Intermittent FastingNCT04877314
The Immun Status Changes Due to Intermittent Fasting
A study testing Intermittent fasting in people with Intermittent Fasting, run by Istanbul Training and Research Hospital at 1 site in Turkey (Türkiye).
Trial summary
Positive effects of calorie restriction on quality of life and diseases are reported. Intermittent fasting, one of the calorie restriction methods, has been shown to be beneficial for health with many metabolic effects, not just calorie restriction. Read more about this study
- Who is it for?
- Ages 18 to 80 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Intermittent Fasting
- What is being tested?
- Intermittent fasting
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 20 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 13 Apr 2021to 15 Jun 2021
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 80 years
- Men only
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Bady mass index should be between 25-30
- Male
Who cannot join
- Diabetes patients,
- Immune deficiency history,
- Cancer patients,
- Individuals who did not agree to participate in the study
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Istanbul Training and Research Hospital
Istanbul, 34098
About this study
Official title: The Effect of Intermittent Fasting on Immune System
Positive effects of calorie restriction on quality of life and diseases are reported. Intermittent fasting, one of the calorie restriction methods, has been shown to be beneficial for health with many metabolic effects, not just calorie restriction. Preclinical studies show the disease-modifying effects of intermittent fasting in animal models on a wide variety of chronic disorders, including obesity, diabetes, cardiovascular disease, cancers, and neurodegenerative brain diseases. There are very few studies evaluating the effects of intermittent fasting on the immune system, and only TNFα, IL6 and IL10 cytokines were evaluated in these studies to evaluate the immune system. In this study, we aimed to evaluate the conditions of inflammatory markers in peripheral blood before and after intermittent fasting period in overweight volunteers with a Body Mass Index between 25 and 30. Volunteers will have intermittent fasting for 3 weeks, which conforms to the 16-hour fasting and 8-hour meal format.
Read the detailed description
In a 1997 article by Weindruch and Sohal, they reported that reducing food availability (calorie restriction) throughout life has significant effects on aging and lifespan in animals. There are many modalities for calorie restriction, one of which is intermittent fasting. Intermittent fasting involves having little or no energy intake during a certain period of the day, then free intake of energy for the rest of the day. Some of the modalities applied in this context can be listed as 12 hours fasting-12 hours eating, 16 hours fasting-8 hours eating, 20 hours fasting-4 hours eating. Studies in animals and humans show that most of the health benefits of intermittent fasting are not just the result of decreased free radical production or weight loss. Instead, intermittent fasting elicits cellular responses that can adapt to improve glucose regulation between and within organs, increase stress resistance, and suppress inflammation. During intermittent fasting, cells activate pathways that increase their defenses against oxidative and metabolic stress and remove or repair damaged molecules.Preclinical studies show the disease-modifying effects of intermittent fasting in animal models on a wide variety of chronic disorders, including obesity, diabetes, cardiovascular disease, cancers, and neurodegenerative brain diseases . Periodic opening and closing of metabolism with intermittent fasting not only provides the ketones necessary for cells to use during the fasting period, but also elicits highly regulated systemic and cellular responses to increase mental and physical performance and disease resistance.
There are very few studies evaluating the effects of intermittent fasting on the immune system, and only TNFα, IL6 and IL10 cytokines were evaluated in these studies to evaluate the immune system. In one of these studies, it was reported that proinflammatory cytokines of TNFα, IL6, which were measured after intermittent fasting for 30 days for 14 hours, decreased significantly.
In this study, the investigators aimed to evaluate the effect of 16-hour fasting and 8-hour intermittent fasting application on overweight volunteers with a Body Mass Index of 25-30 for inflammatory markers in peripheral blood .
- Conditions
- Intermittent Fasting
- Being tested
- Intermittent fasting
- Keywords
- Cytokine, Intermittent fasting
- Medical subject headings
- Intermittent Fasting
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Intermittent fastingOther
30 overweight male volunteers who will have 3 weeks intermittent fasting which has 16 hours fasting and 8 hours eating in a day period.
| Study group | Role | What they receive |
|---|---|---|
| Intermittent fasting | Experimental | Not described Receives: Other: Intermittent fasting |
What is being measured
The primary outcome is the main question the study is designed to answer.
Cytokine levels
IL1, IL6, TNFα, IL10 cytokine levels
Measured: 3 weeks
Secondary outcomes (1)
Demographic values
Weight as kilograms, Height as meters
Measured: 3 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 May 2021
- Study start13 Apr 2021
- Primary completion5 May 2021
- Study completion15 Jun 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Intermittent FastingStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- Cytokine levels before and after intermittent fasting period for 3 weeks
- Masking
- None (open label)
- Enrolment
- 20 participants (actual)
Sponsor and investigators
- Lead sponsor
- Istanbul Training and Research Hospital
- Sponsor type
- Other government
- Responsible party
- Principal investigator, Ufuk Oguz Idiz, Istanbul Training and Research Hospital
- Investigators
- Ufuk O Idiz, Assoc.Prof., Principal investigator, Istanbul Training and Research Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04877314
- Sponsor's protocol ID
- Intermittent fasting immune
- Status last verified
- Jun 2022
- First submitted
- 5 May 2021
- Last updated
- 2 Jun 2022
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: If the study complete, we could share
Publications
Weindruch R, Sohal RS. Seminars in medicine of the Beth Israel Deaconess Medical Center. Caloric intake and aging. N Engl J Med. 1997 Oct 2;337(14):986-94. doi: 10.1056/NEJM199710023371407. No abstract available.
PubMed 9309105Panda S. Circadian physiology of metabolism. Science. 2016 Nov 25;354(6315):1008-1015. doi: 10.1126/science.aah4967.
PubMed 27885007Di Francesco A, Di Germanio C, Bernier M, de Cabo R. A time to fast. Science. 2018 Nov 16;362(6416):770-775. doi: 10.1126/science.aau2095.
PubMed 30442801
Study at a glance
From the registry record, last updated by the sponsor on 2 Jun 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Intermittent Fasting on Immune System
- ClinicalTrials.gov ID
- NCT04877314
- Acronym / sponsor ID
- Intermittent fasting immune
- Conditions
- Intermittent Fasting
- Keywords
- Cytokine, Intermittent fasting
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 20 participants (actual)
- Lead sponsor
- Istanbul Training and Research HospitalOther government
- Study start
- 13 Apr 2021 (actual)
- Primary completion
- 5 May 2021 (actual)
- Study completion
- 15 Jun 2021 (actual)
- First posted
- 7 May 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Positive effects of calorie restriction on quality of life and diseases are reported. Intermittent fasting, one of the calorie restriction methods, has been shown to be beneficial for health with many metabolic effects, not just calorie restriction. Preclinical studies show the disease-modifying effects of intermittent fasting in animal models on a wide variety of chronic disorders, including obesity, diabetes, cardiovascular disease, cancers, and neurodegenerative brain diseases. There are very few studies evaluating the effects of intermittent fasting on the immune system, and only TNFα, IL6 and IL10 cytokines were evaluated in these studies to evaluate the immune system. In this study, we aimed to evaluate the conditions of inflammatory markers in peripheral blood before and after intermittent fasting period in overweight volunteers with a Body Mass Index between 25 and 30. Volunteers will have intermittent fasting for 3 weeks, which conforms to the 16-hour fasting and 8-hour meal format.
Detailed description
In a 1997 article by Weindruch and Sohal, they reported that reducing food availability (calorie restriction) throughout life has significant effects on aging and lifespan in animals. There are many modalities for calorie restriction, one of which is intermittent fasting. Intermittent fasting involves having little or no energy intake during a certain period of the day, then free intake of energy for the rest of the day. Some of the modalities applied in this context can be listed as 12 hours fasting-12 hours eating, 16 hours fasting-8 hours eating, 20 hours fasting-4 hours eating. Studies in animals and humans show that most of the health benefits of intermittent fasting are not just the result of decreased free radical production or weight loss. Instead, intermittent fasting elicits cellular responses that can adapt to improve glucose regulation between and within organs, increase stress resistance, and suppress inflammation. During intermittent fasting, cells activate pathways that increase their defenses against oxidative and metabolic stress and remove or repair damaged molecules.Preclinical studies show the disease-modifying effects of intermittent fasting in animal models on a wide variety of chronic disorders, including obesity, diabetes, cardiovascular disease, cancers, and neurodegenerative brain diseases . Periodic opening and closing of metabolism with intermittent fasting not only provides the ketones necessary for cells to use during the fasting period, but also elicits highly regulated systemic and cellular responses to increase mental and physical performance and disease resistance.
There are very few studies evaluating the effects of intermittent fasting on the immune system, and only TNFα, IL6 and IL10 cytokines were evaluated in these studies to evaluate the immune system. In one of these studies, it was reported that proinflammatory cytokines of TNFα, IL6, which were measured after intermittent fasting for 30 days for 14 hours, decreased significantly.
In this study, the investigators aimed to evaluate the effect of 16-hour fasting and 8-hour intermittent fasting application on overweight volunteers with a Body Mass Index of 25-30 for inflammatory markers in peripheral blood .
Study design
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- Cytokine levels before and after intermittent fasting period for 3 weeks
| Arm | Type | Receives |
|---|---|---|
| Intermittent fasting | Experimental | Other: Intermittent fasting |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Bady mass index should be between 25-30
- Male
Key exclusion criteria (4 listed)
- Diabetes patients,
- Immune deficiency history,
- Cancer patients,
- Individuals who did not agree to participate in the study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Intermittent fasting30 overweight male volunteers who will have 3 weeks intermittent fasting which has 16 hours fasting and 8 hours eating in a day period. | Other | Intermittent fasting |
Primary outcome
Cytokine levels
Time frame: 3 weeks
IL1, IL6, TNFα, IL10 cytokine levels
1 secondary outcome
Demographic values
Time frame: 3 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Jun 2022.
- Background: PubMed 9309105Weindruch R, Sohal RS. Seminars in medicine of the Beth Israel Deaconess Medical Center. Caloric intake and aging. N Engl J Med. 1997 Oct 2;337(14):986-94. doi: 10.1056/NEJM199710023371407. No abstract available.
- Background: PubMed 27885007Panda S. Circadian physiology of metabolism. Science. 2016 Nov 25;354(6315):1008-1015. doi: 10.1126/science.aah4967.
- Background: PubMed 30442801Di Francesco A, Di Germanio C, Bernier M, de Cabo R. A time to fast. Science. 2018 Nov 16;362(6416):770-775. doi: 10.1126/science.aau2095.
- Individual participant dataSharing planned: No. If the study complete, we could share
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Ufuk O Idiz, Assoc.Prof. principal investigator
Istanbul Training and Research Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Intermittent fasting in people with Intermittent Fasting, run by Istanbul Training and Research Hospital at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 2 Jun 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Cytokine levels (time frame: 3 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04877314, which also lists 3 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jun 2022.