Safety and Efficacy Study of Nitric Oxide in Patients Going Through Lung Transplantation

2014-08-27 03:34:40 | BioPortfolio


The purpose of this study is to assess the safety and efficacy of inhaled nitric oxide in prevention of lung graft dysfunction due to ischemia-reperfusion


- Pilot, single-center, prospective, randomized, parallel-group, controlled, open-label trial.

- Sixty lung donors will be analyzed, making a comparative study between donors receiving NO for 3 hours prior to removal of the organ versus a control group to which NO will not be administered.

- A Swan-Ganz catheter will be placed to determine PVR, PAP, MV, and PCP; and blood gases will be done after arterial cannulation to determine FiO2/PaO2 hourly. Also, standard blood chemistry, hematology, coagulation parameters, and arterial blood gas.

- Prior to NO administration and before procurement, a BAL (bronchoalveolar lavage) will be done to determine the presence of leukocytes, predominantly neutrophils, IL-1, IL-6, IL-8, IL-10, TNF, and proteins as well as obtaining secretions for culture.

- The dosage of NO will be 10ppm, with NO2 and methemoglobinemia being monitored exhaustively.

- In the operating room and prior to lung removal, a new BAL will be done and the anti-inflammatory agents described above will be determined.

- Organ removal and the preservation fluid used will be standard, according to the established surgical protocol.

- Anesthesia: methylprednisolone 1 g will be administered before organ extraction; hemodynamic determinations of mAP, PAP, CVP, MV, and hourly urinary output and arterial blood gas.

- Hemodynamic and respiratory determinations will be made in the lung receptors: mAP, mPAP, PVR, MV, PCP, DO2, Qs/Qt, and CVP as well as gas determinations every 30 minutes, blood chemistry, hematology, and coagulation immediately after reperfusion. A BAL will also be done after anesthesia induction.

- Incidents during surgery will be recorded, especially the need for extracorporeal circulation as well as transfusion requirements and ischemia times.

- After surgery, another BAL will be done both 24 hours and 48 hours after return to the Recovery Unit. Hemodynamic and respiratory parameters will be monitored every 4 hours for the first 48 hours after surgery, as well as arterial blood gases.

- Blood chemistry will be done every 12 hours along with coagulation and hematology tests.

- Chest x-ray on admission and daily to determine the degree of the patient's edema over the first 48 hours.

- Drug administration: the NO will be administered in the respirator intake at a dose of 10ppm for 48 hours. A monitor will be used showing the gas dosage continuously, as well as NO2 and methemoglobinemia.

- The inflammatory agents (TNF, IL-1, IL-2, IL-6, IL-8, and IL-10) will be determined with the ELISA technique.

Study Design

Allocation: Randomized, Control: Uncontrolled, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Lung Transplantation


Nitric oxide, Nitric oxide


Hospital General La Fe




INO Therapeutics

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:34:40-0400

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Medical and Biotech [MESH] Definitions

A free radical gas produced endogenously by a variety of mammalian cells, synthesized from ARGININE by NITRIC OXIDE SYNTHASE. Nitric oxide is one of the ENDOTHELIUM-DEPENDENT RELAXING FACTORS released by the vascular endothelium and mediates VASODILATION. It also inhibits platelet aggregation, induces disaggregation of aggregated platelets, and inhibits platelet adhesion to the vascular endothelium. Nitric oxide activates cytosolic GUANYLATE CYCLASE and thus elevates intracellular levels of CYCLIC GMP.

An NADPH-dependent enzyme that catalyzes the conversion of L-ARGININE and OXYGEN to produce CITRULLINE and NITRIC OXIDE.

A CALCIUM-dependent, constitutively-expressed form of nitric oxide synthase found primarily in ENDOTHELIAL CELLS.

A CALCIUM-dependent, constitutively-expressed form of nitric oxide synthase found primarily in NERVE TISSUE.

A CALCIUM-independent subtype of nitric oxide synthase that may play a role in immune function. It is an inducible enzyme whose expression is transcriptionally regulated by a variety of CYTOKINES.

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