A Study of Oral and Intravenous (IV) Tedizolid Phosphate in Hospitalized Participants, Ages 2 to <12 Years, With Confirmed or Suspected Bacterial Infection (MK-1986-013)

NCT02750761 | Completed Phase 1 Results FDA Drug

• 4 other identifiers: 1986-013TR701-1202015-004595-29MK-1986-013
• Study Type: interventional
• Target: 32
• Locations: 0 countries
• Sites: N/A

Brief Summary

This is a study to assess the pharmacokinetics (PK) of tedizolid phosphate and its active metabolite, tedizolid, and the safety of tedizolid phosphate following administration of a single IV (Part A) or oral suspension (Part B) administration to hospitalized participants ages 6 to \<12 years (Groups 1 and 3, respectively), and 2 to \<6 years (Groups 2 and 4, respectively).

Conditions

Gram-Positive Bacterial Infections

Outcome Measures

Primary Outcomes (15)

• Maximum Observed Drug Concentration in Plasma (Cmax) of Tedizolid Phosphate (Prodrug)

  Cmax of tedizolid phosphate in participants ages 6 to \<12 years (Group 1) and 2 to \<6 years (Group 2). Pharmacokinetic sampling occurred at the following time points: Group 1 (6 to \<12 years): Day 1 immediately after infusion and 1.5, 2, 3, 4, 6, 12, and 24 hours; Group 2 (IV): Day 1 immediately after infusion and 3, 6, 12, 24 and 48 hours; Group 3 (6 to \<12 years): Day 1 at 1, 2, 3, 4, 6, 8, 12, and 24 hours after oral dose; Group 4 (2 to \<6 years): Day 1 at 3, 6, 9, 12, 24 and 48 hours after oral dose.

  IV: immediately after the end of the infusion, and various time points up to 48 hours after the start of infusion as described above. Oral: at various time points up to 48 hours after the dose as described above.

• Time to Reach Peak Plasma Concentration (Tmax) of Tedizolid Phosphate (Prodrug)

  Time to reach peak plasma concentration (Tmax) of tedizolid phosphate in participants ages 6 to \<12 years (Group 1) and 2 to \<6 years (Group 2). Tedizolid phosphate concentrations were below the lower limit of quantification in Group 3 and Group 4. Pharmacokinetic sampling occurred at the following time points: Group 1 (6 to \<12 years): Day 1 immediately after infusion and 1.5, 2, 3, 4, 6, 12, and 24 hours; Group 2 (IV): Day 1 immediately after infusion and 3, 6, 12, 24 and 48 hours; Group 3 (6 to \<12 years): Day 1 at 1, 2, 3, 4, 6, 8, 12, and 24 hours after oral dose; Group 4 (2 to \<6 years): Day 1 at 3, 6, 9, 12, 24 and 48 hours after oral dose.

  IV: immediately after the end of the infusion, and various time points up to 48 hours after the start of infusion as described above. Oral: at various time points up to 48 hours after the dose as described above.

• Area Under the Plasma Concentration Time Curve (AUC) of Tedizolid Phosphate (Prodrug) From Time Zero to Last Detectable Measurement

  Area under the plasma concentration time curve (AUC) of tedizolid phosphate from time zero to last detectable measurement following administration of IV or oral dose. Pharmacokinetic sampling occurred at the following time points: Group 1 (6 to \<12 years): Day 1 immediately after infusion and 1.5, 2, 3, 4, 6, 12, and 24 hours; Group 2 (IV): Day 1 immediately after infusion and 3, 6, 12, 24 and 48 hours; Group 3 (6 to \<12 years): Day 1 at 1, 2, 3, 4, 6, 8, 12, and 24 hours after oral dose; Group 4 (2 to \<6 years): Day 1 at 3, 6, 9, 12, 24 and 48 hours after oral dose.

  IV: immediately after the end of the infusion, and various time points up to 48 hours after the start of infusion as described above. Oral: at various time points up to 48 hours after the dose as described above.

• Area Under the Plasma Concentration Time Curve (AUC) of Tedizolid Phosphate (Prodrug) From Time Zero to Infinity

  Area under the plasma concentration time curve (AUC) of tedizolid phosphate from time zero to infinity following administration of IV or oral dose. Pharmacokinetic sampling occurred at the following time points: Group 1 (6 to \<12 years): Day 1 immediately after infusion and 1.5, 2, 3, 4, 6, 12, and 24 hours; Group 2 (IV): Day 1 immediately after infusion and 3, 6, 12, 24 and 48 hours; Group 3 (6 to \<12 years): Day 1 at 1, 2, 3, 4, 6, 8, 12, and 24 hours after oral dose; Group 4 (2 to \<6 years): Day 1 at 3, 6, 9, 12, 24 and 48 hours after oral dose.

  IV: immediately after the end of the infusion, and various time points up to 48 hours after the start of infusion as described above. Oral: at various time points up to 48 hours after the dose as described above.

• Terminal Elimination Half-life (T1/2) of Tedizolid Phosphate (Prodrug)

  Terminal elimination half-life (T1/2) of tedizolid phosphate following administration of IV or oral dose. Pharmacokinetic sampling occurred at the following time points: Group 1 (6 to \<12 years): Day 1 immediately after infusion and 1.5, 2, 3, 4, 6, 12, and 24 hours; Group 2 (IV): Day 1 immediately after infusion and 3, 6, 12, 24 and 48 hours; Group 3 (6 to \<12 years): Day 1 at 1, 2, 3, 4, 6, 8, 12, and 24 hours after oral dose; Group 4 (2 to \<6 years): Day 1 at 3, 6, 9, 12, 24 and 48 hours after oral dose.

  IV: immediately after the end of the infusion, and various time points up to 48 hours after the start of infusion as described above. Oral: at various time points up to 48 hours after the dose as described above.

• Clearance (CL) of Tedizolid Phosphate (Prodrug) in Participants Who Received Tedizolid Phosphate Intravenously (IV)

  CL of IV tedizolid phosphate in participants ages 6 to \<12 years (Group 1) and 2 to \<6 years (Group 2).

  Group 1 (6 to <12 years): Day 1 immediately after infusion and at 1.5, 2, 3, 4, 6, 12, and 24 hours. Group 2 (2 to <6 years): Day 1 immediately after infusion and at 3, 6, 12, 24 and 48 hours.

• Clearance (CL/F) of Tedizolid Phosphate in Participants Who Received Oral Tedizolid Phosphate (Prodrug)

  CL/F of oral suspension tedizolid phosphate and its active metabolite, tedizolid, in participants ages 6 to \<12 years (Group 3) and 2 to \<6 years (Groups 4).

  Group 3 (6 to <12 years): at 1, 2, 3, 4, 6, 8, 12, and 24 hours after the dose; Group 4 (2 to <6 years): at 3, 6, 9, 12, 24 and 48 hours after the dose

• Maximum Observed Drug Concentration in Plasma (Cmax) of Tedizolid (the Active Metabolite)

  Maximum observed drug concentration in plasma (Cmax) of tedizolid (active metabolite) following administration of IV or oral dose. Pharmacokinetic sampling occurred at the following time points: Group 1 (6 to \<12 years): Day 1 immediately after infusion and 1.5, 2, 3, 4, 6, 12, and 24 hours; Group 2 (IV): Day 1 immediately after infusion and 3, 6, 12, 24 and 48 hours; Group 3 (6 to \<12 years): Day 1 at 1, 2, 3, 4, 6, 8, 12, and 24 hours after oral dose; Group 4 (2 to \<6 years): Day 1 at 3, 6, 9, 12, 24 and 48 hours after oral dose.

  IV: immediately after the end of the infusion, and various time points up to 48 hours after the start of infusion as described above. Oral: at various time points up to 48 hours after the dose as described above.

• Time to Reach Peak Plasma Concentration (Tmax) of Tedizolid (the Active Metabolite)

  Time to reach peak plasma concentration (Tmax) of tedizolid (active metabolite) following administration of IV or oral dose. Pharmacokinetic sampling occurred at the following time points: Group 1 (6 to \<12 years): Day 1 immediately after infusion and 1.5, 2, 3, 4, 6, 12, and 24 hours; Group 2 (IV): Day 1 immediately after infusion and 3, 6, 12, 24 and 48 hours; Group 3 (6 to \<12 years): Day 1 at 1, 2, 3, 4, 6, 8, 12, and 24 hours after oral dose; Group 4 (2 to \<6 years): Day 1 at 3, 6, 9, 12, 24 and 48 hours after oral dose.

  IV: immediately after the end of the infusion, and various time points up to 48 hours after the start of infusion as described above. Oral: at various time points up to 48 hours after the dose as described above.

• Area Under the Plasma Concentration Time Curve (AUC) of Tedizolid (Active Metabolite) From Time Zero to Last Detectable Measurement

  Area under the plasma concentration time curve (AUC) of tedizolid (active metabolite) from time zero to last detectable measurement following administration of IV or oral dose. Pharmacokinetic sampling occurred at the following time points: Group 1 (6 to \<12 years): Day 1 immediately after infusion and 1.5, 2, 3, 4, 6, 12, and 24 hours; Group 2 (IV): Day 1 immediately after infusion and 3, 6, 12, 24 and 48 hours; Group 3 (6 to \<12 years): Day 1 at 1, 2, 3, 4, 6, 8, 12, and 24 hours after oral dose; Group 4 (2 to \<6 years): Day 1 at 3, 6, 9, 12, 24 and 48 hours after oral dose.

  IV: immediately after the end of the infusion, and various time points up to 48 hours after the start of infusion as described above. Oral: at various time points up to 48 hours after the dose as described above.

• Area Under the Plasma Concentration Time Curve (AUC) of Tedizolid (Active Metabolite) From Time Zero to Infinity

  Area under the plasma concentration time curve (AUC) of tedizolid (active metabolite) from time zero to infinity following administration of IV or oral dose. Pharmacokinetic sampling occurred at the following time points: Group 1 (6 to \<12 years): Day 1 immediately after infusion and 1.5, 2, 3, 4, 6, 12, and 24 hours; Group 2 (IV): Day 1 immediately after infusion and 3, 6, 12, 24 and 48 hours; Group 3 (6 to \<12 years): Day 1 at 1, 2, 3, 4, 6, 8, 12, and 24 hours after oral dose; Group 4 (2 to \<6 years): Day 1 at 3, 6, 9, 12, 24 and 48 hours after oral dose.

  IV: immediately after the end of the infusion, and various time points up to 48 hours after the start of infusion as described above. Oral: at various time points up to 48 hours after the dose as described above.

• Terminal Elimination Half-life (T1/2) of Tedizolid (Active Metabolite)

  Terminal elimination half-life (T1/2) of tedizolid (active metabolite) following administration of IV or oral dose. Pharmacokinetic sampling occurred at the following time points: Group 1 (6 to \<12 years): Day 1 immediately after infusion and 1.5, 2, 3, 4, 6, 12, and 24 hours; Group 2 (IV): Day 1 immediately after infusion and 3, 6, 12, 24 and 48 hours; Group 3 (6 to \<12 years): Day 1 at 1, 2, 3, 4, 6, 8, 12, and 24 hours after oral dose; Group 4 (2 to \<6 years): Day 1 at 3, 6, 9, 12, 24 and 48 hours after oral dose.

  IV: immediately after the end of the infusion, and various time points up to 48 hours after the start of infusion as described above. Oral: at various time points up to 48 hours after the dose as described above.

• Clearance (CL) of Tedizolid (Active Metabolite) in Participants Who Received Tedizolid Phosphate Intravenously (IV)

  CL of IV tedizolid phosphate and its active metabolite, tedizolid, in participants ages 6 to \<12 years (Group 1) and 2 to \<6 years (Group 2).

  Group 1 (6 to <12 years): Day 1 immediately after infusion and at 1.5, 2, 3, 4, 6, 12, and 24 hours. Group 2 (2 to <6 years): Day 1 immediately after infusion and at 3, 6, 12, 24 and 48 hours.

• Clearance (CL/F) of Tedizolid (Active Metabolite) in Participants Who Received Oral Tedizolid Phosphate

  CL/F of tedizolid, in participants ages 6 to \<12 years (Group 3) and 2 to \<6 years (Groups 4).

  Group 3 (6 to <12 years): at 1, 2, 3, 4, 6, 8, 12, and 24 hours after the dose; Group 4 (2 to <6 years): at 3, 6, 9, 12, 24 and 48 hours after the dose

• Dose Normalized Area Under the Plasma Concentration Time Curve (AUC) of Tedizolid (Active Metabolite) From Time Zero to Infinity

  The area under the plasma concentration time curve (AUC) of tedizolid (active metabolite) from time zero to infinity following administration of IV or oral dose, normalized to dosage, was calculated. Per protocol, this outcome used pooled groups as follows: The IV Group pooled Groups 1 and 2, who received tedizolid phosphate via intravenous (IV) administration; the Oral Group pooled groups 3 and 4, who received tedizolid phosphate via oral administration. Pharmacokinetic sampling occurred at the following time points: Group 1 (part of the IV Group): Day 1 immediately after infusion and 1.5, 2, 3, 4, 6, 12, and 24 hours; Group 2 (part of the IV Group): Day 1 immediately after infusion and 3, 6, 12, 24 and 48 hours; Group 3 (part of the Oral Group): Day 1 at 1, 2, 3, 4, 6, 8, 12, and 24 hours after oral dose; Group 4 (part of the Oral Group): Day 1 at 3, 6, 9, 12, 24 and 48 hours after oral dose.

  IV: immediately after the end of the infusion, and various time points up to 48 hours after the start of infusion as described above. Oral: at various time points up to 48 hours after the dose as described above.

Secondary Outcomes (3)

• Number of Participants Who Experienced at Least One Adverse Event

  Up to 9 days

• Number of Participants Who Discontinued Study Drug Due to an Adverse Event

  1 day

• Palatability of Oral Tedizolid Phosphate Suspension in Participants Who Received Oral Tedizolid Phosphate

  Following single oral dose on Day 1

Study Arms (6)

Group 1 Cohort 1: Tedizolid IV 5 mg/kg (6 to <12 years)

EXPERIMENTAL

Participants 6 to \<12 years of age received a single intravenous infusion of tedizolid phosphate dosed at 5 mg/kg of total body weight. Maximum dose is 200 mg of tedizolid phosphate.

Drug: Tedizolid Phosphate (IV)

Group 1 Cohort 2: Tedizolid IV 4 mg/kg (6 to <12 years)

EXPERIMENTAL

Participants 6 to \<12 years of age received a single intravenous infusion of tedizolid phosphate dosed at 4 mg/kg of total body weight. Maximum dose is 200 mg of tedizolid phosphate.

Drug: Tedizolid Phosphate (IV)

Group 2 Cohort 1: Tedizolid IV 6 mg/kg (2 to <6 years)

EXPERIMENTAL

Participants 2 to \<6 years of age received a single intravenous infusion of tedizolid phosphate dosed at 6 mg/kg of total body weight. Maximum dose is 200 mg of tedizolid phosphate.

Drug: Tedizolid Phosphate (IV)

Group 2 Cohort 2: Tedizolid IV 3 mg/kg (2 to <6 years)

EXPERIMENTAL

Participants 2 to \<6 years of age received a single intravenous infusion of tedizolid phosphate dosed at 3 mg/kg of total body weight. Maximum dose is 200 mg of tedizolid phosphate.

Drug: Tedizolid Phosphate (IV)

Group 3: Tedizolid oral 4 mg/kg (6 to <12 years)

EXPERIMENTAL

Participants 6 to \<12 years of age received a single dose of tedizolid phosphate oral suspension dosed at 4 mg/kg of total body weight. Maximum dose is 200 mg of tedizolid phosphate.

Drug: Tedizolid Phosphate (oral suspension)

Group 4: Tedizolid oral 3 mg/kg (2 to <6 years)

EXPERIMENTAL

Participants 2 to \<6 years of age received a single dose of tedizolid phosphate oral suspension dosed at 3 mg/kg of total body weight. Maximum dose is 200 mg of tedizolid phosphate.

Drug: Tedizolid Phosphate (oral suspension)

Interventions

Tedizolid Phosphate (IV) DRUG

200 mg/vial powder for injection

Also known as: Sivextro, TR-701 FA, MK-1986

Group 1 Cohort 1: Tedizolid IV 5 mg/kg (6 to <12 years); Group 1 Cohort 2: Tedizolid IV 4 mg/kg (6 to <12 years); Group 2 Cohort 1: Tedizolid IV 6 mg/kg (2 to <6 years); Group 2 Cohort 2: Tedizolid IV 3 mg/kg (2 to <6 years)

Tedizolid Phosphate (oral suspension) DRUG

Powder for oral suspension 20 mg/mL following reconstitution

Also known as: Sivextro, TR-701 FA, MK-1986

Group 3: Tedizolid oral 4 mg/kg (6 to <12 years); Group 4: Tedizolid oral 3 mg/kg (2 to <6 years)

Eligibility Criteria

• Age: 2 Years - 11 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17)

You may qualify if:

• Receiving prophylaxis for or with a confirmed or suspected infection with Gram-positive bacteria and receiving concurrent antibiotic treatment with Gram-positive antibacterial activity;
• Weight \>5th percentile and \<95th percentile based on age;
• Stable condition as determined from medical history, physical examination, minimally 5-lead electrocardiogram (ECG), vital signs, and clinical laboratory evaluations;
• Females must be premenarchal, abstinent, or practicing an effective method of birth control;

You may not qualify if:

• History of seizures, other than febrile seizures, clinically significant cardiac arrhythmia, cystic fibrosis, moderate or severe renal impairment, or any physical condition that could interfere with the study results;
• Recent (3 month) history or current infection with viral hepatitis or other significant hepatic disease;
• History of drug allergy or hypersensitivity to oxazolidinones;
• Pregnant or breast feeding;
• Significant blood loss within 60 days prior to study start;
• Any acute or chronic condition that would limit the participant's ability to complete and/or participate in this clinical study.
• Treatment with investigational medicinal product within 30 days before the infusion/dose of study drug.
• Oral administration of methotrexate, topotecan, irinotecan or rosuvastatin, during administration of oral study drug. Administration during the follow-up period is allowed, as is administration during treatment with IV study drug.
• Use of monoamine oxidase inhibitors or serotonergic agents including tricyclic antidepressants, selective serotonin reuptake inhibitors, and serotonin 5 hydroxytryptamine receptor agonists (triptans), meperidine, or buspirone within,14 days prior to study, or planned use while on study.

Sponsors & Collaborators

• Merck Sharp & Dohme LLC: lead

Related Publications (1)

• Arrieta AC, Ang JY, Espinosa C, Fofanov O, Tondel C, Chou MZ, De Anda CS, Kim JY, Li D, Sabato P, Sears PS, Bradley JS. Pharmacokinetics and Safety of Single-dose Tedizolid Phosphate in Children 2 to <12 Years of Age. Pediatr Infect Dis J. 2021 Apr 1;40(4):317-323. doi: 10.1097/INF.0000000000003030.

  PMID: 33710976 DERIVED

MeSH Terms

Conditions

Gram-Positive Bacterial Infections

Interventions

tedizolid phosphate; Suspensions

Condition Hierarchy (Ancestors)

Bacterial Infections; Bacterial Infections and Mycoses; Infections

Intervention Hierarchy (Ancestors)

Colloids; Complex Mixtures; Dosage Forms; Pharmaceutical Preparations

Results Point of Contact

• Title: Senior Vice President, Global Clinical Development
• Organization: Merck Sharp & Dohme Corp.

ClinicalTrialsDisclosure@merck.com

1-800-672-6372

Study Officials

• Medical Director

  Merck Sharp & Dohme LLC

  STUDY DIRECTOR

Publication Agreements

• PI is Sponsor Employee: No
• Restriction Type: OTHER
• Restrictive Agreement: Yes

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: April 1, 2016
• First Posted: April 25, 2016
• Study Start: May 2, 2016
• Primary Completion: December 16, 2018
• Study Completion: December 21, 2018
• Last Updated: December 20, 2019
• Results First Posted: December 20, 2019

Record last verified: 2019-12

Data Sharing

• IPD Sharing: Will share