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Study to Compare GS-1179 Versus Valacyclovir in HSV-2 Seropositive Participants With Recurrent Genital Herpes

28. oktober 2026 oppdatert av: Gilead Sciences

A Phase 2b, Randomized, Double-Blind, Active-Control, Parallel-Group Study to Evaluate the Safety and Efficacy of GS-1179 Versus Valacyclovir in HSV-2 Seropositive Participants With Recurrent Genital Herpes

The goal of this clinical study is to compare the study drug GS-1179, versus valacyclovir (VACV) in herpes simplex virus type 2 (HSV-2) seropositive participants with recurrent genital herpes.

The primary objective of this study are to evaluate the safety and tolerability of GS-1179 versus VACV and to evaluate the antiviral effect of GS-1179 versus VACV.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

300

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Key Inclusion Criteria:

  • Individuals assigned male or female at birth, 18 years of age or older at screening, able to understand and give written informed consent and comply with treatment and follow up. Individuals assigned male or female at birth who are of childbearing potential and engage in heterosexual intercourse must be nonpregnant, nonlactating, and agree to use protocol-specified method(s) of contraception.
  • Individual is HSV-2 seropositive (or HSV-1 seropositive AND HSV-2 seropositive)
  • Individual has a history of recurrent genital herpes for at least 1 year, with 4 to 9 clinical occurrences in the last year or, if currently on suppressive therapy, 4 to 9 occurrences a year prior to initiating suppressive therapy.
  • Other than HSV infection, individual is in good health (as determined by the investigator). Medical history and physical examination should be without clinically significant abnormalities.

Key Exclusion Criteria:

  • Individual has an acute episode of genital herpes during screening or on Day 1 prior to dosing.
  • Individual has any other clinically significant medical, behavioral, mental condition, substance use disorder, or pharmacologic or surgical treatment that, in the opinion of the investigator or the sponsor, may interfere with efficacy or safety assessments, or the absorption, distribution, and/or elimination of the study drug, or make the individual unsuitable for study participation.
  • Individual has a history of refractory or resistant HSV infection to any HSV-specific nucleoside analog including valacyclovir, acyclovir, famciclovir, penciclovir, ganciclovir, or valganciclovir.
  • Individual has had treatment with any investigational or approved helicase-primase inhibitor (HPI) (including ABI-5366, ABI-1179, pritelivir, adibelivir [IM-250], amenamavir) or received an investigational HSV vaccine. However, individuals may be eligible if they participated in an investigational HPI study or an investigational HSV vaccine study but have sponsor documentation that they did not receive active product (eg, placebo recipients).

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

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Dobbelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: GS-1179 High Dose + VACV Placebo to Match (PTM)

Participants will be randomized to receive a high-dose of GS-1179 once weekly up to 85 days and VACV PTM once daily up to 92 days.

Administered orally

Administered orally

Eksperimentell: GS-1179 Low Dose + VACV Placebo to Match (PTM)

Participants will be randomized to receive a low-dose of GS-1179 once weekly up to 85 days and VACV PTM once daily up to 92 days.

Administered orally

Administered orally

Aktiv komparator: VACV + GS-1179 PTM

Participants will be randomized to receive VACV once daily up to 92 days and GS-1179 PTM once weekly up to 85 days.

Administered orally

Administered orally

Hva måler studien?

Primære resultatmål

Resultatmål
Tidsramme
Percentage of Participants Experiencing Adverse Events (AEs)
Tidsramme: Enrollment up to 92 days
Enrollment up to 92 days
Percentage of Participants Experiencing Premature Study-Dug Discontinuation due to AEs
Tidsramme: Enrollment up to 92 days
Enrollment up to 92 days
Percentage of Participants Experiencing Treatment-Emergent Laboratory Abnormalities
Tidsramme: First dose date up to 92 days
First dose date up to 92 days
Herpes Simplex Virus Type 2 (HSV-2) Shedding Rate During the Swabbing Period
Tidsramme: Day 8 to Day 38
Day 8 to Day 38

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Proportion of Participants Free of Genital Herpes Recurrences at Day 92
Tidsramme: Day 92
Day 92
Proportion of Participants Free of Genital Herpes Recurrences at Day 120
Tidsramme: Day 120
Day 120
Genital Herpes Lesion Rate During the Treatment Period
Tidsramme: Up to 92 days
Up to 92 days
Genital Herpes Lesion Duration During the Treatment Period
Tidsramme: Up to 92 days
Up to 92 days
Virologically Confirmed Genital Herpes Lesion Rate During the Treatment Period
Tidsramme: Up to 92 days
Up to 92 days
Virologically Confirmed Genital Herpes Lesion Duration During the Treatment Period
Tidsramme: Up to 92 days
Up to 92 days
Time to Suppression of HSV-2 Shedding
Tidsramme: Up to 92 days
Up to 92 days
Number of HSV-2 Shedding Episodes During the Swabbing Period
Tidsramme: Day 8 to Day 38
Day 8 to Day 38
Duration of HSV-2 Shedding Episodes During the Swabbing Period
Tidsramme: Day 8 to Day 38
Day 8 to Day 38
Proportion of Participants With Subclinical HSV-2 Shedding During the Swabbing Period
Tidsramme: Day 8 to Day 38

Subclinical HSV-2 shedding is defined as swabs testing positive for HSV-2 DNA during the Swabbing Period that are not accompanied by lesions.

Day 8 to Day 38
HSV-2 DNA (Copies/mL) for Swab Samples that are Positive for HSV-2 DNA During the Swabbing Period
Tidsramme: Day 8 to Day 38
Day 8 to Day 38
HSV-2 DNA (Copies/mL) for Positive Swab Samples in the Absence of Lesions (Subclinical Shedding) During the Swabbing Period
Tidsramme: Day 8 to Day 38
Day 8 to Day 38
Proportion of Swab Samples With HSV-2 DNA > 4 log10 Copies/mL for Positive Swab Samples During the Swabbing Period
Tidsramme: Day 8 to Day 38
Day 8 to Day 38
Proportion of Swab Samples With HSV-2 DNA > 4 log10 Copies/mL for Positive Swab Samples in the Absence of Lesions (Subclinical Shedding) During the Swabbing Period
Tidsramme: Day 8 to Day 38
Day 8 to Day 38
Plasma Pharmacokinetic (PK) Parameters: Cmax of GS-1179
Tidsramme: Day 1 up to 92 days

Cmax is defined as the maximum observed concentration of drug at steady state.

Day 1 up to 92 days
Plasma PK Parameters: AUCtau of GS-1179
Tidsramme: Day 1 up to 92 days

AUCtau is defined as the area under the concentration versus time curve over the dosing interval at steady state.

Day 1 up to 92 days
Plasma PK Parameters: Ctrough of GS-1179
Tidsramme: Day 1 up to 92 days

Ctrough is defined as the observed drug concentration at the end of the dosing interval at steady state.

Day 1 up to 92 days

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Etterforskere

  • Studieleder: Gilead Study Director, Gilead Sciences

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. november 2026

Primær fullføring (Antatt)

1. november 2027

Studiet fullført (Antatt)

1. november 2027

Datoer for studieregistrering

Først innsendt

28. oktober 2026

Først innsendt som oppfylte QC-kriteriene

28. oktober 2026

Først lagt ut (Faktiske)

3. november 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

3. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

28. oktober 2026

Sist bekreftet

1. oktober 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • GS-US-578-8029

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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