ClinicalTrials.gg
Enrolling by invitationNCT06334341MOST:PrEPUpdated Sep 21, 2026

A Multilevel, Multiphase Optimization Strategy for PrEP (MOST:PrEP)

An interventional study of Computer-based simulation training for providers and Best Practice Alert in HIV Seropositivity, sponsored by Henry Ford Health System. Enrolling by invitation at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-21.

Sponsored by Henry Ford Health System · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
1,380
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

What is known: There are 1.2 million people in the US who meet the indications for PrEP; yet, disparities exist in uptake. For example, only 9% of Black and 16% of Latino individuals, compared to 65% of White individuals, have been prescribed PrEP. At Henry Ford Health (HFH) system, only 10% of eligible patients have been prescribed PrEP. Primary care is an ideal setting for PrEP to be offered as an HIV prevention method since providers see large numbers of patients who are HIV negative, with some who are at increased risk for HIV, and the primary care setting is often the point of entry to the healthcare system. The multiphase optimization strategy (MOST) framework is a novel, innovative way to identify an efficient intervention. What will be done: In this optimization trial, the investigators will test the effectiveness of intervention components, alone and in combination, on new PrEP prescriptions in primary care at HFH. First, feedback will be generated on context-specific (system and individual level) factors for intervention component delivery via focus groups with providers (n=15) and patients eligible for PrEP (n=30). Then, four intervention components will be tested in an optimization trial, with 16 conditions being implemented at 32 clinics. Finally, feedback will be generated on the factors that affected implementation via semi-structured interviews with providers (n=30) and patients (n=30). Participants will be primary care providers (PCPs) and patients eligible for PrEP in Henry Ford Health System. Clinics will be randomized (yes/no) to receive any combination of provider and patient intervention components. Provider intervention components include computer-based simulation training and/or best practice alerts delivered via the electronic health record (EHR). Patient intervention components include HIV risk assessment and/or PrEP informational video - both delivered via the EHR. Primary outcome is the rate of new PrEP prescriptions at the clinic level. Secondary outcomes will include PrEP maintenance, number of HIV tests ordered by a PCP, and number of PCPs trained. Sub analyses will test which factors moderate (e.g., patient sex, race, age, gender, sexual orientation) or mediate (e.g., perceived HIV risk, provider and patient PrEP knowledge) PrEP uptake, focusing on priority populations and disparities in rates of PrEP prescription. Implications: 1) Understanding which intervention components lead to increased PrEP prescriptions will represent an important advance in HIV prevention efforts. 2) Optimizing a multi-level intervention for providers and patients to increase PrEP prescriptions would lead to a new, efficient, evidence-based option. 3) Determining what factors are related to PrEP uptake will help reduce disparities in PrEP initiation among those most in need. 4) Understanding the context specific factors related to intervention component implementation will help identify best methods for replication/adaptation in other healthcare systems.

Read the detailed description

Inclusion criteria for provider participants are: 1) ≥ 18-years old; 2) employed at HFH in primary care, family medicine, or internal medicine; 3) eligible to write prescriptions in the state of MI.

Inclusion criteria for patient participants are: 1) ≥ 18 years old; 2) have an appointment with a Henry Ford primary care clinic during the study period; 3) have an electronic health record (EHR) account; 4) eligible for PrEP prescription.

Exclusion criteria for providers are: 1) not a HFH primary care provider; 2) does not have prescribing privileges in the state of Michigan.

Exclusion criteria for patient participants include: 1) currently prescribed or taking PrEP; 2) living with HIV.

02

Conditions studied

  • HIV Seropositivity

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Keywords

  • Preexposure Prophylaxis
03

In context

HIV Seropositivity

194 studies on the registry are indexed under HIV Seropositivity; 11 are open to participants now.

This study's planned enrollment of 1,380 is above the median of 105 across 114 interventional studies indexed under HIV Seropositivity.

Browse HIV Seropositivity studies →

Lead sponsor

Henry Ford Health System is the lead sponsor of 303 studies on the registry; 50 are open to participants now.

Of its 37 completed or terminated interventional studies of FDA-regulated products, 26 (70%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
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

  • Provider:≥ 18-years old
  • Provider: employed at HFH as a primary care provider
  • Provider: eligible to write prescriptions in the state of Michigan
  • Patient: ≥ 18 years old
  • Patient: have an appointment with a Henry Ford primary care clinic during the study period
  • Patient: have an EHR account
  • Patient: meet the indications for PrEP

Exclusion criteria

Exclusion Criteria:

  • Provider: not a HFH primary care provider
  • Provider: does not have prescribing privileges in the state of Michigan
  • Patient: currently prescribed or taking PrEP
  • Patient: living with
Terms in these criteria, in plain language(1)

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.

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.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Factorial assignment
Masking
Double (Participant, Care provider)
Enrollment
1,380 participants (estimated)

Study arms

  • No intervention
    No intervention

    No intervention

  • Experimental
    Video

    Patient PrEP Video only

    Behavioral: PrEP Informational Video

  • Experimental
    Risk Assessment

    Patient Risk Assessment only

    Behavioral: HIV Risk Assessment

  • Experimental
    Risk Assessment and Video

    Patient Risk Assessment and Patient PrEP Video

    Behavioral: HIV Risk Assessment · Behavioral: PrEP Informational Video

  • Experimental
    Best Practice Alert

    Best Practice Alert only

    Behavioral: Best Practice Alert

  • Experimental
    Best Practice Alert and Video

    Best Practice Alert and Patient PrEP Video

    Behavioral: Best Practice Alert · Behavioral: PrEP Informational Video

  • Experimental
    Best Practice Alert and Risk Assessment

    Best Practice Alert and Patient Risk Assessment

    Behavioral: Best Practice Alert

  • Experimental
    Best Practice Alert, Risk Assessment and Video

    Best Practice Alert, Patient Risk Assessment, and Patient PrEP Video

    Behavioral: Best Practice Alert · Behavioral: HIV Risk Assessment · Behavioral: PrEP Informational Video

  • Experimental
    Training

    Provider Training

    Behavioral: Computer-based simulation training for providers

  • Experimental
    Training and Video

    Provider Training and Patient PrEP Video

    Behavioral: Computer-based simulation training for providers · Behavioral: PrEP Informational Video

  • Experimental
    Training and Risk Assessment

    Provider Training and Patient Risk Assessment

    Behavioral: Computer-based simulation training for providers · Behavioral: HIV Risk Assessment

  • Experimental
    Training, Risk Assessment, and Video

    Provider Training, Patient Risk Assessment, and Patient PrEP Video

    Behavioral: Computer-based simulation training for providers · Behavioral: HIV Risk Assessment · Behavioral: PrEP Informational Video

  • Experimental
    Training and Best Practice Alert

    Provider Training and Best Practice Alert

    Behavioral: Computer-based simulation training for providers · Behavioral: Best Practice Alert

  • Experimental
    Training, Best Practice Alert, and Video

    Provider Training, Best Practice Alert, and Patient PrEP Video

    Behavioral: Computer-based simulation training for providers · Behavioral: Best Practice Alert · Behavioral: PrEP Informational Video

  • Experimental
    Training, Best Practice Alert, and Risk Assessment

    Provider Training, Best Practice Alert, and Patient Risk Assessment

    Behavioral: Computer-based simulation training for providers · Behavioral: Best Practice Alert · Behavioral: HIV Risk Assessment

  • Experimental
    Training, Best Practice Alert, Risk Assessment, and Video

    Provider Training, Best Practice Alert, Patient Risk Assessment, and Patient PrEP Video

    Behavioral: Computer-based simulation training for providers · Behavioral: Best Practice Alert · Behavioral: HIV Risk Assessment · Behavioral: PrEP Informational Video

Interventions

  • BehavioralComputer-based simulation training for providers

    A Computer-Based Simulation training for providers, based on the Centers for Disease Control and Prevention "Guide for Healthcare Professional: Discussing Sexual Health with Your Patients", current PrEP information, and the Social Cognitive Theory. This is a single-session, 30-minute training module contains educational information with animated narration about PrEP, how to take a sexual health history, understanding internal bias, potential patient barriers to PrEP as well as recorded video-simulated encounters, in which providers view different types of patient/provider interactions.

  • BehavioralBest Practice Alert

    A Best Practice Alert will alert providers to patients who are part of the Centers for Disease Control and Prevention PrEP priority populations.

  • BehavioralHIV Risk Assessment

    A risk assessment tool that considers the behaviors - i.e., types of sexual activities, protective behaviors (condoms, PrEP, ART), and other factors (HIV status, sexually transmitted infections) of the respondent.

  • BehavioralPrEP Informational Video

    A short informational video, tailored to the local Detroit context with themes that will focus on introducing PrEP, stigma surrounding taking PrEP, and potential barriers and how to overcome them.

06

What researchers measure

Primary outcomes

  1. Clinic-Level PrEP Prescription

    The number of new PrEP prescriptions written within 6-months of the study-associated patient appointment. It is defined as a new documented prescription in the patient electronic health records for PrEP (daily pill or injection) at any date between the initial study primary care appointment plus 180 days.

    Time frame: Year 1 and Year 5 electronic health record data pull.

Secondary outcomes

  1. PrEP Knowledge

    PrEP knowledge will be measured by 6-items assessing PrEP dosing frequency, approved FDA medications, HIV antibody testing prior to PrEP initiation, HIV testing frequency while on PrEP, contraindications to prescribing PrEP, and routine standard of care practices for patients taking PrEP

    Time frame: Provider pre-post survey and patient demographic and 6- month surveys

  2. PrEP awareness

    PrEP awareness will be measured by the statement "there is a pill (drug/medication) that a person can take to prevent transmission of HIV from an infected (HIV positive) sex partner to an uninfected (HIV negative) partner." with responses true/false, don't know.

    Time frame: Provider pre-post survey and patient demographic and 6- month surveys

  3. PrEP prescribing comfort

    PrEP prescribing comfort will be measured by 9- items from the PrEP Information, Motivation, and Behaviors survey.

    Time frame: Pre-intervention and immediately after the intervention for providers

  4. PrEP prescribing intentions

    PrEP prescribing intentions will be measured by 8- items from the PrEP Information, Motivation, and Behaviors survey.

    Time frame: Pre-intervention and immediately after the intervention for providers

07

Study locations

1 site
08

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 2024 (actual). Primary completion is estimated for Apr 2028, 45 months after the start.

Of 28 non-industry interventional studies with no phase under HIV Seropositivity, half reached primary completion within 23 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 46. This study's planned 45 months is above that.

Counting every sponsor, half of 29 studies reached it within 23 months; a quarter within 8 and three quarters within 46.

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

Registered
Mar 18, 2024
First posted
Mar 28, 2024
StartActual
Jun 19, 2024
Primary completionEst.
Apr 3, 2028
CompletionEst.
Jun 30, 2028
Last update
Sep 21, 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 Sep 21, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06334341
Responsible party
Elizabeth Lockhart (Principal Investigator, Henry Ford Health System) — Principal investigator
First posted
Mar 28, 2024
Start date
Jun 19, 2024
Primary completion
Apr 3, 2028 (estimated)
Completion
Jun 30, 2028 (estimated)
Last update
Sep 21, 2026

Study contacts

Elizabeth Lockhart, PhD
principal investigator · Henry Ford Health

Oversight

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

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