Questa pagina è stata tradotta automaticamente e l'accuratezza della traduzione non è garantita. Si prega di fare riferimento al Versione inglese per un testo di partenza.

Vitamin D and Cardiovascular Events in Rheumatoid Arthritis

12 ottobre 2016 aggiornato da: Mette Herly, Odense University Hospital

Association Between Baseline Vitamin D Metabolite Levels and Risk of Cardiovascular Events in Rheumatoid Arthritis Patients. A Cohort Study With Patient-record Evaluated Outcomes.

The aim of the study is to evaluate cardiovascular events during long-term follow-up in Rheumatoid Arthritis. The primary outcome "any cardiovascular event" will be evaluated using systematic audits of patient records, and will be associated to low levels of vitamin D at baseline, to investigate the hypothesis that low levels of vitamin D can be part of a prediction model for cardiovascular disease in Rheumatoid Arthritis.

Panoramica dello studio

Descrizione dettagliata

Cardiovascular morbidity and mortality is increased in patients with rheumatoid arthritis (RA), and among these patients, the prevalence of hypo-vitaminosis D is high. Low levels of vitamin D have been associated with elevated cardiovascular risk in healthy subjects. The objective of this study is to evaluate the risk of cardiovascular events in patients having low 25OHD-total levels at baseline compared to patients with sufficient levels, in an aggressively treated closed cohort of early-diagnosed RA patients.

The primary outcome will be the proportion of patients with any cardiovascular event, evaluated using systematic journal audits. Logistic regression models will be applied to test the hypothesis that there are more cardiovascular events in patients enrolled with a low level of vitamin D (< 50 nmol/l). Secondarily, Cox regression models, based on survival analysis, will be applied, to determine the extent to which independent variables (including different levels of vitamin D at baseline) predict not only whether a cardiovascular event occur, but also when it will occur.

Tipo di studio

Osservativo

Iscrizione (Effettivo)

160

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 75 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Metodo di campionamento

Campione di probabilità

Popolazione di studio

Hundred-and-sixty early diagnosed and treatment-naive RA patients, recruited from five Danish University Clinics (Trial Centres) from October 1999 to October 2002

Descrizione

Inclusion Criteria: Fulfilling ACR1987 (American College of Rheumatology 1987 classification criteria for Rheumatoid Arthritis) criteria for RA, disease duration < 6 months, 2 or more swollen joints and age between 18 and 75 years -

Exclusion Criteria: Glucocorticoid treatment 4 weeks prior to inclusion, previous use of DMARDs, malignancy, diastolic blood pressure > 90 mm Hg, elevated serum creatinine, infections with parvovirus B19, Hepatitis B, C and HIV, and any condition contraindicating the study medication.

-

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

Coorti e interventi

Gruppo / Coorte
Intervento / Trattamento
Rheumatoid arthritis patients
Participants in the original, parental trial
There is no medical intervention. The two groups are simple allocated depending on serum levels of D-total at the time of diagnosis
There is no medical intervention. The two groups are simple allocated depending on serum levels of D-total at the time of diagnosis

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Cardiovascular event
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Events will be recorded using systematic journal audits. A cardiovascular event will be further subclassified as shown in the secondary outcome measures, but for primary outcome measures; any cardiovascular event, including death, will serve as "an event"
Observed in the time-period from inclusion to October the 10th 2016

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Acute cardiovascular hospitalisation due to Myocardial Ischamia
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016

Non-fatal or fatal myocardial infarction, defined by National and International Guidelines (Thygesen et al. 1581-98).

Fatal myocardial infarction is defined as primary fatal event within 7 days, documented post mortem by autopsy, or by the definition of myocardial infarction according to European Guidelines (Thygesen et al. 1581-98) Death of myocardial infarction as a consequence of medical examination/procedure/surgery will be classified as procedure related death.

Acute Coronary Syndrome (ACS) includes acute ischaemic symptoms with eventual elevation in biomarkers or electrocardiographic changes which does not fulfil the criteria of acute myocardial infarction.

Angina Pectoris. Revascularisation procedures (Percutaneous Coronary Intervention (PCI) or Coronary bypass Graft (CABG).

Observed in the time-period from inclusion to October the 10th 2016
Acute cardiovascular hospitalisation due to hearth failure
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016

Patients with non-elective hospitalisation or death, minimum one overnight stay, with symptoms or findings of heart failure.

Death due to heart failure is defined as escalating heart failure symptoms prior to death.

Observed in the time-period from inclusion to October the 10th 2016
Acute cardiovascular hospitalisation due to stroke
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Cerebral haemorrhage, cerebral thromboembolism, Transitory Cerebral Ischemia (TCI) and others Stroke is defined as abrupt severe neurologic deficits, eventually with computer tomographic (CT) documentation. Death within 14 days after symptom-onset of stroke, and without other obviously reasons, is classified as caused by stroke
Observed in the time-period from inclusion to October the 10th 2016
Acute cardiovascular hospitalisation due to arrhythmias
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Atrial fibrillation or flutter, supraventricular tachycardia and others. Ventricular tachycardia, ventricular fibrillation and others. Death due to arrhythmia requires documentation, e.g. telemetric transcript, pacemaker or electrocardiogram
Observed in the time-period from inclusion to October the 10th 2016
Acute cardiovascular hospitalisation due to Procedure-related cardiovascular event
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Any cardiovascular event within 24 hours after cardiovascular medical examination/procedure/surgery.
Observed in the time-period from inclusion to October the 10th 2016
Acute cardiovascular hospitalisation due to other reasons
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Hospitalisation caused by other cardiovascular events, e.g. pulmonary embolism, rupture of aortic aneurism etc.
Observed in the time-period from inclusion to October the 10th 2016
Acute cardiovascular hospitalisation due to supposed cardiovascular reason
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016

Hospitalisation without any documented non-cardiovascular cause. All deaths which are not defined by the cardiovascular reasons mentioned above, and who are not caused by well-documented non-cardiovascular death.

All deaths without known reason

Observed in the time-period from inclusion to October the 10th 2016
Acute non-cardiovascular hospitalisation due to cancer
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Acute hospitalisation due to cancer
Observed in the time-period from inclusion to October the 10th 2016
Acute non-cardiovascular hospitalisation due to infection
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Acute hospitalisation due to infection
Observed in the time-period from inclusion to October the 10th 2016
Acute non-cardiovascular hospitalisation due to respiratory disease
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Acute hospitalisation due to respiratory disease
Observed in the time-period from inclusion to October the 10th 2016
Acute non-cardiovascular hospitalisation due to trauma
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Acute hospitalisation due to trauma
Observed in the time-period from inclusion to October the 10th 2016
Acute non-cardiovascular hospitalisation due to suicide
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Acute - hospitalisation due to suicide
Observed in the time-period from inclusion to October the 10th 2016
Acute non-cardiovascular hospitalisation due to other reasons
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Acute hospitalisation du to other non-cardiovascular reasons, than those previous mentioned
Observed in the time-period from inclusion to October the 10th 2016
Elective cardiovascular hospitalisation due to myocardial ischemia
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Observed in the time-period from inclusion to October the 10th 2016
Elective cardiovascular hospitalisation due to arrhythmia
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Observed in the time-period from inclusion to October the 10th 2016
Elective cardiovascular hospitalisation due to heart failure
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Observed in the time-period from inclusion to October the 10th 2016
Elective cardiovascular hospitalisation due to other cardiovascular reasons
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Observed in the time-period from inclusion to October the 10th 2016
Elective non-cardiovascular hospitalisation due to cancer
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Observed in the time-period from inclusion to October the 10th 2016
Elective non-cardiovascular hospitalisation due to infection
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Observed in the time-period from inclusion to October the 10th 2016
Elective non-cardiovascular hospitalisation due to respiratory disease
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Observed in the time-period from inclusion to October the 10th 2016
Elective non-cardiovascular hospitalisation due to trauma
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Observed in the time-period from inclusion to October the 10th 2016
Elective non-cardiovascular hospitalisation due to suicide
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Observed in the time-period from inclusion to October the 10th 2016
Witnessed, sudden cardiovascular death
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Death is witnessed and abrupt within one hour after symptom-onset
Observed in the time-period from inclusion to October the 10th 2016
Non-witnessed, sudden cardiovascular death
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Non-witnessed death with no obvious non-cardiovascular reasons (found death)
Observed in the time-period from inclusion to October the 10th 2016
Non-sudden cardiovascular death
Lasso di tempo: Observed in the time-period from inclusion to October the 10th 2016
Death due to any of the cardiovascular caused previously mentioned, more than one hour after symptom-onset
Observed in the time-period from inclusion to October the 10th 2016

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Investigatori

  • Cattedra di studio: Torkell Ellingsen, MD, Phd, Odense University Hospital

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio

1 ottobre 1999

Completamento primario (Effettivo)

1 ottobre 2016

Completamento dello studio (Effettivo)

1 ottobre 2016

Date di iscrizione allo studio

Primo inviato

12 ottobre 2016

Primo inviato che soddisfa i criteri di controllo qualità

12 ottobre 2016

Primo Inserito (Stima)

13 ottobre 2016

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Stima)

13 ottobre 2016

Ultimo aggiornamento inviato che soddisfa i criteri QC

12 ottobre 2016

Ultimo verificato

1 ottobre 2016

Maggiori informazioni

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

Sottoscrivi