deltatrials
Recruiting OBSERVATIONAL NCT02784977

TURKAPNE - The Turkish Sleep Apnea Database: A National, Multicenter, Observational, Prospective Cohort Study (TURKAPNE)

Sponsor: Afyon Kocatepe University School of Medicine, Afyon, Turkey

Conditions Obstructive Sleep Apnea
Interventions Conservative treatment Intraoral device (IOD) Positive Airway Pressure (PAP) Uvuloplasty
Updated 25 times since 2017 Last updated: Oct 12, 2022 Started: Oct 3, 2017 Primary completion: Dec 31, 2024 Completion: Dec 31, 2027
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT02784977, this observational or N/A phase trial focuses on Obstructive Sleep Apnea and remains actively recruiting participants. Sponsored by Afyon Kocatepe University School of Medicine, Afyon, Turkey, it has been updated 25 times since 2017, reflecting substantial change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

~Jan 2017 – ~Mar 2017 · 59 days · monthly snapshot~Mar 2017 – ~May 2017 · 2 months · monthly snapshot~May 2017 – ~Jun 2017 · 31 days · monthly snapshot~Jun 2017 – ~Jul 2017 · 30 days · monthly snapshot~Jul 2017 – ~Sep 2017 · 2 months · monthly snapshot~Sep 2017 – ~Oct 2017 · 30 days · monthly snapshot~Oct 2017 – ~Feb 2018 · 4 months · monthly snapshot~Feb 2018 – ~Mar 2018 · 28 days · monthly snapshot~Mar 2018 – ~Apr 2018 · 31 days · monthly snapshot~Apr 2018 – ~May 2018 · 30 days · monthly snapshot~May 2018 – ~Jun 2018 · 31 days · monthly snapshot~Jun 2018 – ~May 2019 · 11 months · monthly snapshot~May 2019 – ~Mar 2020 · 10 months · monthly snapshot~Mar 2020 – ~Jan 2021 · 10 months · monthly snapshot~Jan 2021 – ~Oct 2021 · 9 months · monthly snapshot~Oct 2021 – ~Nov 2022 · 13 months · monthly snapshot~Nov 2022 – ~Feb 2023 · 3 months · monthly snapshot~Feb 2023 – ~Jul 2024 · 17 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Jan 2025 · 4 months · monthly snapshot~Jan 2025 – ~Sep 2025 · 8 months · monthly snapshot~Sep 2025 – ~Oct 2025 · 30 days · monthly snapshot~Oct 2025 – ~Dec 2025 · 2 months · monthly snapshot~Dec 2025 – ~Feb 2026 · 2 months · monthly snapshot~Feb 2026 – present · 5 months · monthly snapshot

Change History

25 versions recorded

  1. Feb 2026 — Present [monthly]

    Recruiting

  2. Dec 2025 — Feb 2026 [monthly]

    Recruiting

  3. Oct 2025 — Dec 2025 [monthly]

    Recruiting

  4. Sep 2025 — Oct 2025 [monthly]

    Recruiting

  5. Jan 2025 — Sep 2025 [monthly]

    Recruiting

▶ Show 20 earlier versions

  1. Sep 2024 — Jan 2025 [monthly]

    Recruiting

  2. Jul 2024 — Sep 2024 [monthly]

    Recruiting

  3. Feb 2023 — Jul 2024 [monthly]

    Recruiting

  4. Nov 2022 — Feb 2023 [monthly]

    Recruiting

  5. Oct 2021 — Nov 2022 [monthly]

    Recruiting

  6. Jan 2021 — Oct 2021 [monthly]

    Recruiting

  7. Mar 2020 — Jan 2021 [monthly]

    Recruiting

  8. May 2019 — Mar 2020 [monthly]

    Recruiting

  9. Jun 2018 — May 2019 [monthly]

    Recruiting

  10. May 2018 — Jun 2018 [monthly]

    Recruiting

  11. Apr 2018 — May 2018 [monthly]

    Recruiting

    Phase: NA → None

  12. Mar 2018 — Apr 2018 [monthly]

    Recruiting NA

  13. Feb 2018 — Mar 2018 [monthly]

    Recruiting NA

  14. Oct 2017 — Feb 2018 [monthly]

    Recruiting NA

    Status: Not Yet Recruiting → Recruiting

  15. Sep 2017 — Oct 2017 [monthly]

    Not Yet Recruiting NA

  16. Jul 2017 — Sep 2017 [monthly]

    Not Yet Recruiting NA

  17. Jun 2017 — Jul 2017 [monthly]

    Not Yet Recruiting NA

  18. May 2017 — Jun 2017 [monthly]

    Not Yet Recruiting NA

  19. Mar 2017 — May 2017 [monthly]

    Not Yet Recruiting NA

  20. Jan 2017 — Mar 2017 [monthly]

    Not Yet Recruiting NA

    First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Afyon Kocatepe University School of Medicine, Afyon, Turkey
  • Baskent University Ankara Hospital
  • Dicle University School of Medicine, Diyarbakir, Turkey
  • Diskapi Yildirim Beyazit Education and Research Hospital
  • Dokuz Eylul University
  • Ege University School of Medicine, Izmir, Turkey
  • Hitit University School of Medicine, Corum, Turkey
  • Istanbul Sureyyapasa Chest Diseases and Chest Surgery Training and Research Hospital
  • Istanbul University - Cerrahpasa
  • Kocaeli Education and Research Hospital, Kocaeli, Turkey
  • Koç University
  • Marmara University
  • Namik Kemal University School of Medicine, Tekirdag
  • Pamukkale University School of Medicine, Denizli, Turkey
  • Suleyman Demirel University School of Medicine, Isparta, Turkey
  • Trakya University
  • Uludag University
Data source: Koç University

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

Study Locations