Active Ingredient History
Vardenafil (Levitra) is an oral therapy for the treatment of erectile dysfunction. It is a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). Penile erection is a hemodynamic process initiated by the relaxation of smooth muscle in the corpus cavernosum and its associated arterioles. During sexual stimulation, nitric oxide is released from nerve endings and endothelial cells in the corpus cavernosum. Nitric oxide activates the enzyme guanylate cyclase resulting in increased synthesis of cyclic guanosine monophosphate (cGMP) in the smooth muscle cells of the corpus cavernosum. The cGMP in turn triggers smooth muscle relaxation, allowing increased blood flow into the penis, resulting in erection. The tissue concentration of cGMP is regulated by both the rates of synthesis and degradation via phosphodiesterases (PDEs). The most abundant PDE in the human corpus cavernosum is the cGMPspecific phosphodiesterase type 5 (PDE5); therefore, the inhibition of PDE5 enhances erectile function by increasing the amount of cGMP. NCATS
Drug Pricing (per unit)
Note: This drug pricing data is preliminary, incomplete, and may contain errors.
Organization | Org Type | FDA approvals | Clinical Trials involvement | Org ID | Force Sort |
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Organization | Org Type | FDA approvals | Clinical Trials involvement | Org ID | Force Sort |
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Acquired Immunodeficiency Syndrome (Phase 4)
Brain Neoplasms (Early Phase 1)
Cystic Fibrosis (Phase 2)
Depression (Phase 3)
Diabetes Mellitus (Phase 3)
Diabetes Mellitus, Type 2 (Phase 2)
Endothelial Cells (Phase 4)
Erectile Dysfunction (Phase 4)
Fibrosis (Phase 4)
Genetic Diseases, Inborn (Phase 1)
Glioma (Early Phase 1)
Healthy Volunteers (Phase 1)
Hypertension (Phase 4)
Hypertension, Pulmonary (Phase 3)
Hypogonadism (Phase 4)
Metabolic Syndrome (Phase 4)
Neoplasm Metastasis (Early Phase 1)
Pharmacokinetics (Phase 1)
Prostatic Hyperplasia (Phase 2)
Pulmonary Arterial Hypertension (Phase 4)
Raynaud Disease (Phase 2/Phase 3)
Reperfusion Injury (Phase 1)
Safety (Phase 4)
Sexual Dysfunction, Physiological (Phase 4)
Spinal Cord Injuries (Phase 4)
Tinnitus (Phase 2)
Urinary Bladder (Phase 2)
Urinary Bladder, Overactive (Phase 2)
Trial | Phase | Start Date | Organizations | Indications |
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