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1.
Explor Res Clin Soc Pharm ; 13: 100398, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38204887

RESUMEN

Background: Although electronic prescription cancellation such as via CancelRx can facilitate critical communication between prescribers and pharmacy staff about discontinued medications, there is little work that explores whether CancelRx meets the needs of pharmacy staff users. Objective: This study leverages qualitative interviews with pharmacy staff to address the following question: When medication changes are made by a prescriber using CancelRx, what information is needed by pharmacy staff to make correct and effective decisions in their roles in medication management? Methods: We conducted an inductive thematic analysis of interviews with 11 pharmacy staff members (pharmacists and pharmacy technicians) across three outpatient community pharmacy sites within an academic health care system. Results: Three information needs themes were consistently identified by both pharmacists and pharmacy technicians: prescriber intent when initiating the CancelRx, clinical rationale for the medication change, and intended medication regimen. Notably, both pharmacists and pharmacy technicians often reported seeking multiple information needs not fully addressed by CancelRx in the electronic health record (EHR) to achieve the shared goals of correct dispensing of medications and supporting patient self-management. Conclusions: Our qualitative analysis reveals that outpatient community pharmacy staff in an academic health care system often seek additional information from the (EHR) following medication changes communicated by CancelRx to meet their information needs. Ideally, the prescriber would provide sufficient information through CancelRx to automatically identify all discontinued prescriptions. These limitations highlight the need for design features that support routine communication of needed information at the time of a medication change, such as structured data elements.

2.
JAMA Intern Med ; 183(10): 1120-1126, 2023 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-37669071

RESUMEN

Importance: An estimated 1.5% to nearly 5% of medications are dispensed after discontinuation in the electronic health record (EHR), with 34% meeting criteria for high risk of potential harm. Objective: To evaluate the association of the implementation of e-prescription cancellation messaging (CancelRx) with medication dispensing after discontinuation of e-prescriptions in the EHR. Design, Setting, and Participants: This case series with interrupted time series analysis included patients who had at least 1 medication e-prescribed in ambulatory care to a health system pharmacy and discontinued in the 2-year study period from 1 year prior to approximately 1 year after CancelRx implementation (January 15, 2018, to December 7, 2019). Prior to CancelRx implementation, changes to e-prescribed medications within the EHR were not electronically communicated to health system pharmacies, which used separate pharmacy management software. Statistical analysis was performed from November 2020 to June 2023 (primary analysis from March 2021 to May 2022). Exposure: Implementation of CancelRx. Main Outcomes and Measures: The primary outcome was the proportion of e-prescribed medications dispensed and sold to patients by pharmacies within 6 months after discontinuation in the EHR. A medication was defined as dispensed after discontinuation if the timestamp of dispensing was at least 1 minute and less than 6 months after the timestamp of discontinuation in the EHR. A secondary outcome was the proportion of discontinued medications that was reordered within 120 days. Results: A total of 53 298 qualifying e-prescriptions that were discontinued were identified for 17 451 unique patients (mean [SD] age, 50.6 [18.2] years; 9332 women [53.5%]). After CancelRx implementation, 22 443 (85.9%) of the 26 127 discontinued e-prescriptions resulted in a CancelRx transaction. In interrupted time series analysis, the proportion of prescriptions dispensed after discontinuation decreased from a baseline of 8.0% (2162 of 27 171) to 1.4% (369 of 26 127; P < .001), without a significant week-to-week trend (ß = 0.000158; P = .37). Conclusions and Relevance: In this case series with interrupted time series analysis, findings suggest that CancelRx implementation was associated with an immediate and persistent reduction in the proportion of e-prescriptions sold after discontinuation in the EHR. Widespread implementation of CancelRx may significantly improve medication safety through the reduction of medication dispensing after discontinuation by prescribers.


Asunto(s)
Prescripción Electrónica , Servicios Farmacéuticos , Farmacias , Farmacia , Humanos , Femenino , Persona de Mediana Edad , Registros Electrónicos de Salud
3.
Cancer Rep (Hoboken) ; 6(2): e1753, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36346013

RESUMEN

BACKGROUND: Oncofertility is a developing field of increasing importance, particularly in pediatric oncology, where most patients are likely to survive long-term and have not yet had the opportunity to have children. AIMS: We performed a quality improvement initiative to increase our rates of fertility preservation counseling and referral through the implementation of a pediatric oncofertility team, and we report outcomes 7 years following implementation of our initiative. METHODS AND RESULTS: We compare our baseline oncofertility survey to 44 post-intervention survey respondents and electronic medical record documentation for 149 patients treated in 2019. Ninety-five percent of post-intervention survey respondents recalled fertility counseling (baseline 70%, p = .004) and 89.3% were appropriately referred for fertility preservation (baseline 50%, p = .017). Counseling was documented in 60.4% of charts; 81% of patients analyzed by chart review were appropriately referred for fertility preservation. Fertility preservation outcomes differed by sex assigned at birth. CONCLUSION: Creation of an oncofertility team produced improvements in fertility counseling and fertility preservation referral across an extended period of time.


Asunto(s)
Preservación de la Fertilidad , Neoplasias , Recién Nacido , Humanos , Niño , Preservación de la Fertilidad/métodos , Neoplasias/terapia , Consejo/métodos , Oncología Médica , Derivación y Consulta
4.
J Am Med Inform Assoc ; 29(12): 2101-2104, 2022 11 14.
Artículo en Inglés | MEDLINE | ID: mdl-36240449

RESUMEN

Electronic communication of prescription discontinuation, or CancelRx, has the potential to improve medication safety. We aimed to describe the proportion of discontinued outpatient medications that would result in a CancelRx message to understand its impact on medication safety. We used a data report to identify all outpatient medications discontinued in the electronic health record (EHR) of an academic health system in 1 month (October 2018). Among all 63 485 medications discontinued, 23 118 (36.4%) were e-prescribed, 25 982 (40.9%) were patient-reported or reconciled, and the remainder prescribed nonelectronically. Discontinued high-risk medications were more likely to be e-prescribed (2768 of 5896, 47.0%). A discontinuation reason was specified in 37 353 (58.9%) of all discontinued medications. Approximately one-third to one-half of discontinued medications were e-prescribed within the same EHR and would result in a CancelRx message to the pharmacy. Extension of this functionality to medications reconciled in the EHR could significantly expand the impact of CancelRx on medication safety. In addition, complete and accurate discontinuation reasons are needed to optimize CancelRx implementation.


Asunto(s)
Prescripción Electrónica , Farmacias , Humanos , Pacientes Ambulatorios , Prescripciones de Medicamentos , Electrónica
5.
J Patient Saf ; 18(5): 377-381, 2022 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-35948287

RESUMEN

OBJECTIVES: Wrong-patient errors are common and have the potential to cause serious harm. The Office of the National Coordinator for Health Information Technology Patient Identification SAFER Guide recommends displaying patient photographs in electronic health record (EHR) systems to facilitate patient identification and reduce wrong-patient errors. A potential barrier to implementation is patient refusal; however, patients' perceptions about having their photograph captured during registration and integrated into the EHR are unknown. METHODS: The study was conducted in an emergency department (ED) and primary care outpatient clinic within a large integrated health system in New York City. The study consisted of 2 components: (1) direct observation of the registration process to quantify the frequency of patient refusals and (2) semistructured interviews to elicit patients' feedback on perceived benefits and barriers to integrating their photograph into the EHR. RESULTS: Of 172 registrations where patients were asked to take a photograph for patient identification, 0 refusals were observed (ED, 0 of 87; primary care outpatient clinic, 0 of 85). A convenience sample of 30 patients were interviewed (female, 70%; age ≥55 years, 43%; Hispanic/Latino, 67%; Black, 23%). Perceived benefits of integrating patient photographs into the EHR included improved security (40%), improved patient identification (23%), and ease of registration (17%). A small proportion of patients raised privacy concerns. CONCLUSIONS: Patient refusal was not found to be a barrier to implementation of patient photographs in the EHR. Efforts to identify and address other potential barriers would help ensure that the highest proportion of patients has photographs in their medical record.


Asunto(s)
Registros Electrónicos de Salud , Informática Médica , Servicio de Urgencia en Hospital , Femenino , Humanos , Persona de Mediana Edad , Ciudad de Nueva York , Pacientes Ambulatorios
6.
J Patient Saf ; 18(6): e934-e937, 2022 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-35985045

RESUMEN

OBJECTIVES: This study aimed to evaluate the impact of electronic communication of medication discontinuation from prescribers to pharmacies (CancelRx) on medication safety. METHODS: We used electronic health record (EHR) data to identify medications that were e-prescribed from a pilot practice to a health system pharmacy and subsequently discontinued before or after CancelRx implementation (January 16-April 15, 2018 versus 2019). We matched these EHR data to pharmacy management software data to identify medications that were sold to patients in the 6 months after discontinuation. As a surrogate for unintended cancellation, we also identified medications refilled within 120 days of discontinuation. We conducted a medical record review to identify documentation of prescriber intent to discontinue these medications. RESULTS: CancelRx implementation prevented prescriptions from being sold after discontinuation in the EHR (42 of 392 [10.7%] versus 0 of 387 [0.0%], P < 0.0001), but only 15 of 42 (35.7%) had documented intent to discontinue the medication (15 of 392, or 3.8% overall). There was a nonsignificant increase in the proportion of discontinued medications reordered within 120 days (10.0% versus 12.7%, P = 0.23). Medical record review of reordered prescriptions after CancelRx implementation found that 10 of 49 (10 of 387, or 2.6% overall) might have been unintentionally canceled. CONCLUSIONS: Implementation of CancelRx eliminated the sale of e-prescribed medications after discontinuation in the EHR but might result in the unintentional cancellation of some prescriptions. Strategies to increase situational awareness of providers and pharmacy staff, including increased visibility of CancelRx, clear distinctions between active and expired prescriptions, and transmission of the reason for discontinuation, might reduce the risk of unintentional cancellations.


Asunto(s)
Prescripciones de Medicamentos , Farmacias , Comunicación , Electrónica , Humanos , Proyectos Piloto
7.
Pediatr Qual Saf ; 7(2): e545, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35369412

RESUMEN

Meaningful engagement in quality improvement (QI) projects by trainees is often challenging. A fellow-led QI project aimed to improve adherence to a blood culture clinical decision algorithm and reduce unnecessary cultures in pediatric oncology inpatients. Methods: We visualized preintervention rates of blood cultures drawn on pediatric oncology inpatients using a control chart. Following the introduction of the algorithm to our division, an Ishikawa fishbone diagram of cause-and-effect identified two areas for improvement: prescriber education on the algorithm and targeted feedback on its use. We developed two interventions to support algorithm awareness and use: (1) bundled educational interventions and (2) targeted chart review and feedback. Fellows reviewed >750 blood culture episodes and adjudicated each as "adherent" or "nonadherent" to the algorithm. In addition, fellows provided direct feedback to prescribers regarding nonadherent episodes and discussed strategies for algorithm adherence. Results: Blood culture rates in preintervention, intervention, and follow-up periods were 33.35, 25.24, and 22.67 cultures/100 patient-days, respectively. The proportion of nonadherent culture episodes decreased from 47.14% to 11.11%. The use of the algorithm did not prolong the time to cultures drawn on patients with new fever. Seventy-five percent of fellows provided feedback to inpatient teams on algorithm use. Following this project, trainees reported feeling more qualified to apply QI principles to patient care. Conclusions: Implementation of a clinical decision algorithm reduced the rate of cultures drawn on pediatric oncology inpatients. Fellow-led education of the care team decreased the proportion of nonadherent culture episodes and provided active engagement in QI.

8.
JCO Oncol Pract ; 18(3): e403-e411, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-34565170

RESUMEN

PURPOSE: Oncofertility counseling regarding the reproductive risks associated with cancer therapy is essential for quality cancer care. We aimed to increase the rate of oncofertility counseling for patients of reproductive age (18-40 years) with cancer who were initiating systemic therapy at the Johns Hopkins Cancer Center from a baseline rate of 37% (25 of 68, June 2019-January 2020) to 70% by February 2021. METHODS: We formed an interprofessional, multidisciplinary team as part of the ASCO Quality Training Program. We obtained data from the electronic medical record and verified data with patients by phone. We surveyed patients, oncologists, and fertility specialists to identify barriers. After considering a prioritization matrix, we implemented Plan-Do-Study-Act (PDSA) cycles. RESULTS: We identified the following improvement opportunities: (1) oncologist self-reported lack of knowledge about counseling and local fertility preservation options and (2) lack of a standardized referral mechanism to fertility services. During the first PDSA cycle (February 2020-August 2020, disrupted by COVID-19), we introduced the initiative to increase oncofertility counseling at faculty meetings. From September 2020 to November 2020, we implemented a second PDSA cycle: (1) educating and presenting the initiative at Oncology Grand Rounds, (2) distributing informative pamphlets to oncologists and patients, and (3) implementing an electronic medical record order set. In the third PDSA cycle (December 2020-February 2021), we redesigned the order set to add information (eg, contact information for fertility coordinator) to the patient after-visit summary. Postimplementation (September 2020-February 2021), counseling rates increased from 37% to 81% (38 of 47). CONCLUSION: We demonstrate how a trainee-led, patient-centered initiative improved oncofertility care. Ongoing work focuses on ensuring sustainability and assessing the quality of counseling.


Asunto(s)
COVID-19 , Preservación de la Fertilidad , Neoplasias , Adolescente , Adulto , Consejo , Humanos , Neoplasias/complicaciones , Neoplasias/terapia , Mejoramiento de la Calidad , SARS-CoV-2 , Adulto Joven
9.
Artículo en Inglés | MEDLINE | ID: mdl-34210658

RESUMEN

Treatment of high-risk neuroblastoma typically incorporates multiagent chemotherapy, surgery, radiation therapy, autologous stem cell transplantation, immunotherapy, and differentiation therapy. The discovery of activating mutations in ALK receptor tyrosine kinase (ALK) in ∼8% of neuroblastomas opens the possibility of further improving outcomes for this subset of patients with the addition of ALK inhibitors. ALK inhibitors have shown efficacy in tumors such as non-small-cell lung cancer and anaplastic large cell lymphoma in which wild-type ALK overexpression is driven by translocation events. In contrast, ALK mutations driving neuroblastomas are missense mutations in the tyrosine kinase domain yielding constitutive activation and differing sensitivity to available ALK inhibitors. We describe a case of a patient with relapsed, refractory, metastatic ALK F1174L-mutated neuroblastoma who showed no response to the first-generation ALK inhibitor crizotinib but had a subsequent complete response to the ALK/ROS1 inhibitor lorlatinib. The patient's disease relapsed after 13 mo of treatment. Sequencing of cell-free DNA at the time of relapse pointed toward a potential mechanism of acquired lorlatinib resistance: amplification of CDK4 and FGFR1 and a NRAS Q61K mutation. We review the literature regarding differing sensitivity of ALK mutations found in neuroblastoma to current FDA-approved ALK inhibitors and known pathways of acquired resistance. Our report adds to the literature of important correlations between neuroblastoma ALK mutation status and clinical responsiveness to ALK inhibitors. It also highlights the importance of understanding acquired mechanisms of resistance.


Asunto(s)
Aminopiridinas/uso terapéutico , Quinasa de Linfoma Anaplásico/antagonistas & inhibidores , Antineoplásicos/uso terapéutico , Resistencia a Antineoplásicos/genética , Lactamas/uso terapéutico , Neuroblastoma/tratamiento farmacológico , Neuroblastoma/genética , Proteínas Tirosina Quinasas/antagonistas & inhibidores , Proteínas Proto-Oncogénicas/antagonistas & inhibidores , Pirazoles/uso terapéutico , Preescolar , Análisis Mutacional de ADN , Femenino , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Inhibidores de Proteínas Quinasas/uso terapéutico , Recurrencia
10.
Microorganisms ; 9(5)2021 May 13.
Artículo en Inglés | MEDLINE | ID: mdl-34068292

RESUMEN

Microbial sharing between humans and animals has been demonstrated in a variety of settings. However, the extent of microbial sharing that occurs within the healthcare setting during animal-assisted intervention programs is unknown. Understanding microbial transmission between patients and therapy dogs can provide important insights into potential health benefits for patients, in addition to addressing concerns regarding potential pathogen transmission that limits program utilization. This study evaluated for potential microbial sharing between pediatric patients and therapy dogs and tested whether patient-dog contact level and a dog decolonization protocol modified this sharing. Patients, therapy dogs, and the hospital environment were sampled before and after every group therapy session and samples underwent 16S rRNA sequencing to characterize microbial communities. Both patients and dogs experienced changes in the relative abundance and overall diversity of their nasal microbiome, suggesting that the exchange of microorganisms had occurred. Increased contact was associated with greater sharing between patients and therapy dogs, as well as between patients. A topical chlorhexidine-based dog decolonization was associated with decreased microbial sharing between therapy dogs and patients but did not significantly affect sharing between patients. These data suggest that the therapy dog is both a potential source of and a vehicle for the transfer of microorganisms to patients but not necessarily the only source. The relative contribution of other potential sources (e.g., other patients, the hospital environment) should be further explored to determine their relative importance.

11.
Blood Adv ; 3(21): 3393-3405, 2019 11 12.
Artículo en Inglés | MEDLINE | ID: mdl-31714961

RESUMEN

Detection of minimal residual disease (MRD) pre- and post-hematopoietic cell transplantation (HCT) for pediatric acute lymphoblastic leukemia (ALL) has been associated with relapse and poor survival. Published studies have had insufficient numbers to: (1) compare the prognostic value of pre-HCT and post-HCT MRD; (2) determine clinical factors post-HCT associated with better outcomes in MRD+ patients; and (3) use MRD and other clinical factors to develop and validate a prognostic model for relapse in pediatric patients with ALL who undergo allogeneic HCT. To address these issues, we assembled an international database including sibling (n = 191), unrelated (n = 259), mismatched (n = 56), and cord blood (n = 110) grafts given after myeloablative conditioning. Although high and very high MRD pre-HCT were significant predictors in univariate analysis, with bivariate analysis using MRD pre-HCT and post-HCT, MRD pre-HCT at any level was less predictive than even low-level MRD post-HCT. Patients with MRD pre-HCT must become MRD low/negative at 1 to 2 months and negative within 3 to 6 months after HCT for successful therapy. Factors associated with improved outcome of patients with detectable MRD post-HCT included acute graft-versus-host disease. We derived a risk score with an MRD cohort from Europe, North America, and Australia using negative predictive characteristics (late disease status, non-total body irradiation regimen, and MRD [high, very high]) defining good, intermediate, and poor risk groups with 2-year cumulative incidences of relapse of 21%, 38%, and 47%, respectively. We validated the score in a second, more contemporaneous cohort and noted 2-year cumulative incidences of relapse of 13%, 26%, and 47% (P < .001) for the defined risk groups.


Asunto(s)
Neoplasia Residual/diagnóstico , Leucemia-Linfoma Linfoblástico de Células Precursoras/diagnóstico , Adolescente , Niño , Preescolar , Femenino , Estudios de Seguimiento , Trasplante de Células Madre Hematopoyéticas/métodos , Humanos , Lactante , Masculino , Periodo Perioperatorio , Leucemia-Linfoma Linfoblástico de Células Precursoras/etiología , Leucemia-Linfoma Linfoblástico de Células Precursoras/mortalidad , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Pronóstico , Medición de Riesgo , Factores de Riesgo , Trasplante Homólogo , Resultado del Tratamiento
12.
Appl Clin Inform ; 10(2): 336-347, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-31117135

RESUMEN

BACKGROUND: CancelRx allows prescribers to send electronic cancellation messages to pharmacies when medications are discontinued. Little is known about its functionality and impact on clinical workflows. OBJECTIVES: To understand CancelRx functionality, its potential impact on workflows and medication safety risks, and to develop mitigating strategies for risks introduced by implementation. METHODS: We conducted direct observations and semi-structured interviews to develop CancelRx use cases and assessed CancelRx in an end-to-end test environment, proactive risk assessment, and pilot implementation from April 16 to July 15, 2018. RESULTS: E-cancellations were sent upon discontinuation of e-prescriptions written within the electronic health record (EHR), but not other medications (e.g., printed prescriptions) and could be initiated by nonprescribers. In our proactive risk assessment, CancelRx implementation eliminated five of seven failure modes in outpatient prescribing to Johns Hopkins pharmacies, but introduced new risks, including (1) failure to act if an e-cancellation was not sent or was unsuccessful; (2) failure to cancel all prescriptions for a medication; (3) errors in manual matching; and (4) erroneous medication cancellations. We identified potential mitigation strategies for these risks. During pilot implementation, 92.4% (428/463) of e-cancellations had confirmed approval by the receiving pharmacy, while 4.5% (21/463) were denied, and 3.0% (14/463) had no e-cancellation response. Among e-cancellations received by the pilot pharmacy, 1.7% (7/408) required manual matching by pharmacy staff. Based on performance in testing, 73.4% (340/463) of completed e-cancellations would be expected to generate an in-basket message, including 21 (6.2%) denials and 319/340 (93.8%) approvals with a note from the pharmacy. CONCLUSION: CancelRx is an important functionality with the potential to decrease adverse events due to medication errors. However, changes in implementation in our EHR and pharmacy software and enhancements in the CancelRx standard are needed to maximize safety and usability. Further studies are needed to evaluate the impact of e-cancellation on medication safety.


Asunto(s)
Prescripción Electrónica , Medición de Riesgo , Comunicación , Registros Electrónicos de Salud , Humanos , Farmacia , Proyectos Piloto
13.
Pediatr Qual Saf ; 3(5): e109, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30584636

RESUMEN

INTRODUCTION: Medication reconciliation can reduce medication discrepancies, errors, and patient harm. After a large academic hospital introduced a medication reconciliation software program, there was low compliance with electronic health record documentation of home medication reconciliation. This quality improvement project aimed to improve medication reconciliation on admission in 4 pediatric inpatient units by 50% over 3 months. METHODS: We used Lean Sigma methodology to observe medication reconciliation processes; interview residents, nurses, pharmacists, and families; and perform swim lane process mapping and Ishikawa Cause and Effect analysis. The improvement plan included education and automated e-mails sent to admitting residents who had not completed medication reconciliation within 24 hours of admission. The daily percentage of patients without medication reconciliation within 24 hours of admission, indicated by the presence of old prescriptions in Sunrise Prescription Writer (RxWriter) (Allscripts Healthcare Solutions, Chicago, Ill.) from prior admissions, was assessed from March 2015-June 2016. We constructed statistical process control charts and identified special causes. RESULTS: Key barriers included lack of knowledge about RxWriter and lack of accountability for completing medication reconciliation. The percentage of patients without medication reconciliation decreased from 32% at baseline to 22% with education (P < 0.001), to 15% with the use of automated e-mail reminders (P < 0.001). We sustained improvement over the following year. Statistical process control testing indicated shifts aligning with each stage of the study. CONCLUSION: Provider-tailored, automated e-mail reminders linked to electronic health record with educational training significantly improved resident compliance with use of an electronic tool for documentation of home medication reconciliation on hospital admission.

14.
Clin Sarcoma Res ; 8: 21, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30410720

RESUMEN

BACKGROUND: Relapsed and refractory sarcomas continue to have poor survival rates. The cancer stem cell (CSC) theory provides a tractable explanation for the observation that recurrences occur despite dramatic responses to upfront chemotherapy. Preclinical studies demonstrated that inhibition of the mechanistic target of rapamycin (mTOR) sensitizes the CSC population to chemotherapy. METHODS: Here we present the results of the Phase II portion of a Phase I/II clinical trial that aimed to overcome the chemoresistance of sarcoma CSC by combining the mTOR inhibitor temsirolimus (20 mg/m2 weekly) with the chemotherapeutic agent liposomal doxorubicin (30 mg/m2 monthly). RESULTS: Fifteen patients with relapsed/refractory sarcoma were evaluable at this recommended Phase 2 dose level. The median progression free survival was 315 days (range 27-799). Response rate, defined as stable disease or better for 60 days, was 53%. Nine of the patients had been previously treated with doxorubicin. Therapy was well tolerated. In a small number of patients, pre- and post- treatment tumor biopsies were available for assessment of ALDH expression as a marker of CSCs and showed a correlation between response and decreased ALDH expression. We also found a correlation between biopsy-proven inhibition of mTOR and response. CONCLUSIONS: Our study adds to the literature supporting the addition of mTOR inhibition to chemotherapy agents for the treatment of sarcomas, and proposes that a mechanism by which mTOR inhibition enhances the efficacy of chemotherapy may be through sensitizing the chemoresistant CSC population. Further study, ideally with pre- and post-therapy assessment of ALDH expression in tumor cells, is warranted.Trial registration The trial was registered on clinicaltrials.gov (NCT00949325) on 30 July 2009. http://www.editorialmanager.com/csrj/default.aspx.

15.
Biol Blood Marrow Transplant ; 24(10): 2040-2046, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-29933069

RESUMEN

We enrolled 150 patients in a prospective multicenter study of children with acute myeloid leukemia undergoing hematopoietic stem cell transplantation (HSCT) to compare the detection of measurable residual disease (MRD) by a "difference from normal" flow cytometry (ΔN) approach with assessment of Wilms tumor 1 (WT1) gene expression without access to the diagnostic specimen. Prospective analysis of the specimens using this approach showed that 23% of patients screened for HSCT had detectable residual disease by ΔN (.04% to 53%). Of those patients who proceeded to transplant as being in morphologic remission, 10 had detectable disease (.04% to 14%) by ΔN. The disease-free survival of this group was 10% (0 to 35%) compared with 55% (46% to 64%, P < .001) for those without disease. The ΔN assay was validated using the post-HSCT specimen by sorting abnormal or suspicious cells to confirm recipient or donor origin by chimerism studies. All 15 patients who had confirmation of tumor detection relapsed, whereas the 2 patients with suspicious phenotype cells lacking this confirmation did not. The phenotype of the relapse specimen was then used retrospectively to assess the pre-HSCT specimen, allowing identification of additional samples with low levels of MRD involvement that were previously undetected. Quantitative assessment of WT1 gene expression was not predictive of relapse or other outcomes in either pre- or post-transplant specimens. MRD detected by ΔN was highly specific, but did not identify most relapsing patients. The application of the assay was limited by poor quality among one-third of the specimens and lack of a diagnostic phenotype for comparison.


Asunto(s)
Citometría de Flujo , Trasplante de Células Madre Hematopoyéticas , Leucemia Mieloide Aguda , Acondicionamiento Pretrasplante , Donante no Emparentado , Proteínas WT1/sangre , Adolescente , Adulto , Aloinjertos , Niño , Preescolar , Supervivencia sin Enfermedad , Femenino , Humanos , Lactante , Recién Nacido , Leucemia Mieloide Aguda/sangre , Leucemia Mieloide Aguda/mortalidad , Leucemia Mieloide Aguda/terapia , Masculino , Neoplasia Residual , Trasplante Homólogo
16.
Biol Blood Marrow Transplant ; 23(12): 2127-2136, 2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-28807769

RESUMEN

High-risk, recurrent, or refractory solid tumors in pediatric, adolescent, and young adult (AYA) patients have an extremely poor prognosis despite current intensive treatment regimens. We piloted an allogeneic bone marrow transplant platform using reduced-intensity conditioning (RIC) and partially HLA-mismatched (haploidentical) related donors for this population of pediatric and AYA solid tumor patients. Sixteen patients received fludarabine, cyclophosphamide, melphalan, and low-dose total body irradiation RIC haploidentical BMT (haploBMT) followed by post-transplantation cyclophosphamide (PTCy), mycophenolate mofetil, and sirolimus. All assessable patients were full donor chimeras on day 30 with a median neutrophil recovery of 19 days and platelet recovery of 21 days. One patient (7%) exhibited secondary graft failure associated with concomitant infection. The median follow-up time was 15 months. Overall survival was 88%, 56%, and 21% at 6, 12, and 24 months, respectively. Median survival from transplant date was 14 months with a median progression-free survival 7 months. We observed limited graft-versus-host disease in 3 patients and nonrelapse mortality in 1 patient. We demonstrated that RIC haploBMT with PTCy is feasible and has acceptable toxicities in patients with incurable pediatric and AYA solid tumors; thus, this approach serves as a platform for post-transplant strategies to prevent relapse and optimize progression-free survival.


Asunto(s)
Trasplante de Médula Ósea/métodos , Ciclofosfamida/uso terapéutico , Neoplasias/terapia , Adolescente , Adulto , Trasplante de Médula Ósea/mortalidad , Niño , Preescolar , Supervivencia de Injerto , Humanos , Neoplasias/mortalidad , Trasplante Haploidéntico/mortalidad , Resultado del Tratamiento , Adulto Joven
17.
Biol Blood Marrow Transplant ; 23(2): 325-332, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27888014

RESUMEN

Lower-intensity conditioning regimens for haploidentical blood or marrow transplantation (BMT) are safe and efficacious for adult patients with hematologic malignancies. We report data for pediatric/young adult patients with high-risk hematologic malignancies (n = 40) treated with nonmyeloablative haploidentical BMT with post-transplantation cyclophosphamide from 2003 to 2015. Patients received a preparative regimen of fludarabine, cyclophosphamide, and total body irradiation. Post-transplantation immunosuppression consisted of cyclophosphamide, mycophenolate mofetil, and tacrolimus. Donor engraftment occurred in 29 of 32 (91%), with median time to engraftment of neutrophils >500/µL of 16 days (range, 13 to 22) and for platelets >20,000/µL without transfusion of 18 days (range, 12 to 62). Cumulative incidences of acute graft-versus-host disease (GVHD) grades II to IV and grades III and IV at day 100 were 33% and 5%, respectively. The cumulative incidence of chronic GVHD was 23%, with 7% moderate-to-severe chronic GVHD, according to National Institutes of Health consensus criteria. Transplantation-related mortality (TRM) at 1 year was 13%. The cumulative incidence of relapse at 2 years was 52%. With a median follow-up of 20 months (range, 3 to 148), 1-year actuarial overall and event-free survival were 56% and 43%, respectively. Thus, we demonstrate excellent rates of engraftment, GVHD, and TRM in pediatric/young adult patients treated with this regimen. This approach is a widely available, safe, and feasible option for pediatric and young adult patients with high-risk hematologic malignancies, including those with a prior history of myeloablative BMT and/or those with comorbidities or organ dysfunction that preclude eligibility for myeloablative BMT.


Asunto(s)
Trasplante de Médula Ósea , Ciclofosfamida/uso terapéutico , Neoplasias Hematológicas/terapia , Inmunosupresores/uso terapéutico , Acondicionamiento Pretrasplante/métodos , Adolescente , Aloinjertos , Niño , Preescolar , Supervivencia sin Enfermedad , Femenino , Enfermedad Injerto contra Huésped/etiología , Histocompatibilidad , Humanos , Lactante , Recién Nacido , Masculino , Síndromes Mielodisplásicos/terapia , Estudios Retrospectivos , Riesgo , Resultado del Tratamiento , Adulto Joven
18.
Acad Med ; 92(5): 608-613, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-27603038

RESUMEN

As quality improvement and patient safety come to play a larger role in health care, academic medical centers and health systems are poised to take a leadership role in addressing these issues. Academic medical centers can leverage their large integrated footprint and have the ability to innovate in this field. However, a robust quality management infrastructure is needed to support these efforts. In this context, quality and safety are often described at the executive level and at the unit level. Yet, the role of individual departments, which are often the dominant functional unit within a hospital, in realizing health system quality and safety goals has not been addressed. Developing a departmental quality management infrastructure is challenging because departments are diverse in composition, size, resources, and needs.In this article, the authors describe the model of departmental quality management infrastructure that has been implemented at the Johns Hopkins Hospital. This model leverages the fractal approach, linking departments horizontally to support peer and organizational learning and connecting departments vertically to support accountability to the hospital, health system, and board of trustees. This model also provides both structure and flexibility to meet individual departmental needs, recognizing that independence and interdependence are needed for large academic medical centers. The authors describe the structure, function, and support system for this model as well as the practical and essential steps for its implementation. They also provide examples of its early success.


Asunto(s)
Centros Médicos Académicos/organización & administración , Atención a la Salud/organización & administración , Departamentos de Hospitales/organización & administración , Garantía de la Calidad de Atención de Salud/organización & administración , Mejoramiento de la Calidad/organización & administración , Humanos , Liderazgo , Modelos Organizacionales , Seguridad del Paciente
19.
Pediatr Blood Cancer ; 64(3)2017 03.
Artículo en Inglés | MEDLINE | ID: mdl-27650634

RESUMEN

To date, there has been a lack of pediatric experience regarding the efficacy and tolerability of immune checkpoint inhibitors after haploidentical hematopoietic stem cell transplant (HSCT). We present the case of a 22-year-old female with multiple-relapsed Hodgkin lymphoma (HL) who presented with a new relapse after haploidentical (post-haplo) HSCT. Anti-PD-1 therapy with nivolumab resulted in significant objective disease response and clinical improvement without notable side effects, including the absence of a graft-versus-host disease (GVHD). This case report suggests that immune checkpoint inhibition may be safely tolerated even in the setting of haploidentical HSCT, without triggering overt GVHD.


Asunto(s)
Anticuerpos Monoclonales/uso terapéutico , Trasplante de Médula Ósea/efectos adversos , Enfermedad Injerto contra Huésped/prevención & control , Enfermedad de Hodgkin/tratamiento farmacológico , Tolerancia Inmunológica/inmunología , Linfocitos T/efectos de los fármacos , Adulto , Antineoplásicos/uso terapéutico , Femenino , Enfermedad Injerto contra Huésped/inmunología , Enfermedad de Hodgkin/terapia , Humanos , Depleción Linfocítica , Nivolumab , Pronóstico , Trasplante Homólogo , Adulto Joven
20.
J Pediatr Hematol Oncol ; 38(8): 627-635, 2016 11.
Artículo en Inglés | MEDLINE | ID: mdl-27467367

RESUMEN

OBJECTIVE: Use of high-dose cyclophosphamide without hematopoietic stem cell transplant to treat severe aplastic anemia (SAA) has been controversial due to concern for increased infectious toxicity as compared with antithymocyte globulin and cyclosporine A. As children often tolerate dose-intensive therapy better than adults, we sought to perform a detailed retrospective analysis of both treatment response and toxicity in 28 patients younger than 22 years of age treated with 29 courses of high-dose cyclophosphamide as the sole form of immunosuppression. STUDY DESIGN: Children and adolescents with SAA who lacked an human leukocyte antigen-matched sibling donor were treated with cyclophosphamide 50 mg/kg/d for 4 consecutive days then received daily granulocyte colony stimulating factor until neutrophil recovery, transfusion support, and antimicrobial prophylaxis. RESULTS: Overall survival was 85%, with hematologic response of 79% and complete response of 66%. Cumulative incidences of bacterial infection (86%) and fungal infection (62%) were high but deaths due to infection were rare, as were clonal evolution (1/28), clinically relevant paroxysmal nocturnal (1/28), and relapse (2/28). CONCLUSIONS: Response rates and survival following high-dose cyclophosphamide in pediatric patients with SAA exceed those seen in adults and compare favorably to antithymocyte globulin/cyclosporine A with manageable infectious toxicity.


Asunto(s)
Anemia Aplásica/tratamiento farmacológico , Ciclofosfamida/administración & dosificación , Adolescente , Anemia Aplásica/complicaciones , Anemia Aplásica/mortalidad , Niño , Preescolar , Evolución Clonal , Ciclofosfamida/toxicidad , Esquema de Medicación , Femenino , Factor Estimulante de Colonias de Granulocitos/administración & dosificación , Humanos , Infecciones/inducido químicamente , Masculino , Recurrencia , Estudios Retrospectivos , Tasa de Supervivencia , Resultado del Tratamiento , Adulto Joven
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