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Trial · NCT01720524

Registered outcomes32

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

ListOutcomeTime frameDescription
PrimaryTime on Inhaled Nitric Oxide (iNO) Treatment After Initiation of Intravenous (IV) Study Drug For Participants Without Treatment Failure14 days from the initiation of IV study drug or hospital discharge, whichever occurs first (maximum of 14 days)
Time in days, on iNO treatment, for participants without iNO treatment failure, was calculated 14 days from the initiation of IV study drug or hospital discharge, whichever occurred first. iNO treatment failure was defined as need for additional treatment targeting PPHN, need for extra corporeal membrane oxygenation (ECMO), or death during the study.
PrimaryTreatment Failure Rate14 days from the initiation of IV study drug or hospital discharge, whichever occurs first (maximum of 14 days)Treatment failure rate was defined as percentage of participants who needed additional treatment targeting PPHN, needed ECMO, or died during the study.
SecondaryTime From Initiation of Intravenous (IV) Study Drug to Final Weaning of Mechanical Ventilation14 days from the initiation of IV study drug or hospital discharge, whichever occurs first (maximum of 14 days)
Time in days, from initiation of IV study drug to final weaning of mechanical ventilation among participants achieving final weaning of mechanical ventilation for PPHN was evaluated. Kaplan-Meier method was used for estimation. For participants with mechanical ventilation beyond 336 hours (14 days) from initiation of IV study drug, data was censored at 14 days.
SecondaryTime From Initiation of Intravenous (IV) Study Drug to First Treatment Failure14 days from the initiation of IV study drug or hospital discharge, whichever occurs first (maximum of 14 days)
Time in days, from initiation of IV study drug to first treatment failure (defined as need for additional treatment targeting PPHN, need for ECMO, or death) for participants with treatment failure was evaluated. Kaplan-Meier method was used for estimation. For participants without treatment failure by the endpoint assessment date, data was censored at the endpoint assessment date.
SecondaryPercentage of Participants With Individual Components of Treatment Failure14 days from the initiation of IV study drug or hospital discharge, whichever occurs first (maximum of 14 days)
Percentage of participants with individual components of treatment failure (need to start additional treatment targeting PPHN, need to start ECMO, or death) were evaluated. Some participants could have had multiple qualifying events for treatment failure.
SecondaryChange From Baseline in Oxygenation Index (OI) at Hours 6, 12 and 24 Post-InfusionBaseline, Hours 6, 12 and 24 after start of infusion
Oxygenation index was calculated as the product of fraction of inspired oxygen (FiO2) and mean airway pressure divided by partial pressure of oxygen dissolved in arterial blood (PaO2) \[(FiO2\*mean airway pressure)/PaO2\] measured in centimeter of water per millimeter of mercury (cmH2O/mmHg). FiO2 is the measure of oxygen concentration that is breathed. Mean airway pressure is defined as an average of the airway pressure throughout the respiratory cycle. PaO2 is the measure of oxygen level dissolved in the arterial blood.
SecondaryChange From Baseline in Differential Saturation at Hours 6, 12 and 24 Post-InfusionBaseline, Hours 6, 12 and 24 after start of infusion
Differential oxygenation saturation is a simple way to detect the right-to left shunting at ductus arteriosus using 2 pulse oximeters. It is the difference between pre-ductal and post-ductal sites pulse oxygen saturation (SpO2). Where, pre-duct refers to right upper extremity and post-duct refers to lower limb. Oxygenation saturation is measured as percentage of hemoglobin binding sites occupied by oxygen in the blood.
SecondaryChange From Baseline in Ratio of Partial Pressure of Oxygen in Arterial Blood to Fraction of Inspired Oxygen (P/F) at Hours 6, 12 and 24Baseline, Hours 6, 12 and 24 after start of infusion
The ratio of partial pressure of arterial oxygen to fraction of inspired oxygen is a ratio between the oxygen level in the arterial blood and the oxygen concentration that is breathed. It helps to determine the degree of any problems with how the lungs transfer oxygen to the blood.
SecondaryMaximum Plasma Concentration (Cmax) of Sildenafil and Its Metabolite
Loading dose, Day 1: prior to the start of infusion, 5, 30 minutes after end of loading infusion; Maintenance dose: 48 to 72, 96 to 120 hours during infusion and immediately prior to end of maintenance infusion (up to maximum on Day 14)
Cmax was obtained for Sildenafil and its major metabolite UK-103,320.
SecondaryTotal Plasma Clearance (CL) of Sildenafil and Its Metabolite
Loading dose: prior to the start of infusion, 5, 30 minutes after end of loading infusion on Day 1; Maintenance dose: between 48 to 72, 96 to 120 hours during infusion and immediately prior to end of infusion on Day 1
CL is volume of the body fluid/ plasma from which the drug or the metabolite is completely removed per unit time. CL was obtained for Sildenafil and its major metabolite UK-103,320.
SecondaryCentral Volume of Distribution (Vc) of Sildenafil and Its Metabolite
Loading dose: prior to the start of infusion, 5, 30 minutes after end of loading infusion on Day 1; Maintenance dose: between 48 to 72, 96 to 120 hours during infusion and immediately prior to end of infusion on Day 1
Vc is the hypothetical volume into which a drug or a metabolite initially distributes upon administration. It was determined by using a population-based analysis, non-linear mixed-effects modeling (NONMEM), version 7.4.0. Vc was calculated for Sildenafil and its major metabolite, UK-103,320.
SecondaryNumber of Participants With Treatment Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)Baseline up to 31 days after end of study drug infusion (up to 45 days)
An AE was any untoward medical occurrence in a subject who received study drug without regard to possibility of causal relationship. A SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly; medically important events. Treatment-emergent are events between first infusion of study drug and up to 31 days after end of study drug infusion (up to 45 days) that were absent before treatment or that worsened relative to pretreatment state. AEs included both SAEs and non-SAEs.
SecondaryNumber of Treatment-Emergent Adverse Events (AEs) According to SeverityBaseline up to 31 days after end of study drug infusion (up to 45 days)
AE: untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. SAE: AE resulting in any of the following outcomes: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly; medically important events. Treatment-emergent are events between first infusion of study drug and up to 31 days after end of study drug infusion (up to 45 days) that were absent before treatment or that worsened relative to pretreatment state. AEs included both SAEs and non-SAEs. Severity criteria: mild=did not interfere with subject's usual function; moderate=interfered to some extent with participant's usual function and severe=interfered significantly with participant's usual function. Missing baseline severities were imputed as mild.
SecondaryNumber of Participants With Laboratory AbnormalitiesUp to 14 days from initiation of study drug infusion
Criteria for laboratory values: Hematology: hemoglobin, hematocrit, red blood cell count \<0.8\*lower limit of normal (LLN), platelets\<0.5\*LLN, \>1.75\*upper limit of normal (ULN), white blood cells count \<0.6\*LLN, \>1.5\*ULN; Liver function: total and direct bilirubin \>1.5\*ULN, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase \>3.0\*ULN, total protein \<0.8\*LLN, \>1.2\*ULN; Renal function: blood urea nitrogen, creatinine \>1.3\*ULN; Electrolytes: sodium \<0.95\*LLN, \>1.05\*ULN, potassium, chloride, calcium, bicarbonate (venous) \<0.9\*LLN, \>1.1\*ULN.
SecondaryPart B: Composite Scores of Cognitive, Language, and Motor Developmental Progress of Participants as Assessed by Bayley Scales of Infant and Toddler Development Third Edition (Bayley-III)Month 12 and 24 after end of study treatment in Part A (Day 1 to 14)
Bayley-III assesses infant and toddler development across five domains: cognitive, language, motor, social-emotional (SE), and adaptive behavior (AB). Assessments of the cognitive, language, and motor domains conducted using items administered to the child; assessments of the SE and AB domains conducted using the primary caregiver's responses to a questionnaire. Score ranges: cognitive scale 0-91, language scale 0-97 and motor scale 0-132, where higher scores indicated better cognitive function, communication and motor skills respectively. Raw scores of cognitive, language and motor domains were converted to composite scores. Composite scores of cognitive, language and motor developmental scales ranged from a scale of 40 to 160, where higher score indicated stronger skills and abilities. In this outcome measure composite scores for infants and toddlers were reported at month 12 and 24.
SecondaryPart B: Composite Scores of Social-Emotional and Adaptive Behavior Questionnaire as Assessed by Bayley Scales of Infant and Toddler Development Third Edition (Bayley-III)Month 24 after end of study treatment in Part A (Day 1 to 14)
The Bayley-III assesses infant and toddler development across five domains: cognitive, language, motor, social-emotional (SE), and adaptive behavior (AB). Assessments of the cognitive, language, and motor domains conducted using items administered to the child; assessments of the SE and AB domains conducted using the primary caregiver's responses to a questionnaire. The questionnaire comprises the SE scale (35 items) and the AB scale (241 items). Raw scores of SE and AB were converted to composite scores. Composite scores for SE and AB scale ranged from 40 to 160, where higher scores indicated better social-emotional skills and adaptive behavior in child. In this outcome measure composite scores for parent/caregiver were reported at month 24.
SecondaryPart B: Number of Participants With Eye Movement Disorders as Assessed by Eye ExaminationMonth 12 and 24 after end of study treatment in Part A (Day 1 to 14)
Standard age-appropriate ophthalmological examinations were used to assess eye movement disorders (presence of amblyopia, strabismus, and nystagmus) at month 12 and 24. In this outcome measure, data have been reported for right and left eye separately. Rows according to eye movement disorder categories at specified time points are reported in this outcome measure, only when there was a non-zero data for at least 1 reporting arm.
SecondaryPart B: Visual Acuity of Verbal Participants as Assessed by Ophthalmological AssessmentMonth 12 and 24 after end of study treatment in Part A (Day 1 to 14)
Standard age-appropriate ophthalmological examinations were used to assess visual acuity (performed differently for children able of verbal interaction) through visual acuity chart (VAC) quantitative, counting finger (CF), hand motion (HM), light perception (LP), no light perception (NLP) and missing at month 12 and 24. In this outcome measure, data have been reported for right and left eye separately. Rows according to visual acuity categories at specified time points are reported in this outcome measure, only when there was a non-zero data for at least 1 reporting arm.
SecondaryPart B: Visual Acuity of Non-Verbal Participants as Assessed by Ophthalmological AssessmentMonth 12 and 24 after end of study treatment in Part A (Day 1 to 14)
Standard age-appropriate ophthalmological examinations were used to assess visual acuity (performed differently for children unable of verbal interaction) through fixates and follows (included central, steady and maintained), light perception (wince to light), no light perception, and missing at month 12 and 24. In this outcome measure, data have been reported for right and left eye separately. Rows according to visual acuity categories at specified time points are reported in this outcome measure, only when there was a non-zero data for at least 1 reporting arm.
SecondaryPart B: Visual Acuity of Verbal Participants as Assessed by LogMAR Through Visual Acuity ChartMonth 12 and 24 after end of study treatment in Part A (Day 1 to 14)
Standard age-appropriate ophthalmological examinations were used to assess visual acuity (performed differently for children able of verbal interaction) at month 12 and 24. Visual acuity (VA) of verbal children was assessed for each eye using the Snellen method, where logarithm of minimum angle of resolution (logMAR) units were derived from the Snellen ratios. Participants had to read letters from the chart at a distance of 20 feet/6 meter or 4 meter. VA (Snellen ratio) = distance between the chart and participant, divided by distance at which participant was able to see/read chart without impairment; expressed as decimal, logMAR = log10 (1/decimal VA). In this outcome measure, data have been reported for right and left eye separately.

Source ClinicalTrials.govtrials-2026-11-12-0.5.0

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license 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.

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