CovidResearchTrials by Shray Alag


CovidResearchTrials Covid 19 Research using Clinical Trials (Home Page)


Report for D053120: Respiratory Aspiration NIH

(Synonyms: Respiratory As, Respiratory Aspirat, Respiratory Aspiration)

Developed by Shray Alag
Clinical Trial MeSH HPO Drug Gene SNP Protein Mutation


Correlated Drug Terms (13)


Name (Synonyms) Correlation
drug1744 PSG Wiki 0.38
drug2064 Relaxation Breathing Wiki 0.38
drug415 Buspirone + PAP therapy Wiki 0.38
drug1216 Inspiratory Muscle Training Wiki 0.38
drug2722 Zolpidem + PAP therapy Wiki 0.38
drug114 Acetazolamide + supplemental oxygen + PAP therapy Wiki 0.38
drug1464 Melphalan Wiki 0.38
drug2462 Telephone survey Wiki 0.38
drug1607 Nitric Oxide delivered via LungFit™ system Wiki 0.38
drug1751 PUL-042 Inhalation Solution Wiki 0.27
drug1604 Nitric Oxide Wiki 0.19
drug2326 Standard of care Wiki 0.09
drug1822 Placebo Wiki 0.02

Correlated MeSH Terms (9)


Name (Synonyms) Correlation
D020182 Sleep Apnea, Central NIH 0.38
D012891 Sleep Apnea, NIH 0.19
D012120 Respiration Disorders NIH 0.11
D011024 Pneumonia, Viral NIH 0.10
D012140 Respiratory Tract Diseases NIH 0.09
D011014 Pneumonia NIH 0.04
D007239 Infection NIH 0.02
D045169 Severe Acute Respiratory Syndrome NIH 0.02
D018352 Coronavirus Infections NIH 0.02

Correlated HPO Terms (3)


Name (Synonyms) Correlation
HP:0002871 Central apnea HPO 0.38
HP:0010535 Sleep apnea HPO 0.19
HP:0002090 Pneumonia HPO 0.04

There are 7 clinical trials

Clinical Trials


1 Central Sleep Apnea: Physiologic Mechanisms to Inform Treatment

Central sleep apnea (CSA) is common in patients with heart failure and those using opioid analgesics. Unfortunately, effective treatment of central apnea remains elusive, pressure therapy given the modest efficiency of positive airway pressure therapy. The focus of this proposal is to identify mechanistic pathways to guide future therapeutic interventions for central sleep apnea based on the strong premise that multi-modality therapy will normalize respiration and hence mitigate adverse long-term consequences of CSA. The investigators' proposed studies will test combination therapies, including positive airway pressure (PAP) plus a pharmacological agent who have heart failure or are using opioid analgesics. The investigators anticipate that findings will inform future clinical trials to improve care and quality of life among Veterans suffering from central sleep apnea, which remains difficult to treat using existing approaches.

NCT04118387 Sleep Disordered Breathing Able Bodied Drug: Acetazolamide + supplemental oxygen + PAP therapy Drug: Zolpidem + PAP therapy Drug: Buspirone + PAP therapy
MeSH:Sleep Apnea Syndromes Respiratory Aspiration Sleep Apnea, Central
HPO:Central apnea Central sleep apnea Sleep apnea

Primary Outcomes

Description: CO2 reserve is the requisite change to induce central apnea is referred to as the CO2 reserve, which can be positive or negative.

Measure: CO2 reserve

Time: 120 days

Description: Central apnea indices is used to indicate the severity of central sleep apnea

Measure: Central apnea indices

Time: 120 days

Secondary Outcomes

Description: Controller gain is a ventilatory response to changes in end-tidal PCO2

Measure: Controller gain

Time: 120 days

Description: Plant gain is blood gas response to a change in ventilation. This measure represents the effectiveness of the "plant" in eliminating CO2.

Measure: Plant gain

Time: 120 days

Description: This measure represents the activity of the carotid bodies. It is measured by the decrease in ventilation in response to a single breath of 100% oxygen.

Measure: Carotid body function

Time: 120 days

Description: Peripheral chemoreflex sensitivity is measured either via brief hypoxia or a single breath of CO2.

Measure: Peripheral chemoreflex sensitivity

Time: 120 days

Description: The nadir pressure in the upper airway (supra-glottic pressure) prior to the occurrence of an arousal.

Measure: Respiratory arousal threshold

Time: 120 days

Description: To assess breathing stability, the investigators will measure % stable breathing using minute ventilation (VE) and tidal volume (VT) coefficient of variation as indices of breathing instability.

Measure: % stable breathing

Time: 120 days

2 A Phase 2 Multiple Dose Study to Evaluate the Efficacy and Safety of PUL-042 Inhalation Solution in Reducing the Severity of COVID-19 in Adults Positive for SARS-CoV-2 Infection

Adults who have tested positive for SARS-CoV-2 infection and who do not require supplemental oxygen will receive PUL-042 Inhalation Solution or placebo 3 times over a one week period in addition to their normal care. Subjects will be be followed and assessed for their clinical status over 28 days to see if PUL-042 Inhalation Solution improves the clinical outcome

NCT04312997 COVID-19 Drug: PUL-042 Inhalation Solution Drug: Placebo
MeSH:Infection Respiratory Aspiration

Primary Outcomes

Description: To determine the efficacy of PUL-042 Inhalation Solution in decreasing the severity of COVID-19 in subjects: 1) who have documented SARS-CoV-2 infection and, 2) who do not require supplemental oxygen (Ordinal Scale for Clinical Improvement 3 or less) at the time of enrollment. The primary endpoint is the difference in the proportion of patients with clinically meaningful worsening of COVID-19 within 28 days from the start of experimental therapy, as indicated by an increase of at least 2 points on the Ordinal Scale for Clinical Improvement. The Ordinal Scale for Clinical Improvement is a nine point scale (0-8) with 0 being no clinical or virological evidence of infection and 8 being death.

Measure: Severity of COVID-19

Time: 28 days

Secondary Outcomes

Description: SARS-Co-V-2 positivity up to 28 days from the start of experimental therapy

Measure: SARS-CoV-2 infection

Time: 28 days

Description: To determine the difference in the proportion of COVID-19 patients with clinically meaningful worsening of COVID-19 within 14 days from the start of experimental therapy, as indicated by an increase of at least 2 points on the Ordinal Scale for Clinical Improvement. The Ordinal Scale for Clinical Improvement is a nine point scale (0-8) with 0 being no clinical or virological evidence of infection and 8 being death.

Measure: Severity of COVID-19 over 14 days

Time: 14 days

Description: To assess the progression of COVID-19 severity during the study as measured by the SARS-CoV-2 Symptom Score. The SARS-CoV-2 Symptom Score measures 3 elements on a 0-3 scale (cough, shortness of breath or difficulty breathing, and muscle aches or fatigue) ranging from 0 for none to 3 for severe. The fourth element is fever and it is rated on a 0-4 scale with 0 being no fever and 4 being life-threatening.

Measure: Severity of COVID-19 symptoms

Time: 28 days

Description: The requirement for ICU admission within 28 days from the start of the experimental therapy.

Measure: ICU admission

Time: 28 days

Description: The requirement for mechanical ventilation within 28 days from the start of the experimental therapy.

Measure: Mechanical Ventilation

Time: 28 days

Description: All cause mortality at 28 days from the start of experimental therapy

Measure: Mortality

Time: 28 days

3 Impact of Neck Inspiratory Muscle Activation During Sleep in ICU Patients After a COVID 19 ARDS

Most patients in intensive care units (ICUs) experience severe sleep disruption. Sleep disruption and sleep alteration may have an influence on the ability to breathe spontaneously. But, the cause of altered sleep remains unknown. Previous studies have shown that decreasing nocturnal respiratory muscle activity through mechanical ventilation might improve sleep quality. Nocturnal respiratory muscle activity may be one of the potential factor which contribute to alter sleep in the ICU. Therefore, the aim of this study is to analyse the presence of NIM activation during the night and it's consequence in an ICU population with the same pathology (COVID 19 ARDS).

NCT04371029 ARDS COVID-19 Other: PSG
MeSH:Respiratory Aspiration

Primary Outcomes

Description: Comparison between patients with NIM activation during the night and patients without NIM activation during the night, in patients COVID 19 ARDS with altered spleep. A Polysomnography (PSG) will be performed the night before extubation.

Measure: Proportion of patients with altered spleep

Time: At day 10 after inclusion

Secondary Outcomes

Description: Thanks to a PSG the night befor discharge, the seep architecture will be estimated.

Measure: Sleep architecture at hospital discharge

Time: At day 28 after inclusion

Description: Thanks to actimetry measure during hospitalization in the post ICU ward.

Measure: Sleep monitoring during hospital stay after ICU discharge

Time: At day 18 after ICU discharge

Description: Sleep quality will be evaluate by the Pittsburgh sleep quality index. The 7 components of the score add up for give an overall score ranging from 0 to 21 points, 0 meaning that there is no difficulty, and 21 indicating on the contrary major difficulties.

Measure: Sleep quality

Time: 3 months after hospiotal discharge

Description: Thanks to a PSG at 3 months, the seep architecture will be estimated.

Measure: Sleep architecture at month-3

Time: 3 months after hospital discharge

Description: all cost will be estimated during ICU hospitalization.

Measure: Cost of ICU hospitalization

Time: From inclusion to ICU discharge, up to 10 days after inclusion

4 Single-center, Prospective, Open-label, Comparator Study, Blind for Central Accessor to Access the Efficacy, Safety, and Tolerability of Inhalations of Low-doses of Melphalan in Patients With Pneumonia With Confirmed or Suspected COVID-19

This single-center, prospective, open-label, comparator study, blind for central accessor evaluates the efficacy, safety of inhalations of low-doses of melphalan in patients with pneumonia with confirmed or suspected COVID-19. All patients will receive 0,1 mg of melphalan in 7-10 daily inhalations 1 time per day.

NCT04380376 COVID-19 Viral Pneumonia Drug: Melphalan Other: Standard of care
MeSH:Pneumonia, Viral Pneumonia Respiratory Aspiration
HPO:Pneumonia

Primary Outcomes

Description: The number of patients with the clinical improvement is defined as an improvement of two points (from the status at baseline) on an ordinal scale of clinical improvement on day 28 or discharge from hospital ( whatever occurs earlier) Death Hospitalized with Invasive mechanical ventilation plus additional organ support - ECMO / pressors / RRT Hospitalized with intubation and mechanical ventilation Hospitalized on non-invasive ventilation or high flow oxygen. Hospitalized on a mask or nasal prongs. Hospitalized no oxygen therapy. Ambulatory, with limitation of activities. Ambulatory, no limitation of activities. I. No clinical or virological evidence of infection.

Measure: The changes of COVID Ordinal Outcomes Scale

Time: baseline vs Day 14, day 28

Description: Percentage of the patients with clinical recovery which is defined as a normalisation of fever, respiratory rate, and oxygen saturation, and improvement of cough, sustained for at least 72 hours, or live hospital discharge, whichever comes first. Normalization and improvement criteria: Fever - <37°C, Respiratory rate - ≤24/minute on room air, Oxygen saturation - >94% on room air, Cough - mild or absent on a patient reported scale of severe, moderate, mild, absent.

Measure: Percentage of the patients with Clinical Recovery

Time: baseline vs day 7, day 14, day 28

Description: The evaluation of changes in modified Borg dyspnea scale. From 0 to 10 units.A lower score means a better clinical result (0 is the absence of dyspnea, and 10 - is maximal dyspnea). Minimal clinically important difference is 1 unit.

Measure: The changes of the Borg's scale

Time: Baseline vs day 7, day 14, day 28

Secondary Outcomes

Description: Change in C-reactive protein (CRP) level from baseline in mg/ml. A lower level of CRP means a better clinical result.

Measure: CRP level

Time: baseline, day 7, Day 14, Day 28

Description: Change in blood absolute lymphocyte count from baseline. A higher number of lymphocytes means a better clinical result.

Measure: Lymphocyte count

Time: baseline, day 7, Day 14, Day 28

Description: Change in blood D-dimer level from baseline. A lower level of D-dimer means a better clinical result.

Measure: D-dimer

Time: baseline, day 7, Day 14, Day 28

Description: Change in peripheral blood IL-6 level from baseline. A lower level of IL-6 means a better clinical result.

Measure: IL-6

Time: baseline, day 7, Day 14, Day 28

Description: Percentage of patients without artificial lung ventilation during the study. A lower percentage of patients means a better clinical result.

Measure: Percentage of patients without artificial lung ventilation

Time: baseline, day 7, Day 14, Day 28

5 Prevention of COVID-19 Progression Through Early Administration of Inhaled Nitric Oxide.

This is a pilot randomized-controlled (2:1) open label investigation of inhaled NO to prevent progression to more advanced disease in 42 hospitalized patients with COVID-19, at risk for worsening, based on baseline systemic oxygenation and 2 or more of the major risk factors of age > 60 years, type II DM, hypertension, and obesity.

NCT04388683 COVID-19 Drug: Nitric Oxide
MeSH:Respiratory Aspiration

Primary Outcomes

Description: Prevention of progressive systemic de-oxygenation, with escalation to higher levels of oxygen and ventilatory support or death, assessed using a 7-point severity scale (See statistical methods). Between-group differences in the average maximum disease severity assessed through 28 days, through the following severity scores: a) increased liter oxygen flow, through a high flow nasal cannula; b) non-invasive ventilation; c) intubation or institution of ECMO; or d) death.

Measure: Prevention of progressive systemic de-oxygenation, with escalation to higher levels of oxygen and ventilatory support or death, assessed using a 7-point severity scale.

Time: 28 days

Secondary Outcomes

Measure: Prevention of progression assessed by an alternate severity scale

Time: 28 days

Measure: Time to reaching maximal severity score

Time: 28 days

Measure: Proportion of patients in each stage at maximum severity

Time: 28 days

Measure: PaO2/FIO2 or SaO2/FIO2 ratio, measured daily

Time: 28 days

Measure: Length of hospital Stay (death assigned as worst case)

Time: 28 days

Measure: Frequency of Intubation, ECMO, or need to intubate with "Do Not Resuscitate" order

Time: 28 days

Measure: Mortality

Time: 28 days

Measure: IL6 level

Time: 7 days

Measure: TNF-alpha level

Time: 7 days

Measure: Fibrinogen level

Time: 7 days

Measure: CRP level

Time: 7 days

Measure: Ferritin Level

Time: 7 days

Measure: D-dimer level

Time: 7 days

6 Inhaled NO for the Treatment of COVID-19 Caused by SARS-CoV-2 (US Trial)

The purpose of this open label, randomized, study is to obtain information on the safety and efficacy of 80 ppm Nitric Oxide given in addition to the standard of care of patients with COVID-19 caused by SARS-CoV-2.

NCT04397692 Corona Virus Infection COVID-19 SARS-CoV 2 Nitric Oxide Respiratory Disease Pneumonia, Viral Inhaled Nitric Oxide Device: Nitric Oxide delivered via LungFit™ system
MeSH:Coronavirus Infections Severe Acute Respiratory Syndrome Pneumonia, Viral Pneumonia Respiratory Aspiration Respiration Disorders Respiratory Tract Diseases
HPO:Pneumonia

Primary Outcomes

Description: Time to deterioration measured by need for NIV, HFNC or intubation

Measure: Time to deterioration

Time: 14 Days

Secondary Outcomes

Description: Time to non-invasive ventilation

Measure: Time to NIV

Time: 14 Days

Description: Time to high flow nasal cannula

Measure: Time to HFNC

Time: 14 Days

Description: Time to intubation

Measure: Time to intubation

Time: 14 days

Description: Time to patient having stable oxygen saturation (SpO2) of greater than or equal to 93%

Measure: Time to patient having stable oxygen saturation (SpO2) of greater than or equal to 93%

Time: 14 days

Other Outcomes

Description: Need for supplemental oxygen

Measure: Need for supplemental oxygen

Time: 14 days

Description: Change in viral load

Measure: Change in viral load

Time: 30 days

Description: Duration of the Hospital Length of Stay (LOS)

Measure: Duration of the Hospital Length of Stay (LOS)

Time: 14 days

Description: Mortality rate at Day 30

Measure: Mortality rate at Day 30

Time: 30 days

7 Telehealth-Delivered Preoperative Inspiratory Muscle Training: An Innovative Solution to Conserve Scarce ICU Resources

In light of the corona virus pandemic (COVID-19), there is critical need to conserve scarce mechanical ventilation (MV) resources. This study evaluates an intervention in non-infected cardiac patients as a means to assist with minimizing MV and ICU length of stay (LOS). Pre-op inspiratory muscle training (IMT) has been shown to decrease pulmonary complications, MV dependence, and ICU LOS following thoracic surgery. The investigators aim to determine the mechanism of remodeling in diaphragms of adults who undergo pre-op IMT.

NCT04423614 Mechanical Ventilation Complication Other: Inspiratory Muscle Training Other: Relaxation Breathing
MeSH:Respiratory Aspiration

Primary Outcomes

Description: Maximal inspiratory pressure will be quantified in cm of water pressure.

Measure: Maximal inspiratory pressure

Time: Post breathing exercise sessions (up to 4 weeks)

Description: Histology will be used to determine fiber type and cross-sectional area using primary antibodies for laminin and type-specific myosin heavy chain, followed by a triple immunofluorescence-conjugated secondary antibody labeling technique.

Measure: Muscle fiber cross-sectional area and fiber type proportion.

Time: Intra-operatively

Secondary Outcomes

Description: Spirometry will be used to measure peak expiratory flow during a voluntary cough maneuver. It will be quantified in liters per second.

Measure: Peak expiratory flow

Time: Post breathing exercise sessions (up to 4 weeks)

Description: Time to extubation will be measured as hours of post-operative mechanical ventilation.

Measure: Time to extubation

Time: Up to discharge from ICU

Description: Length of ICU stay will be measured as hours spent in ICU after surgery.

Measure: Length of ICU stay

Time: Up to 1 month

Description: Length of hospital stay will be measured as hours spent in hospital after surgery.

Measure: Length of hospital stay

Time: Up to 1 month

Description: Histology will be used to assess neuromuscular junction number and morphology using immunofluorescent-labeled antibodies for synaptophysin and alpha bungarotoxin. Neuromuscular junction image stacks will be visualized with confocal microscopy and morphology classified according to endplate area and area fractions of fragmented junctions, acetylcholine receptor-occupied endplate area, synaptophysin-occupied endplates, and abandoned endplates.

Measure: Neuromuscular junction morphology

Time: Intra-operatively

Description: RNA isolation will be performed using Tri Reagent and chloroform based manual method. RNA will be quantified and RNA-Seq will be used to assess gene expression.

Measure: Muscle differential gene expression

Time: Intra-operatively

Description: Physical function will be assessed with the Patient Reported Outcomes Measurement Information System Physical Function questionnaire. Each answer corresponds to a number between 1 and 5.

Measure: Physical Function

Time: Post breathing exercise sessions (up to 4 weeks)

Description: Dyspnoea will be assessed with the Dyspnoea 12 Questionnaire. Responses range from None to Severe.

Measure: Dyspnoea

Time: Post breathing exercise sessions (up to 4 weeks)


HPO Nodes