Antineoplastic uptake by blast cells in acute myeloid leukemia (AML) could be influenced by influx and efflux transporters, especially solute carriers (SLCs) and ATP-binding cassette family (ABC) pumps. Genetic variability in SLC and ABC could produce interindividual differences in clinical outcomes. A systematic review was performed to evaluate the influence of SLC and ABC polymorphisms and their combinations on efficacy and safety in AML cohorts. Anthracycline intake was especially influenced by SLCO1B1 polymorphisms, associated with lower hepatic uptake, showing higher survival rates and toxicity in AML studies. The variant alleles of ABCB1 were related to anthracycline intracellular accumulation, increasing complete remission, survival and toxicity. Similar findings have been suggested with ABCC1 and ABCG2 polymorphisms. Polymorphisms of SLC29A1, responsible for cytarabine uptake, demonstrated significant associations with survival and response in Asian populations. Promising results were observed with SLC and ABC combinations regarding anthracycline toxicities. Knowledge of the role of transporter pharmacogenetics could explain the differences observed in drug disposition in the blast. Further studies including novel targeted therapies should be performed to determine the influence of genetic variability to individualize chemotherapy schemes.

Anthracycline uptake could be affected by influx and efflux transporters in acute myeloid leukemia (AML). Combinations of single-nucleotide polymorphisms (SNPs) of wild-type genotype of influx transporters (SLC22A16, SLCO1B1) and homozygous variant genotypes of ABC polymorphisms (ABCB1, ABCC1, ABCC2, ABCG2) were evaluated in 225 adult de novo AML patients. No differences in complete remission were reported, but higher induction death was observed with combinations of SLCO1B1 rs4149056 and ABCB1 (triple variant haplotype, rs1128503), previously associated with ABCB1 and SLCO1B1 SNPs. Several combinations of SLCO1B1 and SLC22A16 with ABCB1 SNPs were associated with higher toxicities, including nephrotoxicity and hepatotoxicity, neutropenia, previously related to ABCB1, and a novel correlation with mucositis. Combination of SLC22A16 rs714368 and ABCG2 rs2231142 was related to cardiac toxicity, reproducing previous correlations with ABCG2. This study shows the impact of transporter polymorphisms in AML chemotherapy safety. Further prospective studies with larger populations are needed to validate these associations.

Acute myeloid leukemia (AML) is an aggressive hematological disease that mainly affects elderly patients. Following the randomized VIALE-A trial, current standard treatment in patients who are not candidates for intensive chemotherapy consists of the combination of venetoclax (VEN), a selective inhibitor of the anti-apoptotic protein BCL-2, with azacitidine (AZA) or decitabine (DEC). We performed a systematic review to critically assess the growing existing evidence regarding the effectiveness of the VEN-based combinations in unfit adult patients with newly diagnosed AML in the real-world setting. Following PRISMA guidelines, a systematic search of published manuscripts and conference abstracts (European Hematology Association and American Society of Hematology) was conducted (updated March 2024). Primary outcomes were composite complete remission (CRc) and median overall survival (mOS). A total of 73 studies fulfilled inclusion criteria, with a median age of 73 years old. The weighted mean mOS was 10.3 months among 7 138 patients, significantly lower than expected according to the VIALE-A trial (14.7 months), while the weighted mean CRc rate was 58.2% among 5 831 patients, slightly lower to that reported in the VIALE-A (66.4%). Early death rates at 30 and 60 days were 5% and 13%, respectively. The weighted mean percentage of subsequent allogeneic transplant was 15.4%. In conclusion, breakthrough mOS reported in the VIALE-A trial using VEN-AZA was not well reproduced in real world for unfit newly diagnosed AML patients, while CRc rates were more consistent. Strategies to optimize patient selection, dosing regimens, and supportive care are crucial to improve outcomes in real-world.

Objectives This study aimed to describe the actions taken to implement a telepharmacy programme with home medication dispensing and informed delivery in an outpatient pharmaceutical care unit of a tertiary hospital, where approximately 5000 patients are treated per year. It also aimed to substantiate the applicability and benefits of the programme through analysing the findings and measuring patient satisfaction. Methods We identified the operational, logistical, technological and legal needs, as well as the need for training, information and coordination with the care team and patient associations. A standard operating procedure was developed which described the home dispensing model and the profile of patients eligible for telepharmacy. Care activity was evaluated, between the months of July 2020 and January 2021; and a survey was conducted to measure patient satisfaction based on the Enopex project, a cross-sectional observational study of patients who used telepharmacy services during the COVID-19 lockdown period in Spain. Results A total of 2536 medication deliveries were made over 144 working days, with a mean of 18 (standard deviation (SD): 6) deliveries per day, and a total of 2854 dispensings (1.1 drugs per delivery). In total, 197 different types of pharmaceutical formulations were delivered, corresponding to 123 active ingredients. The distance and time avoided during the study period totalled 1 05 624 km and 1 09 452 min (76 days), whereby the median distance and time saved per patient were 66 (interquartile range (IQR):122 km and 90 (IQR:90) minutes, which represents an approximate carbon footprint reduction of 25 kg of CO₂ per patient and 16.5 tonnes in total. The satisfaction survey conducted, completed by 134 patients, revealed high satisfaction with the pharmacy service of 9.88 points out of 10. Conclusions The SARS-CoV-2 pandemic (COVID-19) has provided the pharmacy service with an opportunity to develop and implement a telepharmacy programme that benefits patients, which has enabled better organisation of the unit and greater accessibility for patients attending in person. It is a replicable method that is applicable in other pharmacy services with similar characteristics and requirements.