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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03660488
Other study ID # 18-000665
Secondary ID 20181796
Status Completed
Phase Phase 2
First received
Last updated
Start date September 3, 2018
Est. completion date January 30, 2021

Study information

Verified date July 2022
Source University of California, Los Angeles
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The goal of the study is to evaluate the efficacy of oral cefixime as an alternative treatment for syphilis infection. One hundred adult patients (≥18 years old) with syphilis infection (positive Treponema Pallidum Particle Agglutination assay and RPR titer ≥ 1/8) will be recruited. Participants will be randomized (1:1) to receive either the standard of care Penicillin or Cefixime. During the study, participants will visit the clinic up to 5 times; at baseline visit, at 3, 6, 12 months after treatment initiation. Participants of the cefixime group will be required to visit the clinic 14 days after treatment initiation. In each visit, participants will be asked about current symptoms and do laboratory tests for syphilis (RPR). Subjects who have a 4-fold decrease (from study entry RPR) in RPR titers from baseline at 6 months will be considered a positive treatment response.


Description:

Syphilis is a major issue worldwide causing 5.6 million new cases of syphilis worldwide, of which over 900,000 are pregnant women. It is also responsible for congenital infections causing fetal loss or stillbirth or, in a live-born infant, neonatal death, prematurity and low birth weight. Penicillin is the currently used treatment. However, lack of penicillin and alternatives to treatment often hinder treatment and prevention efforts. Cefixime is an FDA-approved, orally administered third-generation cephalosporin that is currently used for the treatment of a wide range of infections, including urinary tract infections. Our goal is to evaluate the efficacy and safety of oral cefixime as an alternative treatment for syphilis infection. One hundred adult patients (≥18 years old) with syphilis infection will be recruited. Eligible participants will have laboratory-confirmed syphilis infection with a positive Treponema pallidum Particle Agglutination (TPPA) assay and RPR (Rapid Plasma Reagin ) titer ≥ 1/8. Participants will be randomized (1:1) to receive either the standard of care Penicillin or Cefixime. During the study, participants will visit the clinic 5 times; at baseline visit, demographic, clinical information and laboratory test results for syphilis will be recorded and treatment will start. Depending on the study group, the treatment plan will be oral Cefixime 400mg, twice per day for ten consecutive days or one dose of intramuscular Penicillin. Patients will be required to visit the clinic two weeks after treatment initiation to verify adverse effects. Follow up visits will occur at 3, 6 and 12 months after treatment initiation. In each visit, participants will be asked about current symptoms, interval sexual history, concomitant antibiotic use and possible adverse reactions. Subjects will also have a venipuncture blood specimen collected for syphilis testing (RPR). Subjects who have a 4-fold decrease (from study entry RPR) in RPR titers from baseline at 6 months will be considered a positive treatment response.


Recruitment information / eligibility

Status Completed
Enrollment 58
Est. completion date January 30, 2021
Est. primary completion date January 30, 2021
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: 1. 18 years of age or older and able to provide informed consent 2. Cases of primary, secondary or early latent syphilis with RPR titer =1:8 within 3 weeks prior to enrollment. 3. HIV infected individuals willing to participate in the study must have CD4 count =350 cells/µl within the last 4 weeks and be virally suppressed (i.e., viral load = 200 copies/mL) for HIV for the 6 months prior to enrolment with the most recent results within the last 4 weeks. inclusion 4. Non-cephalosporin allergic 5. Able to travel to the clinic once a day or be available for phone calls or receive text messages for at least 7-10 days and willing to attend follow-up visits 6. Able to swallow pills Exclusion Criteria: 1. Pregnancy or positive pregnancy test 2. Serofast RPR titer (prior titer 1:8 or greater) 3. Recent (less than 7 days) or concomitant antimicrobial therapy with activity against syphilis. 4. Cephalosporin allergy: previous episode of flushing, urticaria, angioedema, rhinitis, bronchospasm, and anaphylactic shock, rash after taking cephalosporin. 5. Penicillin allergy: previous episode of flushing, urticaria, angioedema, rhinitis, bronchospasm, and anaphylactic shock, rash after receiving Penicillin. 6. Has a medical condition or other factor that might affect their ability to follow the protocol

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Cefixime 400 milligram Oral Capsule [Suprax]
The intervention group will receive Cefixime 400mg, one tablet twice per day, for ten consecutive days
Benzathine Penicillin G
The control group will receive Benzathine Penicillin G 2.4 Million Units intramuscularly for treatment of syphilis. Penicillin is the indicated treatment for syphilis infection

Locations

Country Name City State
United States AHF Westside Beverly Hills California
United States AHF Las Vegas Healthcare Center Las Vegas Nevada
United States AHF Carl Bean Los Angeles California
United States AHF Downtown Healthcare Center Los Angeles California
United States AHF Hollywood Healthcare Center Los Angeles California
United States AHF Wellness on Western Center Los Angeles California
United States AHF Healthcare Center Oakland Oakland California
United States AHF Oakland Wellness Center Oakland California
United States AHF San Francisco San Francisco California
United States AHF Valley Sherman Oaks California

Sponsors (2)

Lead Sponsor Collaborator
University of California, Los Angeles AIDS Healthcare Foundation

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Treatment Response subjects who have a 4-fold decrease (from study entry Rapid plasma reagin) in Rapid plasma reagintiters from baseline at 3 or 6 months will be considered a positive treatment response. 3 or 6 months after treatment completion
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