Aging Clinical Trial - Impact of Metformin on Immunity

Status Suspended

Clinical Trial Summary

To determine whether metformin (MET) can improve the immune response to the pneumococcal conjugate vaccine (PCV-13) in older adults.

Clinical Trial Description

The objective of this study is to determine whether metformin (MET) can improve the immune response to the pneumococcal conjugate vaccine (PCV-13) in older adults, and if this effect is mediated by the gut microbiota. The proposed research projects will provide the necessary pilot data for future, more definitive, studies that will evaluate the impact of immunomodulatory therapies, such as MET therapy, on the aging immune system. The specific aims are: Aim 1. Compare PCV13 vaccine response in elderly adults (≥63 years of age) treated with MET vs. placebo. For this study, 50 elderly volunteers will be enrolled and randomly assigned to receive MET or placebo. The hypothesis that MET can improve vaccine responsiveness by measuring serotype-specific IgG concentrations before and 30 days after PCV13 administration will be tested. Aim 2. Determine whether the frequencies of immunophenotypes differ between elderly adults treated with MET vs. placebo. The mechanisms of MET's effect on the immune system by comparing immunophenotypes of MET and placebo groups between baseline and prior to PCV13 and between baseline and 30 days after PCV13 administration will be explored. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03713801
Study type	Interventional
Source	The University of Texas Health Science Center at San Antonio
Contact
Status	Suspended
Phase	Phase 1
Start date	January 14, 2019
Completion date	July 2026

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT05433233` - Effects of Lifestyle Walking on Blood Pressure in Older Adults With Hypertension	N/A
Recruiting	`NCT06032065` - SMART Exercise for PAD	Phase 3
Active, not recruiting	`NCT05293730` - Trial of the Impact of the Electronic Frailty Integrated With Social Needs	N/A
Recruiting	`NCT03932162` - Gene Expression Changes In Young and Geriatric Skin	Early Phase 1
Completed	`NCT04064528` - Effects of Age on Amino Acid Delivery to Tendon	N/A
Active, not recruiting	`NCT03366129` - Blood-Brain Barrier Disruption in People With White Matter Hyperintensities Who Have Had a Stroke
Completed	`NCT06029920` - Influence of Overground Walking on Biomarkers, Cognitive Function, and Quality of Life in Elderly With Mild Cognitive Impairment	N/A
Recruiting	`NCT05543980` - Leg Heat Therapy in Elderly Individuals	Phase 2
Recruiting	`NCT05566938` - Study to Design a Precision Nutrition Strategy at a Group Level in the Elderly	N/A
Completed	`NCT04894929` - Comprehensive Geriatric Assessment in the Monitoring of Functional Improvement	N/A
Not yet recruiting	`NCT06071130` - Emotion, Aging, and Decision Making	N/A
Enrolling by invitation	`NCT04641663` - Multi-target Dietary Supplement Tolerability in an Aging Population (MTDSST)	N/A
Completed	`NCT04088006` - The Evaluation of Efficacy and Safety of Hyaluronic Acid Injection on Skin Moisturization and Elasticity	N/A
Completed	`NCT03695081` - Patient Pathway Pharmacist - Optimal Drug-related Care	N/A
Recruiting	`NCT05424263` - Acetate and Age-associated Arterial Dysfunction	Phase 2
Completed	`NCT05601713` - Mitigating Heat-induced Physiological Strain and Discomfort in Older Adults Via Lower Limb Immersion and Neck Cooling	N/A
Completed	`NCT04551339` - Zinc Versus Multivitamin Micronutrient Supplementation in the Setting of COVID-19	N/A
Recruiting	`NCT04997577` - Speech Perception and High Cognitive Demand	N/A
Completed	`NCT05922475` - Efficacy of Pre-sleep or Post-exercise Protein During 12 Weeks of Resistance Exercise Training	N/A
Completed	`NCT04015479` - Peanut Protein Supplementation to Augment Muscle Growth and Improve Markers of Muscle Quality and Health in Older Adults	N/A