- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02031146
Lumbar Puncture and Syphilis Outcome
May 20, 2021 updated by: Christina Marra, University of Washington
Treponema pallidum, the bacterium that causes syphilis, invades the central nervous system in about 40% of patients with syphilis.
This happens early after infection.
Patients with neuroinvasion are at risk of developing serious neurological complications, including vision or hearing loss, stroke and dementia.
Because neuroinvasion can happen without symptoms, the only way to identify it is by performing a lumbar puncture (LP) to examine cerebrospinal fluid (CSF).The overall hypothesis to be tested in this study is that a strategy of immediate LP, followed by therapy based on CSF evaluation, results in better serological and functional outcomes in patients with syphilis who are at high risk for neuroinvasion.
Study Overview
Study Type
Interventional
Enrollment (Actual)
231
Phase
- Not Applicable
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
-
-
Washington
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Seattle, Washington, United States, 98104
- University of Washington Harborview Medical Center
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-
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 and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Males and females age 18 years or older
- Current syphilis
- Primary language is English or English is a second language but patient self-describes as fluent in English
- Able to provide informed consent
- If treated with benzathine penicillin G (BPG), it must have occurred less than 14 days before the entry visit (before the first visit if there is more than one entry visit)
Exclusion Criteria:
- Provider plans neurosyphilis (NS) treatment regardless of whether the patient has an lumbar puncture (LP)
- Receipt of antibiotic treatment that would be effective for NS (for example, IV or intramuscular (IM) beta-lactam antibiotics [other than BPG]) within one month before study entry; single dose of IM ceftriaxone in the last month is not exclusionary
- Allergy to penicillin or lidocaine
- Contraindication to LP, including untreatable coagulation disorder, use of anticoagulants that cannot be temporarily discontinued, thrombocytopenia, focal neurological examination
- Other known cause of central nervous system (CNS) infection in the last year, including that due to bacterial, fungal, protozoal or viral agents, such as tuberculosis, Cryptococcus, toxoplasmosis or herpes zoster that could confound interpretation of CSF results
- Unlikely to be able to comply with study requirements or complete the study, for example, planning to leave the area < 6 months after enrollment
- Subjects will not be allowed to re-enroll in this study with a new episode of syphilis
Individuals who are unwilling to be randomized can choose LP or no LP. Eligibility criteria for these individuals are:
- 18 years of age or older
- Current syphilis infection
- Primary language is English or fluent in English
- No contraindications to LP
- Have not received antibiotics within one month that would treat neurosyphilis
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: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: LP
Participants undergo lumbar puncture for CSF evaluation
|
|
No Intervention: No LP
Participants do not undergo lumbar puncture and CSF is not examined.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Appropriate Decline in Serum Rapid Plasma Reagin Test (RPR) Titer
Time Frame: 6-12 months +/- 4 weeks
|
Decline in serum RPR titer by four-fold or to nonreactive at 6 months (+/- 4 weeks) in early syphilis or at 12 months (+/- 4 weeks) in late syphilis.
This is the definition of treatment success according to the US Centers for Disease Control and Prevention guidelines.
|
6-12 months +/- 4 weeks
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Time to Improvement in Performance on CogState Battery.
Time Frame: 6-12 months +/- 4 weeks
|
Assessment of cognitive impairment was based on age adjusted normative data from CogState and was categorized as none (all test scores > -1 standard deviation [SD] of normative data), mild impairment (two test scores < -1 SD, or one test score < -2 SD), moderate impairment (two test scores < -2 SD) or severe impairment (three test scores < -2 SD).
Participants were categorized as improved if they had any impairment at study entry and improved by at least one category.
|
6-12 months +/- 4 weeks
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Christina M Marra, MD, University of Washington
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, 2013
Primary Completion (Actual)
December 1, 2020
Study Completion (Actual)
December 1, 2020
Study Registration Dates
First Submitted
January 6, 2014
First Submitted That Met QC Criteria
January 8, 2014
First Posted (Estimate)
January 9, 2014
Study Record Updates
Last Update Posted (Actual)
May 25, 2021
Last Update Submitted That Met QC Criteria
May 20, 2021
Last Verified
May 1, 2021
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- STUDY00001718
- R01NS082120 (U.S. NIH Grant/Contract)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
No
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
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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