deltatrials
Completed PHASE3 INTERVENTIONAL 2-arm NCT00031499

Azithromycin/Bicillin Syphilis

A Phase III Equivalence Trial of Azithromycin vs. Benzathine Penicillin for the Treatment of Early Syphilis

Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)

Conditions Syphilis
Updated 7 times since 2017 Last updated: Apr 25, 2013 Started: Jun 30, 2000 Primary completion: Aug 31, 2007 Completion: Mar 31, 2009
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT00031499, this PHASE3 trial focuses on Syphilis and remains completed. Sponsored by National Institute of Allergy and Infectious Diseases (NIAID), it has been updated 7 times since 2000, reflecting limited change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

~Jan 2017 – ~Feb 2017 · 31 days · monthly snapshotCompleted~Feb 2017 – ~Jun 2018 · 16 months · monthly snapshotCompleted~Jun 2018 – ~Jan 2021 · 31 months · monthly snapshotCompleted~Jan 2021 – ~Jul 2024 · 42 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshotCompleted~Sep 2025 – present · 9 months · monthly snapshotCompleted

Change History

7 versions recorded
  1. Sep 2025 — Present [monthly]

    Completed PHASE3

  2. Sep 2024 — Sep 2025 [monthly]

    Completed PHASE3

  3. Jul 2024 — Sep 2024 [monthly]

    Completed PHASE3

  4. Jan 2021 — Jul 2024 [monthly]

    Completed PHASE3

  5. Jun 2018 — Jan 2021 [monthly]

    Completed PHASE3

Show 2 earlier versions
  1. Feb 2017 — Jun 2018 [monthly]

    Completed PHASE3

  2. Jan 2017 — Feb 2017 [monthly]

    Completed PHASE3

    First recorded

Jun 2000

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • National Institute of Allergy and Infectious Diseases (NIAID)
Data source: National Institute of Allergy and Infectious Diseases (NIAID)

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