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Pre-Exposure Prophylaxis Study of Lenacapavir in Cisgender Men, Transgender Women, Transgender Men, and Gender Nonbinary People at Risk for HIV Infection (PURPOSE 2)

11 settembre 2026 aggiornato da: Gilead Sciences

Uno studio di fase 3, in doppio cieco, multicentrico, randomizzato per valutare l'efficacia e la sicurezza del lenacapavir sottocutaneo due volte all'anno ad azione prolungata per la profilassi pre-esposizione all'HIV negli uomini cisgender, nelle donne transgender, negli uomini transgender e nelle persone non binarie di genere ≥ 16 anni di Età che hanno rapporti sessuali con partner maschili e sono a rischio di infezione da HIV

The goal of this study is to evaluate the efficacy of the study drugs, lenacapavir (LEN) in preventing HIV infection, in participants ≥ 16 years of age who have condomless receptive anal sex with partners assigned male at birth and are at risk for HIV-1 infection.

The primary objective of this study is to evaluate the efficacy of LEN for HIV-1 pre-exposure prophylaxis (PrEP) in participants ≥ 16 years of age who have condomless receptive anal sex with partners assigned male at birth at risk of HIV-1 infection.

Panoramica dello studio

Tipo di studio

Interventistico

Iscrizione (Effettivo)

3292

Fase

  • Fase 3

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

      • Buenos Aires, Argentina, 1072
        • Hospital General de Agudos JM Ramos Mejia
      • Buenos Aires, Argentina, B7600
        • Instituto de Investigaciones Clinicas Mar del Plata
      • Buenos Aires, Argentina, 1202
        • Fundacion Huesped
      • Belo Horizonte - MG, Brasile, 30130-100
        • Unidade de Pesquisa Clinica em Vacinas (UPqVac) da Faculdade de Medicina da Universidade
      • Canela-Salvador, Brasile, 40110-060
        • Fundação Bahiana de Infectologia
      • Manauas, Brasile, 69040-000
        • Fundação de Medicina Tropical Doutor Heitor Vieira Dourado / Fundação Medicina Tropical do Amazonas - FMT/IMT/AM
      • Nova Iguaçu, Brasile, 26030-380
        • Hospital General de Nova Iguaçu - HGNI
      • Porto Alegre, Brasile, RS 91350 200
        • Grupo Hospitalar Conceição/ Hospital Nossa Senhora da Conceição S.A.
      • Rio de Janeiro, Brasile, 21040-360
        • Instituto Nacional de Infectologia Evandro Chagas / Fundação Oswaldo Cruz - INI FIOCRUZ
      • São Paulo, Brasile, 01246-903
        • Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
      • São Paulo, Brasile, 04121-000
        • Centro de Referência e Treinamento DST/AIDS
      • São Paulo, Brasile, 06519-332
        • Center for Management and Research. SPDM-Paulista Association for the Development of Medicine-Hospital São Paulo/Federal
      • Guadalajara C.P., Messico, 44160
        • Centro de Investigacion Farmaceutica Especializada de Occidente S.C.
      • Barranco, Perù, 15063
        • Asociacion Civil Impacta Salud y Educacion - Sede Barranco
      • Callao, Perù, 7006
        • Instituto de Medicina Tropical "Daniel Alcides Carrion", Facultad de Medicina Humana, UNMSM
      • Iquitos, Perù
        • Asociacion Civil Selva Amazonica
      • Lima, Perù, 15001
        • Via Libre
      • Lima, Perù, 15088
        • Asociacion Civil Impacta Salud y Educacion - Sede San Miguel
    • PR
      • San Juan, PR, Porto Rico, 00717
        • Ararat Research Center
      • San Juan, PR, Porto Rico, 00909
        • Centro Ararat- San Juan
    • Alabama
      • Birmingham, Alabama, Stati Uniti, 35233
        • UAB Sexual Health Research Clinic
    • California
      • Loma Linda, California, Stati Uniti, 92354
        • Loma Linda University Clinical Trial Center Clinic
      • Los Angeles, California, Stati Uniti, 90069
        • Mills Clinical Research
      • Los Angeles, California, Stati Uniti, 90036
        • Ruane Clinical Research Group Inc.
      • Los Angeles, California, Stati Uniti, 90038
        • UCLA CBAM Vine Street Clinic
      • Los Angeles, California, Stati Uniti, 90059
        • Charles R. Drew University of Medicine and Science (CDU) - Clinical Translational Research Center (CTRC)
      • Los Angeles, California, Stati Uniti, 90502
        • The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
      • Palm Springs, California, Stati Uniti, 92262
        • BIOS Clinical Research
      • San Diego, California, Stati Uniti, 92103
        • UCSD Anti Viral Research Center
      • San Francisco, California, Stati Uniti, 94102
        • Optimus Medical Group
      • San Francisco, California, Stati Uniti, 94102
        • Bridge HIV at the San Francisco Department of Public Health
    • Colorado
      • Aurora, Colorado, Stati Uniti, 80045
        • University of Colorado Clinical and Translational Research Centers (CTRC)
    • Connecticut
      • New Haven, Connecticut, Stati Uniti, 06510
        • Yale University, School of Medicine
    • District of Columbia
      • Washington D.C., District of Columbia, Stati Uniti, 20009
        • Whitman-Walker Institute Inc.
      • Washington D.C., District of Columbia, Stati Uniti, 20017
        • Washington Health Institute
    • Florida
      • Fort Lauderdale, Florida, Stati Uniti, 33308
        • Therafirst Medical Center
      • Fort Lauderdale, Florida, Stati Uniti, 33316
        • Gary Richmond, MD, PA
      • Ft. Pierce, Florida, Stati Uniti, 34982
        • Midway Immunology & Research Center, LLC
      • Jacksonville, Florida, Stati Uniti, 32207
        • CAN Community Health Clinic
      • Miami, Florida, Stati Uniti, 33136
        • University of Miami Miller School of Medicine Division of Infectious Disease Research - Converge Miami
      • Miami Gardens, Florida, Stati Uniti, 33055
        • CAN Community Health
      • Orlando, Florida, Stati Uniti, 32803
        • Orlando Immunology Center
      • Sarasota, Florida, Stati Uniti, 34237
        • CAN Community Health
    • Georgia
      • Atlanta, Georgia, Stati Uniti, 30303
        • Emory University
      • Atlanta, Georgia, Stati Uniti, 30308
        • Emory University Hospital Midtown Infectious Disease Clinic
      • Atlanta, Georgia, Stati Uniti, 30030
        • The Hope Clinic at Emory University
    • Illinois
      • Chicago, Illinois, Stati Uniti, 60613
        • Howard Brown Health Center
      • Chicago, Illinois, Stati Uniti, 60612
        • RMR Core Center
      • Chicago, Illinois, Stati Uniti, 60612
        • University of Illinois at Chicago, Department of Medicine, Division of Infectious Diseases, Project WISH
    • Indiana
      • Indianapolis, Indiana, Stati Uniti, 46202
        • Indiana University Infectious Diseases Research
    • Kentucky
      • Lexington, Kentucky, Stati Uniti, 40503
        • Baptist Health Lexington
      • Louisville, Kentucky, Stati Uniti, 40241
        • Norton Infectious Disease Specialists
    • Louisiana
      • New Orleans, Louisiana, Stati Uniti, 70119
        • LSU-CrescentCare Sexual Health Center- New Orleans Community Health Center
    • Maryland
      • Baltimore, Maryland, Stati Uniti, 21287
        • Johns Hopkins University School of Medicine
    • Massachusetts
      • Boston, Massachusetts, Stati Uniti, 02215
        • The Fenway Institute
    • Michigan
      • Berkley, Michigan, Stati Uniti, 48072
        • Be Well Medical Center
      • Detroit, Michigan, Stati Uniti, 48202
        • Henry Ford Hospital
    • Mississippi
      • Jackson, Mississippi, Stati Uniti, 39202
        • Open Arms Healthcare Center
    • Missouri
      • Kansas City, Missouri, Stati Uniti, 64111
        • KC CARE Health Center
    • New Jersey
      • Newark, New Jersey, Stati Uniti, 07102
        • St. Michael's Medical Center
      • Somers Point, New Jersey, Stati Uniti, 08244
        • South Jersey Infectious Disease
    • New York
      • New York, New York, Stati Uniti, 10029
        • Icahn School of Medicine at Mount Sinai- Mount Sinai Downtown
    • North Carolina
      • Chapel Hill, North Carolina, Stati Uniti, 27514
        • NC TraCS Institute - CTRC; University of North Carolina at Chapel Hill
      • Greensboro, North Carolina, Stati Uniti, 27401
        • Cone Health/Regional Center for Infectious Disease Research Center
      • Winston-Salem, North Carolina, Stati Uniti, 27103
        • Wake Forest University Health Sciences
    • Ohio
      • Cincinnati, Ohio, Stati Uniti, 45267
        • University of Cincinnati
      • Columbus, Ohio, Stati Uniti, 43210
        • The Ohio State University Wexner Medical Center
    • Pennsylvania
      • Philadelphia, Pennsylvania, Stati Uniti, 19104
        • Penn Prevention Unit
      • Philadelphia, Pennsylvania, Stati Uniti, 19107
        • Philadelphia FIGHT Community Health Centers, Jonathan Lax Treatment Center
    • South Carolina
      • Charleston, South Carolina, Stati Uniti, 29425
        • Medical University of South Carolina, Infectious Disease Clinic
      • Columbia, South Carolina, Stati Uniti, 29203
        • Prisma Health-Midlands Clinical Research Unit
      • Greenville, South Carolina, Stati Uniti, 29605
        • Prisma Health Internal Medicine Clinic
    • Tennessee
      • Memphis, Tennessee, Stati Uniti, 38105
        • St Jude Children's Research Hospital
      • Memphis, Tennessee, Stati Uniti, 38103
        • Methodist University Hospital/University of Tennessee Health Science Center, Clinical Research Center
      • Nashville, Tennessee, Stati Uniti, 37208
        • Meharry Medical College Clinical and Transitional Research Center
    • Texas
      • Austin, Texas, Stati Uniti, 78705
        • Central Texas Clinical Research
      • El Paso, Texas, Stati Uniti, 79915
        • Centro San Vincente
      • Houston, Texas, Stati Uniti, 77098
        • The Crofoot Research Center, INC
      • Houston, Texas, Stati Uniti, 77009
        • UT Health Science Center at Houston
    • Washington
      • Seattle, Washington, Stati Uniti, 98104
        • Ofiice of Dr. Peter Shalit, MD
      • Cape Town, Sud Africa, 7925
        • Desmond Tutu Health Foundation
      • Johannesburg, Sud Africa, 2038
        • Wits Reproductive Health and HIV Institute (Wits RHI)
      • Pretoria, Sud Africa, 87
        • The Aurum Institute: Pretoria Clinical Research Centre
      • Soshanguvhe, Sud Africa, 0152
        • Setshaba Research Centre
      • Tembisa, Sud Africa, 1632
        • The Aurum Institute Tembisa CRC, Clinic 4
      • Vincent, Sud Africa, 5217
        • FPD-DTHF Ndevana Commuity Research Site
      • Bangkok, Tailandia, 10330
        • King Chulalongkorn Memorial Hospital
      • Bangkok, Tailandia, 10400
        • Ramathibodi Hospital, Mahidol University
      • Bangkok, Tailandia, 10330
        • Institute of HIV Research and Innovation
      • Bangkok, Tailandia, 10330
        • The HIV Netherlands Australia Thailand Research Collaboration (HIV-NAT), Thai Red Cross AIDS research Centre
      • Chiang Mai, Tailandia, 50200
        • Research Institute for Health Sciences, Chiang Mai University
      • Khon Kaen, Tailandia, 40002
        • Srinagarind Hospital, Khon Kaen University
      • Nonthaburi, Tailandia, 11000
        • Bamrasnaradura Infectious Disease Institute

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

16 anni e precedenti (Bambino, Adulto, Adulto più anziano)

Accetta volontari sani

Sì

Sessi ammissibili allo studio

Tutto

Descrizione

Key Inclusion Criteria:

Incidence Phase

  • CGM, TGW, TGM, and GNB who have condomless receptive anal sex with partners assigned male at birth and are at risk for HIV infection.

  • HIV-1 status unknown at screening and no prior HIV-1 testing within the last 3 months.

  • Sexually active with ≥ 1 partner assigned male at birth (condomless receptive anal sex) in the last 12 months and 1 of the following:

    • Condomless receptive anal sex with ≥ 2 partners in the last 12 weeks.
    • History of syphilis, rectal gonorrhea, or rectal chlamydia in the last 24 weeks.
    • Self-reported use of stimulants with sex in the last 12 weeks.

Randomized Phase

  • Negative local rapid fourth generation HIV-1/2 Ab/Ag, central fourth generation HIV-1/2 Ab/Ag, and HIV-1 RNA quantitative nucleic acid amplification testing (NAAT).
  • Estimated glomerular filtration rate (eGFR) ≥ 60 mL/min at screening according to the Cockcroft-Gault formula for creatinine clearance (CLcr).

Key Exclusion Criteria:

Incidence Phase

  • Prior use of HIV PrEP (including F/TDF or F/TAF) or HIV postexposure prophylaxis (PEP) in the past 12 weeks or any prior use of long-acting systemic PrEP (including cabotegravir or islatravir).
  • Prior recipient of an HIV vaccine or HIV broadly neutralizing antibody formulation.

Randomized Phase

  • Acute viral hepatitis A, B or C or evidence of chronic hepatitis B or C infection.
  • Severe hepatic impairment or a history of or current clinical decompensated liver cirrhosis.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Prevenzione
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Doppio

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Randomized Blinded Phase: LEN + Placebo-to-match (PTM) F/TDF

Participants will receive the following for up to approximately 52 weeks:

  • Subcutaneous (SC) lenacapavir (LEN) 927 mg every 26 weeks
  • Oral PTM Emtricitabine/Tenofovir Disoproxil Fumarate (F/TDF) once daily
  • Oral LEN 600 mg on Days 1 and 2

Participants will receive oral LEN if SC injections are not available.

Tablets administered orally without regard to food

Altri nomi:
  • GS-6207

Administered via SC injections

Altri nomi:
  • GS-6207; Yeztugo

Tablets administered orally

Sperimentale: Randomized Blinded Phase: Placebo LEN + F/TDF

Participants will receive the following for up to approximately 52 weeks:

  • SC LEN placebo every 26 weeks
  • Oral F/TDF 200/300 mg once daily
  • PTM Oral LEN on Days 1 and 2

Participants will receive oral LEN placebo if SC injections are not available.

Tablets administered orally

Altri nomi:
  • Truvada®

Administered via SC injections

Tablets administered orally

Sperimentale: LEN Open-Label Extension (OLE) Phase

Participants will be offered entry into LEN OLE Phase, following completion of primary analysis, if LEN demonstrates acceptable safety and efficacy in the Randomized Blinded Phase.

Participants randomized to LEN will continue to receive SC LEN 927 mg, every 26 weeks (± 7 days), and have study visits every 13 weeks (± 7 days).

Participants randomized to F/TDF will switch to SC LEN 927 mg on OLE Day 1, Week 26 and every 26 weeks thereafter. Participants will also receive oral LEN 600 mg on OLE Days 1 and 2.

All participants in LEN OLE Phase will complete the phase, once LEN becomes available or the sponsor decides to discontinue the study, whichever happens first.

After completing LEN OLE Phase or study discontinuation, participants will transition to local PrEP, including LEN or other options. If a participant exits early, they will complete an early study drug discontinuation (ESDD), be referred to local PrEP services if needed, and have a 30-day follow-up visit.

Tablets administered orally without regard to food

Altri nomi:
  • GS-6207

Administered via SC injections

Altri nomi:
  • GS-6207; Yeztugo
Sperimentale: Pharmacokinetic (PK) Tail Phase

Participants who prematurely discontinue study drug during the Randomized Blinded Phase and participants that were randomized to LEN who choose not to continue in the LEN OLE Phase will transition to the PK Tail Phase. Participants will receive oral F/TDF (or Emtricitabine/Tenofovir Alafenamide (F/TAF) for US participants only) once daily for 78 weeks to cover the PK tail and complete visits every 13 weeks (+/- 7 days).

Upon unblinding, participants who were randomized to F/TDF in the Randomized Blinded Phase who decline to participate in the LEN OLE Phase will complete the ESDD visit, transition to local HIV prevention services, and return for a 30-day follow-up visit.

Tablets administered orally

Altri nomi:
  • Truvada®

F/TAF tablets administered orally once daily

Altri nomi:
  • Scovy

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Incidence Phase: Recent Infection Testing Algorithm (RITA) Estimate of the Background Human Immunodeficiency-1 Virus Infection Incidence Rate (bHIV) Per 100 Person Years (PY)
Lasso di tempo: Incidence Phase Screening Visit (Day 1)

bHIV per 100 PY in the Incidence Phase was calculated using RITA. The RITA incorporated HIV-1 testing results and recency assay testing results to estimate the bHIV. Recency assay testing was performed for participants in the All Screened Set found to have HIV-1 infection at the Incidence Phase Screening Visit as defined below. Participants were considered to have recent HIV-1 infection if the normalized optical density (ODn) was below 1.5 threshold using the Sedia limiting antigen avidity enzyme immunoassay (LAg-EIA) and the HIV-1 RNA (viral load) was > 75 copies/mL of blood.

HIV-1 infection was defined as participants having at least one of the following central lab results at the Incidence Phase screening visit:

  • Positive HIV-1/2 differentiation Ab, OR
  • Positive HIV-1 ribonucleic acid (RNA) qualitative test, OR
  • HIV-1 RNA quantitative test ≥200 copies/mL.
Incidence Phase Screening Visit (Day 1)
Randomized Blinded Phase: HIV-1 Incidence Reported Per 100 PY for LEN Compared to Background HIV (bHIV, Participants in All Screened Set)
Lasso di tempo: Up to 149 weeks

HIV-1 incidence per 100 PY for LEN was calculated as the number of participants who acquired HIV-1 divided by the total of a) for participants not diagnosed with HIV-1, sum of all duration of follow-up time in years, while at risk of HIV-1 infection (where a year is 365.25 days) and b) for participants diagnosed with HIV-1, sum of all duration of follow-up time up to confirmed HIV-1 diagnoses. HIV-1 diagnosis was determined by an HIV adjudication committee who reviewed potential HIV-1 infection events in the randomized participants. The committee, in a blinded, consistent, and unbiased manner, determined whether HIV test results confirmed HIV-1 infection and determined the date of diagnosis for each case, defined as the date of the earliest study visit with evidence of HIV infection considering both prospective HIV testing and back-testing of archived samples. bHIV incidence per 100 PY in All Screened Set was estimated as described in outcome measure#1.

Up to 149 weeks

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Randomized Blinded Phase: HIV-1 Incidence Reported Per 100 PY for LEN Compared to F/TDF
Lasso di tempo: Up to 149 weeks

HIV-1 incidence per 100 PY was calculated as the number of participants who acquired HIV-1 divided by the total of a) for participants not diagnosed with HIV-1, sum of all duration of follow-up time in years, while at risk of HIV-1 infection (where a year is 365.25 days) and b) for participants diagnosed with HIV-1, sum of all duration of follow-up time up to confirmed HIV-1 diagnoses. HIV-1 diagnosis was determined by an HIV adjudication committee who reviewed potential HIV-1 infection events in the randomized participants. The committee, in a blinded, consistent, and unbiased manner, determined whether HIV test results confirmed HIV-1 infection and determined the date of diagnosis for each case, defined as the date of the earliest study visit with evidence of HIV infection considering both prospective HIV testing and back-testing of archived samples.

Up to 149 weeks
Randomized Blinded Phase: HIV-1 Incidence Among Participants Adherent to LEN
Lasso di tempo: Up to 149 weeks

A participant was defined as adherent to LEN if they have received all per-protocol administrations of LEN within 28 weeks since the previous administration. The incidence of HIV-1 infection per 100 PY calculation is defined in outcome measure #2.

Up to 149 weeks
Randomized Blinded Phase: Percentage of Participants Experiencing Treatment-Emergent Adverse Events (TEAEs)
Lasso di tempo: First dose date up to 184 weeks

An adverse event (AE) was any untoward medical occurrence in a clinical study participant administered a study drug that did not necessarily have a causal relationship with the treatment. TEAEs were defined as 1 or both of the following: Any AEs leading to premature discontinuation of study drug, or any AEs with an onset date on or after the study drug start date and no later than the last exposure date after permanent discontinuation of the study drug.

First dose date up to 184 weeks
Randomized Blinded Phase: Percentage of Participants Experiencing Grade 3 or Higher Laboratory Abnormalities
Lasso di tempo: First dose date up to 184 weeks

Treatment-emergent laboratory abnormalities were defined as values that increased at least 1 toxicity grade from baseline at any post-baseline visit, up to and including the last exposure date for participants who permanently discontinued study drug, or the last available date in the database snapshot for participants who were still on treatment at the time of an analysis. The division of acquired immunodeficiency syndrome toxicity grading scale, Version 2.1 was used to assign toxicity grades (0 to 4) to laboratory results for analysis. Grade 0 included all values that do not meet the criteria for an abnormality of at least Grade 1. Grade 1 mild, Grade 2 moderate, Grade 3 severe, and Grade 4 potentially life-threatening. Percentages were rounded off.

First dose date up to 184 weeks

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Investigatori

  • Direttore dello studio: Gilead Study Director, Gilead Sciences

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Pubblicazioni generali

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

28 giugno 2021

Completamento primario (Effettivo)

21 agosto 2024

Completamento dello studio (Stimato)

1 agosto 2028

Date di iscrizione allo studio

Primo inviato

28 maggio 2021

Primo inviato che soddisfa i criteri di controllo qualità

11 giugno 2021

Primo Inserito (Effettivo)

14 giugno 2021

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

6 ottobre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

11 settembre 2026

Ultimo verificato

1 settembre 2026

Maggiori informazioni

Termini relativi a questo studio

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

Sì

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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