Study Stopped
Terminated (based on Part A results, Bayer decided to not continue investigating BAY 1097761 further in Part B; this was not due to any safety data for BAY 1097761)
This Study Collects Information on the Safety of Inhaled Pegylated Adrenomedullin (PEG-ADM), How the Drug is Tolerated and How it Affects Patients Suffering From a Type of Lung Failure That Cause Fluid to Build up in the Lungs Making Breathing Difficult (ARDS)
SEAL
Safety and Efficacy of Inhaled Pegylated Adrenomedullin (PEG-ADM) in Patients Suffering From Acute Respiratory Distress Syndrome (ARDS): a Double-blind, Randomized, Placebo-controlled, Multicenter Phase 2a/b Clinical Trial
2 other identifiers
interventional
90
7 countries
22
Brief Summary
The study is composed of two parts. In part A of the study two active doses of inhaled pegylated adrenomedullin (PEG-ADM) will be compared regarding safety and efficacy to a substance that has no therapeutic effect (placebo) in order to find an optimal and safe of the study drug. In part B of the study the highest dose that is considered safe and has demonstrated efficacy will be taken forward to collect information how well patients suffering from Acute Respiratory Distress Syndrome (ARDS) respond to treatment with inhaled pegylated adrenomedullin (PEG-ADM) compared to treatment with placebo. ARDS is a type of lung failure that cause fluid to build up in the lungs making breathing difficult or impossible.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Jul 2020
22 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 29, 2020
CompletedFirst Posted
Study publicly available on registry
June 4, 2020
CompletedStudy Start
First participant enrolled
July 7, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 28, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
December 28, 2022
CompletedApril 18, 2023
March 1, 2023
2.5 years
May 29, 2020
April 13, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
VFS in Part B participants
Ventilator-free survival (VFS, participants alive and not on invasive mechanical ventilation)
At Day 28
Secondary Outcomes (7)
CUI in Part A participants
Up to 7 days
VFS in Part A participants
At Day 28
All-cause mortality in Part A and Part B participants
At Day 28, Day 60 and Day 90
Proportion of participants who still require invasive mechanical ventilation support in Part A and Part B participants
At Day 28 and Day 60
Ventilator-free days (VFDs) in Part A and Part B participants
Within Day 28 and Day 60
- +2 more secondary outcomes
Study Arms (5)
Part A - Active Drug Dose 1
EXPERIMENTALParticipants will receive Active Drug Dose 1 for a maximum of 14 days in study phase Part A
Part A - Active Drug Dose 2
EXPERIMENTALParticipants will receive Active Drug Dose 2 for a maximum of 14 days in study phase Part A
Part A - Placebo
PLACEBO COMPARATORParticipants will receive Placebo for a maximum of 14 days in study phase Part A
Part B - Active Drug Dose
EXPERIMENTALParticipants will receive Active Drug 1 or 2 for a maximum of 14 days in study phase Part B
Part B - Placebo
PLACEBO COMPARATORParticipants will receive Placebo for a maximum of 14 days in study phase Part B
Interventions
Participants will receive a lower dose ADM by inhalation
Participants will receive Placebo to BAY1097761 by inhalation
Participants will receive a higher dose ADM by inhalation
Eligibility Criteria
You may qualify if:
- Invasively mechanically ventilated acute respiratory distress syndrome \[ARDS\] patients (diagnosed according to Berlin definition of ARDS, including positive end-expiratory pressure \[PEEP\] of ≥5 cm H2O, X-ray (or CT scan) indicative of ARDS: bilateral opacities not fully explained by cardiac failure, fluid overload, lobar/lung collapse, effusions or nodules).
- Pneumonia
- Aspiration
- Sepsis
- Pancreatitis
- Prior to randomization, hypoxemia with PaO2:FiO2 ≤300 mmHg continuously observed for a period of ≥4 hours (with values of ≥2 arterial blood gas \[ABG\] analyses during that time, with the last value obtained timely (generally ≤3 hours) prior to randomization), under ventilation with minimum PEEP ≥8 cm H2O.
- Time from first meeting the last diagnostic ARDS criterion (Berlin criteria) to randomization must be ≤48 hours.
- For Study Part A: ARDS patients for whom measurements of extra-vascular lung water are regarded as medically indicated by the treating physician, and these measurements are planned as part of their clinical care, from Study Day 1 up to Study Day 7 (if then still intubated).
You may not qualify if:
- Any value of a PaO2:FiO2 ratio \>300 mmHg within a time interval of 4 hours before randomization
- Rescue therapy (e.g. inhalation of nitric oxide gas and/or inhalation of prostacyclin analogues, or extra corporeal membrane oxygenation \[ECMO\] / extra corporeal CO2 removal \[ECCO2R\]) already initiated at screening and/or Study Day 1 (prior to first dose of the study intervention)
- Moribund participants not expected to survive 24 hours (clinical decision)
- Expected duration of invasive mechanical ventilation less than 48 hours (clinical decision)
- History of co-morbidities requiring long-term/home oxygen use (e.g. severe chronic obstructive pulmonary disease \[COPD\], pulmonary fibrosis) or non-invasive ventilation (except for sleep apnea management), or making weaning per se improbable (e.g. ALS, muscular dystrophy)
- Smoke inhalation injury, extensive burns or trauma/head injury as concomitant condition
- History of pneumectomy, lung lobectomy or lung transplant
- Diffuse alveolar hemorrhage from vasculitis
- Current lung malignancy (incl. lung metastasis), or other malignancy requiring chemotherapy or radiation within the last month
- Chronic kidney disease with a history of renal replacement therapy (e.g. dialysis)
- Chronic liver disease Child-Pugh Class C
- Chronic heart failure NYHA IV
- Known hypersensitivity to polyethyleneglycol (PEG, Macrogol)
- Participation in other interventional studies involving pharmacological interventions, or biological or cell therapy interventions
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Bayerlead
Study Sites (22)
Medizinische Universität Innsbruck
Innsbruck, Tyrol, 6020, Austria
Universitätsklinikum AKH Wien
Vienna, 1090, Austria
Fakultni nemocnice Kralovske Vinohrady
Prague, 10034, Czechia
Fakultni nemocnice v Motole
Prague, 150 06, Czechia
Masaryk Hospital Usti n/L
Ústí nad Labem, 401 13, Czechia
Centre Hospitalier Universitaire - Angers
Angers, 49933, France
Center Hospitalier Michallon - Grenoble
La Tronche, 38700, France
Hôpital du Nord - Marseille
Marseille, 13915, France
Hôpital de la Pitié-Salpétrière
Paris, 75013, France
Cochin - Paris
Paris, 75014, France
Hôpital Civil - Strasbourg
Strasbourg, 67091, France
Klinikum Oldenburg AöR
Oldenburg, Lower Saxony, 26133, Germany
Klinikum der Stadt Köln gGmbH - Krankenhaus Merheim
Cologne, North Rhine-Westphalia, 51109, Germany
Universitätsklinikum Schleswig-Holstein (UKSH)
Kiel, Schleswig-Holstein, 24105, Germany
Istituto Clinico Humanitas - Humanitas Mirasole S.p.A.
Milan, Lombardy, 20089, Italy
Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico
Milan, Lombardy, 20122, Italy
ASST Santi Paolo e Carlo
Milan, Lombardy, 20142, Italy
Corporació Sanitària Parc Taulí
Sabadell, Barcelona, 08208, Spain
Ciutat Sanitaria i Universitaria de la Vall d'Hebron
Barcelona, 08035, Spain
Hospital de la Santa Creu i de Sant Pau
Barcelona, 08041, Spain
University Hospital of Wales
Cardiff, CF14 4XW, United Kingdom
Guy's Hospital
London, SE1 9RT, United Kingdom
Related Publications (1)
Karagiannidis C, McAuley DF, Thompson BT, Reimer T, Shakery K, Schmitz S, Cortes MN, Ullrich R, Meziani F, Mercat A, Chiumello D, Duska F, Combes A; SEAL Trial Investigators. Safety and efficacy of inhaled PEG-ADM in ARDS patients: a randomised controlled trial. Crit Care. 2025 Oct 23;29(1):448. doi: 10.1186/s13054-025-05617-y.
PMID: 41131549DERIVED
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 29, 2020
First Posted
June 4, 2020
Study Start
July 7, 2020
Primary Completion
December 28, 2022
Study Completion
December 28, 2022
Last Updated
April 18, 2023
Record last verified: 2023-03
Data Sharing
- IPD Sharing
- Will not share
Availability of this study's data will later be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, timepoint and process of data access. As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014. Interested researchers can use www.vivli.org to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the member section of the portal.