NCT05824104

Brief Summary

This study aims to investigate the safety and efficacy of intermittent hypoxia treatment in patients with chronic cerebral hypoperfusion.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started May 2023

Shorter than P25 for not_applicable

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 28, 2023

Completed
24 days until next milestone

First Posted

Study publicly available on registry

April 21, 2023

Completed
19 days until next milestone

Study Start

First participant enrolled

May 10, 2023

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 10, 2023

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 10, 2023

Completed
Last Updated

April 25, 2023

Status Verified

April 1, 2023

Enrollment Period

4 months

First QC Date

March 28, 2023

Last Update Submit

April 24, 2023

Conditions

Outcome Measures

Primary Outcomes (2)

  • Incidence of adverse reactions

    Adverse reactions included headache, vomiting, diarrhea, fatigue, dizziness (according to the Lake Louise scoring system), and insomnia.

    After the 7-day treatment.

  • Incidence of adverse reactions

    Adverse reactions included headache, vomiting, diarrhea, fatigue, dizziness (according to the Lake Louise scoring system), and insomnia.

    Thirty days after the treatment.

Secondary Outcomes (5)

  • Tissue oxygen saturation

    Baseline, after the 7-day treatment, 30 days after the treatment.

  • Cerebral blood flow

    Baseline, after the 7-day treatment.

  • Neurobehavioral scale 1

    Baseline, after the 7-day treatment.

  • Blood pressure

    Baseline, after the 7-day treatment, 30 days after the treatment.

  • Neurobehavioral scale 2

    Baseline, after the 7-day treatment.

Study Arms (1)

Patients

EXPERIMENTAL

The intermittent hypoxia protocol refers to four cycles of 5 minutes hypoxia inhaling interval by 5 minutes normoxia, which is performed twice a day (at least 6 hours apart) in 7 days.

Other: Intermittent Hypoxia

Interventions

The intermittent hypoxia protocol refers to four cycles of 5 minutes hypoxia inhaling interval by 5 minutes normoxia, which is performed twice a day (at least 6 hours apart) in 7 days.

Patients

Eligibility Criteria

Age45 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subjects aged 45-70 years, BMI 18.5-24kg/m2, both sexes.
  • Subjects with risk factors of cerebrovascular disease, such as hypertension, diabetes, dyslipidemia, and so on, and the risk factors are well controlled.
  • Cerebral/carotid ultrasound showed mild stenosis of unilateral internal carotid artery (ICA) or middle cerebral artery (MCA) (\<50%) without stenosis of other major feeding arteries.
  • Subjects with the manifestations of chronic cerebral hypoperfusion, such as dizziness, head pain, memory loss, slow reaction, inattention, emotional instability, decreased ability to work, sleep disorders and mood disorders, the course of more than 3 months.
  • Subjects or their legally authorized representative can provide informed consent.

You may not qualify if:

  • Stroke onset in the past 3 months, other severe neurological diseases, such as epilepsy, intracranial infectious diseases or demyelination.
  • Uncontrolled hypertension (systolic blood pressure ≥200mmHg) with antihypertensive drugs before enrollment, other cardiovascular diseases.
  • History of pulmonary, hepatic, dermatologic, or hematologic diseases.
  • History of substance abuse.
  • Pregnancy, hypertension, diabetes mellitus, obesity, sleep apnea and neurological disorders.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

March 28, 2023

First Posted

April 21, 2023

Study Start

May 10, 2023

Primary Completion

September 10, 2023

Study Completion

October 10, 2023

Last Updated

April 25, 2023

Record last verified: 2023-04

Data Sharing

IPD Sharing
Will not share