Respiratory tract infectious disorder
MONDO:0024355Invasion of the host RESPIRATORY SYSTEM by microorganisms, usually leading to pathological processes or diseases.
Also known as: respiratory infection, upper, upper respiratory infections, upper respiratory tract infections, infection, respiratory tract, infections, respiratory, infections, respiratory tract, infections, upper respiratory, infections, upper respiratory tract
1198 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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New RSV vaccine for infants shows promise in major trial
⭐️ VACCINE ⭐️ TerminatedThis study tested an experimental RSV vaccine given to healthy infants at 6 and 12 months old alongside their regular vaccines. The goal was to see if the RSV vaccine still worked well when given at the same time. About 2,200 babies took part, but the study was stopped early.
Phase: PHASE3 • Sponsor: Sanofi Pasteur, a Sanofi Company • Aim: ⭐️ VACCINE ⭐️
Last updated Jun 27, 2026 09:01 UTC
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RSV nasal vaccine trial for kids halted – what we know
⭐️ VACCINE ⭐️ TerminatedThis phase 3 study tested an intranasal RSV vaccine in about 6,300 healthy children aged 6 to 22 months. The goal was to see if two doses of the nasal spray could prevent lower respiratory tract infections caused by RSV. The trial was terminated early, so final results are not av…
Phase: PHASE3 • Sponsor: Sanofi Pasteur, a Sanofi Company • Aim: ⭐️ VACCINE ⭐️
Last updated Jun 27, 2026 09:01 UTC
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Could a Lower-Dose RSV vaccine protect babies just as well?
⭐️ VACCINE ⭐️ TerminatedThis study tested a nasal spray RSV vaccine in nearly 1,000 healthy infants and toddlers aged 6 to 22 months. The goal was to see if a lower dose works as well as the standard dose and to check safety across different doses. The trial was ended early, so final results are not ava…
Phase: PHASE3 • Sponsor: Sanofi Pasteur, a Sanofi Company • Aim: ⭐️ VACCINE ⭐️
Last updated Jun 27, 2026 09:01 UTC
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Could a simple pill tame RSV? new trial tests obeldesivir
Disease control TerminatedThis phase 2 study tests whether an oral antiviral pill called obeldesivir can safely shorten RSV symptoms in adults who are not hospitalized but are at higher risk for severe disease (e.g., those aged 60+ or with chronic lung conditions). Participants take the pill or a placebo,…
Phase: PHASE2 • Sponsor: Gilead Sciences • Aim: Disease control
Last updated Jul 02, 2026 00:00 UTC
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Placenta cells tested as COVID fighter – but trial stopped early
Disease control TerminatedThis early-phase trial tested a new therapy called CYNK-001, which uses natural killer cells from the placenta to fight COVID-19. It enrolled only 7 adults with moderate COVID-19. The study was terminated early, so we have limited information on safety and effectiveness.
Phase: PHASE1, PHASE2 • Sponsor: Celularity Incorporated • Aim: Disease control
Last updated Jun 28, 2026 00:00 UTC
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New oral pill aims to fight RSV in adults
Disease control TerminatedThis study tests an oral drug called AK0529 (Ziresovir) in adults aged 18 to 75 with respiratory syncytial virus (RSV) infection. Participants receive either the drug or a placebo, and researchers measure how well symptoms improve and track any side effects. The goal is to see if…
Phase: PHASE2 • Sponsor: Shanghai Ark Biopharmaceutical Co., Ltd. • Aim: Disease control
Last updated Jun 27, 2026 14:01 UTC
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New hope for stubborn lung infection? trial of epetraborole begins, then stops
Disease control TerminatedThis study tested an oral drug called epetraborole for people with a tough-to-treat lung infection called MAC lung disease. The trial aimed to see if adding epetraborole to standard treatment could improve symptoms and clear the infection. However, the study was terminated early,…
Phase: PHASE2, PHASE3 • Sponsor: AN2 Therapeutics, Inc • Aim: Disease control
Last updated Jun 27, 2026 13:07 UTC
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Heart drug fails to prove benefit for lung failure patients in early-stop trial
Disease control TerminatedThis study tested whether giving the heart medication metoprolol through a vein could help people with severe lung failure (ARDS) in the ICU. The goal was to see if it helped them breathe without a machine for more days. However, the trial was stopped early and only 14 people too…
Phase: PHASE3 • Sponsor: Consorcio Centro de Investigación Biomédica en Red (CIBER) • Aim: Disease control
Last updated Jun 27, 2026 13:02 UTC
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Carbon monoxide as medicine? tiny trial tests inhaled gas for lung failure
Disease control TerminatedThis early-phase trial tested whether inhaling low doses of carbon monoxide could be safe for people with severe lung injury caused by sepsis. Only 5 participants were enrolled before the study was stopped early. The goal was to see if a personalized dosing formula could safely a…
Phase: PHASE1 • Sponsor: Brigham and Women's Hospital • Aim: Disease control
Last updated Jun 27, 2026 12:37 UTC
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Promising fungal infection treatment study halted early
Disease control TerminatedThis study tested whether adding an inhaled medication (PC945) to standard antifungal drugs could help people with a severe, hard-to-treat lung fungal infection called invasive pulmonary aspergillosis. The trial aimed to see if the combination improved survival and response by da…
Phase: PHASE3 • Sponsor: Pulmocide Ltd • Aim: Disease control
Last updated Jun 27, 2026 12:25 UTC
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Could a simple gas stop COVID-19 from getting worse?
Disease control TerminatedThis study tested whether breathing in nitric oxide gas could keep mild-to-moderate COVID-19 from becoming severe. Researchers enrolled 62 hospitalized adults who were breathing on their own. The goal was to see if the gas reduced the need for a breathing tube. The trial was stop…
Phase: PHASE2 • Sponsor: Massachusetts General Hospital • Aim: Disease control
Last updated Jun 27, 2026 12:00 UTC
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Experimental drug auxora tested in critical COVID-19 lung patients
Disease control TerminatedThis small Phase 2 trial tested an experimental drug called Auxora in 10 patients with critical COVID-19 pneumonia who were on ventilators. The goal was to see how the drug affected immune cells in the lungs and to check its safety. The study was terminated early, so results are …
Phase: PHASE2 • Sponsor: CalciMedica, Inc. • Aim: Disease control
Last updated Jun 27, 2026 11:03 UTC
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New hope for lung scarring? trial of GSK3915393 cut short
Disease control TerminatedThis study tested a new medicine, GSK3915393, in 158 people with idiopathic pulmonary fibrosis (IPF), a chronic lung disease that causes scarring and breathing difficulty. The goal was to see if the drug could slow lung function decline compared to a placebo. The trial was termin…
Phase: PHASE2 • Sponsor: GlaxoSmithKline • Aim: Disease control
Last updated Jun 27, 2026 11:01 UTC
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New drug fails to show benefit in severe COVID-19 pneumonia trial
Disease control TerminatedThis study tested whether adding reparixin to standard care could prevent death or the need for a breathing machine in 414 hospitalized adults with COVID-19 or other pneumonia. The trial was stopped early. Researchers compared reparixin to a placebo to see if it reduced severe ou…
Phase: PHASE3 • Sponsor: Dompé Farmaceutici S.p.A • Aim: Disease control
Last updated Jun 27, 2026 09:07 UTC
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Experimental drug vixarelimab tested for two scarring lung diseases
Disease control TerminatedThis study tested the drug vixarelimab against a placebo in people with idiopathic pulmonary fibrosis (IPF) or systemic sclerosis-associated interstitial lung disease (SSc-ILD). The goal was to see if it could preserve lung function over 52 weeks. The trial was terminated early, …
Phase: PHASE2 • Sponsor: Genentech, Inc. • Aim: Disease control
Last updated Jun 27, 2026 09:03 UTC
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Common diabetes and acne drugs studied for head and neck cancer treatment
Disease control TerminatedThis study tested whether metformin (a diabetes drug) and doxycycline (an antibiotic) could help treat head and neck cancer when taken before surgery. The trial aimed to see if these drugs could change certain proteins in the tumor's supportive tissue. Only 7 people took part bef…
Phase: PHASE2 • Sponsor: Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University • Aim: Disease control
Last updated Jun 27, 2026 09:00 UTC
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Rapid test plus targeted antibiotic shows promise for tough infections in blood cancer patients
Disease control TerminatedThis 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: PHASE4 • Sponsor: Weill Medical College of Cornell University • Aim: Disease control
Last updated Jun 27, 2026 08:12 UTC
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Lung fibrosis drug study halted early
Disease control TerminatedThis study tested new single treatments for idiopathic pulmonary fibrosis (IPF), a lung disease that causes scarring and makes breathing hard. It included 46 adults aged 40 and older with mild to moderate IPF. The main goal was to see if the treatments improved lung function, mea…
Phase: PHASE2 • Sponsor: Novartis Pharmaceuticals • Aim: Disease control
Last updated Jun 27, 2026 08:10 UTC
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Experimental drug aims to keep viral pneumonia patients out of hospital
Disease control TerminatedThis Phase 2 trial tested the drug silmitasertib (CX-4945) plus standard care in adults with pneumonia caused by COVID-19 or influenza. The goal was to see if the drug could reduce the need for hospitalization or prevent death. The study planned to enroll 120 people but was termi…
Phase: PHASE2 • Sponsor: Senhwa Biosciences, Inc. • Aim: Disease control
Last updated Jun 27, 2026 08:09 UTC
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Early antibiotics in ICU aspiration: small trial halted before answers
Disease control TerminatedThis study tested whether giving antibiotics early to ICU patients who may have inhaled stomach contents could prevent pneumonia and improve recovery. Only 5 patients were enrolled before the trial was stopped early. The results are too limited to draw any conclusions about wheth…
Phase: PHASE4 • Sponsor: UConn Health • Aim: Disease control
Last updated Jun 27, 2026 08:07 UTC
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New RSV drug tested in kids – but trial halted early
Disease control TerminatedThis study tested the safety and dosing of sisunatovir, an experimental antiviral drug, in infants and children up to 5 years old with RSV lower respiratory tract infection. Ten participants received either the drug or a placebo. The goal was to find the right dose for future stu…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 08:07 UTC
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Promising IPF drug trial halted midway
Disease control TerminatedThis study tested an experimental drug called HZN-825 in people with idiopathic pulmonary fibrosis (IPF), a lung disease that causes scarring and makes breathing hard. The trial aimed to see if the drug could slow the decline in lung function over a year. About 153 adults with IP…
Phase: PHASE2 • Sponsor: Amgen • Aim: Disease control
Last updated Jun 27, 2026 08:01 UTC
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New inhaled drug aimed at stubborn lung infection shows promise, but trial halted early
Disease control TerminatedThis phase 3 study tested an inhaled form of the antibiotic clofazimine added to standard therapy for people with MAC lung disease that did not respond to previous treatment. The goal was to see if the drug could clear the infection from sputum cultures and improve quality of lif…
Phase: PHASE3 • Sponsor: Mannkind Corporation • Aim: Disease control
Last updated Jun 27, 2026 07:57 UTC
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RSV pill study halted early: what we know
Disease control TerminatedThis study tested an oral drug called sisunatovir for treating RSV in adults who were not hospitalized but had a high risk of severe illness. Participants took either the drug or a placebo for 5 days. The study was terminated early, so results are limited.
Phase: PHASE2, PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 07:56 UTC
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Experimental cell therapy targets deadly childhood brain cancer
Disease control TerminatedThis early-phase trial tested a new immunotherapy approach for children with DIPG, a rare and aggressive brain stem tumor. After standard radiation and chemotherapy, patients received special vaccines and immune cells designed to attack the tumor. The study was small (11 particip…
Phase: PHASE1 • Sponsor: University of Florida • Aim: Disease control
Last updated Jun 27, 2026 07:55 UTC
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New hope against deadly molds? early trial cut short
Disease control TerminatedThis study tested a drug called fosmanogepix in 21 adults with invasive mold infections (like Aspergillus or rare molds) who had few other options. The trial was stopped early, so we have limited data on how well it works or its safety.
Phase: PHASE2 • Sponsor: Basilea Pharmaceutica • Aim: Disease control
Last updated Jun 26, 2026 17:54 UTC
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Super-Sized flu shot for tots? study tests higher dose
Prevention TerminatedThis study tested whether a high-dose flu vaccine works better than the standard dose in preventing the flu in children aged 6 to 35 months. About 100 children took part, receiving either the high-dose or standard-dose shot. The study was stopped early, so results are limited.
Phase: PHASE3 • Sponsor: Sanofi Pasteur, a Sanofi Company • Aim: Prevention
Last updated Jun 27, 2026 08:06 UTC
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Super-Sized flu shot tested for Seniors' heart and lung protection
Prevention TerminatedThis study compared a high-dose flu vaccine to the standard-dose shot in over 33,000 adults aged 65 and older. The goal was to see if the high-dose version could better prevent hospitalizations for heart and lung problems. The trial was terminated early, so the full picture is no…
Phase: PHASE3 • Sponsor: Sanofi Pasteur, a Sanofi Company • Aim: Prevention
Last updated Jun 26, 2026 17:31 UTC
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Mental health sessions may boost vaccine uptake in latinx communities
Prevention TerminatedThis study tested whether adding vaccine discussions to routine behavioral health visits could reduce hesitancy and increase COVID-19 and flu shots among Latinx adults with mental illness. Clinicians used motivational interviewing and could offer a warm handoff to a nurse for vac…
Phase: NA • Sponsor: Boston College • Aim: Prevention
Last updated Jun 26, 2026 17:00 UTC
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Egg-Free flu vaccine tested in kids: could it be just as good?
Prevention TerminatedThis study compared a newer recombinant flu vaccine (RIV4, also called Supemtek or Flublok Quadrivalent) to the standard egg-based flu vaccine in 366 children aged 3 to 8 years. The goal was to see if the recombinant vaccine produced a similar immune response and was as safe. The…
Phase: PHASE3 • Sponsor: Sanofi Pasteur, a Sanofi Company • Aim: Prevention
Last updated Jun 26, 2026 14:42 UTC
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RSV drug trial for kids under 5 halted early – only 4 children enrolled
Symptom relief TerminatedThis study tested an oral antiviral drug called obeldesivir in children from birth to under 5 years old who had RSV infection. The goal was to see if the drug is safe and helps reduce symptoms faster. However, the trial was stopped early and only enrolled 4 participants, so the r…
Phase: PHASE2 • Sponsor: Gilead Sciences • Aim: Symptom relief
Last updated Jun 27, 2026 13:04 UTC
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Vitamin c trial for elderly pneumonia fizzles out
Symptom relief TerminatedThis study looked at whether giving vitamin C to elderly patients hospitalized with pneumonia could improve their breathing and daily function. Only 9 people took part before the study was stopped early. Because it was so small, we can't say if vitamin C helps or not.
Phase: PHASE2 • Sponsor: University Hospital, Bordeaux • Aim: Symptom relief
Last updated Jun 27, 2026 12:36 UTC
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Salt water gargle study for COVID-19 fizzles out early
Symptom relief TerminatedThis study tested whether rinsing the nose and gargling with salt water could help people with suspected or confirmed COVID-19 feel better faster. Only 16 adults in the UK took part before the study was stopped early. The goal was to see if this simple home remedy could reduce ho…
Phase: NA • Sponsor: University of Edinburgh • Aim: Symptom relief
Last updated Jun 27, 2026 09:09 UTC
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New pill aims to quiet debilitating cough in lung scarring disease
Symptom relief TerminatedThis study tested an experimental drug called BI 1839100 in adults with idiopathic pulmonary fibrosis (IPF) or progressive pulmonary fibrosis (PPF) who have a chronic cough. Participants took different doses of the drug or a placebo for 12 weeks. The goal was to see if the drug c…
Phase: PHASE2 • Sponsor: Boehringer Ingelheim • Aim: Symptom relief
Last updated Jun 27, 2026 08:12 UTC
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Anesthesia drug study halted after just 3 patients
Knowledge-focused TerminatedThis study aimed to see if skipping a type of muscle relaxant during general anesthesia could lower the risk of serious lung complications in high-risk surgery patients. The trial was terminated early after enrolling only 3 participants, so no meaningful conclusions can be drawn.…
Phase: PHASE4 • Sponsor: Beth Israel Deaconess Medical Center • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:03 UTC
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Lung cancer study aims to predict dangerous lung inflammation
Knowledge-focused TerminatedThis study followed 83 people with advanced non-small cell lung cancer who were starting standard treatments. The goal was to collect information to help develop a digital tool that can spot early signs of pneumonitis/ILD, a serious lung inflammation that can occur as a side effe…
Sponsor: AstraZeneca • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:29 UTC
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Scientists hunt for genetic and environmental clues in rare lung disease
Knowledge-focused TerminatedThis study aimed to describe the features and natural history of idiopathic interstitial pneumopathy, a group of rare lung diseases, in both children and adults. Researchers planned to collect data from 1,600 participants, including medical history, imaging, and genetic tests, to…
Sponsor: Institut National de la Santé Et de la Recherche Médicale, France • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:08 UTC
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New lung camera could replace needle biopsies
Knowledge-focused TerminatedThis study aimed to see if a tiny camera on a thin tube (bronchoscopy) could help doctors diagnose diffuse lung diseases without needing a surgical lung biopsy. The camera takes live microscopic images of the air sacs. The study was stopped early, but it involved 38 adults with c…
Phase: NA • Sponsor: University Hospital, Rouen • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:08 UTC
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Sleep apnea machine tested for IPF lung health – but study stopped early
Knowledge-focused TerminatedThis study looked at whether using a CPAP machine at night could reduce abnormal acid reflux and lung inflammation in people with idiopathic pulmonary fibrosis (IPF) who also have sleep apnea. Only 7 people enrolled before the study was terminated early. The goal was to measure c…
Phase: NA • Sponsor: University of Arizona • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:00 UTC
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Scientists investigate why ventilators may worsen lung infections
Knowledge-focused TerminatedThis study looked at how mechanical ventilation (breathing machines) affects the energy centers (mitochondria) of immune cells in patients with severe lung infections and acute respiratory distress syndrome (ARDS). Researchers aimed to understand why some patients get worse despi…
Sponsor: Centre Hospitalier Universitaire Dijon • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:01 UTC
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Flu vaccine study halted after just 2 volunteers
Knowledge-focused TerminatedThis study aimed to compare how the immune system responds to two different seasonal flu vaccines given at the same time. Healthy adults aged 18-49 who had not received a flu shot in at least three years were eligible. The study was terminated early and only enrolled 2 participan…
Phase: EARLY_PHASE1 • Sponsor: Washington University School of Medicine • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:01 UTC
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Sticker shock: simple reminder may cut unnecessary IV antibiotic use
Knowledge-focused TerminatedThis study tested whether placing a reminder sticker on the charts of adult hospital patients receiving IV fluoroquinolone antibiotics would encourage doctors to switch them to oral pills sooner. The trial involved 168 patients at a single hospital in Thailand. Unfortunately, the…
Phase: NA • Sponsor: Mahidol University • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:12 UTC
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Scientists probe immune cells in pneumonia to unlock ARDS secrets
Knowledge-focused TerminatedThis study looked at how certain immune cells, called non-conventional T cells, behave in patients with severe pneumonia and acute respiratory distress syndrome (ARDS). Researchers collected blood and airway samples from 258 intensive care unit patients to track these cells over …
Sponsor: University Hospital, Tours • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:59 UTC
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Smart band tracks COVID-19 breathing trouble
Knowledge-focused TerminatedThis study tested a special band called AirGo to monitor breathing patterns in hospitalized COVID-19 patients with respiratory failure. The goal was to see if the band could detect early signs of worsening breathing, helping doctors decide when to use a breathing tube. The study …
Sponsor: Massachusetts General Hospital • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:55 UTC
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Early safety test of iCP-NI drug halted before completion
Knowledge-focused TerminatedThis early-phase study tested the safety and tolerability of an experimental drug called iCP-NI in 24 healthy adults. Participants received either the drug or a placebo by intravenous infusion. The trial was terminated, so no conclusions about effectiveness can be drawn.
Phase: PHASE1 • Sponsor: Cellivery Therapeutics, Inc. • Aim: Knowledge-focused
Last updated Jun 26, 2026 19:00 UTC