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Bacterial pneumonia
MONDO:0004652Acute infection of the lung parenchyma caused by bacteria (e.g., Streptococcus pneumoniae, Haemophilus influenzae, Chlamydia pneumoniae, Mycoplasma pneumoniae, and Legionella pneumophila). Signs and symptoms include productive cough, fever, chills, shortness of breath, and chest pain.
Also known as: Bacteria caused pneumonia, Bacteria pneumonia, pneumonia due to other gram-negative bacteria
111 clinical trials for this condition and its sub-types, 28 tagged with Bacterial pneumonia itself.
Follow this condition to get notified about new trialsWhere it sits in the disease tree
Browse by category →Sub-types of Bacterial pneumonia
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Streptococcal pneumonia 16 trials
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Mycoplasma pneumoniae pneumonia 9 trials
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Klebsiella pneumonia 7 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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Legionnaires' disease 2 trials
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Staphylococcal pneumonia 1 trial
1 sub-type
- Staphylococcus aureus pneumonia 1 trial
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Anaerobic pneumonia 0 trials
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New vaccine aims to shield older adults from pneumonia
Vaccine CompletedThis study tested a new vaccine called Pn-MAPS30plus to see if it is safe and helps the body fight pneumonia-causing bacteria. It involved 127 healthy adults aged 50 to 64. The vaccine is designed to protect against more types of the bacteria than current vaccines.
Phase 1 • Sponsor: GlaxoSmithKline • Aim: Vaccine
Last updated Jun 27, 2026 13:02 UTC
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New pneumonia vaccine shows promise in early trial
Vaccine CompletedThis early-stage trial tested a new 23-valent pneumococcal polysaccharide vaccine in 144 healthy people aged 2 and older. Participants received one dose of either the experimental or a control vaccine. The study checked for side effects and measured immune response through blood …
Phase 1 • Sponsor: Ab&B Bio-tech Co., Ltd.JS • Aim: Vaccine
Last updated Jun 27, 2026 08:08 UTC
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Massive study checks if pneumonia vaccine shields HIV patients
Vaccine CompletedThis completed study looked at how effective the Prevnar 13 (PCV13) vaccine is at preventing pneumonia and related infections in adults with HIV. Researchers analyzed health records of over 350,000 people with HIV to compare those who got the vaccine with those who did not. The g…
Sponsor: Pfizer • Aim: Vaccine
Last updated Jun 27, 2026 07:55 UTC
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Can a new antibiotic outperform standard care for pneumonia?
Disease control CompletedThis trial compares the antibiotic faropenem to a standard combination of co-amoxiclav and clarithromycin in adults with community-acquired bacterial pneumonia. Participants are randomly assigned to one of two treatment groups for seven days, then followed for four weeks. The stu…
Phase 4 • Sponsor: Dr. Md. Alimur Reza • Aim: Disease control
Last updated Aug 06, 2026 00:00 UTC
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Can a probiotic speed up pneumonia recovery in kids?
Disease control CompletedThis study tested whether a probiotic called WecProB could help children with mycoplasma pneumonia get better faster. Sixty children aged 6 months to 12 years took either the probiotic or a placebo. The main goal was to see if the probiotic reduced the amount of pneumonia-causing…
Sponsor: Wecare Probiotics Co., Ltd. • Aim: Disease control
Last updated Jun 27, 2026 09:09 UTC
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New rapid tests for respiratory infections put to the test in africa
Diagnosis CompletedThis study is testing new rapid tests (lateral flow and microfluidic devices) to detect respiratory infections in children and adults in Uganda, Ethiopia, and Senegal. Researchers want to see if these tests are accurate and easy to use in low-resource clinics. Participants with r…
Sponsor: Karolinska Institutet • Aim: Diagnosis
Last updated Sep 03, 2026 00:00 UTC
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New test aims to spot coronaviruses faster and more accurately
Diagnosis CompletedThis study is testing a new diagnostic panel called the BioFire ECoV Panel, designed to detect coronaviruses from leftover nose swab samples. Researchers will enroll 1,500 people and compare the panel's results to standard tests to see how accurate it is. The test is not being us…
Sponsor: BioFire Defense LLC • Aim: Diagnosis
Last updated Aug 29, 2026 00:00 UTC
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Simple blood test could slash antibiotic overuse for coughs and colds
Diagnosis CompletedThis study tested whether giving general practitioners a rapid C-reactive protein (CRP) test helps them decide when antibiotics are truly needed for patients with respiratory infections. 140 patients with symptoms like cough, fever, or sore throat took part. Doctors in the test g…
Sponsor: MSPU des 3 Provinces • Aim: Diagnosis
Last updated Jun 27, 2026 13:04 UTC
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New combo test aims to spot ventilator pneumonia faster
Diagnosis CompletedThis study looked at 173 adults on ventilators to see if combining advanced germ-detection tests with a patient's immune response can improve diagnosis of ventilator-associated pneumonia. Researchers compared several molecular tests and host-response markers to standard clinical …
Sponsor: Duke University • Aim: Diagnosis
Last updated Jun 27, 2026 12:25 UTC
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AI reads chest X-Rays to spot deadly ICU lung infections
Diagnosis CompletedThis study looked at whether an artificial intelligence (AI) tool can help doctors diagnose ventilator-associated pneumonia (a serious lung infection) in ICU patients. Researchers analyzed chest X-rays from 119 adults on breathing machines, comparing the AI's readings to doctors'…
Sponsor: Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital • Aim: Diagnosis
Last updated Jun 27, 2026 12:03 UTC
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Fingerstick test could help doctors skip unnecessary antibiotics
Diagnosis CompletedThis study looked at whether FebriDx, a rapid fingerstick test, can accurately tell bacterial from non-bacterial acute respiratory infections when used by people without lab training. Researchers compared results from untrained operators to trained ones in 800 patients with fever…
Sponsor: Lumos Diagnostics • Aim: Diagnosis
Last updated Jun 26, 2026 14:45 UTC
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New combo shot study: pneumonia vaccine plus flu jab shows promise in older adults
Prevention CompletedThis study tested a new pneumococcal vaccine (V116) given at the same time as the seasonal flu shot in 1,080 adults aged 50 and older. The goal was to see if giving both vaccines together is safe and produces a strong immune response. Results help determine whether combining thes…
Phase 3 • Sponsor: Merck Sharp & Dohme LLC • Aim: Prevention
Last updated Jun 27, 2026 07:55 UTC
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New vaccine AFX3772 aims to shield infants from pneumonia
Prevention CompletedThis study tested a new vaccine called AFX3772 in healthy infants about 2 months old. The goal was to see if it is safe and triggers a strong immune response against pneumococcal bacteria, which can cause pneumonia and other serious infections. Researchers compared AFX3772 with e…
Phase 2 • Sponsor: GlaxoSmithKline • Aim: Prevention
Last updated Jun 27, 2026 07:55 UTC
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Malawi shifts vaccine strategy to boost herd immunity against pneumonia
Prevention CompletedThis study in Blantyre, Malawi, compares two schedules of the pneumococcal conjugate vaccine (PCV13): the current 3-dose schedule without a booster (3+0) versus a 2-dose schedule with a booster at 9 months (2+1). The goal is to see if the booster reduces carriage of vaccine-type …
Sponsor: University of Liverpool • Aim: Prevention
Last updated Jun 26, 2026 13:52 UTC
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Could a simple saltwater spray ease your next cold?
Symptom relief CompletedThis study is testing a hypertonic seawater aerosol spray (a saltwater mist) to see if it helps relieve nasal symptoms, improve sleep, and thin mucus in people with colds, sinus infections, or similar upper respiratory infections. About 110 adults and children aged 2 and older wi…
Sponsor: Laboratoires Gilbert • Aim: Symptom relief
Last updated Jul 25, 2026 00:00 UTC
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Nose drops of pneumonia bacteria could pave way for better vaccines
Knowledge-focused CompletedThis study investigates how a specific strain of pneumococcus bacteria (serotype 3) colonizes the nose of healthy adults. Researchers will give volunteers nose drops containing the bacteria to see what dose leads to colonization and how long the bacteria stay before the immune sy…
Sponsor: Liverpool School of Tropical Medicine • Aim: Knowledge-focused
Last updated Jul 01, 2026 00:00 UTC
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Mapping the hidden germ: pneumococcus in healthy kids
Knowledge-focused CompletedThis study looks at how common pneumococcus bacteria are in the noses and throats of healthy Vietnamese children aged 6 months to 5 years. Researchers will take a simple swab and interview parents about factors like vaccination history, antibiotic use, and living environment. The…
Sponsor: Tam Anh Research Institute • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:01 UTC
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Pandemic shifts germ landscape: study reveals new patterns in respiratory infections
Knowledge-focused CompletedThis study looked at 537 patients with respiratory infection symptoms to see how the types of viruses and bacteria changed from the COVID-19 pandemic period to after it. Researchers used a special PCR test to detect multiple germs at once. The goal was to understand how pandemic …
Sponsor: Hisar Intercontinental Hospital • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:37 UTC
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Scientists crack the code of antibiotic-friendly superbug
Knowledge-focused CompletedThis study looked at 56 patients in a French hospital who had infections from a rare type of Klebsiella pneumoniae bacteria that can be treated with the common antibiotic amoxicillin. Researchers used genetic sequencing to understand why these bacteria are sensitive to amoxicilli…
Sponsor: Centre Hospitalier Universitaire de Nice • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:36 UTC
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Are hidden immune defects causing your recurring infections? new study investigates.
Knowledge-focused CompletedThis study looked for hidden immune system problems in adults who get frequent or severe bacterial infections, like pneumonia or meningitis. Researchers screened 120 adults aged 18-65 to see how many had an undiagnosed primary immunodeficiency. The goal was to find out if these c…
Sponsor: University Hospital, Lille • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:23 UTC
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New alert system aims to cut unnecessary antibiotics in pneumonia patients
Knowledge-focused CompletedThis study tested whether electronic alerts and structured messages from an antibiotic stewardship team could reduce antibiotic use in hospitalized patients with suspected pneumonia. 107 adults were enrolled, and those with test results suggesting viral infection were randomly as…
Sponsor: Jonathan Baghdadi • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:07 UTC
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New rapid test could help ICU doctors pick the right antibiotic faster
Knowledge-focused CompletedThis study tested whether a rapid test called Unyvero could help doctors choose the right antibiotic sooner for patients with pneumonia who are on breathing machines in the ICU. The test looks for bacteria and their resistance genes in just a few hours, compared to standard lab c…
Sponsor: University Hospital, Lille • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:04 UTC
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ICU antibiotic study reveals resistance risks
Knowledge-focused CompletedThis study examined whether giving ICU patients the same antibiotic they had before, versus a different one, affects the development of drug-resistant bacteria. Researchers looked at 197 adults with Gram-negative infections. The goal was to understand how antibiotic choice impact…
Sponsor: Methodist Health System • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:00 UTC
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New rapid test for respiratory infections put to the test in 3,200 people
Knowledge-focused CompletedThis study checked how accurate a new test (Xpert Expanded Respiratory Panel) is at finding respiratory infections. Researchers tested nose swabs from 3,200 people with symptoms and compared results to other tests. The goal was to see if the new test works well enough for routine…
Sponsor: Cepheid • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:00 UTC
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Expert advice slashes unnecessary antibiotic prescriptions in family clinics
Knowledge-focused CompletedThis study tested whether adding infectious disease experts to primary care teams helps reduce unnecessary antibiotic use. Over 1,300 patients from six clinics in Spain took part. Doctors in the expert-advised group could call or meet with specialists to discuss tricky cases. The…
Sponsor: Institut d'Investigació Biomèdica de Bellvitge • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:00 UTC
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New tool could spot tough pneumonia early
Knowledge-focused CompletedThis study created and tested a risk score called RESPIRE to predict whether a patient's pneumonia is caused by multidrug-resistant bacteria. Researchers looked at data from 300 adults with community-acquired pneumonia in the emergency department. The goal is to help doctors quic…
Sponsor: Azienda Ospedaliero-Universitaria Careggi • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:08 UTC
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New program aims to curb overuse of antibiotics in children
Knowledge-focused CompletedThis study tested a program to help doctors prescribe antibiotics more appropriately for common childhood infections like earaches, sore throats, and sinusitis. Over 1,000 doctors took part, receiving online training, personalized feedback on their prescribing habits, and support…
Sponsor: Children's Hospital of Philadelphia • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:03 UTC
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Personalized antibiotic dosing could save ICU pneumonia patients
Knowledge-focused CompletedThis completed study looked at 179 ICU patients with pneumonia to figure out the best doses of common antibiotics. Researchers took blood and lung fluid samples to measure how the drugs move through the body. The goal was to create personalized dosing plans that ensure enough ant…
Sponsor: The University of Queensland • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:00 UTC
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Colombian pneumonia study reveals key infection patterns
Knowledge-focused CompletedThis study looked at 688 adults hospitalized with pneumonia in 11 hospitals in Colombia to find out how many cases were caused by pneumococcal bacteria. Researchers also identified which bacterial strains were most common and whether current vaccines cover them. The goal is to he…
Sponsor: Universidad de la Sabana • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:12 UTC
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New model could spot dangerous pneumonia in kids before It's too late
Knowledge-focused CompletedThis study aimed to create a way for doctors to predict which children with Mycoplasma pneumonia might become severely ill. Researchers looked at data from 964 children to build and test a prediction model. The goal is to help doctors act faster and improve outcomes for kids at r…
Sponsor: Beijing Friendship Hospital • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:10 UTC
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New EHR tool helps nurses cut unnecessary antibiotic prescriptions
Knowledge-focused CompletedThis study tested a computer tool that helps nurses decide when antibiotics are needed for common respiratory infections like colds and sore throats. The tool, built into the electronic health record, calculates a patient's risk and suggests appropriate care. Researchers measured…
Sponsor: NYU Langone Health • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:08 UTC
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Toxin tied to deadly staph pneumonia under the microscope
Knowledge-focused CompletedThis completed study looked at 234 patients with severe staph pneumonia to see if a toxin called PVL makes the disease worse. Researchers compared survival rates between patients infected with PVL-producing bacteria and those without. They also collected blood samples to explore …
Sponsor: Hospices Civils de Lyon • Aim: Knowledge-focused
Last updated Jun 26, 2026 15:16 UTC
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Vitamin B3 study explores how body handles supplement during illness
Knowledge-focused CompletedThis completed study looked at how a special form of vitamin B3 (nicotinamide) is processed in 28 patients with low tryptophan levels due to respiratory infections or inflammatory bowel disease. Participants took either 500 mg or 1000 mg of the supplement daily for four weeks. Th…
Sponsor: University Hospital Schleswig-Holstein • Aim: Knowledge-focused
Last updated Jun 26, 2026 13:47 UTC