deltatrials
Unknown OBSERVATIONAL NCT03709459

Impact of the Daily Doxycycline Pre-exposure Prophylaxis (PrEP) on the Incidence of Syphilis, Gonorrhoea and Chlamydia (Syphilaxis)

Sponsor: Kirby Institute

Interventions Doxycycline
Updated 13 times since 2018 Last updated: Oct 3, 2023 Started: Dec 17, 2019 Primary completion: Jul 17, 2024 Completion: Dec 17, 2024
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 STIs Prevention, this trial is ongoing. The trial is conducted by Kirby Institute and has accumulated 13 data snapshots since 2019. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.

Status Flow

~Nov 2018 – ~Dec 2019 · 13 months · monthly snapshot~Dec 2019 – ~Mar 2020 · 3 months · monthly snapshot~Mar 2020 – ~Nov 2020 · 8 months · monthly snapshot~Nov 2020 – ~Jan 2021 · 2 months · monthly snapshot~Jan 2021 – ~Mar 2021 · 59 days · monthly snapshot~Mar 2021 – ~Dec 2021 · 9 months · monthly snapshot~Dec 2021 – ~May 2022 · 5 months · monthly snapshot~May 2022 – ~Nov 2023 · 18 months · monthly snapshot~Nov 2023 – ~Jul 2024 · 8 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshot~Sep 2025 – ~Dec 2025 · 3 months · monthly snapshot~Dec 2025 – present · 7 months · monthly snapshot

Change History

13 versions recorded
  1. Dec 2025 — Present [monthly]

    Unknown

    Status: Active Not RecruitingUnknown

  2. Sep 2025 — Dec 2025 [monthly]

    Active Not Recruiting

  3. Sep 2024 — Sep 2025 [monthly]

    Active Not Recruiting

  4. Jul 2024 — Sep 2024 [monthly]

    Active Not Recruiting

  5. Nov 2023 — Jul 2024 [monthly]

    Active Not Recruiting

    Status: RecruitingActive Not Recruiting

Show 8 earlier versions
  1. May 2022 — Nov 2023 [monthly]

    Recruiting

  2. Dec 2021 — May 2022 [monthly]

    Recruiting

  3. Mar 2021 — Dec 2021 [monthly]

    Recruiting

  4. Jan 2021 — Mar 2021 [monthly]

    Recruiting

  5. Nov 2020 — Jan 2021 [monthly]

    Recruiting

  6. Mar 2020 — Nov 2020 [monthly]

    Recruiting

    Status: Not Yet RecruitingRecruiting

  7. Dec 2019 — Mar 2020 [monthly]

    Not Yet Recruiting

  8. Nov 2018 — Dec 2019 [monthly]

    Not Yet Recruiting

    First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Kirby Institute
  • Monash University
  • South Australian Health and Medical Research Institute
Data source: Kirby Institute

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