ArticleDrug safety2026
A Text-Mining Algorithm for Identifying Drug Pairs Potentially Involved in Prescribing Cascades: Development and Internal Validation Within the Prescribing Inappropriateness Assessment (PINA) Digital Tool.
Article in Drug safety, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPrescribing cascades (PCs) occur when an adverse drug reaction (ADR) is intentionally or unintentionally treated with an additional medication, potentially perpetuating inappropriate polypharmacy. Digital tools that systematically support the identification of potential PCs during medication review are lacking. Here, we describe the development of an algorithm designed to identify drug pairs potentially compatible with PCs and evaluate its classification performance.
methodsThe algorithm was developed as a component of the Prescribing INappropriateness Assessment (PINA) digital tool, a software platform designed to support clinicians in conducting medication reviews. The algorithm logic identifies potential PCs by detecting intersections between ADRs and therapeutic indications extracted from Italian Summaries of Product Characteristics (SmPCs) and encoded as Medical Dictionary for Regulatory Activities (MedDRA) terms using a natural language processing pipeline. Four algorithm configurations were tested, differing in the MedDRA semantic levels used for matching: (1) Preferred Terms (PTs) only; (2) PTs with semantic extension to High Level Terms (HLTs); (3) PTs with extension to Standardised MedDRA Queries (SMQs); and (4) PTs with combined HLT/SMQ extension. Performance was assessed against a reference standard comprising 69 literature-supported positive drug pairs and 138 randomly generated negative drug pairs in a 1:2 ratio. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), accuracy, F
resultsAll models demonstrated excellent specificity (≥ 99%). Sensitivity increased with semantic expansion: 50.7% for PT-only matching, 73.9% for PT+HLT, 68.1% for PT+SMQ, and 85.5% for PT+HLT/SMQ. The combined HLT/SMQ extension model achieved the highest overall performance, with an accuracy of 94.7%, a PPV of 98.3%, an NPV of 93.2%, an F
conclusionsThe newly developed algorithm demonstrated high classification performance, particularly when PT-level matching was extended using both HLTs and SMQs. This MedDRA-driven approach based on regulatory data may represent a scalable and reproducible strategy for supporting structured medication review and facilitating the recognition and clinical evaluation of potential PCs.
Identifiers
42763348What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.