Study of Some Risk Factors for Developing RA
1 other identifier
observational
60
0 countries
N/A
Brief Summary
Introduction Rheumatoid arthritis (RA), a chronic autoimmune disease of unknown etiology, .If not managed early , RA can result in irreversible, painful, and disabling joint damage. RA is often diagnosed using predefined criteria that necessitate clinical, laboratory, and radiologic examinations. The prevalence of RA among adults is approximately 1-2% affecting women two to four times more often than men.Although RA risk increases with age, it can manifest at any stage of life, including childhood, adolescence, and adulthood.(1-4)( Karlson EW, Mandl LA, Hankinson SE, Grodstein F, Karlson EW, Mandl LA, Hankinson SE, Grodstein F., Karlson EW, Mandl LA, Hankinson SE, Grodstein F, Karlson EW, Mandl LA, Hankinson SE, Grodstein F) To date, a limited number of RA risk or protective factors have been identified, with genetic predisposition to autoimmune response (eg, HLA-DR4 gene) and repeated environmental exposures (eg, tobacco smoke) playing a major role.(3)(Karlson EW, Mandl LA, Hankinson SE, Grodstein F) Heritability of RA is well-established because the lifetime risk of RA and related autoimmune diseases (namely, systemic lupus erythematosus, ankylosing spondylitis, scleroderma, Sjo¨gren's syndrome, and hypothyroidism) increases 1.5 to 3 times in children of women diagnosed with RA.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Aug 2018
Shorter than P25 for all trials
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 11, 2018
CompletedFirst Posted
Study publicly available on registry
August 10, 2018
CompletedStudy Start
First participant enrolled
August 15, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 15, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
September 20, 2018
CompletedAugust 10, 2018
August 1, 2018
1 month
July 11, 2018
August 8, 2018
Conditions
Outcome Measures
Primary Outcomes (2)
vitamin D level
blood sample using ELISA kits
one month
Body mass index
weight in kg/m\^2
one month
Secondary Outcomes (2)
Anti cyclic citrullnated peptide antibodies
one month
Rheumatoid factor antibody
one month
Study Arms (2)
Rheumatoid arthritis patients
complete blood count, Erythrocyte sedimentation rate, C reactive protien ,rheumatoid factor,Anti cyclic citrullinated peptide antibody
healthy control
complete blood count, Erythrocyte sedimentation rate, C reactive protien ,rheumatoid factor,Anti cyclic citrullinated peptide antibody
Eligibility Criteria
patients with rheumatoid arthritis
You may qualify if:
- patients with rheumatoid arthritis diagnosed based on american collegue of rheumatology 2010 criteria with no history of vit D therapy
You may not qualify if:
- patients with rheumatoid arthritis on vit D supplements
- patient refusal
- patient not fullfill american collegue of rheumatology 2010 citeria for diagnosis pf rheumatoid arthritis
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (12)
Almodovar PI. Dermatology diagnosis. Tuberculoid leprosy. Bol Asoc Med P R. 1986 Dec;78(12):514-5. No abstract available.
PMID: 3468952BACKGROUNDJankosky C, Deussing E, Gibson RL, Haverkos HW. Viruses and vitamin D in the etiology of type 1 diabetes mellitus and multiple sclerosis. Virus Res. 2012 Feb;163(2):424-30. doi: 10.1016/j.virusres.2011.11.010. Epub 2011 Nov 20.
PMID: 22119899BACKGROUNDGinns LC, Ryu JH, Rogol PR, Sprince NL, Oliver LC, Larsson CJ. Natural killer cell activity in cigarette smokers and asbestos workers. Am Rev Respir Dis. 1985 Jun;131(6):831-4. doi: 10.1164/arrd.1985.131.6.831.
PMID: 4003932BACKGROUNDHodges GR, Loker EF Jr. Letter: Fatal pneumonia cause: avirulent wild-type ADV-7 or vaccine strain ADV-7. Chest. 1975 Jun;67(6):740. No abstract available.
PMID: 165046BACKGROUNDMendes EN, Queiroz DM, Rocha GA, Nogueira AM, Carvalho AC, Lage AP, Barbosa AJ. Histopathological study of porcine gastric mucosa with and without a spiral bacterium ("Gastrospirillum suis"). J Med Microbiol. 1991 Dec;35(6):345-8. doi: 10.1099/00222615-35-6-345.
PMID: 1753392BACKGROUNDKarlson EW, Mandl LA, Hankinson SE, Grodstein F. Do breast-feeding and other reproductive factors influence future risk of rheumatoid arthritis? Results from the Nurses' Health Study. Arthritis Rheum. 2004 Nov;50(11):3458-67. doi: 10.1002/art.20621.
PMID: 15529351RESULTKawakami M, Watanabe N, Ogawa H, Kato A, Sando H, Yamada N, Murase T, Takaku F, Shibata S, Oda T. Cachectin/TNF kills or inhibits the differentiation of 3T3-L1 cells according to developmental stage. J Cell Physiol. 1989 Jan;138(1):1-7. doi: 10.1002/jcp.1041380102.
PMID: 2783422RESULTMerlino LA, Cerhan JR, Criswell LA, Mikuls TR, Saag KG. Estrogen and other female reproductive risk factors are not strongly associated with the development of rheumatoid arthritis in elderly women. Semin Arthritis Rheum. 2003 Oct;33(2):72-82. doi: 10.1016/s0049-0172(03)00084-2.
PMID: 14625816RESULTCooper GS, Bynum ML, Somers EC. Recent insights in the epidemiology of autoimmune diseases: improved prevalence estimates and understanding of clustering of diseases. J Autoimmun. 2009 Nov-Dec;33(3-4):197-207. doi: 10.1016/j.jaut.2009.09.008. Epub 2009 Oct 9.
PMID: 19819109RESULTClowse ME, Chakravarty E, Costenbader KH, Chambers C, Michaud K. Effects of infertility, pregnancy loss, and patient concerns on family size of women with rheumatoid arthritis and systemic lupus erythematosus. Arthritis Care Res (Hoboken). 2012 May;64(5):668-74. doi: 10.1002/acr.21593.
PMID: 22344961RESULTPadyukov L, Silva C, Stolt P, Alfredsson L, Klareskog L. A gene-environment interaction between smoking and shared epitope genes in HLA-DR provides a high risk of seropositive rheumatoid arthritis. Arthritis Rheum. 2004 Oct;50(10):3085-92. doi: 10.1002/art.20553.
PMID: 15476204RESULTReckner Olsson A, Skogh T, Wingren G. Comorbidity and lifestyle, reproductive factors, and environmental exposures associated with rheumatoid arthritis. Ann Rheum Dis. 2001 Oct;60(10):934-9. doi: 10.1136/ard.60.10.934.
PMID: 11557649RESULT
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- principle investigator
Study Record Dates
First Submitted
July 11, 2018
First Posted
August 10, 2018
Study Start
August 15, 2018
Primary Completion
September 15, 2018
Study Completion
September 20, 2018
Last Updated
August 10, 2018
Record last verified: 2018-08