An observational study in PrEP Uptake, sponsored by Centre for Infectious Disease Research in Zambia. Completed at 1 site in Zambia. Open to female participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-25.
Sponsored by Centre for Infectious Disease Research in Zambia · Observational
WiSSPr is a prospective observational cohort study grounded in community-based participatory research principles with a community advisory board (CAB) of key population (KP) civil society organi sations (KP-CSOs) and the Ministry of Health (MoH).
WiSSPr is a prospective observational cohort study grounded in community-based participatory research principles with a community advisory board (CAB) of key population (KP) civil society organi sations (KP-CSOs) and the Ministry of Health (MoH). The study will administer a one-time psychosocial survey vetted by the CAB and follow 300 WESW in the electronic medical record for three months to measure PrEP initiation (#/% ever taking PrEP) and persistence (immediate discontinuation and a medication possession ratio). The study will conduct in-depth interviews with a purposive sample of 18 women, including 12 WESW and 6 peer navigators who support routine HIV screening and PrEP delivery, in two community hubs serving KPs since October 2021. The study seeks to value KP communities as equal contributors to the knowledge production process by actively engaging KP-CSOs throughout the research process. Expected outcomes include quantitative measures of PrEP initiation and persistence among WESW, and qualitative insights into the enablers and barriers to PrEP use informed by participants' lived experiences. https://doi.org/10.1136/bmjopen-2023-080218
266 studies on the registry are indexed under Social Stigma; 66 are open to participants now.
This study's enrollment of 299 is above the median of 260 across 44 observational studies indexed under Social Stigma.
Browse Social Stigma studies →Centre for Infectious Disease Research in Zambia is the lead sponsor of 41 studies on the registry; 5 are open to participants now.
Counted across the registry records on this site, refreshed daily.
The criteria were revised on the registry on Sep 25, 2026. See what changed
The study population is composed of adult WESW who are living or working within the catchment areas of two community hubs located within urban Lusaka. Based on CIDRZ's prior published work, we anticipate that the study population will be comprised largely (63%) of younger women (18 - 29 years old).
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.
Participants must meet all of the following criteria:
Exclusion Criteria
Participants will be excluded if they meet any of the following criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
women who initiate on PrEP
Drug: PrEP
women who refuse PrEP
oral PrEP
PrEP initiation (#/% ever taken PrEP)
PrEP initiation (Number or percentage of Women Engaging in Sex Work (WESW) initiating on PrEP)
Time frame: 3 months
PrEP Persistence (#/ % eligible refills obtained until first discontinuation)
PrEP persistence. Number or percentage of women engaging in sex work with high levels of stigma who will persist on PrEP
Time frame: 3 months
Plan to share: No — Vulnerable population of sex workers in a country where sex work is largely criminalized, and there is a risk of harm if the data is identifiable even with common identifiers like name is removed.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is completed, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.
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Centre for Infectious Disease Research in Zambia