Page last updated: 2024-10-20

urea and Dementia

urea has been researched along with Dementia in 19 studies

pseudourea: clinical use; structure
isourea : A carboximidic acid that is the imidic acid tautomer of urea, H2NC(=NH)OH, and its hydrocarbyl derivatives.

Dementia: An acquired organic mental disorder with loss of intellectual abilities of sufficient severity to interfere with social or occupational functioning. The dysfunction is multifaceted and involves memory, behavior, personality, judgment, attention, spatial relations, language, abstract thought, and other executive functions. The intellectual decline is usually progressive, and initially spares the level of consciousness.

Research Excerpts

ExcerptRelevanceReference
"In a trial that was stopped early for efficacy, patients with dementia-related psychosis who had a response to pimavanserin had a lower risk of relapse with continuation of the drug than with discontinuation."9.41Trial of Pimavanserin in Dementia-Related Psychosis. ( Ballard, C; Cummings, JL; Devanand, DP; Erten-Lyons, D; Foff, EP; McEvoy, B; Soto-Martin, ME; Stankovic, S; Sultzer, DL; Tariot, PN; Weintraub, D; Youakim, JM, 2021)
"We report a successful case of sedation during spinal anesthesia using continuous administration of landiolol and dexmedetomidine in a patient with severe dementia."7.81[Successful sedation with landiolol and dexmedetomidine during spinal anesthesia in a patient with active dementia]. ( Deguchi, S; Fujiwara, S; Kido, H; Komasawa, N; Minami, T, 2015)
"Pimavanserin may prove beneficial in treating the hallucinations and delusions of DRP without worsening cognitive or motor function."6.82Dementia-related psychosis and the potential role for pimavanserin. ( Cummings, JL; Devanand, DP; Stahl, SM, 2022)
"In a Phase 2 study with pimavanserin in Alzheimer's disease psychosis, pimavanserin significantly (p=0."6.58Pimavanserin: Potential Treatment For Dementia-Related Psychosis. ( Ballard, C; Cummings, J; Foff, E; Norton, J; Owen, R; Stankovic, S; Tariot, P; Youakim, J, 2018)
"In a trial that was stopped early for efficacy, patients with dementia-related psychosis who had a response to pimavanserin had a lower risk of relapse with continuation of the drug than with discontinuation."5.41Trial of Pimavanserin in Dementia-Related Psychosis. ( Ballard, C; Cummings, JL; Devanand, DP; Erten-Lyons, D; Foff, EP; McEvoy, B; Soto-Martin, ME; Stankovic, S; Sultzer, DL; Tariot, PN; Weintraub, D; Youakim, JM, 2021)
" Mortality analyses were adjusted for age, sex, levodopa equivalent daily dose (LEDD), and dementia."4.31Assessing the risks of treatment in Parkinson disease psychosis: An in-depth analysis. ( Alakkas, A; Liu, L; Longardner, K; Nahab, FB; Wright, BA; Xu, R; You, H, 2023)
"Active cancer, dementia, and high values for urea and RDW at admission are predictors of one-year mortality in patients hospitalized for HF."4.31One-year mortality after hospitalization for acute heart failure: Predicting factors (PRECIC study subanalysis). ( Lopes Ramos, R; Marques, I; Mendonça, D; Teixeira, L, 2023)
"We report a successful case of sedation during spinal anesthesia using continuous administration of landiolol and dexmedetomidine in a patient with severe dementia."3.81[Successful sedation with landiolol and dexmedetomidine during spinal anesthesia in a patient with active dementia]. ( Deguchi, S; Fujiwara, S; Kido, H; Komasawa, N; Minami, T, 2015)
"Pimavanserin may prove beneficial in treating the hallucinations and delusions of DRP without worsening cognitive or motor function."2.82Dementia-related psychosis and the potential role for pimavanserin. ( Cummings, JL; Devanand, DP; Stahl, SM, 2022)
" By measuring the brain function using computer period analysis of cerebral biopotentials, dose-efficacy relations were found (in the range of 25-75 mcg) which suggest the bioavailability of LHM at the CNS level."2.64Prediction of psychotropic properties of lisuride hydrogen maleate by quantitative pharmaco-electroencephalogram. ( Akpinar, S; Herrmann, WM; Itil, TM, 1975)
"In a Phase 2 study with pimavanserin in Alzheimer's disease psychosis, pimavanserin significantly (p=0."2.58Pimavanserin: Potential Treatment For Dementia-Related Psychosis. ( Ballard, C; Cummings, J; Foff, E; Norton, J; Owen, R; Stankovic, S; Tariot, P; Youakim, J, 2018)
"Dementia associated with Parkinson's disease (PDD) is a common problem and one that is associated with significant morbidity and mortality."2.46Parkinson's disease dementia. ( Burn, DJ; Docherty, MJ, 2010)

Research

Studies (19)

TimeframeStudies, this research(%)All Research%
pre-19906 (31.58)18.7374
1990's1 (5.26)18.2507
2000's1 (5.26)29.6817
2010's3 (15.79)24.3611
2020's8 (42.11)2.80

Authors

AuthorsStudies
Tariot, PN2
Ballard, C3
Devanand, DP3
Cummings, JL3
Sultzer, DL2
Schneider, LS1
Longardner, K1
Wright, BA1
Alakkas, A1
You, H1
Xu, R1
Liu, L1
Nahab, FB1
Marques, I1
Lopes Ramos, R1
Mendonça, D1
Teixeira, L1
Stahl, SM1
Soto-Martin, ME1
Erten-Lyons, D1
Weintraub, D1
McEvoy, B1
Youakim, JM1
Stankovic, S2
Foff, EP1
Friedman, JI1
Liu, KY1
Howard, R1
Cummings, J1
Tariot, P1
Owen, R1
Foff, E1
Youakim, J1
Norton, J1
Deguchi, S1
Komasawa, N1
Fujiwara, S1
Kido, H1
Minami, T1
Docherty, MJ1
Burn, DJ1
Belorgey, D1
Sharp, LK1
Crowther, DC1
Onda, M1
Johansson, J1
Lomas, DA1
Selkoe, DJ1
Ihara, Y1
Salazar, FJ1
Anderton, B1
Tokutake, S1
Oyanagi, S1
Itil, TM1
Herrmann, WM1
Akpinar, S1
Murray, RM1
Greene, JG1
Adams, JH1
Hsia, YE1
Thomas, JH1

Clinical Trials (1)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
A Double-blind, Placebo-controlled, Relapse Prevention Study of Pimavanserin for the Treatment of Hallucinations and Delusions Associated With Dementia-related Psychosis[NCT03325556]Phase 3392 participants (Actual)Interventional2017-09-27Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

Time From Randomization to Discontinuation From the DB Period for Any Reason

The endpoint of time from randomization to discontinuation from the DB period for any reason (other than termination of the study by the sponsor) was compared between treatment groups using a Cox regression model. The treatment effect was measured by the HR. (NCT03325556)
Timeframe: From randomization in the DB period through 26 weeks

Interventiondays (Median)
Pimavanserin Double-Blind PeriodNA
Placebo Double-Blind PeriodNA

Time From Randomization to Relapse in the Double-blind (DB) Period

"The time from randomization to relapse in the DB period was compared between treatment groups using a Cox regression model. The treatment effect was measured by the hazard ratio (HR).~Relapse was defined as (1) ≥30% increase in SAPS-H+D total score from DB baseline (BL) and CGI-I score ≥6 relative to DB BL, (2) treatment with antipsychotic for dementia-related delusions/hallucinations, (3) treatment/study discontinuation due to lack of efficacy, and/or (4) hospitalization for worsening dementia-related psychosis.~SAPS-H+D is a 20-item scale; the total score is the sum of the 20 item scores (range 0-100); higher scores denote more severe symptoms. CGI-I is a clinician-rated 7-point scale to rate improvement in hallucinations/delusions relative to BL (range 1-7); higher scores denote less improvement or worsening.~A pre-specified IA was conducted after accrual of 40 adjudicated relapse events. The prespecified stopping criterion was met; the study was stopped for efficacy." (NCT03325556)
Timeframe: From randomization in the DB period through 26 weeks

Interventiondays (Median)
Pimavanserin Double-Blind PeriodNA
Placebo Double-Blind PeriodNA

Reviews

4 reviews available for urea and Dementia

ArticleYear
Dementia-related psychosis and the potential role for pimavanserin.
    CNS spectrums, 2022, Volume: 27, Issue:1

    Topics: Dementia; Hallucinations; Humans; Parkinson Disease; Piperidines; Psychotic Disorders; Urea

2022
Pimavanserin: Potential Treatment For Dementia-Related Psychosis.
    The journal of prevention of Alzheimer's disease, 2018, Volume: 5, Issue:4

    Topics: Alzheimer Disease; Clinical Trials as Topic; Dementia; Humans; Mental Status and Dementia Tests; Par

2018
Parkinson's disease dementia.
    Current neurology and neuroscience reports, 2010, Volume: 10, Issue:4

    Topics: Cholinesterase Inhibitors; Clinical Trials as Topic; Dementia; Diagnosis, Differential; Humans; Park

2010
Inherited hyperammonemic syndromes.
    Gastroenterology, 1974, Volume: 67, Issue:2

    Topics: Acidosis; Amino Acids; Ammonia; Animals; Arginine; Brain; Brain Diseases; Chemical and Drug Induced

1974

Trials

2 trials available for urea and Dementia

ArticleYear
Trial of Pimavanserin in Dementia-Related Psychosis.
    The New England journal of medicine, 2021, 07-22, Volume: 385, Issue:4

    Topics: Aged; Aged, 80 and over; Antipsychotic Agents; Dementia; Double-Blind Method; Female; Hallucinations

2021
Prediction of psychotropic properties of lisuride hydrogen maleate by quantitative pharmaco-electroencephalogram.
    International journal of clinical pharmacology and biopharmacy, 1975, Volume: 12, Issue:1-2

    Topics: Adolescent; Adult; Aged; Biological Availability; Child; Child, Preschool; Clinical Trials as Topic;

1975

Other Studies

13 other studies available for urea and Dementia

ArticleYear
Pimavanserin and dementia-related psychosis.
    The Lancet. Neurology, 2022, Volume: 21, Issue:2

    Topics: Dementia; Humans; Piperidines; Psychotic Disorders; Urea

2022
The Safety of Pimavanserin for Parkinson's Disease and Efforts to Reduce Antipsychotics for People With Dementia.
    The American journal of psychiatry, 2022, Volume: 179, Issue:8

    Topics: Antipsychotic Agents; Dementia; Humans; Parkinson Disease; Piperidines; Psychotic Disorders; Urea

2022
Assessing the risks of treatment in Parkinson disease psychosis: An in-depth analysis.
    PloS one, 2023, Volume: 18, Issue:1

    Topics: Aged; Antipsychotic Agents; Dementia; Humans; Levodopa; Parkinson Disease; Prospective Studies; Psyc

2023
One-year mortality after hospitalization for acute heart failure: Predicting factors (PRECIC study subanalysis).
    Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology, 2023, Volume: 42, Issue:6

    Topics: Aged; Aged, 80 and over; Dementia; Erythrocyte Indices; Heart Failure; Hospitalization; Humans; Prog

2023
Pimavanserin in Dementia-Related Psychosis.
    The New England journal of medicine, 2021, 07-22, Volume: 385, Issue:4

    Topics: Dementia; Humans; Piperidines; Psychotic Disorders; Urea

2021
Pimavanserin and dementia-related psychosis: can HARMONY prevail?
    The Lancet. Neurology, 2021, Volume: 20, Issue:10

    Topics: Clinical Trials as Topic; Dementia; Humans; Piperidines; Psychotic Disorders; Urea

2021
[Successful sedation with landiolol and dexmedetomidine during spinal anesthesia in a patient with active dementia].
    Masui. The Japanese journal of anesthesiology, 2015, Volume: 64, Issue:1

    Topics: Aged, 80 and over; Anesthesia, Spinal; Dementia; Dexmedetomidine; Femoral Fractures; Humans; Hypnoti

2015
Neuroserpin Portland (Ser52Arg) is trapped as an inactive intermediate that rapidly forms polymers: implications for the epilepsy seen in the dementia FENIB.
    European journal of biochemistry, 2004, Volume: 271, Issue:16

    Topics: Amino Acid Substitution; Arginine; Biopolymers; Catalysis; Circular Dichroism; Dementia; Epilepsy; H

2004
Alzheimer's disease: insolubility of partially purified paired helical filaments in sodium dodecyl sulfate and urea.
    Science (New York, N.Y.), 1982, Mar-05, Volume: 215, Issue:4537

    Topics: Alzheimer Disease; Cerebral Cortex; Cytoskeleton; Dementia; gamma-Glutamyltransferase; Humans; Micro

1982
Untangling insoluble filaments.
    Nature, 1983, Jan-13, Volume: 301, Issue:5896

    Topics: Acyltransferases; Alzheimer Disease; Dementia; Guanidine; Guanidines; Humans; Neurofibrils; Octoxyno

1983
Mechanical instability of Pick bodies and their isolation in an intact form using urea solution.
    Neuroscience letters, 1993, Nov-26, Volume: 163, Issue:1

    Topics: Brain; Dementia; Female; Hematoxylin; Humans; Inclusion Bodies; Microscopy, Electron; Middle Aged; N

1993
Analgesics abuse and dementia.
    Lancet (London, England), 1971, Jul-31, Volume: 2, Issue:7718

    Topics: Aged; Analgesics; Aspirin; Brain; Dementia; Female; Humans; Intelligence Tests; Male; Middle Aged; P

1971
Values of serum iron in patients over sixty.
    Gerontologia clinica, 1971, Volume: 13, Issue:1

    Topics: Aged; Anemia, Hypochromic; Anemia, Pernicious; Arthritis, Rheumatoid; Circadian Rhythm; Dementia; Fe

1971