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  • Hornslien, Astrid G., et al. (författare)
  • Effects of candesartan in acute stroke on vascular events during long-term follow-up : results from the Scandinavian Candesartan Acute Stroke Trial (SCAST)
  • 2015
  • Ingår i: International Journal of Stroke. - 1747-4930 .- 1747-4949. ; 10:6, s. 830-835
  • Tidskriftsartikel (refereegranskat)abstract
    • BackgroundRandomized-controlled trials have shown no beneficial short-term effects of blood pressure lowering treatment in the acute phase of stroke. AimWe aimed to see whether blood pressure lowering treatment with candesartan in the acute phase can lead to benefits that become apparent over a longer period of follow-up. MethodsThe Scandinavian Candesartan Acute Stoke Trial was a randomized- and placebo-controlled trial of candesartan in 2,029 patients with acute stroke and systolic blood pressure140mmHg. Trial treatment was given for seven-days, and the primary follow-up period was six-months. We have used the national patient registries and the cause of death registries in the Scandinavian countries to collect data on vascular events and deaths up to three-years from randomization. The primary end-point was the composite of stroke, myocardial infarction, or vascular death, and we used Cox proportional hazards regression model for analysis. ResultsLong-term data were available for 1,256 of the 1,286 patients (98%) from Scandinavia. The risk of the primary composite end-point did not differ significantly between the groups (candesartan 178/632 events, placebo 203/624 events, hazard ratio=087, 95% confidence interval 071-107). There were also no statistically significant differences for the secondary end-points stroke and all-cause death, or in any of the pre-specified subgroups. ConclusionsTreatment with candesartan in the acute phase of stroke was not associated with clear long-term clinical benefits. This result supports the conclusion from trials with short-term follow-up, that blood pressure lowering treatment with candesartan should not be given routinely to patients with acute stroke and raised blood pressure.
  • Kaste, Markku, et al. (författare)
  • Stroke unit care in Scandinavian countries
  • 2006
  • Ingår i: International Journal of Stroke. - : Wiley-Blackwell. - 1747-4949. ; 1:1, s. 44-44
  • Tidskriftsartikel (övrigt vetenskapligt)
  • Sandset, Else Charlotte, et al. (författare)
  • Angiotensin receptor blockade in acute stroke. The Scandinavian Candesartan Acute Stroke Trial : rationale, methods and design of a multicentre, randomised- and placebo-controlled clinical trial (NCT00120003)
  • 2010
  • Ingår i: International Journal of Stroke. - 1747-4930. ; 5:5, s. 423-427
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Elevated blood pressure following acute stroke is common, and yet early antihypertensive treatment is controversial. ACCESS suggested a beneficial effect of the angiotensin receptor blocker candesartan in the acute phase of stroke, but these findings need to be confirmed in new, large trials. Aims and design The Scandinavian Candesartan Acute Stroke Trial is an international randomised, placebo-controlled, double-blind trial of candesartan in acute stroke. We plan to recruit 2500 patients presenting within 30 h of stroke (ischaemic or haemorrhagic) and with systolic blood pressure >= 140 mmHg. The recruited patients are randomly assigned to candesartan or placebo for 7-days (doses increasing from 4 to 16 mg once daily). Randomisation is performed centrally via a secure web interface. The follow-up period is 6-months. Patients are included from the following nine North-European countries: Norway, Sweden, Denmark, Belgium, Germany, Poland, Lithuania, Estonia and Finland. Study outcomes There are two co-primary effect variables:center dot Functional status at 6-months, measured by the modified Rankin Scale, and center dot vascular death, myocardial infarction or stroke during the first 6-months.Secondary outcome variables:Secondary effect variables include center dot the Barthel index (functional status)center dot EuroQol (quality of life) and center dot Mini-mental state examination (cognition) at 6-months center dot Health economic costs during the first 6-months Funding The Scandinavian Candesartan Acute Stroke Trial receives basic funding from Norwegian health authorities. AstraZeneca supplies the trial drugs, and AstraZeneca and Takeda support the trial with limited, unrestricted grants. Summary The Scandinavian Candesartan Acute Stroke Trial is the first large trial of angiotensin receptor blockers in patients with elevated blood pressure and acute stroke, and aims to answer whether treatment with angiotensin receptor blockers is beneficial for this indication.
  • Sandset, Else Charlotte, et al. (författare)
  • The angiotensin-receptor blocker candesartan for treatment of acute stroke (SCAST) : a randomised, placebo-controlled, double-blind trial
  • 2011
  • Ingår i: The Lancet. - 0140-6736 .- 1474-547X. ; 377:9767, s. 741-750
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Raised blood pressure is common in acute stroke, and is associated with an increased risk of poor outcomes. We aimed to examine whether careful blood-pressure lowering treatment with the angiotensin-receptor blocker candesartan is beneficial in patients with acute stroke and raised blood pressure. Methods Participants in this randomised, placebo-controlled, double-blind trial were recruited from 146 centres in nine north European countries. Patients older than 18 years with acute stroke (ischaemic or haemorrhagic) and systolic blood pressure of 140 mm Hg or higher were included within 30 h of symptom onset. Patients were randomly allocated to candesartan or placebo (1:1) for 7 days, with doses increasing from 4 mg on day 1 to 16 mg on days 3 to 7. Randomisation was stratified by centre, with blocks of six packs of candesartan or placebo. Patients and investigators were masked to treatment allocation. There were two co-primary effect variables: the composite endpoint of vascular death, myocardial infarction, or stroke during the first 6 months; and functional outcome at 6 months, as measured by the modified Rankin Scale. Analyses were by intention to treat. The study is registered, number NCT00120003 (ClinicalTrials.gov), and ISRCTN13643354. Findings 2029 patients were randomly allocated to treatment groups (1017 candesartan, 1012 placebo), and data for status at 6 months were available for 2004 patients (99%; 1000 candesartan, 1004 placebo). During the 7-day treatment period, blood pressures were significantly lower in patients allocated candesartan than in those on placebo (mean 147/82 mm Hg [SD 23/14] in the candesartan group on day 7 vs 152/84 mm Hg [22/14] in the placebo group; p<0.0001). During 6 months' follow-up, the risk of the composite vascular endpoint did not differ between treatment groups (candesartan, 120 events, vs placebo, 111 events; adjusted hazard ratio 1.09, 95% CI 0.84-1.41; p=0.52). Analysis of functional outcome suggested a higher risk of poor outcome in the candesartan group (adjusted common odds ratio 1.17, 95% CI 100-138; p=0.048 [not significant at p <= 0.025 level]). The observed effects were similar for all prespecified secondary endpoints (including death from any cause, vascular death, ischaemic stroke, haemorrhagic stroke, myocardial infarction, stroke progression, symptomatic hypotension, and renal failure) and outcomes (Scandinavian Stroke Scale score at 7 days and Barthel index at 6 months), and there was no evidence of a differential effect in any of the prespecified subgroups. During follow-up, nine (1%) patients on candesartan and five (<1%) on placebo had symptomatic hypotension, and renal failure was reported for 18 (2%) patients taking candesartan and 13 (1%) allocated placebo. Interpretation There was no indication that careful blood-pressure lowering treatment with the angiotensin-receptor blocker candesartan is beneficial in patients with acute stroke and raised blood pressure. If anything, the evidence suggested a harmful effect.
  • Sprigg, Nikola, et al. (författare)
  • elationship between outcome and baseline blood pressure and other haemodynamic measures in acute ischaemic stroke : Data from the TAIST trial
  • 2006
  • Ingår i: Journal of Hypertension. - 0263-6352 .- 1473-5598. ; 24:7, s. 1413-1417
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: A poor outcome after stroke is associated independently with high blood pressure during the acute phase, however, relationships with other haemodynamic measures [heart rate (HR), pulse pressure (PP), rate-pressure product (RPP)] remain less clear. METHODS: The Tinzaparin in Acute Ischaemic Stroke Trial is a randomised, controlled trial assessing the safety and efficacy of tinzaparin versus aspirin in 1484 patients with acute ischaemic stroke. Systolic blood pressure (SBP), diastolic blood pressure (DBP) and HR measurements taken immediately prior to randomization were averaged, and the mid-blood pressure (MBP), PP, mean arterial pressure (MAP), pulse pressure index, and RPP were calculated. The relationship between these haemodynamic measures and functional outcome (death or dependency, modified Rankin Scale > 2) and early recurrent stroke, were studied with adjustment for baseline prognostic factors and treatment group. Odds ratios (OR) and 95% confidence intervals (CI) refer to a change in haemodynamic measure by 10 points. RESULTS: A poor functional outcome was associated with SBP (adjusted OR, 1.11, 95% CI, 1.03-1.21), HR (adjusted OR, 1.15, 95% CI, 1.00-1.31), MBP (adjusted OR, 1.15, 95% CI, 1.03-1.29), PP (adjusted OR, 1.14, 95% CI, 1.02-1.26), MAP (adjusted OR, 1.15, 95% CI, 1.02-1.31) and RPP (adjusted OR, 1.01, 95% CI, 1.00-1.02). Early recurrent stroke was associated with SBP, DBP, MBP and MAP. CONCLUSIONS: A poor outcome is independently associated with elevations in blood pressure, HR and their derived haemodynamic variables, including PP and the RPP. Agents that modify these measures may improve functional outcome after stroke. © 2006 Lippincott Williams & Wilkins.
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