Estimation of the Dose-Dependency of Systemic Adverse Drug Reactions during the Subtherapeutic Administration of Various Drugs
10.11256/jjdi.17.77
- VernacularTitle:常用量以下の曝露量における全身性副作用の用量依存性の推定
- Author:
Rieko Mitsui
;
Takeshi Akiyoshi
;
Ayuko Imaoka
;
Mayumi Mochizuki
;
Hisakazu Ohtani
- Publication Type:Journal Article
- Keywords:
ADR;
dose-response;
AUC;
NSAIDs;
β-antagonists
- From:Japanese Journal of Drug Informatics
2015;17(2):77-86
- CountryJapan
- Language:English
-
Abstract:
Objective: Clinical trials are designed to clarify the dose-dependency of drugs. However, the dose-dependency of adverse drug reactions (ADR), especially in the subtherapeutic range, often remains unclear. Whether decreasing a drug’s dose would reduce the risk of ADR is of interest to both clinicians and regulators. This study aimed to clarify the dose-dependency of ADR during subtherapeutic exposure to non-steroidal anti-inflammatory drugs, immunosuppressants, β-adrenoceptor antagonists, or corticosteroids.
Methods: Data about the ADR risk profiles and the area under the concentration curve (AUC) values of the examined drugs during their subtherapeutic administration, e.g., after their topical or low-dose oral administration, were collected from the literature and compared with data obtained during the therapeutic administration of the drugs; i.e., at the standard oral dosage.
Results: The drugs that exhibited AUC of ≥20% during their therapeutic administration continued to cause significant systemic ADR during their subtherapeutic administration. Whilst the drugs that demonstrated AUC of 3-20% during their therapeutic administration continued to cause systemic ADR during their subtherapeutic administration, the ADR tended to be less frequent.
Conclusion: The dose-dependency of ADR can be estimated by comparing the AUC and ADR risk profile data for a drug obtained during its topical, parenteral, or low-dose oral administration with that obtained during its oral administration at the standard dose. However, some studies have detected high ADR frequencies even during reduced systemic exposure, suggesting that factors affecting the risk of ADR, e.g., patients’ background data, should be carefully matched between the datasets being compared.
