Olaparib treatment significantly improved objective response rate (primary end point) and progression-free survival versus nonplatinum chemotherapy in patients with BRCA-mutated platinum-sensitive relapsed ovarian cancer in the open-label phase III SOLO3 trial (ClinicalTrials.gov identifier: NCT02282020). We report final overall survival (OS; prespecified secondary end point), post hoc OS analysis by number of previous chemotherapy lines, and exploratory BRCA reversion mutation analysis. Two hundred sixty-six patients were randomly assigned 2:1 to olaparib tablets (300 mg twice daily; n = 178) or physician's choice of single-agent nonplatinum chemotherapy (pegylated liposomal doxorubicin, paclitaxel, gemcitabine, or topotecan; n = 88). OS was similar with olaparib versus chemotherapy (hazard ratio [HR], 1.07 [95% CI, 0.76 to 1.49]; P = .71, median 34.9 and 32.9 months, respectively, full analysis set). OS with olaparib was favorable in patients with two previous chemotherapy lines (HR, 0.83 [olaparib v chemotherapy] [95% CI, 0.51 to 1.38]; median 37.9 v 28.8 months); however, a potential detrimental effect was seen in patients with at least three previous chemotherapy lines (HR, 1.33 [95% CI, 0.84 to 2.18]; median 29.9 v 39.4 months). BRCA reversion mutations might have contributed to this finding. No patient randomly assigned to olaparib with a BRCA reversion mutation detected at baseline (6 of 170 [3.5%]) achieved an objective tumor response.

• MeSH
• deoxycytidin analogy a deriváty   aplikace a dávkování   MeSH
• doba přežití bez progrese choroby MeSH
• dospělí MeSH
• doxorubicin analogy a deriváty   aplikace a dávkování   MeSH
• ftalaziny * terapeutické užití   škodlivé účinky   aplikace a dávkování   MeSH
• gemcitabin MeSH
• lidé středního věku MeSH
• lidé MeSH
• lokální recidiva nádoru * farmakoterapie   MeSH
• nádory vaječníků * farmakoterapie   genetika   mortalita   patologie   MeSH
• paclitaxel aplikace a dávkování   MeSH
• PARP inhibitory * terapeutické užití   škodlivé účinky   MeSH
• piperaziny * terapeutické užití   škodlivé účinky   aplikace a dávkování   MeSH
• polyethylenglykoly aplikace a dávkování   MeSH
• protein BRCA1 genetika   MeSH
• protein BRCA2 genetika   MeSH
• protokoly protinádorové kombinované chemoterapie * terapeutické užití   škodlivé účinky   MeSH
• senioři MeSH
• topotekan aplikace a dávkování   MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• klinické zkoušky, fáze III MeSH
• multicentrická studie MeSH
• randomizované kontrolované studie MeSH

Pegunigalsidase alfa, a PEGylated α-galactosidase A enzyme replacement therapy (ERT) for Fabry disease, has a longer plasma half-life than other ERTs administered intravenously every 2 weeks (E2W). BRIGHT (NCT03180840) was a phase III, open-label study in adults with Fabry disease, previously treated with agalsidase alfa or beta E2W for ≥3 years, who switched to 2 mg/kg pegunigalsidase alfa every 4 weeks (E4W) for 52 weeks. Primary objective assessed safety, including number of treatment-emergent adverse events (TEAEs). Thirty patients were enrolled (24 males); 23 previously received agalsidase beta. Pegunigalsidase alfa plasma concentrations remained above the lower limit of quantification throughout the 4-week dosing interval. Thirty-three of 182 TEAEs (in 9 patients) were considered treatment-related; all were mild/moderate. No patients developed de novo anti-drug antibodies (ADAs). In the efficacy analysis (n = 29), median (inter-quartile range) eGFR change from baseline over 52 weeks was -1.9 (-5.9; 1.8) mL/min/1.73 m2 (n = 28; males [n = 22]: -2.4 [-5.2; 3.2]; females [n = 6]: -0.7 [-9.2; 2.0]). Overall, median eGFR slope was -1.9 (-8.3; 1.9) mL/min/1.73 m2/year (ADA-negative [n = 20]: -1.2 [-6.4; 2.6]; ADA-positive [n = 9]: -8.4 [-11.6; -1.0]). Lyso-Gb3 concentrations were low and stable in females, with a slight increase in males (9/24 ADA-positive). The BRIGHT study results suggest that 2 mg/kg pegunigalsidase alfa E4W is tolerated well in stable adult patients with Fabry disease. Due to the low number of patients in this study, more research is needed to demonstrate the effects of pegunigalsidase alfa given E4W. Further evidence, outside of this clinical trial, should be factored in for physicians to prolong the biweekly ERT intervals to E4W. TAKE-HOME MESSAGE: Treatment with 2 mg/kg pegunigalsidase alfa every 4 weeks could offer a new treatment option for patients with Fabry disease.

• MeSH
• alfa-galaktosidasa * aplikace a dávkování   terapeutické užití   MeSH
• dospělí MeSH
• enzymová substituční terapie * metody   MeSH
• Fabryho nemoc * farmakoterapie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladý dospělý MeSH
• polyethylenglykoly aplikace a dávkování   MeSH
• rekombinantní proteiny * aplikace a dávkování   terapeutické užití   MeSH
• rozvrh dávkování léků MeSH
• senioři MeSH
• sfingolipidy krev   MeSH
• trihexosylceramidy krev   MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• klinické zkoušky, fáze III MeSH
• multicentrická studie MeSH
• práce podpořená grantem MeSH

The utilization of 3D printing- digital light processing (DLP) technique, for the direct fabrication of microneedles encounters the problem of drug solubility in printing resin, especially if it is predominantly composed of water. The possible solution how to ensure ideal belonging of drug and water-based printing resin is its pre-formulation in nanosuspension such as nanocrystals. This study investigates the feasibility of this approach on a resin containing nanocrystals of imiquimod (IMQ), an active used in (pre)cancerous skin conditions, well known for its problematic solubility and bioavailability. The resin blend of polyethylene glycol diacrylate and N-vinylpyrrolidone, and lithium phenyl-2,4,6-trimethylbenzoylphosphinate as a photoinitiator, was used, mixed with IMQ nanocrystals in water. The final microneedle-patches had 36 cylindrical microneedles arranged in a square grid, measuring approximately 600 μm in height and 500 μm in diameter. They contained 5wt% IMQ, which is equivalent to a commercially available cream. The homogeneity of IMQ distribution in the matrix was higher for nanocrystals compared to usual crystalline form. The release of IMQ from the patches was determined ex vivo in natural skin and revealed a 48% increase in efficacy for nanocrystal formulations compared to the crystalline form of IMQ.

• MeSH
• 3D tisk * MeSH
• aplikace kožní MeSH
• imichimod * chemie   aplikace a dávkování   MeSH
• jehly * MeSH
• kožní absorpce MeSH
• kůže metabolismus   MeSH
• lékové transportní systémy přístrojové vybavení   MeSH
• mikroinjekce přístrojové vybavení   MeSH
• nanočástice * chemie   aplikace a dávkování   MeSH
• polyethylenglykoly chemie   aplikace a dávkování   MeSH
• povidon chemie   MeSH
• rozpustnost * MeSH
• uvolňování léčiv MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH

Koloskopické vyšetření je klíčová metoda pro prevenci, diagnostiku i léčbu onemocnění tlustého střeva. Součástí koloskopického vyšetření je příprava střeva před samotným zákrokem, spočívající ve vyprázdnění střeva pomocí perorálně užívaných lavážujících látek a s tím související přechodná změna diety. Tato příprava může u pacientů s diabetes mellitus vést k rozkolísání glykemie a riziku hypoglykemie. Kazuistika popisuje případ pacienta s diabetes mellitus 1. typu léčeného pomocí hybridního uzavřeného okruhu, který v rámci přípravy na koloskopické vyšetření využíval na základě dat z kontinuální monitorace glykemie sáčky s 5 gramy sacharózy k doplnění energie a stabilizaci glykemie. Glykemie se v průběhu přípravy pohybovaly

Colonoscopy is a key method for preventing, diagnosing, and treating colon diseases. The colonoscopic examination includes preparing the colon before the procedure, which involves emptying the bowel with orally administered lavage agents and the associated temporary change in diet. This preparation can lead to glycemic fluctuations and the risk of hypoglycemia in patients with diabetes mellitus. This case report describes the case of a patient with type 1 diabetes mellitus treated with a hybrid closed-loop system who used 5 grams of sucrose sachets during colonoscopic preparation to replenish energy and stabilize glucose based on continuous glucose monitoring data. Glycemia during preparation kept within recommended values 3.9-10.0 mmol/l.

• MeSH
• defekace účinky léků   MeSH
• diabetes mellitus 1. typu * komplikace   MeSH
• hypoglykemie prevence a kontrola   MeSH
• kolonoskopie * škodlivé účinky   MeSH
• kolorektální nádory prevence a kontrola   MeSH
• komplikace diabetu prevence a kontrola   MeSH
• krevní glukóza analýza   MeSH
• lidé středního věku MeSH
• lidé MeSH
• polyethylenglykoly aplikace a dávkování   MeSH
• předoperační péče metody   MeSH
• regulace glykemie metody   MeSH
• sacharosa aplikace a dávkování   MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• Publikační typ
• kazuistiky MeSH

Interferon-based therapies, such as ropeginterferon alfa-2b have emerged as promising disease-modifying agents for myeloproliferative neoplasms (MPNs), including essential thrombocythemia (ET). Current ET treatments aim to normalize hematological parameters and reduce the thrombotic risk, but they do not modify the natural history of the disease and hence, have no impact on disease progression. Ropeginterferon alfa-2b (trade name BESREMi®), a novel, monopegylated interferon alfa-2b with an extended administration interval, has demonstrated a robust and sustained efficacy in polycythemia vera (PV) patients. Given the similarities in disease pathophysiology and treatment goals, ropeginterferon alfa-2b holds promise as a treatment option for ET. The ROP-ET trial is a prospective, multicenter, single-arm phase III study that includes patients with ET who are intolerant or resistant to, and/or are ineligible for current therapies, such as hydroxyurea (HU), anagrelide (ANA), busulfan (BUS) and pipobroman, leaving these patients with limited treatment options. The primary endpoint is a composite response of hematologic parameters and disease-related symptoms, according to modified European LeukemiaNet (ELN) criteria. Secondary endpoints include improvements in symptoms and quality of life, molecular response and the safety profile of ropeginterferon alfa-2b. Over a 3-year period the trial assesses longer term outcomes, particularly the effects on allele burden and clinical outcomes, such as disease-related symptoms, vascular events and disease progression. No prospective clinical trial data exist for ropeginterferon alfa-2b in the planned ET study population and this study will provide new findings that may contribute to advancing the treatment landscape for ET patients with limited alternatives. TRIAL REGISTRATION: EU Clinical Trials Register; EudraCT, 2023-505160-12-00; Registered on October 30, 2023.

• MeSH
• dospělí MeSH
• esenciální trombocytemie * farmakoterapie   MeSH
• interferon alfa-2 * terapeutické užití   škodlivé účinky   MeSH
• interferon alfa * terapeutické užití   škodlivé účinky   MeSH
• klinické zkoušky, fáze III jako téma MeSH
• lidé středního věku MeSH
• lidé MeSH
• multicentrické studie jako téma MeSH
• polyethylenglykoly * terapeutické užití   škodlivé účinky   aplikace a dávkování   MeSH
• prospektivní studie MeSH
• rekombinantní proteiny * terapeutické užití   škodlivé účinky   aplikace a dávkování   MeSH
• senioři MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• protokol klinické studie MeSH

• MeSH
• anamnéza MeSH
• defekace fyziologie   MeSH
• diferenciální diagnóza MeSH
• dítě MeSH
• fekální inkontinence klasifikace   MeSH
• lidé MeSH
• manometrie metody   MeSH
• polyethylenglykoly aplikace a dávkování   MeSH
• projímadla aplikace a dávkování   klasifikace   MeSH
• věkové faktory MeSH
• zácpa * diagnóza   dietoterapie   etiologie   farmakoterapie   patologie   terapie   MeSH
• Check Tag
• dítě MeSH
• lidé MeSH
• Publikační typ
• přehledy MeSH

BACKGROUND AND OBJECTIVES: The pharmacokinetics of polyethylene glycol-conjugated asparaginase (PEG-ASNase) are characterized by an increase in elimination over time, a marked increase in ASNase activity levels from induction to reinduction, and high inter- and intraindividual variability. A population pharmacokinetic (PopPK) model is required to estimate individual dose intensity, despite gaps in monitoring compliance. METHODS: In the AIEOP-BFM ALL 2009 trial, two PEG-ASNase administrations (2500 U/m2 intravenously) during induction (14-day interval) and one administration during reinduction were administered in children with acute lymphoblastic leukemia. ASNase activity levels were monitored weekly. A PopPK model was used for covariate modeling and external validation. The predictivity of the model in case of missing data was tested for observations, as well as for the derived parameters of the area under the concentration time curve (AUC0-∞) and time above different thresholds. RESULTS: Compared to the first administration in induction (1374 patients, 6069 samples), the initial clearance and volume of distribution decreased by 11.0% and 15.9%, respectively, during the second administration during induction and by 41.2% and 28.4% during reinduction. Furthermore, the initial clearance linearly increased for children aged > 8 years and was 7.1% lower for females. The model was successfully externally validated (1253 patients, 5523 samples). In case of missing data, > 52% of the predictions for observations and > 82% for derived parameters were within ± 20% of the nominal value. CONCLUSION: A PopPK model that describes the complex pharmacokinetics of PEG-ASNase was successfully externally validated. AUC0-∞ or time above different thresholds, which are parameters describing dose intensity, can be estimated with high predictivity, despite missing data. ( www.clinicaltrials.gov , NCT01117441, first submitted date: May 3, 2010).

• MeSH
• akutní lymfatická leukemie farmakoterapie   MeSH
• asparaginasa aplikace a dávkování   farmakokinetika   MeSH
• biologické modely * MeSH
• dítě MeSH
• kojenec MeSH
• lidé MeSH
• mladiství MeSH
• plocha pod křivkou MeSH
• polyethylenglykoly aplikace a dávkování   farmakokinetika   MeSH
• předškolní dítě MeSH
• protinádorové látky aplikace a dávkování   farmakokinetika   MeSH
• tkáňová distribuce MeSH
• Check Tag
• dítě MeSH
• kojenec MeSH
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• předškolní dítě MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• klinické zkoušky MeSH
• multicentrická studie MeSH
• validační studie MeSH

BACKGROUND: Therapeutic drug monitoring (TDM) can identify patients with subtherapeutic asparaginase (ASNase) activity [silent inactivation (SI)] and prospectively guide therapeutic adaptation. However, limited intra-individual variability is a precondition for targeted dosing and the diagnosis of SI. METHODS: In the AIEOP-BFM acute lymphoblastic leukemia (ALL) 2009 trial, 2771 children with ALL were included and underwent ASNase-TDM in a central laboratory in Münster. Two biweekly administrations of pegylated ASNase during induction and a third dose during reinduction or the high-risk block, which was administered several weeks later, were monitored. We calculated (1) the incidence of SI; and (2) the predictivity of SI for SI after the subsequent administration. ASNase activities monitored during induction were categorized into percentiles at the respective sampling time points. These percentiles were used to calculate the intra-individual range of percentiles as a surrogate for intrapatient variability and to evaluate the predictivity of ASNase activity for the subsequent administration. RESULTS: The overall incidence of SI was low (4.9%). The positive predictive value of SI identified by one sample was ≤21%. Confirmation of SI by a second sample indicated a high positive predictive value of 100% for biweekly administrations, but not for administration more than 17 weeks later. Sampling and/or documentation errors were risks for misdiagnosis of SI. High intra-individual variability in ASNase activities, with ranges of percentiles over more than 2 quartiles and low predictivity, was observed in approximately 25% of the patients. These patients were likely to fail dose individualization based on TDM data. CONCLUSIONS: To use TDM as a basis for clinical decisions, standardized clinical procedures are required and high intra-individual variability should be taken into account. Details of the treatment are available in the European Clinical Trials Database at https://www.clinicaltrialsregister.eu/ctr-search/trial/2007-004270-43/DE.

• MeSH
• akutní lymfatická leukemie farmakoterapie   MeSH
• asparagin krev   MeSH
• asparaginasa aplikace a dávkování   krev   terapeutické užití   MeSH
• dítě MeSH
• kojenec MeSH
• lidé MeSH
• metabolická inaktivace fyziologie   MeSH
• mladiství MeSH
• monitorování léčiv metody   MeSH
• polyethylenglykoly aplikace a dávkování   terapeutické užití   MeSH
• předškolní dítě MeSH
• vztah mezi dávkou a účinkem léčiva MeSH
• Check Tag
• dítě MeSH
• kojenec MeSH
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• předškolní dítě MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

The colloidal stability, in vitro toxicity, cell association, and in vivo pharmacokinetic behavior of liposomes decorated with monomethoxy-poly(ethylene glycol)-lipids (mPEG-lipids) with different chemical features were comparatively investigated. Structural differences of the mPEG-lipids used in the study included: (a) surface-anchoring moiety [1,2-distearoyl-sn-glycero-3-phosphoethanolamine (DSPE), cholesterol (Chol), and cholane (Chln)]; (b) mPEG molecular weight (2 kDa mPEG45 and 5 kDa mPEG114); and (c) mPEG shape (linear and branched PEG). In vitro results demonstrated that branched (mPEG114)2-DSPE confers the highest stealth properties to liposomes (∼31-fold lower cell association than naked liposomes) with respect to all PEGylating agents tested. However, the pharmacokinetic studies showed that the use of cholesterol as anchoring group yields PEGylated liposomes with longer permeance in the circulation and higher systemic bioavailability among the tested formulations. Liposomes decorated with mPEG114-Chol had 3.2- and ∼2.1-fold higher area under curve (AUC) than naked liposomes and branched (mPEG114)2-DSPE-coated liposomes, respectively, which reflects the high stability of this coating agent. By comparing the PEGylating agents with same size, namely, linear 5 kDa PEG derivatives, linear mPEG114-DSPE yielded coated liposomes with the best in vitro stealth performance. Nevertheless, the in vivo AUC of liposomes decorated with linear mPEG114-DSPE was lower than that obtained with liposomes decorated with linear mPEG114-Chol. Computational molecular dynamics modeling provided additional insights that complement the experimental results.

• MeSH
• biologická dostupnost MeSH
• cholany aplikace a dávkování   chemie   farmakokinetika   MeSH
• cholesterol aplikace a dávkování   chemie   farmakokinetika   MeSH
• fosfatidylethanolaminy aplikace a dávkování   chemie   farmakokinetika   MeSH
• HeLa buňky MeSH
• lidé MeSH
• lipidy MeSH
• liposomy MeSH
• molekulová hmotnost MeSH
• myši inbrední BALB C MeSH
• myši MeSH
• nosiče léků farmakokinetika   MeSH
• polyethylenglykoly aplikace a dávkování   chemie   farmakokinetika   MeSH
• povrchové vlastnosti MeSH
• příprava léků metody   MeSH
• simulace molekulární dynamiky MeSH
• stabilita léku MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• myši MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH

Asparaginase-associated pancreatitis is a life-threatening toxicity to childhood acute lymphoblastic leukemia treatment. To elucidate genetic predisposition and asparaginase-associated pancreatitis pathogenesis, ten trial groups contributed remission samples from patients aged 1.0-17.9 years treated for acute lymphoblastic leukemia between 2000 and 2016. Cases (n=244) were defined by the presence of at least two of the following criteria: (i) abdominal pain; (ii) levels of pancreatic enzymes ≥3 × upper normal limit; and (iii) imaging compatible with pancreatitis. Controls (n=1320) completed intended asparaginase therapy, with 78% receiving ≥8 injections of pegylated-asparaginase, without developing asparaginase-associated pancreatitis. rs62228256 on 20q13.2 showed the strongest association with the development of asparaginase-associated pancreatitis (odds ratio=3.75; P=5.2×10-8). Moreover, rs13228878 (OR=0.61; P=7.1×10-6) and rs10273639 (OR=0.62; P=1.1×10-5) on 7q34 showed significant association with the risk of asparaginase-associated pancreatitis. A Dana Farber Cancer Institute ALL Consortium cohort consisting of patients treated on protocols between 1987 and 2004 (controls=285, cases=33), and the Children's Oncology Group AALL0232 cohort (controls=2653, cases=76) were available as replication cohorts for the 20q13.2 and 7q34 variants, respectively. While rs62228256 was not validated as a risk factor (P=0.77), both rs13228878 (P=0.03) and rs10273639 (P=0.04) were. rs13228878 and rs10273639 are in high linkage disequilibrium (r2=0.94) and associated with elevated expression of the PRSS1 gene, which encodes for trypsinogen, and are known risk variants for alcohol-associated and sporadic pancreatitis in adults. Intra-pancreatic trypsinogen cleavage to proteolytic trypsin induces autodigestion and pancreatitis. In conclusion, this study finds a shared genetic predisposition between asparaginase-associated pancreatitis and non-asparaginase-associated pancreatitis, and targeting the trypsinogen activation pathway may enable identification of effective interventions for asparaginase-associated pancreatitis.

• MeSH
• akutní lymfatická leukemie komplikace   farmakoterapie   genetika   MeSH
• alely MeSH
• asparaginasa aplikace a dávkování   škodlivé účinky   MeSH
• biologické modely MeSH
• dítě MeSH
• fenotyp MeSH
• genetická predispozice k nemoci MeSH
• genetická variace * MeSH
• genetické asociační studie MeSH
• genotyp MeSH
• jednonukleotidový polymorfismus MeSH
• kojenec MeSH
• lidé MeSH
• mladiství MeSH
• pankreatitida etiologie   MeSH
• polyethylenglykoly aplikace a dávkování   škodlivé účinky   MeSH
• předškolní dítě MeSH
• protinádorové látky aplikace a dávkování   škodlivé účinky   MeSH
• trypsin genetika   MeSH
• trypsinogen genetika   MeSH
• Check Tag
• dítě MeSH
• kojenec MeSH
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• předškolní dítě MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH