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Eosinophilic EsophagitisPhase 1NCT07093008

Comparing the Availability of AQ280 in the Body After Single Oral Doses of a Capsule Formulation Versus a Tablet for Oral Suspension Formulation

A Phase 1 study testing AQ280 Capsule and AQ280 Tablet for Oral Suspension in people with Eosinophilic Esophagitis, run by AQILION AB 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 is a Phase 1, investigator- and participant-blinded, placebo-controlled, randomized, crossover study to compare bioavailability of AQ280 following single oral doses of a capsule formulation versus a tablet for oral suspension formulation in healthy participants. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Eosinophilic Esophagitis
What is being tested?
AQ280 Capsule and AQ280 Tablet for Oral Suspension
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
9 participants
Where
1 siteUnited States
Study dates
13 Jun 2025to 22 Jul 2025
Phase
Phase 1
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
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Male or female, of any race, between 18 and 65 years of age, inclusive.
  • Females must not be pregnant or lactating.
  • Males and females of childbearing potential must agree to use contraception
  • Body mass index between 18.0 and 29.9 kg/m2, inclusive.
  • In good health, as determined by no clinically significant findings from medical history, 12-lead ECG and vital signs measurements, and clinical laboratory evaluations (congenital nonhemolytic hyperbilirubinemia [eg, suspicion of Gilbert's syndrome based on total and direct bilirubin] is not acceptable) at screening and check-in, and from the physical examination at check-in, as assessed by the investigator or designee.
  • Able to comprehend and are willing to sign the ICF and abide by the study restrictions.

Who cannot join

  • An individual who meets any of the following criteria at screening, unless otherwise stated, will be excluded from participation in this study:
  • Medical Conditions
  • Significant history or clinical manifestation of any metabolic, allergic, dermatological, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal, neurological, respiratory, endocrine, or psychiatric disorder, as determined by the investigator or designee.
  • History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance, as determined by the investigator or designee.
  • History of stomach or intestinal surgery or resection that would potentially alter absorption and/or excretion of orally administered drugs (uncomplicated appendectomy and hernia repair are allowed).
  • Any of the following:
Show all 41Show fewer
  • QTcF >450 ms in males or >470 ms in females, based on the longest value from the triplicate ECG measurements
  • QRS duration >120 ms, based on the longest value from the triplicate ECG measurements
  • PR interval >210 ms, based on the longest value from the triplicate ECG measurements
  • findings which would make QTc measurements difficult or QTc data uninterpretable
  • history of additional risk factors for torsades de pointes (eg, heart failure, hypokalemia, or family history of long QT syndrome).
  • Participants with an increased risk of thromboembolic events (eg, history of recurrent venous thrombosis or Factor V Leiden mutation).
  • Magnesium < LLN; participants with values that are borderline < LLN may be included, as determined by the investigator or designee.
  • History of any significant infectious disease, as assessed by the investigator, within 2 weeks prior to the first dose of IMP.
  • AST and/or ALT values > 1.2 × ULN.
  • Congenital nonhemolytic hyperbilirubinemia.
  • Hemoglobin value, neutrophil count (absolute), lymphocyte count (absolute), and/or platelet count < LLN; participants with values that are borderline < LLN may be included, as determined by the investigator or designee.
  • White blood cell count > ULN; participants with values that are borderline > ULN may be included, as determined by the investigator or designee.
  • eGFR < 90 mL/min/1.73 m2 (calculated using the CKD-EPI equation3).
  • Significant history of herpes infection (ie, severe herpes outbreaks requiring anti-viral treatment).
  • Positive hepatitis panel and/or positive human immunodeficiency virus test. Participants whose results are compatible with prior immunization may be included.
  • Current active tuberculosis based on Quantiferon™ tuberculosis Gold test or history of latent infection.
  • Prior and Concomitant Therapy
  • Administration of any vaccine within 30 days prior to dosing.
  • Use or intend to use any medications/products known to alter drug absorption, metabolism, or elimination processes, including St. John's wort, within 30 days prior to dosing, considered to potentially impact participant safety or the objectives of the study, as determined by the investigator or designee.
  • Use or intend to use any prescription medications/products, other than hormone replacement therapy, oral, implantable, transdermal, injectable, intravaginal, or intrauterine contraceptives, within 14 days prior to dosing, considered to potentially impact participant safety or the objectives of the study, as determined by the investigator or designee.
  • Use or intend to use any slow-release medications/products considered to still be active within 14 days prior to dosing, considered to potentially impact participant safety or the objectives of the study, as determined by the investigator or designee.
  • Use or intend to use any nonprescription medications/products including vitamins, minerals, and phytotherapeutic/herbal/plant-derived preparations within 7 days prior to dosing, considered to potentially impact participant safety or the objectives of the study, as determined by the investigator or designee.
  • Prior and Concurrent Clinical Study Experience
  • Participation in a clinical study involving administration of an IMP (new chemical entity) in the past 90 days or 5 half-lives of that drug (if known) prior to dosing, whichever is longer.
  • Have previously completed or withdrawn from this study or any other study investigating AQ280 and have previously received AQ280.
  • Diet and Lifestyle
  • Alcohol consumption of >21 units per week for males and >14 units for females. One unit of alcohol equals 12 oz (360 mL) beer, 1½ oz (45 mL) liquor, or 5 oz (150 mL) wine.
  • Positive urine drug screen at screening. Positive alcohol test result or positive urine drug screen at check-in.
  • History of alcoholism or drug/chemical abuse within 2 years prior to check-in.
  • Other
  • Use of tobacco- or nicotine-containing products within 3 months prior to check-in.
  • Receipt of blood products within 2 months prior to check-in.
  • Donation of blood from 3 months prior to screening, plasma from 2 weeks prior to screening, or platelets from 6 weeks prior to screening.
  • Poor peripheral venous access.
  • Participants who, in the opinion of the investigator or designee, should not participate in this study.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Clinical Research Site

    Madison, Wisconsin, 53704

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About this study

Official title: A Phase 1, Investigator- and Participant-blinded, Placebo-Controlled, Randomized, Crossover Study to Assess the Relative Bioavailability of Two Formulations of AQ280 in Healthy Participants

This is a Phase 1, investigator- and participant-blinded, placebo-controlled, randomized, crossover study to compare bioavailability of AQ280 following single oral doses of a capsule formulation versus a tablet for oral suspension formulation in healthy participants.

Being tested
AQ280 Capsule, AQ280 Tablet for Oral Suspension, Placebo Capsule, Placebo Tablet for Oral Suspension
Medical subject headings
Eosinophilic Esophagitis

What participants receive

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

  • AQ280 CapsuleDrug

    AQ280 administered orally in capsule formulation.

  • AQ280 Tablet for Oral SuspensionDrug

    AQ280 administered orally in tablet for oral suspension formulation.

  • Placebo CapsuleDrug

    Placebo administered orally in capsule formulation.

  • Placebo Tablet for Oral SuspensionDrug

    Placebo administered orally in tablet for oral suspension formulation.

Study groups in NCT07093008
Study groupRoleWhat they receive
Intervention Sequence 1Placebo comparatorTreatment Period 1: Placebo Capsule will be administered orally. Treatment Period 2: Placebo Tablet for Oral Suspension will be administered orally.
Receives: Drug: Placebo Capsule; Drug: Placebo Tablet for Oral Suspension
Intervention Sequence 2Placebo comparatorTreatment Period 1: Placebo Tablet for Oral Suspension will be administered orally. Treatment Period 2: Placebo Capsule will be administered orally.
Receives: Drug: Placebo Capsule; Drug: Placebo Tablet for Oral Suspension
Intervention Sequence 3ExperimentalTreatment Period 1: AQ280 Capsule will be administered orally. Treatment Period 2: AQ280 Tablet for Oral Suspension will be administered orally.
Receives: Drug: AQ280 Capsule; Drug: AQ280 Tablet for Oral Suspension
Intervention Sequence 4ExperimentalTreatment Period 1: AQ280 Tablet for Oral Suspension will be administered orally. Treatment Period 2: AQ280 Capsule will be administered orally.
Receives: Drug: AQ280 Capsule; Drug: AQ280 Tablet for Oral Suspension

What is being measured

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

  1. Ratio of AUC0-Inf for AQ280 Capsule vs Oral Suspension

    Ratio values were derived based on values for AUC0-Inf of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation.

    Measured: Pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  2. Ratio of Cmax for AQ280 Capsule vs Oral Suspension

    Ratio values were derived based on values for Cmax of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation.

    Measured: Pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  3. Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC0-∞)

    AUC0-∞ of relative bioavailability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  4. Area Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUC0-tlast)

    AUC0-tlast of relative bioavailability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  5. Maximum Observed Concentration (Cmax)

    Cmax of relative bioavailability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  6. Time of the Maximum Observed Concentration (Tmax)

    Tmax of relative bioavailability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  7. Apparent Terminal Elimination Half-life (t1/2)

    T1/2 of relative bioavailability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  8. Apparent Total Clearance (CL/F)

    CL/F of relative bioavailability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  9. Apparent Volume of Distribution During the Terminal Phase (Vz/F)

    Vz/F of relative bioavailability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

Secondary outcomes (7)
  1. Incidence and Severity of Adverse Events

    Incidence and severity of adverse events to assess the safety and tolerability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Screening, Day -1, pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  2. Number of Participants With Abnormal Electrocardiograms

    QTcF interval of >500 msec or change from baseline (Day 1, predose) >60 msec

    Measured: Screening, Day -1, pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  3. Number of Participants With Clinically Significant Abnormalities in Vital Signs - Blood Pressure (Systolic in mm Hg)

    Number of participants with clinically significant abnormalities in vital signs - blood pressure (systolic in mm Hg) to assess the safety and tolerability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Screening, Day -1, pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  4. Number of Participants With Clinically Significant Abnormalities in Vital Signs - Blood Pressure (Diastolic in mm Hg)

    Number of participants with clinically significant abnormalities in vital signs - blood pressure (diastolic in mm Hg) to assess the safety and tolerability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Screening, Day -1, pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  5. Number of Participants With Clinically Significant Abnormalities in Vital Signs - Pulse Rate (Beats Per Minute)

    Number of participants with clinically significant abnormalities in vital signs - pulse rate (beats per minute) to assess the safety and tolerability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Screening, Day -1, pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  6. Number of Participants With Clinically Significant Abnormalities in Vital Signs - Oral Body Temperature (°C)

    Number of participants with clinically significant abnormalities in vital signs - oral body temperature (°C) to assess the safety and tolerability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation

    Measured: Screening, Day -1, pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)

  7. Incidence of Abnormal Physical Examinations

    Incidence of abnormal physical examinations to assess the safety and tolerability of single oral doses of 100 mg AQ280 capsule formulation and 100 mg AQ280 tablet for oral suspension formulation.

    Any clinically significant findings observed during physical examinations following dose administration were reported as adverse events.

    Measured: From screening up to end of study (approximately 7 weeks)

Timeline

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

  1. First posted30 Jul 2025
  2. Study start13 Jun 2025
  3. Primary completion16 Jul 2025
  4. Study completion22 Jul 2025

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
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
9 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07093008
Sponsor's protocol ID
ARIA-2
Status last verified
Feb 2026
First submitted
4 Jul 2025
Last updated
1 Jun 2026
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 AQ280 Capsule and AQ280 Tablet for Oral Suspension in people with Eosinophilic Esophagitis, run by AQILION AB 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 6 inclusion and 41 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 1 Jun 2026. 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. 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 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?

Yes. Results are posted in the registry (first posted 1 Jun 2026). 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?

Ratio of AUC0-Inf for AQ280 Capsule vs Oral Suspension (time frame: Pre dose and up to 48 hours post dose (up to end of study - approximately 7 weeks)). The study lists 9 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 1 Jun 2026.

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