Publications by authors named "Sandra Waechter"

Article Synopsis
  • Study investigates the use of patiromer, a potassium binder, to improve the effectiveness of RAAS inhibitors in patients with heart failure and hyperkalemia.
  • In a trial with over 1,000 patients, those with hyperkalemia were able to optimize their medication while on patiromer, showing a slight reduction in serum potassium levels compared to placebo.
  • Results suggest patiromer helps patients with current hyperkalemia maintain optimal doses of medication more effectively than those with a history of hyperkalemia, enhancing treatment outcomes for heart failure management.
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Article Synopsis
  • Hyperkalemia (HK) impacts the effectiveness of renin-angiotensin system (RAS) inhibitors and mineralocorticoid receptor antagonists (MRAs) in patients with heart failure with reduced ejection fraction (HFrEF).
  • The study analyzed patients with HFrEF and either HK or a history of HK during a run-in phase designed to optimize their RAS inhibitor and MRA doses using patiromer.
  • Results showed significant increases in the use of RAS inhibitors and MRAs among patients meeting the optimization criteria, indicating that patiromer helped enhance treatment for those with HK or a history of HK.
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Article Synopsis
  • Many heart failure (HF) patients do not receive optimal doses of RAAS inhibitors due to worries about hyperkalemia (HK).
  • The CARE-HK registry enrolled 2558 adults with chronic HF, primarily those with reduced ejection fraction, to evaluate RAASi treatment patterns and HK management across clinical practices in Europe and the USA.
  • The study aims to better understand how RAAS inhibitors are used in patients at high risk for HK and to analyze their treatment outcomes in routine medical settings.
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Article Synopsis
  • - The study evaluated the effectiveness of patiromer, a drug used to manage high potassium levels (hyperkalemia), in patients with heart failure and chronic kidney disease, especially focusing on its benefits when used alongside RAAS inhibitors.
  • - Results showed that patiromer was particularly effective in controlling serum potassium levels in patients with more advanced chronic kidney disease (CKD), without increasing the risk of adverse effects.
  • - The research concluded that patiromer allows for safer use of RAAS inhibitors in patients with heart failure, especially those with lower estimated glomerular filtration rates (eGFR), while minimizing hyperkalemia risk.
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Background: Iron plays a key role in human immune responses; however, the influence of iron deficiency on the coronavirus disease 2019 (COVID-19) vaccine effectiveness is unclear.

Aim: To assess the effectiveness of the BNT162b2 messenger RNA COVID-19 vaccine in preventing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and COVID-19-related hospitalization and death in individuals with or without iron deficiency.

Methods: This large retrospective, longitudinal cohort study analyzed real-world data from the Maccabi Healthcare Services database (covering 25% of Israeli residents).

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Aims: In order to understand how sex differences impact the generalizability of randomized clinical trials (RCTs) in patients with heart failure (HF) and reduced ejection fraction (HFrEF), we sought to compare clinical characteristics and clinical outcomes between RCTs and HF observational registries stratified by sex.

Methods And Results: Data from two HF registries and five HFrEF RCTs were used to create three subpopulations: one RCT population (n = 16 917; 21.7% females), registry patients eligible for RCT inclusion (n = 26 104; 31.

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Background: Heart failure (HF) trials have stringent inclusion and exclusion criteria, but limited data exist regarding generalizability of trials. We compared patient characteristics and outcomes between patients with HF and reduced ejection fraction (HFrEF) in trials and observational registries.

Methods And Results: Individual patient data for 16 922 patients from five randomized clinical trials and 46 914 patients from two HF registries were included.

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Background: Approximately 30%-45% of patients with nondialysis CKD have iron deficiency. Iron therapy in CKD has focused primarily on supporting erythropoiesis. In patients with or without anemia, there has not been a comprehensive approach to estimating the association between serum biomarkers of iron stores, and mortality and cardiovascular event risks.

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Background: Iron deficiency (ID) is a common condition in nondialysis-dependent chronic kidney disease (NDD-CKD) patients that is associated with poorer clinical outcomes. However, the effect of ID on health-related quality of life (HRQoL) in this population is unknown. We analyzed data from a multinational cohort of NDD-CKD Stages 3-5 patients to test the association between transferrin saturation (TSAT) index and ferritin with HRQoL.

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Previously lacking in the literature, we describe longitudinal patterns of anemia prescriptions for non-dialysis-dependent chronic kidney disease (NDD-CKD) patients under nephrologist care. We analyzed data from 2818 Stage 3-5 NDD-CKD patients from Brazil, Germany, and the US, naïve to anemia medications (oral iron, intravenous [IV] iron, or erythropoiesis stimulating agent [ESA]) at enrollment in the CKDopps. We report the cumulative incidence function (CIF) of medication initiation stratified by baseline characteristics.

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Background: Anemia at hemodialysis (HD) initiation is common. Correcting low hemoglobin (Hgb) before HD initiation may improve survival by avoiding potential harms of chronic anemia, high doses of erythropoiesis-stimulating agents (ESAs) and intravenous (IV) iron in the early HD period, and/or rapid Hgb rise.

Methods: We included 4604 incident HD patients from 21 countries in the Dialysis Outcomes and Practice Patterns Study Phases 4-5 (2009-15).

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Background: Increased body mass index (BMI) is associated with a higher risk of gastroesophageal reflux disease (GORD).

Aim: To investigate whether overweight/obesity affects proton pump inhibitor pharmacodynamics when used in a single dose in patients with GORD.

Methods: Post hoc analyses by patient BMI were performed on data from two single-center, double-blind, single-dose, crossover studies comparing the pharmacodynamics of rabeprazole 20 mg and pantoprazole 40 mg in GORD patients with a history of nocturnal heartburn.

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Objective: To find potential correlates of placebo response in adults with attention-deficit/hyperactivity disorder (ADHD) and gain insights into why placebo response may be high in clinical trials.

Method: Post hoc analysis of placebo data from 2 randomized controlled trials of osmotic-release oral system (OROS) methylphenidate in adults with ADHD defined according to the Diagnostic and Statistical Manual of Mental Diseases, Fourth Edition: the Long-Acting Methylphenidate in Adults with ADHD (LAMDA-I) study (2005-2006, 5 weeks, n = 95) and the LAMDA-II study (2008-2009, 13 weeks, n = 97). The primary efficacy measure was the Conners' Adult ADHD Rating Scale-observer rated, short version (CAARS:O-SV).

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Article Synopsis
  • A study comparing once-daily OROS hydromorphone ER with twice-daily oxycodone CR showed that both medications effectively reduced chronic pain in patients, with OROS hydromorphone being noninferior.
  • Over 28 weeks, participants reported similar improvements in pain levels, quality of life, and overall treatment convenience, with a slightly higher percentage finding OROS hydromorphone's dosing more convenient.
  • Most patients expressed high satisfaction with both medications' tolerability and efficacy, with both treatments maintaining their effectiveness over a year, and very few patients discontinued due to side effects.
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Background. Opioid analgesics are included in treatment guidelines for the symptomatic management of osteoarthritis (OA). Starting with a low dose of opioid and slowly titrating to a higher dose may help avoid intolerable side effects.

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Methylphenidate (MPH) is widely prescribed for adults with attention deficit hyperactivity disorder (ADHD), but data on long-term treatment and maintenance of effect are lacking. Osmotic release oral system-methylphenidate (OROS-MPH) was evaluated in a 52-wk open-label study in subjects who had previously completed a short-term placebo-controlled trial and short-term open-label extension. Efficacy was assessed using the investigator- and subject-rated Conners' Adult ADHD Rating Scales (CAARS:O-SV and CAARS:S-S), and the Clinical Global Impression - Severity (CGI-S), Sheehan Disability Scale (SDS) and Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q).

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This was a randomized, open-label, comparative, parallel group study designed to demonstrate the noninferiority of once-daily OROS(®) hydromorphone compared with twice-daily sustained-release (SR) oxycodone in subjects with chronic noncancer pain severe enough to require continuous opioid therapy. The core phase (24 weeks) consisted of titration and maintenance periods. This was followed by an optional extension phase (28 weeks), which collected data used to assess long-term safety and efficacy outcomes.

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