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2.
J Gastrointest Surg ; 27(12): 2920-2930, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37968551

RESUMEN

BACKGROUND: Tertiary medical centers in the USA provide specialized, high-volume surgical cancer care, contributing standards for quality and outcomes. For the most vulnerable populations, safety-net hospitals (SNHs) remain the predominant provider of both complex and routine healthcare needs. The objective of this study was to evaluate access to and quality of surgical oncology care within SNHs. METHODS: A comprehensive and systematic review of the literature was conducted using PubMed, EMBASE, and Cochrane Library databases to identify all studies (January 2000-October 2021) reporting the delivery of surgical cancer care at SNHs in the USA (PROSPERO #CRD42021290092). These studies describe the process and/or outcomes of surgical care for gastrointestinal, hepatopancreatobiliary, or breast cancer patients seeking treatment at SNHs. RESULTS: Of 3753 records, 37 studies met the inclusion criteria. Surgical care for breast cancer (43%) was the most represented, followed by colorectal (30%) and hepatopancreatobiliary (16%) cancers. Financial constraints, cultural and language barriers, and limitations to insurance coverage were cited as common reasons for disparities in care within SNHs. Advanced disease at presentation was common among cancer patients seeking care at SNHs (range, 24-61% of patients). Though reports comparing cancer survival between SNHs and non-SNHs were few, results were mixed, underscoring the variability in care seen across SNHs. CONCLUSIONS: These findings highlight barriers in care facing many cancer patients. Continued efforts should address improving both access and quality of care for SNH patients. Future models include a transition away from a two-tiered system of resourced and under-resourced hospitals toward an integrated cancer system.


Asunto(s)
Neoplasias de la Mama , Proveedores de Redes de Seguridad , Humanos , Femenino , Hospitales , Neoplasias de la Mama/cirugía
3.
Expert Opin Drug Saf ; 22(9): 783-788, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37594915

RESUMEN

INTRODUCTION: Nuclear reactor incidents and bioterrorism outbreaks are concerning public health disasters. Little is known about US Food and Drug Administration (FDA)-approved agents that can mitigate consequences of these events. We review FDA data supporting regulatory approvals of these agents. AREAS COVERED: We reviewed pharmaceutical products approved to treat Hematopoietic Acute Radiation Syndrome (H-ARS) and to treat or prevent pulmonary infections following Bacillus anthracis (anthrax) exposure. Four drugs were approved for H-ARS: granulocyte-colony stimulating factor (G-CSF), granulocyte/macrophage colony stimulating factor, pegylated G-CSF, and romiplostim. For bioterrorism-associated anthrax, the FDA approved five antibiotics (doxycycline, penicillin-G, levofloxacin, moxifloxacin, and ciprofloxacin), two monoclonal antibodies (obiltoxaximab and raxibacumab), one polyclonal antitoxin (Anthrax Immune Globulin Intravenous) and two vaccines (Anthrax Vaccine Adsorbed and Anthrax Vaccine Adsorbed with an adjuvant). A national stockpile system ensures that communities have ready access to these agents. Our literature search was based on data included in drugs@FDA (2001-2023). EXPERT OPINION: Two potential mass public health disasters are aerosolized anthrax dissemination and radiological incidents. Five agents authorized for anthrax emergencies only have FDA approval for this indication, five antibiotics have FDA approvals as antibiotics for common infections and for bacillus anthrax, and four agents have regulatory approvals for supportive care for cancer and for radiological incidents.


Asunto(s)
Síndrome de Radiación Aguda , Vacunas contra el Carbunco , Carbunco , Bacillus anthracis , Humanos , Estados Unidos , Carbunco/tratamiento farmacológico , Carbunco/prevención & control , Vacunas contra el Carbunco/uso terapéutico , Bioterrorismo/prevención & control , Explosiones , Antibacterianos , Síndrome de Radiación Aguda/tratamiento farmacológico , Reactores Nucleares , Factor Estimulante de Colonias de Granulocitos/uso terapéutico
6.
Cancer Treat Res ; 184: 113-127, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36449192

RESUMEN

Logistic regression is a statistical tool of paramount significance in the field of epidemiology1 and ranks as one of the most frequently published multivariable analyses for designs involving a single binary dependent variable and one or more independent variables in the fields of public health2,3 and medical4 research.


Asunto(s)
Aprendizaje Automático , Humanos
8.
J Natl Med Assoc ; 113(6): 706-712, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34521514

RESUMEN

BACKGROUND: Despite advances in healthcare and improved chemotherapy, disparities in breast cancer outcomes continue to persist. Our aim was to evaluate socioeconomic factors that may impact timing of treatment for patients receiving chemotherapy in underserved communities. METHODS: A review of patients with breast cancer who received neoadjuvant or adjuvant chemotherapy from 2015-2019 was conducted at a safety-net hospital. The primary outcomes were times from diagnosis to chemotherapy and surgery. Clinicodemographic factors including race, age, clinical stage, primary language, comorbidities, and median income by zip code were collected. Multivariable regression analysis was performed to evaluate for factors associated with the primary outcomes. RESULTS: One hundred patients were identified. For the neoadjuvant group, median time from diagnosis to chemotherapy and surgery was 52 ± 34 days and 256 ± 59 days, respectively. For the adjuvant group, median time from diagnosis to surgery and chemotherapy was 24.5 ± 18 days and 94.5 ± 53 days, respectively. Non-English language and older age were associated with increased time to chemotherapy in the adjuvant group (p < 0.05). Language and age were not associated with increased time to surgery in both groups. Race, age, comorbidities, and income were not associated with delay in treatment in either groups. CONCLUSIONS: Older age and non-English language were associated with prolonged time from surgery to adjuvant chemotherapy. Targeted interventions directed at patient education and decreasing language barriers especially post-operatively may decrease delays in treatment and subsequently reduce disparities seen in the breast cancer population.


Asunto(s)
Neoplasias de la Mama , Anciano , Neoplasias de la Mama/tratamiento farmacológico , Quimioterapia Adyuvante , Barreras de Comunicación , Femenino , Humanos , Estudios Retrospectivos , Proveedores de Redes de Seguridad , Factores de Tiempo
9.
J Surg Res ; 272: 96-104, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-34953372

RESUMEN

BACKGROUND: Professional organizations recently set guidelines for avoiding surgeries of low utility and overutilization for the Choosing Wisely campaign. These include re-excision for invasive cancer close to margins, double mastectomy in patients with unilateral breast cancer, axillary lymph node dissection in patients with limited nodal disease, and sentinel lymph node biopsy (SLNB) in patients ≥70 years with early-stage breast cancer. Variable adherence to these recommendations led us to evaluate implementation rates of low-value surgical guidelines at a safety-net hospital. METHODS: We retrospectively analyzed breast cancer patients who underwent surgery from 2015 to 2020. Each patient was assessed for eligibility for omission of the listed surgeries. Trends were evaluated by cohorts before and after a fellowship-trained breast surgeon joined the faculty in 2018. Outcomes were compared using Fisher's exact test. RESULTS: Among 195 patients, none underwent re-excision for close margins of invasive cancer. Only 6.7% of patients (3/45) received contralateral mastectomy and 1.8% of eligible patients (3/169) received axillary lymph node dissection. Overall, 60% of patients ≥ 70 years with stage 1 hormone-positive breast cancer (9/15) received SLNB. There was a downward trend from 71% of eligible patients receiving SLNB in 2015-2018 to 50% in 2019-2020. CONCLUSIONS: De-implementation of traditional surgical practices, deemed as low-value care, toward newer guidelines is achievable even at community hospitals serving a low socioeconomic community. By avoiding overtreatment, hospitals can achieve effective resource allocation which allow for social distributive justice among patients with breast cancer and ensure strategic use of scarce health economic resources while preserving patient outcomes.


Asunto(s)
Neoplasias de la Mama , Mastectomía , Axila/patología , Neoplasias de la Mama/patología , Neoplasias de la Mama/cirugía , Femenino , Humanos , Escisión del Ganglio Linfático , Estudios Retrospectivos , Proveedores de Redes de Seguridad , Biopsia del Ganglio Linfático Centinela
10.
Anticancer Res ; 41(7): 3607-3613, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34230157

RESUMEN

BACKGROUND/AIM: We evaluated timeliness of care at a safety-net hospital after implementation of a multidisciplinary breast program. PATIENTS AND METHODS: A prospective database of patients with breast cancer was created after multidisciplinary breast program initiation in 2018. Patients were tracked to obtain time to completion of diagnostic imaging, biopsy, and treatment initiation. Patients with breast cancer diagnosed from 2015-2017 were reviewed for comparison. RESULTS: A total of 102 patients were identified. There was no statistical difference in time to completion of imaging, biopsy, and initial treatment between the 2018 and the 2015-2017 cohorts (p>0.05). No statistical difference was observed in time to completion of imaging, biopsy, and initial treatment between different races (p>0.05). CONCLUSION: Within the same socioeconomic status, there was no differential delivery of screening, work-up, and treatment by race. Despite protocol implementations, efficiency of care remained limited in a safety-net hospital with lack of financial resources.


Asunto(s)
Neoplasias de la Mama/diagnóstico , Anciano , Biopsia , Mama/patología , Neoplasias de la Mama/patología , Manejo de Datos/métodos , Femenino , Equidad en Salud , Humanos , Tamizaje Masivo/métodos , Área sin Atención Médica , Persona de Mediana Edad , Clase Social
11.
EClinicalMedicine ; 31: 100693, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33554084

RESUMEN

BACKGROUND: Adverse drug/device reactions (ADRs) can result in severe patient harm. We define very serious ADRs as being associated with severe toxicity, as measured on the Common Toxicity Criteria Adverse Events (CTCAE)) scale, following use of drugs or devices with large sales, large financial settlements, and large numbers of injured persons. We report on impacts on patients, clinicians, and manufacturers following very serious ADR reporting. METHODS: We reviewed clinician identified very serious ADRs published between 1997 and 2019. Drugs and devices associated with reports of very serious ADRs were identified. Included drugs or devices had market removal discussed at Food and Drug Advisory (FDA) Advisory Committee meetings, were published by clinicians, had sales > $1 billion, were associated with CTCAE Grade 4 or 5 toxicity effects, and had either >$1 billion in settlements or >1,000 injured patients. Data sources included journals, Congressional transcripts, and news reports. We reviewed data on: 1) timing of ADR reports, Boxed warnings, and product withdrawals, and 2) patient, clinician, and manufacturer impacts. Binomial analysis was used to compare sales pre- and post-FDA Advisory Committee meetings. FINDINGS: Twenty very serious ADRs involved fifteen drugs and one device. Legal settlements totaled $38.4 billion for 753,900 injured persons. Eleven of 18 clinicians (61%) reported harms, including verbal threats from manufacturer (five) and loss of a faculty position (one). Annual sales decreased 94% from $29.1 billion pre-FDA meeting to $4.9 billion afterwards (p<0.0018). Manufacturers of four drugs paid $1.7 billion total in criminal fines for failing to inform the FDA and physicians about very serious ADRs. Following FDA approval, the median time to ADR reporting was 7.5 years (Interquartile range 3,13 years). Twelve drugs received Box warnings and one drug received a warning (median, 7.5 years following ADR reporting (IQR 5,11 years). Six drugs and 1 device were withdrawn from marketing (median, 5 years after ADR reporting (IQR 4,6 years)). INTERPRETATION: Because very serious ADRs impacts are so large, policy makers should consider developing independently funded pharmacovigilance centers of excellence to assist with clinician investigations. FUNDING: This work received support from the National Cancer Institute (1R01 CA102713 (CLB), https://www.nih.gov/about-nih/what-we-do/nih-almanac/national-cancer-institute-nci; and two Pilot Project grants from the American Cancer Society's Institutional Grant Award to the University of South Carolina (IRG-13-043-01) https://www.cancer.org/ (SH; BS).

12.
Oncologist ; 26(8): e1418-e1426, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-33586299

RESUMEN

Biosimilars are biologic drug products that are highly similar to reference products in analytic features, pharmacokinetics and pharmacodynamics, immunogenicity, safety, and efficacy. Biosimilar epoetin received Food and Drug Administration (FDA) approval in 2018. The manufacturer received an FDA nonapproval letter in 2017, despite receiving a favorable review by FDA's Oncologic Drugs Advisory Committee (ODAC) and an FDA nonapproval letter in 2015 for an earlier formulation. We discuss the 2018 FDA approval, the 2017 FDA ODAC Committee review, and the FDA complete response letters in 2015 and 2017; review concepts of litigation, naming, labeling, substitution, interchangeability, and pharmacovigilance; review European and U.S. oncology experiences with biosimilar epoetin; and review the safety of erythropoiesis-stimulating agents. In 2020, policy statements from AETNA, United Health Care, and Humana indicated that new epoetin oncology starts must be for biosimilar epoetin unless medical need for other epoetins is documented. Empirical studies report that as of 2012, reference epoetin use decreased from 40%-60% of all patients with cancer with chemotherapy-induced anemia to <5% of such patients because of safety concerns. Between 2018 and 2020, biosimilar epoetin use varied, increasing to 81% among one private insurer's patients covered by Medicare whose cancer care is administered with Oncology Analytics and to 41% with the same private insurer's patients with cancer covered by commercial health insurance and administered by the private insurer, to 0% in several Veterans Administration Hospitals, increasing to 100% in one large county hospital in California, and with yet-to-be-reported data from most oncology settings. We conclude that biosimilar epoetin appears to have overcome some barriers since 2015, although current uptake in the U.S. is variable. Pricing and safety considerations for all erythropoiesis-stimulating agents are primary determinants of biosimilar epoetin oncology uptake. IMPLICATIONS FOR PRACTICE: Few oncologists understand substitution and interchangeability of biosimilars with reference drugs. Epoetin biosimilar is new to the market, and physician and patient understanding is limited. The development of epoetin biosimilar is not familiar to oncologists.


Asunto(s)
Anemia , Antineoplásicos , Biosimilares Farmacéuticos , Neoplasias , Anciano , Anemia/inducido químicamente , Anemia/tratamiento farmacológico , Antineoplásicos/efectos adversos , Biosimilares Farmacéuticos/efectos adversos , Epoetina alfa/uso terapéutico , Humanos , Medicare , Neoplasias/complicaciones , Neoplasias/tratamiento farmacológico , Estados Unidos
13.
Radiol Case Rep ; 16(4): 829-834, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33552334

RESUMEN

Right-sided heart failure is a common sequela of left heart failure and seldom presents as a primary disorder. The differential diagnosis of right heart failure includes a cardiac tumor. Cardiac malignancies are rare tumors with an overall poor prognosis. We evaluated a 69-year-old man who presented with a 3-week history of progressive lower extremity swelling, ascites, and scrotal swelling. Laboratory studies were significant only for mildly elevated liver function tests. CT scan of the abdomen and pelvis showed ascites, hepatic swelling, and a bland clot in the inferior vena cava extending from the level of the kidneys to the right atrium. A large mass originating from the right atrium was identified, and biopsy confirmed an undifferentiated pleomorphic cardiac sarcoma. Given the extensive tumor and clot burden, he was not an operative candidate. He developed portal hypertension with esophageal varices and expired due to variceal bleeding.

14.
PLoS One ; 15(6): e0234541, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32584835

RESUMEN

Erythropoisis stimulating agent (ESA) use was addressed in Food and Drug Administration (FDA) Oncology Drug Advisory Committee (ODAC) meetings between 2004 and 2008. FDA safety-focused regulatory actions occurred in 2007 and 2008. In 2007, black box warnings advised of early death and venous thromboembolism (VTE) risks with ESAs in oncology. In 2010, a Risk Evaluation Strategies (REMS) was initiated, with cancer patient consent that mortality and VTE risks were noted with ESAs. We report warnings and REMS impacts on ESA utilization among Veterans Administration (VA) cancer patients with chemotherapy-induced anemia (CIA). Data were from Veterans Affairs database (2003-2012). Epoetin and darbepoetin use were primary outcomes. Segmented linear regression was used to estimate changes in ESA use levels and trends, clinical appropriateness, and adverse events (VTEs) among chemotherapy-treated cancer patients. To estimate changes in level of drug prescription rate after policy actions, model-specific indicator variables as covariates based on specific actions were included. ESA use fell by 95% and 90% from 2005, for epoetin and darbepoetin, from 22% and 11%, respectively, to 1% and 1%, respectively, among cancer patients with CIA, respectively (p<0.01). Following REMS in 2010, mean hematocrit levels at ESA initiation decreased from 30% to 21% (p<0.01). Black box warnings preceded decreased ESA use among VA cancer patients with CIA. REMS was followed by reduced hematocrit levels at ESA initiation. Our findings contrast with privately- insured and Medicaid insured cancer patient data on chemotherapy-induced anemia where ESA use decreased to 3% to 7% by 2010-2012. By 2012, the era of ESA administration to VA to cancer patients had ended but the warnings remain relevant and significant. In 2019, oncology/hematology national guidelines (ASCO/ASH) recommend that cancer patients with chemotherapy-induced anemia should receive ESAs or red blood cell transfusions after risk-benefit evaluation.


Asunto(s)
Anemia/epidemiología , Antineoplásicos/efectos adversos , Hematínicos/efectos adversos , Neoplasias/tratamiento farmacológico , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Anemia/inducido químicamente , Anemia/patología , Anemia/prevención & control , Antineoplásicos/uso terapéutico , Etiquetado de Medicamentos , Femenino , Hematínicos/uso terapéutico , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/epidemiología , Neoplasias/patología , Estados Unidos/epidemiología , United States Department of Veterans Affairs , Tromboembolia Venosa , Adulto Joven
15.
Int J Cancer ; 146(10): 2829-2835, 2020 05 15.
Artículo en Inglés | MEDLINE | ID: mdl-32037527

RESUMEN

Erythropoiesis-stimulating agents (ESAs) are available to treat chemotherapy-induced anemia (CIA). In 2007-2008, regulatory notifications advised of venous thromboembolism and mortality risks while the Center for Medicare and Medicaid Services' restricted ESA initiation to patients with hemoglobin <10 g/dl. In 2010, a Risk Evaluation and Mitigation Strategies required consent prior to administration. We evaluated ESA utilization from 2003 to 2012 and obtained private health insurer claims data for persons with lung, colorectal, or breast cancer from 2001 to 2012. ESA use for CIA was determined by an ESA claim after chemotherapy, up to 6 months after treatment. We identified 839,948 commercially insured patients, including 24,785 patients with ESA-treated CIA (3.2%). Darbepoetin use increased 3.9-fold from 2003 to 2007 (12.3% to 48.7%) and then decreased 95% to 2.6% by 2012. Epoetin use decreased 90% from 2003 to 2012 (30.3% to 3.1%). Between 2003 and 2012, mean epoetin dosing decreased 0.8-fold (244,979 in 2003 vs. 196,216 units in 2012), but increased 1.8-fold for darbepoetin-treated CIA (262 in 2003 to 467 µg in 2012). Among CIA patients, transfusions were low (4.5%) in 2002-2007, then increased 2.2-fold between 2008 and 2012. Safety initiatives between 2007 and 2010 facilitated reductions in ESA use combined with changes in coverage. These data show the efficacy of regulatory efforts, publication of adverse events and changes in reimbursement in reducing use of ESAs. Future studies are warranted to optimize deimplementation strategies to improve patient safety.


Asunto(s)
Anemia/inducido químicamente , Anemia/tratamiento farmacológico , Antineoplásicos/efectos adversos , Hematínicos/uso terapéutico , Oncología Médica/tendencias , Adulto , Femenino , Humanos , Masculino , Pautas de la Práctica en Medicina/tendencias , Estados Unidos
16.
PLoS One ; 14(7): e0219521, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31365527

RESUMEN

Oncology-associated adverse drug/device reactions can be fatal. Some clinicians who treat single patients with severe oncology-associated toxicities have researched case series and published this information. We investigated motivations and experiences of select individuals leading such efforts. Clinicians treating individual patients who developed oncology-associated serious adverse drug events were asked to participate. Inclusion criteria included having index patient information, reporting case series, and being collaborative with investigators from two National Institutes of Health funded pharmacovigilance networks. Thirty-minute interviews addressed investigational motivation, feedback from pharmaceutical manufacturers, FDA personnel, and academic leadership, and recommendations for improving pharmacovigilance. Responses were analyzed using constant comparative methods of qualitative analysis. Overall, 18 clinicians met inclusion criteria and 14 interviewees are included. Primary motivations were scientific curiosity, expressed by six clinicians. A less common theme was public health related (three clinicians). Six clinicians received feedback characterized as supportive from academic leaders, while four clinicians received feedback characterized as negative. Three clinicians reported that following the case series publication they were invited to speak at academic institutions worldwide. Responses from pharmaceutical manufacturers were characterized as negative by 12 clinicians. One clinician's wife called the post-reporting time the "Maalox month," while another clinician reported that the manufacturer collaboratively offered to identify additional cases of the toxicity. Responses from FDA employees were characterized as collaborative for two clinicians, neutral for five clinicians, unresponsive for negative by six clinicians. Three clinicians endorsed developing improved reporting mechanisms for individual physicians, while 11 clinicians endorsed safety activities that should be undertaken by persons other than a motivated clinician who personally treats a patient with a severe adverse drug/device reaction. Our study provides some of the first reports of clinician motivations and experiences with reporting serious or potentially fatal oncology-associated adverse drug or device reactions. Overall, it appears that negative feedback from pharmaceutical manufacturers and mixed feedback from the academic community and/or the FDA were reported. Big data, registries, Data Safety Monitoring Boards, and pharmacogenetic studies may facilitate improved pharmacovigilance efforts for oncology-associated adverse drug reactions. These initiatives overcome concerns related to complacency, indifference, ignorance, and system-level problems as barriers to documenting and reporting adverse drug events- barriers that have been previously reported for clinician reporting of serious adverse drug reactions.


Asunto(s)
Antineoplásicos/efectos adversos , Edición , Sistemas de Registro de Reacción Adversa a Medicamentos , Humanos , Entrevistas como Asunto , Oncología Médica , Publicaciones Periódicas como Asunto , Farmacovigilancia , Estados Unidos , United States Food and Drug Administration
17.
ACS Med Chem Lett ; 10(5): 822-827, 2019 May 09.
Artículo en Inglés | MEDLINE | ID: mdl-31098006

RESUMEN

The rhenium(I) complex fac-[Re(CO)3(2,9-dimethyl-1,10-phenanthroline)(OH2)]+ (1) was previously shown to exhibit potent in vitro anticancer activity in a manner distinct from conventional platinum-based drugs (J. Am. Chem. Soc. 2017, 139, 14302-14314). In this study, we report further efforts to explore its aqueous speciation and antitumor activity. The cellular uptake of 1 was measured in A2780 and cisplatin-resistant A2780CP70 ovarian cancer cells by inductively coupled plasma mass spectrometry, revealing similar uptake efficiency in both cell lines. High accumulation in the mitochondria was observed, contradicting prior fluorescence microscopy studies. The luminescence of 1 is highly dependent on pH and coordination environment, making fluorescence microscopy somewhat unreliable for determining compound localization. The in vivo anticancer activity of 1 was evaluated in mice bearing patient-derived ovarian cancer tumor xenografts. These studies conclusively show that 1 is capable of inhibiting tumor growth, providing further credibility for the use of these compounds as anticancer agents.

18.
Oncologist ; 24(4): 537-548, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30842244

RESUMEN

Biosimilar filgrastims are primarily indicated for chemotherapy-induced neutropenia prevention. They are less expensive formulations of branded filgrastim, and biosimilar filgrastim was the first biosimilar oncology drug administered in European Union (EU) countries, Japan, and the U.S. Fourteen biosimilar filgrastims have been marketed in EU countries, Japan, the U.S., and Canada since 2008, 2012, 2015, and 2016, respectively. We reviewed experiences and policies for biosimilar filgrastim markets in EU countries and Japan, where uptake has been rapid, and in the U.S. and Canada, where experience is rapidly emerging. U.S. regulations for designating biosimilar interchangeability are under development, and such regulations have not been developed in most other countries. Pharmaceutical substitution is allowed for new filgrastim starts in some EU countries and in Canada, but not Japan and the U.S. In EU countries, biosimilar adoption is facilitated with favorable hospital tender offers. U.S. adoption is reportedly 24%, while the second filgrastim biosimilar is priced 30% lower than branded filgrastim and 20% lower than the first biosimilar filgrastim approved by the U.S. Food and Drug Administration. Utilization is about 60% in EU countries, where biosimilar filgrastim is marketed at a 30%-40% discount. In Japan, biosimilar filgrastim utilization is 45%, primarily because of 35% discounts negotiated by Central Insurance and hospital-only markets. Overall, biosimilar filgrastim adoption barriers are small in many EU countries and Japan and are diminishing in Canada in the U.S. Policies facilitating improved U.S. adoption of biosimilar filgrastim, based on positive experiences in EU countries and Japan, including favorable insurance coverage; larger price discount relative to reference filgrastim pricing; closing of the "rebate trap" with transparent pricing information; formal educational efforts of patients, physicians, caregivers, and providers; and allowance of pharmaceutical substitution of biosimilar versus reference filgrastim, should be considered. IMPLICATIONS FOR PRACTICE: We reviewed experiences and policies for biosimilar filgrastims in Europe, Japan, Canada, and the U.S. Postmarketing harmonization of regulatory policies for biosimilar filgrastims has not occurred. Acceptance of biosimilar filgrastims for branded filgrastim, increasing in the U.S. and in Canada, is commonplace in Japan and Europe. In the U.S., some factors, accepted in Europe or Japan, could improve uptake, including acceptance of biosimilars as safe and effective; larger cost savings, decreasing "rebate traps" where pharmaceutical benefit managers support branded filgrastim, decreased use of patent litigation/challenges, and allowing pharmacists to routinely substitute biosimilar for branded filgrastim.


Asunto(s)
Antineoplásicos/efectos adversos , Biosimilares Farmacéuticos/uso terapéutico , Ahorro de Costo/estadística & datos numéricos , Costos de los Medicamentos/legislación & jurisprudencia , Industria Farmacéutica/legislación & jurisprudencia , Filgrastim/uso terapéutico , Neutropenia/tratamiento farmacológico , Biosimilares Farmacéuticos/economía , Canadá/epidemiología , Europa (Continente)/epidemiología , Filgrastim/economía , Fármacos Hematológicos/economía , Fármacos Hematológicos/uso terapéutico , Humanos , Incidencia , Japón/epidemiología , Neoplasias/tratamiento farmacológico , Neutropenia/inducido químicamente , Neutropenia/epidemiología , Estados Unidos/epidemiología , United States Food and Drug Administration
19.
Mayo Clin Proc Innov Qual Outcomes ; 3(4): 485-494, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31993568

RESUMEN

OBJECTIVE: To assess our adherence to treatment guidelines for diffuse large B-cell lymphoma (DLBCL) established by the American Society of Hematology in 2014 through implementation of a quality improvement initiative (QII) at our institution in 2015. PATIENTS AND METHODS: Patients with newly diagnosed DLBCL treated from January 1, 2006, through December 31, 2017, were identified. Electronic medical records were reviewed for documentation of American Society of Hematology Practice Improvement Module quality measures (eg, key pathologic features of DLBCL, lymphoma staging, and screening for hepatitis B virus [HBV] infection in patients receiving rituximab-based chemotherapy). We also reviewed assessment of prognosis by revised International Prognostic Index score, testing for hepatitis C virus, HBV, and HIV, chemotherapy education, and the addition of rituximab in the treatment regimen of CD20+ DLBCL. RESULTS: Following QII implementation, we saw improvements in most metrics, including reporting of key molecular features (fluorescence in situ hybridization for c-MYC, BCL2, and BCL6, from 45.5% [75 of 165 patients] before QII to 91.7% [22 of 24 patients] after QII; P<.001), screening for HBV (41.8% [69 of 165 patients] to 91.7% [22 of 24 patients]; P<.001) and HIV infections (33.9% [56 of 165 patients] to 87.5% [21 of 24 patients]; P<.0001), providing chemotherapy education (92.7% [153 of 165 patients] to 100%), and use of rituximab for CD20+ DLBCL (83.6% [138 of 165 patients] to 100%; P=.05). All patients had positron emission tomography-computed tomography for DLBCL staging, and there was significantly lower use of bone marrow biopsy (P=.011). CONCLUSION: Implementating a QII and employing standardized metrics can aid in improving quality of care for patients with newly diagnosed DLBCL and allow opportunities to build and ensure better adherence to evolving patient care guidelines.

20.
Oncotarget ; 9(52): 29877-29891, 2018 Jul 06.
Artículo en Inglés | MEDLINE | ID: mdl-30042820

RESUMEN

Heuristics and the application of fast-and-frugal trees may play a role in establishing a clinical decision-making framework for value-based oncology. We determined whether clinical decision-making in oncology can be structured heuristically based on the timeline of the patient's treatment, clinical intuition, and evidence-based medicine. A group of 20 patients with advanced non-small cell lung cancer (NSCLC) were enrolled into the study for extensive treatment analysis and sequential decision-making. The extensive clinical and genomic data allowed us to evaluate the methodology and efficacy of fast-and-frugal trees as a way to quantify clinical decision-making. The results of the small cohort will be used to further advance the heuristic framework as a way of evaluating a large number of patients within registries. Among the cohort whose data was analyzed, substitution and amplification mutations occurred most frequently. The top five most prevalent genomic alterations were TP53 (45%), ALK (40%), LRP1B (30%), CDKN2A (25%), and MYC (25%). These 20 cases were analyzed by this clinical decision-making process and separated into two distinctions: 10 straightforward cases that represented a clearer decision-making path and 10 complex cases that represented a more intricate treatment pathway. The myriad of information from each case and their distinct pathways was applied to create the foundation of a framework for lung cancer decision-making as an aid for oncologists. In late-stage lung cancer patients, the fast-and-frugal heuristics can be utilized as a strategy of quantifying proper decision-making with limited information.

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