NCT06172998

Brief Summary

The nocturnal short-term BPV induced by sleep-breathing events is affected by many factors. The purpose of the study is as follows: (1) to explore the relationship between nocturnal short-term BPV and vascular endothelial function and sympathetic activity in patients with OSA respectively, (2) to explore which play the key role in BP fluctuation, (3) how to prevent the frequent BP fluctuation and arrive at a safe point.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
350

participants targeted

Target at P75+ for early_phase_1

Timeline
Completed

Started Apr 2022

Typical duration for early_phase_1

Geographic Reach
1 country

1 active site

Status
unknown

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

Study Start

First participant enrolled

April 1, 2022

Completed
1.7 years until next milestone

First Submitted

Initial submission to the registry

November 26, 2023

Completed
19 days until next milestone

First Posted

Study publicly available on registry

December 15, 2023

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2024

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2024

Completed
Last Updated

December 15, 2023

Status Verified

December 1, 2023

Enrollment Period

2 years

First QC Date

November 26, 2023

Last Update Submit

December 14, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of Participants with high nocturnal short-term BPV will change

    one night

Study Arms (3)

healthy subject

NO INTERVENTION

low BPV group

NO INTERVENTION

high BPV group

EXPERIMENTAL
Drug: Phentolamine Injection

Interventions

Under patient safety, Phentolamine will be pumped into the OSA patients equipped with PSG and ECG monitoring in a safe dose to prevent sympathetic overactivity. Under patient safety, Nitroglycerin will be pumped into the OSA patients equipped with PSG and ECG monitoring in a safe dose to prevent endothelial dysfunction.

Also known as: Nitroglycerin
high BPV group

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • medium to severe OSA (apnea-hypopnea index, AHI≥15 events/h) and patients without OSA (AHI\<5 events/h)
  • age from 18 to 65 years old.

You may not qualify if:

  • combined with other sleep disorders
  • patients with comorbidities, such as hypertension, diabetes, cardiovascular diseases, and cerebrovascular diseases etc
  • conditions that potentially affect the accuracy of BPV and endothelial function
  • ever-received the treatment of constructive positive airway pressure (CPAP)
  • who refuse to participate in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Jing Xu

Huai'an, Jiangsu, 223300, China

RECRUITING

Related Publications (17)

  • Torres G, Sanchez-de-la-Torre M, Barbe F. Relationship Between OSA and Hypertension. Chest. 2015 Sep;148(3):824-832. doi: 10.1378/chest.15-0136.

    PMID: 25879807BACKGROUND
  • Xu J, Ding N, Zhang X, Wang N, Sun B, Zhang R, Xie X, Wan Z, Gu Y, Zhang S, Hong Y, Huang M, Meng Z. Nocturnal blood pressure fluctuation and associated influential factors in severe obstructive sleep apnea patients with hypertension. Sleep Breath. 2018 Dec;22(4):1045-1052. doi: 10.1007/s11325-018-1634-6. Epub 2018 Mar 9.

    PMID: 29524090BACKGROUND
  • Sun B, Ma Q, Shen J, Meng Z, Xu J. Up-to-date advance in the relationship between OSA and stroke: a narrative review. Sleep Breath. 2024 Mar;28(1):53-60. doi: 10.1007/s11325-023-02904-2. Epub 2023 Aug 26.

    PMID: 37632670BACKGROUND
  • Xu J, Ding N, Chen L, Zhang Y, Huang M, Wang Y, Meng Z, Zhang X. Inducers of post-apneic blood pressure fluctuation monitored by pulse transfer time measurement in obstructive sleep apnea varied with syndrome severity. Sleep Breath. 2019 Sep;23(3):769-776. doi: 10.1007/s11325-018-1770-z. Epub 2019 Jan 12.

    PMID: 30637570BACKGROUND
  • Schutte AE, Kollias A, Stergiou GS. Blood pressure and its variability: classic and novel measurement techniques. Nat Rev Cardiol. 2022 Oct;19(10):643-654. doi: 10.1038/s41569-022-00690-0. Epub 2022 Apr 19.

    PMID: 35440738BACKGROUND
  • Sinski M, Lewandowski J, Przybylski J, Bidiuk J, Abramczyk P, Ciarka A, Gaciong Z. Tonic activity of carotid body chemoreceptors contributes to the increased sympathetic drive in essential hypertension. Hypertens Res. 2012 May;35(5):487-91. doi: 10.1038/hr.2011.209. Epub 2011 Dec 8.

    PMID: 22158114BACKGROUND
  • Smith RP, Veale D, Pepin JL, Levy PA. Obstructive sleep apnoea and the autonomic nervous system. Sleep Med Rev. 1998 May;2(2):69-92. doi: 10.1016/s1087-0792(98)90001-6.

    PMID: 15310503BACKGROUND
  • Narkiewicz K, van de Borne PJ, Montano N, Dyken ME, Phillips BG, Somers VK. Contribution of tonic chemoreflex activation to sympathetic activity and blood pressure in patients with obstructive sleep apnea. Circulation. 1998 Mar 17;97(10):943-5. doi: 10.1161/01.cir.97.10.943.

    PMID: 9529260BACKGROUND
  • Narkiewicz K, van de Borne PJ, Pesek CA, Dyken ME, Montano N, Somers VK. Selective potentiation of peripheral chemoreflex sensitivity in obstructive sleep apnea. Circulation. 1999 Mar 9;99(9):1183-9. doi: 10.1161/01.cir.99.9.1183.

    PMID: 10069786BACKGROUND
  • Tobaldini E, Costantino G, Solbiati M, Cogliati C, Kara T, Nobili L, Montano N. Sleep, sleep deprivation, autonomic nervous system and cardiovascular diseases. Neurosci Biobehav Rev. 2017 Mar;74(Pt B):321-329. doi: 10.1016/j.neubiorev.2016.07.004. Epub 2016 Jul 7.

    PMID: 27397854BACKGROUND
  • Kim YS, Kim SY, Park DY, Wu HW, Hwang GS, Kim HJ. Clinical Implication of Heart Rate Variability in Obstructive Sleep Apnea Syndrome Patients. J Craniofac Surg. 2015 Jul;26(5):1592-5. doi: 10.1097/SCS.0000000000001782.

    PMID: 26114507BACKGROUND
  • Pumprla J, Howorka K, Groves D, Chester M, Nolan J. Functional assessment of heart rate variability: physiological basis and practical applications. Int J Cardiol. 2002 Jul;84(1):1-14. doi: 10.1016/s0167-5273(02)00057-8.

    PMID: 12104056BACKGROUND
  • Rajendra Acharya U, Paul Joseph K, Kannathal N, Lim CM, Suri JS. Heart rate variability: a review. Med Biol Eng Comput. 2006 Dec;44(12):1031-51. doi: 10.1007/s11517-006-0119-0. Epub 2006 Nov 17.

    PMID: 17111118BACKGROUND
  • van der Steen MS, Lenders JW, Graafsma SJ, den Arend J, Thien T. Reproducibility of ambulatory blood pressure monitoring in daily practice. J Hum Hypertens. 1999 May;13(5):303-8. doi: 10.1038/sj.jhh.1000808.

    PMID: 10376847BACKGROUND
  • Gesche H, Grosskurth D, Kuchler G, Patzak A. Continuous blood pressure measurement by using the pulse transit time: comparison to a cuff-based method. Eur J Appl Physiol. 2012 Jan;112(1):309-15. doi: 10.1007/s00421-011-1983-3. Epub 2011 May 10.

    PMID: 21556814BACKGROUND
  • Ramaekers D, Beckers F, Demeulemeester H, Aubert AE. Cardiovascular autonomic function in conscious rats: a novel approach to facilitate stationary conditions. Ann Noninvasive Electrocardiol. 2002 Oct;7(4):307-18. doi: 10.1111/j.1542-474x.2002.tb00179.x.

    PMID: 12431308BACKGROUND
  • Meglic B, Danieli A. Glyceryl trinitrate-induced blood pressure variability decrease during head-up tilt test predicts vasovagal response. Blood Press Monit. 2023 Oct 1;28(5):236-243. doi: 10.1097/MBP.0000000000000653. Epub 2023 Jun 19.

    PMID: 37334541BACKGROUND

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Interventions

PhentolamineNitroglycerin

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

ImidazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsNitro CompoundsOrganic Chemicals

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SEQUENTIAL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
professor

Study Record Dates

First Submitted

November 26, 2023

First Posted

December 15, 2023

Study Start

April 1, 2022

Primary Completion

April 1, 2024

Study Completion

June 1, 2024

Last Updated

December 15, 2023

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share

Locations