deltatrials
Completed OBSERVATIONAL NCT01500525

Bronchodilator Response in 4-12 Years Chinese Controller Naive Asthmatic Children

A Prospective Observational Study in a Tertiary Pediatric Hospital in Beijing to Understand the Accuracy of Bronchodilator Response (BDR) in Chinese Controller Naive Asthmatic Children Between the Age of 4~12 Years Old

Sponsor: Capital Institute of Pediatrics, China

Conditions Asthma
Updated 10 times since 2017 Last updated: Sep 27, 2021 Started: Dec 31, 2011 Primary completion: Jan 31, 2014 Completion: Apr 30, 2015
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 Asthma and is currently completed. Capital Institute of Pediatrics, China leads this study, which shows 10 recorded versions since 2011 — indicating substantial longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

~Jan 2017 – ~Apr 2018 · 15 months · monthly snapshotUnknown Status~Apr 2018 – ~Jun 2018 · 2 months · monthly snapshotUnknown Status~Jun 2018 – ~Jan 2021 · 31 months · monthly snapshotUnknown Status~Jan 2021 – ~Oct 2021 · 9 months · monthly snapshotUnknown Status~Oct 2021 – ~Jun 2022 · 8 months · monthly snapshotCompleted~Jun 2022 – ~Dec 2022 · 6 months · monthly snapshotCompleted~Dec 2022 – ~Jan 2023 · 31 days · monthly snapshotCompleted~Jan 2023 – ~Jul 2024 · 18 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. Jan 2023 — Jul 2024 [monthly]

    Completed

  4. Dec 2022 — Jan 2023 [monthly]

    Completed

  5. Jun 2022 — Dec 2022 [monthly]

    Completed

Show 5 earlier versions
  1. Oct 2021 — Jun 2022 [monthly]

    Completed

    Status: Unknown StatusCompleted

  2. Jan 2021 — Oct 2021 [monthly]

    Unknown Status

  3. Jun 2018 — Jan 2021 [monthly]

    Unknown Status

  4. Apr 2018 — Jun 2018 [monthly]

    Unknown Status

    Phase: NANone

  5. Jan 2017 — Apr 2018 [monthly]

    Unknown Status NA

    First recorded

Dec 2011

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Capital Institute of Pediatrics, China
  • Merck Sharp & Dohme LLC
Data source: Capital Institute of Pediatrics, China

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

Study Locations