Evaluating Aztreonam-Avibactam for Treating Bacterial Infections in Infants and Newborns
Official title: A PHASE 2A, 2-PART, OPEN-LABEL, NON-RANDOMIZED, MULTICENTER, SINGLE AND MULTIPLE DOSE TRIAL TO EVALUATE PHARMACOKINETICS, SAFETY AND TOLERABILITY OF AZTREONAM AND AVIBACTAM ± METRONIDAZOLE IN NEONATES AND INFANTS FROM BIRTH TO LESS THAN 9 MONTHS OF AGE WITH SUSPECTED OR CONFIRMED INFECTIONS DUE TO GRAM-NEGATIVE PATHOGENS REQUIRING INTRAVENOUS ANTIBIOTIC TREATMENT
Run by Pfizer · NCT06462235 · Data updated 2026-11-12
This study is testing a new antibiotic combination to see if it is safe and effective for treating bacterial infections in hospitalized infants and newborns.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | Any age to 39 Weeks |
| Sex | All |
| Enrollment | 48 (estimated) |
| Sponsor | Pfizer Industry-sponsored |
| Locations | 32 sites (Orange, California and 31 other locations) |
| Status | Recruiting |
| Started | September 25, 2024 |
| Main results expected | April 25, 2027 |
| Study ends | April 25, 2027 |
| Registry record updated | October 15, 2026 |
| Trial ID | NCT06462235 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are hospitalized infants and newborns up to 9 months old who are receiving intravenous antibiotics for suspected or confirmed bacterial infections.
✕Probably not a fit
Patients with severe renal impairment or those who have received other investigational products recently may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study aims to assess the safety and effects of a combination antibiotic, aztreonam-avibactam (ATM-AVI), in hospitalized infants and newborns with bacterial infections caused by gram-negative bacteria. The study is divided into two parts: Part A involves a single intravenous infusion of ATM-AVI to evaluate safety and pharmacokinetics, while Part B consists of multiple infusions for confirmed infections. Participants will be closely monitored for safety and tolerability during and after the treatment. The study will enroll a total of 48 participants across four age cohorts, ensuring a comprehensive evaluation of the treatment's effects in this vulnerable population.
Why it matters
Potential benefit: If successful, this treatment could provide a new effective option for managing serious bacterial infections in infants and newborns.
How similar studies have gone: While this approach is novel in this specific population, similar studies have shown promise in treating bacterial infections with combination antibiotics.
Who can join: the full rules
Show full inclusion / exclusion criteria
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.
Where it's running
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Children's Hospital of Orange County Southwest Tower
Orange, California, United States Recruiting -
Children's Hospital of Orange County
Orange, California, United States Recruiting -
Children's Hospital Colorado
Aurora, Colorado, United States Recruiting -
Riley Hospital for Children at Indiana University Health
Indianapolis, Indiana, United States Recruiting -
Norton Children's Hospital
Louisville, Kentucky, United States Recruiting -
Novak Center for Children's Health
Louisville, Kentucky, United States Recruiting
Show 26 more locations
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University of Louisville, Norton Children's Research Institute
Louisville, Kentucky, United States Recruiting -
Tufts Medical Center
Boston, Massachusetts, United States Recruiting -
Duke University - Main Hospital and Clinics
Durham, North Carolina, United States Recruiting -
Memorial Hermann Hospital - Texas Medical Center
Houston, Texas, United States Recruiting -
The University of Texas Health Science Center at Houston
Houston, Texas, United States Recruiting -
Sanatorio Sagrado Corazón
Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina Recruiting -
Clinica Del Niño Y La Madre
Mar del Plata, Buenos Aires, Argentina Recruiting -
Clinica Privada del Sol S.A
Córdoba, Córdoba Province, Argentina Recruiting -
Hospital del Niño Jesús
San Miguel de Tucumán, Tucumán Province, Argentina Recruiting -
UMHAT Deva Maria
Burgas, Bulgaria Recruiting -
Umhat Kanev
Rousse, Bulgaria Recruiting -
Nirmal Hospital Pvt Ltd.
Surat, Gujarat, India Recruiting -
RajaRajeswari Medical College and Hospital
Bengaluru, Karnataka, India Recruiting -
Sahyadri Super Speciality Hospital
Pune, Maharashtra, India Recruiting -
Medanta Hospital Lucknow
Lucknow, Uttar Pradesh, India Recruiting -
Institute of Child Health
Kolkata, West Bengal, India Recruiting -
Schneider Children's Medical Center
Petah Tikva, Central District, Israel Recruiting -
Rambam Health Care Campus
Haifa, Northern District, Israel Recruiting -
Azienda Ospedaliera Universitaria Meyer IRCCS
Florence, Florence, Italy Recruiting -
Hospital Universitario La Paz
Madrid, Madrid, Comunidad de, Spain Recruiting -
Hsinchu Municipal Mackay Children's Hospital
Hsinchu, Hsinchu, Taiwan Recruiting -
Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation
Hualien City, Hualien, Taiwan Recruiting -
Taichung Veterans General Hospital
Taichung, Taiwan Recruiting -
Chang Gung Medical Foundation Linkou Chang Gung Memorial Hospital
Taoyuan, Taiwan Recruiting -
Ippokrateio General Hospital of Thessaloniki
Thessaloniki, Kentrikí Makedonía, Greece Not yet recruiting -
Hospital Universitario 12 de Octubre
Madrid, Spain Not yet recruiting
Study contacts
- Study coordinator: Pfizer CT.gov Call Center
- Email: ClinicalTrials.gov_Inquiries@pfizer.com
- Phone: 1-800-718-1021
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Different dosing schedules of ceftazidime‑avibactam plus aztreonam for carbapenem‑resistant Gram‑negative infections
This trial tests different dosing schedules of ceftazidime‑avibactam plus aztreonam to see which works best for adults with metallo‑β‑lactamase–producing, carbapenem‑resistant Gram‑negative infections.
-
Feireqing Granules added to standard care for severe pneumonia from resistant Gram-negative infections
This trial tests whether Feireqing Granules, used with standard treatment, can help adults with severe pneumonia caused by drug-resistant Gram-negative bacteria.
-
Evaluating Fluorothiazinone for Preventing Bacterial Infections in Ventilated Patients
This study is testing if a new drug called Fluorothiazinone can help prevent bacterial infections in patients on ventilators in the ICU.
-
Comparing Aztreonam and Avibactam to Standard Therapy for Serious Infections in Children
This study is testing if two new medications, Aztreonam and Avibactam, can help children with serious bacterial infections feel better compared to the usual treatments they receive.
-
Predicting Death in ICU Patients with Multidrug-Resistant Gram-Negative Infections
This study tests whether a Mortality risk model can predict outcomes for critically ill adults in the ICU who are colonized or infected with multidrug-resistant Gram-negative bacteria.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.