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PK Study of Single-Dose ZTI-01 in Children (<12 Years of Age)

Phase 1, Non-comparative, Open-Label Study of Pharmacokinetics and Safety of a Single-Dose of ZTI-01 (Fosfomycin for Injection) in Pediatric Subjects (<12 Years of Age)

Status
UNKNOWN
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03709914
Acronym
Pediatric_PK
Enrollment
21
Registered
2018-10-17
Start date
2018-05-24
Completion date
2026-01-10
Last updated
2023-09-15

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

Conditions

Pediatric ALL

Keywords

Pediatric PK

Brief summary

Phase 1 study, a single dose of ZTI-01 given to pediatric subjects (under 12 years of age) who require antibiotic therapy to see what the body does to the drug (pharmacokinetics) and to compare if these effects are similar to those observed in adults at a 6g ZTI-01 dose. Study will help establish pediatric dosing in younger children by age cohort. This is a multiple-center, open-label, PK study of ZTI-01 (fosfomycin for injection) single dose scaled by allometric weight-modeling from an adult ZTI-01 dose of 6 grams. Eligible subjects must be receiving standard of care antibiotics for proven or suspected bacterial infection or for peri-operative prophylaxis surgery (in or out of hospital).

Detailed description

Based on pre-dose weight on Day -1, subjects weighing within the 3rd to \< 97th percentile based on age - will receive a single, weight adjusted dose of ZTI-01 via continuous IV infusion or syringe pump over a 1- hour (+10 min) period. Pediatric subjects participating in this study will be assigned to one of three cohorts based on age: Cohort 1: ≥ 6 years to \<12 years (n=6 PK evaluable subjects) Cohort 2: ≥ 2 years to \<6 years (n=6 PK evaluable subjects) Cohort 3: Birth to \< 2 years (n=9 PK evaluable subjects), split into 3 subgroups: (3a) Birth (defined as full term: 37 weeks of gestations or greater) to \< 3 mos, (3b) ≥ 3 mos to \< 6 mos, (3c) ≥ 6 mos to \< 24 months Cohorts 1 and 2 will be enrolled first with safety and PK data evaluated before enrolling the youngest Cohort 3. Blood for fosfomycin concentration measurement will be collected throughout the study. Safety will be assessed by monitoring adverse and serious adverse events based on medical history, vital signs, ECG, laboratory assessment and physical examination.

Interventions

DRUGZTI-01 100 mg/kg

ZTI-01 intravenous (IV)

DRUGZTI-01 75 mg/kg

ZTI-01 intravenous (IV)

Sponsors

Nabriva Therapeutics AG
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Masking description

Subjects \<12 years of age, are assigned by age to one of five age based cohorts. Study is open label and not masked.

Intervention model description

multiple-center, non-comparative, open-label, PK study

Eligibility

Sex/Gender
ALL
Age
No minimum to 11 Years
Healthy volunteers
No

Inclusion criteria

* Signed consent/assent * Male or female subjects aged from Birth (defined as full term: 37 weeks of gestation or greater) but less than 12 years old * Hospitalized, currently receiving antibacterial treatment for confirmed or suspected bacterial infection * If of reproductive potential, agrees to avoid becoming pregnant or impregnating a partner from the time of consent through 24 hours after completion of study drug administration * Has sufficient intravascular access to receive study drug through peripheral or central line

Exclusion criteria

* Has history of known allergy, hypersensitivity, or intolerance to oral or intravenous fosfomycin * Screening serum alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \>3x ULN or total bilirubin \>2x ULN * Female is post onset of menarche and currently pregnant, or breast feeding, or has a positive serum or urine β-human chorionic gonadotropin (β-hCG) pregnancy test * Impaired renal function at screening based on the Revised Schwartz Formula using actual body height * Known infection with immunodeficiency virus (HIV), hepatitis C virus, or hepatitis B virus * Other laboratory tests, obtained as standard of care, that are outside the normal limits, considered by the Investigator, to be clinically significant * Have surgery scheduled during collection period of plasma for fosfomycin concentrations * Weighs outside of the 3rd to less than \<97th percentile based on age * History of a seizure disorder requiring ongoing treatment with anticonvulsive therapy or prior treatment with anti-convulsive therapy within the last 3 years * Is currently participating in or has participated in an interventional clinical trial with an investigational compound or device within 30 days or 5 half-lives, or twice the duration of the biological effect of any drug (whichever is longer) of administration of the study drug * Has enrolled previously in the current trial or has received ZTI-01 or fosfomycin (IV or oral) for any other reason within the last 30 days * Is expected to survive less than 72 hours after completion of study drug administration * Plans to use cardiopulmonary bypass, extracorporeal membrane oxygenation, hemodialysis, or peritoneal dialysis during the study * Clinically significant abnormalities on the ECG; or have or be at risk for major cardiac events or dysfunction including QTc prolongation, clinically unstable cardiac disease, receipt within 24 hours before the start of study drug of a medication that is labelled to prolong the QT interval, and for breastfed infant subjects only - receipt by the subject's mother within 24 hours before the start of study drug of a medication that is labelled to prolong the QT interval * Planned blood transfusion within 24 hours of study drug administration or expected before the end of the PK sampling, or has had significant blood loss (≥5% of total blood volume) within 4 weeks before the screening visit * Any condition that, in the opinion of the PI, would compromise the safety of the subject or the quality of the data * Subject or caregiver/parent is unable or unwilling to adhere to the study-specified procedures and restrictions

Design outcomes

Primary

MeasureTime frameDescription
Area under plasma concentration-time curve (AUC) after a single dose of ZTI-01From time end of 1-hour infusion on Day 1, up to 8-12 hours post infusion on Day 1By age cohort, determine the ZTI-01 pharmacokinetic area under the plasma concentration-time curve

Secondary

MeasureTime frameDescription
Safety: Treatment Emergent Adverse Events (TEAE)Baseline (start of dosing) through end of study follow-up (Day 2)Number and Incidence of TEAEs by age cohort
Maximum concentration (Cmax) after a single dose of ZTI-01From time end of 1-hour infusion on Day 1, up to 8-12 hours post infusion on Day 1By age cohort, determine the ZTI-01 pharmacokinetic maximum concentration (Cmax)

Countries

United States

Contacts

Primary ContactSteve Gelone
Steve.Gelone@nabriva.com6108166641

Outcome results

None listed

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