deltatrials
Completed OBSERVATIONAL NCT01922388

Early Versus Late Application of STN DBS to PD Patients With Motor Complications (ELASS)

Early Versus Late Application of Subthalamic Deep Brain Stimulation to Parkinson's Disease Patients With Motor Complications: a Multicentre, Prospective and Observational Study

Sponsor: Chen Ling

Conditions Parkinson Disease
Interventions Bilateral deep brain stimulation of the subthalamic nucleus
Updated 10 times since 2017 Last updated: Sep 25, 2023 Started: Aug 31, 2013 Primary completion: Dec 31, 2022 Completion: Dec 31, 2022
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 Parkinson Disease and is currently completed. Chen Ling leads this study, which shows 10 recorded versions since 2013 — indicating substantial longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

~Jan 2017 – ~Feb 2017 · 31 days · monthly snapshotRecruiting~Feb 2017 – ~Jun 2018 · 16 months · monthly snapshotRecruiting~Jun 2018 – ~Oct 2018 · 4 months · monthly snapshotRecruiting~Oct 2018 – ~May 2020 · 19 months · monthly snapshotRecruiting~May 2020 – ~Jan 2021 · 8 months · monthly snapshotRecruiting~Jan 2021 – ~May 2022 · 16 months · monthly snapshotRecruiting~May 2022 – ~Oct 2023 · 17 months · monthly snapshotUnknown Status~Oct 2023 – ~Jul 2024 · 9 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – present · 22 months · monthly snapshotCompleted

Change History

10 versions recorded

  1. Sep 2024 — Present [monthly]

    Completed

  2. Jul 2024 — Sep 2024 [monthly]

    Completed

  3. Oct 2023 — Jul 2024 [monthly]

    Completed

    Status: Unknown Status → Completed

  4. May 2022 — Oct 2023 [monthly]

    Unknown Status

    Status: Recruiting → Unknown Status

  5. Jan 2021 — May 2022 [monthly]

    Recruiting

▶ Show 5 earlier versions

  1. May 2020 — Jan 2021 [monthly]

    Recruiting

  2. Oct 2018 — May 2020 [monthly]

    Recruiting

    Phase: NA → None

  3. Jun 2018 — Oct 2018 [monthly]

    Recruiting NA

  4. Feb 2017 — Jun 2018 [monthly]

    Recruiting NA

  5. Jan 2017 — Feb 2017 [monthly]

    Recruiting NA

    First recorded

Aug 2013

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Chen Ling
  • Prince of Wales Hospital, Shatin, Hong Kong
  • Shenzhen Second People's Hospital
Data source: First Affiliated Hospital, Sun Yat-Sen University

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

Study Locations