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HivPhase 1UNIVERSALRBANCT05489406

Relative Bioavailability Study to Investigate a Potential Interaction Between DTG DT and F/TAF TOS.

A Phase 1 study testing DTG DT (6 x 5 mg) and F/TAF TOS (3 x 60/7.5 mg) in people with Hiv, run by Radboud University Medical Center at 1 site in Netherlands.

Completed

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

Official record
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Trial summary

This relative bioavailability (RBA) study will be conducted to investigate whether there is a potential pharmacokinetic effect when paediatric DTG and F/TAF are taken together as dispersible formulations. This study will be performed in healthy volunteers instead of HIV-infected patients. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Hiv
What is being tested?
DTG DT (6 x 5 mg) and F/TAF TOS (3 x 60/7.5 mg)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
1 siteNetherlands
Study dates
6 Oct 2022to 30 Nov 2023
Phase
Phase 1
Are there results?
None posted in the registry

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 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Subject is at least 18 and not older than 55 years of age at the day of screening.
  • Subject weighs at least 40 kg.
  • Subject has a BMI of 18.5-30 kg/m2, extremes included.
  • Subject is able and willing to sign the Informed Consent Form prior to screening evaluations.
  • Subject is in good age-appropriate health condition as established by medical history, physical examination, electrocardiography, results of biochemistry, haematology and urinalysis testing within four weeks prior to day 1. Results of biochemistry, haematology and urinalysis testing should be within the laboratory's reference ranges. If laboratory results are not within the reference ranges, the subject is included based on the Investigator's judgment that the observed deviations are not clinically relevant. This should be clearly recorded.
  • Subject has a normal blood pressure and pulse rate, according to the Investigator's judgment.
  • Subject does not smoke more than 10 cigarettes, 2 cigars, or 2 pipes per day for at least 3 months prior to day 1.

Who cannot join

  • Positive HIV test.
  • Positive hepatitis B or C test.
  • Documented history of sensitivity/idiosyncrasy to medicinal products or excipients.
  • Relevant history or current condition that might interfere with drug absorption, distribution, metabolism, or excretion.
  • Inability to understand the nature and extent of the study and the procedures required.
  • Pregnant female (as confirmed by an hCG test performed less than 4 weeks before day 1) or breast-feeding female. Female subjects of childbearing potential without adequate contraception, e.g., hysterectomy, bilateral tubal ligation, (non-hormonal) intrauterine device, total abstinence, double barrier methods, or two years post-menopausal. They must agree to take precautions in order to prevent a pregnancy throughout the entire conduct of the study.
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  • Therapy with any drug (including herbal remedies, multivitamins, iron supplements and calcium supplements) for two weeks preceding day 1, except for acetaminophen.
  • Relevant history or presence of pulmonary disorders (especially COPD), cardiovascular disorders, neurological disorders (especially seizures and migraine), psychiatric disorders, gastro-intestinal disorders, renal disorders (renal failure determined as an estimated Glomerular Filtration Rate (eGFR) below 50 ml/min (MDRD-based)), hepatic disorders (Child-Pugh B or C), hormonal disorders (especially diabetes mellitus), coagulation disorders.
  • History of or current abuse of drugs, alcohol or solvents.
  • Participation in a drug study within 60 days prior to day 1. 11. Donation of blood within 60 days prior to day 1.
  • 12. Febrile illness within 3 days before day 1. 13. Co-worker of Radboud university medical center.

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • RTCCS Radboudumc

    Nijmegen

Other trials in Netherlands

About this study

Official title: Relative Bioavailability Study to Investigate a Potential Interaction Between Dolutegravir (DTG) and Tenofovir Alafenamide Fumarate/Emtricitabine (F/TAF) Administered as Paediatric Tablet Formulations

This relative bioavailability (RBA) study will be conducted to investigate whether there is a potential pharmacokinetic effect when paediatric DTG and F/TAF are taken together as dispersible formulations. This study will be performed in healthy volunteers instead of HIV-infected patients.

Read the detailed description

This relative bioavailability (RBA) study will be conducted to investigate whether there is a potential pharmacokinetic effect when paediatric DT DTG (30 mg dose) and F/TAF TOS (180/22.5 mg dose) are taken together. For this purpose, Gilead's F/TAF 60/7.5 mg TOS tablets and ViiV Healthcare's DTG 5 mg tablets will be used. Given the very low plasma concentration of TAF (very probably mainly under the detection limit) with a single dose of 7.5 mg in adults, 3 tablets of F/TAF 60/7.5 mg (180/22.5 mg) will be given, which is similar to the adult dose. It was considered to keep the ratio between DTG and F/TAF similar to the to be developed paediatric fixed dose combination tablet, which would have resulted in a DTG dose of 60mg DTG DT. But because DTG shows nonlinear kinetics above a dose of 50 mg FCT (3), it was decided to use DTG 30 mg DT tablets, which is bioequivalent to adult dose of 50 mg FCT. For all compounds, a dose similar to the adult dose will be given.

Conditions
Hiv
Being tested
DTG DT (6 x 5 mg), F/TAF TOS (3 x 60/7.5 mg)
Medical subject headings
Acquired Immunodeficiency Syndrome

What participants receive

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

  • DTG DT (6 x 5 mg)Drug

    Also called Tivicay 5 mg (ViiV)

    DTG 5mg dispersible tablet

  • F/TAF TOS (3 x 60/7.5 mg)Drug

    Also called F/TAF TOS 60/7.5 mg (Gilead)

    60/7.5 mg TOS emtricitabine/TAF

Study groups in NCT05489406
Study groupRoleWhat they receive
Single-dose DTG 30 mgActive comparatorHealthy volunteers receiving a single-dose DTG 30 mg as 6X5 mg dispersible tablets (DT) as a dispersed suspension in a fasted state. Samples will be taken pre-dose (t=0) and 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 24, and 48 hours post ingestion.
Receives: Drug: DTG DT (6 x 5 mg)
Single-dose F/TAF 180/22.5 mgActive comparatorHealthy volunteers receiving a single-dose F/TAF 180/22.5 mg as 3X60/7.5 mg TOS as a dispersed suspension in a fasted state. Samples will be taken pre-dose (t=0) and 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 24, and 48 hours post ingestion.
Receives: Drug: F/TAF TOS (3 x 60/7.5 mg)
Single-dose DTG 30 mg and F/TAF 180/22.5 mgExperimentalHealthy volunteers receiving a single-dose F/TAF 180/22.5 mg as 3X60/7.5 mg TOS + DTG 30 mg as 6X5 mg DT as a co-dispersed suspension in a fasted state. Samples will be taken pre-dose (t=0) and 0.17, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 24, and 48 hours post ingestion.
Receives: Drug: DTG DT (6 x 5 mg); Drug: F/TAF TOS (3 x 60/7.5 mg)

What is being measured

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

  1. The relative bioavailability of TAF and TFV

    The relative bioavailability of TAF and TFV after a single-dose F/TAF 180/22.5 mg as 3X60/7.5 mg TOS (reference TAF) compared to TAF and TFV after a single-dose F/TAF 180/22.5 mg as 3X60/7.5 mg TOS in combination with a single dose of DTG 30 mg as 6X5 mg DT tablets (test).

    Measured: 17 days

  2. The relative bioavailability of FTC

    The relative bioavailability of FTC after a single-dose F/TAF 180/22.5 mg as 3X60/7.5 mg TOS (reference FTC) compared to FTC after a single-dose F/TAF 180/22.5 mg as 3X60/7.5 mg TOS in combination with a single dose of DTG 30 mg as 6X5 mg DT tablets (test).

    Measured: 17 days

  3. The relative bioavailability of DTG

    The relative bioavailability of DTG after a single-dose DTG 30 mg as 6X 5 mg DT tablets (reference DTG) compared to DTG after a single-dose F/TAF 180/22.5 mg as 3X60/7.5 mg TOS in combination with a single dose of DTG 30 mg as 6X5 mg DT tablets (test).

    Measured: 17 days

  4. The relative bioavailability of the potential interaction and pharmacokinetics

    The relative bioavailability of the potential interaction, the pharmacokinetics (AUC0-∞, Cmax, Tmax, T1⁄2) of DTG, FTC, TAF and TFV will be obtained and the geometric mean ratios of the AUC0-tlast (TAF), AUC0-∞ (DTG, FTC and TFV only), Cmax , and Cmin (DTG, FTC and TFV only) of the test versus reference treatment

    Measured: 17 days

Secondary outcomes (1)
  1. Adverse events

    Adverse events will be described and compared (including clinically relevant laboratory abnormalities) of the treatments with F/TAF and DTG once daily.

    Measured: 17 days

Timeline

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

  1. First posted5 Aug 2022
  2. Study start6 Oct 2022
  3. Primary completion24 Mar 2023
  4. Study completion30 Nov 2023

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 1
Primary purpose
Other
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05489406
Sponsor's protocol ID
UNIVERSAL RBA
Acronym
UNIVERSALRBA
Status last verified
Dec 2023
First submitted
3 Aug 2022
Last updated
6 Dec 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing DTG DT (6 x 5 mg) and F/TAF TOS (3 x 60/7.5 mg) in people with Hiv, run by Radboud University Medical Center at 1 site in Netherlands.

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 7 inclusion and 11 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 6 Dec 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. 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. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

The relative bioavailability of TAF and TFV (time frame: 17 days). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 6 Dec 2023.

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