Clinical trial NCT06698575: A Study to Assess the Safety, Pharmacokinetics, and Tolerability of ABI-1179 in Healthy Subjects and in Subjects Seropositive for HSV-2 With Recurrent Genital Herpes
Official title: A Phase 1a/1b, Blinded, Placebo-Controlled Study of the Safety, Tolerability and Pharmacokinetics of Single- and Multiple Ascending Doses of ABI-1179 in Healthy Subjects and in Subjects Who Are Seropositive for Herpes Simplex Virus Type 2 With Recurrent Genital Herpes
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: PHASE1
Conditions: Recurrent Genital Herpes Simplex Type 2
Keywords: ABI-1179, PK, Healthy Participants, HSV-2, Recurrent Genital Herpes
Lead sponsor: Assembly Biosciences
Sponsor class: INDUSTRY
First posted: 2024-11-21
Enrollment: 146
Sex: ALL
Minimum age (years): 18
Maximum age (years): 60
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: This study is designed to assess safety, tolerability, and pharmacokinetics (PK) of single ascending dose (SAD) of ABI-1179 in Part A in healthy participants and multiple-ascending doses (MAD) of ABI-1179 in Part B in participants seropositive for Herpes Simplex Virus Type 2 (HSV-2) with recurrent genital herpes. Effect of food will also be evaluated in Part A.


Eligibility criteria: Part A: Inclusion Criteria:

* Subject has a body mass index (BMI) between ≥18.0 and \<32.0 kg/m2
* In good health (as determined by the Investigator) based on medical history, physical examination, ECG, and clinical laboratory results.
* Female subjects must be non-pregnant and have a negative serum pregnancy test at Screening and a negative urine pregnancy test at Day-1 or Day 1 (predose).
* Agreement to comply with protocol-specified contraceptive requirements.

Part B: Inclusion Criteria:

* Subject has a body mass index (BMI) between ≥18.0 and \<32.0 kg/m2
* Other than HSV infection, is in good health (as determined by the investigator) based on medical history, physical examination, ECG, and clinical laboratory results.
* Female subjects must be non-pregnant and have a negative serum pregnancy test at Screening and a negative urine pregnancy test at Day 1 (predose).
* Agreement to comply with protocol-specified contraceptive requirements

Part A and B: Exclusion Criteria:

* Current infection of human immunodeficiency virus (HIV), hepatitis B virus, (HBV), hepatitis C virus (HCV), acute hepatitis A virus (HAV), or acute hepatitis E virus (HEV).
* History of any illness that, in the opinion of the Investigator, might confound the results of the study, pose an additional risk in administering study drug to the subject, or condition known to interfere with the absorption /distribution/ elimination of drugs.
* History of any significant drug-related allergic reactions such as anaphylaxis, Stevens-Johnson Syndrome, urticaria, or multiple drug allergies.
* History of persistent alcohol abuse or illicit drug abuse within 3 years prior to screening.
* Has participated in a clinical study involving administration of either an investigational or a marketed drug within 30 days or 5 half-lives before screening, whatever is longer.

Primary outcomes:
measure: Area Under the Plasma Concentration Time Curve, (AUC) of ABI-1179
timeFrame: SAD Cohorts: before and at pre-specified timepoints up to 144 hours after dosing. MAD Cohorts: before and at pre-specified time points up to 8 hours after dosing.
measure: Maximum Observed Plasma Concentration (Cmax) of ABI-1179
timeFrame: SAD Cohorts: before and at pre-specified timepoints up to 144 hours after dosing. MAD Cohorts: before and at pre-specified time points up to 8 hours after dosing.
measure: Time to Cmax (Tmax) of ABI-1179
timeFrame: SAD Cohorts: before and at pre-specified timepoints up to 144 hours after dosing. MAD Cohorts: before and at pre-specified time points up to 8 hours after dosing.
measure: Apparent Terminal Elimination Half Life ( t 1/2) ABI-1179
timeFrame: SAD Cohorts: before and at pre-specified timepoints up to 144 hours after dosing. MAD Cohorts: before and at pre-specified time points up to 8 hours after dosing.
measure: Apparent Systemic Clearance (CL/F) of ABI-1179
timeFrame: SAD Cohorts: before and at pre-specified timepoints up to 144 hours after dosing. MAD Cohorts: before and at pre-specified time points up to 8 hours after dosing.
measure: Apparent Volume of Distribution (Vz/F) of ABI-1179
timeFrame: SAD Cohorts: before and at pre-specified timepoints up to 144 hours after dosing. MAD Cohorts: before and at pre-specified time points up to 8 hours after dosing.
measure: Dose normalized AUCs and Cmax of ABI-1179
timeFrame: SAD Cohorts: before and at pre-specified timepoints up to 144 hours after dosing. MAD Cohorts: before and at pre-specified time points up to 8 hours after dosing.
measure: Proportion of subjects with adverse events (AEs), premature treatment discontinuation due to AE's and abnormal laboratory results.
timeFrame: Up to 56 days after last dose.
Secondary outcomes:
measure: SAD Cohorts: Comparison of Plasma AUC between fasted and fed treatments
timeFrame: MAD Cohorts: At pre-specified time points from Days 8 to 36.
measure: SAD Cohorts: Comparison of plasma Cmax between fasted and fed treatments
timeFrame: SAD Cohorts: before and at pre-specified timepoints up to 144 hours after dosing.
measure: MAD Cohort: If applicable comparison of plasma AUC and Cmax with and without loading doses
timeFrame: MAD Cohorts At pre-specified timepoints from Days 8 to 36
measure: MAD Cohorts: Difference in viral shedding rate (number of anogenital swabs positive for HSV-2 DNA/total number of swabs) across treatments.
timeFrame: MAD Cohorts: At pre-specified time points from Days 8 to 36.
measure: MAD Cohorts: in mean and median HSV-2 DNA copies/ml for swab samples positive for HSV-2 DNA across treatments
timeFrame: MAD Cohorts: At pre-specified time points from Days 8 to 36.
measure: MAD Cohorts: Difference in the proportion of swab samples with HSV-2 DNA>4log10 copies/mL across treatments (number of swabbing samples with HSV-2 DNA >4 log10 copies/mL / total number of swabs obtained).
timeFrame: MAD Cohorts: At pre-specified time points from Days 8 to 36.
measure: MAD Cohorts: Difference in number of shedding episodes during the swabbing period across treatments.
timeFrame: MAD Cohorts: At pre-specified time points from Days 8 to 36.
measure: MAD Cohorts: Difference in duration of shedding episodes during the swabbing period across treatments.
timeFrame: MAD Cohorts: At pre-specified time points from Days 8 to 36.
measure: MAD Cohorts: Difference in the subclinical shedding rate (number of swabs positive for HSV-2 DNA in the absence of lesions/total number of swabs in the absence of lesions) across treatments.
timeFrame: MAD Cohorts: At pre-specified time points from Days 8 to 36.
measure: MAD Cohorts: Difference in the lesion rate during the swabbing period across treatments.
timeFrame: MAD Cohorts: At pre-specified time points from Days 8 to 36.
measure: MAD Cohorts: Difference in lesion duration during the swabbing period across treatments
timeFrame: MAD Cohorts: At pre-specified time points from Days 8 to 36.
measure: MAD Cohorts: Difference in the recurrence rate (number of reappearances of lesions during the swabbing period/total days assessed) across treatments.
timeFrame: MAD Cohorts: At pre-specified time points from Days 8 to 36.
Other outcomes:
Locations:
city: Melbourne
country: Australia
facility: Momentum Sunshine
state: Au
city: Darlinghurst
country: Australia
facility: East Sydney Doctors
city: Parkville
country: Australia
facility: Royal Melbourne Hospital
city: Surry Hills
country: Australia
facility: Taylor Square Private Clinic
city: Sydney
country: Australia
facility: Momentum Clinical Research
city: Hamilton
country: New Zealand
facility: Pacific Clinical Research Network
state: New
city: Auckland
country: New Zealand
facility: New Zealand Clinical Research
city: Christchurch
country: New Zealand
facility: New Zealand Clinical Research
city: Nelson
country: New Zealand
facility: Pacific Clinical Research Network
city: Palmerston North
country: New Zealand
facility: Momentum Palmerston North
city: Rotorua
country: New Zealand
facility: Pacific Clinical Research Network
city: Upper Hutt
country: New Zealand
facility: Pacific Clinical Research Network
city: Waikanae
country: New Zealand
facility: Momentum Kapiti
Study officials:
References: