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Healthy ParticipantsPhase 1NCT07449390

Drug-drug Interaction Trial of AP31969 and Carbamazepine or Itraconazole

A Phase 1 study testing AP31969, Carbamazepine and Itraconazole in people with Healthy Participants, run by Acesion Pharma 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

The primary objective of the trial is to assess the effect of multiple doses of the cytochrome P450 (CYP3A4) enzyme inducer carbamazepine (Part A) or the CYP3A4 inhibitor itraconazole (Part B) on the single-dose pharmacokinetics (PK) of AP31969 in healthy participants. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Participants
What is being tested?
AP31969, Carbamazepine and Itraconazole
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
28 participants
Where
1 siteUnited States
Study dates
1 Apr 2026to 16 May 2026
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

  • Age: 18 to 55 years, inclusive, at screening.
  • Weight: ≥50 kg, at screening.
  • Body mass index (BMI): 18.0 to 32.0 kg/m^2, inclusive, at screening.
  • Sex: male or female; female participants may be of childbearing potential or of nonchildbearing potential.
  • In good physical and mental health.

Who cannot join

  • History and/or presence of any illness or condition that, in the opinion of the Investigator, might confound the results of the trial or pose an additional risk when administering the trial drugs to the participant (with particular focus on cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrinological, hematological, cerebrovascular, and neurological diseases including history of syncope and/or convulsions).
  • Personal or first-degree relative family history of congenital long QT syndrome or sudden death.
  • History of cardiac arrhythmias, except first degree atrial-ventricular block.
  • QT interval corrected using fridericia's formula (QTcF)-interval >450 ms for males and >470 ms for females.
  • Resting supine systolic blood pressure (BP) (average of 3 readings) >160 mmHg or <80 mmHg and diastolic BP (average of 3 readings) >90 mmHg or <50 mmHg at screening or admission. If initial results do not meet these criteria, BP may be repeated if in the judgment of the Investigator there is a reason to believe the initial result is inaccurate (e.g., white coat hypertension).
  • Use of any prescribed medication within 30 days prior to admission, based on Investigator's judgment. An exception is made for hormonal contraceptives, which may be used throughout the trial.
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  • Use of any over-the-counter medication, vitamin preparations and other food supplements, or herbal medications (e.g., St. John's wort) within 14 days prior to admission, based on Investigator's judgment. An exception is made for acetaminophen/paracetamol, which is allowed up to 2 g/day.
  • Positive drug and alcohol screen (opiates, methadone, cocaine, amphetamines [including ecstasy], cannabinoids, barbiturates, benzodiazepines, tricyclic antidepressants, and alcohol) at screening or admission.
  • Alcohol consumption exceeding 2 standard drinks per day on average (1 standard drink=12 oz beer, 5 oz wine, and 1.5 oz spirits) within 12 months prior to screening.
  • Use of alcohol within 48 hours (2 days) prior to screening or admission.
  • History of drug addiction (including soft drugs like cannabis products) within 2 years prior to screening.
  • Consumption of grapefruit, Seville oranges, pomelos, star fruit, or cranberries (or their juices) within 14 days prior to the first trial drug administration.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • ICON Early Phase Services, LLC

    San Antonio, Texas, 78232

Other trials in United States

About this study

Official title: Open-label, 2-Part, Fixed-sequence, Crossover Trial Design to Determine the Effect of a Strong CYP3A4 Inducer (Carbamazepine) And a Strong CYP3A4 Inhibitor (Itraconazole) on the Pharmacokinetics of a Single Oral Dose of AP31969 in Healthy Participants

The primary objective of the trial is to assess the effect of multiple doses of the cytochrome P450 (CYP3A4) enzyme inducer carbamazepine (Part A) or the CYP3A4 inhibitor itraconazole (Part B) on the single-dose pharmacokinetics (PK) of AP31969 in healthy participants.

Being tested
AP31969, Carbamazepine, Itraconazole
Keywords
CYP3A4, AP31969, Carbamazepine, Itraconazole

What participants receive

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

  • AP31969Drug

    Oral tablets.

  • CarbamazepineDrug

    Oral capsules.

  • ItraconazoleDrug

    Oral tablets.

Study groups in NCT07449390
Study groupRoleWhat they receive
Part A, Treatment Period 1 + Treatment Period 2: AP31969 + CarbamazepineExperimentalPart A - Treatment Period 1: Participants will receive a single oral dose of AP31969 350 mg, tablet on Day 1. Part A - Treatment Period 2: Participants will receive a single oral dose of AP31969 350 mg on Day 15. In addition, participants will receive carbamazepine oral capsules administered twice daily (BID) as follows: 100 mg BID on Days 4 to 6, 200 mg BID on Days 7 to 9, and 300 mg BID on Days 10 to 17.
Receives: Drug: AP31969; Drug: Carbamazepine
Part B, Treatment Period 1 + Treatment Period 2: AP31969 + ItraconazoleExperimentalPart B - Treatment Period 1: Participants will receive a single oral dose of AP31969 350 mg, tablet on Day 1. Part B - Treatment Period 2: Participants will receive a single oral dose of AP31969 350 mg, tablet on Day 7. In addition, participants will receive a single oral dose of itraconazole 200 mg, tablets from Day 4 to Day 6 and Days 8 to 12.
Receives: Drug: AP31969; Drug: Itraconazole

What is being measured

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

  1. Part A: Maximum Observed Plasma Concentration (Cmax) of AP31969 When Administered Alone and With Carbamazepine

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1 and AP31969 in combination: predose, and at 0.5 to 72 hours postdose on Day 15; Carbamazepine alone: predose on Day 15 and morning on Day 18

  2. Part B: Cmax of AP31969 When Administered Alone and With Itraconazole

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1, and AP31969 in combination: predose and at 0.5 to 144 hours postdose on Day 15; Itraconazole alone: predose on Day 7 and morning on Day 13

  3. Part A: Area Under the Plasma Concentration-time Curve (AUC) from Time 0 to Time of Last Quantifiable Concentration (AUC0-last) of AP31969 When Administered Alone and With Carbamazepine

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1 and AP31969 in combination: predose, and at 0.5 to 72 hours postdose on Day 15; Carbamazepine alone: predose on Day 15 and morning on Day 18

  4. Part B: AUC0-last of AP31969 When Administered Alone and With Itraconazole

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1, and AP31969 in combination: predose and at 0.5 to 144 hours postdose on Day 15; Itraconazole alone: predose on Day 7 and morning on Day 13

  5. Part A: AUC from Time 0 to Infinity (AUC0-inf) of AP31969 When Administered Alone and With Carbamazepine

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1 and AP31969 in combination: predose, and at 0.5 to 72 hours postdose on Day 15; Carbamazepine alone: predose on Day 15 and morning on Day 18

  6. Part B: AUC0-inf of AP31969 When Administered Alone and With Itraconazole

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1, and AP31969 in combination: predose and at 0.5 to 144 hours postdose on Day 15; Itraconazole alone: predose on Day 7 and morning on Day 13

Secondary outcomes (16)
  1. Part A: Time to Cmax (tmax) of AP31969 When Administered Alone and With Carbamazepine

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1 and AP31969 in combination: predose, and at 0.5 to 72 hours postdose on Day 15; Carbamazepine alone: predose on Day 15 and morning on Day 18

  2. Part B: tmax of AP31969 When Administered Alone and With Itraconazole

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1, and AP31969 in combination: predose and at 0.5 to 144 hours postdose on Day 15; Itraconazole alone: predose on Day 7 and morning on Day 13

  3. Part A: Terminal Elimination Half-life (t1/2) of AP31969 When Administered Alone and With Carbamazepine

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1 and AP31969 in combination: predose, and at 0.5 to 72 hours postdose on Day 15; Carbamazepine alone: predose on Day 15 and morning on Day 18

  4. Part B: t1/2 of AP31969 When Administered Alone and With Itraconazole

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1, and AP31969 in combination: predose and at 0.5 to 144 hours postdose on Day 15; Itraconazole alone: predose on Day 7 and morning on Day 13

  5. Part A: AUC from Time 0 to 24 hours (AUC0-24) of AP31969 When Administered Alone and With Carbamazepine

    Measured: AP31969 alone: predose, and at 0.5 to 24 hours postdose on Day 1 and AP31969 in combination: predose, and at 0.5 to 24 hours postdose on Day 15; Carbamazepine alone: predose on Day 15 and morning on Day 18

  6. Part B: AUC0-24 of AP31969 When Administered Alone and With Itraconazole

    Measured: AP31969 alone: predose, and at 0.5 to 24 hours postdose on Day 1, and AP31969 in combination: predose and at 0.5 to 24 hours postdose on Day 15; Itraconazole alone: predose on Day 7 and morning on Day 13

  7. Part A: Apparent Oral Clearance (CL/F) of AP31969 When Administered Alone and With Carbamazepine

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1 and AP31969 in combination: predose, and at 0.5 to 72 hours postdose on Day 15; Carbamazepine alone: predose on Day 15 and morning on Day 18

  8. Part B: CL/F of AP31969 When Administered Alone and With Itraconazole

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1, and AP31969 in combination: predose and at 0.5 to 144 hours postdose on Day 15; Itraconazole alone: predose on Day 7 and morning on Day 13

  9. Part A: Apparent Volume of Distribution at Terminal Phase (Vz/F) of AP31969 When Administered Alone and With Carbamazepine

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1 and AP31969 in combination: predose, and at 0.5 to 72 hours postdose on Day 15; Carbamazepine alone: predose on Day 15 and morning on Day 18

  10. Part B: Vz/F of AP31969 When Administered Alone and With Itraconazole

    Measured: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1, and AP31969 in combination: predose and at 0.5 to 144 hours postdose on Day 15; Itraconazole alone: predose on Day 7 and morning on Day 13

  11. Part A: Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs) of AP31969 When Administered Alone and With Carbamazepine

    Any clinically significant changes in physical examination findings and abnormal objective test findings (e.g., in clinical laboratory, vital signs, ECGs) will be recorded as AEs as per investigators discretion.

    Measured: AP31969 alone: Days 1 to 4; Carbamazepine alone: Days 4 to 15; Combination: Days 15 to 24

  12. Part B: Number of Participants with AEs and SAEs of AP31969 When Administered Alone and With Itraconazole

    Any clinically significant changes in physical examination findings and abnormal objective test findings (e.g., in clinical laboratory, vital signs, ECGs) will be recorded as AEs as per investigators discretion.

    Measured: AP31969 alone: Days 1 to 4; Itraconazole alone: Days 4 to 7; Combination: Days 7 to 19

  13. Part A: Number of Participants with Mild, Moderate and Severe AEs of AP31969 When Administered Alone and With Carbamazepine

    The severity of AEs will be graded as follows: 1. Mild: an AE that is easily tolerated by the participant, causes minimal discomfort, does not interfere with everyday activities, and does not require intervention. 2. Moderate: an AE that is sufficiently discomforting to interfere with normal everyday activities; intervention may be needed. 3. Severe: an AE that prevents normal everyday activities; treatment or other intervention usually needed.

    Measured: AP31969 alone: Days 1 to 4; Carbamazepine alone: Days 4 to 15; Combination: Days 15 to 24

  14. Part B: Number of Participants with Mild, Moderate and Severe AEs of AP31969 When Administered Alone and With Itraconazole

    The severity of AEs will be graded as follows: 1. Mild: an AE that is easily tolerated by the participant, causes minimal discomfort, does not interfere with everyday activities, and does not require intervention. 2. Moderate: an AE that is sufficiently discomforting to interfere with normal everyday activities; intervention may be needed. 3. Severe: an AE that prevents normal everyday activities; treatment or other intervention usually needed.

    Measured: AP31969 alone: Days 1 to 4; Itraconazole alone: Days 4 to 7; Combination: Days 7 to 19

  15. Part A: Number of Participants with TEAEs Related to AP31969 When Administered Alone and With Carbamazepine

    The relationship between the AEs and the trial drug (AP31969, carbamazepine, or itraconazole) will be assessed and graded as none, unlikely, possibly, likely, or definitely. Adverse events graded as possibly, likely, or definitely related will be considered related to the trial drug; AEs graded as none or unlikely related will be considered not related to the trial drug.

    Measured: AP31969 alone: Days 1 to 4; Carbamazepine alone: Days 4 to 15; Combination: Days 15 to 24

  16. Part B: Number of Participants with TEAEs Related to AP31969 When Administered Alone and With Itraconazole

    The relationship between the AEs and the trial drug (AP31969, carbamazepine, or itraconazole) will be assessed and graded as none, unlikely, possibly, likely, or definitely. Adverse events graded as possibly, likely, or definitely related will be considered related to the trial drug; AEs graded as none or unlikely related will be considered not related to the trial drug.

    Measured: AP31969 alone: Days 1 to 4; Itraconazole alone: Days 4 to 7; Combination: Days 7 to 19

Timeline

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

  1. First posted4 Mar 2026
  2. Study start1 Apr 2026
  3. Primary completion9 May 2026
  4. Study completion16 May 2026

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
Non-randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
28 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07449390
Sponsor's protocol ID
AP31969-M103
Status last verified
May 2026
First submitted
27 Feb 2026
Last updated
22 May 2026
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 AP31969, Carbamazepine and Itraconazole in people with Healthy Participants, run by Acesion Pharma 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 5 inclusion and 12 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 22 May 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. 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?

Part A: Maximum Observed Plasma Concentration (Cmax) of AP31969 When Administered Alone and With Carbamazepine (time frame: AP31969 alone: predose, and at 0.5 to 72 hours postdose on Day 1 and AP31969 in combination: predose, and at 0.5 to 72 hours postdose on Day 15; Carbamazepine alone: predose on Day 15 and morning on Day 18). 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 22 May 2026.

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