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Rheumatoid ArthritisNutriFastNCT03856190

Effectiveness of Therapeutic Fasting and Specific Diet in Patients With Rheumatoid Arthritis

A study testing Fasting and plant-based nutrition and Standard Nutrition Counselling in people with Rheumatoid Arthritis, run by Charite University, Berlin, Germany at 2 sites in Germany.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The aim of this trial is an evaluation of the effectiveness of fasting and a subsequent diagnosis-specific diet change in patients with rheumatoid arthritis in respect to improving rheumatic symptoms and further to investigate possible mechanisms of this improvement. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Rheumatoid Arthritis
What is being tested?
Fasting and plant-based nutrition and Standard Nutrition Counselling
Could I receive a placebo?
No, everyone receives an active treatment
How many people
53 participants
Where
2 sitesGermany
Study dates
18 Mar 2019to 7 Jul 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 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Rheumatoid arthritis
  • free of any serious medical condition that precludes safe participation in an exercise program, such as coronary artery disease, severe hypertension, peripheral vascular disease, stroke, congestive heart failure, chronic obstructive pulmonary disease, insulin-dependent diabetes, psychiatric disease, renal disease, liver disease, active cancer other than skin cancer, and anemia
  • Ability to understand the intervention concept and written consent to participate;
  • Willingness to accept randomization and undergo the testing and intervention procedures and deliver stool, blood and urine samples for testing
  • Age 18-70 years (inclusive)
  • drug therapy was not started in the last 8 weeks before screening

Who cannot join

  • Gout or septic arthritis
  • Psychiatric disease that interferes with the understanding and implementation of the intervention
  • Pregnancy or breast feeding
  • In the case of pronounced anemia (Hb <10 mg / dl) no inclusion in the examination or no additional blood sampling is carried out
  • Underweight (BMI <18,5) or weight loss of >3kg/5kg in the last/last 3 month(s)
  • Eating disorder (such as bulimia, anorexia nervosa) in the last 5 years
  • Current vegan nutrition
  • Non-existence of email address or internet access

Trial locations and contacts

2 sites in 1 country.

Germany2 sites
  • Charité Hochschulambulanz für Naturheilkunde, Immanuel Krankenhaus Berlin

    Berlin, 14163

  • Charité University, Berlin, Department of Rheumatology and Clinical Immunology

    Berlin

Other trials in Germany

About this study

Official title: Effectiveness of Therapeutic Fasting and Specific Diet in Patients With Rheumatoid Arthritis: a Randomized Controlled Clinical Trial

The aim of this trial is an evaluation of the effectiveness of fasting and a subsequent diagnosis-specific diet change in patients with rheumatoid arthritis in respect to improving rheumatic symptoms and further to investigate possible mechanisms of this improvement.

Read the detailed description

Rheumatoid arthritis is an inflammatory-destructive joint disease for which up to date etiopathogenetical causes are lacking. In recent years, numerous new therapeutic concepts have been developed in the form of targeted antibody therapies that can block various inflammatory mechanisms. Although better treatment successes in comparison with conventional therapies were achieved, patients respond to the new therapies in very different ways. As a result the optimal drug needs to be identified for each patient through individual treatment trials. So far, no healings have been achieved and the progression of the disease can be stopped only by permanent suppression of the inflammatory response. In addition to different immunological mechanisms and genetic predispositions, interactions with the microbiome of the intestine are increasingly being discussed in recent years. A dysbiotic intestinal flora, characterized by the loss of beneficial bacteria and a concomitant increase in potentially pathogenic microbes, is associated with chronic inflammatory syndromes.

Modified fasting (up to 500 kcal energy intake per day) for 7-10 days leads to an improvement of the symptoms in many patients with rheumatoid arthritis and is regularly used by the applicants for the treatment of rheumatoid arthritis. Several clinical studies have shown that therapeutic fasting produces anti-inflammatory effects. However, so far no standardized method for long-term stabilization of corresponding effects after resumption of nutrition has been established.

Recent transcriptome analyzes have not only revealed numerous new potential markers, but also increasingly allow conclusions to be drawn from these extensive datasets that suggest immunological relationships between specific genes. In preliminary studies within the framework of a project of the same study group, it was possible to identify inflammatory profiles of individual foods and to identify molecular markers of disease activity in rheumatoid arthritis whose diagnostic value has been tested and interpreted under the influence of fasting. These markers will now be clinically evaluated in this study in collaboration with both centers.

The hypothesis is that a combination of fasting and subsequent diagnosis-specific diet change will improve the rheumatic symptoms. In this context, it will also be analyzed, which meaning of the changes 1) of the metabolism and 2) of the microbiome, mediated by fasting and nutrition, belongs. This will be demonstrated by using already identified markers for genotypic traits, gene expression traits, characteristics of protein expression, protein activities, and antigen-specific immunological response patterns.

The present research project aims to combine the different aspects of a possible anti-rheumatic nutrition and to evaluate the nutritherapeutic concept in an RCT. We suggest that a part of the anti-inflammatory effects of fasting and best practice diets may be due to a change in the composition of the intestinal flora mediated. Thus this study contributes to the extended therapy of rheumatoid arthritis.

Being tested
Fasting and plant-based nutrition, Standard Nutrition Counselling
Keywords
Fasting, Vegan, Plant based, Randomized Trial
Medical subject headings
Arthritis, Rheumatoid, Fasting

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Fasting and plant-based nutritionOther

    The experimental intervention is divided into an initial part with periodic fasting for 7-10 days on an outpatient basis, which is followed by a build-up phase. This group part then receives a diet change with a specific normocaloric nutrition including the concept of time restricted eating (TRE, 16/8h) and according to the following criteria: 1) plant-based, 2) rich in prebiotics, 3) enriched with kitchen spices and kitchen herbs known for their anti-mycotic and anti-inflammatory potential.

  • Standard Nutrition CounsellingOther

    The control group receives a diet considered to be fundamentally beneficial to health in the sense of the recommendations of the German Association for Nutrition (DGE), which contain a reduced intake of arachidonic acid and, as a result, modulate an anti-inflammatory effect.

Study groups in NCT03856190
Study groupRoleWhat they receive
Fasting and "best practice" nutritionActive comparatorInitial fasting followed by 11 weeks plant-based diet
Receives: Other: Fasting and plant-based nutrition
Standard Nutrition CounsellingActive comparator12 weeks standard antiinflammatory diet
Receives: Other: Standard Nutrition Counselling

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Health Assessement Questionnaire (HAQ)

    Change from Baseline in the HAQ after 12 weeks, range from 0 to 3 while higher values meaning a higher grade of disability

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

Secondary outcomes (40)
  1. Disease Activity Score 28 (DAS-28-CRP)

    Change from Baseline in the DAS-28-CRP, range from 2.0 to 10.0 while higher values meaning a higher disease activity and below of 2.6 meaning remission

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  2. American College of Rheumatology (ACR) response criteria

    Change from Baseline in fulfilling the ACR response criteria indicating therapy response rate in percent (none, ACR20, ACR50 or ACR70)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  3. Simplified Disease Activity Index Score (SDAI)

    Change from Baseline in the SDAI, range from 0 to 86 with assumed range from 0.1 to 10mg/dL for CRP. Higher values mean a higher disease activity and below of 34 meaning remission.

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  4. Bio-electrical impedance analysis (BIA)

    Estimation of the body composition via bio-electrical impedance analysis (body fat and visceral fat in %)

    Measured: Date of inclusion (baseline), after 6 and 12 weeks

  5. Bio-electrical impedance analysis (BIA)

    Estimation of the body composition via bio-electrical impedance analysis (muscle mass in kg)

    Measured: Date of inclusion (baseline), after 6 and 12 weeks

  6. Abdominal circumference

    Measured: Date of inclusion (baseline), after 6 and 12 weeks

  7. Resting blood pressure

    Measured: Date of inclusion (baseline), after 6 and 12 weeks

  8. Pulse rate

    Measured: Date of inclusion (baseline), after 6 and 12 weeks

  9. Differential blood count

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  10. Hepatic transaminases (GPT, GOT) and Gamma glutamyl transpeptidase (y-GT)

    • GPT in units per liter (U/L)
    • GOT (U/L)
    • y-GT (U/L)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  11. Total protein in grams per liter (g/L)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  12. Creatinine in µmol per liter (µmol/L)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  13. Creatine kinase (U/L)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  14. Estimated glomerular filtration rate (eGFR) in milliliter per minute (mL/min)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  15. Electrolytes

    • calcium in millimol per liter (mmol/L)
    • potassium (mmol/L)
    • sodium (mmol/L)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  16. Erythrocyte sedimentation rate (ESR) in millimeters per hour (mm/h)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  17. CRP in milligram per liter (mg/L)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  18. International normalized ratio (INR)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  19. Partial thromboplastin time (PTT) in seconds (s)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  20. Lactate dehydrogenase (LDH) (U/L)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  21. Blood lipids and fasting glucose

    • triglycerides (mmol/L)
    • total cholesterol (mmol/L)
    • LDL (mmol/L)
    • HDL (mmol/L)
    • fasting glucose (mmol/L)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  22. Uric acid (µmol/L)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  23. Rheumatoid factor (IgM)

    Measured: Date of inclusion (baseline)

  24. Anti-cyclic citrullinated peptide (anti-CCP)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  25. Phenotyping of immune cells

    Determination of cytometric parameters that indicate changes in cell activation or quantitative changes in the absolute and/or relative size of subpopulations (e.g. classical/intermediate/non-classical monocytes, naïve and memory T-cells, B-cell differentiation to plasmablasts/-cells) Gene expression analysis of immune cells with Affymetrix whole genome microarrays and RNAseq to search for transcriptional patterns and markers that help to identify relevant immune cell (sub-)populations, which are not yet included in the cytometric phenotyping screen

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  26. Metabolic plasma metabolites

    Metabolic plasma metabolites of carbon metabolism with a blood spot extract using metabolomics (GC / MS)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  27. Urine analysis (10 ml midstream urine)

    Measured: Date of inclusion (baseline), day 7, after 6 and 12 weeks

  28. Gut microbiome

    Molecular typing of the extremely individual intestinal microbiota composition by sequencing of stool material (16S-, 18S-, ITS-amplicon sequencing, metagenomics, metatranscriptomics) and performing proteomics and metabolomics to characterize fasting and diet induced changes of the so far insufficiently characterized gut microbiota related molecular components in a subgroup of patients

    Measured: Date of inclusion (baseline), day 7, week 6 and week 12

  29. Sociodemographic Measurements

    age, education level, household income, employment status, marital status, language spoken, complete family history of rheumatoid arthritis in first- and second-degree relatives, current and previous illness and co-morbidities, and current medications

    Measured: Date of inclusion (baseline)

  30. Medication intake

    Systematized documentation of medication, main and secondary diagnoses using CRF

    Measured: Date of inclusion (baseline), after 6 and 12 weeks

  31. Analgetics intake

    Systematized documentation of analgetic medication on a daily basis using a diary

    Measured: Up to 12 weeks

  32. Documentation of Behavioral Factors

    Documentation of digestion, menstruation, compliance on diet and extraordinary events on a daily basis using a diary

    Measured: Up to 12 weeks

  33. Quantification of Behavioral Factors

    Documentation of occupational stress, domestic stress, interpersonal conflicts on a daily basis using a diary via visual analog scale (VAS), range from 0 to 10 while higher values meaning a higher grade of stress

    Measured: Up to 12 weeks

  34. Quantification of Behavioral Factors

    Nicotine, Alcohol, Physical Inactivity, Coffee and Media Consumption via Likert Scales, range from 0 to 5 while higher values meaning a higher grade of agreement

    Measured: Date of inclusion (baseline), after 6 and 12 weeks

  35. Food selection

    Nutritional history via dietary record (each for 3 days)

    Measured: Date of inclusion (baseline), after 4 and 9 weeks

  36. Dietary Behaviour

    Modified FFQ recording dietary behaviour such as mealtimes, frequency of food intake, food preferences, fasting experiences

    Measured: Date of inclusion (baseline), after 6 and 12 weeks

  37. The Hannover Functional Ability Questionnaire (Funktionsfragebogen Hannover, FFbH-R)

    Change from Baseline in the FFbH-R, range from 0 to 100 % while higher values meaning a higher grade of functional capacity

    Measured: Date of inclusion (baseline), after 6 and 12 weeks, after 6 months

  38. Mood questionnaire (Profile of Mood States, POMS)

    Change from Baseline in Emotional Distress will be measured using the German Version of the Profile of Mood States (POMS) short version (35 items, 7-point Likert scale; 0=not at all, 6=extremely). It has 65 items and 6 domains: depression [range 0 - 98], vigour-activity [range 0 - 49], fatigue [range 0 - 49], and anger-hostility [range 0 - 49]. The total mood disturbance score is derived by subtracting the vigour-activity score from the the sum of scores from the other subscales. Lower scores indicate more stable mood profiles.

    Measured: Date of inclusion (baseline), after 6 and 12 weeks, after 6 months

  39. Stress questionnaire (Cohen Perceived Stress Scale, CPSS)

    Change from Baseline in the CPSS, range from 0 to 4 in each item. Scores are obtained by reversing responses (e.g., 0 = 4, 1 = 3, 2 = 2, 3 = 1 \& 4 = 0) to the positively stated items and then summing across all scale items while higher values meaning a higher grade of perceived stress.

    Measured: Date of inclusion (baseline), after 6 and 12 weeks, after 6 months

  40. Quality of Life questionnaire (WHO-5)

    Change from Baseline in the WHO-5, range from 0 to 100 % while higher values meaning a higher grade of well-being

    Measured: Date of inclusion (baseline), after 6 and 12 weeks, after 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Feb 2019
  2. Study start18 Mar 2019
  3. Primary completion8 Apr 2021
  4. Study completion7 Jul 2021

Why it stopped: Covid pandemic, research halt, expiring funding

Resources

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
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
53 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03856190
Sponsor's protocol ID
NutriFast
Acronym
NutriFast
Status last verified
Jul 2021
First submitted
24 Jan 2019
Last updated
7 Feb 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: The study protocol is to be published open access. On publishing the outcomes, the anonymized individual participant data that underlie the reported results, as well as the statistical code, will be made available to scientific investigators who issue a methodologically sound proposal.

Publications

  • Hartmann AM, Dell'Oro M, Spoo M, Fischer JM, Steckhan N, Jeitler M, Haupl T, Kandil FI, Michalsen A, Koppold-Liebscher DA, Kessler CS. To eat or not to eat-an exploratory randomized controlled trial on fasting and plant-based diet in rheumatoid arthritis (NutriFast-Study). Front Nutr. 2022 Nov 2;9:1030380. doi: 10.3389/fnut.2022.1030380. eCollection 2022.

    PubMed 36407522
  • Hartmann AM, Dell'Oro M, Kessler CS, Schumann D, Steckhan N, Jeitler M, Fischer JM, Spoo M, Kriegel MA, Schneider JG, Haupl T, Kandil FI, Michalsen A, Koppold-Liebscher DA. Efficacy of therapeutic fasting and plant-based diet in patients with rheumatoid arthritis (NutriFast): study protocol for a randomised controlled clinical trial. BMJ Open. 2021 Aug 11;11(8):e047758. doi: 10.1136/bmjopen-2020-047758.

    PubMed 34380725

Questions about this trial

What is this clinical trial studying?

A study testing Fasting and plant-based nutrition and Standard Nutrition Counselling in people with Rheumatoid Arthritis, run by Charite University, Berlin, Germany at 2 sites 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 6 inclusion and 8 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: stopped early, as of the sponsor's last update on 7 Feb 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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 was stopped early (reason given: Covid pandemic, research halt, expiring funding). Results are not available in the source record.

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?

Health Assessement Questionnaire (HAQ) (time frame: Date of inclusion (baseline), day 7, after 6 and 12 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 NCT03856190, which also lists 2 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 7 Feb 2022.

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