Outcomes for newly diagnosed patients with acute myeloid leukemia dosed on actual or adjusted body weight.

PURPOSE: Data from solid tumor malignancies suggest that actual body weight (ABW) dosing improves overall outcomes. There is the potential to compromise efficacy when chemotherapy dosages are reduced, but the impact of dose adjustment on clinical response and toxicity in hematologic malignancies is unknown. The purpose of this study was to evaluate the outcomes of utilizing a percent of ABW for acute myeloid leukemia (AML) induction chemotherapy dosing. METHODS: This retrospective, single-center study included 146 patients who received 7 + 3 induction (cytarabine and anthracycline) for treatment of AML. Study design evaluated the relationship between percentage of ABW dosing and complete response (CR) rates in patients newly diagnosed with AML. RESULTS: Percentage of ABW dosing did not influence CR rates in patients undergoing induction chemotherapy for AML (p = 0.83); nor did it influence rate of death at 30 days or relapse at 6 months (p = 0.94). When comparing patients dosed at 90-100 % of ABW compared to <90 % ABW, CR rates were not significantly different in patients classified as poor risk (p = 0.907). All favorable risk category patients obtained CR. CONCLUSIONS: Preemptive dose reductions for obesity did not influence CR rates for patients with AML undergoing induction chemotherapy and did not influence the composite endpoint of death at 30 days or disease relapse at 6 months.

Frequency of prescribing errors by medical residents in various training programs.

OBJECTIVES: Medication errors are hazardous and costly. Children are at increased risk for medication errors because of weight-based dosing, limited FDA indications, and human calculation errors. The aim of this study is to determine the frequency and type of resident prescribing errors in a pediatric clinic and further compare error rates of residents in different training programs. METHODS: Resident prescription error data from a pediatric clinic was collected for 5 months. Upon detection of an error, residents were notified/given feedback regarding the type of error, ways to remedy errors, and future prevention methods. Data were categorized based on medication involved, error type, and resident training program. RESULTS: The review included 2941 prescriptions, with the overall resident prescribing error rate being 5.88%. The pediatric resident error rate was 4%. Family medicine, internal medicine, and medicine/pediatrics had error rates of 11%, 8%, and 7%, respectively. The prescribing error rate showed a statistically significant difference with pediatrics compared with family medicine, internal medicine, and medicine/pediatrics (P < 0.0005, P = 0.013, and P = 0.03, respectively). The most common medication error type was overdose, followed by unclear quantity. Among the medication classes, topical agents and antimicrobials were among the top prescribed. CONCLUSIONS: Numerous types of medication errors occur in a pediatric clinic. Prescribing errors take place among all medical trainees; however, medication error rates in the pediatric population may vary among resident specialty. Identifying the cause of prescribing errors will allow institutions to create educational programs tailored for safe medication use in children as well as systemwide changes for error reduction.