Fesoterodine

Evidence Level: L5 Predicted Indications: 10

Table of Contents

  1. Fesoterodine
  2. Fesoterodine: From Overactive Bladder to Polycystic Kidney Disease 3 with or without Polycystic Liver Disease
    1. One-Sentence Summary
    2. Quick Overview
    3. Why is This Prediction Reasonable?
    4. Clinical Trial Evidence
    5. Literature Evidence
    6. EU Market Information
    7. Safety Considerations
    8. Conclusion and Next Steps
    9. Disclaimer

## Pharmacist Assessment Report

Fesoterodine: From Overactive Bladder to Polycystic Kidney Disease 3 with or without Polycystic Liver Disease

One-Sentence Summary

Fesoterodine is a peripherally-selective M3 muscarinic receptor antagonist used for overactive bladder (OAB) and neurogenic detrusor overactivity. The TxGNN model predicts a possible link to Polycystic Kidney Disease 3 with or without Polycystic Liver Disease, but this is currently supported by 0 drug-specific clinical trials and 20 general disease-review publications, none of which mention fesoterodine or antimuscarinic therapy — a pattern the underlying analysis itself flags as a likely TxGNN false positive.


Quick Overview

Item Content
Original Indication Overactive bladder (OAB) / neurogenic detrusor overactivity (based on known drug classification; no formal EU/TW license text available — drug is not currently marketed in this dataset)
Predicted New Indication Polycystic Kidney Disease 3 with or without Polycystic Liver Disease
TxGNN Prediction Score 91.13%
Evidence Level L5
EU Market Status Not marketed (Not marketed)
Number of Authorizations 0
Recommended Decision Hold

Why is This Prediction Reasonable?

Detailed mechanism-of-action data for fesoterodine is not available in this dataset. Based on known pharmacology, fesoterodine is a prodrug that is hydrolyzed to its active metabolite (5-hydroxymethyl tolterodine), a competitive M3 muscarinic receptor antagonist used to reduce involuntary detrusor contractions in OAB.

The theoretical rationale for a link to polycystic kidney/liver disease rests on the fact that M3 receptor and cAMP signaling pathways are involved in cystic epithelial fluid secretion, which is a recognized driver of cyst growth in ADPKD/PLD. This is a plausible but unproven mechanistic hypothesis.

Critically, none of the 20 retrieved publications discuss fesoterodine, antimuscarinic agents, or M3-receptor-targeted therapy in the context of polycystic kidney or liver disease — they are general clinical guidelines and genetics/pathophysiology reviews of PKD/PLD. Combined with the complete absence of registered clinical trials, this indication should be treated as a high-score, low-evidence TxGNN association rather than a validated repurposing signal.


Clinical Trial Evidence

Currently no related clinical trials registered


Literature Evidence

PMID Year Type Journal Key Findings
38958301 2024 Review Am J Gastroenterol ACG guideline on diagnosis/management of focal liver lesions, including polycystic liver disease; no mention of fesoterodine or antimuscarinics
40081770 2025 Review Biochem Pharmacol Extracellular matrix/MMP dynamics as therapeutic targets in PKD/PLD cystogenesis; mechanistic review, no antimuscarinic link discussed
38097330 2023 Review Adv Kidney Dis Health Genetic spectrum and ciliopathy-driven mechanism of PKD/PLD; genetics-focused, no drug data
37208103 2023 Review J Hepatol Multi-organ (liver-kidney) transplantation considerations in polycystic liver-kidney disease
37943238 2023 Review Adv Kidney Dis Health Extrarenal (hepatic) manifestations and complications of ADPKD
35487607 2022 Review Clin Liver Dis ADPKD/PLD clinical course; notes tolvaptan use in ADPKD, no reference to fesoterodine
35728731 2022 Review J Hepatol EASL clinical practice guideline on management of cystic liver diseases; treatment guidance does not include fesoterodine
30819518 2019 Review Lancet General overview of ADPKD pathophysiology and systemic manifestations
29038287 2018 Review J Am Soc Nephrol Genetic complexity of ADPKD/ADPLD across 8 causative genes; mechanistic/genetic review only
40296340 2025 Case Series Ann Transplant Retrospective outcomes of combined liver-kidney transplantation in 9 PLD/PKD patients

EU Market Information

No EU marketing authorizations are on file for Fesoterodine in this dataset — the drug is recorded as not marketed (Not marketed), with 0 registered licenses.


Safety Considerations

Please refer to the SmPC for safety information.


Conclusion and Next Steps

Decision: Hold

Rationale: The top-ranked prediction (Polycystic Kidney Disease 3 with/without Polycystic Liver Disease) has no clinical trials and no drug-specific literature — all 20 retrieved publications are general PKD/PLD reviews that never mention fesoterodine or antimuscarinic mechanisms. This matches a known TxGNN failure mode (high similarity score, no corroborating evidence) rather than a genuine repurposing signal.

To proceed, the following is needed:

  • Drug-specific preclinical or mechanistic data linking M3 antagonism to cyst fluid secretion in PKD/PLD before further investment
  • Fesoterodine’s confirmed mechanism of action (MOA) and formal EU/TW approved-indication text, both currently unavailable
  • TFDA/SmPC warnings and contraindications for a baseline safety assessment (currently blocking, per data gap DG001)

Note: A lower-ranked prediction in the same evidence pack — low compliance bladder (rank 7, score 86.5%, evidence level L3) — is mechanistically coherent (fesoterodine’s core M3-antagonist action directly addresses detrusor overactivity/bladder compliance) and is supported by human urodynamic and clinical literature. That candidate merits a separate, dedicated evaluation as it represents a substantially stronger repurposing opportunity than the top-ranked PKD/PLD prediction.

Disclaimer

This content is for research purposes only and does not constitute medical advice. Clinical validation is required before any clinical application.



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