Evaluation of AppleX™ Apple Extract on Anti-Inflammatory and Healthy Aging Effects

June 25, 2026 updated by: Nutraland USA, Inc.

A Randomized, Double-Blind, Placebo-Controlled Pilot Study to Evaluate the Anti-Inflammatory and Healthy Aging Effects of AppleX™ Apple Extract (15% Fisetin) in Adults 45-70 Years of Age

The goal of this clinical trial is to learn if AppleX™ Apple Extract can help lower systemic inflammation in adults aged 45-70 with signs of low-grade inflammation. It will also look at the extract's effects on fatigue, joint comfort, and biological aging metrics.

The main questions it aims to answer are:

  • Does taking AppleX™ Apple Extract daily lower high-sensitivity C-reactive protein (hsCRP) levels, a key marker of inflammation in the blood?
  • Does AppleX™ Apple Extract improve participant-reported fatigue and joint comfort?
  • Does the extract slow down biological or epigenetic aging metrics compared to a placebo?

Researchers will compare AppleX™ Apple Extract to a placebo (a look-alike capsule that contains no active ingredients) to see if the apple extract has a measurable anti-inflammatory and healthy aging effect.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

AppleX™ is a whole-apple extract standardized to 15% fisetin, delivering 15 mg of active fisetin within a natural polyphenol matrix of quercetin, chlorogenic acid, and procyanidins. This trial evaluates the physiological effects of continuous, lower-dose daily intake (100 mg/day) over a 24-week period, specifically targeting an aging population sample with mild systemic inflammatory burden.

The study utilizes a fully decentralized clinical trial framework. Biological metrics are collected remotely utilizing home-based, finger-prick dried blood spot (DBS) micro-sampling methodologies to minimize participant burden.

In addition to evaluating systemic inflammation through longitudinal tracking of high-sensitivity C-Reactive Protein (hsCRP), the protocol investigates cellular aging by assessing DNA methylation data. This exploratory analysis utilizes the TruAge testing platform (TruDiagnostic) to evaluate advanced biological clocks, including the DunedinPACE pace-of-aging algorithm and targeted organ-system sub-clocks focused specifically on immune and inflammatory aging profiles.

Study Type

Interventional

Enrollment (Estimated)

70

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • United States
    • California
      • San Francisco, California, United States, 94109
        • Alethios, Inc.
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Age 45-70 years at time of enrollment
  • Meets questionnaire-based inflammatory enrichment criteria (at least 2 of 5 risk factors, per Section 4.2)
  • Non-smoker (no tobacco or nicotine use within 6 months of enrollment)
  • Willing and able to maintain stable diet, exercise habits, and supplement use throughout the 24-week study period
  • No major medication changes planned during the study period
  • Willing to perform home-based DBS collections at T0, T12, and T24
  • Access to a smartphone or computer to complete eConsent and online questionnaires
  • Able to provide informed consent via the Alethios eConsent platform

Exclusion Criteria:

  • Current use of prescription anti-inflammatory medications including NSAIDs (regular use ≥3x/week), corticosteroids, or DMARDs
  • Diagnosis of an autoimmune or inflammatory disease (e.g., rheumatoid arthritis, lupus, IBD, multiple sclerosis)
  • Active or unstable cardiovascular disease requiring medication changes during the study period
  • History of cancer within the past 5 years (except non-melanoma skin cancer)
  • Regular use of supplemental fisetin, quercetin, or resveratrol within 30 days of enrollment
  • Pregnancy, breastfeeding, or planning to become pregnant during the study
  • Known allergy to apple or apple-derived products
  • Body mass index (BMI) >40 kg/m²

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: AppleX™ Group
100 mg whole-apple extract capsule standardized to 15% fisetin, taken once daily with breakfast for 24 weeks.
Dietary supplement: Apple Extract
A whole-apple extract standardized to 15% fisetin within a natural polyphenol matrix of quercetin, chlorogenic acid, and procyanidins. Administered as a 100 mg capsule taken orally once daily with breakfast for 24 weeks.
Other Names:
  • AppleX™
Placebo Comparator: Placebo
An identical look-alike microcrystalline cellulose capsule, taken once daily with breakfast for 24 weeks
Other: Placebo
An identical, matching inactive look-alike capsule containing microcrystalline cellulose. Administered orally once daily with breakfast for 24 weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from Baseline in High-Sensitivity C-Reactive Protein (hsCRP) at Week 24
Time Frame: Baseline (Week 0) and Week 24
Evaluation of systemic inflammation via high-sensitivity C-reactive protein levels quantified from dried blood spot micro-sampling.
Baseline (Week 0) and Week 24

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from Baseline in Self-Reported Vitality and Energy Levels at Week 24
Time Frame: Baseline, Week 12, Week 24
Assessment of participant-reported vitality and energy using the Patient-Reported Outcomes Measurement Information System (PROMIS) questionnaire. Higher scores indicate greater vitality.
Baseline, Week 12, Week 24
Change from Baseline in Self-Reported Fatigue at Week 24
Time Frame: Baseline, Week 12, Week 24
Assessment of physical and mental fatigue using the Multidimensional Fatigue Inventory (MFI-20) questionnaire. Lower scores indicate less fatigue.
Baseline, Week 12, Week 24
Change from Baseline in Self-Reported Joint Comfort at Week 24
Time Frame: Baseline, Week 12, Week 24
Assessment of joint comfort scores captured via standardized visual analog questionnaires.
Baseline, Week 12, Week 24

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Exploratory: Change from Baseline in Epigenetic Aging Metrics at Week 24
Time Frame: Baseline (Week 0) and Week 24
Evaluation of biological age and pace of aging markers derived from blood DNA methylation patterns utilizing the TruAge platform. The primary algorithm of interest is DunedinPACE (evaluating the instantaneous pace of aging). Secondary exploratory metrics evaluated from the same platform assay include OMICm Age (cumulative biological age) and organ-specific biological aging rates (including SYMPHONYAge).
Baseline (Week 0) and Week 24

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Nutraland USA, Inc.

Collaborators

Alethios, Inc.

Investigators

  • Principal Investigator: Dr. Bill Clark, PhD, Natprologix, LLC

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

July 1, 2026

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

February 1, 2027

Study Registration Dates

First Submitted

June 25, 2026

First Submitted That Met QC Criteria

June 25, 2026

First Posted (Actual)

July 1, 2026

Study Record Updates

Last Update Posted (Actual)

July 1, 2026

Last Update Submitted That Met QC Criteria

June 25, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • NLAX-001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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