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Every participant receives an active treatment — no one gets a placebo.
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At a Glance
Age
60 and older
Sex
Any
Trial phase
Phase 1
Study type
Interventional
Purpose
Treatment
Participants needed
60 (estimated)
Sponsor
University of California, San Diego · Other
Who this trial is looking for
This trial is looking for older adults with Mild Cognitive Impairment or early to moderate Alzheimer's Disease. Participants will follow a diet that involves fasting for 14 hours each night for 3 to 6 months and will visit the clinic for check-ups and tests during that time.
Are You a Good Fit for This Trial?
Must not be takingInsulin
Rules you outDiabetes
You may be able to join if
I am 60 years or older.
I have been diagnosed with Mild Cognitive Impairment or Alzheimer's Disease.
I am in good health according to my medical history.
I can complete cognitive tests and provide blood samples.
I usually fast for less than 12 hours each night.
I have a partner who is cognitively normal and scores above 26 on the MoCA test.
You may not be able to join if
I have another neurodegenerative condition.
I have cognitive impairment not related to Alzheimer's Disease.
I have been diagnosed with diabetes.
I have used insulin in the past 6 months.
I started a new medication for MCI or Alzheimer's Disease in the last 3 months.
I take any medication that affects appetite.
I have a history of disordered eating.
I am currently working shifts.
Summarized in plain language from this trial's official eligibility criteria.
The full criteria are further down this page — only the research team can
confirm whether you qualify.
Think this trial could be right for you?
Answer three quick questions written from this study's own rules to see if you may qualify. No account needed to find out.
The goal of this clinical trial is to learn if restricting the time of eating to allow for prolonged fasting at night may reduce sleep disturbances, cognitive decay, and pathology in patients diagnosed with Mild Cognitive Impairment (MCI) or early to moderate Alzheimer's disease (AD). It will also learn about the feasibility of practicing 14 h of nightly fasting in this group of older adults. The …
The goal of this clinical trial is to learn if restricting the time of eating to allow for prolonged fasting at night may reduce sleep disturbances, cognitive decay, and pathology in patients diagnosed with Mild Cognitive Impairment (MCI) or early to moderate Alzheimer's disease (AD). It will also learn about the feasibility of practicing 14 h of nightly fasting in this group of older adults. The main questions it aims to answer are:
* Does prolonged nightly fasting of 14 h can reduce markers of AD pathology and aging and reduce cognitive and sleep alterations in MCI and AD patients?
* Can patients with MCI and early /moderate AD sustain time-restricted eating for 3 to 6 months? Researchers will compare participants who fast for 14 h per night during 3 months to those who fast for less than 12 h/night. Researchers will also compare participants that fast for 3 months to those who fast during 6 months, to determine the effective duration of the intervention. Finally, researchers will evaluate whether following the time-restricted eating diet alongside a partner actively following the same diet, will increase adherence to the protocol compared to subjects that fast alone.
Participants will:
* Fast for 14 h a night (stop eating at 8 pm and start eating the following morning at 10 am) for 3 or 6 months
* Visit the clinic three times (at the beginning of the study, 6 and 12 months later)
* Provide blood samples and take a cognitive test during clinic visits
* Keep a diary (or use an app on a smart phone) to record time of eating
* Wear an activity tracker watch
Trial Locations
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Eligibility Criteria
Provision of signed and dated informed consent form. Stated willingness to comply with all study procedures and availability for the duration of the study.
Inclusion criteria
1. Persons, aged ≥60 years
2. In good general health as evidenced by medical history or diagnosed with clinical diagnosis o…
Provision of signed and dated informed consent form. Stated willingness to comply with all study procedures and availability for the duration of the study.
Inclusion criteria
1. Persons, aged ≥60 years
2. In good general health as evidenced by medical history or diagnosed with clinical diagnosis of MCI/AD: meeting research consensus criteria for probable MCI or dementia due to AD, requiring positive amyloid biomarkers in brain or cerebrospinal fluid (CSF) obtained at their regular point of care or study referral no longer than 3 months prior to screening.
3. Ability and willingness to complete cognitive evaluations, blood draw, actigraphy monitoring and to record fasting times daily.
4. Daily night fasting \<12h at baseline. Ability and willingness to follow an eating protocol of prolonged night fasting for 14 h
5. For cognitively normal living partners in the dyads group, scores \>26 in the Montreal Cognitive Assessment (MoCA) test administered at screening.
Exclusion Criteria:
1. Clinical diagnosis with a neurodegenerative condition other than MCI/AD.
2. Presenting cognitive impairment not due to AD.
3. Clinical diagnoses of diabetes.
4. Actively using insulin in the past 6 months.
5. Started a new medication (or changed doses) indicated for the treatment of MCI/AD in the last three months prior to enrollment.
6. Currently taking any medication known to affect appetite, inlcuding but not limited to GLP-1 agonists.
7. Any history of disordered eating, including difficulty swallowing and refusal to eat.
8. Currently engaged in shift work.
9. In treatment with another investigational drug.
10. Body Mass Index (BMI) \<20. or \>35
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