Page last updated: 2024-10-19

nitrites and Familial Primary Pulmonary Hypertension

nitrites has been researched along with Familial Primary Pulmonary Hypertension in 3 studies

Nitrites: Salts of nitrous acid or compounds containing the group NO2-. The inorganic nitrites of the type MNO2 (where M=metal) are all insoluble, except the alkali nitrites. The organic nitrites may be isomeric, but not identical with the corresponding nitro compounds. (Grant & Hackh's Chemical Dictionary, 5th ed)

Familial Primary Pulmonary Hypertension: Familial or idiopathic hypertension in the PULMONARY CIRCULATION which is not secondary to other disease.

Research

Studies (3)

TimeframeStudies, this research(%)All Research%
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's0 (0.00)29.6817
2010's3 (100.00)24.3611
2020's0 (0.00)2.80

Authors

AuthorsStudies
Klinger, JR1
Zuckerbraun, BS1
George, P1
Gladwin, MT1
Malinovschi, A1
Henrohn, D1
Eriksson, A1
Lundberg, JO1
Alving, K1
Wikström, G1

Clinical Trials (3)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
A Dose Escalation Study to Evaluate the Effect of Inhaled Nitrite on Cardiopulmonary Hemodynamics in Subjects With Pulmonary Hypertension[NCT01431313]Phase 248 participants (Actual)Interventional2012-06-30Completed
A Phase 2, Multi-Center, Open-label, Randomized, Parallel-Dose Study to Determine the Safety and Efficacy of AIR001 in Subjects With WHO Group 1 Pulmonary Arterial Hypertension (PAH)[NCT01725256]Phase 229 participants (Actual)Interventional2012-11-30Terminated (stopped due to Terminated early dt to acquisition of Sponsor and change in corporate priorities)
A Phase 2, Multicenter, Open-Label Study to Evaluate the Intermediate/Long Term Safety and Efficacy of AIR001 in Subjects With WHO Group 1 Pulmonary Arterial Hypertension[NCT01725269]Phase 217 participants (Actual)Interventional2013-03-31Terminated (stopped due to Terminated early dt acquisition of Sponsor and change in corporate priorities)
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

Change in Mitochondrial Oxygen Consumption Compared to Baseline After Each Dose of Nitrite

Basal platelet oxygen consumption measured in isolated platelets by extracellular flux analysis (XF24, Seahorse Biosciences, Billerica, MA). (NCT01431313)
Timeframe: Maximal effect at 15 minutes post 45mg or 90mg inhalation vs Pre dose

Interventionpicomoles O2/min (Mean)
WHO Group I Pulmonary Arterial Hypertension (PAH)-17.58
WHO Group II Pulmonary Hypertension (PH)8.62
WHO Group III Pulmonary Hypertension (PH)-11.64

Change in Plasma Nitrite Concentrations in Mixed Venous Blood

Linear mixed effects model across all time points and doses relative to baseline. The mixed effects model takes into account all time points combined (repeated measures) and has been extensively described for clinical trials (please see references). In this model, the effect of treatment on hemodynamics (measured at 0, 15, 30, 45, and 60 minutes after 45mg followed by same times after 90 mg dose) was compared with baseline values. We assessed the overall linear trend of treatment. The effect of treatment on hemodynamics in each patient group was assessed separately in mixed-effects models. The reported mean is the change from baseline of plasma nitrite concentrations in mixed venous blood over all subsequent times and doses (beta from the mixed effects model), and is reported as the mean and 95% confidence interval. (NCT01431313)
Timeframe: Pre-dose, 15 minutes post 45mg and 90mg inhalation

Interventionmicromolar (Mean)
WHO Group I Pulmonary Arterial Hypertension (PAH)9.9
WHO Group II Pulmonary Hypertension (PH)7.0
WHO Group III Pulmonary Hypertension (PH)7.4

Change in Pulmonary Artery Occlusion (Capillary) Pullback Nitrite

Linear mixed effects model across all time points and doses relative to baseline. The mixed effects model takes into account all time points combined (repeated measures) and has been extensively described for clinical trials (please see references). In this model, the effect of treatment on hemodynamics (measured at 0, 15, 30, 45, and 60 minutes after 45mg followed by same times after 90 mg dose) was compared with baseline values. We assessed the overall linear trend of treatment. The effect of treatment on hemodynamics in each patient group was assessed separately in mixed-effects models. The reported mean is the change from baseline of pulmonary artery occlusion (capillary) pullback nitrite concentration over all subsequent times and doses (beta from the mixed effects model), and is reported as the mean and 95% confidence interval. (NCT01431313)
Timeframe: Pre-dose, 15 minutes post 45mg and 90mg inhalation

Interventionmicromolar (Mean)
WHO Group I Pulmonary Arterial Hypertension (PAH)9.2
WHO Group III Pulmonary Hypertension (PH)2.4

Change in Pulmonary Vascular Impedance / Wave Intensity

Characteristic impedance (Zc) which may be related to compliance effects in the large, conduit arteries. (NCT01431313)
Timeframe: Pre dose and 60 minutes post last dosage inhaled

Interventiondyne*sec/cm5 (Median)
WHO Group I Pulmonary Arterial Hypertension (PAH)-0.004
WHO Group II Pulmonary Hypertension (PH)-0.34
WHO Group III Pulmonary Hypertension (PH)-0.20

Change in Pulmonary Vascular Resistance (PVR)

Linear mixed effects model across all time points and doses relative to baseline. The mixed effects model takes into account all time points combined (repeated measures) and has been extensively described for clinical trials (please see references). In this model, the effect of treatment on hemodynamics (measured at 0, 15, 30, 45, and 60 minutes after 45mg followed by same times after 90 mg dose) was compared with baseline values. We assessed the overall linear trend of treatment. The effect of treatment on hemodynamics in each patient group was assessed separately in mixed-effects models. Since pulmonary vascular resistance (PVR) was not normally distributed, it was transformed to natural log prior to analysis. The reported mean is the change from baseline of PVR over all subsequent times and doses (beta from the mixed effects model, converted back from natural log to Woods units), and is reported as the mean and 95% confidence interval. (NCT01431313)
Timeframe: Time zero, 15, 30, 45 and 60 minutes after nebulization of 45mg followed by 90 mg dose

InterventionWoods units (Mean)
WHO Group I Pulmonary Arterial Hypertension (PAH)0.77
WHO Group II Pulmonary Hypertension (PH)0.40
WHO Group III Pulmonary Hypertension (PH)-0.39

Change in Systemic Blood Pressure (Mean Arterial Pressure, MAP)

Linear mixed effects model across all time points and doses relative to baseline. The mixed effects model takes into account all time points combined (repeated measures) and has been extensively described for clinical trials (please see references). In this model, the effect of treatment on hemodynamics (measured at 0, 15, 30, 45, and 60 minutes after 45mg followed by same times after 90 mg dose) was compared with baseline values. We assessed the overall linear trend of treatment. The effect of treatment on hemodynamics in each patient group was assessed separately in mixed-effects models. The reported mean is the change from baseline of MAP over all subsequent times and doses (beta from the mixed effects model), and is reported as the mean and 95% confidence interval. (NCT01431313)
Timeframe: Time zero, 15, 30, 45 and 60 minutes after nebulization of 45mg followed by 90 mg dose

InterventionmmHg (Mean)
WHO Group I Pulmonary Arterial Hypertension (PAH)-5.1
WHO Group II Pulmonary Hypertension (PH)-3.4
WHO Group III Pulmonary Hypertension (PH)-9.5

Change in Systemic Vascular Resistance (SVR)

Linear mixed effects model across all time points and doses relative to baseline. The mixed effects model takes into account all time points combined (repeated measures) and has been extensively described for clinical trials (please see references). In this model, the effect of treatment on hemodynamics (measured at 0, 15, 30, 45, and 60 minutes after 45mg followed by same times after 90 mg dose) was compared with baseline values. We assessed the overall linear trend of treatment. The effect of treatment on hemodynamics in each patient group was assessed separately in mixed-effects models. Since systemic vascular resistance was not normally distributed, it was transformed to natural log prior to analysis. The reported mean is the change from baseline of SVR over all subsequent times and doses (beta from the mixed effects model), and is reported as the mean and 95% confidence interval. (NCT01431313)
Timeframe: Time zero, 15, 30, 45 and 60 minutes after nebulization of 45mg followed by 90 mg dose

InterventionmmHg⋅min/L (Mean)
WHO Group I Pulmonary Arterial Hypertension (PAH)-0.43
WHO Group II Pulmonary Hypertension (PH)1.19
WHO Group III Pulmonary Hypertension (PH)-2.04

Time to Maximum Pulmonary Vascular Resistance (PVR) Decrease

Time in minutes to maximum PVR decrease. During study procedure, hemodynamics were measured at 0, 15, 30, 45, and 60 minutes after 45 mg followed by same times after 90 mg dose. The time point at which each patient's maximal decrease in PVR occurred was recorded and reported as the mean and standard deviation in each cohort. (NCT01431313)
Timeframe: 0, 15, 30, 45, and 60 minutes after 45 mg followed by same times after 90 mg dose

Interventionminutes (Mean)
WHO Group I Pulmonary Arterial Hypertension (PAH)42.0
WHO Group II Pulmonary Hypertension (PH)33.0
WHO Group III Pulmonary Hypertension (PH)42.5

Reviews

1 review available for nitrites and Familial Primary Pulmonary Hypertension

ArticleYear
Nitrite in pulmonary arterial hypertension: therapeutic avenues in the setting of dysregulated arginine/nitric oxide synthase signalling.
    Cardiovascular research, 2011, Feb-15, Volume: 89, Issue:3

    Topics: Arginine; Familial Primary Pulmonary Hypertension; Humans; Hypertension, Pulmonary; Nitric Oxide; Ni

2011
Nitrite in pulmonary arterial hypertension: therapeutic avenues in the setting of dysregulated arginine/nitric oxide synthase signalling.
    Cardiovascular research, 2011, Feb-15, Volume: 89, Issue:3

    Topics: Arginine; Familial Primary Pulmonary Hypertension; Humans; Hypertension, Pulmonary; Nitric Oxide; Ni

2011
Nitrite in pulmonary arterial hypertension: therapeutic avenues in the setting of dysregulated arginine/nitric oxide synthase signalling.
    Cardiovascular research, 2011, Feb-15, Volume: 89, Issue:3

    Topics: Arginine; Familial Primary Pulmonary Hypertension; Humans; Hypertension, Pulmonary; Nitric Oxide; Ni

2011
Nitrite in pulmonary arterial hypertension: therapeutic avenues in the setting of dysregulated arginine/nitric oxide synthase signalling.
    Cardiovascular research, 2011, Feb-15, Volume: 89, Issue:3

    Topics: Arginine; Familial Primary Pulmonary Hypertension; Humans; Hypertension, Pulmonary; Nitric Oxide; Ni

2011
Nitrite in pulmonary arterial hypertension: therapeutic avenues in the setting of dysregulated arginine/nitric oxide synthase signalling.
    Cardiovascular research, 2011, Feb-15, Volume: 89, Issue:3

    Topics: Arginine; Familial Primary Pulmonary Hypertension; Humans; Hypertension, Pulmonary; Nitric Oxide; Ni

2011
Nitrite in pulmonary arterial hypertension: therapeutic avenues in the setting of dysregulated arginine/nitric oxide synthase signalling.
    Cardiovascular research, 2011, Feb-15, Volume: 89, Issue:3

    Topics: Arginine; Familial Primary Pulmonary Hypertension; Humans; Hypertension, Pulmonary; Nitric Oxide; Ni

2011
Nitrite in pulmonary arterial hypertension: therapeutic avenues in the setting of dysregulated arginine/nitric oxide synthase signalling.
    Cardiovascular research, 2011, Feb-15, Volume: 89, Issue:3

    Topics: Arginine; Familial Primary Pulmonary Hypertension; Humans; Hypertension, Pulmonary; Nitric Oxide; Ni

2011
Nitrite in pulmonary arterial hypertension: therapeutic avenues in the setting of dysregulated arginine/nitric oxide synthase signalling.
    Cardiovascular research, 2011, Feb-15, Volume: 89, Issue:3

    Topics: Arginine; Familial Primary Pulmonary Hypertension; Humans; Hypertension, Pulmonary; Nitric Oxide; Ni

2011
Nitrite in pulmonary arterial hypertension: therapeutic avenues in the setting of dysregulated arginine/nitric oxide synthase signalling.
    Cardiovascular research, 2011, Feb-15, Volume: 89, Issue:3

    Topics: Arginine; Familial Primary Pulmonary Hypertension; Humans; Hypertension, Pulmonary; Nitric Oxide; Ni

2011

Other Studies

2 other studies available for nitrites and Familial Primary Pulmonary Hypertension

ArticleYear
Plasma nitrite/nitrate levels: a new biomarker for pulmonary arterial hypertension?
    The European respiratory journal, 2016, Volume: 48, Issue:5

    Topics: Biomarkers; Familial Primary Pulmonary Hypertension; Humans; Hypertension, Pulmonary; Nitrates; Nitr

2016
Increased plasma and salivary nitrite and decreased bronchial contribution to exhaled NO in pulmonary arterial hypertension.
    European journal of clinical investigation, 2011, Volume: 41, Issue:8

    Topics: Adult; Aged; Breath Tests; Bronchi; Case-Control Studies; Exhalation; Familial Primary Pulmonary Hyp

2011