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SleepNCT03840083

Sleep-dependent Learning in Aging

A study testing Sleep in people with Sleep, run by University of Massachusetts, Amherst at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The specific objective of this proposed research is to understand whether deficits in sleep-dependent memory changes reflect age-related changes in sleep, memory, or both. The central hypothesis is that changes in both memory and sleep contribute to age-related changes in sleep-dependent memory processing. Read more about this study

Who is it for?
Ages 18 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Sleep
What is being tested?
Sleep
Could I receive a placebo?
No, everyone receives an active treatment
How many people
584 participants
Where
1 siteUnited States
Study dates
15 Jul 2018to 15 Jul 2025
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Age 18-80 yrs
  • Healthy sleeper
  • No diagnosed sleep or neurodegenerative disorder

Who cannot join

  • Past diagnosis of any sleep disorder or evidence of a sleep disorder as assessed by self-reported sleep quality assessments, a standardized diagnostic interview, and an acclimation night of polysomnography. Using acclimation-night polysomnography, participants will be excluded with an Apnea-Hypopnea Index >15; a Period-Limb Movement in Sleep index of >15/hr; sleep-onset latency > 45 min (indicative of insomnia); or sleep efficiency < 80% (see Edinger et al., Sleep, 2004). In cases in which questions arise regarding a participants' inclusion or sleep records, a practicing neurologist board-certified in sleep medicine will review the documentation.
  • Past diagnosis neurological illness or head injury
  • Reported average sleep per night < 5 or > 9 hrs
  • Current employment involving shift work or an inability to keep a regular sleep schedule during the week prior to testing
  • Current use of psychotropic, recreational drugs, or sleep-altering medications (sleep medications, cold medicines within the past week, clonidine, sympathomimetic stimulants)
  • Daily caffeine intake of > 4 cups (coffee, tea, colas)
Show all 18Show fewer
  • Weekly alcohol intake of > 10 cups
  • Pregnancy or < 12 months post-partum
  • History of bipolar disorder, mania, or current evidence of depression as measured by Beck Depression Inventory score > 25
  • Abnormal sleep (e.g., shift work, travel across >2 time zones within the past 3 months).
  • Diagnosis of any Axis I disorder, neurological illness or head injury (according to Demographic and Health History form);
  • Score indicative of cognitive dysfunction (subtest scores < 40)
  • Beck Depression Scale score indicative of depression (> 19).
  • Additionally, individuals will be excluded from magnetic resonance imaging studies (Exps 1, 4) for:
  • Left handed or ambidextrous
  • Claustrophobia
  • Presence of metal (thoroughly screened via questionnaire and metal detector)
  • Pregnancy

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site, 1 recruiting
  • University of Massachusetts

    Amherst, Massachusetts, 01003

    Mary Emma Searles, 413-545-4831, msearles@umass.edu

    Recruiting

Other trials in United States

About this study

Official title: What is Sleep's Role in Alzheimer's Disease? Insight From Healthy Aging

The specific objective of this proposed research is to understand whether deficits in sleep-dependent memory changes reflect age-related changes in sleep, memory, or both. The central hypothesis is that changes in both memory and sleep contribute to age-related changes in sleep-dependent memory processing. To this end, the investigators will investigate changes in learning following intervals of sleep (overnight and nap) and wake in young and older adults.

Read the detailed description

Exp 1: Using neuroimaging, the investigators will consider whether differences in brain areas engaged during memory encoding contribute to age-related changes in sleep-dependent memory consolidation for a word-pair learning task.

Exp 2: The investigators will examine the rate of memory decay between encoding and sleep using two probes of declarative memory (word-pair learning and visuo-spatial learning).

Exp 3: The investigators will provide additional opportunity for encoding of the word-pair and visuo-spatial learning tasks.

Exp 4: Using neuroimaging, the investigators will examine neural engagement during encoding and performance following intervals of sleep and wake.

Exp 5: The investigators will examine the rate of decay of motor sequence learning.

Exp 6: The investigators will examine whether enhanced training ('overtraining') improves sleep-dependent memory consolidation for older adults.

Conditions
Sleep
Being tested
Sleep

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SleepBehavioural

    Participants will sleep (either a mid-day nap or normal overnight sleep)

Study groups in NCT03840083
Study groupRoleWhat they receive
SleepExperimentalIndividuals will either nap (Exps 1, 4) or have overnight sleep (Exps 2, 3, 5, 6)
Receives: Behavioral: Sleep
WakeNo interventionIndividuals will stay awake for the same amount of time as they slept in the sleep condition

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in memory accuracy for intervention compared to control

    We will measure memory accuracy before the sleep/wake interval and subtract this from memory accuracy after the sleep wake interval. If sleep benefits memory then this value will be greater in the sleep condition compared to the wake condition.

    Measured: 2 hours (Experiments 1,4) or 12 hours (Experiments 2,3,5,6)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Feb 2019
  2. Study start15 Jul 2018
  3. Primary completion14 Jul 2025 (estimated)
  4. Study completion15 Jul 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
584 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03840083
Sponsor's protocol ID
2017-4290
Status last verified
Mar 2025
First submitted
4 Feb 2019
Last updated
3 Apr 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Sleep in people with Sleep, run by University of Massachusetts, Amherst at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 18 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 3 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in memory accuracy for intervention compared to control (time frame: 2 hours (Experiments 1,4) or 12 hours (Experiments 2,3,5,6)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Apr 2025.

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