[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100652023":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":26,"centralContacts":29,"locations":35,"responsibleParty":49,"collaborators":26,"id":53,"slug":54,"hasResults":55,"nctId":56,"briefTitle":57,"officialTitle":58,"acronym":26,"eligibilityCriteria":59,"healthyVolunteers":55,"sex":60,"minAge":61,"maxAge":26,"enrollmentInfo":62,"targetDuration":26,"studyType":65,"phases":66,"briefSummary":68,"conditions":69,"keywords":26,"overallStatus":71,"whyStopped":26,"lastUpdateSubmitDate":72,"lastUpdatePostDateStruct":73,"startDateStruct":76,"completionDateStruct":78,"leadSponsor":80,"locationsCount":81},{"fullName":5,"class":6},"Capital Medical University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Flow index-guided PS titration","EXPERIMENTAL","Patients receive pressure support ventilation (PSV) with PS titration guided by the Flow Index (FI). FI is measured non-invasively from the ventilator flow waveform at the Y-piece using 10 consecutive stable breaths. PS is adjusted to maintain FI within 2.6-4.5: PS is reduced by 2 cmH₂O if FI \\\u003C 2.6, or increased by 2 cmH₂O if FI \\> 4.5. After each adjustment, a 2-minute safety assessment verifies adequate ventilation (tidal volume ≥4 mL\u002Fkg predicted body weight, respiratory rate ≤35 breaths\u002Fmin, peak inspiratory pressure ≤40 cmH₂O). PS titration is performed twice daily (8:00 AM and 8:00 PM) during the intervention period. All other ventilator settings follow standard care.",[13],"Procedure: FI-guided ventilator support adjustment",{"label":15,"type":16,"description":17,"interventionNames":18},"Conventional PS titration","ACTIVE_COMPARATOR","Patients receive PSV with PS titration based on tidal volume (VT) and respiratory rate (RR). PS is adjusted to achieve VT of 6-8 mL\u002Fkg predicted body weight and RR of 20-30 breaths\u002Fmin: PS is reduced by 2 cmH₂O if VT \\> 8 mL\u002Fkg and\u002For RR \\\u003C 20 breaths\u002Fmin, or increased by 2 cmH₂O if VT \\\u003C 6 mL\u002Fkg and\u002For RR \\> 30 breaths\u002Fmin. If VT is within 6-8 mL\u002Fkg, PS is not adjusted and sedation\u002Fanalgesia is optimized to achieve target RR. PS titration is performed twice daily (8:00 AM and 8:00 PM) during the intervention period.",[19],"Procedure: Conventional PS titration",[21,27],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"PROCEDURE","FI-guided ventilator support adjustment","Flow index (FI)-guided pressure support (PS) titration. FI is measured non-invasively from the ventilator flow waveform at the Y-piece using 10 consecutive stable breaths. PS is adjusted to maintain FI within 2.6-4.5: PS is reduced by 2 cmH₂O if FI \\\u003C 2.6, or increased by 2 cmH₂O if FI \\> 4.5. After each adjustment, a 2-minute safety assessment verifies adequate ventilation (tidal volume 4-10 mL\u002Fkg predicted body weight, respiratory rate ≤35 breaths\u002Fmin, peak inspiratory pressure ≤40 cmH₂O). PS titration is performed twice daily (8:00 AM and 8:00 PM) during the intervention period. All other ventilator settings follow standard care.",[9],null,{"type":22,"name":15,"description":17,"armGroupLabels":28,"otherNames":26},[15],[30],{"name":31,"role":32,"phone":33,"phoneExt":26,"email":34},"Yi-Min Zhou","CONTACT","+8618518474093","acapoftea2021@163.com",[36],{"facility":37,"status":26,"city":38,"state":39,"zip":40,"country":41,"countryCode":42,"cosmosGeoPoint":43,"geoPoint":48,"contacts":26},"Capital Medical University Beijing Tiantan Hospital","Beijing","Beijing Municipality","100070","China","CN",{"type":44,"coordinates":45},"Point",[46,47],116.39723,39.9075,{"lat":47,"lon":46},{"type":50,"investigatorFullName":51,"investigatorTitle":52,"investigatorAffiliation":5,"oldNameTitle":26,"oldOrganization":26},"PRINCIPAL_INVESTIGATOR","Zhou Yi-Min","Attending Physician","100652023","titration-of-ps-guided-by-fi--a-pilot-study-100652023",false,"NCT07769307","Titration of PS Guided by FI : A Pilot Study","Titration of Pressure Support Guided by Flow Index: A Pilot Study","Inclusion Criteria:\n\n* Adult patients (age ≥ 18 years) receiving pressure support ventilation (PSV)\n* Expected duration of invasive mechanical ventilation \\> 48 hours\n\nExclusion Criteria:\n\n* Patients who have received PSV for \\> 48 hours at the time of screening\n* Neuromuscular disease, diaphragmatic dysfunction, or central nervous system disease affecting the respiratory center\n* Incomplete lung or chest wall integrity (e.g., pneumothorax, tracheoesophageal fistula, rib fractures)\n* Acute respiratory distress syndrome (ARDS) or chronic obstructive pulmonary disease (COPD)\n* Body mass index (BMI) \\> 35 kg\u002Fm²\n* Pregnancy or lactation\n* Participation in another interventional study or refusal to participate","ALL","18 Years",{"count":63,"type":64},60,"ESTIMATED","INTERVENTIONAL",[67],"NA","The goal of this single-center, pilot, randomized controlled trial is to evaluate the feasibility and preliminary efficacy of using the Flow Index (FI) to guide Pressure Support (PS) titration in adult patients receiving Pressure Support Ventilation (PSV) who are expected to require invasive mechanical ventilation for more than 48 hours.\n\nThe main questions it aims to answer are:\n\n* Is FI-guided PS titration feasible and safe in a clinical ICU setting, as assessed by the proportion of failed safety assessments and the emergency termination rate?\n* Does FI-guided PS titration result in a greater proportion of data collection points with respiratory muscle pressure (Pmus) within the normal range (5-10 cmH₂O) compared to conventional PS titration based on tidal volume and respiratory rate? Researchers will compare the FI-guided PS titration group to the conventional PS titration group to see if FI-guided adjustment improves the proportion of assessments with adequate inspiratory effort (avoiding both excessive and insufficient support), and whether it leads to differences in clinical outcomes including duration of mechanical ventilation, extubation failure rate, tracheostomy rate, length of ICU and hospital stay, and in-hospital all-cause mortality.\n\nParticipants will:\n\n* Be randomly assigned in a 1:1 ratio to receive either conventional PS titration (adjusting PS to achieve tidal volume of 6-8 mL\u002Fkg predicted body weight and respiratory rate of 20-30 breaths\u002Fmin) or FI-guided PS titration (adjusting PS to maintain FI between 2.6 and 4.5)\n* Complete an intervention period with PS adjustments performed twice daily (at 8:00 AM and 8:00 PM) according to the assigned protocol\n* Have Pmus assessed at each data collection point to determine whether inspiratory effort falls within the target range\n* Undergo a 2-minute safety assessment after each PS adjustment to ensure adequate ventilation and avoid excessive airway pressures or respiratory distress\n* Be followed for up to 28 days after enrollment or until ICU discharge, with extended follow-up to hospital discharge or death for clinical outcome evaluation",[70],"Mechanical Ventilation","NOT_YET_RECRUITING","2026-08-12",{"date":74,"type":75},"2026-08-17","ACTUAL",{"date":77,"type":64},"2026-09-01",{"date":79,"type":64},"2027-04-30",{"name":5,"class":6},1]