NCT04772976

Brief Summary

Ankylosing Spondylitis (AS) is a chronic inflammatory autoimmune disease. The aim of this study is to reveal the relationship between dietary intake, blood total antioxidant capacity and disease activity in individuals with AS. This study will include patients diagnosed with AS who applied to Ankara City Hospital Physical Therapy and Rehabilitation Hospital, and a control group that does not have AS. The sociodemographic characteristics and nutritional habits and 1-day physical activity status of individuals with AS and healthy persons will be recorded. Anthropometric measurements of all individuals (such as height length (cm) and body weight) will be taken. From the height and body weight measurements, the individuals body mass indexes will be calculated. All parts of the questionnaire for individuals included in the research will be filled in by the researcher through face-to-face interview technique. The disease activity score of the individuals in the case group will be evaluated by the physician. Serum biochemical parameters will be taken from the patient files. In the patient information system of the control group, above mentioned blood tests will be recorded from the examinations performed in the last 1 month. Serum total antioxidant and oxidant levels will be measured in a private laboratory with a tube (5 ml) of blood from all individuals. The parameters to be examined in blood samples are specific to the study and their cost will be covered by the researchers.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
73

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Nov 2020

Shorter than P25 for all trials

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

Study Start

First participant enrolled

November 16, 2020

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2021

Completed
3 days until next milestone

Study Completion

Last participant's last visit for all outcomes

February 3, 2021

Completed
18 days until next milestone

First Submitted

Initial submission to the registry

February 21, 2021

Completed
5 days until next milestone

First Posted

Study publicly available on registry

February 26, 2021

Completed
Last Updated

February 26, 2021

Status Verified

February 1, 2021

Enrollment Period

3 months

First QC Date

February 21, 2021

Last Update Submit

February 23, 2021

Conditions

Keywords

Ankylosing SpondylitisAntioxidant capacityDietPhytochemical indexOxidant capacity

Outcome Measures

Primary Outcomes (3)

  • Dietary phytochemical index

    Dietary phytochemical index is calculated from one day dietary record. Higher index is better.

    Will be done only once on the first day after inclusion.

  • Total antioxidant and oxidant capacity

    Higher total antioxidant capacity and lower oxidant capacity is better.

    Blood samples will be obtained once on the first day after inclusion. Samples will be stored in -80 C medical refrigerator and analysis will be done after collection of all samples.

  • Ankylosing Spondylitis Disease Activity Score

    Higher scores (\>2.1) mean active disease. Lower scores (\<1.3) mean inactive disease

    Will be done only once on the first day after inclusion.

Study Arms (2)

Patient group

Patients with Ankylosing Spondylitis

Other: Observational study, not applicable

Healthy controls

Healthy controls

Other: Observational study, not applicable

Interventions

Observational study, not applicable

Healthy controlsPatient group

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Outpatient clinic patients

You may qualify if:

  • Being between the ages of 18-65,
  • Being followed up with a diagnosis of AS

You may not qualify if:

  • Individuals under 18 and over 65 years of age,
  • Those with active or previous history of malignancy
  • Those diagnosed with cardiovascular disease
  • Those with chronic kidney disease
  • Those with liver disease
  • Those with acute or chronic inflammatory diseases
  • Those with diabetes
  • Those with acute or chronic infections
  • Those who consume alcohol,
  • Smokers,
  • Pregnant and breastfeeding women,
  • People with severe psychiatric illness,
  • Those who take regular medication and antioxidant nutritional supplements,
  • Those who are not volunteer to participate in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ankara City Hospital

Ankara, 06800, Turkey (Türkiye)

Location

Related Publications (3)

  • Feijoo M, Tunez I, Tasset I, Montilla P, Ruiz A, Collantes E. Infliximab reduces oxidative stress in ankylosing spondylitis. Clin Exp Rheumatol. 2009 Jan-Feb;27(1):167-8; author reply 168. No abstract available.

    PMID: 19327250BACKGROUND
  • Karakoc M, Altindag O, Keles H, Soran N, Selek S. Serum oxidative-antioxidative status in patients with ankylosing spondilitis. Rheumatol Int. 2007 Oct;27(12):1131-4. doi: 10.1007/s00296-007-0352-3. Epub 2007 Apr 19.

    PMID: 17443328BACKGROUND
  • Howes MJ, Simmonds MS. The role of phytochemicals as micronutrients in health and disease. Curr Opin Clin Nutr Metab Care. 2014 Nov;17(6):558-66. doi: 10.1097/MCO.0000000000000115.

    PMID: 25252018BACKGROUND

Biospecimen

Retention: SAMPLES WITHOUT DNA

Whole blood

MeSH Terms

Conditions

Spondylitis, Ankylosing

Interventions

Observation

Condition Hierarchy (Ancestors)

Axial SpondyloarthritisSpondylarthropathiesSpondylarthritisSpondylitisSpinal DiseasesBone DiseasesMusculoskeletal DiseasesAnkylosisJoint DiseasesArthritis

Intervention Hierarchy (Ancestors)

MethodsInvestigative Techniques

Study Officials

  • Fatma Gul Yurdakul, Assoc.Prof.

    Ankara City Hospital, Physical Medicine and Rehabilitation Hospital, Ankara, Turkey

    PRINCIPAL INVESTIGATOR
  • Hatice Bodur, Prof.

    Ankara City Hospital, Physical Medicine and Rehabilitation Hospital, Ankara, Turkey

    PRINCIPAL INVESTIGATOR
  • Evren Yasar, Prof

    Ankara City Hospital, Physical Medicine and Rehabilitation Hospital, Ankara, Turkey

    PRINCIPAL INVESTIGATOR
  • Nilgun Seremet Kurklu, Asist.Prof.

    Akdeniz University, Faculty of Health Sciences, Department of Nutrition and Dietetics

    PRINCIPAL INVESTIGATOR
  • Kubra Tel Adiguzel, Asist.Prof.

    University of Health Sciences Turkey, Gulhane Faculty of Health Sciences, Nutrition and Dietetics

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

February 21, 2021

First Posted

February 26, 2021

Study Start

November 16, 2020

Primary Completion

January 31, 2021

Study Completion

February 3, 2021

Last Updated

February 26, 2021

Record last verified: 2021-02

Data Sharing

IPD Sharing
Will not share

Locations