Non-Vitamin K Antagonist Oral Anticoagulant Treatment in Centenarians: A Series of Four Cases |
Acknowledgement to Referees |
Nivolumab-Induced Recurrence of Rheumatoid Arthritis in a Patient with Metastatic Gastric Adenocarcinoma |
A Systematic Review of Economic Evaluations Assessing the Cost-Effectiveness of Licensed Drugs Used for Previously Treated Epidermal Growth Factor Receptor (EGFR) and Anaplastic Lymphoma Kinase (ALK) Negative Advanced/Metastatic Non-Small Cell Lung CancerAbstractBackground
Non-small cell lung cancer (NSCLC) is one of the most commonly diagnosed cancers. There are many published studies of cost-effectiveness analyses of licensed treatments, but no study has compared these studies or their approaches simultaneously.
Objective
To investigate the methodology used in published economic analyses of licensed interventions for previously treated advanced/metastatic NSCLC in patients without anaplastic lymphoma kinase or epidermal growth factor receptor expression.
Methods
A systematic review was performed, including a systematic search of key databases (e.g. MEDLINE, EMBASE, Web of Knowledge, Cost-effectiveness Registry) limited to the period from 01 January 2001 to 26 July 2019. Two reviewers independently screened, extracted data and quality appraised identified studies. The reporting quality of the studies was assessed by using the Consolidated Health Economic Evaluation Reporting Standards and the Philips’ checklists.
Results
Thirty-one published records met the inclusion criteria, which corresponded to 30 individual cost-effectiveness analyses. Analytical approaches included partitioned survival models (n = 14), state-transition models (n = 7) and retrospective analyses of new or published data (n = 8). Model structure was generally consistent, with pre-progression, post-progression and death health states used most commonly. Other characteristics varied more widely, including the perspective of analysis, discounting, time horizon, usually to align with the country that the analysis was set in.
Conclusions
There are a wide range of approaches in the modelling of treatments for advanced NSCLC; however, the model structures are consistent. There is variation in the exploration of sensitivity analyses, with considerable uncertainty remaining in most evaluations. Improved reporting is necessary to ensure transparency in future analyses.
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Randomized Comparison Study of Novel Recombinant Human Antithrombin Gamma and Plasma-Derived Antithrombin in Healthy VolunteersAbstractBackground and Objective
This paper describes two studies, which aimed to compare the safety and plasma antithrombin activity of recombinant human antithrombin gamma (rhAT-gamma) with plasma-derived antithrombin (pAT) 60 IU/kg, and to establish bioequivalence by adjusting the rhAT-gamma dose to that at which plasma antithrombin activity equaled that for pAT 60 IU/kg, based on results of the first study.
Methods
Healthy adult men aged 20–45 years received once-daily doses of rhAT-gamma or pAT intravenously for 3 days (first study: 60 IU/kg of each; second study: 72 IU/kg of rhAT-gamma and 60 IU/kg of pAT). Maximum plasma antithrombin activity after three doses (Cmax,day3) and area under the plasma antithrombin activity-time curve after the third dose (AUC48–t) were analyzed. Safety was also assessed.
Results
In the first study, we compared AUCs to 121 h (when the lower limit of quantification was first observed). Mean Cmax,day3 was 1.67 IU/mL in the rhAT-gamma group and 1.77 IU/mL in the pAT group; mean AUC48–121 was 58.44 and 71.94 IU·h/mL, respectively. Thus, we set the dose of rhAT-gamma in the second study to 72 IU/kg. As a result, ratios of Cmax,day3 and AUC48–t in the rhAT-gamma vs. the pAT group were 105.7% (90% confidence interval 100.3, 111.3) and 100.5% (90% confidence interval 91.5, 110.4), respectively. Adverse events were more frequent in the rhAT-gamma group.
Conclusions
As 90% confidence intervals for Cmax,day3 and AUC48–t ratios for rhAT-gamma:pAT were within the acceptability range for bioequivalence, rhAT-gamma (72 IU/kg) and pAT (60 IU/kg) are considered bioequivalent.
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Reduction of Immune Activation and Partial Recovery of Staphylococcal Enterotoxin B-Induced Cytokine Production After Switching to an Integrase Strand Transfer Inhibitor-Containing Regimen: Results from an Observational Cohort StudyAbstractBackground and Objective
Despite integrase strand transfer inhibitor (INSTI)-containing regimens now being considered a preferred option for both initial therapy and switching strategies in virologically suppressed patients, their effects on lymphocyte phenotypes and functions in the course of effective combination antiretroviral therapy (cART) are still unclear. Thus, we investigated the effect of a 24-week elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate (EVG/c/FTC/TDF) regimen on the T cell compartment and HIV reservoirs in HIV-infected patients switching from a suppressive protease inhibitor-based regimen.
Methods
Thirty HIV-positive patients receiving suppressive tenofovir disoproxil fumarate/emtricitabine (TDF + FTC) (for a median of 5 years) in association with either darunavir/ritonavir (DVR/r) (47%) or atazanavir/ritonavir (ATV/r) (53%) were followed up for 24 weeks after switching to EVG/c/FTC/TDF. At baseline (week 0 [W0]) and after 12 (W12) and 24 (W24) weeks we analyzed HLA-DR (human leukocyte antigen–DR isotype)/CD38/Ki67/CCR7 (C-C chemokine receptor type 7)/CD45RA/CD127/PD-1 (programmed cell death-1) on CD4/CD8, interferon (IFN)-γ/interleukin (IL)-2 after HIV/Staphylococcal enterotoxin B (SEB) exposure (flow cytometry); total, integrated, and unintegrated HIV-DNA; and residual low-level HIV viremia (quantitative polymerase chain reaction [qPCR]).
Results
While EVG/c/FTC/TDF introduction resulted in a stable CD4+ and CD8+ count, residual low-level HIV-RNA viremia, and HIV reservoirs, we observed a significant reduction in both activated CD4+ (p = 0.016) and CD8+ (p = 0.048) T cells, coupled with an increase in IL-2 and IFN-γ release by CD4+ and CD8+ effector memory T cells, and a decrease in cytokine production by terminally differentiated CD8+ T cells following SEB exposure. Furthermore, the magnitude of the reduction of activated HLA-DR + CD38 + CD8+ T cells (r = − 0.63, p = 0.014) inversely correlates with the amount of total HIV-DNA at W24.
Conclusions
Our data show a favorable effect of EVG/c/FTC/TDF switch to preserve immune activation-driven damage to T cell homeostasis, restore the multifunctional properties of effector T cells, and possibly contain cell-associated HIV viral burden in already virologically suppressed patients.
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Efficacy of the Topical Calcineurin Inhibitors Tacrolimus and Pimecrolimus in the Treatment of Vitiligo in Infants Under 2 Years of Age: A Randomized, Open-Label Pilot StudyAbstractBackground
The efficacy of topical calcineurin inhibitors (TCIs) for the treatment of infants with vitiligo aged less than 2 years remains to be fully determined.
Objective
This aim of this pilot study was to assess the efficacy and tolerability of the TCIs tacrolimus and pimecrolimus in infants with vitiligo aged under 2 years.
Methods
Infants with vitiligo aged < 2 years were randomly assigned to receive either tacrolimus ointment 0.03% or pimecrolimus cream 1% for a period of 6 months. During this period, topical treatment was applied twice daily. The proportion of body surface area of the treated lesions, locations, and possible adverse effects were recorded. In addition, the overall satisfaction scores of the patients’ parents was evaluated by virtue of the visual analog scale (VAS).
Results
Forty-six infants with vitiligo were enrolled in this study. The overall response rate (> 0% repigmentation) was 100%, while the effective rate (> 50% repigmentation) of the tacrolimus and pimecrolimus groups was 69.6% and 65.2%, respectively. Meanwhile, the effective rates for vitiligo located on the head and neck, trunk, and extremities were 70%, 64.3% and 50%, respectively, while the response rates for non-segmental and segmental vitiligo were 74.4% and 28.6%, respectively. Only a low incidence of local adverse reactions (including mild redness and skin picking) was reported during the treatment process.
Conclusions
Topical tacrolimus ointment 0.03% or pimecrolimus cream 1% have efficacy for vitiligo in infants, which serves to achieve an appropriate level of safety and tolerability during the 6-month period of applications. Thus, TCIs proved to be a therapeutic option for vitiligo in infants under 2 years of age.
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Effect of Macitentan on the Pharmacokinetics of the Breast Cancer Resistance Protein Substrates, Rosuvastatin and Riociguat, in Healthy Male SubjectsAbstractBackground
Macitentan is a clinically approved endothelin receptor antagonist for the treatment of pulmonary arterial hypertension (PAH). Increasing use of combination drug therapy in PAH means that it is important to recognize potential drug–drug interactions (DDIs) that could affect the efficacy and safety of macitentan in patients with PAH.
Objective
Two Phase 1 studies were conducted to investigate the effect of macitentan at steady-state on the pharmacokinetics of the breast cancer resistance protein (BCRP) substrates, rosuvastatin and riociguat in healthy male subjects. Another objective was to determine the safety and tolerability of concomitant administration of rosuvastatin or riociguat with macitentan.
Methods
Healthy male subjects received a single oral dose of rosuvastatin 10 mg (n = 20) or riociguat 1 mg (n = 20) on Day 1 (reference treatment). A loading oral dose of macitentan 30 mg was administered on Day 5 followed by macitentan 10 mg once-daily from Day 6 to Day 15 (riociguat study) or Day 6 to Day 16 (rosuvastatin study). A concomitant oral dose of rosuvastatin 10 mg or riociguat 1 mg was administered on Day 10 (test treatment). Pharmacokinetics were evaluated for 96 h after treatment on Day 1 and for 144 h (riociguat study) or 168 h (rosuvastatin study) after treatment on Day 10. To compare the reference and test treatments, the geometric mean ratio was calculated for the maximum plasma concentration (Cmax), the area under the plasma concentration-time curve (AUC) from zero (pre-dose) to time of the last measured concentration above the limit of quantification (AUC0–t), the AUC from zero to infinity (AUC0–∞) and the terminal elimination half-life (t½) of rosuvastatin, riociguat and riociguat’s metabolite, M1. The difference in the time to reach maximum plasma concentration (tmax) was determined by the Wilcoxon test. Trough levels of macitentan and its metabolite, ACT-132577, were measured and safety was monitored throughout.
Results
Ninety percent confidence intervals of the geometric mean ratios were within the bioequivalence criteria of 0.80–1.25. There was no significant difference between test and reference tmax. Rosuvastatin or riociguat did not affect the steady-state concentrations of macitentan and ACT-132577. The adverse event profile was consistent with the known safety profiles of the drugs.
Conclusions
Macitentan 10 mg did not affect the pharmacokinetics of BCRP substrates, rosuvastatin or riociguat in healthy male subjects.
EudraCT numbers: 2017–003095–31 and 2017–003502–41.
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Investigation of the Association Between Total and Free Plasma and Saliva Mycophenolic Acid Concentrations Following Administration of Enteric-Coated Mycophenolate Sodium in Adult Kidney Transplant RecipientsAbstractBackground and Objectives
Mycophenolic acid (MPA) is commonly used following renal transplant. Saliva MPA concentrations may reflect the pharmacologically active form of MPA in plasma. Therapeutic drug monitoring using saliva is convenient and non-invasive. This study examined the correlation between total and free plasma and saliva MPA concentrations following enteric-coated mycophenolate sodium (EC-MS) administration in renal transplant recipients.
Methods
Total and free plasma and saliva MPA concentrations were measured simultaneously in 20 adult renal transplant recipients 1–2 months’ post-transplant. Thirteen samples were taken pre-dose and at specified time points up until 12 h post-dose.
Results
When considering all time points, correlation between total plasma and saliva MPA was r2 = 0.51 and between free plasma and saliva MPA concentrations r2 = 0.41. The correlation between total plasma MPA area under the concentration–time curve (AUC) or free plasma AUC and saliva MPA AUC was r2 = 0.25 and r2 = 0.13, respectively. The correlation between total plasma MPA AUC and total plasma MPA trough (C0) concentrations was r2 = 0.51, and between total plasma MPA AUC and saliva MPA trough concentrations, r2 = 0.03.
Conclusions
Measurement of MPA concentration in saliva cannot currently replace plasma measurement for therapeutic drug monitoring of MPA following EC-MS administration. Additional studies are required to examine the relationship between MPA saliva concentrations and patient outcomes.
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Gut Microbiome in Psoriasis is Perturbed Differently During Secukinumab and Ustekinumab Therapy and Associated with Response to TreatmentAbstractBackground and Objective
Immunotherapy could change the complex host-microbial interactions. We aimed to investigate the dynamics of gut microbiome in response to secukinumab [an interleukin (IL)-17 inhibitor] and ustekinumab (an IL-12/23 inhibitor) therapy and its association with treatment response in psoriasis.
Methods
This observational, longitudinal study collected a total of 114 fecal samples from 12 healthy controls and 34 patients with psoriasis at baseline and 3 and 6 months after secukinumab (n = 24) or ustekinumab treatment (n = 10) and gut microbiomes were investigated using next-generation sequencing targeting 16S ribosomal RNA.
Results
Secukinumab treatment causes more profound alterations in gut microbiome, including increases in the relative abundance of phylum Proteobacteria and decreases in Bacteroidetes and Firmicutes, than ustekinumab treatment. The relative abundance of family Pseudomonadaceae, family Enterobacteriaceae and order Pseudomonadales also increased significantly following secukinumab therapy. In contrast, there was no significant change in gut microbiome composition following ustekinumab treatment, and only genus Coprococcus significantly increased after 6 months of ustekinumab therapy. Moreover, we observed significant differences in baseline gut microbiome between responders and non-responders to secukinumab treatment.
Conclusion
These results indicate that gut microbiome is altered differently after anti-IL17 and anti-IL12/23 treatment. Secukinumab (anti-IL17) therapy is associated with distinct and more profound gut microbiome shifts than ustekinumab therapy (anti-IL 12/23) in patients with psoriasis. Moreover, gut microbiome would serve as potential biomarkers of response to secukinumab treatment.
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ΩτοΡινοΛαρυγγολόγος Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,
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Τετάρτη 13 Νοεμβρίου 2019
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00302841026182,
00306932607174,
alsfakia@gmail.com,
Anapafseos 5 Agios Nikolaos 72100 Crete Greece,
Medicine by Alexandros G. Sfakianakis,
Telephone consultation 11855 int 1193
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