Metoprolol
| Evidence Level: L5 | Predicted Indications: 6 |
Table of Contents
Metoprolol: From Hypertension to Malignant Hypertensive Renal Disease
One-Sentence Summary
Metoprolol is a beta-1 selective blocker whose recorded uses in the knowledge graph include hypertension, acute coronary syndrome and myocardial infarction. The TxGNN model predicts it may be useful for malignant hypertensive renal disease, but no clinical trials and no publications directly study this condition, so the prediction rests on model output alone.
Quick Overview
| Item | Content |
|---|---|
| Original Indication | Hypertension (relation recorded in the knowledge graph; no approved-indication text is available in the local licence records) |
| Predicted New Indication | Malignant hypertensive renal disease |
| TxGNN Prediction Score | 0.9991 |
| Evidence Level | L5 |
| India Market Status | Listed in a compiled Indian medicine price dataset (at least 20) – CDSCO approval status is not included in this data |
| Number of Listed Products | at least 20 |
| Recommended Decision | Hold |
Why is This Prediction Reasonable?
Currently, detailed mechanism of action data is not available. Based on known information, metoprolol is a beta-1 selective adrenergic blocker. Its blood-pressure-lowering effect is recorded for hypertension in the knowledge graph, and mechanistically it may be applicable to hypertensive kidney injury.
Beta-1 blockade lowers heart rate, cardiac output and renin release. Lowering blood pressure and renin activity could plausibly limit hypertensive renal damage. The high TxGNN score most likely reflects closeness to the hypertension relation already recorded for the drug, rather than new information.
There is an important caveat. Malignant hypertension is usually managed acutely with titratable intravenous agents, and beta-blockers are at best adjunctive. No trial or publication supplied for this report tests metoprolol in this condition.
Clinical Trial Evidence
Currently no related clinical trials registered for malignant hypertensive renal disease.
Literature Evidence
Currently no related literature available for malignant hypertensive renal disease.
India Market Information
At least 20 licences are on record, and the list may be partial. All are valid single-ingredient registrations. The records contain no approved-indication text. Five examples:
| Authorization Number | Product Name | Dosage Form | Approved Indication |
|---|---|---|---|
| 73288 | Embeta XR 75mg Tablet | Strip of 15 extended-release tablets | Not stated in the records |
| 94901 | Genericart Metoprolol Succinate 12.5mg Tablet ER | Strip of 10 extended-release tablets | Not stated in the records |
| 6427 | Angibloc 50 Tablet PR | Strip of 10 prolonged-release tablets | Not stated in the records |
| 139154 | Metored 50mg Tablet XL | Strip of 10 extended-release tablets | Not stated in the records |
| 218623 | Topme-XL 50mg Tablet | Strip of 10 extended-release tablets | Not stated in the records |
All listed forms are oral tablets.
Safety Considerations
- Relations recorded in the knowledge graph (not label text): The knowledge graph links metoprolol with contraindication relations to several conditions, including:
- hypotensive disorder
- diabetes mellitus and diabetic ketoacidosis
- liver disease and hepatic encephalopathy
- myasthenia gravis
- pheochromocytoma
- psoriasis
- gout
- systemic lupus erythematosus
- anxiety and dysthymic disorders
- pancreatitis and gallbladder disease
- anuria
These come from the graph and have not been checked against a product label.
- Drug Interactions: 337 interactions are recorded. Most of those listed are Moderate, including epinephrine, bupropion, morphine, cimetidine, the corticosteroids (hydrocortisone, dexamethasone, betamethasone, budesonide, triamcinolone), canagliflozin, dapagliflozin and chlorpropamide. Acetylsalicylic acid and magnesium oxide are Minor.
Please refer to the package insert for label warnings, as none were available for this report.
Conclusion and Next Steps
Decision: Hold
Rationale: The prediction is model-only (L5). No trial or publication directly studies metoprolol in malignant hypertensive renal disease, and standard care for this condition relies on intravenous agents. Metoprolol is widely marketed in India, but this does not support the new use.
To proceed, the following is needed:
- Clinical or observational data on metoprolol in hypertensive renal disease
- Mechanism of action data and the package insert warnings and contraindications
- A comparison against current acute management of malignant hypertension
Other predictions reviewed
| Predicted indication | TxGNN score | Evidence level | Note |
|---|---|---|---|
| Pulmonary hypertension owing to lung disease and/or hypoxia | 0.9991 | L5 | The retrieved articles do not test metoprolol in this condition |
| Pulmonary hypertension with unclear multifactorial mechanism | 0.9991 | L5 | Prediction only |
| Braddock syndrome | 0.9989 | L5 | Prediction only |
| Chronic pulmonary heart disease | 0.9940 | L5 | Trials and studies address heart failure or myocardial infarction with COPD, not this disease itself. Trial NCT02587351 (Phase 3, COPD exacerbation prevention) was terminated and does not support efficacy |
| Trichotillomania | 0.9905 | L5 | Prediction only |
For chronic pulmonary heart disease, the supplied evidence concerns related conditions rather than the disease itself. The level is therefore capped at L5, even though the pack scored it L4.
Disclaimer
This content is for research purposes only and does not constitute medical advice. Clinical validation is required before any clinical application.