Consensus DevelopmentFTNCT05668156
Finding Consensus in Fasting Terminology
An observational study of Consensus Development, run by Charite University, Berlin, Germany at 1 site in Germany.
Trial summary
A consensus-based decision making process on fasting terminology will be conducted using the Delphi technique. To this aim, experts around the world are invited. Read more about this study
- Who is it for?
- Any ageHealthy volunteers can take part
- Conditions the study is for
- Consensus Development
- What is being tested?
- Consensus Decision Making
- How many people
- 38 participants
- Where
- 1 siteGermany
- Study dates
- 1 Feb 2022to 1 Aug 2023
- Phase
- Observational
- 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 Any age
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Study population: clinicians or scientists
Who may be able to join
- clinicians or scientists with at least 5 peer-reviewed publications on fasting or
- at least one peer-reviewed publication and 5 years of clinical experience with fasting
Who cannot join
- not more than 2 experts from one institution are allowed to participate
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Defining Fasting: Finding Common Ground Using the Delphi Method
A consensus-based decision making process on fasting terminology will be conducted using the Delphi technique. To this aim, experts around the world are invited.
Read the detailed description
The consensus-based decision making process on fasting terminology will include a maximum of five rounds of questionnaires that experts are invited to complete online using a pseudonym. Prof. Dr. med. Michalsen's department has prepared rough definitions of key terms for the questionnaire to be evaluated by the experts. These terms should serve as a starting point for the discussion. After each questionnaire round the experts' comments are reviewed by the project team and a new questionnaire with the suggested modifications from the previous round will be sent to the experts.
If consensus can't be reached by round three, a live-online-discussion will be held to facilitate the further proceedings.
The results are to be published in a peer-reviewed journal; individual statements will not be shared in the publication.
- Conditions
- Consensus Development
- Being tested
- Consensus Decision Making
- Keywords
- consensus, fasting, fasting terminology, therapeutic fasting, Delphi, Delphi method, decision-making, intermittent fasting, periodic fasting, prolonged fasting, religious fasting, intermittent dry fasting, caloric restriction, diet, nutrition
- Medical subject headings
- Fasting, Intermittent Fasting
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Consensus Decision MakingOther
Consensus-based decision-making process, where experts are asked to comment definitions of terms used for fasting interventions
What is being measured
The primary outcome is the main question the study is designed to answer.
Definitions of fasting regimens
Definitions of fasting regimen (qualitative research) with max. five survey rounds and potentially one online discussion panel
Measured: repetition of the survey until consensus is reached, max. 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Dec 2022
- Study start1 Feb 2022
- Primary completion1 Aug 2023
- Study completion1 Aug 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Consensus DevelopmentStudies of the same condition, open and under way.
- More trials run by Charite University, Berlin, GermanyThe sponsor's other registered studies.
- 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
- Observational
- Observational model
- Other
- Time perspective
- Other
- Enrolment
- 38 participants (actual)
Sponsor and investigators
- Lead sponsor
- Charite University, Berlin, Germany
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Andreas Michalsen, Charite University, Berlin, Germany
- Investigators
- Andreas Michalsen, Prof. Dr., Principal investigator, Charite University, Berlin, Germany
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05668156
- Sponsor's protocol ID
- Delphi
- Acronym
- FT
- Status last verified
- Dec 2023
- First submitted
- 14 Jan 2022
- Last updated
- 29 Dec 2023
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 29 Dec 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Defining Fasting: Finding Common Ground Using the Delphi Method
- ClinicalTrials.gov ID
- NCT05668156
- Acronym / sponsor ID
- FT / Delphi
- Conditions
- Consensus Development
- Keywords
- consensus, fasting, fasting terminology, therapeutic fasting, Delphi, Delphi method, decision-making, intermittent fasting
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 38 participants (actual)
- Lead sponsor
- Charite University, Berlin, GermanyUniversity, hospital or other
- Study start
- 1 Feb 2022 (actual)
- Primary completion
- 1 Aug 2023 (actual)
- Study completion
- 1 Aug 2023 (actual)
- First posted
- 29 Dec 2022 (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.
A consensus-based decision making process on fasting terminology will be conducted using the Delphi technique. To this aim, experts around the world are invited.
Detailed description
The consensus-based decision making process on fasting terminology will include a maximum of five rounds of questionnaires that experts are invited to complete online using a pseudonym. Prof. Dr. med. Michalsen's department has prepared rough definitions of key terms for the questionnaire to be evaluated by the experts. These terms should serve as a starting point for the discussion. After each questionnaire round the experts' comments are reviewed by the project team and a new questionnaire with the suggested modifications from the previous round will be sent to the experts.
If consensus can't be reached by round three, a live-online-discussion will be held to facilitate the further proceedings.
The results are to be published in a peer-reviewed journal; individual statements will not be shared in the publication.
Study design
- Observational model
- Other
- Time perspective
- Other
Who may qualify
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
- Study population
- clinicians or scientists
Key inclusion criteria (2 listed)
- clinicians or scientists with at least 5 peer-reviewed publications on fasting or
- at least one peer-reviewed publication and 5 years of clinical experience with fasting
Key exclusion criteria (1 listed)
- not more than 2 experts from one institution are allowed to participate
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 |
|---|---|---|
| Consensus Decision MakingConsensus-based decision-making process, where experts are asked to comment definitions of terms used for fasting interventions | Other | – |
Primary outcome
Definitions of fasting regimens
Time frame: repetition of the survey until consensus is reached, max. 12 months
Definitions of fasting regimen (qualitative research) with max. five survey rounds and potentially one online discussion panel
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 29 Dec 2023.
Related trials for Consensus Development
RecruitingObservational study
Cardiothoracic Critical Care as Subspecialty and Its Core Competencies
Consensus Development
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.
Andreas Michalsen, Prof. Dr. principal investigator
Charite University, Berlin, Germany
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Consensus Development, run by Charite University, Berlin, Germany at 1 site in Germany.
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 1 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 29 Dec 2023. 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 Germany. 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?
Definitions of fasting regimens (time frame: repetition of the survey until consensus is reached, max. 12 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 29 Dec 2023; AzTrials last refreshed its copy on 27 Oct 2026.