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Retrospective/Prospective Pilot Study to Evaluate Efficacy and Safety of Switching to BIC/FTC/TAF in PWH With a Previous Virological Failure Under CAB/RPV LAI (BICPREVIR)

26. maj 2026 opdateret af: Cristina Mussini

This study is a pilot, multi-center, observational retrospective-prospective study, with two different Parts, as follows:

  1. Part 1(retrospective and prospective part): to evaluate efficacy and safety of switching to BIC/FTC/TAF in People living with HIV (PWH) who previously failed CAB/RPV LAI in the last three years and received in the last three years boosted PI since any INSTI mutations were detected on RNA and/or DNA through NGS at failure
  2. Part 2 (prospective part only): to evaluate efficacy and safety of switching directly to BIC/FTC/TAF in PWH who failed CAB/RPV LAI without any RAMs on RNA and/or DNA through NGS considered of potential relevance for bictegravir

Inclusion Criteria:

  • PWH with age >18 years
  • PWH with a confirmed virological failure on CAB/RPV LAI in the last three years
  • PWH without RAMs versus FTC and TAF

Study population: 30 subjects failing CAB/RPV LAI will be included in the study

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Detaljeret beskrivelse

BIC/FTC/TAF has been studied in treatment-naïve and virologically suppressed people with HIV (PWH) with a cumulative exposure of >3.1 million person-years of treatment.

Cabotegravir/Rilpivirine (CAB/RPV) is the first long-acting injectable (LAI) regimen approved and could be a game-changer in the world of HIV treatment, as it is the first ever HIV drug combination that does not need to be taken every day. However, although data from randomized clinical trials demonstrated the non-inferiority efficacy of CAB/RPV LAI in PWH switching from triple therapies, a higher rate of emergent resistance associated mutations (RAMs) to INSTI and NNRTIs emerged. The risk of acquired RAMs may be even higher in clinical practice, outside the controlled conditions of clinical trials. Although the rate of virological failure is quite rare (1%-2%), resistance to these types of drugs (especially INSTI) is a major problem for PWH, as it severely limits the future treatment options. In the light of these considerations, it becomes important to understand if the reduced susceptibility is really relevant in clinical practice, identifying the remaining treatment options; are PIs the only possible choice or is there still room for INSTIs? In this sense, bictegravir has the longest dissociation time from the target among INSTIs (retaining its inhibitory activity against HIV replication for a longer time) and showed an improved resistance profile compared with other INSTIs, including DTG, in vitro. Moreover, a recent in vitro phenotype assessment of isolates with a CAB failure-like patterns of RAMs showed that 54% and 40% of the isolates maintained susceptibility or partial susceptibility to bictegravir, respectively.

Finally, it is currently unknown if INSTI mutations will persist on DNA or if they will disappear.

This study is a pilot, multi-center, observational retrospective-prospective study, that will include 30 subjects failing CAB/RPV LAI. The primary objective is to describe drug efficacy at week 24. Secondary objectives are to describe drug efficacy at week 48, to describe drug failure at week 24 and week 48, to describe immunological changes at week 24 and week 48, to describe drug safety and to describe changes in patient's quality of life.

Undersøgelsestype

Observationel

Tilmelding (Anslået)

30

Kontakter og lokationer

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Studiekontakt

Studiesteder

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

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

30 subjects failing CAB/RPV LAI will be included in the study

Beskrivelse

Inclusion Criteria:

  • PWH with age >18 years
  • PWH with a confirmed virological failure on CAB/RPV LAI in the last three years
  • PWH without RAMs versus FTC and TAF

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
1
subjects failing CAB/RPV LAI switching to BIC/FTC/TAF per clinical practice

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Rate of virological suppression (proportion of PWH with HIV-RNA <50 copies/mL) at week 24 (after the switch to BIC/FTC/TAF)
Tidsramme: From enrollment to week 24
From enrollment to week 24

Sekundære resultatmål

Resultatmål
Tidsramme
Rate of virological suppression (proportion of PWH with HIV-RNA <50 copies/mL) at week 48
Tidsramme: From enrollment to week 48
From enrollment to week 48
Rate of virologic failure (2 consecutive VL ≥50 copies/mL) at weeks 24 and 48
Tidsramme: From enrollment to week 48
From enrollment to week 48
Change from baseline in CD4+ T-cell count (absolute and %) and CD4/CD8 ratio at weeks 24 and 48
Tidsramme: From enrollment to week 48
From enrollment to week 48
WHO grade 3-4 toxicity
Tidsramme: From enrollment to week 48
From enrollment to week 48
Rate of discontinuation of BIC/FTC/TAF for AEs
Tidsramme: From enrollment to week 48
From enrollment to week 48
Change in treatment satisfaction after the switch to BIC/FTC/TAF (changes in HIVTSQ)
Tidsramme: From enrollment to week 48
From enrollment to week 48

Samarbejdspartnere og efterforskere

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

Sponsor

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

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 (Anslået)

1. juli 2026

Primær færdiggørelse (Anslået)

30. juni 2027

Studieafslutning (Anslået)

30. juni 2027

Datoer for studieregistrering

Først indsendt

26. maj 2026

Først indsendt, der opfyldte QC-kriterier

26. maj 2026

Først opslået (Faktiske)

2. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

2. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

26. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • BICPREVIR
  • 2573 (Registry Identifier: Registro Studi Osservazionali)

Plan for individuelle deltagerdata (IPD)

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INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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