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Tail-Prep-undersøgelsen

16. september 2026 opdateret af: Kathrine Meyers, Columbia University

Tail-Prep-undersøgelsen: Acceptabilitet og gennemførlighed af en skræddersyet adhæsionsintervention til sikker seponering af langtidsvirkende prep

The goal of the TAIL-PrEP study is to understand how to support the safe discontinuation of injectable long-acting cabotegravir (cab-LA) and lenacapavir (LEN) while maximizing the public health impact of biomedical HIV prevention interventions. In Aim 1, the study will pilot test and assess the acceptability and feasibility of the TAIL-PrEP intervention: for participants discontinuing cab-LA, this will consist of monthly cabotegravir drug level monitoring to provide personalized HIV prevention coaching, for participants considering discontinuing cab-LA or LEN, this will consist of a one-time personalized HIV prevention coaching session. In Aim 2, the study will refine the TAIL-PrEP intervention and implementation strategy based on findings from the pilot study.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Oral PrEP is highly effective but underutilized, with only 25% of individuals eligible for PrEP in the US having a prescription. Recent approval of cabotegravir-LA (cab-LA), a long-acting injectable integrase inhibitor and the first long-acting injectable PrEP, and lenacapavir (LEN), a long-acting class capsid inhibitor presents an opportunity to increase uptake. However, the long and variable half-life of cab-LA across different individuals after discontinuation (called the "tail") poses an implementation challenge. During the tail, cabotegravir levels are sub-therapeutic but could select for integrase-inhibitor resistance if the patient were to acquire HIV. This concern about the tail presents a barrier to providers prescribing cab-LA, potentially limiting the contribution of cab-LA to achieving End the HIV Epidemic targets and PrEP uptake and HIV infection. Currently, to mitigate this risk, individuals are advised to use oral PrEP for up to and beyond 12 months after stopping cab-LA injections if they have an ongoing risk of becoming infected with HIV. However, a risk mitigation strategy that requires daily oral PrEP may not be feasible or acceptable to many patients who started injectable PrEP precisely because they were unable or unwilling to adhere to a daily medication. LEN does not pose the same issue with a drug tail during discontinuation, but patients discontinuing LEN may need guidance on how to switch to other HIV prevention strategies rather than discontinuing HIV prevention altogether. In Aim 1, the study will pilot test and assess the acceptability and feasibility of the TAIL-PrEP intervention: for participants discontinuing cab-LA, this will consist of monthly cabotegravir drug level monitoring to provide personalized HIV prevention coaching, for participants considering discontinuing cab-LA or LEN, this will consist of a one-time personalized HIV prevention coaching session. In Aim 2, the study will refine the TAIL-PrEP intervention and implementation strategy based on findings from the pilot study.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

30

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

    • New York
      • New York, New York, Forenede Stater, 10032
        • Rekruttering
        • Columbia University Irving Medical Center / NewYork-Presbyterian Hospital
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion criteria:

  • At least 18 years of age
  • HIV-negative (self-report)
  • Able to speak and read in English
  • Have access to an internet-connected device capable of running the online video conferencing platform
  • Have a private location at which to take online conference calls

Participants considering discontinuing cab-LA or LEN have the following additional inclusion criteria:

- Considering discontinuing cab-LA or LEN

Participants discontinuing cab-LA have the following additional inclusion criteria:

  • Have discontinued cab-LA injections within the last three months
  • Not currently on cab-LA injections
  • Able to receive and send monthly packages
  • The study period will end for patient participants once the monthly blood draw result indicates that cab-LA levels are not detectable (estimated average of 6 months across all patients) or after 6 months of the study, whichever comes first. If at 6 months of study participation, cab-LA levels are still detectable and participants adhered to at least 50% of study activities (self-collecting and mailing monthly blood samples, completing monthly surveys, attending monthly coaching sessions), participants will be invited to participate in the study for an additional 6 months, for a total of up to 12 study visits.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Discontinued cab-LA

Patients who recently discontinued cab-LA who receive the TAIL-PrEP intervention for patients who discontinued cab-LA

The TAIL-PrEP intervention is comprised of two components: (1) monthly cab-LA monitoring with specimens self-collected by patient and mailed to a lab for processing; and (2) monthly HIV prevention coaching with personalized cab-LA feedback.

Eksperimentel: Considering discontinuing cab-LA

Patients who are considering discontinuing cab-LA who receive the TAIL-PrEP intervention for patients considering discontinuing cab-LA

The TAIL-PrEP intervention is comprised of a one-time HIV prevention coaching session to guide patients considering discontinuing cab-LA on their HIV prevention options.

Eksperimentel: Considering discontinuing LEN

Patients who are considering discontinuing LEN who receive the TAIL-PrEP intervention for patients considering discontinuing LEN

The TAIL-PrEP intervention is comprised of a one-time HIV prevention coaching session to guide patients considering discontinuing LEN on their HIV prevention options.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Acceptability among Patients
Tidsramme: 6 months

Acceptability of the intervention will be assessed using the validated Acceptability of Intervention Measure (AIM). AIM is a 4-item scale where respondents rate each item using a 5-point ordinal scale that ranges from 1="completely disagree" to 5="completely agree". The AIM is scored by averaging responses across the 4 items. A higher average score indicates greater acceptability, which is a better outcome.

6 months
Feasibility among Patients
Tidsramme: 6 months

Feasibility of the intervention will be assessed using the validated Feasibility of Intervention Measure (FIM). FIM is a 4-item scale where respondents rate each item using a 5-point ordinal scale that ranges from 1="completely disagree" to 5="completely agree". The FIM is scored by averaging responses across the 4 items. A higher average score indicates greater feasibility, which is a better outcome.

6 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Adherence to TAIL-PrEP intervention
Tidsramme: 6 months

Adherence to the intervention will be assessed by calculating the proportion of intervention components completed out of components possible.

6 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Kathrine A Meyers, DrPH, Columbia University

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

3. juni 2026

Primær færdiggørelse (Anslået)

1. december 2026

Studieafslutning (Anslået)

1. marts 2027

Datoer for studieregistrering

Først indsendt

6. marts 2025

Først indsendt, der opfyldte QC-kriterier

6. marts 2025

Først opslået (Faktiske)

11. marts 2025

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

21. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

16. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • AAAU7044
  • 1R21MH133755-01 (U.S. NIH-bevilling/kontrakt)

Plan for individuelle deltagerdata (IPD)

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