Completed

Characteristics of Baseline Mucosal Indices of Injury and Inflammation in Men For Use in Rectal Microbicide Trials

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What is being collected

Data Collection

Collected from today forward - Prospective
Who is being recruted

Blood-Borne Infections+11

+ Urogenital Diseases

+ Genital Diseases

Over 18 Years
See all eligibility criteria
How is the trial designed

Observational
See protocol details

Summary

Principal SponsorNational Institute of Allergy and Infectious Diseases (NIAID)
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Rectal microbicides to prevent HIV transmission are currently being developed in the hope that someday they will be widely used to prevent sexually transmitted HIV. This study will examine variables in male rectal tissue; this information may be useful for future rectal microbicide safety and efficacy studies. The study will evaluate the differences in rectal tissue from HIV infected or uninfected males who either engage in anal-receptive sex (men who sleep with men, or MSM) or do not have anal-receptive sex. The study will last approximately 7 months, with 6 weeks of follow-up. There are four groups in this study. Groups 1 and 2 will enroll HIV uninfected men; Groups 3 and 4 will enroll HIV infected men. Groups 1, 3, and 4 will comprise MSM who engage in anal-receptive sex; Group 2 will comprise men who do not. Patients will provide medical and medication history, undergo a complete physical exam, and receive HIV counseling at screening. An anoscopy (examination of the anus, anal canal, and lower rectum) and blood draw will be conducted at screening, study entry, and Weeks 2 and 4. Rectal secretions will be collected and a sigmoidoscopy (an internal examination of the rectum, distal sigmoid colon, and large bowel using a small camera) will be performed at study entry and Weeks 2 and 4.

Official TitleCharacteristics of Baseline Mucosal Indices of Injury and Inflammation in Men For Use in Rectal Microbicide Trials 
NCT00075062
Principal SponsorNational Institute of Allergy and Infectious Diseases (NIAID)
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

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

16 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Male

Biological sex of participants that are eligible to enroll.

Over 18 Years

Range of ages for which participants are eligible to join.

Healthy volunteers allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Blood-Borne InfectionsUrogenital DiseasesGenital DiseasesCommunicable DiseasesImmunologic Deficiency SyndromesImmune System DiseasesInfectionsRetroviridae InfectionsRNA Virus InfectionsSexually Transmitted DiseasesVirus DiseasesSexually Transmitted Diseases, ViralHIV InfectionsLentivirus Infections

Criteria

Inclusion Criteria for All Participants: * HIV status confirmed by ELISA/Western Blot at screening * CD4 count greater than 200 cells/mm3 at screening * Able and willing to communicate in English * Able and willing to provide adequate information for locator purposes Inclusion Criteria for Men Practicing Anal-Receptive Sex (Groups 1, 3 and 4): * Engaged in anal-receptive sex an average of at least once a week in the 2 months prior to study entry * Agree to refrain from anal intercourse for 24 hours prior to and for one week after sigmoidoscopy Inclusion Criteria for Men Not Practicing Anal-Receptive Sex (Group 2) * No history of anal receptive intercourse in the 2 months prior to study entry Inclusion Criteria for HIV Infected Men (Groups 3 and 4): * Viral load of either greater than 10,000 copies of RNA/ml plasma or less than 50 copies RNA/ml plasma for at least 2 months prior to study entry * Have not changed antiretroviral therapy within 6 weeks prior to study entry Exclusion Criteria: * For HIV infected patients, 3 or more HSV-2 (herpes) outbreaks in the 12 months prior to screening or 1 or more HSV-2 outbreaks in the 6 months prior to screening * Active, serious infections (other than HIV) requiring parenteral antibiotic therapy within 15 days prior to screening * Inflammatory bowel disease (ulcerative colitis or Crohn's disease) or rectal cancer * Rectal surgery, including fistulectomy * Diagnosed bleeding disorder, including hemophilia, thrombocytopenia, impaired blood clotting, or current use of anticoagulants that, in the opinion of the investigator, would make participation in the study unsafe or complicate interpretation of study outcome data * Prosthetic heart valve or diagnosis of valve abnormality * Hemorrhoid surgery in the 6 months prior to screening * Bleeding hemorrhoids at screening or in the 6 weeks prior to study entry * Anal fistulae in the 6 weeks prior to study entry * Active diarrheal disease (greater than 3 times a day) or bleeding disorder * Rectal cultures positive for chlamydia or gonorrhea at screening or within 1 month prior to study entry * Unprotected anal intercourse in the 3 months prior to study entry * Any other clinical condition or prior therapy that, in the opinion of the investigator, would make the patient unsuitable for the study or unable to comply with study requirements * Enrolled in any other clinical trial for the duration of their participation in HPTN 056

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

David Geffen School of Medicine at UCLA

Los Angeles, United StatesSee the location
CompletedOne Study Center