Stick2PrEP Cisgender Women and Trans Individuals (S2P:CWTI)

August 25, 2025 updated by: Magdalena Sobieszczyk, Columbia University

Stick2PrEP Women/Trans Individuals: Increasing Pre-Exposure Prophylaxis (PrEP) Uptake, Adherence, and Retention in Care, and Understanding PrEP Preferences Among Predominantly Black and Latinx Cisgender Women and Transgender Individuals

Taking a daily anti-HIV pill can protect people from HIV infection. This is called preexposure prophylaxis [PrEP]. Many cisgender women and trans individuals do not know this medication is available; others struggle to take the pill every day. It is important to understand attitudes and preferences about HIV prevention options, especially as new options become available. This study plans to evaluate preferences over time among cisgender women and trans individuals who are taking medication to prevent HIV, and among cisgender women and trans individuals who are not taking medication but are at risk of HIV. The investigators enroll up to 175 participants who visit the HIV prevention clinic, and the investigators will ask participants to complete questionnaires at regular follow up visits and between visits. This study may help the investigators understand how best to prevent HIV among people at risk.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Participants will receive online questionnaires about demographic characteristics, social determinants of health, and preferences regarding PrEP modalities. Qualitative, in-depth surveys will be conducted with 12 CWTI who decide not to start PrEP and 12 CWTI who decide to discontinue PrEP to explore the drivers behind those decisions. Participants who are taking PrEP will be offered the option of providing dried blood spot samples at clinic visits to measure PrEP levels and will receive an online questionnaire addressing their preferences regarding different modalities of measuring PrEP levels. The purpose of the HemaSpot™ kit is to understand the subjects' perceptions of using this kit for self-testing PrEP levels; this will inform future strategies regarding PrEP monitoring. Participants taking PrEP will also receive questionnaires regarding self-reported weekly PrEP adherence; they will then receive individualized text-message or email feedback based on their self-reported adherence in addition to standard-of-care retention/adherence counseling. Participants on PrEP can also elect to receive or emails messages to remind them to take PrEP and attend follow up appointments.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
175

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • New York
      • New York, New York, United States, 10032
        • Recruiting
        • Columbia University Medical Center
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Cisgender women and trans individuals who have an indication for PrEP and have 1) decided to take PrEP, 2) decided not to take PrEP, or 3) decided to discontinue PrEP

Exclusion Criteria:

  • Cannot provide informed consent
  • Living with HIV

Study Plan

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

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: Cisgender Women and Trans Individuals (CWTI)
Cisgender women and trans individuals (CWTI) who are taking PrEP, have considered and decided not to take PrEP, or who have discontinued PrEP.
Behavioral: Individualized Feedback
Participants taking PrEP will receive questionnaires regarding self-reported weekly PrEP adherence; they will then receive individualized text-message or email feedback based on their self-reported adherence.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Correlation Between PrEP modality preference and PrEP initiation/persistence in care
Time Frame: 12 months
Description of CWTI's preferences for different PrEP modalities and the relationship between preference and PrEP initiation/persistence in care. Preferences are evaluated using questionnaires developed by the study team; questions include ranked choice and Likert score responses. Persistence in care is measured by using the electronic medical record to track sexual health care visits over study period.
12 months
PrEP Measurement Preferences Scale Score
Time Frame: 12 months
CWTI's experience with and preferences regarding laboratory measurement techniques for PrEP. Preferences are evaluated based on a questionnaire developed by the study team; acceptability, feasibility, and perceived usefulness of varying PrEP measurement techniques are evaluated using a 5-point Likert scale. Scores range from 0 to 5, with a higher score indicating greater acceptability, feasibility, and usefulness.
12 months
Percentage of participants on PrEP who remain engaged in sexual health care
Time Frame: 12 months
Effect of individualized feedback on retention in care at 12 months. Retention in care is measured by using the electronic medical record to track sexual health care visits over the study period. Outcome will be measured by percentage of participants on PrEP who remain engaged in sexual health care (attending visits) at study center through 12 months after enrollment.
12 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Correlation of risk factors for low PrEP adherence and retention
Time Frame: 12 months
Risk factors that may be associated with poor retention in PrEP/sexual health care and low adherence to PrEP. Adherence to PrEP is measured by weekly self-report among participants taking PrEP. Retention in sexual healthcare is measured by review of the electronic medical record to track sexual health care visits over the study period.
12 months
Web-Based App User Satisfaction Score
Time Frame: 12 months
User comfort/satisfaction with the web-based app will be assessed using Likert scale responses. Scores range from 0 to 5 with a higher score indicating greater user comfort/satisfaction.
12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Columbia University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Merck Sharp & Dohme LLC

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Magdalena Sobieszczyk, MD, MPH, Columbia University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 25, 2021

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 25, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 25, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 8, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 8, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 21, 2021

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 2, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 25, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • AAAS6460

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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