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Evaluation of the PrePex Device for Rapid Scale-up of VMMC, Phase 3 Field Implementation Trial With HIV + Adult Males

Evaluation of Safety, Efficacy and Acceptability of the PrePexTM Device for Rapid Scale-up of Adult Male Circumcision Programs in Zimbabwe, Phase III PrePexTM Field Implementation Trial With HIV Positive Adult Males

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03218839
Enrollment
430
Registered
2017-07-17
Start date
2015-10-31
Completion date
2016-05-31
Last updated
2017-07-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV Seropositivity

Keywords

PrePex, HIV Seropositivity

Brief summary

This study will assess the safety of the PrePex device as applied to HIV positive men by assessing the rate of clinical adverse events. The study will include adult, HIV + men who are eligible to receive the PrePex procedure per the Zimbabwe Ministry of Health and Child Care (MOHCC) eligibility criteria.

Detailed description

According to mathematical modeling, Voluntary Medical Male Circumcision (VMMC) has the potential to have a major impact on reducing HIV incidence in areas with high HIV prevalence and low prevalence of male circumcision, as is the case in Zimbabwe. Male circumcision devices have the potential to accelerate VMMC scale-up as the procedure is faster and simpler and can be safely performed by nurses. However, fear of social stigma and desire to avoid HIV testing remain potential barriers to those HIV+ men who would otherwise seek out VMMC. Study subjects (n=400) are HIV+ males who elect to undergo VMMC with PrePex as a study subject, and healthcare workers involved in implementation of PrePex on HIV+ male subjects. The aim of the study is to determine if PrePex can be used safely among HIV+ men with similar rates of adverse events to HIV-uninfected men. If so, then the barrier of mandatory HIV testing as part of VMMC could be removed, encouraging more men to undergo the procedure. Determining PrePex safety in HIV+ men would also allow both those with unknown status and those with positive status to undergo MC with PrePex. Determining the barriers to performing VMMC among HIV+ men among healthcare workers, if any, would also inform future policy.

Interventions

DEVICEPrePex male circumcision device

PrePex non-surgical male circumcision device applied to eligible, consenting HIV-infected men in Zimbabwe to determine the rate of adverse events as compared to non HIV-infected men.

Sponsors

Centers for Disease Control and Prevention
CollaboratorFED
Ministry of Health and Child Welfare, Zimbabwe
CollaboratorOTHER
University of Zimbabwe
CollaboratorOTHER
Zimbabwe Community Health Intervention Research Project (ZiCHIRe), Zimbabwe
CollaboratorUNKNOWN
University of Washington
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Intervention model description

The study is a one arm, open label, prospective, cohort field study to assess the safety and acceptability of PrePex device circumcision device when performed by certified PrePex circumcision providers (physicians & nurses) in a HIV-infected male population.

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Agrees to take an HIV test * HIV sero-positive * WHO HIV clinical stage 1 or 2 * Age 18 years and above * Agrees to be circumcised by PrePex * Able to understand the study procedures and requirements * Completes VMMC counseling * Agrees to return to the health care facility for follow-up visits or as instructed after this circumcision until complete healing 7 weeks from device application, or until cleared by a physician * Able to comprehend and freely give informed consent for study participation

Exclusion criteria

* Known bleeding/coagulation abnormality (excessive bleeding from nosebleeds, pulled tooth, or gums) * Uncontrolled diabetes (frequent treatment in a clinic or recent hospitalization for diabetes, frequent infections, hypertension, or kidney disease) * Active genital infection, anatomic abnormality or any other condition, which in the opinion of the investigator prevents the subject from undergoing circumcision using PrePex. * HIV sero-negative * HIV status unknown * WHO HIV stage 3 and above * Does not agree to PrePex

Design outcomes

Primary

MeasureTime frameDescription
Rate of adverse events among HIV+ males using PrePex deviceDevice application through complete wound healing (up to 90 days)The primary safety endpoint is the incidence of clinical adverse events and device-related incidents. * Clinical related incidents such as the following: * Site bleeding (bleeding that cannot be stopped with pressure of 30 seconds and requires suturing) * Penis-wide diffuse hematoma * Penis-wide diffuse edema * Incision site infection and related symptoms * Device-related incidents * Necrotic Process not initiated * Device does not remain in situ for the full 7 days (displacement) Note: This list of AEs is not exhaustive. Severity of AE will be determined according to PEPFAR/OGAC guidelines

Secondary

MeasureTime frameDescription
Abstinence until complete wound healingPost placement through complete healing (up to 90 days)Survival analysis of the timing of resumed sexual activity among subjects
Factors associated with abstinence until complete wound healingPost placement through complete healing (approximately 90 days for men who participate in the qualitative component)Patient factors (knowledge, attitudes) associated with abstinence from sex until wound healing is complete
Time to complete healingDevice placement through complete healing (up to 90 days)Mean of days for complete healing (continuous measure) and factors associated with number of days to complete healing (continuous outcome - multiple linear regression) * A completely healed circumcision as defined as, Intact epithelium (unbroken skin) covering the epithelial as judged by the provider on visual inspection, meaning that none of the following are present: sutures, scabbing, drainage, moisture, gaps between epithelial edges or ulceration.\] * Optional validation by objective analysis of wounds by photographs
Cosmetic resultsAt complete healing (up to 90 days)* Objective analysis of photographs * Glans fully exposed (complete circumcision)
Patient satisfaction3 time points: Prior to the procedure, two weeks post-procedure, and 90 days post-procedure Device placement through ~90 days post procedureA composite measure created among patients involved in the qualitative component who will be asked about satisfaction with the PrePex™ MC procedure, barriers and motivators to uptake of VMMC through PrePex™, opinions around convenience of the device, tolerance of potential odour and whether participants would recommend PrePex™ MC to others.
Pain assessment at key time pointsPlacement through complete healing (up to 90 days)* Subject's subjective pain, tingling, and discomfort related to PrePex when applying the system, wearing it and removing it. This will be assessed by numeric pain, tingling and discomfort VAS scale (Pain = VAS x Duration in Minutes). Measured in the post placement recovery at 15 minutes after placement, and then 1, 2, and 3 hours post placement. * As the necrotic process initiates, it is expected that some of subjects will have temporary discomfort during the first 2 hours after deployment (hence anaesthetic cream), which vanishes thereafter for the rest of the weeklong period when the device is in place. * Some pain is expected for a short duration (about 10 seconds) when extracting the Inner Ring during the removal procedure.
PrePex staff perceptions4 weeks after study implementation beginsResponses by clinicians to Likert scale questions on their beliefs about PrePex VMMC and using this procedure on HIV+ men
PrePex staff clinical skillsAt study closing,approximately 18 months after study initiationAn overall assessment of clinician skills as a group will be made by combining and reporting on several indirect measures. Included measures will be the proportion of clients experiencing AEs and the average procedure time. • Assessing AE monitoring and reporting systems through * completeness of reporting * timeliness
PrePex AE monitoring and reporting systemsDuring all active follow-up: 90 days for participantsAn ongoing assessment of AE monitoring and reporting systems through * completeness of reporting * timeliness of reports
PrePex staff perceptions of their clinical skills4 weeks after study implementation beginsCompilation report of Likert scale results from questions ascertaining PrepPex training, abilities, productivity and confidence.
PrePex staff satisfaction4 weeks after study implementation beginsCompilation report on responses to likert scales question on their satisfaction performing PrePex on HIV+ men.
Patient daily life3 time points: Prior to the procedure, two weeks post-procedure, and 90 days post-procedure Device placement through ~90 days post procedurePatients involved in the qualitative component will be asked about activities of daily living restrictions. They will complete a brief form that includes listing of activities of daily living, whether they are interrupted and for how long. This includes the average number of lost working hours (or potential working hours in unemployed). A composite measure will be created.

Countries

Zimbabwe

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026