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Chronic Hepatitis BPhase 1NCT04142762

A Study to Assess CYP3A4 Modulator, Oral Contraceptive, and pH Modifier Drug Interactions for ABI-H2158 in Healthy Adults

A Phase 1 study testing ABI-H2158, Itraconazole and Rifampin in people with Chronic Hepatitis B, run by Assembly Biosciences at 1 site in United States.

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 study is designed to assess 1) the effect of multiple doses of itraconazole (CYP3A4 inhibitor), rifampin (CYP3A4 inducer), and esomeprazole (pH modifier) on the pharmacokinetics of a single oral dose of ABI-H2158, and 2) the effect of steady-state oral ABI-H2158 on the pharmacokinetics of midazolam (sedative) and… Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Chronic Hepatitis B
What is being tested?
ABI-H2158, Itraconazole and Rifampin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
1 siteUnited States
Study dates
18 Oct 2019to 29 Jan 2020
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 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • No clinically significant abnormal findings on physical exam, medical history, or clinical laboratory results at screening.
  • Cohort 5: naive to the use of oral contraceptives.

Who cannot join

  • 1. Positive test results for human immunodeficiency virus (HIV) or hepatitis B or C.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Celerion

    Tempe, Arizona, 85283

Other trials in United States

About this study

Official title: A Phase 1, Open-Label, Fixed-Sequence Study to Evaluate CYP3A4-Mediated, Oral Contraceptive, and pH Modifier Drug Interactions for ABI-H2158 in Healthy Adult Subjects

This study is designed to assess 1) the effect of multiple doses of itraconazole (CYP3A4 inhibitor), rifampin (CYP3A4 inducer), and esomeprazole (pH modifier) on the pharmacokinetics of a single oral dose of ABI-H2158, and 2) the effect of steady-state oral ABI-H2158 on the pharmacokinetics of midazolam (sedative) and levonorgestrel/ethinyl estradiol (active oral contraceptive) in healthy adult participants.

Being tested
ABI-H2158, Itraconazole, Rifampin, Midazolam, Ethinyl Estradiol / Levonorgestrel
Medical subject headings
Hepatitis B, Chronic

What participants receive

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

  • ABI-H2158Drug

    ABI-H2158 tablets

  • ItraconazoleDrug

    Itraconazole capsules

  • RifampinDrug

    Rifampin capsules

  • MidazolamDrug

    Midazolam syrup

  • Ethinyl Estradiol / LevonorgestrelDrug

    Ethinyl Estradiol / Levonorgestrel tablets

  • EsomeprazoleDrug

    Esomeprazole capsules

  • Placebo matching oral contraceptiveDrug

    Placebo matching Ethinyl Estradiol / Levonorgestrel tablets

Study groups in NCT04142762
Study groupRoleWhat they receive
Cohort 1: ABI-H2158 + ItraconazoleExperimentalOral ABI-H2158 on Days 1 and 9; oral itraconazole once-daily (QD) on Days 6 through 13
Receives: Drug: ABI-H2158; Drug: Itraconazole
Cohort 2: ABI-H2158 + RifampinExperimentalOral ABI-H2158 on Days 1 and 12; oral rifampin QD on Days 6 through 16
Receives: Drug: ABI-H2158; Drug: Rifampin
Cohort 3: ABI-H2158 + EsomeprazoleExperimentalOral ABI-H2158 on Days 1 and 11; oral esomeprazole QD on Days 6 through 11
Receives: Drug: ABI-H2158; Drug: Esomeprazole
Cohort 4: ABI-H2158 + MidazolamExperimentalOral midazolam on Days 1 and 11; oral ABI-H2158 QD on Days 2 through 11
Receives: Drug: ABI-H2158; Drug: Midazolam
Cohort 5: ABI-H2158 + Oral ContraceptiveExperimentalCycle 1: active oral contraceptive (ethinyl estradiol/levonorgestrel) QD on Days 1 through 21 and oral placebo QD on Days 22 through 28; Cycle 2: active oral contraceptive QD on Days 1 through 21, oral placebo QD on Days 22 through 26, and oral ABI-H2158 QD on Days 11 through 24
Receives: Drug: ABI-H2158; Drug: Ethinyl Estradiol / Levonorgestrel; Drug: Placebo matching oral contraceptive

What is being measured

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

  1. Area under the plasma concentration time curve (AUC) of ABI-H2158

    Measured: before dosing and at pre-specified time points up to Day 17

  2. Maximum observed plasma concentration (Cmax) of ABI-H2158

    Measured: before dosing and at pre-specified time points up to Day 17

  3. AUC of Midazolam

    Measured: before dosing and at pre-specified time points up to Day 12

  4. Cmax of Midazolam

    Measured: before dosing and at pre-specified time points up to Day 17

  5. AUC of ethinyl estradiol and levonorgestrel

    Measured: before dosing and at pre-specified time points up to 5 days after dosing on Day 21 of Cycle 1 and Cycle 2. Cycle 1 is 28 days and Cycle 2 is 26 days

  6. Cmax of ethinyl estradiol and levonorgestrel

    Measured: before dosing and at pre-specified time points up to 5 days after dosing on Day 21 of Cycle 1 and Cycle 2. Cycle 1 is 28 days and Cycle 2 is 26 days

Timeline

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

  1. First posted29 Oct 2019
  2. Study start18 Oct 2019
  3. Primary completion12 Jan 2020
  4. Study completion29 Jan 2020

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
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04142762
Sponsor's protocol ID
ABI-H2158-103
Status last verified
Mar 2020
First submitted
16 Oct 2019
Last updated
4 Mar 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ABI-H2158, Itraconazole and Rifampin in people with Chronic Hepatitis B, run by Assembly Biosciences at 1 site in United States.

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 2 inclusion and 1 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 4 Mar 2020. 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 United States. 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?

Area under the plasma concentration time curve (AUC) of ABI-H2158 (time frame: before dosing and at pre-specified time points up to Day 17). The study lists 6 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 4 Mar 2020.

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