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This database contains 201 studies, archived under the term: "double-blind method"

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Effects of errorless skill learning in people with mild-to-moderate or severe dementia: a randomized controlled pilot study

This pilot study examines whether learning without errors is advantageous compared to trial-and-error learning in people with dementia using a procedural task and a randomized case-control design. A sample of 60 people was recruited, consisting of 20 patients with severe dementia, 20 patients with mild-to-moderate dementia and 20 participants without dementia. The participants had to […]

Safety and tolerability of the rivastigmine patch: results of a 28-week open-label extension

The primary objective of the open-label extension was to evaluate the long-term safety and tolerability of a transdermal rivastigmine patch up to 1 year, as a novel approach to treatment in Alzheimer disease. This was a 28-week extension to a 24-week, double-blind, double-dummy, placebo-controlled, and active-controlled study evaluating rivastigmine patches [9.5 mg/24 h (10 cm2) […]

Effect of tarenflurbil on cognitive decline and activities of daily living in patients with mild Alzheimer disease: a randomized controlled trial

Context: Amyloid-beta peptide (Abeta(42)) has been implicated in the pathogenesis of Alzheimer disease (AD). Tarenflurbil, a selective Abeta(42)-lowering agent, demonstrated encouraging results on cognitive and functional outcomes among mildly affected patients in an earlier phase 2 trial.; Objective: To determine the efficacy, safety, and tolerability of tarenflurbil.; Design, Setting, and Patients: A multicenter, randomized, double-blind, […]

Melatonin fails to improve sleep or agitation in double-blind randomized placebo-controlled trial of institutionalized patients with Alzheimer disease

Objectives: Patients with Alzheimer dementia often display both agitated behavior and poor sleep. Given that the disease is often associated with low endogenous levels of melatonin, exogenous melatonin administration may lead to improvements in sleep and agitation.; Design: Randomized, placebo-controlled study.; Setting: Nursing homes in San Diego, CA, metropolitan area.; Participants: Subjects were patients with […]

Effects of omega-3 fatty acids on inflammatory markers in cerebrospinal fluid and plasma in Alzheimer’s disease: the OmegAD study

Background: omega-3 fatty acids (omega-3 FAs) found in dietary fish or fish oils are anti-inflammatory agents that may influence Alzheimer’s disease (AD).; Objective: To study the effects of dietary omega-3 FA supplementation on inflammatory markers in cerebrospinal fluid (CSF) and plasma from patients with mild to moderate AD.; Methods: Thirty-five patients (70.3 +/- 8.2 years) […]

Tetrabenazine as anti-chorea therapy in Huntington disease: an open-label continuation study. Huntington Study Group/TETRA-HD Investigators

Background: Tetrabenazine (TBZ) selectively depletes central monoamines by reversibly binding to the type-2 vesicular monoamine transporter. A previous double blind study in Huntington disease (HD) demonstrated that TBZ effectively suppressed chorea, with a favorable short-term safety profile (Neurology 2006;66:366-372). The objective of this study was to assess the long-term safety and effectiveness of TBZ for […]

Donepezil treatment of patients with MCI: a 48-week randomized, placebo-controlled trial

Background: Treatment of mild cognitive impairment (MCI) with cholinesterase inhibitors may improve symptoms.; Methods: In this multicenter, randomized, placebo-controlled trial, subjects with MCI entered a 3-week placebo run-in period followed by 48 weeks of double-blind donepezil (5 mg/day for 6 weeks, then 10 mg/day for 42 weeks) or placebo treatment. Primary efficacy variables included change […]

A pilot study using nabilone for symptomatic treatment in Huntington’s disease

Pilot study of nabilone in Huntington’s disease (HD). Double-blind, placebo-controlled, cross-over study of nabilone versus placebo. Primary outcome, Unified Huntington’s Disease Rating Scale (UHDRS) total motor score. Secondary measures: UHDRS subsections for chorea, cognition and behavior, and neuropsychiatric inventory (NPI). 44 randomized patients received either nabilone (1 or 2 mg) followed by placebo (n = […]

Randomized controlled trial of atomoxetine for cognitive dysfunction in early Huntington disease

Background: Cognitive symptoms are associated with functional disability in Huntington disease; yet, few controlled trials have examined cognitive treatments that could improve patient independence and quality of life. Atomoxetine is a norepinephrine reuptake inhibitor approved for treatment of attention-deficit/hyperactivity disorder.; Methods: Twenty participants with mild Huntington disease who complained of inattention were randomized to receive […]

Reduced TNF-α and increased IGF-I levels in the serum of Alzheimer’s disease patients treated with the neurotrophic agent cerebrolysin

According to current scientific knowledge, excess tumour necrosis factor-α (TNF-α) and low insulin-like growth factor-I (IGF-I) are pathogenic-risk factors that constitute therapeutic targets for Alzheimer’s disease (AD). Changes in serum TNF-α, total and dissociable IGF-I levels were determined by ELISA in 207 AD patients completing a 24-wk, double-blind, placebo-controlled trial to evaluate the effects of […]

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