Multiple-dose pharmacokinetics and safety of amoxicillin/clavulanate in healthy elderly subjects

2020 ◽  
Vol 58 (11) ◽  
pp. 634-641
Author(s):  
Sang Won Lee ◽  
Yewon Choi ◽  
Kyungho Jang ◽  
Seo Hyun Yoon ◽  
Jae-Yong Chung
Keyword(s):  
Multiple Dose ◽  
Elderly Subjects ◽  
Healthy Elderly ◽  
Amoxicillin Clavulanate ◽  
Multiple Dose Pharmacokinetics ◽  
Healthy Elderly Subjects

Implications of the Study Population in the Early Evaluation of Anticholinesterase Inhibitors for Alzheimer's Disease

1992 ◽  
Vol 26 (9) ◽  
pp. 1118-1122 ◽  
Author(s):  
Neal R. Cutler ◽  
John J. Sramek ◽  
Michael F. Murphy ◽  
Ralph J. Nash
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Multiple Dose ◽  
Elderly Subjects ◽  
Elderly Men ◽  
Double Blind ◽  
Healthy Elderly ◽  
Multiple Dose Study ◽  
Dose Study ◽  
Healthy Elderly Subjects

OBJECTIVE: Velnacrine testing for tolerance and safety in both normal elderly subjects and patients with Alzheimer's disease (AD) is reviewed to illustrate the importance of Phase I trials in the target group as more predictive of safety and tolerance for subsequent multicenter trials than those conducted in healthy elderly subjects. DESIGN: Both a single-dose and a randomized, double-blind, placebo-controlled, ascending, multiple-dose study were performed with healthy, elderly men. In the multiple-dose study, the subjects were randomized to four groups of 14, with 10 subjects receiving velnacrine and 4 receiving placebo. The doses were velnacrine 25 (group 1), 50 (group 2), and 100 mg (group 3), respectively, administered twice daily; group 4 received 100 mg three times daily for 28 days. Blood and urine were collected serially for the pharmacokinetic assessment. With AD patients, 24 subjects were randomly assigned to receive either placebo or velnacrine for 10 days in a double-blind, sequential escalation study in a hospital setting. There were three groups of 8 subjects. Six patients in each group received velnacrine and 2 placebo. The three groups received respective dosages of 450, 300, and 225 mg/d three times daily. Adverse events were closely monitored and recorded. PATIENTS/PARTICIPANTS: The multiple-dose test in healthy elderly men included 56 men, aged 60–74 years. Rigorous screening for any potential complications that could affect absorption, distribution, metabolism, or excretion preceded patient entry in the AD patient study. Patients with a history of major psychiatric, neurologic, and cardiovascular disorders were excluded. The patients ranged in age from 56 to 89 years, and were equally distributed between gender. INTERVENTION: Velnacrine was administered in various doses. MAIN OUTCOME MEASURES: We emphasize the extreme adverse effects encountered in the AD patient group compared with the healthy group. Plasma concentrations of velnacrine over time in both groups are given, as well as the drug's half-life and excretion rates. RESULTS: The tolerable dosage predicted by studies performed in healthy elderly subjects was 300 mg/d. This dosage was not tolerable among the AD patients. A dosage as high as 450 mg/d resulted in a tonic seizure in one patient. The predicted dosage of 300 mg/d produced an adverse effect profile in AD patients that included dizziness, nausea and/or vomiting, headaches, and severe diarrhea. AD patients tolerated a dosage of 225 mg/d. CONCLUSIONS: A velnacrine dosage of 300 mg/d that was tolerated in healthy elderly subjects was not tolerated by AD patients.

Quantitative aspects of glucose production and metabolism in healthy elderly subjects

Diabetes ◽  
1982 ◽  
Vol 31 (3) ◽  
pp. 203-211 ◽  
Author(s):  
J. J. Robert ◽  
J. C. Cummins ◽  
R. R. Wolfe ◽  
M. Durkot ◽  
D. E. Matthews ◽  
...  
Keyword(s):  
Glucose Production ◽  
Elderly Subjects ◽  
Healthy Elderly ◽  
Healthy Elderly Subjects

scholarly journals A Comparison of Divergent Thinking Abilities Between Healthy Elderly Subjects and MCI Patients: Preliminary Findings and Implications

2020 ◽  
Vol 11 ◽  
Author(s):  
Giulia Fusi ◽  
Elena Ferrari ◽  
Marina Zanetti ◽  
Maura Crepaldi ◽  
Carol Bersanini ◽  
...  
Keyword(s):  
Divergent Thinking ◽  
Elderly Subjects ◽  
Healthy Elderly ◽  
Healthy Elderly Subjects

Campodimele Study: Blood Pressure and Heart Rate Pattern in Clinically Healthy Elderly Subjects

1994 ◽  
Vol 11 (6) ◽  
pp. 381-392 ◽  
Author(s):  
P. Cugini ◽  
G. Leone ◽  
P. Lucia ◽  
F. A. Sepe ◽  
A. Pelosio ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Elderly Subjects ◽  
Healthy Elderly ◽  
Heart Rate Pattern ◽  
Healthy Elderly Subjects
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