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1.
Clin Microbiol Rev ; 37(2): e0000423, 2024 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-38551323

RESUMO

SUMMARYAlthough Scedosporium species and Lomentospora prolificans are uncommon causes of invasive fungal diseases (IFDs), these infections are associated with high mortality and are costly to treat with a limited armamentarium of antifungal drugs. In light of recent advances, including in the area of new antifungals, the present review provides a timely and updated overview of these IFDs, with a focus on the taxonomy, clinical epidemiology, pathogenesis and host immune response, disease manifestations, diagnosis, antifungal susceptibility, and treatment. An expansion of hosts at risk for these difficult-to-treat infections has emerged over the last two decades given the increased use of, and broader population treated with, immunomodulatory and targeted molecular agents as well as wider adoption of antifungal prophylaxis. Clinical presentations differ not only between genera but also across the different Scedosporium species. L. prolificans is intrinsically resistant to most currently available antifungal agents, and the prognosis of immunocompromised patients with lomentosporiosis is poor. Development of, and improved access to, diagnostic modalities for early detection of these rare mold infections is paramount for timely targeted antifungal therapy and surgery if indicated. New antifungal agents (e.g., olorofim, fosmanogepix) with novel mechanisms of action and less cross-resistance to existing classes, availability of formulations for oral administration, and fewer drug-drug interactions are now in late-stage clinical trials, and soon, could extend options to treat scedosporiosis/lomentosporiosis. Much work remains to increase our understanding of these infections, especially in the pediatric setting. Knowledge gaps for future research are highlighted in the review.


Assuntos
Antifúngicos , Scedosporium , Humanos , Antifúngicos/uso terapêutico , Scedosporium/efeitos dos fármacos , Scedosporium/classificação , Farmacorresistência Fúngica , Micoses/tratamento farmacológico , Micoses/diagnóstico , Micoses/microbiologia , Infecções Fúngicas Invasivas/tratamento farmacológico , Infecções Fúngicas Invasivas/diagnóstico , Ascomicetos/classificação , Ascomicetos/efeitos dos fármacos
2.
Curr Opin Infect Dis ; 37(6): 443-450, 2024 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-39259717

RESUMO

PURPOSE OF REVIEW: Given the high mortality and morbidity associated with invasive fungal diseases (IFDs), the use of combination antifungal therapies is often considered despite the dearth of data. This review aims to summarize the current state of literature of combination antifungal therapies, discussing the potential roles of newer antifungal combinations and key considerations for their clinical use. RECENT FINDINGS: In infections other than cryptococcal meningitis or in the setting of empirical treatment for suspected azole-resistant Aspergillus infections, the utility of the combination antifungal approaches remains controversial given the paucity of well designed randomized controlled trials. Data on potential combined antifungal treatments have been primarily limited to in-vitro studies, animal models, case reports and/or observational studies. With availability of novel antifungal agents (e.g. ibrexafungerp, fosmanogepix), combination therapy to treat mould infections should be re-visited. A phase 2 clinical trial of ibrexafungerp combined with voriconazole to treat invasive pulmonary aspergillosis is on-going. SUMMARY: There is a need to investigate the use of combination antifungal agents. This includes delineating the indication of these combined antifungal therapies and determining how to use them most appropriately in the clinical setting.


Assuntos
Antifúngicos , Quimioterapia Combinada , Infecções Fúngicas Invasivas , Antifúngicos/uso terapêutico , Antifúngicos/administração & dosagem , Humanos , Infecções Fúngicas Invasivas/tratamento farmacológico , Animais
3.
J Antimicrob Chemother ; 79(1): 46-54, 2024 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-37944018

RESUMO

BACKGROUND: Little is known about the short- and long-term healthcare costs of invasive Scedosporium/Lomentospora prolificans infections, particularly in patient groups without haematological malignancy. This study investigated excess index hospitalization costs and cumulative costs of these infections. The predictors of excess cost and length of stay (LOS) of index hospitalization were determined. These estimates serve as valuable inputs for cost-effectiveness models of novel antifungal agents. METHODS: A retrospective case-control study was conducted at six Australian hospitals. Cases of proven/probable invasive Scedosporium/L. prolificans infections between 2011 and 2021 (n = 34) were matched with controls (n = 66) by predefined criteria. Cost data were retrieved from activity-based costing systems and analysis was performed from the Australian public hospital perspective. All costs were presented in 2022 Australian dollars (AUD). Median regression analysis was used to adjust excess costs of index hospitalization whereas cumulative costs up to 1.5 years follow-up were estimated using interval-partitioned survival probabilities. RESULTS: Invasive Scedosporium/L. prolificans infections were independently associated with an adjusted median excess cost of AUD36 422 (P = 0.003) and LOS of 16.27 days (P < 0.001) during index hospitalization. Inpatient stay was the major cost driver (42.7%), followed by pharmacy cost, of which antifungal agents comprised 23.8% of the total cost. Allogeneic haematopoietic stem cell transplant increased the excess cost (P = 0.013) and prolonged LOS (P < 0.001) whereas inpatient death within ≤28 days reduced both cost (P = 0.001) and LOS (P < 0.001). The median cumulative cost increased substantially to AUD203 292 over 1.5 years in cases with Scedosporium/L. prolificans infections. CONCLUSIONS: The economic burden associated with invasive Scedosporium/L. prolificans infections is substantial.


Assuntos
Antifúngicos , Scedosporium , Humanos , Antifúngicos/uso terapêutico , Estudos de Casos e Controles , Estudos Retrospectivos , Austrália/epidemiologia
4.
J Antimicrob Chemother ; 73(3): 748-756, 2018 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-29211913

RESUMO

Objectives: This study describes therapeutic drug monitoring (TDM) of posaconazole suspension and modified release (MR) tablets in lung transplant (LTx) recipients and evaluates factors that may affect posaconazole trough plasma concentration (Cmin). Methods: A single-centre, retrospective study evaluating posaconazole Cmin in LTx recipients receiving posaconazole suspension or MR tablets between January 2014 and December 2016. Results: Forty-seven LTx patients received posaconazole suspension, and 78 received the MR tablet formulation; a total of 421 and 617 Cmin measurements were made, respectively. Posaconazole was concurrently administered with proton pump inhibitor in ≥ 90% of patients. The median (IQR) of initial posaconazole Cmin following 300 mg daily of posaconazole tablet was significantly higher than that of 800 mg daily of posaconazole suspension [1.65 (0.97-2.13) mg/L versus 0.81 (0.48-1.15) mg/L, P < 0.01]. Variability in posaconazole Cmin was apparent regardless of the formulations prescribed and dose adjustments were routinely undertaken to maintain therapeutic Cmin. A clear dose-response relationship was observed in patients receiving posaconazole MR tablets. Non-specific adverse events (fatigue, tremor, lethargy, sweating, nausea/vomiting and weight loss) were reported in 3/78 (4%) patients receiving posaconazole MR tablets. Posaconazole Cmin in these three patients was determined to be 9.6, 6.2 and 2.3 mg/L. Conclusions: The current study has provided clinically important insights into the TDM of posaconazole in LTx recipients. Routine TDM should be undertaken in LTx recipients receiving posaconazole suspension and/or MR tablets.


Assuntos
Antifúngicos/sangue , Monitoramento de Medicamentos , Transplante de Pulmão , Transplantados , Triazóis/sangue , Administração Oral , Adulto , Idoso , Antifúngicos/efeitos adversos , Relação Dose-Resposta a Droga , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Suspensões , Comprimidos , Triazóis/efeitos adversos
5.
Eur J Clin Microbiol Infect Dis ; 37(9): 1777-1784, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29959610

RESUMO

Micafungin was reported to be non-inferior to liposomal amphotericin B (LAmB) in treating patients with candidaemia and invasive candidiasis (IC). The current study aimed to evaluate the economic impact of using micafungin versus LAmB for treatment of candidaemia and IC in Turkey. A decision analytic model, which depicted economic consequences upon administration of micafungin or LAmB for treating patients with candidaemia and IC in the Turkish hospitals, was constructed. Patients were switched to an alternative antifungal agent if initial treatment failed due to mycological persistence. All patients were followed up until treatment success or death. Outcome probabilities were obtained from published literature and cost inputs were derived from the latest Turkish resources. Expert panels were used to estimate data that were not available in the literature. Cost per patient treated for each intervention was then calculated. Sensitivity analyses including Monte Carlo simulation were performed. For treatment of candidaemia and IC, micafungin (€4809) was associated with higher total cost than LAmB (€4467), with an additional cost of €341 per treated patient. Cost of initial antifungal treatment was the major cost driver for both comparators. The model outcome was robust over a wide variation in input variables except for drug acquisition cost and duration of initial antifungal treatment with micafungin or LAmB. LAmB is cost-saving relative to micafungin for the treatment of candidaemia and IC from the Turkish hospital perspective, with variation in drug acquisition cost of the critical factor affecting the model outcome.


Assuntos
Anfotericina B/economia , Antifúngicos/economia , Candidemia/tratamento farmacológico , Candidíase Invasiva/tratamento farmacológico , Micafungina/economia , Anfotericina B/administração & dosagem , Anfotericina B/uso terapêutico , Antifúngicos/administração & dosagem , Antifúngicos/uso terapêutico , Candidemia/economia , Candidemia/epidemiologia , Candidemia/microbiologia , Candidíase Invasiva/economia , Candidíase Invasiva/epidemiologia , Candidíase Invasiva/microbiologia , Análise Custo-Benefício , Técnicas de Apoio para a Decisão , Humanos , Micafungina/administração & dosagem , Micafungina/uso terapêutico , Resultado do Tratamento , Turquia/epidemiologia
6.
J Antimicrob Chemother ; 72(7): 2089-2092, 2017 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-28369489

RESUMO

Objectives: This study describes the clinical outcomes and therapeutic drug monitoring (TDM) following posaconazole suspension pre-emptive therapy in lung transplant (LTx) recipients. Methods: This was a single-centre, retrospective cohort study evaluating posaconazole suspension pre-emptive therapy in LTx recipients between January 2009 and December 2015. Results: Forty-two LTx recipients were prescribed posaconazole suspension pre-emptively. Aspergillus fumigatus was the most commonly isolated fungal organism. Of the patients receiving posaconazole suspension as the initial antifungal post-LTx, 93% had eradication of colonization at 6 months after commencing therapy. In contrast, only 61% had eradication of fungal colonization when posaconazole suspension was administered following initial therapy with voriconazole. Posaconazole suspension appeared to be well tolerated, although one case was curtailed following concern about abnormal liver function and another due to nausea/vomiting. TDM was performed in 37 patients. The initial median (IQR) trough plasma concentration ( C min ) following 400 mg twice-daily posaconazole suspension was 0.78 (0.46-1.19) mg/L. Doses beyond 800 mg daily did not appear to result in a higher median C min. Conclusions: Early initiation of posaconazole suspension pre-emptive therapy in LTx recipients appears to be well tolerated and may potentially afford favourable clinical outcomes.


Assuntos
Antifúngicos/sangue , Aspergilose/tratamento farmacológico , Aspergillus fumigatus/efeitos dos fármacos , Transplante de Pulmão , Transplantados , Triazóis/administração & dosagem , Triazóis/sangue , Adulto , Antifúngicos/administração & dosagem , Antifúngicos/efeitos adversos , Antifúngicos/uso terapêutico , Aspergilose/microbiologia , Aspergillus fumigatus/isolamento & purificação , Estudos de Coortes , Monitoramento de Medicamentos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Suspensões , Resultado do Tratamento , Triazóis/efeitos adversos , Triazóis/uso terapêutico , Voriconazol/uso terapêutico
7.
BMC Cancer ; 17(1): 903, 2017 12 28.
Artigo em Inglês | MEDLINE | ID: mdl-29282008

RESUMO

BACKGROUND: Globally, cancer is one of the leading causes of mortality. High treatment cost, partly owing to higher prices of anti-cancer drugs, presents a significant burden on patients and healthcare systems. The aim of the present study was to survey and compare retail prices of anti-cancer drugs between high, middle and low income countries in the South-East Asia, Western Pacific and Eastern Mediterranean regions. METHODS: Cross-sectional survey design was used for the present study. Pricing data from ten counties including one from South-East Asia, two from Western Pacific and seven from Eastern Mediterranean regions were used in this study. Purchasing power parity (PPP)-adjusted mean unit prices for 26 anti-cancer drug presentations (similar pharmaceutical form, strength, and pack size) were used to compare prices of anti-cancer drugs across three regions. A structured form was used to extract relevant data. Data were entered and analysed using Microsoft Excel®. RESULTS: Overall, Taiwan had the lowest mean unit prices while Oman had the highest prices. Six (23.1%) and nine (34.6%) drug presentations had a mean unit price below US$100 and between US$100 and US$500 respectively. Eight drug presentations (30.7%) had a mean unit price of more than US$1000 including cabazitaxel with a mean unit price of $17,304.9/vial. There was a direct relationship between income category of the countries and their mean unit price; low-income countries had lower mean unit prices. The average PPP-adjusted unit prices for countries based on their income level were as follows: low middle-income countries (LMICs): US$814.07; high middle income countries (HMICs): US$1150.63; and high income countries (HICs): US$1148.19. CONCLUSIONS: There is a great variation in pricing of anticancer drugs in selected countires and within their respective regions. These findings will allow policy makers to compare prices of anti-cancer agents with neighbouring countries and develop policies to ensure accessibility and affordability of anti-cancer drugs.


Assuntos
Antineoplásicos/economia , Custos de Medicamentos/normas , Neoplasias/tratamento farmacológico , Neoplasias/economia , Antineoplásicos/uso terapêutico , Sudeste Asiático/epidemiologia , Estudos Transversais , Países em Desenvolvimento , Humanos , Região do Mediterrâneo/epidemiologia , Neoplasias/epidemiologia , Ilhas do Pacífico/epidemiologia
8.
J Pharm Pharm Sci ; 20(1): 397-406, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29145934

RESUMO

PURPOSE: To systematically review studies on cost-effectiveness of implementing Antimicrobial stewardship programmes (ASP) in the hospital setting. METHODS: A systematic literature search was performed using electronic databases, such as EMBASE, PubMed/Medline, CINAHL, NHS and CEA Registry from 2000 until 2017. The quality of each included study was assessed using Joanna Briggs Institute Critical Appraisal Checklist for Economic Evaluations and Consolidated Health Economic Evaluation Reporting Standards Statement checklist. RESULTS: Of the 313 papers retrieved, five papers were included in this review after assessment for eligibility. The majority of the studies were cost-effectiveness studies, comparing ASP to standard care. Four included economic studies were conducted from the provider (hospital) perspective while the other study was from payer (National Health System) perspective. The cost included for economic analysis were as following: personnel costs, warded cost, medical costs, procedure costs and other costs. CONCLUSIONS: All studies were generally well-conducted with relatively good quality of reporting. Implementing ASP in the hospital setting may be cost-effective. However, comprehensive cost-effectiveness data for ASP remain relatively scant, underlining the need for more prospective clinical and epidemiological studies to incorporate robust economic analyses into clinical decisions. This article is open to POST-PUBLICATION REVIEW. Registered readers (see "For Readers") may comment by clicking on ABSTRACT on the issue's contents page.


Assuntos
Antibacterianos/uso terapêutico , Gestão de Antimicrobianos/economia , Análise Custo-Benefício , Resistência Microbiana a Medicamentos , Economia Hospitalar , Antibacterianos/economia , Antibacterianos/farmacologia , Tomada de Decisão Clínica/métodos , Administração Hospitalar/métodos , Humanos , Controle de Infecções/economia , Controle de Infecções/métodos , Resultado do Tratamento
9.
Mycoses ; 60(11): 714-722, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28699297

RESUMO

Anidulafungin has been shown to be non-inferior to, and possibly more efficacious, than fluconazole in treating patients with invasive candidiasis (IC). This study aimed to determine the cost-effectiveness of anidulafungin vs fluconazole for treatment of IC in the Turkish setting. A decision analytic model was constructed to depict downstream economic consequences of using anidulafungin or fluconazole for treatment of IC in the Turkish hospitals. Transition probabilities (ie treatment success, observed or indeterminate treatment failures) were obtained from a published randomised clinical trial. Cost inputs were from the latest Turkish resources. Data not available in the literature were estimated by expert panels. Sensitivity analyses were performed to assess the robustness of the model outcome. While anidulafungin [TL 17 171 (USD 4589)] incurred a higher total cost than fluconazole [TL 8233 (USD 2200) per treated patient, treatment with anidulafungin was estimated to save an additional 0.58 life-years, with an incremental cost-effectiveness ratio of TL 15 410 (USD 4118) per life-years saved. Drug acquisition cost and hospitalisation were the main cost drivers for anidulafungin and fluconazole arms respectively. The model findings were robust over a wide range of input variables except for anidulafungin drug cost. Anidulafungin appears to be a cost-effective therapy in treating IC from the Turkish hospital perspective.


Assuntos
Antifúngicos/uso terapêutico , Candidíase Invasiva/tratamento farmacológico , Equinocandinas/uso terapêutico , Fluconazol/uso terapêutico , Anidulafungina , Antifúngicos/economia , Candidíase Invasiva/microbiologia , Análise Custo-Benefício , Técnicas de Apoio para a Decisão , Método Duplo-Cego , Equinocandinas/economia , Fluconazol/economia , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Falha de Tratamento , Resultado do Tratamento , Turquia
10.
Antimicrob Agents Chemother ; 60(11): 6896-6898, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27550348

RESUMO

Twenty participants undergoing elective cataract surgery received 1% voriconazole eye drops (1 drop per eye) either 20, 40, 60, or 80 min before surgery. Median voriconazole concentrations of 1.9 to 3.2 mg/liter in aqueous humor samples were attained over the first 80 min, which were higher than in vitro MIC90 values for typical fungi that cause keratitis.


Assuntos
Humor Aquoso/efeitos dos fármacos , Soluções Oftálmicas/farmacocinética , Voriconazol/farmacocinética , Adulto , Idoso , Idoso de 80 Anos ou mais , Antifúngicos/farmacocinética , Extração de Catarata , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
11.
BMC Complement Altern Med ; 16: 16, 2016 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-26767971

RESUMO

BACKGROUND: The treatment of low back pain is very challenging due to the recurrent nature of the problem. It is believed that traditional Malay massage helps to relieve such back pain but there is a lack of scientific evidence to support both the practice of traditional Malay massage and the mechanism by which it exerts its effect. The aim of this study is to investigate the immediate effect of traditional Malay massage on the pain scale, substance P, inflammatory mediators, and functional outcomes among low back pain patients. METHODS: A non-blinded, randomised controlled trial will be conducted. A total of sixty-six patients who fulfil the inclusion criteria will be recruited. The participants will be randomly allocated into intervention (traditional Malay massage) and control (relaxation position) groups. Blood and saliva samples will be collected before and immediately after intervention. All collected samples will be analysed. The primary outcomes are the changes in the level of substance P in both saliva and blood samples between both groups. The secondary outcomes include the levels of inflammatory mediators [i.e. TNF-α, IL-1ß, IL-8, monocyte chemotactic protein-1, IL-6 and IL-10, and the soluble form of the intercellular adhesion molecule], the pain intensity as measured by a visual analogous scale and functional outcomes using the Roland-Morris Disability Questionnaire. DISCUSSION: Massage is a type of physical therapy that has been proven to be potentially capable of reducing unpleasant pain sensations by a complex sensory response and chemical mediators such as substance P and various inflammatory mediators. Previous studies conducted using Thai, Swedish, or other forms of massage therapies, have showed inconsistent findings on substance P levels pre and post the interventions. Each massage genre varies in terms of massage and joint mobilization points, as well as the lumbar spinous process. Traditional Malay massage, known locally as "Urut Melayu", involves soft-tissue manipulation of the whole body applied using the hands and fingers. This massage technique combines both deep muscular tissue massage and spiritual rituals. This trial is expected to give rise to new knowledge underlying the mechanisms for pain and inflammation relief that are activated by traditional Malay massage. TRIAL REGISTRATION: Australian New Zealand Clinical Trials ACTRN12615000537550 .


Assuntos
Protocolos Clínicos , Mediadores da Inflamação/metabolismo , Dor Lombar/terapia , Massagem , Substância P/metabolismo , Humanos , Massagem/métodos , Avaliação de Resultados em Cuidados de Saúde , Medição da Dor , Seleção de Pacientes
12.
Ageing Res Rev ; 101: 102506, 2024 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-39306247

RESUMO

This systematic review and meta-analysis appraised previous findings to uncover potential faecal intestinal permeability and intestinal inflammatory markers in older adults. A comprehensive literature search led to the identification of ten eligible studies with findings of potential faecal intestinal permeability (zonulin and alpha-1-antitrypsin) and intestinal inflammatory markers [calprotectin, lactoferrin and neutrophil gelatinase-associated lipocalin (NGAL)]. Most of the cases (n > 2) [Parkinson's disease (PD) and Alzheimer's disease (AD)] exhibited higher faecal alpha-1-antitrypsin, zonulin and calprotectin levels. The present meta-analysis confirmed significantly higher faecal alpha-1-antitrypsin in older persons with PD compared to non-PD [MD = 22.92 mg/dL; 95 % CI = 14.02-31.81, p < 0.00001; I2 = 0 % (p = 0.73)]. There was, however, no significant difference in faecal zonulin between PD and non-PD individuals [MD = 26.88 ng/mL; 95 % CI = -29.26-83.01, p = 0.35; I2 = 94 % (p < 0.0001)]. Meanwhile, faecal calprotectin was higher in older adults with GI symptoms, multiple system atrophy (MSA) or PD than the healthy controls [MD = 9.51 µg/g; 95 % CI = 0.07-18.95, p = 0.05; I2 = 84 % (p < 0.00001)]. Altogether, faecal calprotectin appears to be a potential intestinal inflammatory marker whereas previous findings on faecal alpha-1-antitrypsin as an intestinal permeability marker remain limited and require further validation.

13.
Arch Gerontol Geriatr ; 128: 105640, 2024 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-39305569

RESUMO

This systematic review appraised previous findings of non-pharmacological interventions on gut microbiota and/ or intestinal permeability in older adults. A literature search was performed using PubMed, Scopus, ScienceDirect and the Cochrane Library. Relevant studies were shortlisted based on the inclusion and exclusion criteria, and evaluated for risks of bias using the "Cochrane Collaboration's Risk of Bias 2" and the "NIH Quality Assessment Tool for Before-After (Pre-Post) Studies with No Control Group". The primary outcomes were the effects of non-pharmacological interventions on gut microbiota diversity and composition, and intestinal permeability in older adults. Out of 85,114 studies, 38 were shortlisted. Generally, the non-pharmacological interventions were beneficial against dysbiosis and the leaky gut in older adults. Considering specific interventions with two or more studies that reported consistent outcomes, a pattern was observed amongst the Mediterranean diet (MD), polyphenol-rich (PR) diet and supplements (i.e., probiotics, prebiotics and synbiotics). As for the other interventions, the very few studies that have been conducted did not allow a strong conclusion to be made just yet. The MD (single and multidomain interventions) restored gut microbiota by increasing species richness (alpha diversity) and reduced intestinal permeability (zonulin) and inflammation (CRP). The PR diet only showed slight changes in the gut microbiota but improved the gut barrier by reducing zonulin, CRP and IL-6. Probiotics, prebiotics and synbiotics increased the genus Bifidobacterium spp. which are considered beneficial bacteria. This review has uncovered insights into the relationship between gut microbiota and intestinal epithelial barriers of specific non-pharmacological interventions in older adults.

14.
Expert Rev Anti Infect Ther ; : 1-14, 2024 Sep 29.
Artigo em Inglês | MEDLINE | ID: mdl-39317940

RESUMO

INTRODUCTION: The rising prevalence of difficult-to-treat, deep-seated invasive fungal diseases (IFD) has led to high mortality. Currently available antifungal treatments, administered predominantly orally or intravenously, may not sufficiently penetrate certain body sites, and/or are associated with systemic toxicity. Little is known about how to position alternative administration approaches such as inhalational and direct drug delivery routes. AREAS COVERED: This review provides an updated overview of unconventional drug delivery strategies for managing IFD, focusing on inhalational (to target the lungs) and direct delivery methods to the central nervous system, bone/joint, and eyes. Novel compounds (e.g. opelconazole) and existing antifungals with innovative drug delivery systems currently undergoing clinical trials and/or used off-label in the clinical setting are discussed. EXPERT OPINION: For both inhalational agents and direct delivery approaches, there are similar challenges that include the absence of: approved formulations for specific administration routes, delivery vehicles that are simple and safe to use whilst maintaining potency and efficiency of delivery, animal models suitable for investigating pharmacokinetic/pharmacodynamic profiles of inhaled antifungals, and consensus on the composite endpoints and intervals for of follow-up in clinical trials. To meet these challenges, cooperation of all stakeholders in drug development and regulation is required.

15.
Mycoses ; 56(5): 532-42, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23496163

RESUMO

Micafungin was non-inferior to liposomal amphotericin B (LAmB) for the treatment of candidaemia and invasive candidiasis (IC) in a major clinical trial. The present study investigated the economic impact of micafungin vs. LAmB in treating candidaemia and IC. A decision analytical model was constructed to capture downstream consequences of using micafungin or LAmB as primary definitive therapy. The main outcomes were treatment success and treatment failure due to mycological persistence, or death. Outcome probabilities were derived from key published sources. Resource used was estimated by an expert panel and cost inputs were from the latest Australian resources. The analysis was from an Australian hospital perspective. Sensitivity analyses using Monte Carlo simulation were conducted. Micafungin (AU$61 426) had a lower total cost than LAmB (AU$72 382), with a total net cost-saving of AU$10 957 per patient. This was primarily due to the lower cost associated with initial antifungal treatment and shorter length of stay for patients in the micafungin arm. Hospitalisation was the main cost driver for both arms. Results were robust over a wide range of variables. The uncertainty analysis demonstrated that micafungin had a 99.9% chance of being cost-saving compared with LAmB. Micafungin was associated with cost-saving relative to LAmB in the treatment of candidaemia and IC in Australia.


Assuntos
Anfotericina B/uso terapêutico , Antifúngicos/uso terapêutico , Candidemia/tratamento farmacológico , Candidíase Invasiva/tratamento farmacológico , Equinocandinas/uso terapêutico , Lipopeptídeos/uso terapêutico , Anfotericina B/economia , Antifúngicos/economia , Austrália , Equinocandinas/economia , Custos de Cuidados de Saúde , Humanos , Lipopeptídeos/economia , Micafungina , Resultado do Tratamento
16.
Expert Rev Anti Infect Ther ; 21(6): 577-594, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37057677

RESUMO

INTRODUCTION: Over the last two decades, we have experienced pressing needs for new additions to the antifungal armamentarium given the emergence of resistant fungi, the growth of at-risk patient populations for invasive fungal diseases (IFD), the high morbidity and mortality associated with IFD. AREAS COVERED: The current review will discuss the five promising antifungal agents for IFD (i.e. fosmanogepix, ibrexafungerp, olorofim, rezafungin, and opelconazole), now in the late-phase clinical studies, and likely to be available for clinical use in the near future. For each agent, we describe its mechanism of action, pharmacokinetic and pharmacodynamic properties, spectrum of activity as well as the safety and efficacy data, including findings from ongoing clinical trials. The potential roles of these novel antifungals in clinical practice and the key considerations for clinical use will also be discussed. EXPERT OPINION: There are unmet needs of these novel agents that should be addressed in the future studies. These include defining their indications and benefits, how to best target them appropriately, surveillance and stewardship of their use.


Assuntos
Infecções Fúngicas Invasivas , Micoses , Humanos , Antifúngicos/farmacologia , Micoses/tratamento farmacológico , Fungos , Infecções Fúngicas Invasivas/tratamento farmacológico , Fatores de Risco
17.
J Patient Exp ; 10: 23743735231184690, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37424538

RESUMO

This study explored the factors contributing to discontinuation of people who smoke (PWS) from quit smoking clinic prior to achieving 6-month abstinence. Fifteen active PWS were interviewed via telephone and face-to-face. Interviews were audio-recorded, transcribed and analysed using thematic analysis. At individual level, low intrinsic motivation including unreadiness to quit, low self-efficacy and ambivalence on smoking cessation were barriers to attain successful cessation. Influence of extrinsic factors such as work-related factors, social interaction and ill-health burden lead to poor commitment with QSC. At the clinic level, healthcare professional's competency, personal attributes, pharmacotherapy's efficacy, safety and availability were important components that may affect a participant's effort to quit. Working commitment was highlighted as the primary barrier for a successful cessation. Hence, effective intervention and collaborative effort between healthcare facilities and employers are essential to optimise cessation adherence among employees who smoke which subsequently will enhance their abstinence rates.

18.
Open Forum Infect Dis ; 10(2): ofad059, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36861090

RESUMO

Background: Management of Scedosporium/Lomentospora prolificans infections remains challenging. We described predisposing factors, clinical manifestations, and outcomes of these rare mold infections, including predictors of early (1-month) and late (18-month) all-cause mortality and treatment failure. Methods: We conducted a retrospective Australian-based observational study of proven/probable Scedosporium/L prolificans infections from 2005 to 2021. Data on patient comorbidities, predisposing factors, clinical manifestations, treatment, and outcomes up to 18 months were collected. Treatment responses and death causality were adjudicated. Subgroup analyses, multivariable Cox regression, and logistic regression were performed. Results: Of 61 infection episodes, 37 (60.7%) were attributable to L prolificans. Forty-five of 61 (73.8%) were proven invasive fungal diseases (IFDs), and 29 of 61 (47.5%) were disseminated. Prolonged neutropenia and receipt of immunosuppressant agents were documented in 27 of 61 (44.3%) and 49 of 61 (80.3%) episodes, respectively. Voriconazole/terbinafine was administered in 30 of 31 (96.8%) L prolificans infections, and voriconazole alone was prescribed for 15 of 24 (62.5%) Scedosporium spp infections. Adjunctive surgery was performed in 27 of 61 (44.3%) episodes. Median time to death post-IFD diagnosis was 9.0 days, and only 22 of 61 (36.1%) attained treatment success at 18 months. Those who survived beyond 28 days of antifungal therapy were less immunosuppressed with fewer disseminated infections (both P < .001). Disseminated infection and hematopoietic stem cell transplant were associated with increased early and late mortality rates. Adjunctive surgery was associated with lower early and late mortality rates by 84.0% and 72.0%, respectively, and decreased odds of 1-month treatment failure by 87.0%. Conclusions: Outcomes associated with Scedosporium/L prolificans infections is poor, particularly with L prolificans infections or in the highly immunosuppressed population.

19.
Antimicrob Agents Chemother ; 56(6): 3435-7, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22470114

RESUMO

While the successful use of topical caspofungin for patients has been reported, topical caspofungin is not commercially available and its stability is unknown, limiting its usefulness in treating fungal keratitis. Caspofungin (0.5%) eye drops were aseptically prepared, and the concentrations were measured using a validated high-performance liquid chromatography (HPLC) analysis. The preparations remained stable for 28 days under refrigerated condition but not at 25.0 °C. Our study supports the cost-saving use of caspofungin eye drops in the clinical setting.


Assuntos
Equinocandinas , Soluções Oftálmicas , Caspofungina , Cromatografia Líquida de Alta Pressão , Estabilidade de Medicamentos , Armazenamento de Medicamentos/economia , Armazenamento de Medicamentos/métodos , Lipopeptídeos
20.
Front Nutr ; 9: 844374, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35479741

RESUMO

Probiotic supplements have been increasingly reported for their usefulness in delaying the development and progression of non-alcoholic fatty liver disease (NAFLD). Literature on the impact of probiotics on NAFLD covered various aspects of the disease. This study was undertaken to systematically review in vivo findings on hepatoprotection of probiotics against NAFLD. The literature search was performed through Cochrane, PubMed/MEDLINE, Embase, and Web of Science databases. Interventions of known probiotics in NAFLD-induced animal model with at least one measurable NAFLD-related parameter were included. The data were extracted by all authors independently. Quality assessment was conducted using the Systematic Review Center for Laboratory animal Experimentation (SYRCLE's) Risk of Bias (RoB) tool. P-values of measures were compared inter- and intra-study for each parameter. Forty-four probiotic-based studies of NAFLD-induced rodents were shortlisted. The majority of the studies were presented with low/unclear risk of bias. Probiotics improved the histopathology of NAFLD rodents (primary outcome). Most of the probiotic-supplemented NAFLD rodents were presented with mixed effects on serum liver enzymes but with improved hepatic and serum lipid profiles (including increased serum high-density lipoprotein cholesterol). The findings were generally accompanied by downregulation of hepatic lipogenic, oxidative, and inflammatory signallings. Probiotics were found to modulate gut microbiota composition and its products, and intestinal permeability. Probiotics also resulted in better glycaemic control and reduced liver weight. Altogether, the present qualitative appraisals strongly implied the hepatoprotective potential of probiotics against NAFLD in vivo.

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