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A Pharmacokinetic Study of Tedizolid Phosphate in Pediatric Participants With Gram-Positive Infections (MK-1986-014)

A Phase 1, Single- and Multiple-Dose Safety and Pharmacokinetic Study of Oral and IV Tedizolid Phosphate (MK-1986) in Inpatients Under 2 Years Old

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03217565
Enrollment
47
Registered
2017-07-14
Start date
2019-02-06
Completion date
2023-04-06
Last updated
2025-02-11

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

Conditions

Gram-Positive Infections

Brief summary

The primary objectives of this study are to describe the single-dose, and multiple dose pharmacokinetics (PK) of intravenous (IV) tedizolid phosphate, or a single dose oral suspension of tedizolid phosphate, when administered to pediatric participants, full-term neonates, and preterm neonates.

Detailed description

Per protocol, PK analysis in Part A Group 1 will be conducted across ages in Cohorts 1 and 2 combined: Part A Group 1 Cohort 1 + Cohort 2: 28 days to \<24 months.

Interventions

DRUGIV Tedizolid Phosphate

A single dose, or twice daily dose for 3 days, of tedizolid phosphate administered IV.

DRUGOral Suspension Tedizolid Phosphate

A single dose of tedizolid phosphate administered as an oral suspension.

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
1 Days to 24 Months
Healthy volunteers
No

Inclusion criteria

* Is receiving prophylaxis for or has a confirmed or suspected infection with gram-positive bacteria and receiving concurrent antibiotic treatment with gram -positive antibacterial activity. * Is at least 1 kg in weight. * Is in stable condition as determined from medical history, physical examination, electrocardiogram (ECG), vital signs, and clinical laboratory evaluations. * Has no clinically significant ECG abnormalities. * Has sufficient vascular access to receive trial drug, and allow for required blood draws. * Is able to receive medication by mouth, for those dosed with oral suspension; dose administration via feeding tube is acceptable.

Exclusion criteria

* Has a history of seizures, other than febrile seizures, clinically significant cardiac arrhythmia or condition, moderate or severe renal impairment, or any physical condition that could interfere with the interpretation of the study results, as determined by the Investigator. * Has used rifampin within 14 days prior to dosing. * Has used or will be using proton pump inhibitors, H2 blockers, or antacids (for participants in Part B, i.e, oral suspension dose) at any time from 24 hours prior to dosing through 24 hours after dosing.. * Has a recent (3-month) history or current infection with viral hepatitis or other significant hepatic disease. * Has a history of drug allergy or hypersensitivity to oxazolidinones. * Has had significant blood loss. * Need for oral administration of topotecan, rosuvastatin, irinotecan, or methotrexate during administration of oral study drug. * Used monoamine oxidase inhibitors (MAOIs) or serotonergic agents including tricyclic antidepressants, selective serotonin reuptake inhibitors (SSRIs), and serotonin 5-hydroxytryptamine receptor agonists (triptans), meperidine, or buspirone within 14 days prior to study, or planned use while on study. * Has received another investigational product within the 30 days prior to enrollment.

Design outcomes

Primary

MeasureTime frameDescription
Part B: t½ of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension1, 3, 5, 8, 12, and 24 hours post start of dosingt½ of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single listing. As specified in the protocol, t½ for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) were not included in this endpoint and have been reported separately in the record.
Part B: Cmax of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension1, 3, 5, 8, 12, and 24 hours post start of dosingCmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single concentration listing. As specified in the protocol, Cmax for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) were not included in this endpoint and have been reported separately in the record.
Part B: Tmax of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension1, 3, 5, 8, 12, and 24 hours post start of dosingTmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single listing. As specified in the protocol, Tmax for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) were not included in this endpoint and have been reported separately in the record.
Part A: Area Under the Concentration-time Curve From Time 0 to Time of Last Quantifiable Drug Concentration (AUC0-last) of Tedizolid Phosphate (Prodrug) After Single-dose IV Administration1, 1.5, 3, 6, 12 and 24 hours post start of dosingAUC0-last of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of pharmacokinetic (PK) outcomes in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, tedizolid phosphate AUC0-last for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol.
Part A: Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-inf) of Tedizolid Phosphate (Prodrug) After Single-dose IV Administration1, 1.5, 3, 6, 12 and 24 hours post start of dosingAUC0-inf of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK outcomes in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, tedizolid phosphate AUC0-inf for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol.
Part A: Maximum Concentration (Cmax) of Tedizolid Phosphate (Prodrug) After Single-dose IV Administration1, 1.5, 3, 6, 12 and 24 hours post start of dosingCmax of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK outcomes in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, tedizolid phosphate Cmax for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol.
Part A: Time to Reach Maximum Concentration (Tmax) of Tedizolid Phosphate (Prodrug) After Single-dose IV Administration1, 1.5, 3, 6, 12 and 24 hours post start of dosingTmax of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK outcomes in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, tedizolid phosphate Tmax for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol.
Part A: Apparent Terminal Half-life (t½) of Tedizolid Phosphate (Prodrug) After Single-dose IV Administration1, 1.5, 3, 6, 12 and 24 hours post start of dosingt½ of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK outcomes in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, tedizolid phosphate t½ for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol.
Part A: AUC0-last of Tedizolid Phosphate (Prodrug) After Multiple-dose IV AdministrationDay 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosingAUC0-last of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. As specified in the protocol, tedizolid phosphate AUC0-last for single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol. Participants in Group 2 Cohort 2 study arm did not meet the criteria for PK per protocol analysis population for this outcome and were excluded from this protocol-specified analysis.
Part A: AUC0-inf of Tedizolid Phosphate (Prodrug) After Multiple-dose IV AdministrationDay 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosingAUC0-inf of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. As specified in the protocol, tedizolid phosphate AUC0-inf for single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol. Participants in Group 2 Cohort 2 study arm did not meet the criteria for PK per protocol analysis population for this endpoint and were excluded from this protocol-specified analysis.
Part A: Cmax of Tedizolid Phosphate (Prodrug) After Multiple-dose IV AdministrationDay 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosingCmax of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. As specified in the protocol, tedizolid phosphate Cmax for single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol. Participants in Group 2 Cohort 2 study arm did not meet the criteria for PK per protocol analysis population for this outcome and were excluded from this protocol-specified analysis.
Part A: Tmax of Tedizolid Phosphate (Prodrug) After Multiple-dose IV AdministrationDay 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosingTmax of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. As specified in the protocol, tedizolid phosphate Tmax for single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol. Participants in Group 2 Cohort 2 study arm did not meet the criteria for PK per protocol analysis population for this outcome and were excluded from this protocol-specified analysis.
Part A: t½ of Tedizolid Phosphate (Prodrug) After Multiple-dose IV AdministrationDay 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosingt½ of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. As specified in the protocol, tedizolid phosphate t½ for single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol. Participants in Group 2 Cohort 2 study arm did not meet the criteria for PK per protocol analysis population for this outcome and were excluded from this protocol-specified analysis.
Part A: AUC0-24 of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate [AUC0-last]1, 1.5, 3, 6, 12 and 24 hours post start of dosingAUC0-last of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK endpoints in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, AUC0-last for tedizolid metabolite in multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) were not included in this endpoint and have been reported separately in the record.
Part A: AUC0-inf of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate1, 1.5, 3, 6, 12 and 24 hours post start of dosingAUC0-inf of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK endpoints in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, AUC0-inf for tedizolid metabolite in multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) were not included in this endpoint and have been reported separately in the record.
Part A: Cmax of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate1, 1.5, 3, 6, 12 and 24 hours post start of dosingCmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK endpoints in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, Cmax for tedizolid metabolite in multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) were not included in this endpoint and have been reported separately in the record.
Part A: Tmax of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate1, 1.5, 3, 6, 12 and 24 hours post start of dosingTmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK endpoints in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, Tmax for tedizolid metabolite in multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) were not included in this endpoint and have been reported separately in the record.
Part A: t½ of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate1, 1.5, 3, 6, 12 and 24 hours post start of dosingt½ of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK endpoints in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, t½ for tedizolid metabolite in multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) were not included in this endpoint and have been reported separately in the record.
Part A: AUC0-12 of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate [AUC0-last]Day 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosingAUC0-last of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single concentration listing. This was analyzed in the per protocol population consisting of the subset of participants who complied with the protocol sufficiently to ensure that these data would be likely to exhibit treatment effects, based on the underlying scientific model and had data available for this endpoint. As specified in the protocol, AUC0-last for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) were not included in this endpoint and have been reported separately in the record.
Part A: Cmax of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid PhosphateDay 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosingCmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single concentration listing. As specified in the protocol, Cmax for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) were not included in this endpoint and have been reported separately in the record.
Part A: Tmax of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid PhosphateDay 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosingTmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single listing. As specified in the protocol, Tmax for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) were not included in this endpoint and have been reported separately in the record.
Part A: AUC0-inf of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid PhosphateDay 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosingAUC0-inf of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach to be used in this noncompartmental analysis would allow data collected to generate single concentration listing. However, protocol-specified PK sampling did not characterize the terminal elimination phase; therefore, AUC0-inf of tedizolid metabolite could not be estimated for multiple dose study arms (Part A Group 2 Cohort 2 and Part A Group 3 Cohort 2). As specified in the protocol, AUC0-inf for tedizolid metabolite in single dose (Part A Group 1\[Cohorts 1 and 2\],Group 2 Cohort 1, Group 3 Cohort 1; Part B\[Groups 4, 5, 6\]) were not included in this endpoint and have been reported separately in the record.
Part A: t½ of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid PhosphateDay 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosingt½ of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach to be used in this noncompartmental analysis would allow data collected to generate single listing. However, protocol-specified PK sampling did not characterize the terminal elimination phase; therefore, t½ could not be estimated for multiple dose study arms (Part A Group 2 Cohort 2 and Part A Group 3 Cohort 2). As specified in the protocol, t½ for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) were not included in this endpoint and have been reported separately in the record.
Part B: Area Under the Concentration-time Curve From Time 0 to 24 Hours (AUC0-24) of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension [AUC0-last]1, 3, 5, 8, 12, and 24 hours post start of dosingAUC0-last of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single concentration listing. As specified in the protocol, AUC0-last for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) were not included in this endpoint and have been reported separately in the record.
Part B: AUC0-inf of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension1, 3, 5, 8, 12, and 24 hours post start of dosingAUC0-inf of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single concentration listing. As specified in the protocol, AUC0-inf for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) were not included in this endpoint and have been reported separately in the record.

Secondary

MeasureTime frameDescription
Number of Participants That Discontinued Study Treatment Due to an AEUp to approximately 3 daysAn AE was defined as any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants that discontinued study treatment due to an AE was reported for each arm.
Number of Participants With an Adverse Event (AE)Up to approximately 21 daysAn AE was defined as any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants experiencing an AE was reported for each arm.

Countries

Bulgaria, Colombia, Norway, United Kingdom, United States

Participant flow

Recruitment details

This study was conducted at 30 centers in 5 countries.

Participants by arm

ArmCount
Part A Group 1 Cohort 1: Single Dose IV Tedizolid Phosphate 28 Days to <6 Months
Pediatric participants 28 days to \<6 months of age received a single dose (SD) intravenous (IV) infusion of tedizolid phosphate according to body weight: 3 mg/kg for body weight \<10 kg or 2.5 mg/kg for body weight 10 to \<30 kg.
4
Part A Group 1 Cohort 2: Single Dose IV Tedizolid Phosphate 6 Months to <24 Months
Pediatric participants 6 months to \<24 months of age received an SD IV infusion of tedizolid phosphate according to body weight: 3 mg/kg for body weight \<10 kg or 2.5 mg/kg for body weight 10 to \<30 kg.
6
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 Days
Full term (FT) neonates from birth to \<28 days of age received an SD IV infusion of tedizolid phosphate according to body weight: 3 mg/kg for body weight \<10 kg or 2.5 mg/kg for body weight 10 to \<30 kg.
8
Part A Group 2 Cohort 2: Multiple Dose IV Tedizolid Phosphate (Full Term) Birth to <28 Days
FT neonates from birth to \<28 days of age received multiple dose (MD) IV infusions of tedizolid phosphate according to body weight: 3 mg/kg for body weight \<10 kg or 2.5 mg/kg for body weight 10 to \<30 kg, administered twice daily for 3 days.
4
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 Days
Preterm (PT) neonates from birth to \<28 days of age received an SD IV infusion of tedizolid phosphate according to body weight: 3 mg/kg for body weight \<10 kg or 2.5 mg/kg for body weight 10 to \<30 kg.
9
Part A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 Days
PT neonates from birth to \<28 days of age received MD IV infusions of tedizolid phosphate according to body weight: 3 mg/kg for body weight \<10 kg or 2.5 mg/kg for body weight 10 to \<30 kg, administered twice daily for 3 days.
4
Part B Group 4: Single Dose Oral Tedizolid Phosphate 28 Days to <24 Months
Pediatric participants 28 days to \<24 months of age received an SD oral suspension of tedizolid phosphate according to body weight: 3 mg/kg for body weight \<10 kg or 2.5 mg/kg for body weight 10 to \<30 kg.
4
Part B Group 5: Single Dose Oral Tedizolid Phosphate (Full Term) Birth to <28 Days
FT neonates from birth to \<28 days of age received an SD oral suspension of tedizolid phosphate according to body weight: 3 mg/kg for body weight \<10 kg or 2.5 mg/kg for body weight 10 to \<30 kg.
4
Part B Group 6: Single Dose Oral Tedizolid Phosphate (Preterm) Birth to <28 Days
PT neonates from birth to \<28 days of age received an SD oral suspension of tedizolid phosphate according to body weight: 3 mg/kg for body weight \<10 kg or 2.5 mg/kg for body weight 10 to \<30 kg.
4
Total47

Baseline characteristics

CharacteristicPart A Group 1 Cohort 1: Single Dose IV Tedizolid Phosphate 28 Days to <6 MonthsPart A Group 1 Cohort 2: Single Dose IV Tedizolid Phosphate 6 Months to <24 MonthsPart A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A Group 2 Cohort 2: Multiple Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysPart A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 DaysPart B Group 4: Single Dose Oral Tedizolid Phosphate 28 Days to <24 MonthsPart B Group 5: Single Dose Oral Tedizolid Phosphate (Full Term) Birth to <28 DaysPart B Group 6: Single Dose Oral Tedizolid Phosphate (Preterm) Birth to <28 DaysTotal
Age, Continuous51.3 Days
STANDARD_DEVIATION 9.9
420.7 Days
STANDARD_DEVIATION 167.1
8.3 Days
STANDARD_DEVIATION 9.4
11.8 Days
STANDARD_DEVIATION 11.3
9.9 Days
STANDARD_DEVIATION 7.9
2.0 Days
STANDARD_DEVIATION 1.2
289.0 Days
STANDARD_DEVIATION 165.5
13.0 Days
STANDARD_DEVIATION 11.7
6.5 Days
STANDARD_DEVIATION 6.4
88.8 Days
STANDARD_DEVIATION 165.7
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants7 Participants3 Participants3 Participants2 Participants0 Participants2 Participants3 Participants20 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants6 Participants1 Participants1 Participants5 Participants2 Participants4 Participants2 Participants1 Participants26 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants6 Participants2 Participants3 Participants2 Participants0 Participants2 Participants3 Participants19 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
3 Participants5 Participants2 Participants1 Participants6 Participants2 Participants4 Participants2 Participants1 Participants26 Participants
Sex: Female, Male
Female
2 Participants2 Participants5 Participants1 Participants3 Participants2 Participants2 Participants0 Participants1 Participants18 Participants
Sex: Female, Male
Male
2 Participants4 Participants3 Participants3 Participants6 Participants2 Participants2 Participants4 Participants3 Participants29 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
deaths
Total, all-cause mortality
0 / 40 / 60 / 80 / 40 / 90 / 40 / 40 / 40 / 4
other
Total, other adverse events
0 / 41 / 60 / 80 / 42 / 92 / 41 / 40 / 41 / 4
serious
Total, serious adverse events
1 / 40 / 60 / 80 / 40 / 90 / 40 / 40 / 40 / 4

Outcome results

Primary

Part A: Apparent Terminal Half-life (t½) of Tedizolid Phosphate (Prodrug) After Single-dose IV Administration

t½ of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK outcomes in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, tedizolid phosphate t½ for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol.

Time frame: 1, 1.5, 3, 6, 12 and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data would exhibit treatment effects, according to the scientific model and had data available for this outcome. Per protocol, Group 1 PK outcome analysis was done irrespective of age, across Cohorts 1 and 2 (28 days to \<24 months). t1/2 for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) are excluded and have been reported separately. Tedizolid phosphate PK analysis was not done in Part B, per protocol.

ArmMeasureValue (GEOMETRIC_MEAN)
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsPart A: Apparent Terminal Half-life (t½) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: Apparent Terminal Half-life (t½) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysPart A: Apparent Terminal Half-life (t½) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr
Primary

Part A: Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-inf) of Tedizolid Phosphate (Prodrug) After Single-dose IV Administration

AUC0-inf of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK outcomes in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, tedizolid phosphate AUC0-inf for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol.

Time frame: 1, 1.5, 3, 6, 12 and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data would exhibit treatment effects, according to the scientific model and had data available for this outcome. Per protocol, Group 1 PK outcome analysis was done irrespective of age, across Cohorts 1 and 2 (28 days to \<24 months). AUC0-inf for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) are excluded and have been reported separately. Tedizolid phosphate PK analysis was not done in Part B, per protocol.

ArmMeasureValue (GEOMETRIC_MEAN)
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsPart A: Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-inf) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr*μg/mL
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-inf) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr*μg/mL
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysPart A: Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-inf) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr*μg/mL
Primary

Part A: Area Under the Concentration-time Curve From Time 0 to Time of Last Quantifiable Drug Concentration (AUC0-last) of Tedizolid Phosphate (Prodrug) After Single-dose IV Administration

AUC0-last of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of pharmacokinetic (PK) outcomes in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, tedizolid phosphate AUC0-last for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol.

Time frame: 1, 1.5, 3, 6, 12 and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data would exhibit treatment effects, according to the scientific model and had data available for this outcome. Per protocol, Group 1 PK outcome analysis was done irrespective of age, across Cohorts 1 and 2 (28 days to \<24 months). AUC0-last for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) are excluded and have been reported separately. Tedizolid phosphate PK analysis was not done in Part B, per protocol.

ArmMeasureValue (GEOMETRIC_MEAN)
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsPart A: Area Under the Concentration-time Curve From Time 0 to Time of Last Quantifiable Drug Concentration (AUC0-last) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr*μg/mL
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: Area Under the Concentration-time Curve From Time 0 to Time of Last Quantifiable Drug Concentration (AUC0-last) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr*μg/mL
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysPart A: Area Under the Concentration-time Curve From Time 0 to Time of Last Quantifiable Drug Concentration (AUC0-last) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr*μg/mL
Primary

Part A: AUC0-12 of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate [AUC0-last]

AUC0-last of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single concentration listing. This was analyzed in the per protocol population consisting of the subset of participants who complied with the protocol sufficiently to ensure that these data would be likely to exhibit treatment effects, based on the underlying scientific model and had data available for this endpoint. As specified in the protocol, AUC0-last for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) were not included in this endpoint and have been reported separately in the record.

Time frame: Day 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosing

Population: The subset of participants who complied with protocol to ensure that data exhibits treatment effects, according to scientific model and had data available for this outcome. AUC0-last for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) are excluded and have been reported separately.

ArmMeasureValue (NUMBER)
Part A Group 2 Cohort 2: Multiple Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: AUC0-12 of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate [AUC0-last]10.5 hr*μg/mL
Part A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 DaysPart A: AUC0-12 of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate [AUC0-last]7.48 hr*μg/mL
Primary

Part A: AUC0-24 of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate [AUC0-last]

AUC0-last of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK endpoints in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, AUC0-last for tedizolid metabolite in multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) were not included in this endpoint and have been reported separately in the record.

Time frame: 1, 1.5, 3, 6, 12 and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data would exhibit treatment effects, according to the scientific model and had data available for this outcome. Per protocol, Group 1 PK outcome analysis was done irrespective of age, across Cohorts 1 and 2 (28 days to \<24 months). AUC0-last for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) are excluded and have been reported separately.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsPart A: AUC0-24 of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate [AUC0-last]13.6 hr*μg/mLGeometric Coefficient of Variation 42.4
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: AUC0-24 of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate [AUC0-last]8.23 hr*μg/mLGeometric Coefficient of Variation 115.9
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysPart A: AUC0-24 of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate [AUC0-last]15.6 hr*μg/mLGeometric Coefficient of Variation 17.6
Primary

Part A: AUC0-inf of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate

AUC0-inf of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach to be used in this noncompartmental analysis would allow data collected to generate single concentration listing. However, protocol-specified PK sampling did not characterize the terminal elimination phase; therefore, AUC0-inf of tedizolid metabolite could not be estimated for multiple dose study arms (Part A Group 2 Cohort 2 and Part A Group 3 Cohort 2). As specified in the protocol, AUC0-inf for tedizolid metabolite in single dose (Part A Group 1\[Cohorts 1 and 2\],Group 2 Cohort 1, Group 3 Cohort 1; Part B\[Groups 4, 5, 6\]) were not included in this endpoint and have been reported separately in the record.

Time frame: Day 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosing

Population: The subset of participants who complied with protocol to ensure that data exhibits treatment effects, according to the scientific model. Protocol specified PK sampling didn't characterize terminal elimination phase; thus, this couldn't be estimated for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2). AUC0-inf for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) are excluded and reported separately.

Primary

Part A: AUC0-inf of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate

AUC0-inf of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK endpoints in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, AUC0-inf for tedizolid metabolite in multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) were not included in this endpoint and have been reported separately in the record.

Time frame: 1, 1.5, 3, 6, 12 and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data would exhibit treatment effects, according to the scientific model and had data available for this outcome. Per protocol, Group 1 PK outcome analysis was done irrespective of age, across Cohorts 1 and 2 (28 days to \<24 months). AUC0-inf for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) are excluded and have been reported separately.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsPart A: AUC0-inf of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate14.3 hr*μg/mLGeometric Coefficient of Variation 40.4
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: AUC0-inf of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate9.21 hr*μg/mLGeometric Coefficient of Variation 128.2
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysPart A: AUC0-inf of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate17.8 hr*μg/mLGeometric Coefficient of Variation 20.9
Primary

Part A: AUC0-inf of Tedizolid Phosphate (Prodrug) After Multiple-dose IV Administration

AUC0-inf of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. As specified in the protocol, tedizolid phosphate AUC0-inf for single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol. Participants in Group 2 Cohort 2 study arm did not meet the criteria for PK per protocol analysis population for this endpoint and were excluded from this protocol-specified analysis.

Time frame: Day 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data exhibits treatment effects and had data available for this outcome. AUC0-inf for single dose (Part A Group 1 \[Cohorts 1 \& 2\], Group 2 Cohort 1, Group 3 Cohort 1) are excluded and have been reported separately. Tedizolid phosphate PK analysis was not done in Part B, per protocol. Group 2 Cohort 2 participants didn't meet the per protocol analysis population criteria and were excluded from this analysis.

ArmMeasureValue (GEOMETRIC_MEAN)
Part A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 DaysPart A: AUC0-inf of Tedizolid Phosphate (Prodrug) After Multiple-dose IV AdministrationNA hr*μg/mL
Primary

Part A: AUC0-last of Tedizolid Phosphate (Prodrug) After Multiple-dose IV Administration

AUC0-last of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. As specified in the protocol, tedizolid phosphate AUC0-last for single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol. Participants in Group 2 Cohort 2 study arm did not meet the criteria for PK per protocol analysis population for this outcome and were excluded from this protocol-specified analysis.

Time frame: Day 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data exhibits treatment effects and had data available for this outcome. AUC0-last for single dose (Part A Group 1 \[Cohorts 1 \& 2\], Group 2 Cohort 1, Group 3 Cohort 1) are excluded and have been reported separately. Tedizolid phosphate PK analysis was not done in Part B, per protocol. Group 2 Cohort 2 participants didn't meet the per protocol analysis population criteria and were excluded from this analysis.

ArmMeasureValue (GEOMETRIC_MEAN)
Part A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 DaysPart A: AUC0-last of Tedizolid Phosphate (Prodrug) After Multiple-dose IV AdministrationNA hr*μg/mL
Primary

Part A: Cmax of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate

Cmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single concentration listing. As specified in the protocol, Cmax for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) were not included in this endpoint and have been reported separately in the record.

Time frame: Day 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosing

Population: The subset of participants who complied with protocol to ensure that data exhibits treatment effects, according to scientific model and had data available for this outcome. Cmax for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) are excluded and have been reported separately.

ArmMeasureValue (NUMBER)
Part A Group 2 Cohort 2: Multiple Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: Cmax of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate1.82 μg/mL
Part A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 DaysPart A: Cmax of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate1.69 μg/mL
Primary

Part A: Cmax of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate

Cmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK endpoints in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, Cmax for tedizolid metabolite in multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) were not included in this endpoint and have been reported separately in the record.

Time frame: 1, 1.5, 3, 6, 12 and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data would exhibit treatment effects, according to the scientific model and had data available for this outcome. Per protocol, Group 1 PK outcome analysis was done irrespective of age, across Cohorts 1 and 2 (28 days to \<24 months). Cmax for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) are excluded and have been reported separately.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsPart A: Cmax of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate2.19 μg/mLGeometric Coefficient of Variation 51
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: Cmax of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate0.962 μg/mLGeometric Coefficient of Variation 71.9
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysPart A: Cmax of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate1.35 μg/mLGeometric Coefficient of Variation 44.5
Primary

Part A: Cmax of Tedizolid Phosphate (Prodrug) After Multiple-dose IV Administration

Cmax of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. As specified in the protocol, tedizolid phosphate Cmax for single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol. Participants in Group 2 Cohort 2 study arm did not meet the criteria for PK per protocol analysis population for this outcome and were excluded from this protocol-specified analysis.

Time frame: Day 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data exhibits treatment effects and had data available for this outcome. Cmax for single dose (Part A Group 1 \[Cohorts 1 \& 2\], Group 2 Cohort 1, Group 3 Cohort 1) are excluded and have been reported separately. Tedizolid phosphate PK analysis was not done in Part B, per protocol. Group 2 Cohort 2 participants didn't meet the per protocol analysis population criteria and were excluded from this analysis.

ArmMeasureValue (GEOMETRIC_MEAN)
Part A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 DaysPart A: Cmax of Tedizolid Phosphate (Prodrug) After Multiple-dose IV AdministrationNA μg/mL
Primary

Part A: Maximum Concentration (Cmax) of Tedizolid Phosphate (Prodrug) After Single-dose IV Administration

Cmax of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK outcomes in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, tedizolid phosphate Cmax for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol.

Time frame: 1, 1.5, 3, 6, 12 and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data would exhibit treatment effects, according to the scientific model and had data available for this outcome. Per protocol, Group 1 PK outcome analysis was done irrespective of age, across Cohorts 1 and 2 (28 days to \<24 months). Cmax for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) are excluded and have been reported separately. Tedizolid phosphate PK analysis was not done in Part B, per protocol.

ArmMeasureValue (GEOMETRIC_MEAN)
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsPart A: Maximum Concentration (Cmax) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA μg/mL
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: Maximum Concentration (Cmax) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA μg/mL
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysPart A: Maximum Concentration (Cmax) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA μg/mL
Primary

Part A: t½ of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate

t½ of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach to be used in this noncompartmental analysis would allow data collected to generate single listing. However, protocol-specified PK sampling did not characterize the terminal elimination phase; therefore, t½ could not be estimated for multiple dose study arms (Part A Group 2 Cohort 2 and Part A Group 3 Cohort 2). As specified in the protocol, t½ for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) were not included in this endpoint and have been reported separately in the record.

Time frame: Day 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosing

Population: The subset of participants who complied with protocol to ensure that data exhibits treatment effects, according to the scientific model. Protocol specified PK sampling didn't characterize terminal elimination phase; thus, this couldn't be estimated for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2). t1/2 for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) are excluded and reported separately.

Primary

Part A: t½ of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate

t½ of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK endpoints in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, t½ for tedizolid metabolite in multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) were not included in this endpoint and have been reported separately in the record.

Time frame: 1, 1.5, 3, 6, 12 and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data would exhibit treatment effects, according to the scientific model and had data available for this outcome. Per protocol, Group 1 PK outcome analysis was done irrespective of age, across Cohorts 1 and 2 (28 days to \<24 months). t1/2 for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) are excluded and have been reported separately.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsPart A: t½ of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate4.17 hrGeometric Coefficient of Variation 47.7
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: t½ of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate6.63 hrGeometric Coefficient of Variation 38
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysPart A: t½ of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate7.08 hrGeometric Coefficient of Variation 41.2
Primary

Part A: t½ of Tedizolid Phosphate (Prodrug) After Multiple-dose IV Administration

t½ of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. As specified in the protocol, tedizolid phosphate t½ for single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol. Participants in Group 2 Cohort 2 study arm did not meet the criteria for PK per protocol analysis population for this outcome and were excluded from this protocol-specified analysis.

Time frame: Day 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data exhibits treatment effects and had data available for this outcome. t1/2 for single dose (Part A Group 1 \[Cohorts 1 \& 2\], Group 2 Cohort 1, Group 3 Cohort 1) are excluded and have been reported separately. Tedizolid phosphate PK analysis was not done in Part B, per protocol. Group 2 Cohort 2 participants didn't meet the per protocol analysis population criteria and were excluded from this analysis.

ArmMeasureValue (GEOMETRIC_MEAN)
Part A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 DaysPart A: t½ of Tedizolid Phosphate (Prodrug) After Multiple-dose IV AdministrationNA hr
Primary

Part A: Time to Reach Maximum Concentration (Tmax) of Tedizolid Phosphate (Prodrug) After Single-dose IV Administration

Tmax of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK outcomes in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, tedizolid phosphate Tmax for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol.

Time frame: 1, 1.5, 3, 6, 12 and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data would exhibit treatment effects, according to the scientific model and had data available for this outcome. Per protocol, Group 1 PK outcome analysis was done irrespective of age, across Cohorts 1 and 2 (28 days to \<24 months). Tmax for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) are excluded and have been reported separately. Tedizolid phosphate PK analysis was not done in Part B, per protocol.

ArmMeasureValue (MEDIAN)
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsPart A: Time to Reach Maximum Concentration (Tmax) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: Time to Reach Maximum Concentration (Tmax) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysPart A: Time to Reach Maximum Concentration (Tmax) of Tedizolid Phosphate (Prodrug) After Single-dose IV AdministrationNA hr
Primary

Part A: Tmax of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate

Tmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single listing. As specified in the protocol, Tmax for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) were not included in this endpoint and have been reported separately in the record.

Time frame: Day 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosing

Population: The subset of participants who complied with protocol to ensure that data exhibits treatment effects, according to scientific model and had data available for this outcome. Tmax for tedizolid metabolite in single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1; Part B \[Groups 4, 5, 6\]) are excluded and have been reported separately.

ArmMeasureValue (NUMBER)
Part A Group 2 Cohort 2: Multiple Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: Tmax of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate1.60 hr
Part A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 DaysPart A: Tmax of Tedizolid (Active Metabolite) After Multiple-dose IV Administration of Tedizolid Phosphate1.08 hr
Primary

Part A: Tmax of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate

Tmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. Protocol specified analysis of PK endpoints in Group 1 was done irrespective of age (28 days to \<24 months, across ages in Cohorts 1 and 2). As specified in the protocol, Tmax for tedizolid metabolite in multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) were not included in this endpoint and have been reported separately in the record.

Time frame: 1, 1.5, 3, 6, 12 and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data would exhibit treatment effects, according to the scientific model and had data available for this outcome. Per protocol, Group 1 PK outcome analysis was done irrespective of age, across Cohorts 1 and 2 (28 days to \<24 months). Tmax for multiple dose (Part A Group 2 Cohort 2, Group 3 Cohort 2) and Part B (Groups 4, 5, 6) are excluded and have been reported separately.

ArmMeasureValue (MEDIAN)
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsPart A: Tmax of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate1.33 hr
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysPart A: Tmax of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate1.41 hr
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysPart A: Tmax of Tedizolid (Active Metabolite) After Single-dose IV Administration of Tedizolid Phosphate1.50 hr
Primary

Part A: Tmax of Tedizolid Phosphate (Prodrug) After Multiple-dose IV Administration

Tmax of tedizolid phosphate was quantified in participants receiving tedizolid phosphate. As specified in the protocol, tedizolid phosphate Tmax for single dose (Part A Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 3 Cohort 1) were not included in this outcome and have been reported separately in the record. Tedizolid phosphate PK analysis was not planned or conducted in Part B (Groups 4, 5, 6), per protocol. Participants in Group 2 Cohort 2 study arm did not meet the criteria for PK per protocol analysis population for this outcome and were excluded from this protocol-specified analysis.

Time frame: Day 3: pre-dose, 1, 1.5, 3, 6 and 12 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data exhibits treatment effects and had data available for this outcome. Tmax for single dose (Part A Group 1 \[Cohorts 1 \& 2\], Group 2 Cohort 1, Group 3 Cohort 1) are excluded and have been reported separately. Tedizolid phosphate PK analysis was not done in Part B, per protocol. Group 2 Cohort 2 participants didn't meet the per protocol analysis population criteria and were excluded from this analysis.

ArmMeasureValue (MEDIAN)
Part A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 DaysPart A: Tmax of Tedizolid Phosphate (Prodrug) After Multiple-dose IV AdministrationNA hr
Primary

Part B: Area Under the Concentration-time Curve From Time 0 to 24 Hours (AUC0-24) of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension [AUC0-last]

AUC0-last of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single concentration listing. As specified in the protocol, AUC0-last for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) were not included in this endpoint and have been reported separately in the record.

Time frame: 1, 3, 5, 8, 12, and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data exhibits treatment effects, according to the scientific model and had data available for this outcome. AUC0-last for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) are excluded and have been reported separately.

ArmMeasureValue (NUMBER)
Part B Group 4: Single Dose Oral Tedizolid Phosphate 28 Days to <24 MonthsPart B: Area Under the Concentration-time Curve From Time 0 to 24 Hours (AUC0-24) of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension [AUC0-last]7.92 hr*μg/mL
Part B Group 5: Single Dose Oral Tedizolid Phosphate (Full Term) Birth to <28 DaysPart B: Area Under the Concentration-time Curve From Time 0 to 24 Hours (AUC0-24) of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension [AUC0-last]9.25 hr*μg/mL
Part B Group 6: Single Dose Oral Tedizolid Phosphate (Preterm) Birth to <28 DaysPart B: Area Under the Concentration-time Curve From Time 0 to 24 Hours (AUC0-24) of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension [AUC0-last]14.9 hr*μg/mL
Primary

Part B: AUC0-inf of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension

AUC0-inf of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single concentration listing. As specified in the protocol, AUC0-inf for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) were not included in this endpoint and have been reported separately in the record.

Time frame: 1, 3, 5, 8, 12, and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data exhibits treatment effects, according to the scientific model and had data available for this outcome. AUC0-inf for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) are excluded and have been reported separately.

ArmMeasureValue (NUMBER)
Part B Group 4: Single Dose Oral Tedizolid Phosphate 28 Days to <24 MonthsPart B: AUC0-inf of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension8.36 hr*μg/mL
Part B Group 5: Single Dose Oral Tedizolid Phosphate (Full Term) Birth to <28 DaysPart B: AUC0-inf of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension9.44 hr*μg/mL
Part B Group 6: Single Dose Oral Tedizolid Phosphate (Preterm) Birth to <28 DaysPart B: AUC0-inf of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension22.1 hr*μg/mL
Primary

Part B: Cmax of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension

Cmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single concentration listing. As specified in the protocol, Cmax for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) were not included in this endpoint and have been reported separately in the record.

Time frame: 1, 3, 5, 8, 12, and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data exhibits treatment effects, according to the scientific model and had data available for this outcome. Cmax for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) are excluded and have been reported separately.

ArmMeasureValue (NUMBER)
Part B Group 4: Single Dose Oral Tedizolid Phosphate 28 Days to <24 MonthsPart B: Cmax of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension1.32 μg/mL
Part B Group 5: Single Dose Oral Tedizolid Phosphate (Full Term) Birth to <28 DaysPart B: Cmax of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension0.899 μg/mL
Part B Group 6: Single Dose Oral Tedizolid Phosphate (Preterm) Birth to <28 DaysPart B: Cmax of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension1.22 μg/mL
Primary

Part B: t½ of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension

t½ of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single listing. As specified in the protocol, t½ for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) were not included in this endpoint and have been reported separately in the record.

Time frame: 1, 3, 5, 8, 12, and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data exhibits treatment effects, according to the scientific model and had data available for this outcome. t1/2 for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) are excluded and have been reported separately.

ArmMeasureValue (NUMBER)
Part B Group 4: Single Dose Oral Tedizolid Phosphate 28 Days to <24 MonthsPart B: t½ of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension5.73 hr
Part B Group 5: Single Dose Oral Tedizolid Phosphate (Full Term) Birth to <28 DaysPart B: t½ of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension3.82 hr
Part B Group 6: Single Dose Oral Tedizolid Phosphate (Preterm) Birth to <28 DaysPart B: t½ of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension13.4 hr
Primary

Part B: Tmax of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension

Tmax of tedizolid (metabolite) was quantified in participants receiving tedizolid phosphate. The per protocol statistical approach used in this noncompartmental analysis allowed data collected to generate single listing. As specified in the protocol, Tmax for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) were not included in this endpoint and have been reported separately in the record.

Time frame: 1, 3, 5, 8, 12, and 24 hours post start of dosing

Population: The subset of participants who complied with the protocol to ensure that data exhibits treatment effects, according to the scientific model and had data available for this outcome. Tmax for tedizolid metabolite in Part A (Group 1 \[Cohorts 1 and 2\], Group 2 Cohort 1, Group 2 Cohort 2, Group 3 Cohort 1, Group 3 Cohort 2) are excluded and have been reported separately.

ArmMeasureValue (NUMBER)
Part B Group 4: Single Dose Oral Tedizolid Phosphate 28 Days to <24 MonthsPart B: Tmax of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension1 hr
Part B Group 5: Single Dose Oral Tedizolid Phosphate (Full Term) Birth to <28 DaysPart B: Tmax of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension3.03 hr
Part B Group 6: Single Dose Oral Tedizolid Phosphate (Preterm) Birth to <28 DaysPart B: Tmax of Tedizolid (Active Metabolite) After Single-dose Administration of Tedizolid Phosphate Oral Suspension8 hr
Secondary

Number of Participants That Discontinued Study Treatment Due to an AE

An AE was defined as any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants that discontinued study treatment due to an AE was reported for each arm.

Time frame: Up to approximately 3 days

Population: All participants who received at least one dose of the investigational drug were assessed.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsNumber of Participants That Discontinued Study Treatment Due to an AE0 Participants
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysNumber of Participants That Discontinued Study Treatment Due to an AE0 Participants
Part A Group 2 Cohort 2: Multiple Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysNumber of Participants That Discontinued Study Treatment Due to an AE0 Participants
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysNumber of Participants That Discontinued Study Treatment Due to an AE0 Participants
Part A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 DaysNumber of Participants That Discontinued Study Treatment Due to an AE0 Participants
Part B Group 4: Single Dose Oral Tedizolid Phosphate 28 Days to <24 MonthsNumber of Participants That Discontinued Study Treatment Due to an AE0 Participants
Part B Group 5: Single Dose Oral Tedizolid Phosphate (Full Term) Birth to <28 DaysNumber of Participants That Discontinued Study Treatment Due to an AE0 Participants
Part B Group 6: Single Dose Oral Tedizolid Phosphate (Preterm) Birth to <28 DaysNumber of Participants That Discontinued Study Treatment Due to an AE0 Participants
Part B Group 6: Single Dose Oral Tedizolid Phosphate (Preterm) Birth to <28 DaysNumber of Participants That Discontinued Study Treatment Due to an AE0 Participants
Secondary

Number of Participants With an Adverse Event (AE)

An AE was defined as any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants experiencing an AE was reported for each arm.

Time frame: Up to approximately 21 days

Population: All participants who received at least one dose of the investigational drug were assessed.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Group 1 Cohorts 1+2:SD IV Tedizolid Phosphate 28days-<24monthsNumber of Participants With an Adverse Event (AE)1 Participants
Part A Group 2 Cohort 1: Single Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysNumber of Participants With an Adverse Event (AE)1 Participants
Part A Group 2 Cohort 2: Multiple Dose IV Tedizolid Phosphate (Full Term) Birth to <28 DaysNumber of Participants With an Adverse Event (AE)0 Participants
Part A Group 3 Cohort 1: Single Dose IV Tedizolid Phosphate (Preterm) Birth to <28 DaysNumber of Participants With an Adverse Event (AE)0 Participants
Part A Group 3 Cohort 2: Multiple Dose IV Tedizolid Phosphate IV (Preterm) Birth to <28 DaysNumber of Participants With an Adverse Event (AE)2 Participants
Part B Group 4: Single Dose Oral Tedizolid Phosphate 28 Days to <24 MonthsNumber of Participants With an Adverse Event (AE)2 Participants
Part B Group 5: Single Dose Oral Tedizolid Phosphate (Full Term) Birth to <28 DaysNumber of Participants With an Adverse Event (AE)1 Participants
Part B Group 6: Single Dose Oral Tedizolid Phosphate (Preterm) Birth to <28 DaysNumber of Participants With an Adverse Event (AE)0 Participants
Part B Group 6: Single Dose Oral Tedizolid Phosphate (Preterm) Birth to <28 DaysNumber of Participants With an Adverse Event (AE)1 Participants

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