Protocol summary

Study aim
Determining the effects of 12 Weeks Resistance Training with Vitamin E Supplementation on Aminotransferase Enzymes, CTRP2/CTRP9, Insulin Resistance, and Atherogenic Index of Plasma in Men with non-alcoholic fatty liver: A Double-blind, Randomized, Placebo-controlled Trial
Design
A randomized, double-blind, placebo-controlled, phase 3 clinical trial was conducted on 40 patients with non-alcoholic fatty liver disease using factorial groups and simple individual randomization method with sealed envelopes.
Settings and conduct
The present study aimed to evaluate the effects of resistance training and vitamin E supplementation on patients with non-alcoholic fatty liver disease. A group of 40 subjects residing in Kermanshah city were randomly assigned to one of four groups and underwent a 12-week intervention involving exercise and either vitamin E supplements or a placebo. Body composition evaluations, ultrasound scans, and blood tests were conducted before and after the intervention. The researcher and subjects were blinded to the type of supplement administered.
Participants/Inclusion and exclusion criteria
- The absence of diabetes, cirrhosis, hepatitis, and prostate diseases - Not taking drugs that increase the levels of transaminases - Body mass index of 25 kg/m2 or more - Not consuming more than 30 g of alcohol per day for 3 consecutive months in the past 5 years - Not engaging in regular sports activities in the 6 months before the study - Diagnosis of fatty liver through ultrasound (at least first-degree steatosis)
Intervention groups
Resistance training + vitamin E group; Resistance training + placebo group; Vitamin E group; Placebo group.
Main outcome variables
C1q/TNF-Related Protein-2; C1q/TNF-Related Protein-9; Insulin resistance and sensitivity index; Atherogenic index of plasma; AST enzyme; ALT enzyme.

General information

Reason for update
Acronym
NAFLD
IRCT registration information
IRCT registration number: IRCT20220601055056N1
Registration date: 2023-12-21, 1402/09/30
Registration timing: retrospective

Last update: 2023-12-21, 1402/09/30
Update count: 0
Registration date
2023-12-21, 1402/09/30
Registrant information
Name
Irfan Varmazyar
Name of organization / entity
Razi University of Kermanshah
Country
Iran (Islamic Republic of)
Phone
+98 83 4843 2040
Email address
irfan.varmazyar@gmail.com
Recruitment status
Recruitment complete
Funding source
Expected recruitment start date
2022-10-01, 1401/07/09
Expected recruitment end date
2022-11-30, 1401/09/09
Actual recruitment start date
2022-10-01, 1401/07/09
Actual recruitment end date
2022-11-26, 1401/09/05
Trial completion date
2023-03-15, 1401/12/24
Scientific title
Effects of 12 Weeks Resistance Training with Vitamin E Supplementation on Aminotransferase Enzymes, CTRP2/CTRP9, Insulin Resistance and Sensitivity, and Atherogenic Index of Plasma in Men with non-alcoholic fatty liver: A Double-blind, Randomized, Placebo-controlled Trial
Public title
Effects of Resistance Training with Vitamin E Supplementation on Men with Non-Alcoholic Fatty Liver Disease
Purpose
Treatment
Inclusion/Exclusion criteria
Inclusion criteria:
Lack of suffering from diabetes, cirrhosis, hepatitis B, hepatitis C, autoimmune hepatitis, hemochromatosis, Wilson's disease, AIDS, and prostate diseases Lack of regular use of drugs that increase transaminase levels or cause NAFLD.(such as amiodarone, tamoxifen, irinotecan, aspirin, glucocorticoids, etc.) Body mass index equal to or more than 25 kilogram/meter square Lack of alcohol consumption exceeding 30 g/day for at least 3 consecutive months in the last 5 years Lack of regular physical activity participation in the last 6 months Lack of weight gain or weight loss fluctuations of 5 kg or more in the last 3 months Fatty liver diagnosis by ultrasonography (Grade 1 at least) Age 18-45 years
Exclusion criteria:
Having cardiovascular, kidney, and respiratory diseases Having joint-muscular injuries in the exercise groups Using medications to treat fatty liver, such as Livergol, vitamin E, and vitamin D, regularly
Age
From 18 years old to 45 years old
Gender
Male
Phase
3
Groups that have been masked
  • Participant
  • Investigator
Sample size
Target sample size: 48
Actual sample size reached: 40
Randomization (investigator's opinion)
Randomized
Randomization description
For this study, a simple randomization method was employed as follows: -For a 40-patient trial, you will need 40 identical, opaque, letter-sized envelopes, 40 sheets of standard-size paper, and a Tupperware-style plastic container large enough to hold all 40 envelopes. -To start the experiment, we divided the 40 sheets of standard-size paper into 4 groups of 10. we then labeled each group with an intervention type as follows: Treatment 1 (exercise + A supplement), Treatment 2 (exercise + B supplement), Treatment 3 (A supplement), and Treatment 4 (B supplement). -We prepared envelopes for different types of treatments in the following way: Firstly, we wrote the type of treatment on each set of 10 papers. Then, we folded the papers and placed them inside the envelopes. Finally, we sealed the envelopes and kept each set's envelopes separately without writing anything on them. -To randomize the envelopes, they were shuffled thoroughly as if they were a deck of cards. Then, a unique number ranging from 1 to 40 was written on each envelope, respectively. After that, the envelopes were placed in a plastic container that resembled a Tupperware box. The subjects were assigned an envelope based on the numerical order, according to their recourse order. This determined the type of intervention they received.
Blinding (investigator's opinion)
Double blinded
Blinding description
The pharmaceutical company was requested to label the type of supplement as either A or B, without revealing which substance each letter represented until the end of the intervention period. This was considered during randomization and the sheets were labeled using the letters A and B instead of writing the type of supplement received (vitamin E or placebo) on them. For instance, the intervention group could be exercise + supplement A.
Placebo
Used
Assignment
Factorial
Other design features

Secondary Ids

empty

Ethics committees

1

Ethics committee
Name of ethics committee
Research ethics committee of Razi University of Kermanshah
Street address
Razi University, Daneshgah Blvd, Taq-e Bostan Ave
City
Kermanshah
Province
Kermanshah
Postal code
6714414971
Approval date
2022-07-24, 1401/05/02
Ethics committee reference number
IR.RAZI.REC.1401.030

Health conditions studied

1

Description of health condition studied
Non-alcoholic fatty liver disease
ICD-10 code
K75.81
ICD-10 code description
Nonalcoholic steatohepatitis (NASH)

Primary outcomes

1

Description
C1q/TNF-Related Protein-2 (CTRP2)
Timepoint
Before & after the intervention
Method of measurement
Elisa method using human CTRP2 kit in accordance with the manufacturer’s instructions

2

Description
C1q/TNF-Related Protein-9 (CTRP9)
Timepoint
Before & after the intervention
Method of measurement
Elisa method using human CTRP9 kit in accordance with the manufacturer’s instructions

3

Description
Insulin resistance and sensitivity index
Timepoint
Before & after the intervention
Method of measurement
Using homeostasis model assessment of insulin resistance index (HOMA-IR) and quantitative insulin sensitivity check index (QUICKI)

4

Description
Atherogenic index
Timepoint
Before & after the intervention
Method of measurement
Using the atherogenic index of plasma (AIP)

5

Description
Aspartate aminotransferase enzyme (AST)
Timepoint
Before & after the intervention
Method of measurement
Using SGOT kit and automatic analyzers

6

Description
Alanine aminotransferase enzyme (ALT)
Timepoint
Before & after the intervention
Method of measurement
Using SGPT kit and automatic analyzers

Secondary outcomes

1

Description
Body weight
Timepoint
Before and after the intervention
Method of measurement
Digital scale

2

Description
Body mass index (BMI)
Timepoint
Before and after the intervention
Method of measurement
Body mass divided by the square of the body height

3

Description
Body fat percent
Timepoint
Before and after the intervention
Method of measurement
Bioelectrical impedance method using body composition analyzer device

4

Description
The waist–hip ratio (WHR)
Timepoint
Before and after the intervention
Method of measurement
Waist measurement divided by hip measurement

5

Description
White blood cell count
Timepoint
Before and after the intervention
Method of measurement
Using automated devices

6

Description
Lipid profile
Timepoint
Before and after the intervention
Method of measurement
Using relevant kits and automated analyzers

7

Description
Fasting blood insulin
Timepoint
Before and after the intervention
Method of measurement
Elisa method using human insulin kit in accordance with the manufacturer’s instructions

8

Description
Fasting Blood Sugar
Timepoint
Before and after the intervention
Method of measurement
Using glucose kit and automated analyzers

Intervention groups

1

Description
Intervention group: resistance training (8 exercises of the upper and lower body; 12 weeks with a frequency of 3 sessions per week; intensity of 60-80% of one maximum repetition; 8-12 repetitions in a set; 60-90 seconds of rest between each set and movement) with Vitamin E usage (12 weeks of taking vitamin E soft gel; daily dose of 800 international units, which was taken in two doses of 400 units with dinner and lunch)
Category
Treatment - Other

2

Description
Intervention group: resistance training (similar to intervention 1) with placebo (12 weeks of taking a placebo similar to vitamin E soft gel in terms of shape, size, color, and weight, which was consumed twice a day with lunch and dinner; the composition of the placebo was oral paraffin)
Category
Treatment - Other

3

Description
Intervention group: Vitamin E usage (similar to intervention 1)
Category
Treatment - Drugs

4

Description
Control group: Placebo usage (similar to intervention 2)
Category
Placebo

Recruitment centers

1

Recruitment center
Name of recruitment center
Razi University of Kermanshah
Full name of responsible person
Irfan Varmazyar
Street address
Razi University, Daneshgah Blvd, Taq-e Bostan Ave
City
Kermanshah
Province
Kermanshah
Postal code
6714414971
Phone
+98 83 3427 7605
Email
info@razi.ac.ir
Web page address
https://razi.ac.ir/

Sponsors / Funding sources

1

Sponsor
Name of organization / entity
Razi University of Kermanshah
Full name of responsible person
Farzaneh Gandomi
Street address
Razi University, Daneshgah Blvd, Taq-e Bostan Ave
City
Kermanshah
Province
Kermanshah
Postal code
۶۷۱۴۴۱۴۹۷۱
Phone
+98 83 3427 7605
Email
info@razi.ac.ir
Web page address
https://razi.ac.ir/
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Razi University of Kermanshah
Proportion provided by this source
10
Public or private sector
Public
Domestic or foreign origin
Domestic
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
Academic

Person responsible for general inquiries

Contact
Name of organization / entity
Razi University of Kermanshah
Full name of responsible person
Irfan Varmazyar
Position
Graduate student
Latest degree
Bachelor
Other areas of specialty/work
Applied Exercise Physiology
Street address
Physical Education and Sports Science College, Razi University, Razi Blvd, Taq-e Bostan Ave
City
Kermanshah
Province
Kermanshah
Postal code
۶۷۱۴۴۱۴۹۷۱
Phone
+98 83 3427 7605
Email
erfan241998@gmail.com
Web page address

Person responsible for scientific inquiries

Contact
Name of organization / entity
Razi University of Kermanshah
Full name of responsible person
Amir Abbas Monazzami
Position
Associate Professor
Latest degree
Ph.D.
Other areas of specialty/work
Applied Exercise Physiology
Street address
Physical Education and Sports Science College, Razi University, Razi Blvd, Taq-e Bostan Ave
City
Kermanshah
Province
Kermanshah
Postal code
6714414971
Phone
+98 83 3427 7605
Email
MONAZZAMI.AMIRABBAS@gmail.com

Person responsible for updating data

Contact
Name of organization / entity
Razi University of Kermanshah
Full name of responsible person
Irfan Varmazyar
Position
Graduate Student
Latest degree
Bachelor
Other areas of specialty/work
Applied Exercise Physiology
Street address
Physical Education and Sports Science College, Razi University, Razi Blvd, Taq-e Bostan Ave
City
Kermanshah
Province
Kermanshah
Postal code
6714414971
Phone
+98 83 3427 7605
Email
erfan241998@gmail.com

Sharing plan

Deidentified Individual Participant Data Set (IPD)
Yes - There is a plan to make this available
Study Protocol
Yes - There is a plan to make this available
Statistical Analysis Plan
Yes - There is a plan to make this available
Informed Consent Form
Yes - There is a plan to make this available
Clinical Study Report
Yes - There is a plan to make this available
Analytic Code
Yes - There is a plan to make this available
Data Dictionary
Yes - There is a plan to make this available
Title and more details about the data/document
The personal information of the study participants can be shared once it has been de-identified. Any identifying information will be removed to protect personal privacy.
When the data will become available and for how long
The access period begins six months after the results have been published.
To whom data/document is available
This resource will only be accessible to researchers who are affiliated with academic and scientific institutions.
Under which criteria data/document could be used
The use of data is permitted only for conducting similar scientific research and not for the personal gain of individuals or specific groups.
From where data/document is obtainable
Full name: Irfan Varmazyar Way of communication: irfan26398@gmail.com
What processes are involved for a request to access data/document
Sending the request to the mentioned email; Checking the person's request; Sending data within 5-7 days if they have convincing conditions.
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