Clinical Research Directory

Kaempferol Absorption and Pharmacokinetics Evaluation

This study is a multi-site clinical trial designed to evaluate how the body absorbs and processes Kaempferol, a naturally occurring compound found in many plant-based foods. The primary purpose of the study is to measure the pharmacokinetics and biological absorption of Kaempferol in healthy adults. Participants will receive Kaempferol and undergo scheduled blood and urine collections over a short study period. These samples will be used to measure Kaempferol levels in the body and to assess safety and tolerability. In addition, selected biological samples will be analyzed to explore molecular changes associated with Kaempferol exposure using advanced laboratory methods. The study will be conducted at multiple research centers in the United States using a standardized protocol to ensure consistency across sites. The information collected will help improve understanding of how Kaempferol is absorbed and metabolized in humans and will support future research and regulatory evaluation.

Combination Gerotherapeutic Interventions for Healthspan Improvement

This study is a 90-day interventional, randomized, controlled pilot trial exploring multi-modal gerotherapies and their impact on longevity-related outcomes. In this proof-of-concept phase, a small sample size of up to 30 subjects (10 subjects in each arm) will be randomized into one of the three arms: 1) Control, 2) Multi-therapy (B12, Naltrexone, Metformin, and NAD+), or 4) Comprehensive Therapy (Rapamycin, Naltrexone, Metformin, B12, NAD+, GSH, and Infinite Supplement).

L-serine and Strength Training in the Elderly

This study investigates whether taking the amino acid L-serine, either alone or in combination with targeted strength training, can have a positive effect on mental performance, brain function, and physical fitness in older people. Healthy, independent women and men aged 65 to 85 are eligible to participate. Participants will be randomly assigned to one of three groups: placebo, L-serine, or L-serine combined with strength training. Cognitive tests, physical performance tests, and blood and brain tests will be conducted over a period of 48 weeks. The aim is to gain a better understanding of how nutrition and exercise can contribute to healthy aging.

Collagen Peptides and Cellular Aging

The goal of this clinical trial is to learn if daily collagen peptide supplementation can stabilize or lengthen telomeres and improve related markers of cellular aging in adults aged 50-70 years with overweight and low-to-moderate physical activity (healthy volunteers without major chronic disease). Main questions it aims to answer are: Does six months of collagen peptides stabilize or extend telomere length and increase telomerase activity compared with placebo? Are any telomere-related changes associated with lower inflammation, healthier body composition, and better functional health? Researchers will compare collagen as an intervention to a placebo group to see if collagen will influence aging markers. Participants will take collagen peptides or a placebo daily for 24 weeks. They will attend three study visits: one before starting the intervention (T0), one at 3 months (T1), and one at 6 months (T2). At each visit, blood samples will be collected to measure telomere length, telomerase activity, and inflammation/redox markers. Participants will also undergo body composition assessments using bioelectrical impedance, complete functional tests of muscle strength and mobility, and fill out questionnaires on health and vitality.

Iterative Design Trial to Assess Dietary Supplements and Other Aging-targeted Therapies

This is a multi-cohort, open-label, adaptive trial designed to evaluate the safety, tolerability, and biological effects of dietary supplements and other aging-targeted therapies. Cohort 1 is a single-arm, open-label, intrapatient dose-escalation study evaluating the effects of escalating doses of spermidine in 10 participants. Patients will have baseline blood drawn and subsequently start daily administration of spermidine. They will receive capsules for three consecutive 28-day courses with escalating doses of 40mg, 120mg, and 400mg. Subsequent cohorts will evaluate additional agents.

Effectiveness of Microdosed GLP-1 in Improving Health, Quality of Life, and Longevity Measures

The goal of this clinical study has two objectives. The Primary Objective is to evaluate the effectiveness of microdosed GLP-1 receptor agonists in improving measures of health, quality of life, and longevity. The Secondary Objective: To assess the impact of these therapies on weight management practices and metabolic health.

Effectiveness of Alternative Therapies in Maintaining Weight Loss Achieved by GLP-1 Medications Post-Cessation

The goal of this randomized, controlled trial is to evaluate the effectiveness of alternative therapies (metformin alone, with rapamycin, and with low-dose naltrexone) in maintaining weight loss in patients weaning off GLP-1 medications. The main questions it aims to answer are: * Whether the combination of metformin, with or without rapamycin or low-dose naltrexone, will be adequate to maintain the relative weight of individuals gradually discontinuing GLP-1 receptor agonist use. * Whether individuals discontinuing GLP-1 receptor agonist use who instead use a combination of metformin, with or without rapamycin or low-dose naltrexone, will experience less weight regain over the course of six months post-cessation than those who do not use any alternative medications. Researchers will compare the four groups: 1) control, 2) metformin, 3) metformin + rapamycin, and 4) metformin + low-dose naltrexone, to assess changes in the percentage of weight regain, metabolic indicators (e.g., HbA1c, lipid profile), and quality of life PROs, six months after cessation of GLP-1 therapy. Participants will: * Administer the assigned intervention following a dosing and administration protocol provided by the study and medical team. * Complete a medical intake for overall health status, medical history and demographic information, * Complete patient-reported outcomes/surveys and assessments * Complete blood work at baseline and every 16 weeks thereafter to measure CBC, CMP, and standard health biomarker panels (e.g., cholesterol, glucose, creatinine, sodium, potassium). * Share data from health wearables with the research team throughout the study to improve the accuracy of evaluating activity, sleep, heart rate, and other related healthspan measures.

Clinical Evaluation on the Longevity of Glass Ceramic Based Single Tooth Restorations

This retrospective study investigates the longevity of lithium disilicate based glass-ceramic single tooth restorations placed with IPS e.max CAD and IPS e.max Press after a wearing period of more than 15 years. The primary objective is to assess the survival rate of single tooth restorations with IPS e.max CAD and IPS e.max Press after a wearing period of at least 15 years. The secondary objectives are to assess the quality of the single tooth restorations in regard of aesthetic, functional and biological properties.

Longevity Families of the Netherlands

The demographic life expectancy enhancement of the past 150 years imposes an urgent challenge in Western and economically growing societies to stimulate the healthy lifespan that is lagging behind. Families surviving into exceptionally high ages (longevity) in good physical and mental health illustrate that this is physiologically possible. Such families harbor cross generational socio-genetic mechanisms that mediate healthy aging and protection from (multi)morbidity. The purpose of our research is: to identify gene variants associated with healthy aging and protection from (multi)morbidity; to study the social-, environment- and behavioral factors of familial longevity, their role in (multi-)morbidity and its interaction with the genetic component.