Serological Response to Retreatment of Serofast Early Syphilis Cases With Benzathine Penicillin

November 15, 2018 updated by: Jun Li, Peking Union Medical College Hospital

Randomized, Clinical Trial to Compare the Serological Response Rates of Serofast Early Syphilis Cases Retreated With Three Doses Benzathine Penicillin and Absence of Any Retreatment

A continuing challenge to determining the response to treatment of early syphilis (primary, secondary, early latent syphilis) is exemplified by the substantial proportion of patients who fail to achieve serological cure and remain serofast. Although retreatment is often done in clinical practice, optimal management remains uncertain due to the paucity of data regarding serological response to retreatment and long-term outcomes. Furthermore, the investigators cannot rule out that the gradually increasing seroreversion/serological cure rates may have been due to the natural decline in rapid plasma regain (RPR) titers after initial therapy, rather than due to the additional dose of benzathine penicillin. Thus, the investigators would like to conduct a clinical trial to compare the serological response rates of serofast early syphilis cases retreated with three doses benzathine penicillin and absence of any retreatment (control group).

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

150

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
      • Beijing, China
        • Recruiting
        • Department of Dermatology and Venereology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 60 years (ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Early Syphilis Cases Determined to Be Serofast at 6 Months after Initial Treatment

Exclusion Criteria:

  • Human immunodeficiency virus (HIV)-infected
  • Baseline serology showed a nonreactive RPR test
  • follow-up is inadequate
  • Allergic to penicillin
  • Pregnant woman

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: Retreatment group
Serofast early syphilis cases retreated with three doses benzathine penicillin
Drug: benzathine penicillin
NO_INTERVENTION: Control group
Absence of any retreatment

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Rapid plasma regain titer
Time Frame: 6 months after retreatment
6 months after retreatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Peking Union Medical College Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2016

Primary Completion (ANTICIPATED)

September 1, 2020

Study Completion (ANTICIPATED)

September 1, 2020

Study Registration Dates

First Submitted

August 22, 2016

First Submitted That Met QC Criteria

August 29, 2016

First Posted (ESTIMATE)

August 30, 2016

Study Record Updates

Last Update Posted (ACTUAL)

November 16, 2018

Last Update Submitted That Met QC Criteria

November 15, 2018

Last Verified

November 1, 2018

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PUMCH-2016080

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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