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A Study to Evaluate VH4524184 Tablet Absorption, Effects of Food, and Interactions With Other Drugs in Healthy Adults

A Phase 1, Open-Label Study to Evaluate the Relative Bioavailability and the Effect of Food on VH4524184 Tablet Formulations, and to Evaluate the Potential for VH4524184 Drug-Drug-Interactions in Healthy Adult Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07066722
Enrollment
126
Registered
2025-07-15
Start date
2025-07-07
Completion date
2025-12-17
Last updated
2026-03-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV Infections

Keywords

Drug-drug interaction, First-time in human, HIV, Bioavailability, Healthy Adult Participants

Brief summary

The aim of the study is to gather information on how the drug behaves in healthy adults, how it is absorbed, and how it interacts when taken with other medicines.

Interventions

VH4524184 will be administered.

DRUGItraconazole

Itraconazole will be administered.

DRUGRifabutin

Rifabutin will be administered.

DRUGPhenytoin

Extended phenytoin sodium will be administered.

DRUGMetformin

Metformin will be administered.

DRUGDigoxin

Digoxin will be administered.

Sponsors

ViiV Healthcare
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

1\. Participants must be 18 to 60 years of age inclusive at the time of signing the Informed consent form (ICF). 2\. Male or female 1. Male Participants: No restrictions for male participants 2. A female participant (female sex assigned at birth) is eligible to participate if she is not pregnant, or breastfeeding and the following condition applies: She is a woman of nonchildbearing potential (WONCBP). 3\. Participants who are overtly healthy as determined by medical evaluation 4. AST, ALT, alkaline phosphatase and bilirubin ≤ 1.5 x Upper Limit of Normal (ULN) 6. Capable of giving signed informed consent.

Exclusion criteria

1. History or presence of clinical conditions affecting drug absorption, metabolism, or elimination., 2. Pre-existing clinically relevant, gastro-intestinal pathology 3. Abnormal glucose metabolism requiring insulin or medications. 4. Clinically significant Abnormal blood pressure. 5. History of Lymphoma, leukemia, or any malignancy within the past 5 years (3 years for resected basal or squamous epithelial carcinomas of skin). 6. Breast cancer within the past 10 years. 7. Current or chronic history of liver disease or known hepatic or biliary abnormalities. 8. History of syncope, clinically significant palpitations, cardiac arrhythmias or cardiac disease or a family long QT syndrome. 9. History of seizure(s) and / or other clinically significant neurological conditions. 10. Pre-existing psychiatric condition, including depression, anxiety, and/or insomnia/sleep disturbances and / or suicidal ideation. 11. History of drug hypersensitivity. 13\. Use of medications/supplements affecting cytochrome P450 enzymes within 7 to 14 days prior to dosing. 14\. Contraindications based on selected drug prescribing information. 15. Exposure to more than 4 new investigational products within 12 months 16. Current enrollment or past participation in another investigational study in which an investigational intervention was administered within the last 30 days. 17\. Estimated glomelular filtration rate (eGFR) \< 90 mL/min or serum creatinine \>1.1×ULN \[Inker, 2021\]. 18\. Hemoglobin \<12.5 g/dL for men and \<11 g/dL for women. 19. Presence of Hepatitis B surface antigen (HBsAg) \[and Hepatitis B core antibody (HBcAb)\] at screening 20. Positive Hepatitis C antibody test result at screening 21. Positive SARS-CoV-2 test, having signs and symptoms which in the opinion of the investigator are suggestive of COVID-19. 22.Positive pre- study drug/alcohol screen. 23. Poor metabolizers of CYP2C9 and / or CYP2C19 as assessed by genotype testing. HLA-B\*1502 positive as applicable to specified cohort. Other

Design outcomes

Primary

MeasureTime frame
Part 1: Maximum plasma concentration (Cmax) for VH4524184Up to Day 18
Part 1: Area under the concentration-time curve from 0 to tau (AUC0-t) for VH4524184Up to day 18
Part 1: Area under the concentration-time curve from 0 to infinity (AUC0-inf) for VH4524184Up to day 18
Part 2: Cmax for VH4524184At Day 1, Day 14, Day 19 and Day 22
Part 2: AUC0-t of VH4524184At Day 1, Day 14, Day 19 and Day 22
Part 2: AUC0-inf of VH4524184At Day 1, Day 14, Day 19 and Day 22
Part 2: Cmax for metforminAt Day 1 and Day 15
Part 2: AUC0-t for metforminAt Day 1 and Day 15
Part 2: Cmax for DigoxinAt Day 1 and Day 15
Part 2: AUC0-t for DigoxinAt Day 1 and Day 15

Secondary

MeasureTime frameDescription
Number of participants with adverse events (AEs) and severity of AEsFrom Day 1 up to Day 42An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study intervention, whether or not considered related to the study intervention. Severity of grades are defined as Grade 1= Mild, Grade 2= Moderate, Grade 3= Severe, Grade 4= Potentially Life- Threatening.
Number of participants with AEs leading to discontinuation of study interventionThroughout the study treatment period (from Day 1 up to Day 33)
Number of participants with Change in laboratory parametersFrom Day 1 up to Day 42
Number of participants with maximum toxicity grade increase from baseline in laboratory parametersFrom Day 1 up to Day 42Toxicity is graded using the DAIDS criteria Version 2.1 where grades were defined based on numeric criteria as follows Grade 1: mild; Grade 2: moderate; Grade 3: severe or medically significant; Grade 4: potentially life-threatening. A higher grade indicates greater severity.
Part 1: Time to maximum concentration (Tmax) of VH4524184At Day 1
Part 1: Apparent Terminal Half Life (T1/2) of VH4524184At Day 1
Part 1: Apparent oral clearance (CL/F) of VH4524184At Day 1
Part 2: Tmax of VH4524184 Following Single-Dose Administration with CYP3A4 Inhibitors and Inducers (Itraconazole, Rifabutin, Phenytoin)At Day 1, Day 14, Day 19 and Day 22
Part 2: T1/2 of VH4524184 Following Single-Dose Administration with CYP3A4 Inhibitors and Inducers (Itraconazole, Rifabutin, Phenytoin)At Day 1, Day 14, Day 19 and Day 22
Part 2: CL/F of VH4524184 Following Single-Dose Administration with CYP3A4 Inhibitors and Inducers (Itraconazole, Rifabutin, Phenytoin)At Day 1, Day 14, Day 19 and Day 22
Part 2: Cmax for VH5424184 Following Comedication with Transporter Substrates with metformin and digoxinAt Day 1 and Day 15
Part 2: AUC0-t for VH5424184 Following Comedication with Transporter Substrates metformin and digoxinAt Day 1 and Day 15
Part 2: Cmax for Itraconazole Following Comedication with VH4524184At Day 1 and Day 14
Part 2: AUC0-t for Itraconazole Following Comedication with VH4524184At Day 1 and Day 14
Part 2: Cmax for Rifabutin Following Comedication with VH4524184At Day 1 and Day 11
Part 2: AUC0-t for Rifabutin Following Comedication with VH4524184At Day 1 and Day 19
Part 2: Cmax for Phenytoin Following Comedication with VH4524184Day 1 and Day 22
Part 2: AUC0-t for Phenytoin Following Comedication with VH4524184Day 1 and Day 22

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 10, 2026