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Antikolinerg belastning og osteoporose ved revmatoid artritt

2. november 2026 oppdatert av: Bilal Uysal, Balikesir University

Antikolinerg medikamentbruk hos pasienter med revmatoid artritt og dens effekter på bruddrisiko

Background: Rheumatoid arthritis (RA) is a chronic, progressive, inflammatory rheumatological disease. Use of corticosteroids for more than 3 months in RA treatment is considered an important risk factor in terms of developing secondary osteoporosis and increasing the risk of fracture. The cumulative effect of taking one or more drugs with anticholinergic properties is called anticholinergic load. It is stated that anticholinergic load also increases the risk of fracture in individuals. The aim of this study is to investigate the effects of drugs used by patients with Rheumatoid Arthritis (RA) on anticholinergic load and fracture risk. The Fracture Risk Assessment Tool (FRAX) will be used to assess fracture risk in patients.

Materials and methods: The study was planned as a prospective cohort study. The study will included 100 patients who were followed up as outpatients with rheumatoid arthritis diagnosis in the physical medicine and rehabilitation clinic between 2024-2025. Patients of both genders and over 18 years of age diagnosed with rheumatoid arthritis will be included in the study. Patients with systemic diseases or medications affecting bone metabolism and those with metallic materials in the hip or lumbar vertebrae affecting bone mineral density measurement will be excluded from the study. Demographic characteristics, systemic diseases, medications used, bone density measurement and blood test values of the patients will be recorded.

Patients taking multiple medications with anticholinergic effects create an anticholinergic burden. The Anticholinergic Drug Scale, Anticholinergic Cognitive Burden Scale and Anticholinergic Risk Scale will be used to measure anticholinergic burden in the study.

Studieoversikt

Detaljert beskrivelse

It will be conducted in Balıkesir University, Faculty of Medicine, Health Practice and Research Hospital, Department of Physical Medicine and Rehabilitation.

The study planned to include patients with rheumatoid arthritis classified according to the 2010 American College of Rheumatology/European League Against Rheumatology (ACR/EULAR) criteria. The study will be conducted on patients diagnosed with rheumatoid arthritis and followed up in physical medicine and rehabilitation outpatient clinics.

Bone mineral density measurement (DEXA), urea, creatinine, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, calcium, phosphorus, thyroid stimulating hormone, free thyroxine, parathyroid hormone and 25-OH vitamin D levels in routine examinations of the patients within the last year and the medications used will be obtained from the patient files and recorded.

Patients taking multiple medications with anticholinergic effects create an anticholinergic burden. Several tools have been developed to estimate the cumulative effects of drugs with anticholinergic effects in individuals. They are based on either expert consensus, serum anticholinergic activity or pharmacological principles. The Anticholinergic Drug Scale, Anticholinergic Cognitive Burden Scale and Anticholinergic Risk Scale, which are widely used to measure anticholinergic burden, will be used in the study.

The Fracture Risk Assessment Tool (FRAX) will be used to assess fracture risk in patients. The University of Sheffield launched the FRAX tool in 2008 (Center for Metabolic Bone Diseases, University of Sheffield, UK).

Studietype

Observasjonsmessig

Registrering (Faktiske)

120

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

      • Balıkesir, Tyrkia (Türkiye), 10145
        • Balikesir University Health Practice and Research Hospital

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Prøvetakingsmetode

Sannsynlighetsprøve

Studiepopulasjon

Patients diagnosed with rheumatoid arthritis

Beskrivelse

Inclusion Criteria:

  • Patients diagnosed with rheumatoid arthritis

Exclusion Criteria:

  • Kemik metabolizmasını etkileyen sistemik hastalıkları veya ilaçları kullanan hastalar,
  • Kemik mineral yoğunluk ölçümünü etkileyen kalça veya lomber vertebralarda metalik materyalleri olan hastalar

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Observasjonsmodeller: COHORT
  • Tidsperspektiver: PROSPECTIVE

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
group 1

ACB risk score of 3 or more (high risk).

Bone mineral density was measured using a Dual Energy X-ray Absorptiometry (DEXA) device.

Fracture Risk Assessed with Fracture Risk Assessment Tool (FRAX).

group 2

ACB risk score of less than 3 (low risk)

Bone mineral density was measured using a Dual Energy X-ray Absorptiometry (DEXA) device.

Fracture Risk Assessed with Fracture Risk Assessment Tool (FRAX).

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
The Anticholinergic Cognitive Load (ACB)
Tidsramme: 1 week after the start of the study

The ACB score is a score that determines the impact of anticholinergic medications. ACB is a scale that was introduced in 2008 and is widely used to estimate anticholinergic burden and its relationship with cognitive impairment. ACB is the most easily accessible and most frequently used scale in practice. The scale scores between 0 and 3 according to the affinity of the drugs to muscarinic receptors and their effects on cognition. 0 is no burden; a score of 3 or above is considered high risk. The anticholinergic burden of 88 drugs is calculated in the ACB score.

1 week after the start of the study
The Anticholinergic Risk Scale (ARS)
Tidsramme: 1 week after the start of the study

The Anticholinergic Risk Scale (ARS) is used to estimate the extent to which a patient may be at risk for anticholinergic side effects that can lead to cognitive dysfunction and delirium. The ARS ranks medications for anticholinergic potential on a 3-point scale (0, no or low risk; 3, high anticholinergic potential). The ARS score for a patient is the sum of points for his or her number of medications.

1 week after the start of the study

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
The Fracture Risk Assessment Tool (FRAX)
Tidsramme: 1 week after the start of the study

The FRAX will be used to assess fracture risk in patients. The University of Sheffield launched the FRAX tool in 2008 (Center for Metabolic Bone Diseases, University of Sheffield, UK). It was developed by the FRAX® tool to assess fracture risk in patients. It is based on individual patient models combining fracture risk associated with clinical risk factors and femoral neck bone mineral density (BMD) measurement.

FRAX® models were developed based on population-based cohort studies conducted in Europe, North America, Asia and Australia.

FRAX® algorithms provide the 10-year probability of fracture. The result indicates the 10-year probability of having a hip fracture and a major osteoporotic fracture (clinical vertebral, forearm, hip or shoulder fracture).

1 week after the start of the study

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Hovedetterforsker: Bilal UYSAL, assistant prof., Balikesir University

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

  • Anticholinergic medication use and falls in postmenopausal women: findings from the women's health initiative cohort study

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

15. september 2025

Primær fullføring (Faktiske)

28. november 2025

Studiet fullført (Faktiske)

31. desember 2025

Datoer for studieregistrering

Først innsendt

2. februar 2025

Først innsendt som oppfylte QC-kriteriene

2. februar 2025

Først lagt ut (Faktiske)

6. februar 2025

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

3. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

2. november 2026

Sist bekreftet

1. november 2026

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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