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RecruitingNCT07728123S2PUpdated Aug 17, 2026

Screen2Prevent (S2P)

An interventional study of HIV screening strategies in HIV Infections, sponsored by Westat. Recruiting at 5 sites in United States. Open to participants aged 14 Years to 24 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-17.

Sponsored by Westat · Not applicable, Interventional, and Screening

From the registry’s dates

  • Started Jun 2026; still recruiting 4 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
84,000
Allocation
Randomized
Ages
14 Years to 24 Years
Sex
All
01

Study summary

Screen2Prevent is a study intended to improve HIV prevention and detection through implementation and evaluation of three different broad-scale HIV screening approaches a) targeted, b) universally offered opt-in, and c) universally offered opt-out in Emergency Departments (EDs) by leveraging digital health to identify and link adolescents seeking care in the ED to HIV Pre-Exposure Prophylaxis (PrEP)/Antiretroviral treatment (ART).

Read the detailed description

At each SC, each of the three screening strategies (targeted, universally offered opt-in, and universally offered opt-out) will be employed, one at a time, for a period of 8 months and a total study period of 24 months.

All patients 14-24 years of age that are seeking care in participating EDs during the study period will be given the opportunity to complete the computerized sexual health survey (cSHS) on a tablet. The cSHS asks patients to decide whether they want to be tested for HIV and contains questions based on the 2021 update to the CDC PrEP eligibility guidelines that stratify risk for HIV exposure and acquisition. The patient will agree (or not) to completing the cSHS on the tablet. The cSHS is not mandatory, so a patient may decline to use the tablet, and their parent or guardian may decline as well.

Throughout study activities (for all screening strategy phases), certain cSHS results will trigger real-time EHR-integrated decision support for clinicians on whether HIV testing should be ordered and whether counseling/prescription for PrEP should be provided. It also implements a text messaging platform with the patient for basic PrEP information and enrollment into a digital health PrEP linkage platform.

Additionally, all SCs will abstract baseline (plus 3 months) EHR data for all eligible patients to be used as a comparator in the analysis.

02

Conditions studied

  • HIV Infections

Keywords

  • HIV
  • adolescents
  • emergency department
  • preventive care
  • mHealth
  • PrEP
03

In context

HIV Infections

4,734 studies on the registry are indexed under HIV Infections; 244 are open to participants now.

This study's planned enrollment of 84,000 is above the median of 80 across 3,489 interventional studies indexed under HIV Infections.

Browse HIV Infections studies →

Lead sponsor

Westat is the lead sponsor of 23 studies on the registry; 6 are open to participants now.

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

04

Who can participate

Ages eligible
14 Years to 24 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

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

  • Age 14-24 years, inclusive
  • Present to the participating ED, regardless of chief complaint during the study period

Exclusion criteria

Exclusion Criteria:

  • None
05

Study design

Phase
Not applicable
Primary purpose
Screening
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
84,000 participants (estimated)

Study arms

  • Other
    1. Universally offered opt-in > Universally offered opt-out > Targeted

    The intervention includes three screening strategies (targeted, universally offered opt-in, and universally offered opt-out) which will each be employed, one at a time, for a period of 8 months.

    Other: HIV screening strategies

  • Other
    2. Universally offered opt-out > Universally offered opt-in > Targeted

    The intervention includes three screening strategies (targeted, universally offered opt-in, and universally offered opt-out) which will each be employed, one at a time, for a period of 8 months.

    Other: HIV screening strategies

  • Other
    3. Universally offered opt-in > Targeted > Universally offered opt-out

    The intervention includes three screening strategies (targeted, universally offered opt-in, and universally offered opt-out) which will each be employed, one at a time, for a period of 8 months.

    Other: HIV screening strategies

  • Other
    4. Universally offered opt-out > Targeted > Universally offered opt-in

    The intervention includes three screening strategies (targeted, universally offered opt-in, and universally offered opt-out) which will each be employed, one at a time, for a period of 8 months.

    Other: HIV screening strategies

  • Other
    5. Targeted > Universally offered opt-out > Universally offered opt-in

    The intervention includes three screening strategies (targeted, universally offered opt-in, and universally offered opt-out) which will each be employed, one at a time, for a period of 8 months.

    Other: HIV screening strategies

  • Other
    6. Targeted > Universally offered opt-in > Universally offered opt-out

    The intervention includes three screening strategies (targeted, universally offered opt-in, and universally offered opt-out) which will each be employed, one at a time, for a period of 8 months.

    Other: HIV screening strategies

Interventions

  • OtherHIV screening strategies

    The intervention includes three screening strategies (targeted, universally offered opt-in, and universally offered opt-out) which will each be employed, one at a time, for a period of 8 months. A targeted screening approach is defined as screening those who are at increased likelihood for acquiring HIV. Alternatively, a universally offered screening approach is defined as screening all, regardless of behavior informing risk. There are two types of universally offered screening, opt-in and opt-out. With opt-in screening, all patients are offered screening, which they may then agree to undergo. Opt-out screening consists of notifying patients that the test will be conducted unless they explicitly decline. Each screening strategy implements the cSHS, a text messaging platform, and Clinical Decision Support for identification of youth needing HIV treatment/prevention and linkage to services.

06

What researchers measure

Primary outcomes

  1. Monthly HIV detection rates per 1,000 eligible patients

    Compare the rate of HIV detection between each screening strategy (targeted, universal opt-in, universal opt-out) to baseline using the all patients analysis set.

    Time frame: 36 months

  2. Rapid PrEP/ART initiation (defined by prescription within 72 hours of ED discharge)

    Compare the rates of rapid start of PrEP/ART, defined as PrEP/ART prescription within 72 hours of ED discharge, between adolescents and young adults who visit the ED prior to implementation of cSHS and those who visit after implementation of cSHS using the all patients analysis set.

    Time frame: 36 months

Secondary outcomes

  1. Cost per HIV case detected

    Compare the cost per HIV case detected between each of the screening strategies and baseline using the all patients analysis set.

    Time frame: 36 months

  2. Rapid PrEP/ART initiation (defined by prescription within 72 hours of ED discharge)

    Compare the proportions of rapid start of PrEP/ART, defined as PrEP/ART prescription within 72 hours of ED discharge, among those who visit the ED during implementation of cSHS between those who engage in ScreenWell versus those who do not using the cSHS Analysis Set.

    Time frame: 36 months

07

Study locations

5 of 5 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jun 2026 (actual). Primary completion is estimated for Oct 2028, 28 months after the start.

Of 393 non-industry interventional studies with no phase under HIV Infections, half reached primary completion within 28 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 45. This study's planned 28 months is close to that.

Counting every sponsor, half of 402 studies reached it within 28 months; a quarter within 16 and three quarters within 45.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 22, 2026
First posted
Jul 27, 2026
StartActual
Jun 16, 2026
Primary completionEst.
Oct 31, 2028
CompletionEst.
Oct 31, 2028
Last update
Aug 17, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07728123
Lead sponsor
Westat
Responsible party
Sponsor
First posted
Jul 27, 2026
Start date
Jun 16, 2026
Primary completion
Oct 31, 2028 (estimated)
Completion
Oct 31, 2028 (estimated)
Last update
Aug 17, 2026

Study contacts

Erin Ricketts
Contact
erinricketts@westat.com
240-453-2786
Nancy Liu
Contact
NancyLiu@westat.com
718-980-3937

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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