NCT06713486

Brief Summary

The combination of COPD and obstructive sleep apnea (OSA) can lead to undesirable interactions with the treatment approach. The investigators know that continuous positive airway pressure (CPAP) can increase dynamic hyperinflation in COPD patients, and in mechanical ventilation, the increase in PEEP can worsen dynamic hyperinflation. On the other hand, the team know that the severity of COPD obstruction and hyperinflation alter sleep efficiency, with periods of wakefulness during sleep, and during these periods, the patient would not have upper airway obstruction, which could affect the therapy they are receiving in CPAP mode for OSA. Moreover, it was observed that with greater hyperinflation, the rate of obstructive events decreases, dynamically affecting the ventilatory situation with upper airway resistance. Recent studies have determined the safety and efficacy of auto-adjusting systems in the treatment of overlap syndrome, which could be more adaptable to the changing pulmonary mechanics of these patients. Aerobic capacity is a good predictor to the health status in these patients and the investigators know it is reduced in patients with AOS, where CPAP treatment according to studies improves the peak VO2. Therefore, the objective is to compare a ventilation system with fixed pressures established through polysomnography in patients with overlap syndrome and dynamic hyperinflation to a dynamic ventilation system using the fixed pressure limits typically established, based on their impact on the aerobic capacity (peak VO2) of these patients after 1 month of treatment.

Trial Health

63
Monitor

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
4mo left

Started Dec 2024

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

Study Progress82%
Dec 2024Sep 2026

First Submitted

Initial submission to the registry

November 22, 2024

Completed
9 days until next milestone

Study Start

First participant enrolled

December 1, 2024

Completed
2 days until next milestone

First Posted

Study publicly available on registry

December 3, 2024

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2026

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2026

Last Updated

December 3, 2024

Status Verified

November 1, 2024

Enrollment Period

1.5 years

First QC Date

November 22, 2024

Last Update Submit

November 27, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Peak VO2

    Peak VO2 as the primary variable obtained from cycle ergometry.

    0,29 and 57 days.

Secondary Outcomes (7)

  • VO2 max

    0,29 and 57 days.

  • Anaerobic threshold

    0,29 and 57 days.

  • VE/VCO2

    0,29 and 57 days.

  • BODE INDEX. (body mass index,)

    0,29 and 57 days.

  • BODE INDEX. ( air-flow obstruction)

    0,29 and 57 days.

  • +2 more secondary outcomes

Other Outcomes (8)

  • Epworth scale

    0,29 and 57 days.

  • Analytical parameters

    0,29 and 57 days.

  • Analytical parameters

    0,29 and 57 days.

  • +5 more other outcomes

Study Arms (2)

FIXED PRESSURE

EXPERIMENTAL

Home nocturnal therapy either at the fixed pressure obtained in the polysomnography for 28 days

Procedure: Dynamic pressure in Dreamstation AVAPS-AAM PhilipsRespironic® mode

B

ACTIVE COMPARATOR

Dynamic pressure in Dreamstation AVAPS-AAM PhilipsRespironic® mode for 28 days.

Procedure: Fixed pressure obtained in the polysomnography for 28 days

Interventions

home nocturnal therapy either at the fixed pressure obtained in the polysomnography for 28 days

B

dynamic pressure in Dreamstation AVAPS-AAM PhilipsRespironic® mode (program B) for 28 days, using the apnea threshold obtained in the titration as the maximum EPAP pressure and adjusting the support pressure for inferred Vt to 8 ml/kg of ideal body weight. After the first 28 days, a polysomnography will be performed under therapy with the device, and the next morning, cycle ergometry will be conducted.

FIXED PRESSURE

Eligibility Criteria

Age50 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Stability of at least 4 weeks without hospital admission.
  • Previously presented PCO2 \> 52.
  • Age between 50 and 80 years.
  • Agree to participate in the study and sign the informed consent.
  • Both sexes.

You may not qualify if:

  • Refusal to participate in the study.
  • Uncontrolled structural or coronary heart disease (no changes in medication in the last 15 days).
  • LVEF \< 45%.
  • Central sleep apnea syndrome (≥ 50% central events).
  • Uncontrolled pulmonary hypertension.
  • Inability to perform the tests.
  • Having had an exacerbation 4 weeks prior.
  • Severe psychiatric illness.
  • Cognitive impairment.
  • Not speaking Spanish.
  • Illiteracy.
  • Active smoker (or \< 6 months since quitting smoking).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Servicio de Neumología. Hospital Universitario Virgen de la Arrixaca.

Murcia, Murcia, 30120, Spain

Location

MeSH Terms

Conditions

Pulmonary Disease, Chronic Obstructive

Condition Hierarchy (Ancestors)

Lung Diseases, ObstructiveLung DiseasesRespiratory Tract DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Central Study Contacts

Herminia Buchelli Ramirez Servicio de Neumología. Hospital Universitario Virgen de la Ar, MD

CONTACT

Francisco José Ruiz López Servicio de Neumología. Hospital Universitario Virgen de la Ar, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 22, 2024

First Posted

December 3, 2024

Study Start

December 1, 2024

Primary Completion (Estimated)

June 1, 2026

Study Completion (Estimated)

September 1, 2026

Last Updated

December 3, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

Locations