TheraRadar
Data updated: May 26, 2026

GENOSYL (nitric oxide)

Cardiovascular Approved 2019-12-20

Genosyl is a vasodilator indicated to improve oxygenation and reduce the need for extracorporeal membrane oxygenation (ECMO) in term and near-term (>34 weeks gestation) neonates with hypoxic respiratory failure associated with clinical or echocardiographic evidence of pulmonary hypertension. It is used in conjunction with ventilatory support and other appropriate pharmacological agents.

Source: FDA Label • VERO BIOTECH INC • Vasodilator

How GENOSYL Works

Nitric oxide relaxes vascular smooth muscle by binding to the heme moiety of cytosolic guanylate cyclase, which increases intracellular levels of cyclic guanosine 3',5'-monophosphate (cGMP), resulting in vasodilation. When inhaled, it selectively dilates the pulmonary vasculature. It has minimal systemic effects because it is rapidly inactivated by hemoglobin scavenging. Genosyl improves the partial pressure of arterial oxygen (PaO2) by redistributing pulmonary blood flow away from lung regions with low ventilation/perfusion (V/Q) ratios toward better-ventilated areas.

1
Indication
--
Phase 3 Trials
6
Years on Market

Details

Status
Prescription
First Approved
2019-12-20
Patent Cliff
2040

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Routes
INHALATION
Dosage Forms
GAS

Companies

Active Ingredient: NITRIC OXIDE

GENOSYL Approval History

2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
1 FDA actions from 2019 to 2019
Dec 2019 ORIGINAL
Update · Type 5 - New Formulation or New Manufacturer

What GENOSYL Treats

2 indications

GENOSYL is approved for 2 conditions since its original approval in 2019. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Hypoxic Respiratory Failure
  • Pulmonary Hypertension
Source: FDA Label

GENOSYL Competitive Set

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

Drugs Similar to GENOSYL

3 of 4

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

INOMAX
NITRIC OXIDE
2 shared
MALLINCKRODT IRELAND
Shared indications:
Hypoxic Respiratory FailurePulmonary Hypertension
ULSPIRA
NITRIC OXIDE
2 shared
AIRGAS THERAP
Shared indications:
Hypoxic Respiratory FailurePulmonary Hypertension
TYVASO DPI
TREPROSTINIL
1 shared
UNITED THERAP
Shared indications:
Pulmonary Hypertension
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Clinical Trial Registry

42 trials
Trial Sponsor ID Phase Status Title
NCT04305457 NoCovid results posted NOgas mildCOVID-19 Ph 2 terminated Nitric Oxide Gas Inhalation Therapy for Mild/Moderate COVID-19
NCT02836899 MGHK23 results posted MGH K23 K23HL128882-01 Ph 3 completed Effect of Nitric Oxide in Cardiac Surgery Patients With Endothelial Dysfunction.
NCT06622291 2024-16-20240626 Z191100006619095, 2025AZB6001 Ph 4 completed Perioperative Nitric Oxide Prevents Acute Kidney Injury in Acute Type A Aortic Dissection Patients
NCT03748082 EndoNO Ph 2 withdrawn Effects of Nitric Oxide on the Endothelium During Hemolysis.
NCT04022161 RedOx-NO Ph 2 withdrawn Effects of Prolonged Delivery of Nitric Oxide Gas on Plasma Reduction-Oxidation Reactions in Cardiac Surgical Patients
NCT05109611 results posted COVID-NONS-04 Ph 3 terminated Nitric Oxide Nasal Spray (NONS) as Prevention for Treatment of Individuals at Risk of Exposure to COVID-19 Infection
NCT03023449 DOMINO 824559 Ph 2 active not recruiting Diffuse Optical Monitoring With Inhaled Nitric Oxide
NCT04216927 MOD00004808 Ph 3 recruiting NO During CPB in Neonates to Reduce Risk of AKI
NCT01165047 results posted 1.0 Ph 2 completed Nitric Oxide, GeNO Nitrosyl Delivery System
NCT04181359 iNO Pro00092702 Ph 1, Ph 2 withdrawn The Effect of Inhaled Nitric Oxide on Dyspnea and Exercise Tolerance in Interstitial Lung Disease.
NCT04231773 iNO Pro00092939 Ph 1, Ph 2 completed The Effect of Inhaled Nitric Oxide on Maximal Oxygen Consumption During Exercise in Hypoxia
NCT06120816 NORM-POC-01 Ph 1 completed Nitric Oxide Releasing Mouthwash (NORM) for the Management of Oropharyngeal Candidiasis
NCT02295566 RATNO RHM CHI0548 2010-023529-39, 11/H0502/7 Ph 2 completed RATNO, Reducing Antibiotic Tolerance Using Nitric Oxide in CF - a Phase 2 Pilot Study
NCT03661385 NASO 38017 ACTRN12618000089235p Ph 3 completed Nitric Oxide During Bypass for Arterial Switch Operation
NCT05877313 HPV-Warts-01 Ph 2 completed Nitric Oxide Releasing Solution (NORS) For The Treatment Of Human Papillomavirus(HPV) Verrucae Plantaris (Plantar Warts)
NCT03679312 iNO Pro00078715 Ph 1, Ph 2 completed The Effect of Inhaled Nitric Oxide on Dyspnea and Exercise Tolerance in COPD
NCT05599919 GPL/CT/2021/004/III Ph 3 completed Nitric Oxide Nasal Spray (NONS) To Treat and Prevent the Exacerbation of Infection in Individuals With Mild COVID-19
NCT04163978 NOSi-CTP-02 Ph 2 completed Nitric Oxide Releasing Sinus Irrigation (NOSi) to Treat Recalcitrant Chronic Rhinosinusitis (RCRS)
NCT03079102 iNOOHCA results posted PRO16100408 Ph 2 terminated Inhaled Nitric Oxide After Out-of-Hospital Cardiac Arrest
NCT00848731 CMC_kline_iNO1.1 Ph 1 completed Phase I Trial of Inhaled Nitric Oxide to Treat Acute Pulmonary Embolism
NCT04388683 NO-COVID-19 results posted STUDY00000554 Ph 2 terminated Inhaled Nitric Oxide for Preventing Progression in COVID-19
NCT04383002 20-5449 Ph 1 completed High Dose Inhaled Nitric Oxide for COVID-19 (ICU Patients)
NCT03455218 results posted 1111115-1NO in CPB 001 Ph 2, Ph 3 completed Nitric Oxide Administration During Pediatric Cardiopulmonary Bypass Surgery to Prevent Platelet Activation
NCT04060979 AIT_CP_BRONC_03.01 Ph 2 completed Evaluation of Two Doses of Nitric Oxide (NO) Given Intermittently Via Inhalation to Subjects With Bronchiolitis
NCT04290858 NoCovid COVID19 NOgas mild Ph 2 withdrawn Nitric Oxide Gas Inhalation Therapy for Mild/Moderate COVID19 Infection
NCT03527381 NephroNO NephroNO Ph 1, Ph 2 completed Nitric Oxide in Cardiopulmonary Bypass for Renal Protection in Cardiac Surgery
NCT02871011 results posted SAN-CPT-01 Ph 2 completed Nitric Oxide Releasing Solution (NORS) Footbath to Treat Athlete's Foot
NCT03053388 AIT_CP_BRONC02.01 Ph 3 completed Evaluation of the Efficacy Safety and Tolerability of Nitric Oxide Given Intermittently Via Inhalation to Subjects With Bronchiolitis
NCT03208764 AIT_ CP_ CFNTM_01 Ph 2 completed Inhaled Nitric Oxide for Patients With MABSC
NCT03500783 NOinCPB NOinCPB Ph 1, Ph 2 completed Nitric Oxide-mediated Cardioprotection During Cardiac Surgery With Cardiopulmonary Bypass
NCT02734953 results posted RC6167 Ph 2 completed Effect of iNO on Invasively Derived Pulmonary Pressures in Patients With PAH
NCT01717209 results posted 25471 Ph 4 completed Inhaled Nitric Oxide and Inhaled Prostacyclin After Cardiac Surgery for Heart Transplant or LVAD Placement
NCT01958944 AIT_ CP_ CF 01 Ph 1, Ph 2 completed Evaluation of the Safety and Tolerability of Inhaled Nitric Oxide to Subjects With Cystic Fibrosis
NCT01768884 AIT_CP_BRONC01.01 Ph 1, Ph 2 completed Evaluation of the Safety and Tolerability of Nitric Oxide (NO) Via Inhalation to Subjects With Bronchiolitis
NCT02217683 BloodiNO Ph 2 withdrawn Use of Inhaled Nitric Oxide to Prevent Pulmonary Hypertension Associated to Stored Blood Transfusion
NCT00585013 results posted CHECP1 Ph 1, Ph 2 completed Inhaled NO as an Anti-inflammatory and Anti-reperfusion Agent in Infants and Children Undergoing Cardiopulmonary Bypass
NCT01398384 NOMI LCC2010.01 Ph 2 completed Effects of Nitric Oxide for Inhalation in Myocardial Infarction Size
NCT00748423 INOSTA P060701 Ph 2, Ph 3 completed Effect of Inhaled Nitric Oxide in Acute Chest Syndrome (INOSTA Study)
NCT01503801 NO-BPD FudanU Ph 2, Ph 3 completed Inhaled Nitric Oxide to Prevent and Treat Bronchopulmonary Dysplasia
NCT00771368 CTP 7 Ph 1, Ph 2 terminated Reduction of Bacteria in MRSA Positive Ulcers
NCT00790608 CTP 5 EudraCT 2008-001287-36 Ph 2 terminated Clinical Trial on the Reduction of Methicillin Resistant Staphylococcus Aureus (MRSA)
NCT00771342 CTP 6 Ph 2 completed Efficacy Study to Evaluate the Effect of Nitric Oxide on the Treatment of Tinea Pedis (Athlete's Foot)
🔬

Active Pipeline

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

GENOSYL FDA Label Details

Indications & Usage

FDA Label (PDF)

GENOSYL is indicated for the treatment of Hypoxic Respiratory Failure; Pulmonary Hypertension.

View full patent landscape →
14 OB patents · 9 families · 194 international docs across 6 countries

GENOSYL Patents & Exclusivity

Latest Patent: Jul 2040

Patents (14 active)

US11672938 Expires Jul 22, 2040
US10213572 Expires Feb 12, 2036
US10737051 Expires Oct 20, 2035
US8607785 Expires Jul 14, 2030
US11103669 Expires Jun 21, 2030
US11511252 Expires Sep 21, 2029
US9604028 Expires Aug 13, 2029
US8944049 Expires Aug 13, 2029
US10926054 Expires Aug 13, 2029
US9701538 Expires Jan 28, 2029
US7560076 Expires Apr 21, 2027
US7947227 Expires Oct 17, 2026
US7618594 Expires Oct 17, 2026
US8057742 Expires Jan 18, 2026
Source: FDA Orange Book

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Patent Timeline

  • Cliff: 2040
  • 14 active patents

Trial Analysis

  • Clinical trial tracking
  • Development stage analysis

Competitive Landscape

  • 4 similar drugs
  • Same target/indication analysis
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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.