Actively Recruiting

Phase 3
Age: 18Years +
All Genders
NCT04958122

Cefixime Clinical Trial

Led by University of Southern California · Updated on 2026-05-04

400

Participants Needed

1

Research Sites

314 weeks

Total Duration

On this page

Sponsors

U

University of Southern California

Lead Sponsor

A

AIDS Healthcare Foundation

Collaborating Sponsor

AI-Summary

What this Trial Is About

This study aims to evaluate the efficacy of cefixime compared to benzathine penicillin G in the treatment of syphilis.

CONDITIONS

Official Title

Cefixime Clinical Trial

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Diagnosed with primary, secondary, or early latent syphilis with RPR titer 1:8 within 3 weeks before enrollment
  • 18 years of age or older
  • Able to provide informed consent
  • If living with HIV, must be on treatment and virologically suppressed (viral load <200 copies/mL) or have a CD4 count  350 cells/mm3 based on recent labs
Not Eligible

You will not qualify if you...

  • Pregnant or positive pregnancy test on enrollment day
  • Signs or symptoms of neurosyphilis
  • Persistent positive RPR titer without a 4-fold change for 12 months or more (serofast)
  • Recent (within 7 days) or current use of antibiotics effective against syphilis, such as azithromycin, doxycycline, ceftriaxone, or beta-lactam antibiotics
  • HIV-positive individuals with treatment interruption longer than 4 weeks since last viral load or CD4 test
  • Allergy to cephalosporins or penicillin
  • Unwilling or unable to attend follow-up visits

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 1 location

1

University of Southern California

Los Angeles, California, United States, 90032

Actively Recruiting

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Research Team

J

Jeffrey D Klausner

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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