Research Information Disclosure

Research Information Disclosure

Publication Date: October 2, 2026

Tokyo Relife Clinic conducts the following research studies with the approval of the Tokyo Relife Clinic Ethics Review Committee, in accordance with Japan's "Ethical Guidelines for Life Science and Medical Research Involving Human Subjects."

For studies where consent is marked as "opt-out," we may use standard medical records and leftover samples from regular patient visits. We will not perform any extra tests or treatments for this research. Instead of asking each patient for signed consent, we share the research details on this page.

If patients do not want their data or samples used for research, please contact us using the form or details at the bottom of this page. No reason is required, and declining will not affect regular medical care.


Clinical Study 4: Aging Types Based on Longevity-Related Gene Expression Analysis

Approval Number & Date

TRC-004-01-c
August 7, 2025

Consent Method

Written consent required

Study Purpose

This study analyzes aging-related gene expression and DNA methylation to classify aging into specific types (such as inflammation, oxidative stress, low metabolic function, and low immune function). The goal is to create a model to evaluate preventive treatments.

Eligible

Adults aged 18 and older who received an explanation of the study and gave written consent. This includes patients requesting self-pay testing at Tokyo Relife Clinic and healthy volunteers.

Information to Be Used

• Blood (including peripheral blood mononuclear cells)
• Saliva
• Skin cells
• Oral mucosal cells (mouth cheek cells)
• Basic profile information (such as age and biological sex)
As a general rule, individual test results will not be shared with participants.

Principal Investigator

Yoshiyasu Shinohara, MD, PhD (or Title)
Head of Research Division

Research Period

October 1, 2026 – September 30, 2031

Provision to External Institutions

None


Clinical Study 5: Retrospective Observational Study on the Efficacy and Safety of Adipose-Derived Stem Cell Therapy for Various Diseases

Approval Number & Date

TRC-005-01-a
August 29, 2025

Consent Method

Opt-out
(Public disclosure on this website in place of individual consent)

Study Purpose

This study reviews medical records of patients who received adipose-derived stem cell therapy at Tokyo Relife Clinic. The goal is to evaluate treatment safety and how symptoms changed before and after treatment for different medical conditions.

Eligible

Patients aged 40 to 69 who received adipose-derived stem cell therapy at Tokyo Relife Clinic between January and October 2025, and experienced any of the following:
• Menopausal / Andropause symptoms
• Chronic pain
• Diabetes
• Frailty (Sarcopenia)
• Liver dysfunction
• Cerebrovascular disease (stroke-related conditions)
• Hair thinning
• Osteoarthritis
• Erectile dysfunction (ED)

Information to Be Used

• Age, current medical conditions, and past medical history, treatment and medication details, Symptom evaluation scores, blood test results (routine tests, hormones, oxidative stress markers, etc.), urine test results (routine urinalysis and urinary indole tests), AGEs test results, physical measurements (grip strength and body composition), side effects and adverse events

Principal Investigator

Yoshiyasu Shinohara (Head of Research Division)

Research Period

October 1, 2026 – September 30, 2031

Provision to External Institutions

None


Clinical Study 6: Changes in Cognitive Function, Immune Aging, and Muscle Strength After Intranasal Exosome Administration in Middle-Aged and Older Adults

Approval Number & Date

TRC-006-02-b (February 5, 2026)

Consent Method

• Prospective study: Written consent required
• Retrospective study: Opt-out (public disclosure on this website in place of individual consent)

Study Purpose

This study evaluates the safety of iPSC-derived exosomes given through intranasal administration. It also looks at changes in cognition, immune aging markers, and muscle strength in people who received this treatment.

Eligible

• Prospective study: Adults aged 50 to 80 who received an explanation of the study and gave written consent.
• Retrospective study: Patients aged 50 to 80 who received intranasal iPSC-derived exosome treatment at Tokyo Relife Clinic between October 2025 and late February 2026, and completed health evaluations before and after treatment.

Information to Be Used

• Age, biological sex, medical history, and current/past medications
• Cognitive tests: MMSE, MoCA-J, MIRUDAKE
• Muscle and physical function tests: Grip strength, walking speed, five-times sit-to-stand test, SARC-F questionnaire
• Blood tests: General blood and biochemical tests, CRP, oxidative stress markers, immune cell analysis, cytokine levels, and AGE scan
• Administration details and any reported side effects / adverse events

Principal Investigator

Maki Nakao (General Director)

Research Period

October 1, 2026 – September 30, 2031

Provision to External Institutions

Some sample analyses were previously outsourced to partner testing laboratories in Japan and overseas (including Kenko Life Science Inc. and RayBiotech, Inc. [USA]). No additional samples or personal data will be sent to external institutions for this study.
Study findings may be shared with the XPRIZE competition (an international science and technology award). Only group-level (aggregated) data that cannot identify any individual will be used; no personal or individual data will be shared.


Clinical Study 7: Collection, Storage, and Use of Biological Samples (Blood, Urine, and Adipose-Derived Stem Cells) in Anti-Aging Research

Approval Number & Date

TRC-007-01-c (September 3, 2026)

Consent Method

• New samples: Written consent required
• Existing samples: Opt-out (public disclosure on this website in place of individual consent)

Study Purpose

This study investigates how aging works, focusing on how aging in adipose-derived stem cells relates to age-related conditions. The goal is to help develop new ways to diagnose, prevent, and treat aging.

Eligible

• New samples: Individuals who agree to provide blood, urine, or adipose-derived stem cells for research and give written consent.
• Existing samples: Patients whose leftover samples (including blood, urine, adipose tissue, or other cells collected during regular care at Tokyo Relife Clinic) are currently stored.

Information to Be Used

• The biological samples listed above
• Clinical information (age, biological sex, test results, etc.)
• Laboratory analyses: Gene expression, DNA methylation, proteins and metabolites, cellular aging markers, and stem cell quality evaluations
Note: Existing samples will not be used until 14 days after this notice is published (use begins on or after October 16, 2026).

Principal Investigator

Yoshiyasu Shinohara (Head of Research Division)

Research Period

From Ethics Review Committee approval date to March 31, 2036

Provision to External Institutions

Samples and data may be shared with universities, research institutes, medical centers, and companies in Japan.
Medical records will not be shared with outside recipients.
If samples or data are ever shared with overseas institutions, separate written consent will be obtained in advance.


Clinical Study 8: Validation of Collection Protocols, Quality Standards, and Biological Characteristics of Urine-Derived Stem Cells (USCs and uMSCs)

Approval Number & Date

TRC-008-01-c (September 3, 2026)

Consent Method

Written consent required

Study Purpose

This study tests how reliably stem cells can be collected from urine. The goal is to set quality standards for these cells and better understand their biological characteristics.

Eligible

Healthy adult volunteers aged 20 to 64 who received an explanation of the study and gave written consent.

Information to Be Used

• Urine samples (collected by the participant, usually three times)
• Questionnaire data: Age, biological sex, height, weight, medical history, and current/past medications
Note: No blood samples are collected for this study.

Principal Investigator

Yoshiyasu Shinohara (Head of Research Division)

Research Period

From Ethics Review Committee approval date to March 31, 2036

Provision to External Institutions

Samples and personal data will not be shared with outside institutions. Some specialized tests that cannot be done at Tokyo Relife Clinic may be outsourced to partner laboratories. In these cases, names and any identifying information will never be shared with contractors.


Clinical Study 9: Isolation, Culture Processing, and Quality Assessment of Peripheral Blood-Derived Immune Cells

Approval Number & Date

TRC-009-01-c (September 3, 2026)

Consent Method

Written consent required

Study Purpose

This study evaluates the laboratory methods used at Tokyo Relife Clinic to separate and grow immune cells from blood, as well as the standards used to check their quality.
Note: Cells grown in this study will not be administered to humans.

Eligible

• Adults aged 20 and older who received an explanation of the study and gave written consent
• Patients receiving autologous immune cell therapy at Tokyo Relife Clinic

Information to Be Used

• Blood samples (collected specifically for research from healthy volunteers; leftover blood from regular cell processing used for therapy patients)
• Basic profile information (such as age and biological sex)
• Cell processing and culture records

Principal Investigator

Yoshiyasu Shinohara (Head of Research Division)

Research Period

From Ethics Review Committee approval date to March 31, 2036

Provision to External Institutions

Samples and personal data will not be shared with outside institutions. Some specialized tests that cannot be done at Tokyo Relife Clinic may be outsourced to partner laboratories. In these cases, names and any identifying information will never be shared with contractors.


Clinical Study 10: Efficacy and Safety of Umbilical Cord-Derived Stem Cell Culture Supernatant and Exosomes for Unexplained Symptoms

Approval Number & Date

TRC-010-01-a (September 3, 2026)

Consent Method

Opt-out
(Public disclosure on this website in place of individual consent)

Study Purpose

This study reviews medical records of patients who received intravenous (IV) stem cell culture supernatant or exosomes. The goal is to evaluate and compare the safety and effectiveness of each treatment.

Eligible

Patients aged 30 to 75 who experienced unexplained symptoms for at least one year and received IV stem cell culture supernatant or exosomes during regular care at Tokyo Relife Clinic between April 1, 2024, and September 30, 2025.

Information to Be Used

• Basic profile: Biological sex, age, height, weight, medical history, existing conditions, and current/past treatments and medications
• Clinical tests: Routine blood tests, oxidative stress tests, urinary indole tests, AGEs tests, body composition, and EpiClock test (measures biological age using DNA methylation)
• Questionnaires: Unexplained symptoms survey, PHQ-9 (mood/depression screening), and PHQ-15 (physical symptoms screening)
• Other details: Administration details and any reported side effects / adverse events

Principal Investigator

Principal Investigator:
Yoshiyasu Shinohara (Head of Research Division)
Sub-Investigators:
• Maki Nakao (General Director)
• Hidekazu Yamada (Senior Advisor, Anti-Aging Medicine)

Research Period

October 1, 2026 – September 30, 2031

Provision to External Institutions

None


Clinical Study 11: Efficacy and Safety of Different Stem Cell Culture Supernatants in Aesthetic Dermatology (Three-Group Comparison)

Approval Number & Date

TRC-011-01-b (September 3, 2026)

Consent Method

Opt-out
(Public disclosure on this website in place of individual consent)

Study Purpose

This study compares the safety and cosmetic results of three anti-aging facial treatments: adipose-derived culture supernatant, umbilical cord-derived culture supernatant, and skin-booster (water-light) injections using hyaluronic acid.

Eligible

Women aged 40 to 69 who received any of the treatments listed above for facial aesthetic care at Tokyo Relife Clinic between April 2024 and October 2025.

Information to Be Used

• Patient background information
• Treatment details (type of procedure, number of sessions, and timing)
• Skin test data (VISIA analysis scores, skin moisture and elasticity test results)
• Skin check sheets
• Adverse events (side effects)
Note: Facial photographs will not be used for this study.

Principal Investigator

Yoshiyasu Shinohara (Head of Research Division)

Research Period

October 1, 2026 – September 30, 2031

Provision to External Institutions

None


Common Information for All Studies

Research Institution

TOKYO RELIFE CLINIC
Toraya Ginza Building 6F, 7F & 8F, 7-8-17 Ginza, Chuo-ku, Tokyo 104-0061, Japan

Protection of Personal Information

All samples and data are assigned anonymous research ID codes. Direct identifying information, such as names and addresses, will never be included in the research dataset.
The key code linking these IDs to individual patient names is securely stored by the Principal Investigator in a locked location or in password-protected, access-restricted digital files.

Publication of Research Results

Study results will be presented at medical conferences and published in scientific journals. No personal information that could identify any individual will ever be published.

Request to Stop Use of Data or Samples (Opt-Out)

Requests to opt out may be made by the patient or by an authorized family member or legal representative.
You can submit a request by providing the "Participation Refusal / Opt-Out Request Form," or simply by calling or emailing us.
Once a request is received, the patient's data and samples will be promptly removed from the study. However, data that has already been analyzed, presented at conferences, or published in papers cannot be withdrawn.
Note: For studies where written consent was previously signed, consent may be withdrawn at any time.

Review of Research Protocols

Research protocols and study materials can be reviewed upon request, as long as the review does not violate anyone's personal privacy or disrupt the progress of the study.

Contact Information

Research Office, TOKYO RELIFE CLINIC
• Phone: +81-120-660-329 (Toll-Free in Japan: 0120-660-329)
• Email: info@tokyorelife.com
• Office Hours: 10:00 – 19:00 (JST)

The contents of this page are updated as needed, including whenever study details or approvals are revised.


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