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
300 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 6 trials · 57 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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Stool test could replace endoscopy for h. pylori treatment decisions
Disease control Stopped earlyThis study tested whether a simple stool test can guide doctors in choosing the right antibiotics for H. pylori infections, avoiding the need for an invasive stomach camera procedure. The test detects the bacteria and checks for antibiotic resistance, aiming to improve cure rates…
Sponsor: Poitiers University Hospital • Aim: Disease control
Last updated Sep 03, 2026 00:00 UTC
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New syphilis combo treatment tested in HIV patients – trial cut short
Disease control Stopped earlyThis study looked at two different antibiotic combinations for treating early syphilis in people living with HIV. One group received a single shot of ceftriaxone plus a week of doxycycline pills, while the other got the standard single shot of penicillin plus the same doxycycline…
Phase 4 • Sponsor: National Taiwan University Hospital • Aim: Disease control
Last updated Jun 27, 2026 09:08 UTC
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Rapid test plus targeted antibiotic shows promise for tough infections in blood cancer patients
Disease control Stopped earlyThis study tested whether the antibiotic ceftolozane-tazobactam, guided by a rapid molecular test, could effectively treat serious Pseudomonas aeruginosa infections in people with blood cancers or those who had a stem cell transplant. The 17 participants received the antibiotic t…
Phase 4 • Sponsor: Weill Medical College of Cornell University • Aim: Disease control
Last updated Jun 27, 2026 08:12 UTC
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Scientists track HPV's secret life in young women
Knowledge-focused Stopped earlyThis study followed 190 young women to learn how the body handles new HPV infections. Researchers measured virus levels, immune cells, and other factors over time. The goal was to understand why some infections clear quickly while others persist. No treatment was given; this was …
Sponsor: University Hospital, Montpellier • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:53 UTC