Abstract
Aims
Our objectives were to assess the detection and incidence of drug-induced agranulocytosis in two university hospitals using hematology laboratory data.
Methods
A prospective study was undertaken at Toulouse University Hospital (France) and Navarra University Hospital (Spain) for 1 year (from 1 May 2004 to 30 April 2005). Using a computerized process and hematology laboratory data, all neutrophil counts with a value less than 500/mm3 were registered, allowing identification of inpatients suffering from agranulocytosis during the period of the study. Medical records of all selected patients were then consulted. Cytostatic drugs were excluded from this study.
Results
During the period of the study, 225,659 neutrophil counts were performed in both hospitals, of which 2,835 (1.26%) had a neutrophil count less than 500/mm3, corresponding to 739 patients. Seventeen patients were excluded because of lack of data, and 20 cases of infants younger than 3 months were excluded. Among the remaining patients (n = 702), 23 cases of drug-induced agranulocytosis (excluding cytostatic drugs) were suspected. All cases were classified as “serious” since they led to death in 2 cases, hospitalization or prolongation of hospitalization in 19 cases and threatening of vital prognosis in 2 cases. Withdrawal of suspected drugs was done in all cases with regression of neutropenia in 21 cases. According to hospitalization data, the annual incidence of drug-induced agranulocytosis was 1.62 (1.0–2.6) per 10,000 inpatients in Toulouse University hospital (based on 534 cases) and 3.24 (0.9–8.3) per 10,000 inpatients in Navarra University Hospital (based on 168 cases). The involved drugs were mainly antibacterial (30.4%), immunosuppressive (17.4%), antithyroid (13.0%), antiplatelet (8.7%) and nonsteroidal anti-inflammatory (8.7%) ones. Only seven cases from Toulouse University Hospital were spontaneously reported by physicians during the same period. Thus, the underreporting coefficient (U) was 2.71 (63.2%) in France.
Conclusion
Our survey allowed us to identify the suspected drug-induced agranulocytosis through a prospective study in a large sample of inpatients using only laboratory data analysis. We also note an important underreporting rate of this serious adverse drug reaction (ADR) to the official French pharmacovigilance system. Laboratory data analysis could be used for identifying serious ADRs.
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References
Medina PJ, George JN (2001) Drug-associated blood dyscrasias. Adv Drug React Bull 210:803–806
Kaufman DW, Kelly JP, Levy M, Shapiro S (1991) The drug etiology of agranulocytosis and aplastic anemia. Oxford University Press, New York
Theophile H, Begaud B, Martin K, Laporte JR, Capella D (2004) Incidence of agranulocytosis in southwest France. Eur J Epidemiol 19:563–565
Andrès E, Maloisel F (2006) Idiosyncratic drug-induced agranulocytosis. Rev Med Int 27:209–214
Strom BL, Carson JL, Schinnar R, Snyder ES, Shaw M (1992) Descriptive epidemiology of agranulocytosis. Arch Intern Med 152:1475–1480
Young NS (1994) Agranulocytosis. JAMA 271:935–938
Kaufman DW, Kelly JP, Jurgelon JM et al (1996) Drugs in the aetiology of agranulocytosis and aplastic anaemia. Eur J Haematol Suppl 60:23–30
Julia A, Olona M, Bueno J et al (1991) Drug induced agranulocytosis: pronostic factors in a series of 168 episodes. Br J Haematol 79:366–371
Ibanez L, Juan J, Perez E, Carne X, Laporte J-R (1991) Agranulocytosis associated with aprindine and other antiarrhythmic drugs: an epidemiological approach. Eur Heart J 12:639–641
Strom BL, Carson JL, Schinnar R, Snyder ES, Shaw M, Lundin FE (1993) Nonsteroidal anti-inflammatory drugs and neutropenia. Arch Intern Med 153:2119–2124
Rawson NSB, Harding SR, Malcolm E, Lueck L (1998) Hospitalizations for aplastic anemia and agranulocytosis in Saskatchewan: incidence and associations with antecedent prescription drug use. J Clin Epidemiol 51:1343–1355
Van der Klauw MM, Goudsmit R, Halie MR et al (1999) A population-based case-cohort study of drug-associated agranulocytosis. Arch Intern Med 159:369–374
Laporte JR, Capella D, Juan J (1990) Agranulocytosis induced by cinepazide. Eur J Clin Pharmacol 38:387–388
Ibanez L, Ballarin E, Perez E, Vidal X, Capella D, Laporte JR (2000) Agranulocytosis induced by pyrithyldione, a sedative hypnotic drug. Eur J Clin Pharmacol 55:761–764
Ibanez L, Ballarin E, Vidal X, Laporte JR (2000) Agranulocytosis associated with calcium dobesilate: clinical course and risk estimation with the case-control and the case-population approaches. Eur J Clin Pharmacol 56:763–767
Ibanez L, Vidal X, Ballarin E, Laporte JR (2005) Population-based drug-induced agranulocytosis. Arch Intern Med 165:869–874
Benichou Ch (1994) Adverse drug reactions: a practical guide to diagnosis and management. Wiley, Chichester
No authors listed (1991) Standardization of definitions and criteria of causality assessment of adverse drug reactions. Drug-induced cytopenia. Int J Clin Pharmacol Ther Toxicol 29:75–81
Cancer Therapy Evaluation Program (2003) Common Terminology Criteria for Adverse Events (CTCAE), version 3.0. http://www.ctep.cancer.gov/forms/CTCAEv3.pdf
Uppsala Monitoring Centre (2006) The use of the World Health Organization-Uppsala Monitoring Centre (WHO-UMC) system for standardised case causality assessment. http://www.who-umc.org/graphics/4409.pdf
Edwards IR, Aronson JK (2000) Adverse drug reactions: definitions, diagnosis, and management. Lancet 356:1255–59
Anonymous (2006) Dictionnaire VIDAL, 82th edn. OVP, Paris
No authors listed (2005) Catálogo de especialidades farmacéuticas. Consejo General de Colegios de Farmacéuticos, Madrid
Tubert P, Bégaud B, Péré JC, Haramburu F, Lellouch J (1992) Power and weakness of spontaneous reporting: a probabilistic approach. J Clin Epidemiol 45:283–286
Haramburu F (1993) Estimation of under-reporting. Methodological approaches in pharmacoepidemiology: application to spontaneous reporting ARME-P. Elsever, Amsterdam
Thürmann P (2001) Methods and systems to detect adverse drug reactions in hospitals. Drug Saf 24:961–968
Azaz-Livshits T, Levy M (1998) Computerized surveillance of adverse drug reactions in hospital: a pilot study. Br J Clin Pharmacol 45:309–314
Tegeder I, Levy M, Muth-Selbach U (1999) Retrospective analysis of the frequency and recognition of adverse reactions by means of automatically recorded laboratory signals. Br J Clin Pharmacol 47:557–564
Bagheri H, Michel F, Lapeyre-Mestre M et al (2000) Detection and incidence of drug-induced liver injuries in hospital: a prospective analysis from laboratory signals. Br J Clin Pharmacol 50:479–484
Levy M, Azaz-Livshits T, Sadan B et al (1999) Computerized surveillance of adverse reactions in hospital: implementation. Eur J Clin Pharmacol 54:887–892
Salame G, Péré JC, Chaslerie A et al (1990) Liver injuries: a prospective study (abstract). J Clin Res Pharmacoepidemiol 4:133
Dugué A, Bagheri H, Lapeyre-Mestre M, Tournamille JF et al (2004) Detection and incidence of muscular adverse drug reactions: a prospective analysis from laboratory signals. Eur J Clin Pharmacol 60:285–292
Andersohn F, Bronder E, Klimpel A, Garbe E (2004) Proportion of drug-related serious rare blood dyscrasias: estimates from the Berlin Case-Control Surveillance Study. Am J Hematol 77 :316–318
Assurance Maladie en ligne (2006) Les médicaments remboursés en 2003 et 2004 par le régime général d’Assurance maladie. http://www.ameli.fr/244/DOC/2333/article.html
IMS (2006) Pharmaceutical market intelligence. http://www.imshealth.com
The International Agranulocytosis and Aplastic Anemia Study (1986) Risk of agranulocytosis and aplastic anemia. A first report of their relation to drug use with special reference to analgesics. JAMA 256:1749–1757
Classen DC, Pestotnik SL, Evans RS, Bruke JP (1991) Computerized surveillance of adverse drug events in hospital patients. JAMA 266:2847–2851
Bates DW, O’Neil AC, Boyle D, Teich J, Chertow GM, Komaroff AL, Brennan TA (1994) Potential identifiability and preventability of adverse events using information systems. J Am Med Inform Assoc 1:404–411
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Tavassoli, N., Duchayne, E., Sadaba, B. et al. Detection and incidence of drug-induced agranulocytosis in hospital: a prospective analysis from laboratory signals. Eur J Clin Pharmacol 63, 221–228 (2007). https://doi.org/10.1007/s00228-006-0242-8
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DOI: https://doi.org/10.1007/s00228-006-0242-8