NCT05929872

Brief Summary

Physiological aging is often associated with memory function decline. Recently, the use of transcranial direct current stimulation (tDCS), a type of non-invasive brain stimulation, has been combined with adaptive working memory training interventions in healthy older adults, providing evidence for a significant improvement in memory functions. To the best of our knowledge, no study addressed the use of strategic memory training coupled with the use of tDCS in normal aging. Strategic memory trainings allow to improve participants' performance in the practiced task and to generalize the use of memory strategies to new materials. This Randomized Controlled Trial (RCT) aims to evaluate the effectiveness of a combined intervention associating strategic memory training with the use of tDCS. Healthy older adults and participants with subjective cognitive decline will be recruited and randomly assigned to the experimental group (strategic memory training + ACTIVE tDCS) or the control group (strategic memory training + SHAM tDCS). All participants will be evaluated on transfer and practiced tasks before (T0) and after (T1) the treatment and during follow-up visits, scheduled at 1 month (T2) and 3 months (T3) after the intervention.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
56

participants targeted

Target at P25-P50 for not_applicable

Timeline
8mo left

Started Jul 2023

Longer than P75 for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress81%
Jul 2023Dec 2026

First Submitted

Initial submission to the registry

June 16, 2023

Completed
17 days until next milestone

First Posted

Study publicly available on registry

July 3, 2023

Completed
27 days until next milestone

Study Start

First participant enrolled

July 30, 2023

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2026

Last Updated

July 3, 2023

Status Verified

June 1, 2023

Enrollment Period

3.4 years

First QC Date

June 16, 2023

Last Update Submit

June 29, 2023

Conditions

Keywords

Healthy agingSubjective cognitive declineNon-pharmacological treatmentsMemory trainingTranscranial direct current stimulation

Outcome Measures

Primary Outcomes (3)

  • Associative learning test scores

    Participants are presented with 40 paired associates. Pairs consist of words chosen from Paivio, Yuille, and Madigan (1968) concreteness and imagery norms and from De Mauro, Mancini, Vedovelli, and Voghera (1993) word frequency norms. Each pair is printed in the middle of a 5 x 7 index card. The 40 cards are handed to participants, who are instructed to study the pairs for up to 20 minutes. After study, each stimulus is individually presented, and participants Are asked to write the corresponding response

    Immediately after the intervention program (T1).

  • Associative learning test scores

    Participants are presented with 40 paired associates. Pairs consist of words chosen from Paivio, Yuille, and Madigan (1968) concreteness and imagery norms and from De Mauro, Mancini, Vedovelli, and Voghera (1993) word frequency norms. Each pair is printed in the middle of a 5 x 7 index card. The 40 cards are handed to participants, who are instructed to study the pairs for up to 20 minutes. After study, each stimulus is individually presented, and participants Are asked to write the corresponding response

    1 month (T2) after the end of the intervention program.

  • Associative learning test scores

    Participants are presented with 40 paired associates. Pairs consist of words chosen from Paivio, Yuille, and Madigan (1968) concreteness and imagery norms and from De Mauro, Mancini, Vedovelli, and Voghera (1993) word frequency norms. Each pair is printed in the middle of a 5 x 7 index card. The 40 cards are handed to participants, who are instructed to study the pairs for up to 20 minutes. After study, each stimulus is individually presented, and participants Are asked to write the corresponding response

    3 months (T3) after the end of the intervention program.

Secondary Outcomes (15)

  • List learning tests scores

    Immediately after the intervention program (T1).

  • List learning tests scores

    1 month (T2) after the end of the intervention program.

  • List learning tests scores

    3 months (T3) after the end of the intervention program.

  • Name-face learning test scores

    Immediately after the intervention program (T1).

  • Name-face learning test scores

    1 month (T2) after the end of the intervention program.

  • +10 more secondary outcomes

Study Arms (2)

Experimental group

EXPERIMENTAL

The experimental group receives strategic memory training plus non-invasive brain stimulation (ACTIVE tDCS).

Other: Non-invasive brain stimulation

Control Group

SHAM COMPARATOR

The control group receives strategic memory training plus sham non-invasive brain stimulation (SHAM tDCS).

Other: Sham non-invasive brain stimulation

Interventions

ACTIVE transcranial direct current stimulation( tDCS)

Experimental group

SHAM tDCS

Control Group

Eligibility Criteria

Age65 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsOlder Adult (65+)

You may qualify if:

  • MMSE ≥ 24.
  • GDS \< e uguale 11.
  • Age between 65 and 85 years.
  • Educational level ≥ 5 years.

You may not qualify if:

  • Pre-existing cognitive impairment (e.g. aphasia, neglect).
  • Dementia.
  • Severe disturbances in consciousness.
  • Concomitant severe psychiatric disease or other neurological conditions (e.g. depression and behavioral disorders).
  • Motor or sensory diseases that may interfere with test execution or strategic memory training.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (11)

  • Antonenko D, Thams F, Grittner U, Uhrich J, Glockner F, Li SC, Floel A. Randomized trial of cognitive training and brain stimulation in non-demented older adults. Alzheimers Dement (N Y). 2022 Feb 23;8(1):e12262. doi: 10.1002/trc2.12262. eCollection 2022.

    PMID: 35229023BACKGROUND
  • Assecondi S, Hu R, Kroeker J, Eskes G, Shapiro K. Older adults with lower working memory capacity benefit from transcranial direct current stimulation when combined with working memory training: A preliminary study. Front Aging Neurosci. 2022 Oct 10;14:1009262. doi: 10.3389/fnagi.2022.1009262. eCollection 2022.

    PMID: 36299611BACKGROUND
  • Bottiroli S, Cavallini E, Dunlosky J, Vecchi T, Hertzog C. The importance of training strategy adaptation: a learner-oriented approach for improving older adults' memory and transfer. J Exp Psychol Appl. 2013 Sep;19(3):205-18. doi: 10.1037/a0034078. Epub 2013 Aug 26.

    PMID: 23978160BACKGROUND
  • Grady C. The cognitive neuroscience of ageing. Nat Rev Neurosci. 2012 Jun 20;13(7):491-505. doi: 10.1038/nrn3256.

    PMID: 22714020BACKGROUND
  • Kane MJ, Engle RW. Working-memory capacity and the control of attention: the contributions of goal neglect, response competition, and task set to Stroop interference. J Exp Psychol Gen. 2003 Mar;132(1):47-70. doi: 10.1037/0096-3445.132.1.47.

    PMID: 12656297BACKGROUND
  • Lu H, Cheng PL, Lim BK, Khoshnevisrad N, Poo MM. Elevated BDNF after cocaine withdrawal facilitates LTP in medial prefrontal cortex by suppressing GABA inhibition. Neuron. 2010 Sep 9;67(5):821-33. doi: 10.1016/j.neuron.2010.08.012.

    PMID: 20826313BACKGROUND
  • Park DC, Lautenschlager G, Hedden T, Davidson NS, Smith AD, Smith PK. Models of visuospatial and verbal memory across the adult life span. Psychol Aging. 2002 Jun;17(2):299-320.

    PMID: 12061414BACKGROUND
  • Pergher V, Au J, Alizadeh Shalchy M, Santarnecchi E, Seitz A, Jaeggi SM, Battelli L. The benefits of simultaneous tDCS and working memory training on transfer outcomes: A systematic review and meta-analysis. Brain Stimul. 2022 Nov-Dec;15(6):1541-1551. doi: 10.1016/j.brs.2022.11.008. Epub 2022 Nov 29.

    PMID: 36460294BACKGROUND
  • Reisberg B, Shulman MB. Commentary on "a roadmap for the prevention of dementia II: Leon Thal Symposium 2008." Subjective cognitive impairment as an antecedent of Alzheimer's dementia: policy import. Alzheimers Dement. 2009 Mar;5(2):154-6. doi: 10.1016/j.jalz.2009.01.011. No abstract available.

    PMID: 19328449BACKGROUND
  • Ripp I, Emch M, Wu Q, Lizarraga A, Udale R, von Bastian CC, Koch K, Yakushev I. Adaptive working memory training does not produce transfer effects in cognition and neuroimaging. Transl Psychiatry. 2022 Dec 13;12(1):512. doi: 10.1038/s41398-022-02272-7.

    PMID: 36513642BACKGROUND
  • Teixeira-Santos AC, Moreira CS, Pereira DR, Pinal D, Fregni F, Leite J, Carvalho S, Sampaio A. Working Memory Training Coupled With Transcranial Direct Current Stimulation in Older Adults: A Randomized Controlled Experiment. Front Aging Neurosci. 2022 Apr 12;14:827188. doi: 10.3389/fnagi.2022.827188. eCollection 2022.

    PMID: 35493937BACKGROUND

MeSH Terms

Conditions

Cognitive Dysfunction

Condition Hierarchy (Ancestors)

Cognition DisordersNeurocognitive DisordersMental Disorders

Study Officials

  • Stefano Cappa, MD

    Dementia Research Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Double
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Prospective, double-blind, randomized controlled study
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 16, 2023

First Posted

July 3, 2023

Study Start

July 30, 2023

Primary Completion (Estimated)

December 30, 2026

Study Completion (Estimated)

December 30, 2026

Last Updated

July 3, 2023

Record last verified: 2023-06

Data Sharing

IPD Sharing
Will not share