This is a Phase 1, open-label, three-part, study in approximately 96 healthy adult participants between 18 and 55 years of age (both inclusive) (16 participants in Part 1, 20 participants in Part 2 and , and approximately 60 participants in Part 3). The study will be conducted at one clinical site in the United States. Participants in Part 1 and Part 2 may be conducted in parallel. The duration of an individual participation will be approximately 46 days for Part 1 , 43 days for Part 2 and 83 days for Part 3. All participants in Parts I und 2 will be screened within 28 days prior to dosing. All participants in Part 3 will be screened within 33 days prior to dosing. They will be admitted to the clinical research unit (CRU) the day prior to dosing and will remain in the CRU until the end of the PK sample collection period. All participants will return to the clinic for follow-up assessments 7 days ± 1 day after the last dose of study intervention. Participants in Part 3 will also return to the clinic for follow-up assessments 28 days ± 2 days and 42 days ± 2 days after the last dose of study intervention.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
96
capsules
capsules
Fixed Dose Combination (FDC)
40 mg capsule
500 mg-125 mg oral doses
ICON, Clinical Research Phase I Unit
Lenexa, Kansas, United States
RECRUITINGPart 1 Plasma PK AUC0-∞ (ceftibuten, ledaborbactam, and ledaborbactam etzadroxil)
Area under the concentration time curve from time zero to infinity (AUC0-∞)
Time frame: 0 - 48 hours on days 1, 4 and 11
Part 1 Plasma PK Cmax (ceftibuten, ledaborbactam, and ledaborbactam etzadroxil)
Maximum observed concentration (Cmax)
Time frame: 0 - 48 hours on days 1, 4 and 11
Proportion of participants of Part 2 experiencing Treatment-emergent adverse events (TEAEs), Serious TEAEs, or TEAEs leading to discontinuation.
Participants experiencing Treatment-emergent adverse events (TEAEs), Serious TEAEs, or TEAEs leading to discontinuation.
Time frame: Day 1 thru Day 18 (+/-1)
Proportion of participants of Part 3 experiencing Treatment-emergent adverse events (TEAEs), Serious TEAEs, or TEAEs leading to discontinuation.
Participants experiencing Treatment-emergent adverse events (TEAEs), Serious TEAEs, or TEAEs leading to discontinuation.
Time frame: Day 1 thru Day 49 (± 2 days)
Proportion of participants of Part 1 experiencing Treatment-emergent adverse events (TEAEs), Serious TEAEs, or TEAEs leading to discontinuation.
Participants experiencing Treatment-emergent adverse events (TEAEs), Serious TEAEs, or TEAEs leading to discontinuation.
Time frame: Day 1 thru Day 18 (+/-1)
Part 2 Plasma PK AUC0-12h (ceftibuten, ledaborbactam, and ledaborbactam etzadroxil)
Area under the concentration time curve from time zero to 12h (AUC0-12h)
Time frame: Day 1 and Day 7
Part 2 Plasma PK Cmax (ceftibuten, ledaborbactam, and ledaborbactam etzadroxil)
Maximum observed concentration (Cmax)
Time frame: Day 1 and Day 7
Part 3 Plasma PK AUC0-Tau (ceftibuten and/or ledaborbactam)
Area under the concentration time curve from time zero to Tau (AUC0-Tau)
Time frame: At Day 1 and Day 7
Part 3 Plasma PK Cmax (ceftibuten and/or ledaborbactam)
Maximum observed concentration (Cmax)
Time frame: At Day 1 and Day 7
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