This Study in Healthy Men and Women Tests Whether BI 409306 Has an Effect on the ECG (Thorough QT Study)

Phase 1

Completed

Conditions: Healthy

Interventions: Drug: BI 409306
Drug: Moxifloxacin
Drug: Placebo matching to BI 409306

Registration Number: NCT03934203

Lead Sponsor: Boehringer Ingelheim

Brief Summary: The primary objective of this trial is to assess the effect of BI 409306 on the QT/QTc interval in healthy male and female volunteers as measured by the QTcF change from baseline compared with placebo.

Secondary objectives are to show the assay sensitivity of the trial, by reproducing the typical effect of the positive control moxifloxacin on the QT/QTc interval, and to assess the effect of BI 409306 on heart rate.

Detailed Description: Not available

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 47

Inclusion Criteria

Healthy male or female subjects according to the assessment of the investigator, based on a complete medical history including a physical examination, vital signs (Blood Pressure (BP), Pulse Rate (PR)), 12-lead single Electrocardiogram (ECG) and 12-lead Holter Electrocardiogram (ECG), and clinical laboratory tests
Age of 18 to 50 years (incl.)
Body mass index (BMI) of 18.5 to 29.9 kg/m2 (incl.)
Signed and dated written informed consent prior to admission to the study in accordance with Good clinical practice (GCP) and local legislation
Male subjects, or female subjects who meet any of the following criteria starting from at least 30 days before the first administration of trial medication and until 30 days after trial completion:
- Use of adequate contraception, e.g. non-hormonal intrauterine device plus condom
- Sexually abstinent
- A vasectomised sexual partner (vasectomy at least 1 year prior to enrolment)
- Surgically sterilised (including hysterectomy)
- Postmenopausal, defined as at least 1 year of spontaneous amenorrhea (in questionable cases a blood sample with simultaneous levels of FSH above 40 U/L and estradiol below 30 ng/L is confirmatory)

Exclusion Criteria

Any finding in the medical examination (including Blood Pressure (BP), Pulse Rate (PR) or Electrocardiogram (ECG)) is deviating from normal and judged as clinically relevant by the investigator
Repeated measurement of systolic blood pressure outside the range of 100 to 140 mmHg, diastolic blood pressure outside the range of 50 to 90 mmHg, or pulse rate outside the range of 45 to 90 bpm
Any laboratory value outside the reference range that the investigator considers to be of clinical relevance
Any evidence of a concomitant disease judged as clinically relevant by the investigator
Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders
Cholecystectomy and/or surgery of the gastrointestinal tract that could interfere with the pharmacokinetics of the trial medication (except appendectomy and simple hernia repair)
Diseases of the central nervous system (including but not limited to any kind of seizures or stroke), and other relevant neurological or psychiatric disorders
History of relevant orthostatic hypotension, fainting spells, or blackouts
Chronic or relevant acute infections
History of relevant allergy or hypersensitivity (including allergy to the trial medication or its excipients)
Further exclusion criteria apply

Study & Design

Study Type: INTERVENTIONAL

Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
L/P/H/M/P treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
H/L/P/P/M treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
H/M/P/P/L treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
H/L/P/P/M treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
H/P/P/M/L treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
L/M/H/P/P treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
H/M/P/P/L treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
L/M/H/P/P treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
L/P/H/M/P treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
L/P/M/H/P treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
H/P/P/M/L treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
M/L/P/H/P treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
L/P/M/H/P treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
M/H/P/L/P treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
M/P/H/P/L treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/H/L/P/M treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/P/L/H/M treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/M/P/L/H treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/M/P/L/H treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
M/P/H/P/L treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/H/L/P/M treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/H/L/M/P treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/L/M/P/H treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/H/L/M/P treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/P/M/L/H treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/P/M/L/H treatment sequence	Placebo matching to BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
M/H/P/L/P treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/L/M/P/H treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
M/L/P/H/P treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/P/L/H/M treatment sequence	BI 409306	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
H/L/P/P/M treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
H/M/P/P/L treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
H/P/P/M/L treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
L/M/H/P/P treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
L/P/H/M/P treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
L/P/M/H/P treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
M/H/P/L/P treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
M/L/P/H/P treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
M/P/H/P/L treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/H/L/M/P treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/H/L/P/M treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/L/M/P/H treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/M/P/L/H treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/P/L/H/M treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.
P/P/M/L/H treatment sequence	Moxifloxacin	In this randomized, placebo-controlled, 5-period crossover trial participants were randomized to one of 15 possible treatment sequences based on a balanced, Prescott triple Latin square design. Treatments administered were 50 mg BI 409306 administered orally as a single dose (1 film-coated tablet plus 4 film-coated placebo tablets), 250 mg BI 409306 administered orally as a single dose (5 film-coated tablets), 400 mg moxifloxacin administered orally as a single dose (1 film-coated tablet), Placebo 1 and Placebo 2 both administered orally as a single dose (5 film-coated tablets). In all treatment periods tablets were taken with 240 milliliter of water after an overnight fast of at least 10 hours on day 1 of the treatment period. The trial was double-blind for placebo and BI 409306, but open-label for moxifloxacin. A washout period of least 6 days was adhered to between drug administrations. L=50 mg BI 409306, H=250 mg BI 409306, M= 400 mg moxifloxacin, P=Placebo 1/Placebo 2.

Primary Outcome Measures

Name	Time	Method
Change From Baseline in QTcF at That Timepoint Between 20 Minutes to 24 Hours After Drug Administration Where the Difference of Means in QTcF Changes From Baseline Between 250 Milligram (mg) BI 409306 and Placebo Takes Its Maximum	Baseline, 20 minutes (min), 40 min, 1 hour (h), 1 h 30 min, 2 h, 2 h 30 min, 3 h, 4 h, 8 h, 12 h, 24 h after study drug administration	QTcF is the QT interval (Electrocardiogram (ECG) interval from the beginning of the QRS complex to the end of the T wave) corrected using Fridericia's formula. Change from baseline in QTcF at that timepoint between 20 minutes to 24 hours after drug administration where the difference of means in QTcF changes from baseline between 250 mg BI 409306 and placebo takes its maximum. A linear mixed-effects model for repeated measurements based on Schall and Ring (MMRM) was fitted to the observations for 250 mg BI 409306 and the 2 placebo periods. Total number of participants per treatment and timepoint can be lower than 47 due to participants having left their treatment sequence before being exposed to the respective treatment, or due to exclusion of individual participant ECG data at timepoints affected by ECG-relevant important protocol deviations.
Change From Baseline in QTcF at That Timepoint Between 20 Minutes to 24 Hours After Drug Administration Where the Difference of Means in QTcF Changes From Baseline Between 50 Milligram (mg) BI 409306 and Placebo Takes Its Maximum	Baseline, 20 minutes (min), 40 min, 1 hour (h), 1 h 30 min, 2 h, 2 h 30 min, 3 h, 4 h, 8 h, 12 h, 24 h after study drug administration	QTcF is the QT interval (Electrocardiogram (ECG) interval from the beginning of the QRS complex to the end of the T wave) corrected using Fridericia's formula. Change from baseline in QTcF at that timepoint between 20 minutes to 24 hours after drug administration where the difference of means in QTcF changes from baseline between 50 mg BI 409306 and placebo takes its maximum. A linear mixed-effects model for repeated measurements based on Schall and Ring (MMRM) was fitted to the observations for 50 mg BI 409306 and the 2 placebo periods. Total number of participants per treatment and timepoint can be lower than 47 due to participants having left their treatment sequence before being exposed to the respective treatment, or due to exclusion of individual participant ECG data at timepoints affected by ECG-relevant important protocol deviations.

Secondary Outcome Measures

Name	Time	Method
Change From Baseline in QTcF at 4 Hours After Drug Administration (Assessment of Assay Sensitivity)	Baseline, 20 minutes (min), 40 min, 1 hour (h), 1 h 30 min, 2 h, 2 h 30 min, 3 h, 4 h, 8 h, 12 h, 24 h after study drug administration	QTcF is the QT interval (Electrocardiogram (ECG) interval from the beginning of the QRS complex to the end of the T wave) corrected using Fridericia's formula. Change from baseline in QTcF at 4 hours after drug administration. A linear mixed-effects model for repeated measurements based on Schall and Ring (MMRM) was fitted to the observations for moxifloxacin and the 2 placebo periods. Total number of participants per treatment and timepoint can be lower than 47 due to participants having left their treatment sequence before being exposed to the respective treatment, or due to exclusion of individual participant ECG data at timepoints affected by ECG-relevant important protocol deviations.
Change From Baseline in QTcF at That Timepoint Between 20 Minutes to 24 Hours After Drug Administration Where the Difference of Means in QTcF Changes From Baseline Between Moxifloxacin and Placebo Takes Its Maximum	Baseline, 20 minutes (min), 40 min, 1 hour (h), 1 h 30 min, 2 h, 2 h 30 min, 3 h, 4 h, 8 h, 12 h, 24 h after study drug administration	QTcF is the QT interval (Electrocardiogram (ECG) interval from the beginning of the QRS complex to the end of the T wave) corrected using Fridericia's formula. Change from baseline in QTcF at that timepoint between 20 minutes to 24 hours after drug administration where the difference of means in QTcF changes from baseline between moxifloxacin and placebo takes its maximum. A linear mixed-effects model for repeated measurements based on Schall and Ring (MMRM) was fitted to the observations for moxifloxacin and the 2 placebo periods. Total number of participants per treatment and timepoint can be lower than 47 due to participants having left their treatment sequence before being exposed to the respective treatment, or due to exclusion of individual participant ECG data at timepoints affected by ECG-relevant important protocol deviations.
Change From Baseline in QTcF at 2 Hours After Drug Administration (Assessment of Assay Sensitivity)	Baseline, 20 minutes (min), 40 min, 1 hour (h), 1 h 30 min, 2 h, 2 h 30 min, 3 h, 4 h, 8 h, 12 h, 24 h after study drug administration	QTcF is the QT interval (Electrocardiogram (ECG) interval from the beginning of the QRS complex to the end of the T wave) corrected using Fridericia's formula. Change from baseline in QTcF at 2 hours after drug administration. A linear mixed-effects model for repeated measurements based on Schall and Ring (MMRM) was fitted to the observations for moxifloxacin and the 2 placebo periods. Total number of participants per treatment and timepoint can be lower than 47 due to participants having left their treatment sequence before being exposed to the respective treatment, or due to exclusion of individual participant ECG data at timepoints affected by ECG-relevant important protocol deviations.
Change From Baseline in QTcF at 3 Hours After Drug Administration (Assessment of Assay Sensitivity)	Baseline, 20 minutes (min), 40 min, 1 hour (h), 1 h 30 min, 2 h, 2 h 30 min, 3 h, 4 h, 8 h, 12 h, 24 h after study drug administration	QTcF is the QT interval (Electrocardiogram (ECG) interval from the beginning of the QRS complex to the end of the T wave) corrected using Fridericia's formula. Change from baseline in QTcF at 3 hours after drug administration. A linear mixed-effects model for repeated measurements based on Schall and Ring (MMRM) was fitted to the observations for moxifloxacin and the 2 placebo periods. Total number of participants per treatment and timepoint can be lower than 47 due to participants having left their treatment sequence before being exposed to the respective treatment, or due to exclusion of individual participant ECG data at timepoints affected by ECG-relevant important protocol deviations.
Change From Baseline in Heart Rate (HR) at That Timepoint Between 20 Minutes to 24 Hours After Drug Administration Where the Difference of Means in Heart Rate Changes From Baseline Between 50 Milligram (mg) BI 409306 and Placebo Takes Its Minimum	Baseline, 20 minutes (min), 40 min, 1 hour (h), 1 h 30 min, 2 h, 2 h 30 min, 3 h, 4 h, 8 h, 12 h, 24 h after study drug administration	Change from baseline in heart rate (HR) at that timepoint between 20 minutes to 24 hours after drug administration where the difference of means in heart rate changes from baseline between 50 milligram (mg) BI 409306 and placebo takes its minimum. A linear mixed-effects model for repeated measurements based on Schall and Ring (MMRM) was fitted to the observations for 50 mg BI 409306 and the 2 placebo periods. Total number of participants per treatment and timepoint can be lower than 47 due to participants having left their treatment sequence before being exposed to the respective treatment, or due to exclusion of individual participant ECG data at timepoints affected by ECG-relevant important protocol deviations.
Change From Baseline in Heart Rate (HR) at That Timepoint Between 20 Minutes to 24 Hours After Drug Administration Where the Difference of Means in Heart Rate Changes From Baseline Between 50 Milligram (mg) BI 409306 and Placebo Takes Its Maximum	Baseline, 20 minutes (min), 40 min, 1 hour (h), 1 h 30 min, 2 h, 2 h 30 min, 3 h, 4 h, 8 h, 12 h, 24 h after study drug administration	Change from baseline in heart rate (HR) at each timepoint between 20 minutes to 24 hours after drug administration where the difference of means in heart rate changes from baseline between 50 milligram (mg) BI 409306 and placebo takes its maximum. A linear mixed-effects model for repeated measurements based on Schall and Ring (MMRM) was fitted to the observations for 50 mg BI 409306 and the 2 placebo periods. Total number of participants per treatment and timepoint can be lower than 47 due to participants having left their treatment sequence before being exposed to the respective treatment, or due to exclusion of individual participant ECG data at timepoints affected by ECG-relevant important protocol deviations.
Change From Baseline in Heart Rate (HR) at That Timepoint Between 20 Minutes to 24 Hours After Drug Administration Where the Difference of Means in Heart Rate Changes From Baseline Between 250 Milligram (mg) BI 409306 and Placebo Takes Its Maximum	Baseline, 20 minutes (min), 40 min, 1 hour (h), 1 h 30 min, 2 h, 2 h 30 min, 3 h, 4 h, 8 h, 12 h, 24 h after study drug administration	Change from baseline in heart rate (HR) at that timepoint between 20 minutes to 24 hours after drug administration where the difference of means in heart rate changes from baseline between 250 milligram (mg) BI 409306 and placebo takes its maximum. A linear mixed-effects model for repeated measurements based on Schall and Ring (MMRM) was fitted to the observations for 250 mg BI 409306 and the 2 placebo periods. Total number of participants per treatment and timepoint can be lower than 47 due to participants having left their treatment sequence before being exposed to the respective treatment, or due to exclusion of individual participant ECG data at timepoints affected by ECG-relevant important protocol deviations.
Change From Baseline in Heart Rate (HR) at That Timepoint Between 20 Minutes to 24 Hours After Drug Administration Where the Difference of Means in Heart Rate Changes From Baseline Between 250 Milligram (mg) BI 409306 and Placebo Takes Its Minimum	Baseline, 20 minutes (min), 40 min, 1 hour (h), 1 h 30 min, 2 h, 2 h 30 min, 3 h, 4 h, 8 h, 12 h, 24 h after study drug administration	Change from baseline in heart rate (HR) at that timepoint between 20 minutes to 24 hours after drug administration where the difference of means in heart rate changes from baseline between 250 milligram (mg) BI 409306 and placebo takes its minimum. A linear mixed-effects model for repeated measurements based on Schall and Ring (MMRM) was fitted to the observations for 250 mg BI 409306 and the 2 placebo periods. Total number of participants per treatment and timepoint can be lower than 47 due to participants having left their treatment sequence before being exposed to the respective treatment, or due to exclusion of individual participant ECG data at timepoints affected by ECG-relevant important protocol deviations.