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CompletedNCT01201083MetroMatesUpdated Apr 18, 2019

Study of Recently HIV Infected Men and Transmission Behaviors

An observational study in HIV, sponsored by University of California, Los Angeles. Completed at 1 site in United States. Open to male participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-04-18.

Sponsored by University of California, Los Angeles · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
600
Ages
18 Years and older
Sex
Male
01

Study summary

Identify drug use patterns and partnership dynamics that mediate risk behaviors over time in a cohort of recently HIV infected men and their partners; to determine predictors of transmission risk within partnerships of recently HIV infected men and their partners, using the partnership as the unit of analysis; and to quantify the long-term population-level impacts of voluntary behavior change by men with recent HIV infection, through the use of dynamic mathematical modeling that integrates our data on behavior change with current estimates of temporal infectiousness patterns. The investigators will also determine whether more frequent testing and/or development of tests with earlier sensitivity may have a significant impact on the epidemic. Finally, the magnitude of this effect to that obtained by decreasing drug use or risky sexual behavior prior to or following seroconversion will be compared. This will be conducted as a statistical analysis by co-investigators at the University of Washington.

Read the detailed description

People who recently became infected with HIV often have a high level of the virus and may be highly infectious. If they have sex (especially anal intercourse) without condoms soon after they have been infected with HIV, there is a great chance that they may transmit the virus to others. When they learn of their HIV infection, some but not all men change sexual behaviors so as not to infect their partner(s) with HIV. Possible reasons for such behavior change include increase or decrease in drug use and what is going on within their sexual partnerships. A study that tracks men with recent HIV infection and their partners over time can provide information key to stopping further spread of HIV given that sexual behaviors can vary over time, especially during this most infectious period.

This study will look at how likely it is for HIV infection to be spread among partner types over time by recently HIV-infected men and their partners. The study will compare behaviors of recently HIV infected men to those with long-term HIV infection and no HIV infection. It will allow a study of sexual partnerships by actively recruiting sexual partners. We will also focus on the role of drug use, especially methamphetamine and how it changes behaviors over time. We will especially look at how different sex partners affects one's drug use and increases or decreases HIV transmission. The study will enroll 150 recently HIV-infected men who have sex with men and follow them for a year. In addition, up to 6 sexual partners of each recently HIV infected individual will be recruited and followed for a year. Some sexual partners will be HIV negative and some HIV positive. We will use their HIV status to compare behaviors over time in the group and between partners of the same status and partners of a different status. The results will be used in special formulas that will allow for a better understanding of behavior change by men with recent HIV infection. This new information will be key for designing new ways to target risk reduction for recently HIV-infected men.

02

Conditions studied

  • HIV
03

In context

Lead sponsor

University of California, Los Angeles is the lead sponsor of 1,167 studies on the registry; 192 are open to participants now.

Of its 94 completed or terminated interventional studies of FDA-regulated products, 69 (73%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

STI/HIV testing and treatment clinic

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

18 years of age or older Male Documented HIV infection that occurred within previous 12 months Willing to complete study procedures Mentally competent to give informed consent Willingness to refer partners to study Ability to complete practice questions for the web-based system

Exclusion criteria

Exclusion Criteria:

Less than 18 years of age No report of sex with another man in the past 12 months

Unwilling to be tested for HIV including:

Unwilling to complete study follow-up questionnaires Not mentally competent to understand study procedures and give informed consent Unwilling to provide an email address or create one for the study

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
600 participants (actual)
Biospecimen retention
Samples with dna

Groups and cohorts

  • HIV-

    This study measured how transmission risks and partnership dynamics change over time among recently HIV-infected individuals and their partners comparing their behavioral patterns with those with chronic HIV infection, no HIV infection, and HIV negative testers. Of special focus was the role of drug use, especially methamphetamine, in affecting behaviors over time, and how partnership dynamics interact with drug use to allow for HIV transmission. The study compared behaviors of recently HIV infected men to those with long-term HIV infection and no HIV infection. We looked at how different types of sex partners affected one's drug use and consequently HIV transmission risks including having a prevalent sexually transmitted infection (STI). The study enrolled 105 HIV- recently tested men who have sex with men (MSM) and followed them for a year.

  • HIV+ Acutely Infected

    This study enrolled and followed 125 acutely infected HIV+ men. It measured how transmission risks and partnership dynamics change over time among recently HIV-infected individuals and their partners comparing their behavioral patterns with those with chronic HIV infection, no HIV infection, and HIV negative testers. Of special focus was the role of drug use, especially methamphetamine, in affecting behaviors over time, and how partnership dynamics interact with drug use to allow for HIV transmission. The study compared behaviors of recently HIV infected men to those with long-term HIV infection and no HIV infection. We looked at how different types of sex partners affected one's drug use and consequently HIV transmission risks including having a prevalent sexually transmitted infection (STI). The study enrolled 321 recently tested men who have sex with men (MSM) and followed them for a year.

  • HIV+ Chronically Infected

    This study enrolled and followed 91chronicially infected HIV+ men. It measured how transmission risks and partnership dynamics change over time among recently HIV-infected individuals and their partners comparing their behavioral patterns with those with chronic HIV infection, no HIV infection, and HIV negative testers. Of special focus was the role of drug use, especially methamphetamine, in affecting behaviors over time, and how partnership dynamics interact with drug use to allow for HIV transmission. The study compared behaviors of recently HIV infected men to those with long-term HIV infection and no HIV infection. We looked at how different types of sex partners affected one's drug use and consequently HIV transmission risks including having a prevalent sexually transmitted infection (STI). The study enrolled 321 recently tested men who have sex with men (MSM) and followed them for a year.

06

What researchers measure

Primary outcomes

  1. To measure how HIV transmission risks change over time among recently HIV-infected individuals and their partners

    This study will compare behavioral patterns of recently HIV infected individuals with those with chronic HIV infection and no HIV infection. It will allow for partnership level analyses by actively recruiting sexual partners.

    Time frame: 12 months

07

Study locations

1 site
  • Los Angeles Gay and Lesbian Center
    Los Angeles, California 90028, United States
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References and documents

Publications

  • Murray CH, Javanbakht M, Cho GD, Gorbach PM, Fulcher JA, Cooper ZD. Changes in Immune-Related Biomarkers and Endocannabinoids as a Function of Frequency of Cannabis Use in People Living With and Without HIV. Cannabis Cannabinoid Res. 2024 Jun;9(3):e897-e906. doi: 10.1089/can.2022.0287. Epub 2023 Apr 20. PubMed 37093248 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 18, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01201083
Collaborators
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Responsible party
Pamina Gorbach (Principal Investigator, University of California, Los Angeles) — Principal investigator
First posted
Sep 14, 2010
Start date
Feb 2009
Primary completion
Mar 2018
Completion
Aug 2018
Last update
Apr 18, 2019

Study contacts

Pamina M. Gorbach, DrPh
principal investigator · UCLA/EPI

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2019. You cannot join it, but the record below documents what was studied.

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