone

Results Posted

Study results publicly available

September 5, 2024

Completed
Last Updated

September 5, 2024

Status Verified

August 1, 2024

Enrollment Period

7.2 years

First QC Date

December 6, 2016

Results QC Date

July 16, 2024

Last Update Submit

August 14, 2024

Conditions

Keywords

Obstructive sleep apneaCPAPPropranololMetabolism

Outcome Measures

Primary Outcomes (1)

  • Nocturnal Heart Rate (Beats/Min, BPM)

    Average overnight heart rate (10:30 PM to 06:30 AM)

    1 Night (approximately 4 hours post administration for each intervention), from 10:30 PM to 06:30 AM

Secondary Outcomes (4)

  • Reactive Hyperemia Index (RHI)

    The morning after each intervention at 7:00 AM (approximately 11.5 hours post administration for each intervention)

  • Systolic Blood Pressure (mmHg)

    The morning after each intervention at 7:00 AM (approximately 11.5 hours post administration for each intervention)

  • Diastolic Blood Pressure (mmHg)

    The morning after each intervention at 7:00 AM (approximately 11.5 hours post administration for each intervention)

  • Augmentation Index (%)

    The morning after each intervention at 7:00 AM (approximately 11.5 hours post administration for each intervention)

Study Arms (2)

Placebo Oral Tablet

PLACEBO COMPARATOR

Subjects will be admitted to the clinical research unit. On the CPAP withdrawal nights, placebo of propranolol LA (Inderal ® LA) 80 mg will be administered orally at 6:30 PM, after dinner. Blood pressure will be measured before administration, at 10:30 PM, and 6:30 AM. They will sleep from 10:30 PM to 6:30 AM. During sleep blood will be sampled from an indwelling IV for measurement of FFA, glucose, insulin, and triglycerides. This arm will is crossed-over with active drug 1 week before or after this study night.

Drug: Propranolol Oral TabletDrug: Placebo Oral Tablet

Propranolol Oral Tablet

ACTIVE COMPARATOR

Subjects will be admitted to the clinical research unit. On the CPAP withdrawal nights, Propranolol LA (Inderal ® LA) 80 mg will be administered orally before sleep, at 6:30 PM, after dinner. Blood pressure will be measured before administration, at 10:30 PM, and 6:30 AM. They will sleep from 10:30 Pm to 6:30 AM. During sleep blood will be sampled from an indwelling IV for measurement of FFA, glucose, insulin, and triglycerides. This arm will be crossed-over to placebo 1 week later. This arm will is crossed-over with active drug 1 week before or after this study night.

Drug: Propranolol Oral TabletDrug: Placebo Oral Tablet

Interventions

Patients will receive Propranolol LA 80 mg PO at 7 PM before sleep (on CPAP withdrawal nights only)

Also known as: beta blocker
Placebo Oral TabletPropranolol Oral Tablet

Patients will receive Placebo tablet at 7 PM before sleep (on CPAP withdrawal nights only)

Also known as: placebo
Placebo Oral TabletPropranolol Oral Tablet

Eligibility Criteria

Age20 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • History of OSA (AHI\>20, \>50% events obstructive)
  • Accustomed to CPAP use, and willing to discontinue CPAP temporarily for the study.
  • If the participant has already completed "Metabolic Impact of Intermittent CPAP" (NA\_00086830), they must have exhibited a \>10% increase in nocturnal FFA or glucose during CPAP

You may not qualify if:

  • Cardiovascular risks
  • Decompensated congestive heart failure
  • Atrial fibrillation, sick sinus syndrome, 2nd or 3rd degree heart block, pacemaker implantation, Wolff-Parkinson-White Syndrome (if not known, will check on a screening EKG)
  • Uncontrolled hypertension \> 170/110
  • History of postural hypotension.
  • Resting systolic pressure \<90 or heart rate \< 50 on screening visit
  • Drug interactions - currently taking any of the following drugs. (Subjects on these medications are excluded from participation and will not have the drug in question discontinued for the purposes of participation in the study. )
  • Calcium channel blockers that reduce heart rate (diltiazem, verapamil, fendiline, gallopamil)
  • Sympatholytic drugs: any other beta blocker; clonidine, terazosin or doxazosin; reserpine
  • Anti-arrhythmic drugs: (e.g. amiodarone, sotalol, digoxin, quinidine, lidocaine, propafenone)
  • Coumadin (propranolol may prolong INR)
  • Drugs that Inhibit CYP2D6, CYP1A2, or CYP2C19: amiodarone, ciprofloxacin, cimetidine, delavirdine, fluconazole, fluoxetine, fluvoxamine, imipramine, isoniazid, paroxetine, quinidine, ritonavir, rizatriptan, teniposide, theophylline, tolbutamide, zileuton, zolmitriptan
  • Drugs that increase hepatic metabolism of propranolol: rifampin, ethanol, phenytoin, and phenobarbital
  • Neuroleptics/anxiolytics: (thioridazine, chlorpromazine - may increase propranolol level), haloperidol, valium
  • Illicit drugs such as cocaine or amphetamines.
  • +13 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Johns Hopkins Bayview Medical Center

Baltimore, Maryland, 21224, United States

Location

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Interventions

PropranololAdrenergic beta-Antagonists

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Intervention Hierarchy (Ancestors)

PhenoxypropanolaminesPropanolaminesAmino AlcoholsAlcoholsOrganic ChemicalsPropanolsAminesNaphthalenesPolycyclic Aromatic HydrocarbonsHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsPolycyclic CompoundsAdrenergic AntagonistsAdrenergic AgentsNeurotransmitter AgentsMolecular Mechanisms of Pharmacological ActionPharmacologic ActionsChemical Actions and UsesPhysiological Effects of Drugs

Results Point of Contact

Title
Jonathan Jun
Organization
Johns Hopkins University School of Medicine

Study Officials

  • Jonathan C Jun, MD

    Johns Hopkins University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 6, 2016

First Posted

February 10, 2017

Study Start

February 15, 2017

Primary Completion

May 1, 2024

Study Completion

May 1, 2024

Last Updated

September 5, 2024

Results First Posted

September 5, 2024

Record last verified: 2024-08

Data Sharing

IPD Sharing
Will not share

Locations