NCT04109911

Brief Summary

The investigators conduct a randomized, double-blind, placebo-controlled study to investigate the effects of the fermented oyster extract on muscle strength, muscle mass, and muscle function in healthy adults for 12 weeks.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
54

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Sep 2019

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 25, 2019

Completed
2 days until next milestone

First Submitted

Initial submission to the registry

September 27, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

October 1, 2019

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 4, 2020

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2020

Completed
Last Updated

April 26, 2022

Status Verified

April 1, 2022

Enrollment Period

7 months

First QC Date

September 27, 2019

Last Update Submit

April 23, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • muscle strength

    the peak torque/body weight at 60°/s knee extension

    12 weeks

Study Arms (2)

Fermented oyster extract group

EXPERIMENTAL

This group takes fermented oyster extract for 12 weeks

Dietary Supplement: Fermented oyster extract

Placebo group

PLACEBO COMPARATOR

This group takes placebo for 12 weeks

Dietary Supplement: Placebo

Interventions

Fermented oyster extractDIETARY_SUPPLEMENT

Fermented oyster extract 1,200 mg/day for 12 weeks

Fermented oyster extract group
PlaceboDIETARY_SUPPLEMENT

Placebo

Placebo group

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • \<110% of the standard lean body mass as measured using the body composition analyzer
  • Body-mass index (BMI) ranging from 18.5 to 30.0 kg/m2

You may not qualify if:

  • Abnormal liver or renal function (i.e., serum aminotransferase activity \> 60 IU/L and serum creatinine concentrations \> 1.2 mg/dL)
  • Diabetes (diagnosed clinically or fasting glucose level \> 126 mg/dL)
  • History of fracture during the previous year
  • Uncontrolled hypertension
  • History of serious cardiac disease such as angina or myocardial infarction
  • History of gastrectomy
  • History of medication for psychiatric disease
  • Administration of oriental medicine including herbs within the past 4 weeks Evidence of relatively high skeletal mass (more than 110% of the standard lean body mass as measured using the body composition analyzer

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Pusan National University Yangsan Hospital

Yangsan, Gyeungsangnam-do, 50612, South Korea

Location

Related Publications (1)

  • Lee YL, Lee SY. Effect of fermented oyster (Crassostrea gigas) extracts and regular walking on muscle strength and mass in older adults with relatively low muscle mass: A randomized controlled trial. Front Nutr. 2022 Jul 25;9:935395. doi: 10.3389/fnut.2022.935395. eCollection 2022.

Study Officials

  • Sang Yeoup Lee, MD

    Pusan National University Yangsan Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

September 27, 2019

First Posted

October 1, 2019

Study Start

September 25, 2019

Primary Completion

May 4, 2020

Study Completion

December 31, 2020

Last Updated

April 26, 2022

Record last verified: 2022-04

Data Sharing

IPD Sharing
Will not share

Locations