Gram-negative bacterial infections
MONDO:0021678Infections caused by bacteria that show up as pink (negative) when treated by the gram-staining method.
Also known as: bacterial infection, gram-negative, bacterial infections, gram negative, bacterial infections, gram-negative, bacterial infections, gramme negative, gram negative bacterial infections, gram-negative bacterial infection, gramme negative bacterial infections, infection, gram-negative bacterial
301 clinical trials for this condition and its sub-types, 33 tagged with Gram-negative bacterial infections itself.
Follow this condition to get notified about new trialsWhere it sits in the disease tree
Browse by category →Sub-types of Gram-negative bacterial infections
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Helicobacter pylori infectious disease 115 trials
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Treponema infectious disease 7 trials · 58 incl. sub-types
4 sub-types
- Syphilis 47 trials · 56 incl. sub-types Sub-types →
- Pinta disease 1 trial
- Syphilitic encephalitis 0 trials
- Syphilitic meningitis 0 trials
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Chlamydiaceae infections 1 trial · 55 incl. sub-types
1 sub-type
- Chlamydia infectious disease 34 trials · 55 incl. sub-types Sub-types →
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Bordetellosis 0 trials · 39 incl. sub-types
2 sub-types
- Pertussis 39 trials
- Bordetella parapertussis infectious disease 0 trials
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Moraxellaceae infectious disease 0 trials · 8 incl. sub-types
1 sub-type
- Acinetobacter infectious disease 8 trials
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Pneumonia caused by gram negative bacteria 5 trials · 7 incl. sub-types
2 sub-types
- Pneumonia caused by chlamydia 2 trials
- Rickettsial pneumonia 0 trials
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Rickettsiaceae infectious disease 0 trials · 4 incl. sub-types
3 sub-types
- Typhus 0 trials · 3 incl. sub-types Sub-types →
- Spotted fever 0 trials · 1 incl. sub-types Sub-types →
- Rickettsial pneumonia 0 trials
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Burkholderia infectious disease 0 trials · 3 incl. sub-types
3 sub-types
- Melioidosis 3 trials
- Cepacia syndrome 0 trials
- Glanders 0 trials
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Anaplasmataceae infectious disease 0 trials · 2 incl. sub-types
4 sub-types
- Ehrlichiosis 1 trial Sub-types →
- Human granulocytic anaplasmosis 1 trial
- Neorickettsia infectious disease 0 trials
- Sennetsu fever 0 trials
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Bartonellaceae infectious disease 0 trials · 1 incl. sub-types
1 sub-type
- Bartonellosis 0 trials · 1 incl. sub-types Sub-types →
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Bacteroidaceae infectious disease 0 trials
1 sub-type
- Bacteroides infectious disease 0 trials
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Fusobacteriaceae infectious disease 0 trials
1 sub-type
- Fusobacterium infectious disease 0 trials
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1 sub-type
- Syphilitic meningitis 0 trials
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Streptobacillus infectious disease 0 trials
1 sub-type
- Streptobacillary rat-bite fever 0 trials
Most studied deeper sub-types
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Could a sleep hormone help fight superbugs?
Disease control Not yet recruitingThis study tests whether adding melatonin to the strong antibiotic colistin helps patients with multidrug-resistant bacterial infections. These infections are hard to treat and often deadly. The trial will give 70 adults either melatonin or a placebo alongside their regular treat…
Phase 3 • Sponsor: Ain Shams University • Aim: Disease control
Last updated Jun 27, 2026 12:02 UTC
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Blood cancer patients may need higher antibiotic doses to beat superbugs
Knowledge-focused Not yet recruitingThis study looks at whether the standard dose of the antibiotic ceftazidime-avibactam reaches high enough levels in the blood of people with blood cancers or those who have had a stem cell transplant. These patients are at high risk for severe infections from drug-resistant bacte…
Sponsor: Sizhou Feng • Aim: Knowledge-focused
Last updated Jul 16, 2026 00:00 UTC
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New test could spot superbug resistance faster
Knowledge-focused Not yet recruitingThis study looks at a simpler way to detect resistance to colistin, a last-resort antibiotic, in multidrug-resistant bacteria. Researchers will collect 90 samples from hospitalized patients and compare a disk test to the standard method. They will also check for resistance genes …
Sponsor: Assiut University • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:00 UTC
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Are ICU patients getting the right antibiotic dose? new study aims to find out
Knowledge-focused Not yet recruitingThis study looks at whether standard antibiotic doses are effective for ICU patients on ECMO (heart-lung support) or kidney dialysis. Researchers will measure drug levels in 40 adults with serious infections. The goal is to see if dosing adjustments are needed to avoid under- or …
Sponsor: Fondazione IRCCS Policlinico San Matteo di Pavia • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:04 UTC
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New rapid test could help ICU doctors pick the right antibiotic hours faster
Knowledge-focused Not yet recruitingThis study tests a new rapid diagnostic system that can tell doctors which antibiotic will work against a blood infection in 4-6 hours, instead of the usual 18-24 hours. Researchers want to see if this faster information helps ICU doctors change to a better antibiotic sooner. The…
Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:52 UTC