Analyzing MicroRNAs and Vitamin B12 in Long COVID Patients with Neurological Symptoms

Evaluation of MicroRNAs and Vitamin B12 Expression in Subjects with Neurologic Symptoms of Depression, Anxiety and Fatigue in Long COVID-19

Observational Instituto Nacional de Rehabilitacion · NCT06864156

This study is testing if changes in certain microRNAs and vitamin B12 levels in the blood can help understand and treat neurological symptoms like depression and fatigue in people who have long COVID.

Quick facts

Study typeObservational
Enrollment20 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorInstituto Nacional de Rehabilitacion Government
Locations1 site (Mexico City, Mexico City)
Trial IDNCT06864156 on ClinicalTrials.gov

What this trial studies

This study evaluates the expression of specific microRNAs and vitamin B12 levels in individuals experiencing neurological symptoms such as depression, anxiety, and fatigue following COVID-19 infection. By analyzing blood samples from these patients, the research aims to identify changes in biological processes that occur post-infection. The ultimate goal is to enhance diagnostic methods and develop targeted therapies for long COVID symptoms. The study focuses on patients who have had confirmed COVID-19 and exhibit these neurological symptoms three months after their acute infection.

Who should consider this trial

Good fit: Ideal candidates include individuals with a confirmed COVID-19 diagnosis who are experiencing neurological symptoms of depression, anxiety, and fatigue at least three months post-infection.

Not a fit: Patients who have had recent acute COVID-19 symptoms or pre-existing neurological conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this research could lead to improved diagnostic tools and therapies for patients suffering from long COVID-related neurological symptoms.

How similar studies have performed: While the specific approach of analyzing microRNAs and vitamin B12 in long COVID is relatively novel, similar studies have explored biomarkers in post-viral syndromes with varying degrees of success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Subjects with confirmed diagnosis of COVID-19 by SARS-CoV-2 infection by PCR or antigen testing.
* With presence of neurological symptoms of depression, anxiety and fatigue associated with COVID-19 after three months from the first day of acute infection symptoms.

Exclusion Criteria:

* Subjects who have presented symptoms of acute infection in the last twelve weeks.
* Subjects who present diagnostic premorbid neurological alterations.
* Subjects who do not have at least 2 doses of COVID-19 vaccine, with last application date equal or older than 3 months.

Where this trial is running

Mexico City, Mexico City

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Long COVIDLong COVID SyndromeanxietydepressionfatiguemicroRNAsvitamin b12long covid
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.