Overview
11 DESCRIPTION Vibegron is a selective beta-3 adrenergic agonist. The chemical name is (6S)-N-[4-[[(2S,5R)-5-[(R)-hydroxy(phenyl)methyl]pyrrolidin-2-yl]methyl]phenyl]-4-oxo-7,8-dihydro-6H-pyrrolo[1,2-a]pyrimidine-6-carboxamide having a molecular formula of C 26 H 28 N 4 O 3 and a molecular weight of 444.538 g/mol.
Mechanism of Action
12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Vibegron is a selective human beta-3 adrenergic receptor agonist. Activation of the beta-3 adrenergic receptor increases bladder capacity by relaxing the detrusor smooth muscle during bladder filling. 12.2 Pharmacodynamics Vibegron's exposure-response relationship and the time course of pharmacodynamic response are not fully characterized. Blood Pressure In a 4-week, randomized, placebo-controlled, ambulatory blood pressure study in OAB patients (n=200), daily treatment with GEMTESA 75 mg was not associated with clinically significant changes in blood pressure. Subjects enrolled in this study had a mean age of 59 years and 75% were female.
Indications
- 1 INDICATIONS AND USAGE GEMTESA is a beta-3 adrenergic agonist indicated for the treatment of: overactive bladder (OAB) with symptoms of urge urinary incontinence, urgency, and urinary frequency in adults. ( 1.1 ) overactive bladder (OAB) with symptoms of urge urinary incontinence, urgency, and urinary frequency in adult males on pharmacological therapy for benign prostatic hyperplasia (BPH). ( 1.2 ) 1.1 Overactive Bladder in Adults GEMTESA ® is indicated for the treatment of overactive bladder (OAB) with symptoms of urge urinary incontinence, urgency, and urinary frequency in adults. 1.
Common Doses
- 75 mg
- 15 mL
Dosage
2 DOSAGE AND ADMINISTRATION The recommended dose is one 75 mg tablet orally once daily. ( 2.1 ) Swallow tablet whole with water. ( 2.1 ) Tablet may be crushed and mixed with applesauce. ( 2.1 ) 2.1 Recommended Dosage The recommended dosage of GEMTESA is one 75 mg tablet orally, once daily with or without food. Swallow GEMTESA tablets whole with a glass of water. In adults, GEMTESA tablets also may be crushed, mixed with a tablespoon (approximately 15 mL) of applesauce and taken immediately with a glass of water [see Clinical Pharmacology ( 12.3 )] .
Contraindications
- 4 CONTRAINDICATIONS GEMTESA is contraindicated in patients with known hypersensitivity to vibegron or any components of GEMTESA. Hypersensitivity reactions, such as angioedema, have occurred [see Warnings and Precautions ( 5.2 ) and Adverse Reactions ( 6.2 )] . Do not use if prior hypersensitivity reaction to vibegron or any components of the product. ( 4 )
Side Effects
- 6 ADVERSE REACTIONS The following clinically significant adverse reaction is described elsewhere in the labeling: Urinary retention [see Warnings and Precautions ( 5.1 )] Most common adverse reactions (≥2%) reported with GEMTESA were headache, urinary tract infection, nasopharyngitis, diarrhea, nausea, and upper respiratory tract infection. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Sumitomo Pharma America, Inc. at 1-833-876-8268 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.
Interactions
- 7 DRUG INTERACTIONS Concomitant use of GEMTESA increases digoxin maximal concentrations (C max ) and systemic exposure as assessed by area under the concentration-time curve (AUC) [see Clinical Pharmacology ( 12.3 )] . Serum digoxin concentrations should be monitored before initiating and during therapy with GEMTESA and used for titration of the digoxin dose to obtain the desired clinical effect. Continue monitoring digoxin concentrations upon discontinuation of GEMTESA and adjust digoxin dose as needed. Digoxin : Measure serum digoxin concentrations before initiating GEMTESA.