Abstract Title:

A 22-week, multicenter, randomized, double-blind controlled trial of Crocus sativus in the treatment of mild-to-moderate Alzheimer's disease.

Abstract Source:

Psychopharmacology (Berl). 2010 Jan;207(4):637-43. Epub 2009 Oct 20. PMID: 19838862

Abstract Author(s):

Shahin Akhondzadeh, Mehdi Shafiee Sabet, Mohammad Hossein Harirchian, Mansoreh Togha, Hamed Cheraghmakani, Soodeh Razeghi, Seyyed Shamssedin Hejazi, Mohammad Hossein Yousefi, Roozbeh Alimardani, Amirhossein Jamshidi, Shams-Ali Rezazadeh, Aboulghasem Yousefi, Farhad Zare, Atbin Moradi, Ardalan Vossoughi

Article Affiliation:

Psychiatric Research Center, Roozbeh Psychiatric Hospital, Tehran University of Medical Sciences, South Kargar Street, Tehran 13337, Iran. [email protected]

Abstract:

RATIONALE: There is increasing evidence to suggest the possible efficacy of Crocus sativus (saffron) in the management of Alzheimer's disease (AD).

OBJECTIVE: The purpose of the present investigation was to assess the efficacy of C. sativus in the treatment of patients with mild-to-moderate AD.

METHODS: Fifty-four Persian-speaking adults 55 years of age or older who were living in the community were eligible to participate in a 22-week, double-blind study of parallel groups of patients with AD. The main efficacy measures were the change in the Alzheimer's Disease Assessment Scale-cognitive subscale and Clinical Dementia Rating Scale-Sums of Boxes scores compared with baseline. Adverse events (AEs) were systematically recorded. Participants were randomly assigned to receive a capsule saffron 30 mg/day (15 mg twice per day) or donepezil 10 mg/day (5 mg twice per day).

RESULTS: Saffron at this dose was found to be effective similar to donepezil in the treatment of mild-to-moderate AD after 22 weeks. The frequency of AEs was similar between saffron extract and donepezil groups with the exception of vomiting, which occurred significantly more frequently in the donepezil group.

CONCLUSION: This phase II study provides preliminary evidence of a possible therapeutic effect of saffron extract in the treatment of patients with mild-to-moderate Alzheimer's disease. This trial is registered with the Iranian Clinical Trials Registry (IRCT138711051556N1).

Study Type : Human Study

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