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Increasing Mitochondrial Respiration as a Novel Mechanism for Cognitive Augmentation (MITOCOG)

26 août 2026 mis à jour par: Francisco Gonzalez-Lima, PhD
The purpose of this study is to investigate the effects of increasing brain energy on cognition. The hypothesis is that by using a special kind of light, in combination with a nutritional supplement, it may be possible to increase energy production in the brain, which may lead to improvements in cognition.

Aperçu de l'étude

Statut

Pas encore de recrutement

Les conditions

Intervention / Traitement

Description détaillée

The Gonzalez-Lima Laboratory at the University of Texas at Austin is recruiting participants for a research study. The study examines whether a combined treatment can improve cognitive function. The treatment includes transcranial photobiomodulation (tPBM), a form of light therapy applied to the forehead, along with a dietary supplement. The treatment targets an enzyme called cytochrome-c-oxidase, which plays a key role in how the mitochondria inside brain cells use oxygen to produce energy. As people age, this process often becomes less efficient, contributing to cognitive decline seen in normal aging and in neurodegenerative diseases. The hypothesis is that improving mitochondrial function and cytochrome-c-oxidase activity will boost neuronal energy production and reduce oxidative stress, ultimately enhancing cognitive performance. Previous studies from the Gonzalez-Lima Lab found that applying tPBM to the prefrontal cortex improves brain metabolic activity and enhances cognitive functions such as attention, memory, and executive function. The dietary supplement provides an alternative energy source derived from ketones, which mitochondria can use for oxygen metabolism. This may help bypass the impaired glucose metabolism often seen in aging brains, potentially leading to further cognitive improvements. This study will investigate the cognitive effects of this combined treatment in adults ages 18 to 85. During the first visit to the lab, participants will complete informed consent, health questionnaires, and cognitive assessments, and wear sensors on the head which monitor brain activity. They will also be trained to use a headset device which uses light-emitting diodes (LEDs) to deliver light to the forehead. They will be given daily supplements and instructed on how to maintain a daily log for at-home treatments. Then, for the next two months, participants will complete the daily protocol at home. Weekly check-ins will monitor progress throughout this period. After two months, participants will return to repeat the assessments from the first visit and return their study materials. Participants will receive $200 upon completing the study, and parking expenses will be reimbursed for each visit. Briefly, one aim will be to map the relationship between baseline prefrontal functional connectivity and dimensional performance in cognitive control and affective processing. Another aim will be to evaluate mechanistic efficacy of chronic tPBM in engaging prefrontal circuits and restoring task-based behavioral performance. A final aim is to model the longitudinal relationship between prefrontal circuit health and real-world sleep, circadian stability, and neuroendocrine regulation. By focusing on target-driven biobehavioral mechanisms, this study aims to identify novel therapeutic targets and establish scalable biomarker pipelines.

Type d'étude

Interventionnel

Inscription (Estimé)

180

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Lieux d'étude

    • Texas
      • Austin, Texas, États-Unis, 78712
        • The University of Texas at Austin

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Oui

La description

Inclusion Criteria:

  • Age: 18-85 years old
  • No uncorrected visual, auditory, or motor impairments that would interfere with performing cognitive tasks

Exclusion Criteria:

  • Transcranial photobiomodulation in the last six weeks
  • Diabetes
  • Pregnancy or plans to become pregnant
  • Breastfeeding or plans to breastfeed
  • Major depressive disorder
  • Psychotic disorders
  • Suicidal ideation within the past 6 months
  • Plans for serious medical procedures in the next 3 months
  • Serious hepatic or liver-related conditions
  • History of neurotrauma (e.g., brain lesions or traumatic brain injury)
  • Presently on a ketogenic diet

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Autre
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation factorielle
  • Masquage: Quadruple

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur actif: Arm 1: active tPBM, active MCT dietary supplementation
Participants in this arm will receive active transcranial photobiomodulation to the forehead, targeting prefrontal cortex, and active dietary supplementation with refined coconut oil to provide ketones.
Infrared light delivered to the forehead, administered with a headset using light-emitting diodes (LEDs)
Commercially-available food-grade refined coconut oil for ketogenic dietary supplementation
Comparateur factice: Arm 2: sham tPBM, sham dietary supplementation
Participants in this arm will undergo the same procedures as the active group, but with sham photobiomodulation (5% of experimental light emitted by the device) and sham dietary supplementation with sunflower oil (comparable caloric value without ketone production).
Identical procedure as active group, but with 5% of light emitted by the device.
Identical appearance and administration as active dietary supplementation, but with commercially-available food-grade sunflower oil (comparable caloric value without ketone production).

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Cognitive assessment: Montreal Cognitive Assessment (MoCA)
Délai: The MoCA will be administered: 1. Pre-treatment (during Visit 1); 2. Post-treatment (Visit 2, two months later)
The Montreal Cognitive Assessment is a standard questionnaire which was developed to test for cognitive impairment. The MoCA assesses a variety of cognitive functions including executive function, memory, attention, and verbal fluency. Minimum=0; Maximum=30; low score=more impairment.
The MoCA will be administered: 1. Pre-treatment (during Visit 1); 2. Post-treatment (Visit 2, two months later)
Cognitive assessment: Trail-Making Test
Délai: The TMT will be administered: 1. Pre-treatment (during Visit 1); 2. Post-treatment (Visit 2, two months later)
The trail-making test (TMT) is a paper-and-pencil "connect-the-dots" task which is used to test visual attention and cognitive flexibility. Completion time (seconds) and number of errors are recorded. Faster time and lower errors=better performance. Maximum time alloted=300 seconds.
The TMT will be administered: 1. Pre-treatment (during Visit 1); 2. Post-treatment (Visit 2, two months later)
Brain metabolism assessment: Functional Near-Infrared Spectroscopy (fNIRS)
Délai: The fNIRS procedure will be administered: 1. Pre-treatment (during Visit 1); 2. Post-treatment (Visit 2, two months later)
Participants wear a device on the head which assesses brain metabolism non-invasively using functional near-infrared spectroscopy. The device records changes in the concentrations of oxygenated hemoglobin in the prefrontal cortex of the brain.
The fNIRS procedure will be administered: 1. Pre-treatment (during Visit 1); 2. Post-treatment (Visit 2, two months later)

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Cognitive assessment: 2-Back Task
Délai: The 2-back task will be administered: 1. Pre-treatment (during Visit 1); 2. Post-treatment (Visit 2, two months later)
The 2-back task is a standard computer-based test that assesses attention and short-term memory, in which participants remember a series of letters presented onscreen. Accuracy (number of errors) and speed (reaction time in seconds) are recorded. Faster time and lower errors=better performance. Duration: 5 minutes.
The 2-back task will be administered: 1. Pre-treatment (during Visit 1); 2. Post-treatment (Visit 2, two months later)
Cognitive assessment: Delayed Match-to-Sample Task (DMS)
Délai: The DMS will be administered: 1. Pre-treatment (during Visit 1); 2. Post-treatment (Visit 2, two months later)
The DMS is a standard computer-based test that assesses visuospatial memory and attention, in which participants remember a grid pattern through a delay and then identify the correct match. Number of correct responses and reaction time in seconds are measured. Faster time and lower errors=better performance. Duration=5 minutes.
The DMS will be administered: 1. Pre-treatment (during Visit 1); 2. Post-treatment (Visit 2, two months later)
Weekly check-in
Délai: Once per week during treatment
Open response, verification of compliance of treatment
Once per week during treatment
Follow-up
Délai: One month after Visit 2
Open response of any long-term effects of treatment
One month after Visit 2

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Estimé)

1 octobre 2026

Achèvement primaire (Estimé)

1 décembre 2029

Achèvement de l'étude (Estimé)

1 mai 2030

Dates d'inscription aux études

Première soumission

19 août 2026

Première soumission répondant aux critères de contrôle qualité

26 août 2026

Première publication (Réel)

28 août 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

28 août 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

26 août 2026

Dernière vérification

1 août 2026

Plus d'information

Termes liés à cette étude

Autres numéros d'identification d'étude

  • STUDY00009139

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

OUI

Description du régime IPD

What data will be shared? Individual participant data that underlie the results reported in this study, after deidentification (text, tables, figures, and appendices). A data dictionary, including a description of the variables and types of data, collected for each individual, will be provided. This data will include anonymized individual participant demographic information and all outcome variables (cognitive task data, spectroscopy data).

Délai de partage IPD

Beginning 9 months and ending 36 months following article publication.

Critères d'accès au partage IPD

The raw data will be made available by the researchers upon reasonable request by any qualified doctoral researcher (PhD, MD). They will be granted access by contacting the corresponding author/principal investigator (F. Gonzalez-Lima, utcognitivestudy@gmail.com). It will be made available to qualified researchers whose proposed use of the data has been approved by an independent review committee (Institutional Review Board) identified for the purpose of individual participant data meta-analysis. Proposals may be submitted up to 36 months following article publication. After 36 months, the data will be available in our University's shared network drive, but without investigator support other than deposited metadata.

Type d'informations de prise en charge du partage d'IPD

  • PROTOCOLE D'ÉTUDE

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .