A SIMPLE TOOL FOR RISK STRATIFICATION OF DRUG PROVOCATION TEST WITH NON-STEROIDAL ANTI-INFLAMMATORY DRUG

Background: After antibiotics, nonsteroidal anti-inflammatory drugs (NSAID) are one of the leading drug classes responsible for hypersensitivity reactions in children. The drug provocation test (DPT) is the criterion standard for diagnosis. Objective: The aim of the present study was to determine the negative predictive values (NPV) of DPTs with NSAIDs in pediatric patients and to evaluate their attitudes toward NSAID use after a negative DPT result. Methods: The study included all patients who had undergone DPTs between January 1, 2014, and December 31, 2018, in our pediatric allergy clinic for suspected NSAID hypersensitivity reaction and who had a negative result for the suspected agent. Those patients who could be contacted were asked whether the patient had used the same drug again since the DPT and, if so, whether he or she had a reaction. Patients who were reported to have had a reaction were invited to the clinic for reevaluation. Based on the findings from this retesting, the NPVs of the DPTs with NSAIDs were calculated. Results: During the 5-year study period, DPT results were negative for 230 suspected agents in 215 patients. Of these, 143 patients (66.5%) were able to be contacted. A total of 108 patients (75.5%) had used the tested NSAIDs at least once after the provocation test, and five patients (4.6%) reported a reaction on reexposure. Four of these patients declined reevaluation, one patient exhibited no reaction in a second DPT. Therefore, the NPV was calculated as 96.3% (94.3% for ibuprofen, and 100% for paracetamol). Conclusion: The NPVs of DPTs with NSAIDs, especially of paracetamol DPT, is high in children. This finding should reassure the parents of patients who may require NSAID therapy again.

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Meloxicam and/or Etoricoxib Could Be Administered Safely in Two Equal Doses during an Open Oral Challenge in Patients with Nonsteroidal Anti-Inflammatory Drug Hypersensitivity

International Archives of Allergy and Immunology ◽

10.1159/000512072 ◽

2021 ◽

pp. 1-7

Author(s):

Dolly Vanessa Rojas-Mejía ◽

Diana Lucía Silva Espinosa ◽

Diana Marcela Martínez ◽

Luis Fernando Ramírez Zuluaga ◽

Carlos Daniel Serrano Reyes

Keyword(s):

Drug Hypersensitivity ◽

Provocation Test ◽

Descriptive Study ◽

Oral Challenge ◽

Oral Drug ◽

Hypersensitivity Reactions ◽

Cross Sectional ◽

Drug Provocation Test ◽

Inflammatory Drugs ◽

Anti Inflammatory

Background: Hypersensitivity reactions to nonsteroidal anti-inflammatory drugs (NSAIDs) are common. These patients require an effective and safe analgesic alternative. Objective: The aim of the study was to demonstrate the safety of meloxicam and etoricoxib administered by open oral challenge in 2 equal steps in patients with NSAID hypersensitivity. Methods: A cross-sectional, descriptive study of patients with a diagnosis of NSAID hypersensitivity who underwent an oral drug provocation test (DPT) with meloxicam or etoricoxib between January 2011 and August 2017 was conducted. The analysis was performed from a database in BD Clinic. Results: Two hundred and twenty-eight oral provocations were performed with an alternative NSAID (203 with meloxicam and 25 with etoricoxib) in 217 patients with hypersensitivity to NSAIDs. The median age was 38 years. Ninety-eight percent of meloxicam and 100% of etoricoxib DPTs were performed in 2 steps (without previous placebo), and 52% and 64% of meloxicam and etoricoxib DPTs, respectively, were performed with 50% of the therapeutic dose in each step. Tolerance to meloxicam was demonstrated in 192 patients (94.5%) and in 100% of patients receiving etoricoxib. Conclusions: Open oral provocation with meloxicam and etoricoxib carried out in 2 steps without placebo seems to be safe and implies less costs and less time expenditure. Also, it could be performed with 2 equal doses.

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