deltatrials
Recruiting OBSERVATIONAL NCT02530983

Mayo Clinic Upper Digestive Disease Survey (UDD)

Sponsor: Mayo Clinic

Updated 14 times since 2017 Last updated: Apr 9, 2025 Started: Aug 31, 2015 Primary completion: Dec 31, 2025 Completion: Dec 31, 2025
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This observational or N/A phase trial investigates Abnormalities, Digestive System and Cancer of Esophagus and is currently actively recruiting participants. Mayo Clinic leads this study, which shows 14 recorded versions since 2015 — indicating substantial longitudinal coverage. As an oncology study, it adds to the longitudinal record of treatment development for this indication.

Status Flow

~Jan 2017 – ~Apr 2018 · 15 months · monthly snapshot~Apr 2018 – ~Jun 2018 · 2 months · monthly snapshot~Jun 2018 – ~Feb 2019 · 8 months · monthly snapshot~Feb 2019 – ~Nov 2019 · 9 months · monthly snapshot~Nov 2019 – ~Oct 2020 · 11 months · monthly snapshot~Oct 2020 – ~Jan 2021 · 3 months · monthly snapshot~Jan 2021 – ~Oct 2021 · 9 months · monthly snapshot~Oct 2021 – ~Oct 2022 · 12 months · monthly snapshot~Oct 2022 – ~Oct 2023 · 12 months · monthly snapshot~Oct 2023 – ~May 2024 · 7 months · monthly snapshot~May 2024 – ~Jul 2024 · 2 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~May 2025 · 8 months · monthly snapshot~May 2025 – present · 16 months · monthly snapshot

Change History

14 versions recorded
  1. May 2025 — Present [monthly]

    Recruiting

  2. Sep 2024 — May 2025 [monthly]

    Recruiting

  3. Jul 2024 — Sep 2024 [monthly]

    Recruiting

  4. May 2024 — Jul 2024 [monthly]

    Recruiting

  5. Oct 2023 — May 2024 [monthly]

    Recruiting

Show 9 earlier versions
  1. Oct 2022 — Oct 2023 [monthly]

    Recruiting

  2. Oct 2021 — Oct 2022 [monthly]

    Recruiting

  3. Jan 2021 — Oct 2021 [monthly]

    Recruiting

  4. Oct 2020 — Jan 2021 [monthly]

    Recruiting

  5. Nov 2019 — Oct 2020 [monthly]

    Recruiting

  6. Feb 2019 — Nov 2019 [monthly]

    Recruiting

  7. Jun 2018 — Feb 2019 [monthly]

    Recruiting

  8. Apr 2018 — Jun 2018 [monthly]

    Recruiting

    Phase: NANone

  9. Jan 2017 — Apr 2018 [monthly]

    Recruiting NA

    First recorded

Aug 2015

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Mayo Clinic
Data source: Mayo Clinic

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

Study Locations