ConductScience.org, home

Trial · NCT02497937

Registered outcomes38

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryChange From Baseline in the Diffusing Capacity of the Lung for Carbon Monoxide (DLco) on Pulmonary Gas Transfer (Site: Mayo)Baseline, Day 4, Day 5 and Day 7 of each treatment period
DLco is a measure of the ability of a gas to transfer from alveoli across the alveolar epithelium and capillary endothelium to the red blood cells. Changes in DLco reflect the alveolar-capillary membrane conductance. Acute pulmonary congestion causes a reduction in DLco. In participants with heart failure, decrease in DLco serves as a predictor of disease progression. An impairment in the diffusing capacity of the lung may be related to symptoms and exercise intolerance associated with heart failure. DLco was measured just prior to and after the 3- minute step test on Days -1, and 7 and just prior to and after an intravenous saline infusion on Day 5. Day -1 was Baseline and change from Baseline was calculated from Day -1 pre-exercise of the respective period, except when calculating the post-infusion change from Baseline, where the pre-infusion value was used as Baseline. Data of DLco (milliliter per millimeter of mercury per minute \[mL/mmHg/min\]) for Mayo site is presented.
PrimaryChange From Baseline in the Diffusing Capacity of the Lung for DLco on Pulmonary Gas Transfer (Site: Hennepin)Baseline, Day 4, Day 5 and Day 7 of each treatment period
DLco is a measure of the ability of a gas to transfer from the alveoli across the alveolar epithelium and the capillary endothelium to the red blood cells. Changes in DLco reflect the alveolar-capillary membrane conductance. Acute pulmonary congestion cause a reduction in DLco. In participants with heart failure, decrease in DLco serves as a predictor of disease progression. An impairment in the diffusing capacity of the lung may be related to the symptoms and exercise intolerance associated with heart failure. DLco was measured just prior to and after the 3- minute step test on Days -1, and 7 and just prior to and after an intravenous saline infusion on Day 5. Day -1 was Baseline and change from Baseline was calculated from Day -1 Pre-Exercise of the respective period, except when calculating the post-infusion change from Baseline, where the pre-infusion value was used as the Baseline. Statistical analysis was not performed as the sample size was too small
SecondaryChange From Baseline in Diffusing Capacity of the Lung for Nitric Oxide (DLno) and Membrane Conductance (DM)Baseline, Day 4, Day 5 and Day 7 of each treatment period
DLno is a measure of the ability of a gas to transfer from the alveoli across the alveolar epithelium and the capillary endothelium to the red blood cells. Changes in DLco reflect the alveolar-capillary DM. Since nitric oxide has a greater affinity for hemoglobin, transfer of gas mainly limits the diffusion of nitric oxide across the alveolar capillary membrane. Day -1 was Baseline and change from Baseline was calculated from Day -1 pre-exercise of the respective period, except when calculating the post-infusion change from Baseline, where the pre-infusion value was used as Baseline. The data is presented only for participants from the Mayo Clinic as the data was not collected at Hennepin.
SecondaryChange From Baseline in Capillary Blood Volume (Vc)Baseline, Day 4, Day 5 and Day 7 of each treatment period
Vc is defined as volume of blood within the capillaries. Day -1 was Baseline and change from Baseline was calculated from Day -1 pre-exercise of the respective period, except when calculating the post-infusion change from Baseline, where the pre-infusion value was used as the Baseline. The data is presented only for participants from the Mayo Clinic as the data was not collected at Hennepin.
SecondaryChange From Baseline in DLco Following Exercise and Following an Intravenous Saline Infusion (Site: Mayo)Baseline, Day 5 and Day 7 of each treatment period
DLco is a measure of the ability of a gas to transfer from the alveoli across the alveolar epithelium and the capillary endothelium to the red blood cells. Changes in DLco reflect the alveolar-capillary membrane conductance. Acute pulmonary congestion causes a reduction in DLco. In participants with heart failure, decrease in DLco serves as a predictor of disease progression. DLco was measured just prior to and after the 3- minute step test on Days -1, and 7 and just prior to and after an intravenous saline infusion on Day 5. Day -1 was Baseline and change from Baseline was calculated from Day -1 pre-exercise of the respective period, except when calculating the post-infusion change from Baseline, where the pre-infusion value was used as the Baseline. Data for DLco following exercise and following an intravenous saline infusion is presented for Mayo site.
SecondaryChange From Baseline in DLco Following Exercise and Following an Intravenous Saline Infusion (Site: Hennepin)Baseline, Day 5 and Day 7 of each treatment period
DLco is a measure of the ability of a gas to transfer from the alveoli across the alveolar epithelium and the capillary endothelium to the red blood cells. Changes in DLco reflect the alveolar-capillary membrane conductance. Acute pulmonary congestion cause a reduction in DLco. In participants with heart failure, decrease in DLco serves as a predictor of disease progression. DLco was measured just prior to and after the 3- minute step test on Days -1, and 7 and just prior to and after an intravenous saline infusion on Day 5. Day -1 was Baseline and change from Baseline was calculated from Day -1 pre-Exercise of the respective period, except when calculating the post-infusion change from Baseline, where the pre-infusion value was used as the Baseline. Data for DLco following exercise and following an intravenous saline infusion is presented for Hennepin site is presented.
SecondaryChange From Baseline in the Ventilation/Volume of Carbon Dioxide Production (VE/VCO2) RatioBaseline and Day 7 of each treatment period
Participants were asked to participate in a submaximal exercise test that consisted of 3 parts: a 2-minute (min) resting Baseline, a 3-min step exercise and a 1-min recovery period. Throughout the test, breathing pattern, gas exchange, and heart rate were monitored using a simplified gas analysis system. Respiratory exchange ratio and the Borg Rating of Perceived Exertion measures were utilized to ensure participants perform progressive exercise while maintaining a submaximal level throughout the exercise period. Minute ventilation, breath frequency, tidal volume, oxygen consumption, carbon dioxide (CO2) production, Respiratory exchange ratio (RER) and end tidal CO2 were obtained from the breath-by-breath gas measurements. The VE/VCO2 slope and other variables were derived from this data. Day -1 was Baseline and change from Baseline was calculated by subtracting the Baseline value from value at specified time point.
SecondaryChange From Baseline in Forced Vital Capacity (FVC), Forced Expiratory Volume in 1 Second (FEV1), Forced Expiratory Flows (FEF) 25-75, FEF50 and FEF75Baseline, Day 4 and Day 7 of each treatment period
FEV1 was defined as the volume of air that can be forced out in one second after taking a deep breath. FVC is the total amount of air exhaled during the lung function test. FEF is the the flow (or speed) of air coming out of the lung during the middle portion of a forced expiration. FEF 25-75, FEF50 and FEF75 is defined as a reduction in forced expiratory flow at 25 to 75 percent of the pulmonary volume. Results presented combines data across all sites. Day -1 was Baseline and change from Baseline was calculated by subtracting the Baseline value from value at specified time point.
SecondaryChange From Baseline in Functional Residual Capacity (FRC)Baseline, Day 4 and Day 7 of each treatment period
FRC is the volume of air present in the lungs at the end of passive expiration. FRC was planned to be measured by body plethysmography. Analysis was planned but not performed. FRC parameter was not collected because other measures which were collected served as reasonable surrogates.
SecondaryChange From Baseline in End-expiratory Lung Volume (EELV) Measured by Body PlethysmographBaseline, Day 4 and Day 7 of each treatment period
EELV corresponds to FRC in the presence of positive end expiration pressure (PEEP). Analysis was planned but not performed. EELV parameter was not collected because other measures which were collected served as reasonable surrogates.
SecondaryChange From Baseline in Dyspnea ScoreBaseline, Day 5 and Day 7 of each treatment period
Dyspnea was assessed using a standardized, validated 5-point Likert scale. Participants were asked to check the box next to the statement that most accurately described their current state of breathlessness or shortness of breath. Scale consisted of 5 points : 1- Not short of breath, 2- Mildly short of breath, 3- Moderately short of breath, 4- Severely short of breath and 5- Very severely short of breath. Participants rated their current state of breathlessness on this 5 point scale. Day -1 was Baseline and change from Baseline was calculated by subtracting the Baseline value from value at specified time point .
SecondaryRespiratory Rate Over Time Continuously Measured by Body Sensor (Site: Mayo Only)Up to Day 7 of each treatment period
Continuous remote monitoring was performed during each 7-day study period utilizing the Preventice BodyGuardian Remote Monitoring System. Participants were instructed to wear the sensor throughout each study period. Respiratory monitoring data was collected in different body positions like standing, leaning, lying and unknown. Data is presented only for participants from Mayo clinic.
SecondaryChange From Baseline in Systolic Blood Pressure(SBP) and Diastolic Blood Pressure (DBP)Baseline and up to Day 7 of each treatment period
SBP and DBP were measured in a semi-supine position after 5 minutes rest at Baseline and up to 7 days of each treatment period. Day -1 was Baseline and change from Baseline was calculated by subtracting the Baseline value from specified time point value.
SecondaryChange From Baseline in Heart RateBaseline and up to Day 7 of each treatment period
Heart rate was measured in a semi-supine position after 5 minutes rest at Baseline and up to 7 days of each treatment period. Day -1 was Baseline and change from Baseline was calculated by subtracting the Baseline value from value at specified time point.
SecondaryChange From Baseline in Respiration RateBaseline and up to Day 7 of each treatment period
Respiration rate was measured in a semi-supine position after 5 minutes rest at Baseline and up to 7 days of each treatment period. Day -1 was Baseline and change from Baseline was calculated by subtracting the Baseline value from value at specified time point.
SecondaryChange From Baseline in TemperatureBaseline and up to Day 7 of each treatment period
Body temperature was measured in a semi-supine position after 5 minutes rest at Baseline and up to 7 days of each treatment period. Day -1 was Baseline and change from Baseline was calculated by subtracting the Baseline value from value at specified time point.
SecondaryChange From Baseline in Percent Oxygen in BloodBaseline and up to Day 7 of each treatment period
Percent oxygen in blood was measured using pulse oximetry in a semi-supine position after 5 minutes rest at Baseline and up to 7 days of each treatment period. Day -1 was Baseline and change from Baseline was calculated by subtracting the Baseline value from value at specified time point.
SecondaryNumber of Participants With Abnormal Electrocardiogram (ECG) FindingsUp to Day 7 in each treatment period
Triplicate 12-lead ECG was obtained using an automated ECG machine at Baseline (Day-1) and single ECG measurements (M) were taken on Day 4 and Day 7. Data for number of participants with abnormal-clinically significant (CS) and abnormal-not clinically significant (NCS) ECG data is presented.
SecondaryChange From Baseline in Alanine Aminotransferase (ALT), Alkaline Phosphatase (ALP), Aspartate Amino Transferase (AST), Creatine Kinase, Gamma Glutamyl Transferase (GGT) ValuesBaseline and up to Day 7 in each treatment period
Blood samples were collected to analyze the chemistry parameters including ALT, ALP, AST, creatine kinase and GGT. Change from Baseline is presented for these parameters. Day -1 was Baseline and change from Baseline was calculated by subtracting the Baseline value from value at specified time point.
SecondaryChange From Baseline in Albumin and Total Protein ValuesBaseline and up to Day 7 of each treatment period
Blood samples were collected to analyze the chemistry parameters including albumin and total protein. Change from Baseline is presented for these parameters. Day -1 was Baseline and change from Baseline was calculated by subtracting the Baseline value from value at specified time point.

Source ClinicalTrials.govtrials-2026-11-12-0.4.0

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNone stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this list from software.

Twenty rows a page, as JSON. No key.

GET https://conductscience.org/api/trials/v1/NCT02497937/registered