deltatrials
Completed OBSERVATIONAL NCT02017288

Study to Evaluate the Natural History of Head and Neck Cancer Precursors in Taiwan

Natural History Of Oral Cancer Precursor Lesions: A Prospective Cohort Study

Sponsor: Academia Sinica, Taiwan

Conditions Head and Neck Neoplasms
Updated 25 times since 2017 Last updated: Feb 4, 2021 Started: Nov 18, 2013 Primary completion: Feb 4, 2021 Completion: Feb 4, 2021
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A observational or N/A phase clinical study on Head and Neck Neoplasms, this trial is completed. The trial is conducted by Academia Sinica, Taiwan and has accumulated 25 data snapshots since 2013. Oncology trials at this stage typically focus on safety, tolerability, and early efficacy signals.

Status Flow

~Jan 2017 – ~Mar 2018 · 14 months · 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 – ~Jul 2018 · 30 days · monthly snapshot~Jul 2018 – ~Aug 2018 · 31 days · monthly snapshot~Aug 2018 – ~Sep 2018 · 31 days · monthly snapshot~Sep 2018 – ~Mar 2019 · 6 months · monthly snapshot~Mar 2019 – ~Apr 2019 · 31 days · monthly snapshot~Apr 2019 – ~May 2019 · 30 days · monthly snapshot~May 2019 – ~Jun 2019 · 31 days · monthly snapshot~Jun 2019 – ~Nov 2019 · 5 months · monthly snapshot~Nov 2019 – ~Dec 2019 · 30 days · monthly snapshot~Dec 2019 – ~Mar 2020 · 3 months · monthly snapshot~Mar 2020 – ~Apr 2020 · 31 days · monthly snapshot~Apr 2020 – ~May 2020 · 30 days · monthly snapshot~May 2020 – ~Sep 2020 · 4 months · monthly snapshot~Sep 2020 – ~Oct 2020 · 30 days · monthly snapshot~Oct 2020 – ~Nov 2020 · 31 days · monthly snapshot~Nov 2020 – ~Jan 2021 · 2 months · monthly snapshot~Jan 2021 – ~Mar 2021 · 59 days · monthly snapshot~Mar 2021 – ~Jul 2024 · 40 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshot~Sep 2025 – present · 10 months · monthly snapshot

Change History

25 versions recorded

  1. Sep 2025 — Present [monthly]

    Completed

  2. Sep 2024 — Sep 2025 [monthly]

    Completed

  3. Jul 2024 — Sep 2024 [monthly]

    Completed

  4. Mar 2021 — Jul 2024 [monthly]

    Completed

    Status: Recruiting → Completed

  5. Jan 2021 — Mar 2021 [monthly]

    Recruiting

▶ Show 20 earlier versions

  1. Nov 2020 — Jan 2021 [monthly]

    Recruiting

  2. Oct 2020 — Nov 2020 [monthly]

    Recruiting

  3. Sep 2020 — Oct 2020 [monthly]

    Recruiting

  4. May 2020 — Sep 2020 [monthly]

    Recruiting

  5. Apr 2020 — May 2020 [monthly]

    Recruiting

  6. Mar 2020 — Apr 2020 [monthly]

    Recruiting

  7. Dec 2019 — Mar 2020 [monthly]

    Recruiting

  8. Nov 2019 — Dec 2019 [monthly]

    Recruiting

  9. Jun 2019 — Nov 2019 [monthly]

    Recruiting

  10. May 2019 — Jun 2019 [monthly]

    Recruiting

  11. Apr 2019 — May 2019 [monthly]

    Recruiting

  12. Mar 2019 — Apr 2019 [monthly]

    Recruiting

  13. Sep 2018 — Mar 2019 [monthly]

    Recruiting

  14. Aug 2018 — Sep 2018 [monthly]

    Recruiting

  15. Jul 2018 — Aug 2018 [monthly]

    Recruiting

  16. Jun 2018 — Jul 2018 [monthly]

    Recruiting

  17. May 2018 — Jun 2018 [monthly]

    Recruiting

  18. Apr 2018 — May 2018 [monthly]

    Recruiting

    Phase: NA → None

  19. Mar 2018 — Apr 2018 [monthly]

    Recruiting NA

  20. Jan 2017 — Mar 2018 [monthly]

    Recruiting NA

    First recorded

Nov 2013

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Academia Sinica, Taiwan
  • China Medical University, China
  • National Cancer Institute (NCI)
  • National Taiwan University
Data source: National Institutes of Health Clinical Center (CC)

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

Study Locations