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Studies Evaluating the Effects of Itraconazole or Rifampicin on the Pharmacokinetics of TY-9591 Tablets in Healthy Subjects

This is a Single-center, Two-sequence, Open-label, Two-cycle Drug-drug Interaction (DDI) Study in Healthy Subjects. To Evaluate the Effects of Itraconazole Capsules, a Strong Inhibitor of CYP3A4, and Rifampicin Capsules, a Strong Inducer, on the Pharmacokinetics of TY-9591 Tablets After a Single Oral Dose

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06255951
Enrollment
48
Registered
2024-02-13
Start date
2024-03-12
Completion date
2024-12-27
Last updated
2024-12-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

NSCLC

Brief summary

Studies evaluating the effects of itraconazole or rifampicin on the pharmacokinetics of TY-9591 tablets in healthy subjects

Detailed description

To evaluate the pharmacokinetics of TY-9591 tablets in healthy Chinese subjects after a single oral administration. To evaluate the effects of itraconazole/rifampicin on the pharmacokinetics of TY-9591 and its metabolites D1 and D2 after oral administration of TY-9591 tablets.

Interventions

DRUGItraconazole

The study was divided into two sequences with a planned enrollment of 48 healthy adult subjects (24 in each sequence). PartA was the itraconazole study sequence, which was used to study the effect of itraconazole on the pharmacokinetic characteristics of TY-9591 tablets after multiple doses.

DRUGRifampicin

The study was divided into two sequences with a planned enrollment of 48 healthy adult subjects (24 in each sequence). PartB was the rifampin study sequence, which investigated the effect of multiple doses of rifampin on the pharmacokinetic profile of TY-9591 tablets.

Sponsors

TYK Medicines, Inc
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

PartA is the itraconazole study sequence,PartB was the rifampin study sequence.

Eligibility

Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

1. Male or female healthy adult subjects aged 18-45 years old (inclusive), in which male or female accounted for no less than 1/4 of the total number of subjects in each sequence. 2. Body mass index (BMI) between 19.0 and 26.0 kg/m2 \[BMI= weight (kg)/ height 2 (m2)\] (including boundary values). 3. Participants (including male participants) were infertile themselves, or agreed to use highly effective nonpharmacologic contraceptive methods or abstain completely from sex for 6 months after the last dose of self-medication. 4. Subjects voluntarily participated and signed an informed consent form. 5. Subjects had good communication with investigators and were able to complete the trial in accordance with the protocol.

Exclusion criteria

1. Those with clinically significant abnormalities in physical examination, vital signs, routine laboratory tests (blood routine, urine routine, blood biochemistry, coagulation function), 12-lead electrocardiogram, ophthalmic examination, abdominal color Doppler ultrasound (liver, bile duct, pancreas, spleen, kidney), etc. 2. Persons with one or more positive results of human immunodeficiency virus (HIV) antibody, hepatitis B virus surface antigen (HBsAg) or hepatitis C virus (HCV) antibody, or treponema pallidum antibody (Anti-TP). 3. smokers with an average of more than 10 cigarettes per day in the previous 3 months or habitual users of nicotine products who could not quit during the study. 4. Heavy drinking or regular drinking in the 3 months before the screening period, i.e. drinking more than 14 units of alcohol per week (1 unit =360 mL of beer or 45 mL of 40% spirits or 150 mL of wine); Or alcohol breath test results on admission > 0.0 mg/100 mL and those who could not abstain from alcohol during the experiment. 5. those who consumed excessive amounts of tea, coffee, and/or caffeinated beverages (average \> 8 cups/day, 250 mL/cup) in the 3 months before the screening period, and those who could not stop using them during the study period. 6. those who took dragon fruit, mango, grapefruit, chocolate, any food or beverage containing caffeine, diet rich in xanthine, and other special diets affecting drug absorption, distribution, metabolism, and excretion within 7 days before taking the drug. 7. Use of any drugs that inhibit or induce the liver CYP3A4 enzyme (see Appendix II), herbs, or foods containing herbal ingredients within 30 days before the screening period. 8. taking any medicine (including Chinese herbal medicine and health supplements) within 14 days before taking the test drug. 9. enrollment in any drug clinical trial within 3 months before the screening period. 10. Subjects who may not be able to complete the study for other reasons or who are considered unsuitable for the study by the investigators.

Design outcomes

Primary

MeasureTime frameDescription
Peak plasma concentrations (Cmax) of TY-9591 and its metabolites D1 and D2through study completion,an average of 6 monthsPeak plasma concentrations (Cmax) of TY-9591 and its metabolites D1 and D2
Area under the concentration-time curve from 0 to the last quantifiable time point after dose administration (AUC0-t)through study completion,an average of 6 monthsArea under the concentration-time curve from 0 to the last quantifiable time point after dose administration (AUC0-t)
Area under the concentration-time curve from 0 to infinity (AUC0-inf), as data permitthrough study completion,an average of 6 monthsArea under the concentration-time curve from 0 to infinity (AUC0-inf), as data permit

Secondary

MeasureTime frameDescription
apparent clearance rate (CL/F) of TY-9591 and its metabolites D1 and D2through study completion,an average of 6 monthsapparent clearance rate (CL/F) of TY-9591 and its metabolites D1 and D2
apparent volume of distribution (Vd/F) of TY-9591 and its metabolites D1 and D2through study completion,an average of 6 monthsapparent volume of distribution (Vd/F) of TY-9591 and its metabolites D1 and D2
Time to peak concentration (Tmax) of TY-9591 and its metabolites D1 and D2through study completion,an average of 6 monthsTime to peak concentration (Tmax) of TY-9591 and its metabolites D1 and D2
Cmax ratio of metabolites to original drugthrough study completion,an average of 6 monthsCmax ratio of metabolites to original drug
AUC ratio of metabolites to original drugthrough study completion,an average of 6 monthsAUC ratio of metabolites to original drug
mean retention time (MRT) of TY-9591 and its metabolites D1 and D2through study completion,an average of 6 monthsmean retention time (MRT) of TY-9591 and its metabolites D1 and D2
The half-life of elimination phase (t1/2) of TY-9591 and its metabolites D1 and D2through study completion,an average of 6 monthsThe half-life of elimination phase (t1/2) of TY-9591 and its metabolites D1 and D2
elimination rate constant (λz) of TY-9591 and its metabolites D1 and D2through study completion,an average of 6 monthselimination rate constant (λz) of TY-9591 and its metabolites D1 and D2

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026