A Study to Evaluate the Effect of the Potent CYP3A4 Inhibitor Itraconazole on the Pharmacokinetics (PK) of TAK-906 in Healthy Participants

The drug being tested in this study is called TAK-906. TAK-906 is being tested in healthy participants in order to evaluate the effect of the potent CYP3A4 inhibitor itraconazole on the single-dose PK of TAK-906 maleate.

The study enrolled 12 participants. Participants received the following treatment sequence:

• TAK-906 maleate 25 mg; Itraconazole 200 mg + TAK-906 maleate 25 mg

Participants were given an oral dose of TAK-906 in the First Intervention Period which was followed by a washout period, after which participants were given Itraconazole solution along with TAK-906 orally in the Second Intervention Period.

This single center trial was conducted in the United States. The overall duration to participate in this study was 7 weeks. Participants remained confined in the clinic from Day 1 up to Day 2 (First Intervention Period) and Day 4 up Day 6 (Second Intervention Period). Participants returned for a Follow-up Visit, 10 to 14 days after last dose of study drug.

Inclusion criteria

• Is a man or woman (with no child bearing potential) aged 18 to 55 years, inclusive, at the Screening Visit.
• Has a body mass index (BMI) greater than or equal to (>=) 18 and less than or equal to (<=) 30 kilogram per square meter (kg/m^2) and a body weight greater than (>) 50 kilogram (kg) at the Screening Visit.
• Is a nonsmoker who has not used tobacco- or nicotine-containing products (example, nicotine patch) for at least 6 months before administration of the initial dose of trial drug/invasive procedure.

Exclusion criteria

• Has a positive alcohol or drug screen.
• Has had a major surgery, donated or lost 1 unit of blood (approximately 500 milliliter [mL]) within 8 weeks of the first dose of study drug.
• Has a history of alcohol consumption exceeding 2 standard drinks per day on average (1 glass is approximately equivalent to: beer [354 mL/12 ounces], wine [118 mL/4 ounces], or distilled spirits [29.5 mL/1 ounce] per day).
• Consumes excessive amounts, defined as greater than 6 servings (1 serving is approximately equivalent to 120 mg of caffeine) of coffee, tea, cola, energy drinks, or other caffeinated beverages per day.
• Has a substance abuse disorder.