Cerebrospinal Fluid (CSF) Raltegravir Substudy
MK: Raltegravir Concentrations in Cerebrospinal Fluid
1 other identifier
observational
4
0 countries
N/A
Brief Summary
The purpose of this study is to measure concentrations of Raltegravir in cerebrospinal fluid. The hypotheses are:
- Raltegravir concentrations in CSF will be measurable
- Raltegravir concentrations in CSF will remain constant, while plasma concentrations vary widely leading to highly variable CSF-to-plasma ratios.
- Following at least 4 weeks of Raltegravir-containing combination therapy, HIV RNA levels in CSF will be below 50 copies/mL in all subjects.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started Jul 2008
Typical duration for all trials
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2008
CompletedFirst Submitted
Initial submission to the registry
July 16, 2008
CompletedFirst Posted
Study publicly available on registry
July 18, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2009
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2011
CompletedAugust 13, 2019
August 1, 2019
1 year
July 16, 2008
August 8, 2019
Conditions
Keywords
Eligibility Criteria
Participants will be selected from participants already enrolled in Merck-sponsored Raltegravir Clinical Trials.
You may qualify if:
- Enrollment in a raltegravir parent protocol at UCSD.
- Willing to undergo lumbar puncture.
- Able to give informed consent. If cognitively impaired, a test will be administered to ensure adequate comprehension of the consent document and procedure.
You may not qualify if:
- Relative or absolute contraindication to lumbar puncture, such as current coagulopathy, thrombocytopenia (platelets\<50,000/µL), hemophilia, or use of anticoagulant medication.
- Psychiatric disease that would interfere with study participation, in the opinion of the investigator.
- No major opportunistic infections within 30 days.
- Moderate or severe cognitive impairment. The proposed study does not have a neuropsychological objective.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of California, San Diegolead
- Merck Sharp & Dohme LLCcollaborator
Biospecimen
CSF, PBMC, plasma
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Scott L Letendre, MD
University of California, San Diego AntiViral Research Center
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 16, 2008
First Posted
July 18, 2008
Study Start
July 1, 2008
Primary Completion
July 1, 2009
Study Completion
February 1, 2011
Last Updated
August 13, 2019
Record last verified: 2019-08