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Effect of Metabolic Modulation on a Post-acute COVID-19 Vaccination Syndrome (PACVS) Cohort

Effectiveness of Metabolic Modulation in Treating Post-vaccination Syndrome: A Prospective Study

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06967428
Acronym
ViTAL-SCAN19
Enrollment
100
Registered
2025-05-13
Start date
2025-09-01
Completion date
2026-01-31
Last updated
2025-05-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Post Acute Covid-19 Vaccination Syndrome, Vaccine Adverse Reaction

Keywords

Post Acute Covid-19 Vaccination Syndrome, Metabolic Modulation, Amino Acids

Brief summary

The goal of this clinical trial is to evaluate whether metabolic modulation with a combined nutraceutical product can improve symptoms and metabolic health in adults diagnosed with post-acute Covid-19 vaccination syndrome (PACVS), a condition characterized by persistent fatigue and exercise intolerance attributed to Covid-19 vaccination and confirmed by laboratory testing. The main questions it aims to answer are: Does the combined nutraceutical intervention improve quality of life (measured by the PAC-19QoL questionnaire) in PACVS patients? Does the intervention improve metabolic, inflammatory, and functional biomarkers (e.g., HbA1c, blood lactate, CRP, spike protein levels, heart rate variability, 6-minute walk distance)? Researchers will compare the intervention group (receiving the ViTAL SCAN nutraceutical) to a placebo group (receiving rice protein powder with vitamin C) to determine if the intervention leads to greater improvements in symptoms and biomarker profiles. Participants will: Take the assigned supplement daily for 3 months (ViTAL SCAN or placebo) Attend clinic visits for blood and urine sampling, physical performance tests (6-minute walk test), and heart rate monitoring Complete quality of life and health behavior questionnaires Undergo measurements of metabolic and inflammatory markers (HbA1c, lactate, CRP, spike protein) Record supplement intake This study is currently pending IRB approval and aims to enroll 100 adults with PACVS for a randomized, placebo-controlled trial.

Interventions

COMBINATION_PRODUCTCombined metabolic modulator

This daily intervention over 3 months combines 4 g L-serine, 14 g L-glutamine, 3 g L-arginine, 2.5 g N-acetylcysteine, 5.75 g L-citrulline, 1 g vitamin C, and 5 g creatine to support energy metabolism.

DIETARY_SUPPLEMENTRice Protein Powder with Vitamin C

Rice Protein Powder (39g) with Vitamin C (1g) daily

Sponsors

Open Source Medicine Foundation OU
CollaboratorUNKNOWN
Independent Medical Alliance
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
16 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Persistent fatigue lasting more than 6 months * Received at least one dose of a Covid-19 vaccine, after which they experienced fatigue symptoms (symptom onset within two weeks of vaccination) * Laboratory result showing persistent spike protein in blood OR presence of spike protein antibodies with SARS-CoV-2 nucleocapsid antibodies negative.

Exclusion criteria

* Pregnant * History of Schizophrenia * Currently using antidepressant medication

Design outcomes

Primary

MeasureTime frameDescription
PAC-19QoL QuestionnaireFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 monthsCombined score of an established survey instrument for Quality of Life in the context of Post-Acute Covid-19 Syndrome (PACS).
Six-minute walk testFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 monthsA treadmill-administered version of the six minute walk test (6MWT) where patients walk for as long a distance as they can, without jogging or running, in 6 minutes.

Secondary

MeasureTime frameDescription
Post-exertion blood lactateFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 monthsBlood lactate taken after the six-minute walk test.
C-Reactive ProteinFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 monthsC-reactive protein (CRP) , a marker of inflammation, has been found to be significantly different between long covid groups vs healthy individuals, as well as between long covid and recovered individuals. CRP is quantitatively measured at a laboratory attached to the study clinic using the Roche Cobas b 101 Blood Analyser using Roche cobas b 101 CRP Test Discs, supplied in packs of 10. Each test required a 12 μL sample of capillary whole blood, obtained via finger prick. Upon completion of the assay, CRP concentrations are recorded in mg/L with that patient's identification number. The analytical range is 3.0-400 mg/L; if a test returns an error, the value will be reported as missing.
Spike protein levelsFrom an initial test at enrollment to another at the end of treatment at 3 monthsSpike protein tests will be performed using the MSD S-PLEX SARS-CoV-2 Spike Kit using a SECTOR Imager 2400 plate reader.
Resting Heart Rate VariabilityFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 monthsHeart Rate Variability is taken at rest using a Garmin vívosmart® 5.
Heart rate variability during 6MWTFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 monthsHRV is taken using a Garmin vívosmart® 5 at the halfway point of the 6 minute walk test.
Resting Heart RateFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 monthsResting Heart Rate is taken using a Garmin vívosmart® 5.
Hemoglobin A1cFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 monthsHemoglobin A1c (HbA1c) reflects longer term blood sugar levels. Given that metabolism is altered in PACS patients, it may be valuable to assess their metabolic health. Elevated HbA1c was associated with an increased mortality during the acute phase of the Covid-19.
Post-exercise Borg category-ratio 10 scaleFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 monthsThis test is used to assess the level of perceived exertion after the 6MWT by asking participants to rate their exertion on a scale of 1 to 10. This is useful as a measure of exercise intolerance.
Total CholesterolFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 months
HDL-CholesterolFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 months
LDL-CholesterolFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 months
TriglyceridesFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 months
Heart Rate during 6MWTFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 monthsAverage heart rate is taken during the last three minutes of the 6MWT
Sedentary blood lactateFrom enrollment to an interim measurement at 1.5 months to the end of treatment at 3 monthsBlood lactate when the patient is at rest is taken using the Arkray Lactate Pro 2 Sports Blood Lactate Meter, which uses disposable test strips.

Countries

United States

Contacts

Primary ContactMatthew Halma
mhalma@imahealth.org+504 8948 1885

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026