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Badanie mające na celu zdobycie wiedzy na temat leku Aztreonam-Avibaktam (ATM-AVI) u niemowląt i noworodków przyjmowanych do szpitali z zakażeniem bakteryjnym (CHERISH) (CHERISH)

14 października 2026 zaktualizowane przez: Pfizer

Faza 2a, dwuczęściowe, otwarte, nierandomizowane, wieloośrodkowe badanie z pojedynczą i wielokrotną dawką, mające na celu ocenę farmakokinetyki, bezpieczeństwa i tolerancji aztreonamu i awibaktamu ± metronidazolu u noworodków i niemowląt od urodzenia do poniżej 9 miesiąca życia z Podejrzewane lub potwierdzone zakażenia wywołane przez patogeny Gram-ujemne wymagające dożylnego leczenia antybiotykami

The purpose of this study is to learn about the safety and effects of ATM-AVI for the possible treatment of infections caused by a type of bacteria called gram-negative bacteria.

The study medicine is a combination of an antibiotic, aztreonam (ATM), and another medicine, avibactam (AVI), which is used to help stop bacteria from being resistant to antibiotics. Antibiotics are medicines that fights bacteria and infections.

The study will include newborns and infants up to 9 months of age who are admitted in the hospital.

The study is conducted in 2 parts: Part A and Part B.

In Part A, all participants will receive a single intravenous (injected directly into a vein) infusion of ATM-AVI. This is to study the safety and effects of a single amount.

In Part B, all participants will receive multiple intravenous infusions of ATM-AVI as treatment for a possible or confirmed infection with gram-negative bacteria.

Przegląd badań

Status

Rekrutacyjny

Warunki

Interwencja / Leczenie

Szczegółowy opis

This is a 2-part Phase 2a, non-randomized, multicenter, open-label, single and multi-dose study to assess pharmacokinetics (PK), safety, and tolerability of ATM-AVI in hospitalized neonates and infants aged birth, including preterm birth, to <9 months. A total of 48 participants will be enrolled in 4 age cohorts of 12 each, 6 Part A and 6 Part B. Part A will begin enrolling before Part B and no infant may participate in both parts. Cohort 1 will include full term infants age ≥13 weeks to <39 weeks and preterm infants postmenstrual age ≥50 weeks to <75 weeks. Cohort 2 will include full term infants age ≥28 weeks to <13 weeks and preterm infants postmenstrual age ≥40 weeks to <50 weeks and ≥28 days of age. Cohort 3 will include full term infants age birth to <28 days. Cohort 4 will include preterm infants age birth to <28 days or postmenstrual age <40 weeks.

Participants in Part A must be hospitalized and receiving intravenous antibiotic treatment for a suspected or confirmed bacterial infection. Participants will receive a single 3 hour intravenous infusion of ATM-AVI and have 3 ATM-AVI blood level assessments during and up to 5 hour after the infusion. Participants will be observed for 48 hours following the infusion to assess safety and toleration and will have a final follow-up safety assessment which may be conducted by telephone 4-5 weeks following the infusion. The single infusion of ATM-AVI is administered to assess the safety, tolerability, and pharmacokinetics of a single dose of ATM-AVI and is not intended as treatment for the bacterial infection. The total duration of study participation in Part A is expected to be 5 weeks through the end of the final safety follow-up.

Participants in Part B must be hospitalized with suspected or confirmed aerobic gram-negative bacterial infection requiring intravenous antibacterial therapy. Part B participants will receive multiple 3 hour intravenous infusions of ATM-AVI every 6 hour (8 hours for preterm infants) for 3-14 days as treatment for their bacterial infection and to assess ATM-AVI pharmacokinetics, safety, tolerability, and efficacy. Participants with complicated intra-abdominal infection (cIAI) will also receive intravenous metronidazole and all participants will have the option to receive other intravenous antibiotic treatment for gram-positive bacteria, as appropriate. Participants who have a good clinical response after 72 hours of intravenous ATM-AVI treatment may be switched to a different orally administered antibiotic, if clinically appropriate. Part B participants will have a total of 5 ATM-AVI blood level assessments over the first 2 or more days following the start of ATM-AVI infusions and will have their clinical response assessed at the End of Treatment (intravenous and oral, if applicable), and at a Test-of-Cure (TOC) evaluation 7 to 14 days after the last antibiotic treatment (intravenous or oral). A final safety assessment which may be conducted by telephone will occur 4-5 weeks after the last dose of ATM-AVI. The total duration of study participation in Part B is expected to be up to 7 weeks through the end of the final safety follow-up.

Additional safety monitoring will be provided by an independent external Data Monitoring Committee (DMC). Enrollment for the study will begin with Part A, single dose, cohorts 1-3. Part A Cohort 4 (preterm neonates) will commence enrollment after sponsor and DMC review of plasma drug levels and safety for a least 2 participants in Part A Cohort 3 and review of ATM-AVI safety and tolerability for all participants enrolled at that time. Enrollment in the multidose Part B cohorts will be delayed until preliminary information is obtained regarding ATM-AVI multidose safety, tolerability, and drug levels for the participants 9 months to 2 years of age in the separate ongoing ATM-AVI pediatric study C3601008 [NCT05639647].

Typ studiów

Interwencyjne

Zapisy (Szacowany)

48

Faza

  • Faza 2

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

Lokalizacje studiów

    • Buenos Aires
      • Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentyna, 1039
        • Rekrutacyjny
        • Sanatorio Sagrado Corazón
      • Mar del Plata, Buenos Aires, Argentyna, 7600
        • Rekrutacyjny
        • Clinica Del Niño Y La Madre
    • Córdoba Province
      • Córdoba, Córdoba Province, Argentyna, X5000IIH
        • Rekrutacyjny
        • Clinica Privada del Sol S.A
    • Tucumán Province
      • San Miguel de Tucumán, Tucumán Province, Argentyna, 4000
        • Rekrutacyjny
        • Hospital del Niño Jesús
      • Burgas, Bułgaria, 8000
        • Rekrutacyjny
        • UMHAT Deva Maria
      • Rousse, Bułgaria, 7002
        • Rekrutacyjny
        • Umhat Kanev
    • Kentrikí Makedonía
      • Thessaloniki, Kentrikí Makedonía, Grecja, 546 42
        • Jeszcze nie rekrutacja
        • Ippokrateio General Hospital of Thessaloniki
      • Madrid, Hiszpania, 28041
        • Jeszcze nie rekrutacja
        • Hospital Universitario 12 de Octubre
    • Madrid, Comunidad de
      • Madrid, Madrid, Comunidad de, Hiszpania, 28046
        • Rekrutacyjny
        • Hospital Universitario La Paz
    • Gujarat
      • Surat, Gujarat, Indie, 395002
        • Rekrutacyjny
        • Nirmal Hospital Pvt Ltd.
    • Karnataka
      • Bengaluru, Karnataka, Indie, 560074
        • Rekrutacyjny
        • RajaRajeswari Medical College and Hospital
    • Maharashtra
      • Pune, Maharashtra, Indie, 411006
        • Rekrutacyjny
        • Sahyadri Super Speciality Hospital
    • Uttar Pradesh
      • Lucknow, Uttar Pradesh, Indie, 226030
        • Rekrutacyjny
        • Medanta Hospital Lucknow
    • West Bengal
      • Kolkata, West Bengal, Indie, 700017
        • Rekrutacyjny
        • Institute of Child Health
    • Central District
      • Petah Tikva, Central District, Izrael, 49202
        • Rekrutacyjny
        • Schneider Children's Medical Center
    • Northern District
      • Haifa, Northern District, Izrael, 3109601
        • Rekrutacyjny
        • Rambam Health Care Campus
    • California
      • Orange, California, Stany Zjednoczone, 92868
        • Rekrutacyjny
        • Children's Hospital of Orange County
      • Orange, California, Stany Zjednoczone, 92868
        • Rekrutacyjny
        • Children's Hospital of Orange County Southwest Tower
    • Colorado
      • Aurora, Colorado, Stany Zjednoczone, 80045
        • Rekrutacyjny
        • Children's Hospital Colorado
    • Indiana
      • Indianapolis, Indiana, Stany Zjednoczone, 46202
        • Rekrutacyjny
        • Riley Hospital for Children at Indiana University Health
    • Kentucky
      • Louisville, Kentucky, Stany Zjednoczone, 40202
        • Rekrutacyjny
        • Norton Children's Hospital
      • Louisville, Kentucky, Stany Zjednoczone, 40202
        • Rekrutacyjny
        • Novak Center for Children's Health
      • Louisville, Kentucky, Stany Zjednoczone, 40202
        • Rekrutacyjny
        • University of Louisville, Norton Children's Research Institute
    • Massachusetts
      • Boston, Massachusetts, Stany Zjednoczone, 02111
        • Rekrutacyjny
        • Tufts Medical Center
    • North Carolina
      • Durham, North Carolina, Stany Zjednoczone, 27710
        • Rekrutacyjny
        • Duke University - Main Hospital and Clinics
    • Texas
      • Houston, Texas, Stany Zjednoczone, 77030
        • Rekrutacyjny
        • The University of Texas Health Science Center at Houston
      • Houston, Texas, Stany Zjednoczone, 77030
        • Rekrutacyjny
        • Memorial Hermann Hospital - Texas Medical Center
      • Taichung, Tajwan, 407
        • Rekrutacyjny
        • Taichung Veterans General Hospital
      • Taoyuan, Tajwan, 33305
        • Rekrutacyjny
        • Chang Gung Medical Foundation Linkou Chang Gung Memorial Hospital
    • Hsinchu
      • Hsinchu, Hsinchu, Tajwan, 300046
        • Rekrutacyjny
        • Hsinchu Municipal Mackay Children's Hospital
    • Hualien
      • Hualien City, Hualien, Tajwan, 970
        • Rekrutacyjny
        • Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation
    • Florence
      • Florence, Florence, Włochy, 50139
        • Rekrutacyjny
        • Azienda Ospedaliera Universitaria Meyer IRCCS

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

Nie starszy niż 9 miesięcy (Dziecko)

Akceptuje zdrowych ochotników

Nie

Płeć kwalifikująca się do nauki

Wszystko

Opis

Inclusion Criteria

Participants must meet the following key inclusion criteria to be eligible for enrollment into the study:

  1. Hospitalized with age from birth <9 months, including preterm birth
  2. Part A: Receiving IV antibiotics for treatment of suspected or confirmed bacterial infection, including but not limited to cIAI, cUTI, HAP/VAP, BSI, or sepsis.
  3. Part B: Suspected or confirmed gram-negative bacterial infection requiring IV antibiotics, including but not limited to cIAI, cUTI, HAP/VAP, BSI, or sepsis.

Participants with any of the following characteristics/conditions will be excluded:

  1. Received any other investigational medicinal product within the longer of 30 days or 5 half-lives before enrollment.
  2. Any medical or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
  3. Severe renal impairment or known significant renal disease, as evidenced by elevated serum creatinine at screening, or urinary output <0.5 mL/kg/h for 6 consecutive hours or requirement for dialysis.
  4. Part B Only: Received >24 hours of systemic antibiotic treatment for gram-negative organisms at time of enrollment, unless documented treatment failure or lack of improvement in at least one objective sign or symptom of infection after ≥48 hours of antibiotics.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Podstawowa nauka
  • Przydział: Nielosowe
  • Model interwencyjny: Zadanie dla jednej grupy
  • Maskowanie: Brak (otwarta etykieta)

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Eksperymentalny: Part A, Cohorts 1-4

Single dose pharmacokinetics.

Single intravenous infusion of aztreonam-avibactam over 3 hours to assess pharmacokinetics, safety, and toleration.

Eksperymentalny: Part B, Cohorts 1-4

Multi-dose pharmacokinetics and treatment

Multiple intravenous infusions of aztreonam-avibactam over 3 hours, repeated every 6-8 hours up to 14 days to assess pharmacokinetics, safety, toleration, and efficacy.

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Maximum Predicted Plasma Concentration (Cmax) of ATM and AVI
Ramy czasowe: Up to Day 15

Cmax is the maximum plasma concentration of ATM and AVI as population pharmacokinetic (popPK) analysis predicts.

Up to Day 15
Area under the Concentration-Time Curve (AUC) of ATM-AVI
Ramy czasowe: Up to Day 15

AUC is a measure of the plasma concentration of ATM and AVI overtime as popPK analysis predicts.

Up to Day 15
Plasma Elimination Half-Life (t1/2)
Ramy czasowe: Up to Day 15

Half-life is the time measured for the plasma concentration of ATM and AVI to decrease by one half as popPK analysis predicts.

Up to Day 15
Apparent Clearance (CL)
Ramy czasowe: Up to Day 15

ATM and AVI clearance is a quantitative measure of the rate at which ATM and AVI are removed from the blood (rate at which ATM and AVI are metabolized or eliminated by normal biological processes). Clearance obtained after intravenous infusion dose (apparent clearance) is influenced by the fraction of the dose absorbed.

Up to Day 15
Plasma concentrations of ATM and AVI by nominal sampling time
Ramy czasowe: Up to Day 15

Plasma concentrations of ATM and AVI on Day 1 and at steady state (Day 2 or later) will be summarized by the nominal sampling time using descriptive statistics (eg number, mean, standard deviation).

Up to Day 15
Proportion of Participants reporting Adverse Events (AE)
Ramy czasowe: Baseline up to Day 50

Proportion of participant AE reports of vital signs, physical examinations, and clinical laboratory tests overall and by age cohort. For each AE the last assessment made prior to the first dose of study drug will be defined as the baseline.

Baseline up to Day 50
Proportion of Participants reporting Serious Adverse Events (SAE)
Ramy czasowe: Baseline up to Day 50

Proportion of participant SAE reports of vital signs, physical examinations, and clinical laboratory tests overall and by age cohort. For each SAE the last assessment made prior to the first dose of study drug will be defined as the baseline.

Baseline up to Day 50
Proportion of Participants reporting AEs leading to discontinuation of study drug
Ramy czasowe: Baseline up to Day 50

Proportion of Participants reporting AEs leading to discontinuation of study drug from baseline. For each discontinuation the last assessment made prior to the first dose of study drug will be defined as the baseline.

Baseline up to Day 50
Proportion of Participants reporting AEs resulting in death
Ramy czasowe: Baseline up to Day 50

Proportion of Participants reporting AE resulting in death from baseline. For each death the last assessment made prior to the first dose of study drug will be defined as the baseline.

Baseline up to Day 50
Proportion of Participants reporting liver injury and acute kidney injury
Ramy czasowe: Baseline up to Day 50

Proportion of Participants reporting liver injury and acute kidney injury from baseline. For each report of liver and acute kidney injury the last assessment made prior to the first dose of study drug will be defined as the baseline.

Baseline up to Day 50

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Part B: Proportion of participants with each clinical outcome and with a favorable clinical outcome at end of IV study treatment (EOIV)
Ramy czasowe: Up to 15 days after start of IV study treatment

Clinical Cure is defined baseline signs and symptoms improved such that no further antimicrobial treatment is required for an aerobic gram-negative baseline infection. Participants who receive treatment for gram-positive organisms or adjunctive therapy for Pseudomonas aeruginosa, as allowed per protocol, can still have a response of cure. Clinical improvement is defined as baseline signs and symptoms sufficiently improved to allow switching to an oral antibiotic treatment. A favorable outcome is clinical cure or clinical improvement. Failure is defined as a requirement for further antibiotic treatment, including following premature discontinuation due to an adverse event, or death after receiving at least 48 hours of treatment. Indeterminant is defined as data not available for evaluation of efficacy for any reason.

Up to 15 days after start of IV study treatment
Part B: Proportion of participants with each clinical outcome and with a favorable clinical outcome at end of treatment (EOT)
Ramy czasowe: Within 48 hours after last dose of oral switch treatment

EOT is only applicable for participants switched to an oral antibiotic treatment. Possible outcomes are cure, failure, or indeterminant.

Within 48 hours after last dose of oral switch treatment
Part B: Proportion of participants with each clinical outcome and with a favorable clinical outcome at test of cure (TOC)
Ramy czasowe: 7-14 days after the last study treatment

Possible outcomes are cure, failure, or indeterminant.

7-14 days after the last study treatment
Part B: Proportion of participants with a favorable microbiological response at TOC
Ramy czasowe: 7-14 days after the last study treatment

A favorable response is eradication or presumed eradication. Eradication is absence of the causative pathogen from an appropriately obtained specimen at the site of infection. Presumed eradication is when a repeat culture was not performed and the clinical response is cure.

7-14 days after the last study treatment
Part B: Counts and proportions of pathogens with each per-pathogen microbiological response at EOIV/EOT
Ramy czasowe: Up to 15 days after start of IV study treatment

Possible outcomes are eradication, presumed eradication, persistence, presumed persistence or indeterminate. Presumed eradication/persistence based on repeat culture not performed and clinical outcome of cure/failure. Persistence is the causative pathogen is still present from an appropriately obtained specimen at the site of the infection. Indeterminant includes participant lost to follow-up or death after receiving less than 48 hours of study treatment.

Up to 15 days after start of IV study treatment
Part B: Counts and proportions of pathogens with each per-pathogen microbiological response at TOC
Ramy czasowe: 7-14 days after the last study treatment

Possible outcomes are eradication, presumed eradication, persistence, presumed persistence or indeterminate.

7-14 days after the last study treatment
Part B: Counts and proportions of participants with emergent infections (new infections or superinfections) during the study
Ramy czasowe: Through study completion, up to Day 50

Superinfection is defined as emergence of a new pathogen associated with worsening signs and symptoms of infection and a requirement for additional antibiotics during the period up to and including EOIV/EOT. New infection is defined as emergence of a new pathogen associated with worsening signs and symptoms of infection and a requirement for additional antibiotics during the period after EOIV/EOT.

Through study completion, up to Day 50

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Współpracownicy

Śledczy

  • Dyrektor Studium: Pfizer CT.gov Call Center, Pfizer

Publikacje i pomocne linki

Osoba odpowiedzialna za wprowadzenie informacji o badaniu dobrowolnie udostępnia te publikacje. Mogą one dotyczyć wszystkiego, co jest związane z badaniem.

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Rzeczywisty)

25 września 2024

Zakończenie podstawowe (Szacowany)

25 kwietnia 2027

Ukończenie studiów (Szacowany)

25 kwietnia 2027

Daty rejestracji na studia

Pierwszy przesłany

28 maja 2024

Pierwszy przesłany, który spełnia kryteria kontroli jakości

14 czerwca 2024

Pierwszy wysłany (Rzeczywisty)

17 czerwca 2024

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

15 października 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

14 października 2026

Ostatnia weryfikacja

1 października 2026

Więcej informacji

Terminy związane z tym badaniem

Inne numery identyfikacyjne badania

  • C3601010
  • 2023-507757-15-01 (Identyfikator rejestru: CTIS (EU))
  • 2023 (Grant/umowa NIH USA)

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

TAK

Opis planu IPD

Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Tak

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

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