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vibegron

Sold as Gemtesa. Class: Drugs for urinary frequency and incontinence. First FDA approval 12/23/2020: 6 years on the US market.

This grade answers one narrow question: how strong is the public evidence and safety record behind this drug, and how clean is its money trail and court record? It is not a verdict on whether the drug is right for you.

B

Score breakdown (75/100)

Safety ×35%
A
Evidence ×25%
F
Regulatory ×15%
A
Money & lawsuits ×15%
C
Options ×10%
C

Safety: 96

Evidence: 40

Regulatory history: 95

Money & lawsuits: 70

Options: 70

What the FDA label says

Approved uses

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. 1.2 Overactive Bladder in Adult Males with Benign Prostatic Hyperplasia (BPH) GEMTESA is indicated for the treatment of overactive bladder (OAB) with symptoms of urge urinary incontinence, urgency, and urinary frequency in adult males on pharmacological therapy for benign prostatic hyperplasia (BPH).

Contraindications

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 )

Warnings and precautions

Urinary Retention : Monitor for urinary retention, especially in patients with bladder outlet obstruction and also in patients taking muscarinic antagonist medications for OAB, in whom the risk of urinary retention may be greater. If urinary retention develops, discontinue GEMTESA. ( 5.1 ) Angioedema : Angioedema of the face and/or larynx has been reported with GEMTESA. ( 5.2 ) 5.1 Urinary Retention Urinary retention has been reported in patients taking GEMTESA. The risk of urinary retention may be increased in patients with bladder outlet obstruction and also in patients taking muscarinic antagonist medications for the treatment of OAB. Monitor patients for signs and symptoms of urinary retention, particularly in patients with bladder outlet obstruction or patients taking muscarinic antagonist medications for the treatment of OAB. Discontinue GEMTESA in patients who develop urinary retention [see Adverse Reactions ( 6.1 )] . 5.2 Angioedema Angioedema of the face and/or larynx has been reported with GEMTESA. Angioedema has been reported to occur hours after the first dose or after multiple doses. Angioedema, associated with upper airway swelling, may be life-threatening. If involve...

Adverse reactions (label)

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 . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Overactive Bladder in Adults The safety of GEMTESA was evaluated in a 12-week, double-blind, placebo- and active-controlled study (Study 3003) in patients with OAB [see Clinical Studies ( 14.1 )] . A total of 545 patients received GEMTESA. The majority of the patients were White (78%) and female (85%) with a mean age of 60 years (range 18 to 93 years). Adverse reactions that were reported in Study 3003 at an incidence greate...

Recent major label changes

Indications and Usage, Overactive Bladder in Adult Males with Benign Prostatic Hyperplasia ( 1.2 ) 12/2024 Contraindications ( 4 ) 10/2024 Warnings and Precautions, Angioedema ( 5.2 ) 10/2024

Source: FDA SPL label for GEMTESA (Sumitomo Pharma America, Inc.), effective 20250401. Full label on DailyMed.

Side-effect reports sent to the FDA

These are counts of reports people filed, not rates of harm. Anyone can file one, and nobody checks whether the drug was the cause. Millions of doses are taken for every report sent, so the useful part is how this drug compares with the average across all drugs.

7,986reports that mention this drug
7,978of those blame this drug, not another one the person was taking
30%of reports describe a serious outcome, such as a hospital stay (average for all drugs: 57%)
5.0%of reports include a death, from any cause (average for all drugs: 9.1%)

Problems reported most often

Drug Ineffective · 1,083Diarrhoea · 399Headache · 376Urinary Tract Infection · 349Urinary Retention · 310Death · 287Fatigue · 287Inability To Afford Medication · 266Nausea · 259Constipation · 246Drug Effect Less Than Expected · 233Fall · 221Dizziness · 217Urinary Incontinence · 215Pollakiuria · 210

Reports per year

20192020202120222023202420252026
9192281891,8411,9992,2751,414

4,172 reports blaming this drug for every million Medicare prescriptions filled, which is 1.5× the typical drug on this site. (5,681 reports in 2024–2026, against 1,361,795 Medicare fills in one year. This is the one number here that accounts for how many people take the drug.)

Source: the FDA's Adverse Event Reporting System (FAERS). Reports are voluntary and unverified. Drugs that are prescribed a lot, in the news, or in lawsuits attract more reports, so the percentages are compared with the whole database to correct for that partly, not fully.

Recalls and regulatory record

0recall actions on file
1 / 0brand / generic applications
1label changes since 2021
NoREMS program

Evidence base

24randomized trials (PubMed)
10systematic reviews
16registered trials
90%of completed trials posted results
12%terminated or withdrawn
75%industry-funded

Counts measure how much evidence exists and how transparent it is, not how big the benefit is. For that, ask your prescriber: if 100 people like me took this, how many would get better because of it, and how many would be harmed? (Doctors call these the "number needed to treat" and "number needed to harm.") It differs by condition and is the number drug ads leave out. Sources: PubMed, ClinicalTrials.gov.

Money and lawsuits

In 2024, drug companies reported $1,530,215 in payments to US physicians and hospitals tied to this drug across 53,492 transactions (Gemtesa $1,530,215).

No pending federal MDL names this drug or its brands.

Not named in any federal pharmaceutical settlement of $100M or more on record.

Sources: CMS Open Payments (Sunshine Act); Judicial Panel on Multidistrict Litigation pending docket list; DOJ settlements as tabulated on Wikipedia with links to the primary record. State-court and individual suits are not included.

Who takes it and what it costs

320,270Medicare Part D patients (2024)
1,361,795prescriptions filled
$694average cost per fill
$945Mtotal Medicare spend

Same-class alternatives

1 drug in the same class grades a letter or more higher than vibegron on this site. Worth asking whether one of them would do the same job for you.

darifenacinemeproniumfesoterodineflavoxatepropiverineterodiline

Same ATC pharmacological class, graded ones first, best grade at the top. Being in the same class does not make them interchangeable for your condition; it makes them worth asking about.

Questions to ask your prescriber

  1. The most-reported problems in FDA's adverse event data are diarrhoea, headache, urinary tract infection. How would we recognize and handle those?
  2. Why this one over darifenacin, emepronium, fesoterodine? What would make you pick one of those instead?
  3. There is no generic. Is there an older generic in the same class that works as well for my situation?
  4. The manufacturer pays physicians heavily to promote this drug. Have you received anything from them?
  5. What result are we expecting, by when, and what is the plan if it does not happen?
  6. If 100 people like me took this drug, how many would actually get better because of it, and how many would be harmed by it? (Doctors call these the number needed to treat and the number needed to harm.)