Drugs / Ampicillin
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Ampicillin

also known as Ampicillin/sulbactam · Unasyn · AMS
Developed for
bacterial infectious disease · appendicitis · HIV infectious disease · preterm premature rupture of the membranes · Acinetobacter infectious disease · acute cholecystitis · bacterial pneumonia · endocarditis
+24 more · Enterococcus infectious disease · heart valve disorder · infection-related hemolytic uremic syndrome · infectious disease · infectious peritonitis · infective endocarditis · neonatal sepsis · pneumonia · prosthesis-related infectious disease · salmonellosis · thoracic aortic aneurysm · aspiration pneumonia · bacterial infectious disease with sepsis · bacterial urinary tract infection · chorioamnionitis · cleft palate · endometritis · escherichia coli infection · infectious disease with sepsis · infectious meningitis · inherited dystonia · lung abscess · protein-energy malnutrition · skin disease caused by bacterial infection
Investigated by
Andalusian Public Foundation for Health Research in Seville · Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) · National Institute of Allergy and Infectious Diseases (NIAID) · Spanish Clinical Research Network - SCReN · Spanish Network for Research in Infectious Diseases · The University of Texas Health Science Center, Houston
+39 more · Assaf-Harofeh Medical Center · Attikon Hospital · Children's Mercy Hospital Kansas City · Department for International Development, United Kingdom · Dr. Kariadi General Hospital Medical Center · Duke University · HaEmek Medical Center, Israel · Karl Landsteiner Insitute for Nephrology and Haemato-Oncology · Karl Landsteiner University of Health Sciences · Kenya Ministry of Health · Konya Meram State Hospital · London School of Hygiene and Tropical Medicine · Massachusetts General Hospital · Medical College of Wisconsin · Medical Research Council · Medical University of Cologne · Medical University of Vienna · Monaldi Hospital · National Institute for Health Research, United Kingdom · National Institute of Mental Health (NIMH) · National Institute on Drug Abuse (NIDA) · Ohio State University · Petrovsky National Research Centre of Surgery · Pfizer · Pisa University Hospital · Rambam Health Care Campus · Rutgers Robert Wood Johnson Medical School · Sara Thønnings · Sheba Medical Center · Society for Pediatric Dermatology · Uji Takeda Hospital · Universitas Diponegoro · University of Florida · University of Nairobi · University of Oxford · University of Southern California · University of Vienna · Wellcome Trust · West Virginia University

Regulatory milestones approvals, filings & regulatory actions · 1 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Approved US (FDA) OMNIPEN (AMPICILLIN) 1965-12-17 fda.gov

Trials 26 · a red edge is where a trial was stopped

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 11 trial
Phase 1 NCT04198129 Oct 2020 → Jan 2022 infectious disease The University of Texas Health Science Center, Houston Terminated No outcome recorded
Phase 1/21 trial
Phase 1/2 NCT07610486 Jul 2026 → Jul 2027 expected neonatal sepsis Duke University Not yet recruiting No outcome recorded
Phase 22 trials
Phase 2 NCT06406114 May 2025 → Jul 2028 expected anaphylaxis, drug allergy, drug pseudoallergy Massachusetts General Hospital Recruiting No outcome recorded
Phase 2 NCT02784821 Jan 2017 → Sep 2019 bacterial infectious disease, bronchopulmonary dysplasia, intestinal perforation, intracerebral hemorrhage +3 University of Florida Completed No outcome recorded
Phase 2/31 trial
Phase 2/3 NCT07113587 Apr 2014 → Jul 2017 infectious peritonitis Karl Landsteiner Insitute for Nephrology and Haemato-Oncology Completed No outcome recorded
Phase 35 trials
Phase 3 NCT04041791 Aug 2019 → Apr 2024 pneumonia University of Oxford Completed No outcome recorded
Phase 3 NCT02795949 Oct 2016 → Jan 2020 bacterial infectious disease Andalusian Public Foundation for Health Research in Seville Completed No outcome recorded
Phase 3 NCT02007603 Aug 2013 → Feb 2015 infection-related hemolytic uremic syndrome Medical University of Vienna Completed No outcome recorded
Phase 3 NCT01189487 Oct 2010 → Apr 2011 bacterial pneumonia Pfizer Completed No outcome recorded
Phase 3 NCT00021671 ? → Nov 2004 HIV infectious disease National Institute of Allergy and Infectious Diseases (NIAID) Completed No outcome recorded
Phase 413 trials
Phase 4 NCT06917157 May 2025 → May 2026 preterm premature rupture of the membranes The University of Texas Health Science Center, Houston Withdrawn No outcome recorded
Phase 4 NCT06423898 Oct 2024 → Jul 2027 expected infective endocarditis Andalusian Public Foundation for Health Research in Seville Recruiting No outcome recorded
Phase 4 NCT05922124 Sep 2024 → Jul 2026 overdue Acinetobacter infectious disease Rambam Health Care Campus Recruiting No outcome recorded
Phase 4 NCT06494072 Aug 2024 → May 2028 expected Medical College of Wisconsin Recruiting No outcome recorded
Phase 4 NCT06396078 Jul 2024 → Dec 2026 expected preterm premature rupture of the membranes Ohio State University Recruiting No outcome recorded
Phase 4 NCT06368102 May 2024 → Aug 2025 Uji Takeda Hospital Completed No outcome recorded
Phase 4 NCT06448624 Apr 2024 → Jan 2025 congenital heart block, prosthesis-related infectious disease Universitas Diponegoro Completed No outcome recorded
Phase 4 NCT05394298 Jul 2022 → Jul 2024 Enterococcus infectious disease Andalusian Public Foundation for Health Research in Seville Unknown No outcome recorded
Phase 4 NCT05156437 Mar 2022 → Oct 2024 endocarditis West Virginia University Terminated No outcome recorded
Phase 4 NCT04290104 Oct → Nov 2020 acute cholecystitis Konya Meram State Hospital Unknown No outcome recorded
Phase not applicable3 trials
NCT06336213 Jan 2024 → Dec 2026 expected heart valve disorder, thoracic aortic aneurysm Petrovsky National Research Centre of Surgery Recruiting No outcome recorded
NCT00462020 Mar 2007 → Nov 2008 appendicitis Children's Mercy Hospital Kansas City Completed No outcome recorded
NCT00002052 HIV infectious disease, salmonellosis University of Southern California Completed No outcome recorded
Also used as a comparator or background therapy in 43 trials
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 01 trial
Phase 0 NCT02099240 Comparator Mar 2014 → Nov 2018 osteomyelitis University of Louisville Terminated No outcome recorded
Phase 11 trial
Phase 1 NCT01433757 Comparator Sep 2011 → Jun 2017 inherited dystonia University of Florida Completed No outcome recorded
Phase 24 trials
Phase 2 NCT07318584 Comparator Mar 2026 → Feb 2028 expected escherichia coli discitis Oregon Health and Science University Not yet recruiting No outcome recorded
Phase 2 NCT03453177 Background Mar 2018 → Mar 2019 neonatal sepsis Drugs for Neglected Diseases Completed No outcome recorded
Phase 2 NCT02424734 Background Aug 2015 → Dec 2017 neonatal sepsis Pfizer Terminated No outcome recorded
Phase 2 NCT00760006 Comparator May 2008 → Aug 2015 cleft palate Joseph Losee Completed No outcome recorded
Phase 2/35 trials
Phase 2/3 NCT05051163 Comparator Jun 2021 → Jun 2024 HIV infectious disease, protein-energy malnutrition Makerere University Unknown No outcome recorded
Phase 2/3 NCT02605122 Comparator Apr 2016 → Mar 2018 bacterial pneumonia Melinta Therapeutics, Inc. Terminated No outcome recorded
Phase 2/3 NCT01994993 Comparator Dec 2013 → Jan 2017 Michael Cohen-Wolkowiez Completed No outcome recorded
Phase 2/3 NCT00879190 Comparator May 2009 → Jun 2012 chorioamnionitis Stanford University Completed No outcome recorded
Phase 2/3 NCT01633294 Comparator Oct 2008 → Jan 2011 chorioamnionitis, endometritis, infectious meningitis, neonatal sepsis Hospital de Santa Maria, Portugal Completed No outcome recorded
Phase 37 trials
Phase 3 NCT07326540 Comparator Mar 2026 → Dec 2027 expected Acinetobacter infectious disease, bacterial pneumonia BioVersys SAS Recruiting No outcome recorded
Phase 3 NCT05977400 Comparator Apr 2024 → Mar 2029 expected neurodevelopmental disorder Sharp HealthCare Not yet recruiting No outcome recorded
Phase 3 NCT06048692 Comparator Jan → Sep 2023 Beni-Suef University Unknown No outcome recorded
Phase 3 NCT03060473 Background Feb 2017 → Dec 2023 preterm premature rupture of the membranes The University of Texas Medical Branch, Galveston Terminated No outcome recorded
Phase 3 NCT02579161 Comparator Sep 2014 → Mar 2018 urolithiasis Northwell Health Completed No outcome recorded
Phase 414 trials
Phase 4 NCT07563504 Comparator Jul 2026 → Jan 2027 expected Sarawak General Hospital Not yet recruiting No outcome recorded
Phase 4 NCT06712641 Comparator Apr 2026 → Jun 2028 expected infectious disease with sepsis University Hospital, Akershus Recruiting No outcome recorded
Phase 4 NCT07236944 Comparator Dec 2025 → Mar 2029 expected bacterial urinary tract infection Uppsala University Recruiting No outcome recorded
Phase 4 NCT07183462 Background Sep 2025 → Jun 2029 expected pregnancy disorder, preterm premature rupture of the membranes Sheba Medical Center Recruiting No outcome recorded
Phase 4 NCT06440304 Comparator Jan 2025 → Dec 2026 expected bacterial infectious disease with sepsis Clinical Hospital Centre Zagreb Recruiting No outcome recorded
Phase not applicable11 trials
NCT07442357 Comparator Jun 2026 → Jun 2029 expected aortic valve stenosis Rigshospitalet, Denmark Not yet recruiting No outcome recorded
NCT07118384 Comparator May 2025 → Jan 2026 overdue Acinetobacter infectious disease Cairo University Recruiting No outcome recorded
NCT07148622 Comparator Oct 2024 → Aug 2025 preterm premature rupture of the membranes Yuzuncu Yil University Completed No outcome recorded
NCT05469984 Comparator Nov 2022 → Sep 2025 overdue preterm premature rupture of the membranes Western Galilee Hospital-Nahariya Recruiting No outcome recorded
NCT04202380 Background Jan 2020 → Jan 2021 preterm premature rupture of the membranes Assiut University Completed No outcome recorded

Evidence & citations 6 cited values

Every value below carries the sentence it was read from. 70 sources stand behind the page.

FieldValueCited text
Known as ampicillin “Beta-lactam antibiotic with spectrum for Enterococcus faecalis (e.g. ampicillin 2g) add-on in combination with cephalosporin as per-procedural prophylaxis in TAVI” NCT07442357
56

“Empirical therapy for suspected community-acquired sepsis with gentamicin + narrow spectrum betalactam (either one of penicillin, ampicillin, or cloxacillin)” NCT06712641

ampicillin 50mg/kg twice daily and gentamicin \[3mg/kg for babies \<2kg or 5mg/kg for babies \>2kg\] once daily for 7 days, as per Kenyan guidelines).” NCT03453177

“These include intravenous ceftriaxone, ampicillin, and amoxicillin and oral amoxicillin and amoxicillin-clavulanic acid.” NCT02605122

ampicillin 2g IV every 6hours for 48 hours, followed by erythromycin 250mg every 6hours for 5days” NCT03473210

“Day 1: Oral Azithromycin 1 g once and intravenous Ampicillin 2 g every 6 hours” NCT06917157

“Intravenous antibiotics: 1) Penicillins; ampicillin, piperacillin/tazobactam” NCT07236944

“Isolated strains sensitive to ampicillin: ampicillin 2g/6 or 8h (i.v)” NCT05394298

Ampicillin 12g/24h plus ceftriaxone 4g/12h continuous infusion.” NCT06423898

Ampicillin or Gentamicin or Cefotaxime” NCT02784821

Ampicillin/Amoxicillin” NCT05206500

Ampicillin 2g IV/6h” NCT02795949

AmpicillinNCT02099240

AmpicillinNCT03108690

NCT01994993

NCT02477423

NCT05156437

NCT01551394

NCT06396078

NCT02384200

NCT06440304

NCT00814905

NCT00002052

NCT07563504

NCT05977400

NCT07183462

NCT02865564

NCT07148622

NCT06406114

NCT03997266

NCT01433757

NCT01045902

NCT02424734

NCT04041791

NCT00879190

NCT05051163

NCT07326540

NCT01945450

NCT00021671

NCT07610486

NCT04202380

NCT02007603

NCT01189487

NCT02579161

NCT04290104

NCT02819570

NCT05469984

NCT01633294

NCT07113587

NCT00462020

NCT00887276

NCT05977868

NCT06494072

NCT02829060

NCT01678365

NCT03060473

NCT06368102

Known as Ampicillin/sulbactam “Beta lactam antibiotics for non-ESBL E. coli infections include preferred ceftriaxone or alternative cephalosporins (cefepime, ceftazidime), penicillins...” NCT07318584
14

“To compare the clinical effectiveness of two different sulbactam-based regimens (ampicillin-sulbactam versus cefoperazone-sulbactam) in the treatment of Acinetobacter baumannii...” NCT07118384

“Pregnant women (n=100) received IV Ampicillin/Sulbactam (AMS) (Unictam® 1500 mg) 30 minutes before CD and 12 hours after CD” NCT06048692

Ampicillin/sulbactam versus cefuroxime as antimicrobial prophylaxis for cesarean delivery: a randomized study.” PMID 21118502 Nov 2010

“Ampicillin-Sulbactam*” NCT02099240

NCT05922124

NCT06048692

NCT06448624

NCT01138852

NCT01888822

NCT00630513

NCT06336213

NCT05977868

NCT07118384

NCT00368537

Known as AMS “Pregnant women (n=100) received IV Ampicillin/Sulbactam (AMS) (Unictam® 1500 mg) 30 minutes before CD and 12 hours after CD” NCT06048692
Known as Unasyn ClinicalTrials.gov intervention name — accepted as the source's own label NCT00760006
1

NCT04198129

Action Inhibit “Sulbactam, a beta-lactamase inhibitor, is commercially available mainly in combination with β-lactam antibiotics” NCT07118384
Route Oral “second oral course of antibiotics consisting of metronidazole and ampicillin or placebo every 4 hours” NCT00021671