Recruiting NA INTERVENTIONAL 3-arm NCT04190953

Upper Airway's Pressure Drop Analyses After Mandibular Advancement and Maxillary Expansion

Skeletal, Dental and Upper Airway Changes in Skeletal Class II Division 1 Patients With the Constricted Maxilla (8-14 Years Old) Treated With Twin Block and Hyrax, Evaluated Through Pressure Drop Experimental Analysis.

Sponsor: University of Alberta

Conditions Airway Obstruction, Nasal Apnea Mandible Small Maxillary Hypoplasia

Interventions Hyrax then Twin block Twin block then Hyrax

Updated 11 times since 2020 Last updated: Mar 4, 2025 Started: Feb 18, 2020 Primary completion: Feb 1, 2026 Completion: Feb 1, 2026

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A NA clinical study on Airway Obstruction, Nasal and Apnea, this trial is actively recruiting participants. The trial is conducted by University of Alberta and has accumulated 11 data snapshots since 2020. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.

Status Flow

Change History

11 versions recorded

Apr 2025 — Present [monthly]

Recruiting NA
Sep 2024 — Apr 2025 [monthly]

Recruiting NA
Jul 2024 — Sep 2024 [monthly]

Recruiting NA
Apr 2024 — Jul 2024 [monthly]

Recruiting NA
Sep 2023 — Apr 2024 [monthly]

Recruiting NA

▶ Show 6 earlier versions

Jun 2023 — Sep 2023 [monthly]

Recruiting NA
Jul 2022 — Jun 2023 [monthly]

Recruiting NA
Jun 2021 — Jul 2022 [monthly]

Recruiting NA
Jan 2021 — Jun 2021 [monthly]

Recruiting NA
Apr 2020 — Jan 2021 [monthly]

Recruiting NA

Status: Not Yet Recruiting → Recruiting
Jan 2020 — Apr 2020 [monthly]

Not Yet Recruiting NA

First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

University of Alberta

Data source: University of Alberta

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Edmonton, Canada