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HIV InfectionsPhase 2NCT06214052

VH4524184 Proof-of-Concept in Treatment-Naïve Adults Living With HIV-1

A Phase 2 study testing VH4524184 and Antiretroviral therapy in people with HIV Infections, run by ViiV Healthcare at 17 sites in 5 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The purpose of this study is to evaluate the safety, tolerability, ability of VH4524184 when given alone to reduce the amount of HIV (viral load) in people with HIV-1 infection who have never received antiretroviral therapy (treatment-naïve). Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
HIV Infections
What is being tested?
VH4524184 and Antiretroviral therapy
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
22 participants
Where
17 sitesin 5 countries
Study dates
7 Feb 2024to 12 Jun 2024
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Participant must be 18 to 65 years of age inclusive at the time of signing the informed consent.
  • Participants who are overtly healthy (other than HIV infection) as determined by the Investigator or medically qualified designee based on a medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring.
  • Positive HIV antibody test
  • Documented HIV infection and Screening plasma HIV-1 RNA ≥ 3,000 copies/mL. A single repeat of this test is allowed within a single Screening period to determine eligibility.
  • Screening CD4+ T-cell count ≥200 cells/mm3
  • Treatment-naïve: No antiretrovirals (ARVs, in combination or monotherapy) received after the diagnosis of HIV-1 infection.
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  • HIV Pre-exposure or post-exposure prophylaxis: No prior use of any INSTI (including cabotegravir) for HIV pre-exposure or post-exposure prophylaxis.
  • Body weight ≥50.0 kg (110 lbs.) for men and ≥45.0 kg (99 lbs) for women and BMI within the range 18.5-31.0 kg/m2 (inclusive - applies to males and females).
  • A participant of childbearing potential must have a negative serum hCG test at screening, and negative urine hCG test at Day 1, before the first dose of study intervention.
  • If a urine test cannot be confirmed as negative (e.g. ambiguous result), a serum pregnancy test is required. In such cases, the participant must be excluded from participation if the serum pregnancy result is positive.
  • The Investigator is responsible for review of medical history, menstrual history, and recent sexual activity to decrease risk for inclusion of a female with an early undetected pregnancy.
  • Capable of giving signed informed consent
  • Participant must be willing and able to start standard-of-care ART as selected with the investigator on Study Day 10.

Who cannot join

  • Participants with primary HIV infection. Any evidence of an active CDC Stage 3 disease, except cutaneous Kaposi's sarcoma not requiring systemic therapy during the study. Untreated syphilis infection [positive RPR at screen] without documentation of treatment. Ongoing malignancy other than cutaneous Kaposi's sarcoma, basal cell carcinoma, or resected, non-invasive cutaneous squamous cell carcinoma, or cervical, anal or penile intraepithelial neoplasia; or other localized malignancies
  • Any pre-existing physical or mental condition which, in the opinion of the Investigator, may interfere with the participant's ability to comply with the dosing schedule and/or protocol evaluations or which may compromise the safety of the participant.
  • Any history of significant underlying psychiatric disorder, or a clinical assessment of suicidality based on the responses on the eCSSRS.
  • Any history of major depressive disorder with or without suicidal features, or anxiety disorders, that required medical intervention (pharmacologic or not) such as hospitalization or other inpatient treatment and/or chronic (>6 months) outpatient treatment.
  • Current or chronic history of liver disease or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
  • Medical history of cardiac arrhythmias or cardiac disease or a family or personal history of long QT syndrome or sudden cardiac death. Treatment with immunomodulating agents (such as systemic corticosteroids, interleukins, interferons) or any agent with known anti-HIV activity (such as hydroxyurea or foscarnet) within 30 days of study drug administration.
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  • Past or intended use of over-the-counter or prescription medication including herbal medications within 7 days (or 14 days if the drug is a potential enzyme inducer) or 5 half-lives (whichever is longer) prior to dosing. Specific medications listed in Section 6.9.1 may be allowed.
  • Participants who require concomitant medications known to be associated with a prolonged QTc.
  • Participants receiving any protocol-prohibited medication(s) and who are unwilling or unable to switch to an alternate medication).
  • The participant has ever received an investigational HIV vaccine (immunotherapeutic or immunomodulatory).
  • Exposure to an experimental drug or experimental vaccine within either 30 days, 5 half-lives of the test agent, or twice the duration of the biological effect of the test agent, whichever is longer, prior to the first dose of study intervention.
  • Participation in the study would result in donation of blood in excess of 500 mL within 56 days.
  • Exposure to more than four new investigational drugs or vaccines within 12 months prior to the first dosing day.
  • Current enrollment or past participation within the last 30 days, 5 half-lives or twice the duration of the biological effect of the investigational product (whichever is longer) before signing of consent in any other clinical study involving an investigational study intervention or any other type of medical research.
  • Diagnostic Assessments
  • Presence of HBsAg or HBcAb at screening
  • Positive Hepatitis C antibody test result at Screening
  • Positive Hepatitis C RNA test result at Screening.
  • Creatinine clearance (eGFR) of < 60 mL/min/1.73 m2 using CKD-EPI equation (2021).

Trial locations and contacts

17 sites in 5 countries.

17 sites in 5 countries

Spain6 sites
  • GSK Investigational Site

    Barcelona, 08003

  • GSK Investigational Site

    Barcelona, 08026

  • GSK Investigational Site

    Elche Alicante, 03203

  • GSK Investigational Site

    Madrid, 28020

  • GSK Investigational Site

    Murcia, 30003

  • GSK Investigational Site

    Valencia, 46026

Other trials in Spain

United States5 sites
  • GSK Investigational Site

    Bakersfield, California, 93301

  • GSK Investigational Site

    DeLand, Florida, 32720

  • GSK Investigational Site

    Los Angeles, California, 90027

  • GSK Investigational Site

    Orlando, Florida, 32803

  • GSK Investigational Site

    West Hollywood, California, 90046

Other trials in United States

Argentina3 sites
  • GSK Investigational Site

    Buenos Aires, C1202

  • GSK Investigational Site

    Buenos Aires, C1425AGC

  • GSK Investigational Site

    Ciudad Autonoma de Bueno, C1405CKC

Other trials in Argentina

Canada2 sites
  • GSK Investigational Site

    Montreal, Quebec, H4A 3J1

  • GSK Investigational Site

    Québec, Quebec, G1V 4G2

Other trials in Canada

Italy1 site
  • GSK Investigational Site

    Milan, 20162

Other trials in Italy

About this study

Official title: A Phase 2a, Randomized, Double-Blind (Sponsor Unblinded), Placebo-Controlled, Study to Investigate the Antiviral Effect, Safety, Tolerability and Pharmacokinetics of VH4524184 in HIV-1 Infected Treatment Naïve Adults

The purpose of this study is to evaluate the safety, tolerability, ability of VH4524184 when given alone to reduce the amount of HIV (viral load) in people with HIV-1 infection who have never received antiretroviral therapy (treatment-naïve). Data from this study will be used to decide how VH4524184 can be best included in a full-treatment regimen for HIV-1 in the future.

Conditions
HIV Infections
Being tested
VH4524184, Matching Placebo, Antiretroviral therapy
Keywords
Human immunodeficiency virus, Proof of concept, Antiviral Agents, Virus Diseases
Medical subject headings
HIV Infections, Acquired Immunodeficiency Syndrome, Virus Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • VH4524184Drug

    VH4524184 was administered as tablets orally at Day 1.

  • Matching PlaceboDrug

    VH4524184 Matching Placebo was administered as tablets orally at Day 1.

  • Antiretroviral therapyDrug

    Antiretroviral therapy was administered as available and as per investigator's recommendation.

Study groups in NCT06214052
Study groupRoleWhat they receive
VH4524184 Dose 1ExperimentalParticipants received VH4524184, administered as Dose 1 (low dose) on Day 1, Day 4, and Day 7. On Day 10, participants began open-label standard-of-care (SOC) antiretroviral therapy (ART), which was selected by the investigator and locally sourced. Participants were monitored weekly until Day 38.
Receives: Drug: VH4524184; Drug: Antiretroviral therapy
VH4524184 Dose 2ExperimentalParticipants received VH4524184, administered as Dose 2 (medium dose) on Day 1, Day 4, and Day 7. On Day 10, participants began open-label SOC ART, which was selected by the investigator and locally sourced. Participants were monitored weekly until Day 38.
Receives: Drug: VH4524184; Drug: Antiretroviral therapy
VH4524184 Dose 3ExperimentalParticipants received VH4524184, administered as Dose 3 (high dose) on Day 1, Day 4, and Day 7. On Day 10, participants began open-label SOC ART, which was selected by the investigator and locally sourced. Participants were monitored weekly until Day 38.
Receives: Drug: VH4524184; Drug: Antiretroviral therapy
PlaceboPlacebo comparatorParticipants received matching Placebo to the study intervention on Day 1, Day 4, and Day 7. On Day 10, participants began open-label SOC ART, which was selected by the investigator and locally sourced. Participants were monitored weekly until Day 38.
Receives: Drug: Matching Placebo; Drug: Antiretroviral therapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Monotherapy: Maximum Change From Baseline in Plasma Human Immunodeficiency Virus-1 (HIV-1) Ribonucleic Acid (RNA)

    Plasma samples were collected for the quantitative analysis of plasma HIV-1 RNA. The maximum change from baseline was calculated by determining the largest change from baseline value across all assessment timepoints during the monotherapy period. This is identified by subtracting the lowest post-dose visit value up to Day 10 (inclusive) from the baseline value. The baseline was defined as the most recent pre-dose assessment with a valid, non-missing value, including measurements from any unscheduled visits.

    Measured: At Day 10

Secondary outcomes (15)
  1. Monotherapy and Follow-up: Number of Participants With Any Adverse Event (AE)

    An 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. An AE can be any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention. Any AEs = occurrence of the symptom regardless of intensity grade.

    Measured: Day 1 to Day 38

  2. Monotherapy and Follow-up: Number of Participants With AEs by Severity

    The severity was assessed using The Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (DAIDS AE Grading Table) Version 2.1 where Grade 1 = mild, Grade 2 = moderate, Grade 3 = severe, Grade 4 = potentially life-threatening and Grade 5 = Death.

    Measured: Day 1 to Day 38

  3. Monotherapy: Number of Participants With AEs Leading to Study Treatment Discontinuation

    Measured: Day 1 to Day 7

  4. Monotherapy and Follow-up: Change From Baseline for Liver Panel Laboratory Parameters: Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST), Alkaline Phosphatase (ALP)

    Blood samples were collected at the indicated timepoints.

    Measured: At Baseline (Day 1), Day 2, Day 4, Day 7, Day 10, Day 17, Day 24, Day 31 and Day 38

  5. Monotherapy and Follow-up: Change From Baseline for Liver Panel Laboratory Parameter: Bilirubin

    Blood samples were collected at the indicated timepoints.

    Measured: At Baseline (Day 1), Day 2, Day 4, Day 7, Day 10, Day 17, Day 24, Day 31 and Day 38

  6. Monotherapy and Follow-up: Change From Baseline for Liver Panel Laboratory Parameter: Protein

    Blood samples were collected at the indicated timepoints.

    Measured: At Baseline (Day 1), Day 2, Day 4, Day 7, Day 10, Day 17, Day 24, Day 31 and Day 38

  7. Monotherapy and Follow-up: Number of Participants With Maximum Toxicity Grade Increase Relative to Baseline in Liver Panel Laboratory Parameters: ALT, AST, ALP, Bilirubin

    Liver panel parameters assessed were: ALT, AST, ALP, bilirubin. The parameters were graded according to DAIDS grading table Version 2.1 where grades were defined based on numeric criteria as follows Grade 0: participants with missing baseline values; Grade 1: Mild; Grade 2: moderate; Grade 3: severe or medically significant; Grade 4: life-threatening consequences. An increase is defined as an increase in grade relative to baseline grade.

    Measured: From Baseline (Day 1) and up to Day 38

  8. Monotherapy and Follow-up: Number of Participants With Maximum Toxicity Grade Increase Relative to Baseline in Liver Panel Laboratory Parameters: Protein

    Participants are categorized based on changes in their liver panel laboratory parameters (protein) to 'Low,' 'Normal,' or 'High,' unless there is no change in their initial category. Participants whose lab values remain unchanged (e.g., 'High' to 'High') or whose values return to normal are recorded in the 'To Normal or No Change' category. Participants may be counted in both the 'To Low' and 'To High' categories if their values fluctuate between these states. As a result, the percentages may exceed 100% due to dual categorization. Participants with a missing baseline value are assumed to have a normal baseline value.

    Measured: From Baseline (Day 1) and up to Day 38

  9. Monotherapy: Maximum Observed Plasma Drug Concentration (Cmax) of VH4524184

    Blood samples were collected at indicated time points for Pharmacokinetic (PK) analysis of VH4524184.

    Measured: At Day 1 and Day 7

  10. Monotherapy: Time to Maximum Observed Plasma Drug Concentration (Tmax) of VH4524184

    Blood samples were collected at indicated time points for PK analysis of VH4524184.

    Measured: At Day 1 and Day 7

  11. Monotherapy: Plasma Concentration of VH4524184 at Day 10

    Blood samples was collected at indicated time point for PK analysis of VH4524184.

    Measured: At Day 10

  12. Monotherapy: Correlation of VH4524184 Cmax With Maximum Plasma HIV-1 RNA Log 10 Change From Baseline Through Day 10

    Plasma samples were collected for quantitative analysis of HIV-1 RNA. Baseline value was the latest pre-dose assessment with a non-missing value. Change from baseline is defined as post-dose visit value minus baseline value. Statistical analysis for relationship between PK parameter (Cmax) and PD measure (change from baseline in logarithm to base 10 (log10) values for maximum plasma HIV-1 RNA) were explored using an Emax non-linear mixed-effects model. The model parameters estimated were maximum response (Emax) which is defined as the maximum change (at infinite exposure) and EC50 which defines the PK parameter value that attains 50 percent (%) of the maximal effect

    Measured: From Day 1 to Day 10

  13. Monotherapy: Number of Participants With Treatment-emergent Genotypic Resistance

    Plasma samples were collected to assess treatment emergent Genotypic Resistance.

    Measured: At Baseline (Day 1) and Day 10

  14. Monotherapy: Number of Participants With Treatment-emergent Phenotypic Resistance

    Plasma samples were collected to assess treatment emergent Phenotypic Resistance.

    Measured: At Baseline (Day 1) and Day 10

  15. Monotherapy: Change From Baseline in Cluster of Differentiation 4 (CD4+) T-cell Counts at Day 10

    Blood samples were collected for assessment of T-cells subsets (CD4+ T-cells count) by flow cytometry at Day 10 compared to Baseline.

    Measured: At Day 10 compared to Baseline (Day 1)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Jan 2024
  2. Study start7 Feb 2024
  3. Primary completion12 Jun 2024
  4. Study completion12 Jun 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06214052
Sponsor's protocol ID
218806
Other IDs
2023-507173-18-00, 2023
Status last verified
Jun 2025
First submitted
9 Jan 2024
Last updated
29 Jun 2025
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Study sponsor will assess requests from qualified researchers for anonymized individual patient-level data and related study documents. Data sharing is subject to certain criteria, conditions, and exceptions. For further information, refer to https://www.viiv-studyregister.com/documents/About\_ViiV\_Patient\_Level\_Data\_Sharing\_Final\_25Sep2023.pdf

Publications

  • Rogg L, Nunez SA, Mingrone MV, Domingo P, Rolle CP, Guerri-Fernandez R, Estrada V, Lopez M, Hanan N, Ghita GL, Jeffrey JL, Underwood M, Castillo-Mancilla JR, Halliday F, Ezeadi E, Gartland M. Proof-of-Concept Phase 2a Trial of VH4524184 (VH-184), an Emerging Third-Generation Integrase Strand Transfer Inhibitor With an Enhanced Resistance Profile. Clin Infect Dis. 2026 Jun 12:ciag357. doi: 10.1093/cid/ciag357. Online ahead of print.

    PubMed 42283218

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing VH4524184 and Antiretroviral therapy in people with HIV Infections, run by ViiV Healthcare at 17 sites in 5 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 13 inclusion and 19 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 17 sites in Spain, United States, Argentina, Canada, Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 29 Jun 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Monotherapy: Maximum Change From Baseline in Plasma Human Immunodeficiency Virus-1 (HIV-1) Ribonucleic Acid (RNA) (time frame: At Day 10). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06214052, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Jun 2025.

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