deltatrials
Unknown OBSERVATIONAL NCT04439435

Evaluation of Immunoprotection Provided by Hepatitis B Vaccine After Birth in Healthy Children

Sponsor: Children's Hospital of Chongqing Medical University

Conditions Vaccine Reaction
Updated 5 times since 2020 Last updated: Jun 17, 2020 Started: Jul 31, 2020 Primary completion: Dec 31, 2020 Completion: Oct 31, 2021
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT04439435, this observational or N/A phase trial focuses on Vaccine Reaction and remains ongoing. Sponsored by Children's Hospital of Chongqing Medical University, it has been updated 5 times since 2020, reflecting limited change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

~Jul 2020 – ~Jan 2021 · 6 months · monthly snapshotNot Yet Recruiting~Jan 2021 – ~Jul 2022 · 18 months · monthly snapshotNot Yet Recruiting~Jul 2022 – ~Jul 2024 · 24 months · monthly snapshotUnknown Status~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – present · 22 months · monthly snapshotUnknown

Change History

5 versions recorded

  1. Sep 2024 — Present [monthly]

    Unknown

  2. Jul 2024 — Sep 2024 [monthly]

    Unknown

    Status: Unknown Status → Unknown

  3. Jul 2022 — Jul 2024 [monthly]

    Unknown Status

    Status: Not Yet Recruiting → Unknown Status

  4. Jan 2021 — Jul 2022 [monthly]

    Not Yet Recruiting

  5. Jul 2020 — Jan 2021 [monthly]

    Not Yet Recruiting

    First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Children's Hospital of Chongqing Medical University
Data source: Children's Hospital of Chongqing Medical University

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

Study Locations