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Related Experiment Videos

Neuropeptides: ACTH-peptides in dementia.

P Kragh-Sørensen, R B Olsen, S Lund

    Progress in Neuro-Psychopharmacology & Biological Psychiatry
    |January 1, 1986
    PubMed
    Summary
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    The neuropeptide Org 2766 showed a significant, though small, therapeutic effect in demented patients with Parkinson

    Area of Science:

    • Neuroscience
    • Pharmacology
    • Geriatrics

    Background:

    • Adrenocorticotropic hormone (ACTH) neuropeptides are explored for treating cognitive decline.
    • Focus on ACTH4-10 and the modified ACTH4-9 fragment, Org 2766, for oral administration.
    • Relevance of animal and human studies for clinical effects in dementia.

    Purpose of the Study:

    • To review studies on ACTH neuropeptides for treating demented patients.
    • To present results from a placebo-controlled dose-finding study of Org 2766 in Parkinson's disease with dementia (PDSD) patients.

    Main Methods:

    • Review of pharmacological and clinical data on ACTH4-10 and Org 2766.
    • Placebo-controlled, dose-finding study involving 156 PDSD patients treated with Org 2766.
    • Assessment of therapeutic effects using the SCAG total score and factor scores.

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    Main Results:

    • Org 2766 demonstrated a significant therapeutic effect in PDSD patients, primarily on the SCAG total score.
    • The observed improvement was modest (average 4 points on SCAG total), with clinically relevant effects in only 25% of patients.
    • Analyses suggested effects on cognitive and somatic functions, but a clear dose-response relationship was not established.

    Conclusions:

    • Org 2766 shows potential therapeutic benefits for specific aspects of dementia in PDSD patients.
    • Further confirmation by other researchers is necessary to establish the efficacy of Org 2766.
    • The study highlights the need for replication to validate findings on Org 2766's efficacy in dementia treatment.