TheraRadar
Landscape Infectious Disease

Bacterial Infections Clinical Trial Landscape

Data updated: May 20, 2026

172 clinical trials tracked since 2008

Bacterial Infections is being studied across 172 clinical trials registered since 2008, with 26 programs currently active. The competitive pipeline includes 5 active Phase 3 trials, 8 active Phase 2 trials, and 4 active Phase 1 trials. Top industry sponsors include Pfizer, Qpex Biopharma, Inc., CanSino Biologics Inc..

26 active
/
172 total (since 2008)
4
Phase 1 Active
78 total
8
Phase 2 Active
36 total
5
Phase 3 Active
35 total
10
Phase 4 Active
32 total

Top Industry Sponsors

Sorted by active Active Done Failed
Pfizer 2 7 2
Qpex Biopharma, Inc. 1 8 0
CanSino Biologics Inc. 1 2 0
Grifols Therapeutics LLC 1 0 0
Bausch Health Americas, Inc. 1 0 0

+ 10 more sponsors — see full table below

Featured Phase 3 Trials

NCT06592586 ACTIVE NOT RECRUITING
A Follow-up Trial of GBS-NN/NN2 Vaccine in Healthy Pregnant Women
Minervax ApS n=338
NCT05645107 RECRUITING
A Study to Evaluate Efficacy, Safety, and PK of XEMBIFY®+Standard Medical Treatment (SMT) Compared to Placebo+SMT to Prevent Infections in Participants With HGG and Recurrent or Severe Infections Associated With B-cell Chronic Lymphocytic Leukemia, Multiple Myeloma, and Non-Hodgkin Lymphoma
Grifols Therapeutics LLC n=386
NCT07017777 RECRUITING
A Study to Evaluate the Immunogenicity and Safety of 13-valent Pneumococcal Conjugate Vaccine (PCV13i) in Healthy Infants Aged 2 Months (Minimum 6 Weeks)
CanSino Biologics Inc. n=600
NCT03969901 COMPLETED
Safety, Tolerability, Efficacy and Pharmacokinetics of Imipenem/Cilastatin/Relebactam (MK-7655A) in Pediatric Participants With Gram-negative Bacterial Infection (MK-7655A-021)
Merck Sharp & Dohme LLC n=115
NCT03925480 COMPLETED
Preventing Young Infant Infections Using Azithromycin in Labour (PreYIAL) Trial
Murdoch Childrens Research Institute n=2,110

+ 30 more Phase 3 trials — see full database below

Bacterial Infections — Trials Started by Year (last 10 years)

2016
9
2017
8
2018
7
2019
7
2020
9
2021
14
2022
6
2023
12
2024
9
2025
7
2026
6

TheraRadar.com

Full Trial Database

Complete sponsor table, every trial across all phases, plus competitive analytics. Sortable, filterable, exportable for Pro users.

Top Sponsors (all-time)

Pfizer
11
Qpex Biopharma, Inc.
9
CanSino Biologics Inc.
3
Grifols Therapeutics LLC
1
Bausch Health Americas, Inc.
1
Vasomune Therapeutics, Inc.
1
Joincare Pharmaceutical Group Industry Co., Ltd
1
Saptalis Pharmaceuticals LLC
1
Rempex (a wholly owned subsidiary of Melinta Therapeutics, LLC)
1
Merck
7

Active Trials by Phase

Phase 1
4
Phase 2
8
Phase 3
5
Phase 4
10

Enrollment Size Distribution

1-50
75
51-200
52
201-500
20
501-1k
12
1k+
8

All Industry Sponsors

Sorted by active Active Done Failed
Pfizer 2 7 2
Qpex Biopharma, Inc. 1 8 0
CanSino Biologics Inc. 1 2 0
Grifols Therapeutics LLC 1 0 0
Bausch Health Americas, Inc. 1 0 0
Vasomune Therapeutics, Inc. 1 0 0
Joincare Pharmaceutical Group Industry Co., Ltd 1 0 0
Saptalis Pharmaceuticals LLC 1 0 0
Rempex (a wholly owned subsidiary of Melinta Therapeutics, LLC) 1 0 0
Merck 0 7 0
Trius Therapeutics LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) 0 5 0
Melinta Therapeutics, Inc. 0 5 0
Evopoint Biosciences Inc. 0 4 0
Tetraphase Pharmaceuticals, Inc 0 4 0
MCM Vaccines B.V. 0 4 0
NCT06592586 ACTIVE NOT RECRUITING
A Follow-up Trial of GBS-NN/NN2 Vaccine in Healthy Pregnant Women
Minervax ApS n=338
NCT05645107 RECRUITING
A Study to Evaluate Efficacy, Safety, and PK of XEMBIFY®+Standard Medical Treatment (SMT) Compared to Placebo+SMT to Prevent Infections in Participants With HGG and Recurrent or Severe Infections Associated With B-cell Chronic Lymphocytic Leukemia, Multiple Myeloma, and Non-Hodgkin Lymphoma
Grifols Therapeutics LLC n=386
NCT07503600 NOT YET RECRUITING
The Effect of Adjunctive Melatonin With Colistin in Patients With Multidrug-Resistant Gram-Negative Bacterial Infections
Ain Shams University n=70
NCT07017777 RECRUITING
A Study to Evaluate the Immunogenicity and Safety of 13-valent Pneumococcal Conjugate Vaccine (PCV13i) in Healthy Infants Aged 2 Months (Minimum 6 Weeks)
CanSino Biologics Inc. n=600
NCT06444802 NOT YET RECRUITING
Model-informed Precision Dosing for Linezolid
University of Hamburg-Eppendorf n=28
NCT03969901 COMPLETED
Safety, Tolerability, Efficacy and Pharmacokinetics of Imipenem/Cilastatin/Relebactam (MK-7655A) in Pediatric Participants With Gram-negative Bacterial Infection (MK-7655A-021)
Merck Sharp & Dohme LLC n=115
NCT03925480 COMPLETED
Preventing Young Infant Infections Using Azithromycin in Labour (PreYIAL) Trial
Murdoch Childrens Research Institute n=2,110
NCT03896685 COMPLETED
Evaluating Newly Approved Drugs in Combination Regimens for Multidrug-Resistant TB With Fluoroquinolone Resistance (endTB-Q)
Médecins Sans Frontières, France n=323
NCT02814916 COMPLETED
Dalbavancin for the Treatment of Acute Bacterial Skin and Skin Structure Infections in Children, Known or Suspected to be Caused by Susceptible Gram-positive Organisms, Including MRSA
AbbVie n=199
NCT04841369 COMPLETED
Phase III Clinical Trial of a Candidate PCV13 in Healthy People Aged 6 Weeks and Above (PICTPCV13i)
CanSino Biologics Inc. n=3,420
NCT03580044 TERMINATED
Efficacy, Safety, and Tolerability of ATM-AVI in the Treatment of Serious Infection Due to MBL-producing Gram-negative Bacteria
Pfizer n=15
NCT04847921 TERMINATED
Substance Use Disorder (SUD)-Associated Infections' Treatment With Dalbavancin ENabling OUtpatient Transition
University of Colorado, Denver n=11
NCT05689229 COMPLETED
Aerosolized Versus Intravenous Colistin-based Antimicrobial Regimens in Hospitalized COVID-19 Patients With Bacterial Coinfection: A Randomized Controlled Trial
Beni-Suef University n=128
NCT01817075 COMPLETED
Chlorhexidine Gluconate Cleansing in Preventing Central Line Associated Bloodstream Infection and Acquisition of Multi-drug Resistant Organisms in Younger Patients With Cancer or Undergoing Donor Stem Cell Transplant
Children's Oncology Group n=177
NCT01371656 COMPLETED
Levofloxacin in Preventing Infection in Young Patients With Acute Leukemia Receiving Chemotherapy or Undergoing Stem Cell Transplantation
Children's Oncology Group n=624
NCT01341639 COMPLETED
Safety, Tolerability, and Immunogenicity of V419 in Healthy Infants When Given at 2, 3, 4 and 12 Months (V419-007)
MCM Vaccines B.V. n=1,250
NCT01480258 COMPLETED
Safety, Tolerability, and Immunogenicity of V419 in Healthy Infants When Given at 2, 4, and 11 to 12 Months (V419-008)
MCM Vaccines B.V. n=1,315
NCT01553279 COMPLETED
Immunogenicity and Safety of V419 (PR51) in Combination With MCC in Infants and Toddlers (V419-011)
MCM Vaccines B.V. n=284
NCT02378480 COMPLETED
Omadacycline Versus Linezolid for the Treatment of ABSSSI (EudraCT #2013-003644-23)
Paratek Pharmaceuticals Inc n=655
NCT01839188 COMPLETED
Spanish Mixed HEXA/PENTA/HEXA Schedule (V419-010)
MCM Vaccines B.V. n=385
NCT02753387 COMPLETED
Effect of Oral Preparation on Bacterial Colonization of the Pharyngeal Mucosa in Surgery of Head and Neck Cancer
Rennes University Hospital n=80
NCT02877927 COMPLETED
Oral Omadacycline vs. Oral Linezolid for the Treatment of ABSSSI
Paratek Pharmaceuticals Inc n=735
NCT01337167 COMPLETED
Safety, Tolerability, and Immunogenicity of V419 Given Concomitantly With Prevnar 13™ and RotaTeq™ (V419-005)
Merck Sharp & Dohme LLC n=1,473
NCT01340937 COMPLETED
A Study of V419 Given Concomitantly With Prevnar 13™ and RotaTeq™ (V419-006)
Merck Sharp & Dohme LLC n=2,808
NCT02452047 COMPLETED
Efficacy and Safety of Imipenem+Cilastatin/Relebactam (MK-7655A) Versus Colistimethate Sodium+Imipenem+Cilastatin in Imipenem-Resistant Bacterial Infection (MK-7655A-013)
Merck Sharp & Dohme LLC n=50
NCT01421511 COMPLETED
TR-701 FA vs Linezolid for the Treatment of Acute Bacterial Skin and Skin Structure Infections
Trius Therapeutics LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) n=666
NCT01170221 COMPLETED
TR-701 FA vs. Linezolid for the Treatment of Acute Bacterial Skin and Skin Structure Infections.
Trius Therapeutics LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) n=667
NCT03124199 COMPLETED
Rifaximin Associated With Classic Triple Therapy for the Eradication of Helicobacter Pylori Infection
Fundación de Investigación Biomédica - Hospital Universitario de La Princesa n=40
NCT01984684 COMPLETED
Delafloxacin vs Vancomycin and Aztreonam for the Treatment of Acute Bacterial Skin and Skin Structure Infections
Melinta Therapeutics, Inc. n=850
NCT01811732 COMPLETED
Delafloxacin Versus Vancomycin and Aztreonam for the Treatment of Acute Bacterial Skin and Skin Structure Infections
Melinta Therapeutics, Inc. n=660
NCT01839175 COMPLETED
Concomitant Administration of a New Hexavalent Vaccine With a Meningococcal Serogroup C Conjugate Vaccine in Healthy Infants During Primary Series Immunisation Followed by Booster Vaccination
Sanofi Pasteur, a Sanofi Company n=350
NCT02066402 COMPLETED
Efficacy and Safety of Intravenous to Oral 6-Day Tedizolid Phosphate vs. Intravenous to Oral 10-Day Linezolid in Patients With Acute Bacterial Skin and Skin Structure Infection (ABSSSI)
Bayer n=598
NCT02361866 COMPLETED
To Evaluate the Effectiveness(Immunogeneicity) and Safety of 'GC1107' Administered Intramuscularly in Healthy Adults
Green Cross Corporation n=376
NCT01402713 COMPLETED
To Evaluate the Effectiveness(Immunogenicity) and Safety of 'GC1107' Administered Intramuscularly in Healthy Children
Green Cross Corporation n=311
NCT01608815 COMPLETED
Study of a Single Dose of SP093 Typhoid Vi Polysaccharide Vaccine in Japanese Subjects
Sanofi Pasteur, a Sanofi Company n=200

Full Bacterial Infections Pipeline

Every sponsor, every trial across Phase 1–4. Sortable, filterable, exportable.

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Data: ClinicalTrials.gov · Trials registered 2008 onwards · Industry sponsors only