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1.
J Manag Care Spec Pharm ; : 1-8, 2024 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-39298335

RESUMO

BACKGROUND: The Centers for Medicare and Medicaid Services (CMS) recently announced the Maximum Fair Price for the first 10 Medicare Part D drugs selected for price negotiation. By February 2025, CMS should announce the list of Part D drugs to be negotiated with implementation of the negotiated prices in 2027. OBJECTIVE: To identify up to 15 Medicare Part D single-source drugs anticipated to be selected by CMS for price negotiation in 2025. METHODS: We followed selection criteria identified in the Inflation Reduction Act and CMS guidance to identify drugs. We projected 2023 Part D gross spending using 2020-2022 data reported by CMS and linear prediction models. We ranked products according to the projected spending figure and identified those not eligible for selection because of (1) number of years since approval, (2) availability of a biosimilar or generic version, (3) approval for a single orphan indication, (4) whole human blood or plasma-derived, or (5) eligibility for the small biotech exception. RESULTS: We identified 13 products likely subject to Medicare drug price negotiation, including 4 anticancer therapies, 3 noninsulin antidiabetic products, 2 inhalers, 1 antifibrotic therapy, 1 gastrointestinal agent, 1 enzyme replacement therapy, and 1 product indicated for dyskinesia. These 13 products each had projected annual gross Part D spending more than $1 billion. We identified 7 additional products with uncertainty to complete the list of 15, including an insulin, an antiviral, an antibiotic, an immunologic agent, an antidiabetic, and 2 cancer drugs. These products had projected gross Part D spending between $877 million and $1.399 billion. Twenty-two products with comparable levels of spending were deemed ineligible for selection because of availability of a generic or biosimilar version (10 products), insufficient years since approval (8 products), eligibility for the small biotech exception (3 products), and expected market discontinuation (1 product). CONCLUSIONS: Our identification of products anticipated to be selected for negotiation in 2025 (with implementation of negotiated prices in 2027) will help inform manufacturers, payers, patients, and policymakers of the products that will likely see a decrease in Medicare drug prices as result of negotiation. We identified 22 products with levels of spending that are comparable with those anticipated to be selected for negotiation but are not eligible, primarily because of generic or biosimilar availability or insufficient time on market.

2.
AIDS Patient Care STDS ; 38(9): 382-392, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39284166

RESUMO

Side effects are a common concern of current and potential HIV pre-exposure prophylaxis (PrEP) users, potentially leading to missed doses. We examined the relationship between reported side effects and adherence in the Ontario PrEP Cohort Study (ON-PrEP). In total, 600 predominantly gay (87.3%), White (65.8%), and male (95.0%) participants completed questionnaires assessing the presence and severity of five side effect categories (nausea, diarrhea, headache, abdominal pain, and "other") as well as their adherence to daily PrEP (any missed doses in the previous 4 days). In total, 175 participants (29%) ever reported experiencing side effects: most commonly diarrhea (7.5% of study visits), and most were of mild severity. Lower incomes (p = 0.01), identifying as bisexual (p = 0.04), and baseline concern about side effects (p < 0.001) were associated with ever reporting side effects. The odds of reporting any side effects decreased by a factor of 0.44 (95% confidence interval 0.25-0.80) with each additional year of PrEP use, however 1 in 10 participants still reported side effects after 1 year of use. The odds of reporting optimal adherence were 0.48 (0.28-0.83) times lower for participants reporting any side effects, 0.67 (0.51-0.89) times lower per additional side effect category reported, and 0.78 (0.65-0.97) times lower per incremental increase in side effect severity ratings. We found some evidence of interaction between side effect measures and duration of PrEP use, suggesting that these relationships were stronger for participants taking PrEP for longer. Clinicians should make efforts to ascertain patients' experience of side effects and consider risk counseling and alternative PrEP regimens to promote adherence.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Adesão à Medicação , Profilaxia Pré-Exposição , Humanos , Profilaxia Pré-Exposição/estatística & dados numéricos , Masculino , Infecções por HIV/prevenção & controle , Ontário/epidemiologia , Adulto , Fármacos Anti-HIV/administração & dosagem , Fármacos Anti-HIV/efeitos adversos , Feminino , Adesão à Medicação/estatística & dados numéricos , Estudos de Coortes , Pessoa de Meia-Idade , Inquéritos e Questionários , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia
3.
Eur Respir Rev ; 33(173)2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39231597

RESUMO

BACKGROUND: The overall burden of bronchiectasis on patients and healthcare systems has not been comprehensively described. Here, we present the findings of a systematic literature review that assessed the clinical and socioeconomic burden of bronchiectasis with subanalyses by aetiology (PROSPERO registration: CRD42023404162). METHODS: Embase, MEDLINE and the Cochrane Library were searched for publications relating to bronchiectasis disease burden (December 2017-December 2022). Journal articles and congress abstracts reporting on observational studies, randomised controlled trials and registry studies were included. Editorials, narrative reviews and systematic literature reviews were included to identify primary studies. PRISMA guidelines were followed. RESULTS: 1585 unique publications were identified, of which 587 full texts were screened and 149 were included. A further 189 citations were included from reference lists of editorials and reviews, resulting in 338 total publications. Commonly reported symptoms and complications included dyspnoea, cough, wheezing, sputum production, haemoptysis and exacerbations. Disease severity across several indices and increased mortality compared with the general population was reported. Bronchiectasis impacted quality of life across several patient-reported outcomes, with patients experiencing fatigue, anxiety and depression. Healthcare resource utilisation was considerable and substantial medical costs related to hospitalisations, treatments and emergency department and outpatient visits were accrued. Indirect costs included sick pay and lost income. CONCLUSIONS: Bronchiectasis causes significant clinical and socioeconomic burden. Disease-modifying therapies that reduce symptoms, improve quality of life and reduce both healthcare resource utilisation and overall costs are needed. Further systematic analyses of specific aetiologies and paediatric disease may provide more insight into unmet therapeutic needs.


Assuntos
Bronquiectasia , Efeitos Psicossociais da Doença , Qualidade de Vida , Bronquiectasia/economia , Bronquiectasia/epidemiologia , Bronquiectasia/terapia , Bronquiectasia/mortalidade , Bronquiectasia/diagnóstico , Humanos , Custos de Cuidados de Saúde , Fatores Socioeconômicos , Feminino , Masculino
4.
Value Health ; 2024 Aug 21.
Artigo em Inglês | MEDLINE | ID: mdl-39154910

RESUMO

OBJECTIVES: By September 2024, the Centers for Medicare and Medicaid Services (CMS) will publicly report the negotiated prices (Maximum Fair Prices) for the first 10 drugs selected for price negotiation. We estimate initial price offers based on net prices, statutorily defined ceilings, and comparative effectiveness data for the 10 drugs and their therapeutic alternatives. METHODS: We utilized net prices and other price benchmarks for the 10 drugs and their therapeutic alternatives. We searched for data on comparative clinical effectiveness for the primary indications. We outlined a range of plausible initial price offers based on CMS guidance and our interpretation of regulatory intent. RESULTS: For ibrutinib and ustekinumab, statutorily defined ceiling prices will likely determine the initial price offers. The integration of net pricing and clinical evidence from comparator branded products will inform the initial price offers for apixaban, empagliflozin, etanercept, and insulin aspart. Rivaroxaban and sacubitril/valsartan have therapeutic alternatives that are generics; therefore, CMS may apply a discount to current net prices. To achieve savings in the negotiation of dapagliflozin and sitagliptin, CMS will have to leverage additional negotiation factors because statutory defined ceilings and net prices of therapeutic alternatives are similar or higher. CONCLUSIONS: This analysis sheds light on important price benchmarks and clinical evidence factors for the determination of the initial price offers. Although we were not able to simulate the offer and counter-offer process, our findings provide a transparent and systematic way to produce initial offers that are consistent with CMS guidance.

5.
JACC Adv ; 3(7): 101027, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39130027

RESUMO

Background: Approximately one-half of all heart failure (HF) consists of heart failure with preserved ejection fraction (HFpEF) or heart failure with mid-range ejection fraction (HFmrEF). Although several recent trials have investigated treatments for HFpEF/HFmrEF, there is limited insight on the long-term clinical trajectory of this population. Objectives: The purpose of this study was to model clinical outcomes in patients with symptomatic (NYHA functional class II-IV) HFpEF/HFmrEF over 10 years. Methods: We developed a Markov model with stable HF, HF hospitalization, and death states to follow a cohort of patients with HFpEF/HFmrEF treated with standard of care (SoC) recommended by the American Heart Association/American College of Cardiology/Heart Failure Society of America. Population characteristics and clinical event probabilities were derived from recent phase 3 HFpEF/HFmrEF trials. We used weighted averages for control and sodium-glucose cotransporter-2 inhibitor outcomes. SoC was informed by baseline treatments reported in clinical trials. Results: In a cohort of U.S. patients with HFpEF/HFmrEF treated with SoC, our model estimated 0.53 cumulative HF hospitalizations per patient over 10 years. Overall, 37% had at least 1 HF hospitalization, and 26% experienced cardiovascular death. The model estimated 6.1 years of life expectancy from age 72 and total cost of care over this time of $123,900. Conclusions: HFpEF/HFmrEF is associated with high rates of HF hospitalization and cardiovascular mortality based on contemporary clinical trials in this population. Furthermore, clinical trial results are likely to be more optimistic than real-world outcomes. Continuing to optimize care and treatment may reduce clinical burden and improve population health.

6.
Clin Neurophysiol ; 165: 76-87, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38968909

RESUMO

Treatment-resistant depression (TRD) is an epidemic with rising social, economic, and political costs. In a patient whose major depressive episode (MDE) persists through an adequate antidepressant trial, insurance companies often cover alternative treatments which may include repetitive transcranial magnetic stimulation (rTMS). RTMS is an FDA-cleared neuromodulation technique for TRD which is safe, efficacious, noninvasive, and well-tolerated. Recent developments in the optimization of rTMS algorithms and targeting have increased the efficacy of rTMS in treating depression, improved the clinical convenience of these treatments, and decreased the cost of a course of rTMS. In this opinion paper, we make a case for why conventional FDA-cleared rTMS should be considered as a first-line treatment for all adult MDEs. RTMS is compared to other first-line treatments including psychotherapy and SSRIs. These observations suggest that rTMS has similar efficacy, fewer side-effects, lower risk of serious adverse events, comparable compliance, the potential for more rapid relief, and cost-effectiveness. This suggestion, however, would be strengthened by further research with an emphasis on treatment-naive subjects in their first depressive episode, and trials directly contrasting rTMS with SSRIs or psychotherapy.


Assuntos
Transtorno Depressivo Maior , Estimulação Magnética Transcraniana , Humanos , Estimulação Magnética Transcraniana/métodos , Transtorno Depressivo Maior/terapia , Adulto , Transtorno Depressivo Resistente a Tratamento/terapia , Resultado do Tratamento
7.
J Manag Care Spec Pharm ; 30(7): 719-727, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38950157

RESUMO

Drug shortages threaten patients' access to medications and are associated with adverse health outcomes and increased costs. Drug shortages disproportionately occur among generic drugs of limited profitability, most notably drugs administered by injection. In this perspective, we discuss how reimbursement and purchasing practices that were meant to create an efficient marketplace for generics have generated strong price pressure that threatens profitability in certain markets. We further explain how, faced with limited profitability, manufacturers lack incentives to invest in resilient supply chains, and in some cases, engage in cost-containment strategies or decide to exit the market, ultimately contributing to shortages. We propose the development and implementation of value-based reimbursement to provide needed incentives for drug purchasers and manufacturers to establish a more reliable supply chain as part of the policy solution to reduce the number and extent of drug shortages. This reimbursement model would necessitate the development of a rating system that measures supply chain resilience and maturity for each generic product. This rating would then be applied as a value-based modifier to reimbursement rates for generic products. The proposed model would result in higher reimbursement rates for generic products from more dependable supply chains, generating incentives for manufacturers to invest in supply chain resiliency. We propose the application of this reimbursement system originally in Medicare given Congressional interest on reforming Medicare payment to prevent drug shortages.


Assuntos
Indústria Farmacêutica , Medicamentos Genéricos , Estados Unidos , Medicamentos Genéricos/economia , Medicamentos Genéricos/provisão & distribuição , Humanos , Indústria Farmacêutica/economia , Custos de Medicamentos , Controle de Custos , Preparações Farmacêuticas/provisão & distribuição , Preparações Farmacêuticas/economia , Aquisição Baseada em Valor , Mecanismo de Reembolso
8.
BMC Emerg Med ; 24(1): 114, 2024 Jul 12.
Artigo em Inglês | MEDLINE | ID: mdl-38992613

RESUMO

INTRODUCTION: Increasing numbers of ambulance calls, vacant positions and growing workloads in Emergency Medicine (EM) are increasing the pressure to find adequate solutions. With telemedicine providing health-care services by bridging large distances, connecting remote providers and even patients while using modern communication technologies, such a technology seems beneficial. As the process of developing an optimal solution is challenging, a need to quantify involved processes could improve implementation. Existing models are based on qualitative studies although standardised questionnaires for factors such as Usability, Acceptability and Effectiveness exist. METHODS: A survey was provided to participants within a German county. It was based on telemedical surveys, the System Usabilty Scale (SUS) and earlier works describing Usability, Acceptability and Effectiveness. Meanwhile a telemedical system was introduced in the investigated county. A comparison between user-groups aswell as an exploratory factor analysis (EFA) was performed. RESULTS: Of n = 91 included participants n = 73 (80,2%) were qualified as emergency medical staff (including paramedics n = 36 (39,56%), EMTs n = 28 (30,77%), call handlers n = 9 (9,89%)) and n = 18 (19,8%) as emergency physicians. Most participants approved that telemedicine positively impacts EM and improved treatment options with an overall Usabilty Score of 68,68. EFA provided a 3-factor solution involving Usability, Acceptability and Effectiveness. DISCUSSION: With our results being comparable to earlier studies but telemedicine only having being sparsely introduced, a positive attitude could still be attested. While our model describes 51,28% of the underlying factors, more research is needed to identify further influences. We showed that Usability is correlated with Acceptability (strong effect), Usability and Effectiveness with a medium effect, likewise Acceptability and Effectiveness. Therefore available systems need to improve. Our approach can be a guide for decision makers and developers, that a focus during implementation must be on improving usability and on a valid data driven implementation process.


Assuntos
Serviços Médicos de Emergência , Telemedicina , Humanos , Alemanha , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Atitude do Pessoal de Saúde , Inquéritos e Questionários , Medicina de Emergência
9.
J Manag Care Spec Pharm ; : 1-8, 2024 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-39012302

RESUMO

Biologic therapies play a critical role in modern medical practice but also present challenges for payers, patients, and other stakeholders because of their high cost. Biosimilars can mitigate the cost pressures of reference biologic therapy because they are typically priced at least 25% lower, providing a means to administer cutting-edge biologic therapy while also managing cost of care. In fact, the US health care system has saved an estimated $23.6 billion from use of biosimilars. However, the market is still in a nascent phase of development, and early cost-saving successes are not guaranteed to persist unless sustainable market conditions are established. To better understand the perspectives of stakeholders about opportunities and threats to the sustainability of the US biosimilar market, a multistakeholder roundtable discussion was convened in December of 2023 and included health care payers, providers, self-insured employers, a manufacturer, and a biosimilar research and advocacy organization. The objective of this commentary, authored by the roundtable participants, is to posit specific opportunities and threats that stakeholders should consider to better facilitate sustainable biosimilar market conditions in the United States. We highlight key points, including (1) biosimilar price volatility with large quarter-on-quarter declines for most products; (2) perverse economic incentives that encourage providers to use more expensive reference products because reimbursement dynamics make them more profitable; (3) complex rebate structures that create barriers to biosimilar access; and (4) ongoing changes to the legal and regulatory environment, including evidence requirements to gain "interchangeable" status. We conclude with an overview of potential policy solutions to address the sustainability opportunities and threats. The authors welcome the opportunity to advance this dialogue toward action and encourage additional stakeholders to join the effort. We are optimistic that, through informed decision-making and compromise, we can collectively achieve a robust and sustainable US biosimilars market that appropriately benefits all stakeholders.

10.
Sex Transm Infect ; 100(5): 271-280, 2024 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-38914474

RESUMO

OBJECTIVES: Populations who seek HIV pre-exposure prophylaxis (PrEP) are disproportionately affected by hepatitis A virus (HAV), hepatitis B virus (HBV) and human papillomavirus (HPV). We examined immunity/vaccination against these infections among participants in the Ontario PrEP cohort study (ON-PrEP). METHODS: ON-PrEP is a prospective cohort of HIV-negative PrEP users from 10 Ontario clinics. We descriptively analysed baseline immunity/vaccination against HAV (IgG reactive), HBV (hepatitis B surface antibody >10) and HPV (self-reported three-dose vaccination). We further performed multivariable logistic regression to identify characteristics associated with baseline immunity/vaccination. We used cumulative incidence functions to describe vaccine uptake among participants non-immune at baseline. RESULTS: Of 633 eligible participants, 59.1% were white, 85.8% were male and 79.6% were gay. We found baseline evidence of immunity/vaccination against HAV, HBV and HPV in 69.2%, 81.2% and 16.8% of PrEP-experienced participants and 58.9%, 70.3% and 10.4% of PrEP-naïve participants, respectively. Characteristics associated with baseline HAV immunity were greater PrEP duration (adjusted OR (aOR) 1.41/year, 95% CI 1.09 to 1.84), frequent sexually transmitted and bloodborne infection (STBBI) testing (aOR 2.38, 95% CI 1.15 to 4.92) and HBV immunity (aOR 3.53, 95% CI 2.09 to 5.98). Characteristics associated with baseline HBV immunity were living in Toronto (aOR 3.54, 95% CI 1.87 to 6.70) or Ottawa (aOR 2.76, 95% CI 1.41 to 5.40), self-identifying as racialised (aOR 2.23, 95% CI 1.19 to 4.18), greater PrEP duration (aOR 1.39/year, 95% CI 1.02 to 1.90) and HAV immunity (aOR 3.75, 95% CI 2.19 to 6.41). Characteristics associated with baseline HPV vaccination were being aged ≤26 years (aOR 9.28, 95% CI 2.11 to 40.77), annual income between CAD$60 000 and CAD$119 000 (aOR 3.42, 95% CI 1.40 to 8.34), frequent STBBI testing (aOR 7.00, 95% CI 1.38 to 35.46) and HAV immunity (aOR 6.96, 95% CI 2.00 to 24.25). Among those non-immune at baseline, overall cumulative probability of immunity/vaccination was 0.70, 0.60 and 0.53 among PrEP-experienced participants and 0.93, 0.80 and 0.70 among PrEP-naïve participants for HAV, HBV and HPV, respectively. CONCLUSIONS: Baseline immunity to HAV/HBV was common, and a sizeable proportion of non-immune participants were vaccinated during follow-up. However, HPV vaccination was uncommon. Continued efforts should be made to remove barriers to HPV vaccination such as cost, inclusion in clinical guidelines and provider recommendation.


Assuntos
Infecções por HIV , Hepatite A , Hepatite B , Infecções por Papillomavirus , Vacinas contra Papillomavirus , Profilaxia Pré-Exposição , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Hepatite A/prevenção & controle , Hepatite A/imunologia , Vacinas contra Hepatite A/administração & dosagem , Vacinas contra Hepatite A/imunologia , Hepatite B/prevenção & controle , Hepatite B/imunologia , Vacinas contra Hepatite B/administração & dosagem , Vacinas contra Hepatite B/imunologia , Infecções por HIV/prevenção & controle , Ontário , Infecções por Papillomavirus/prevenção & controle , Vacinas contra Papillomavirus/administração & dosagem , Vacinas contra Papillomavirus/imunologia , Profilaxia Pré-Exposição/estatística & dados numéricos , Estudos Prospectivos , Vacinação/estatística & dados numéricos
11.
J Manag Care Spec Pharm ; 30(6): 581-587, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38824630

RESUMO

BACKGROUND: Larotrectinib is approved for patients with advanced NTRK gene fusion-positive solid tumors. Prior studies demonstrated promising results with larotrectinib compared with other systemic therapy. However, comparisons to checkpoint inhibitors, such as nivolumab or pembrolizumab, have not been done. OBJECTIVE: To estimate and compare expected life-years (LYs) and quality-adjusted LYs (QALYs) for patients with nonsmall cell lung cancer (NSCLC) eligible for larotrectinib vs patients with unknown NTRK gene fusion status on nivolumab or pembrolizumab. We also assessed patients with metastatic differentiated thyroid cancer (DTC), as pembrolizumab may be considered in certain circumstances. METHODS: We developed partitioned survival models to project long-term comparative effectiveness of larotrectinib vs nivolumab or pembrolizumab. Larotrectinib survival data were derived from an updated July 2021 analysis of 21 adult patients (≥18 years of age) with metastatic NTRK gene fusion-positive NSCLC and 21 with DTC. Survival inputs for nivolumab and pembrolizumab were obtained from published articles. Progression-free and overall survival were estimated using survival distributions (Exponential, Weibull, Log-logistic, and Log-normal). Exponential fits were chosen based on goodness-of-fit and clinical plausibility. RESULTS: In NSCLC, larotrectinib resulted in gains of 5.87 and 5.91 LYs compared to nivolumab and pembrolizumab, respectively, which translated to gains of 3.53 and 3.56 QALYs. In DTC, larotrectinib resulted in a gain of 5.23 LYs and 4.24 QALYs compared to pembrolizumab. CONCLUSIONS: In metastatic NSCLC and DTC, larotrectinib may produce substantial life expectancy and QALY gains compared to immune checkpoint inhibitors. Additional data with longer follow-up will further inform this comparison.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Inibidores de Checkpoint Imunológico , Neoplasias Pulmonares , Nivolumabe , Pirazóis , Pirimidinas , Anos de Vida Ajustados por Qualidade de Vida , Neoplasias da Glândula Tireoide , Humanos , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/genética , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patologia , Inibidores de Checkpoint Imunológico/uso terapêutico , Neoplasias da Glândula Tireoide/tratamento farmacológico , Neoplasias da Glândula Tireoide/genética , Neoplasias da Glândula Tireoide/patologia , Nivolumabe/uso terapêutico , Pirimidinas/uso terapêutico , Pirazóis/uso terapêutico , Masculino , Feminino , Anticorpos Monoclonais Humanizados/uso terapêutico , Pessoa de Meia-Idade , Adulto , Idoso , Resultado do Tratamento
12.
Mol Cell ; 84(14): 2785-2796.e4, 2024 Jul 25.
Artigo em Inglês | MEDLINE | ID: mdl-38936361

RESUMO

The bacterial world offers diverse strains for understanding medical and environmental processes and for engineering synthetic biological chassis. However, genetically manipulating these strains has faced a long-standing bottleneck: how to efficiently transform DNA. Here, we report imitating methylation patterns rapidly in TXTL (IMPRINT), a generalized, rapid, and scalable approach based on cell-free transcription-translation (TXTL) to overcome DNA restriction, a prominent barrier to transformation. IMPRINT utilizes TXTL to express DNA methyltransferases from a bacterium's restriction-modification systems. The expressed methyltransferases then methylate DNA in vitro to match the bacterium's DNA methylation pattern, circumventing restriction and enhancing transformation. With IMPRINT, we efficiently multiplex methylation by diverse DNA methyltransferases and enhance plasmid transformation in gram-negative and gram-positive bacteria. We also develop a high-throughput pipeline that identifies the most consequential methyltransferases, and we apply IMPRINT to screen a ribosome-binding site library in a hard-to-transform Bifidobacterium. Overall, IMPRINT can enhance DNA transformation, enabling the use of sophisticated genetic manipulation tools across the bacterial world.


Assuntos
Sistema Livre de Células , Metilação de DNA , Biossíntese de Proteínas , Transcrição Gênica , Escherichia coli/genética , Escherichia coli/metabolismo , Transformação Bacteriana , DNA Bacteriano/genética , DNA Bacteriano/metabolismo , Plasmídeos/genética , Plasmídeos/metabolismo , Metilases de Modificação do DNA/metabolismo , Metilases de Modificação do DNA/genética , Proteínas de Bactérias/genética , Proteínas de Bactérias/metabolismo
13.
J Manag Care Spec Pharm ; 30(8): 762-772, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38905356

RESUMO

BACKGROUND: The Centers for Medicare and Medicaid Services (CMS) are currently negotiating prices with pharmaceutical manufacturers for the first 10 Part D drugs selected for Medicare drug price negotiation. Non-publicly available data, including the net prices of selected drugs and their therapeutic alternatives, will play a central role in the determination of the maximum fair prices (MFPs). OBJECTIVE: To estimate price benchmarks involved in the derivation of the starting point of the CMS initial price offer for the 10 drugs selected for Medicare price negotiation. METHODS: For the 10 drugs selected for negotiation, we reported (1) the list price, (2) the net price after manufacturer discounts, (3) the maximum negotiated price based on the minimum statutory discount, and (4) the ceiling of the MFP, estimated as the lowest of the latter 2. We also estimated net prices for therapeutic alternatives to the selected drugs. Net prices were estimated using peer-reviewed methodology that isolates commercial discounts negotiated between payers and manufacturers from mandatory discounts under government programs. All price benchmarks were estimated at the product level, for 30-day equivalent dosing, using 2021 data. RESULTS: 6 products (apixaban, rivaroxaban, empagliflozin, sacubitril/valsartan, etanercept, and insulin aspart) had therapeutic alternatives with lower net prices, which will be integrated with clinical benefit data in the derivation of initial price offers. The other 4 products (ustekinumab, ibrutinib, sitagliptin, and dapagliflozin) had therapeutic alternatives with higher net prices than the drugs selected for negotiation. For ibrutinib and ustekinumab, prices based on the minimum discounts were considerably lower than the estimated net prices and will likely set the starting point of the initial price offer. For dapagliflozin and sitagliptin, the starting point of the initial price offer will likely resemble their existing net prices. CONCLUSIONS: Our analyses identify different negotiation scenarios for the first 10 drugs selected for Medicare price negotiation, based on key elements involved in the derivation of the initial price offer. Our analyses can help improve transparency in the negotiation process, because the CMS is not required to reveal the information used in the derivation of price offers.


Assuntos
Benchmarking , Custos de Medicamentos , Medicare Part D , Negociação , Estados Unidos , Humanos , Medicare Part D/economia , Centers for Medicare and Medicaid Services, U.S. , Indústria Farmacêutica/economia
14.
Nat Commun ; 15(1): 4081, 2024 May 14.
Artigo em Inglês | MEDLINE | ID: mdl-38744844

RESUMO

Combination of waning immunity and lower effectiveness against new SARS-CoV-2 variants of approved COVID-19 vaccines necessitates new vaccines. We evaluated two doses, 28 days apart, of ARCT-154, a self-amplifying mRNA COVID-19 vaccine, compared with saline placebo in an integrated phase 1/2/3a/3b controlled, observer-blind trial in Vietnamese adults (ClinicalTrial.gov identifier: NCT05012943). Primary safety and reactogenicity outcomes were unsolicited adverse events (AE) 28 days after each dose, solicited local and systemic AE 7 days after each dose, and serious AEs throughout the study. Primary immunogenicity outcome was the immune response as neutralizing antibodies 28 days after the second dose. Efficacy against COVID-19 was assessed as primary and secondary outcomes in phase 3b. ARCT-154 was well tolerated with generally mild-moderate transient AEs. Four weeks after the second dose 94.1% (95% CI: 92.1-95.8) of vaccinees seroconverted for neutralizing antibodies, with a geometric mean-fold rise from baseline of 14.5 (95% CI: 13.6-15.5). Of 640 cases of confirmed COVID-19 eligible for efficacy analysis most were due to the Delta (B.1.617.2) variant. Efficacy of ARCT-154 was 56.6% (95% CI: 48.7- 63.3) against any COVID-19, and 95.3% (80.5-98.9) against severe COVID-19. ARCT-154 vaccination is well tolerated, immunogenic and efficacious, particularly against severe COVID-19 disease.


Assuntos
Anticorpos Neutralizantes , Anticorpos Antivirais , Vacinas contra COVID-19 , COVID-19 , SARS-CoV-2 , Humanos , Vacinas contra COVID-19/imunologia , Vacinas contra COVID-19/efeitos adversos , Vacinas contra COVID-19/administração & dosagem , COVID-19/prevenção & controle , COVID-19/imunologia , Feminino , Masculino , SARS-CoV-2/imunologia , SARS-CoV-2/genética , Adulto , Anticorpos Neutralizantes/imunologia , Anticorpos Neutralizantes/sangue , Anticorpos Antivirais/imunologia , Pessoa de Meia-Idade , Imunogenicidade da Vacina , Adulto Jovem , Eficácia de Vacinas , Vietnã , Adolescente , Vacinas de mRNA , Vacinas Sintéticas/imunologia , Vacinas Sintéticas/efeitos adversos , Vacinas Sintéticas/administração & dosagem
15.
ACS Omega ; 9(17): 19395-19400, 2024 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-38708232

RESUMO

Electrochemical processing of spent nuclear fuel in molten chloride salts results in radioactive salt waste. Chlorine removal from the salt has been identified as an effective and efficient first step in the management of high-level waste. In this work, a simple salt was dechlorinated with a phosphoric acid phosphate precursor, resulting in a glassy dechlorinated product. The dechlorination efficacy was evaluated in air and argon environments. This work serves as an initial step to advance the Technological Readiness Level of H3PO4-based dechlorination step toward implementation of iron phosphate waste forms to immobilize electrochemical fuel reprocessing salt waste streams.

16.
ACS Nano ; 18(14): 9929-9941, 2024 Apr 09.
Artigo em Inglês | MEDLINE | ID: mdl-38533847

RESUMO

The use of trivalent erbium (Er3+), typically embedded as an atomic defect in the solid-state, has widespread adoption as a dopant in telecommunication devices and shows promise as a spin-based quantum memory for quantum communication. In particular, its natural telecom C-band optical transition and spin-photon interface make it an ideal candidate for integration into existing optical fiber networks without the need for quantum frequency conversion. However, successful scaling requires a host material with few intrinsic nuclear spins, compatibility with semiconductor foundry processes, and straightforward integration with silicon photonics. Here, we present Er-doped titanium dioxide (TiO2) thin film growth on silicon substrates using a foundry-scalable atomic layer deposition process with a wide range of doping controls over the Er concentration. Even though the as-grown films are amorphous after oxygen annealing, they exhibit relatively large crystalline grains, and the embedded Er ions exhibit the characteristic optical emission spectrum from anatase TiO2. Critically, this growth and annealing process maintains the low surface roughness required for nanophotonic integration. Finally, we interface Er ensembles with high quality factor Si nanophotonic cavities via evanescent coupling and demonstrate a large Purcell enhancement (≈300) of their optical lifetime. Our findings demonstrate a low-temperature, nondestructive, and substrate-independent process for integrating Er-doped materials with silicon photonics. At high doping densities this platform can enable integrated photonic components such as on-chip amplifiers and lasers, while dilute concentrations can realize single ion quantum memories.

18.
Anat Sci Educ ; 2024 Mar 22.
Artigo em Inglês | MEDLINE | ID: mdl-38516733

RESUMO

Anatomy education is essential for developing healthcare professionals, and discussion continues about factors that impact and improve the anatomy learning environment. Neglected in this discussion is a consideration of the diverse religious assumptions and beliefs that college students bring to anatomy learning. Surveys of religion among United States college students indicate that many identify as religious and Christian. This viewpoint commentary summarizes main elements of Christian theology and anthropology, discusses the holistic and positive view of the body presented in Christian scripture, and outlines how these Christian beliefs inform and impact student preparation for anatomy education and human body dissection, address ethical issues in body donation, and support professionalism for future career practice.

19.
Biol Psychiatry ; 95(6): 523-535, 2024 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-38383091

RESUMO

Theta burst stimulation (TBS) is a noninvasive brain stimulation technique that can be used to modulate neural networks underlying psychiatric and neurological disorders. TBS can be delivered intermittently or continuously. The conventional intermittent TBS protocol is approved by the U.S. Food and Drug Administration to treat otherwise treatment-resistant depression, but the 6-week duration limits the applicability of this therapy. Accelerated TBS protocols present an opportunity to deliver higher pulse doses in shorter periods of time, thus resulting in faster and potentially more clinically effective treatment. However, the acceleration of TBS delivery raises questions regarding the relative safety, efficacy, and durability compared with conventional TBS protocols. In this review paper, we present the data from accelerated TBS trials to date that support the safety and effectiveness of accelerated protocols while acknowledging the need for more durability data. We discuss the stimulation parameters that seem to be important for the efficacy of accelerated TBS protocols and possible avenues for further optimization.


Assuntos
Transtorno Depressivo Resistente a Tratamento , Estimulação Magnética Transcraniana , Humanos , Estimulação Magnética Transcraniana/efeitos adversos , Estimulação Magnética Transcraniana/métodos , Resultado do Tratamento , Encéfalo , Transtorno Depressivo Resistente a Tratamento/terapia , Ritmo Teta/fisiologia
20.
Orphanet J Rare Dis ; 19(1): 47, 2024 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-38326894

RESUMO

Health technology assessment (HTA) decisions for pharmaceuticals are complex and evolving. New rare disease treatments are often approved more quickly through accelerated approval schemes, creating more uncertainties about clinical evidence and budget impact at the time of market entry. The use of real-world evidence (RWE), including early coverage with evidence development, has been suggested as a means to support HTA decisions for rare disease treatments. However, the collection and use of RWE poses substantial challenges. These challenges are compounded when considered in the context of treatments for rare diseases. In this paper, we describe the methodological challenges to developing and using prospective and retrospective RWE for HTA decisions, for rare diseases in particular. We focus attention on key elements of study design and analyses, including patient selection and recruitment, appropriate adjustment for confounding and other sources of bias, outcome selection, and data quality monitoring. We conclude by offering suggestions to help address some of the most vexing challenges. The role of RWE in coverage and pricing determination will grow. It is, therefore, necessary for researchers, manufacturers, HTA agencies, and payers to ensure that rigorous and appropriate scientific principles are followed when using RWE as part of decision-making.


Assuntos
Doenças Raras , Avaliação da Tecnologia Biomédica , Humanos , Estudos Prospectivos , Estudos Retrospectivos
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