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Introduction Given that exercise training reduces the risk of developing Alzheimer's disease (AD), induces changes in the blood composition and has widespread systemic benefits, it is reasonable to hypothesize that exercised plasma may have rejuvenative properties. The main objective is to test safety and tolerability of transfusing exercised plasma (ExPlas) from young, healthy, fit adults to patients with early AD. The study is a pilot for a future efficacy study. The key secondary objectives are examining the effect of plasma transfusions on cognitive function, fitness level, vascular risk profile, assessment of cerebral blood flow and hippocampal volume, quality of life, functional connectivity assessed by resting state functional MRI and biomarkers in blood and cerebrospinal fluid. Methods and analysis ExPlas is a double-blinded, randomized controlled clinical single center trial. Patients aged 50-75 years with diagnosis mild cognitive impairment or early AD will be recruited from two Norwegian hospitals. ExPlas is plasma drawn by plasmapheresis once a month for 4 months, from a total of 30 donors (aged 18-40, BMI ≤27 kg/m2 and VO2max >50 mL/kg/min). All units will be virus inactivated by the Intercept method in accordance with procedures at St. Olavs Hospital. Comparison with isotonic saline allows differentiation from a non-blood product. The main study consists of 6 rounds of examinations in addition to 12 plasma transfusions divided over three 4-weeks periods during study year-1. Follow-up examinations after 2 and 5 years after baseline is also planned. Ethics and dissemination Written informed consent will be obtained from all participants and participation is voluntary. All participants have a next of kin who will follow them throughout the study and represent the patient's interest. The study is approved by the Regional Committee for Medical and Health Research Ethics (REK 2018/702) and the Norwegian Medicines Agency (EudraCT No. 2018-000148-24).


Clinical Trial Description

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NCT number NCT05068830
Study type Interventional
Source Norwegian University of Science and Technology
Contact Atefe R. Tari
Phone +47 48079041
Email [email protected]
Status Recruiting
Phase Phase 2
Start date September 17, 2021
Completion date September 2025

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