NCT02941055

Brief Summary

Rheumatoid arthritis (RA) is a chronic inflammatory disease that affects 0.5-1% of the population, and where many patients in spite of modern pharmacological treatment fail to reach remission. The main goal of the randomized cross-over trial ADIRA (Anti-inflammatory Diet In Rheumatoid Arthritis) is to test the hypothesis that a diet intervention will decrease disease activity and improve quality of life in patients with established RA.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
56

participants targeted

Target at P25-P50 for not_applicable rheumatoid-arthritis

Timeline
Completed

Started Feb 2017

Shorter than P25 for not_applicable rheumatoid-arthritis

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

First Submitted

Initial submission to the registry

October 17, 2016

Completed
4 days until next milestone

First Posted

Study publicly available on registry

October 21, 2016

Completed
3 months until next milestone

Study Start

First participant enrolled

February 1, 2017

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 9, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 9, 2018

Completed
Last Updated

October 15, 2024

Status Verified

October 1, 2024

Enrollment Period

1.3 years

First QC Date

October 17, 2016

Last Update Submit

October 10, 2024

Conditions

Keywords

DietInflammationMetabolomics

Outcome Measures

Primary Outcomes (1)

  • Difference in disease activity score DAS28 (ie a composite score including tender and swollen joints count, ESR or CRP, VAS scale global health) between the two diet interventions, within each person

    Measured clinically

    10 weeks of each diet

Secondary Outcomes (5)

  • Difference in SF-36 between the two diet interventions, within each person

    10 weeks on each diet

  • Difference and changes in metabolites between the two diet interventions, within each person

    10 weeks on each diet

  • Differences in inflammatory markers between the two diet interventions, within each person

    10 weeks on each diet

  • Difference in EQ5D between the two diet interventions, within each person

    10 weeks on each diet

  • Difference in HAQ between the two diet interventions, within each person

    10 weeks on each diet

Other Outcomes (4)

  • Cost effectiveness of study intervention by Health-related quality of life

    10 weeks on each diet

  • Cost effectiveness of study intervention by QALYs

    10 weeks on each diet

  • Changes in blood lipids between the two diet interventions, within each person

    10 weeks on each diet

  • +1 more other outcomes

Study Arms (2)

Fiber diet

EXPERIMENTAL

50% of daily intake, 5 days a week, a diet rich in fiber, fish and probiotics will be provided to study subjects

Other: Fiber diet

Protein diet

ACTIVE COMPARATOR

50% of daily intake, 5 days a week, a diet rich in protein, red meat and saturated fat will be provided to study subjects

Other: Protein diet

Interventions

Foods will be delivered with a home delivery chain once a week for 10 wks of each diet

Fiber diet

Foods will be delivered with a home delivery chain once a week for 10 wks of each diet

Protein diet

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subjects with established RA, disease duration \>2 years, disease activity DAS28 \>= 2.6 and a disease that is clinically stable and under adequate control and medication, will be invited to participate.

You may not qualify if:

  • Other life threatening diseases, pregnancy, lactation, food intolerance or allergy to food included in the trial, ability to understand information in Swedish

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The University of Gothenburg

Gothenburg, 40530, Sweden

Location

Related Publications (6)

  • Winkvist A, Barebring L, Gjertsson I, Ellegard L, Lindqvist HM. A randomized controlled cross-over trial investigating the effect of anti-inflammatory diet on disease activity and quality of life in rheumatoid arthritis: the Anti-inflammatory Diet In Rheumatoid Arthritis (ADIRA) study protocol. Nutr J. 2018 Apr 20;17(1):44. doi: 10.1186/s12937-018-0354-x.

    PMID: 29678183BACKGROUND
  • Barebring L, Winkvist A, Gjertsson I, Lindqvist HM. Poor Dietary Quality Is Associated with Increased Inflammation in Swedish Patients with Rheumatoid Arthritis. Nutrients. 2018 Oct 18;10(10):1535. doi: 10.3390/nu10101535.

  • Wadell AT, Barebring L, Hulander E, Gjertsson I, Landberg R, Lindqvist H, Winkvist A. Dietary biomarkers and food records indicate compliance to study diets in the ADIRA (Anti-inflammatory Diet In Rheumatoid Arthritis) trial. Front Nutr. 2023 Jun 22;10:1209787. doi: 10.3389/fnut.2023.1209787. eCollection 2023.

  • Turesson Wadell A, Barebring L, Hulander E, Gjertsson I, Lindqvist HM, Winkvist A. Inadequate Dietary Nutrient Intake in Patients With Rheumatoid Arthritis in Southwestern Sweden: A Cross-Sectional Study. Front Nutr. 2022 Jun 21;9:915064. doi: 10.3389/fnut.2022.915064. eCollection 2022.

  • Hulander E, Barebring L, Turesson Wadell A, Gjertsson I, Calder PC, Winkvist A, Lindqvist HM. Diet intervention improves cardiovascular profile in patients with rheumatoid arthritis: results from the randomized controlled cross-over trial ADIRA. Nutr J. 2021 Jan 23;20(1):9. doi: 10.1186/s12937-021-00663-y.

  • Vadell AKE, Barebring L, Hulander E, Gjertsson I, Lindqvist HM, Winkvist A. Anti-inflammatory Diet In Rheumatoid Arthritis (ADIRA)-a randomized, controlled crossover trial indicating effects on disease activity. Am J Clin Nutr. 2020 Jun 1;111(6):1203-1213. doi: 10.1093/ajcn/nqaa019.

MeSH Terms

Conditions

Arthritis, RheumatoidInflammation

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic DiseasesConnective Tissue DiseasesSkin and Connective Tissue DiseasesAutoimmune DiseasesImmune System DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Anna Winkvist, PhD

    Göteborg University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 17, 2016

First Posted

October 21, 2016

Study Start

February 1, 2017

Primary Completion

May 9, 2018

Study Completion

May 9, 2018

Last Updated

October 15, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will not share

Not approved by the Ethical Review board

Locations