Heart drug fails to prove benefit for lung failure patients in early-stop trial
NCT ID NCT05847517
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This 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 took part, so no clear conclusions can be drawn.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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14 people
The number who actually took part.
- Started
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Jul 2024
- Finished
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Oct 2025
- Lead sponsor
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A government agency
The lead sponsor is a government body.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients (≥18 years and \<80 years) with a clinical diagnosis of ARDS of any aetiology (pneumonia, including SARS-CoV-2, sepsis, pancreatitis, bronchospasm and trauma) admitted to the ICU. * Orotracheal intubation (OTI) and mechanical ventilation within 72 hours prior to randomisation. * Moderate-severe ARDS (PaO2/FiO2: ≤200 mmHg under standardised conditions (PEEP≥5 cm H2O). * Heart rate ≥ 60 bpm. * Invasive systolic blood pressure ≥ 110 mmHg. Exclusion Criteria: * Prolonged hospital admission prior to randomisation (i.e. ≥7 days at the time of randomisation). * Reduced left ventricular ejection fraction (LVEF \<50%). * Life expectancy due to other processes (cancer, degenerative diseases, etc.) of less than 6 months. * Right ventricular (RV) systolic dysfunction. * Concomitant acute heart failure (cardiac index ≤2.5 L/m2 or pulmonary capillary pressure ≥15 mmHg or clinical suspicion). * Second-degree atrioventricular (AV) block, 2:1 AV block, high-grade/advanced AV block and third-degree AV block. Also significant sinus bradycardia, which would be implied by having a heart rate \>60 bpm as an inclusion criterion. * Pregnant or breastfeeding women. * Cardiogenic shock. * Persistent invasive blood pressure \<110 mmHg despite vasopressor agents. * Use of noradrenaline at concentrations greater than 0.2 µg/kg/min at the time of the randomisation. * Use of dobutamine within 48 hours before randomisation. * Concomitant pulmonary embolism. * Known severe peripheral arterial disease. * Known asthma before admission (with active bronchodilator therapy). * Active beta-blocker treatment prior to admission (i.e. within 3 months prior to admission).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Complejo Hospitalario Universitario de Toledo
Toledo, Castille-La Mancha, 45007, Spain
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Consorci Corporació Sanitària Parc Taulí
Barcelona, Catalonia, 08208, Spain
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Hospital Clínic de Barcelona
Barcelona, Catalonia, 08036, Spain
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Hospital Clínico Universitario de Valencia
Valencia, 46010, Spain
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Hospital Universitario Central de Asturias
Oviedo, Principality of Asturias, 33011, Spain
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Hospital Universitario Clínico San Carlos
Madrid, 28040, Spain
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Hospital Universitario Fundación Jiménez Díaz
Madrid, 28040, Spain
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Hospital Universitario General de Villalba
Madrid, 28400, Spain
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Hospital Universitario Jerez de la Frontera
Jerez de la Frontera, Cádiz, 11407, Spain
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Hospital Universitario La Paz
Madrid, 28046, Spain
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Hospital Universitario Rey Juan Carlos
Madrid, 28933, Spain
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Hospital Universitario de Getafe
Madrid, 28905, Spain
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Steroid dose showdown: can more dexamethasone save lives in respiratory failure?
- Breathing machine settings put to the test in severe lung injury
- The hidden breath: how a mismatch between patient and machine may shape ARDS recovery
- Scientists hunt for hidden subgroups in sudden respiratory failure
- AI plus ultrasound could catch heart and lung decline before it turns critical