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Efficacy, Safety, Tolerability of AXA1125 in Fatigue After COVID-19 Infection

A Randomized, Double-Blind, Placebo-Controlled Pilot Study to Evaluate the Efficacy, Safety, and Tolerability of AXA1125 in Subjects With Fatigue-Predominant Post-Acute Sequelae of SARS-CoV-2 (PASC) Infection

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05152849
Enrollment
41
Registered
2021-12-10
Start date
2021-12-15
Completion date
2022-06-29
Last updated
2022-10-20

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

Conditions

Post-Acute Sequelae of SARS-CoV-2 (PASC) Infection

Keywords

Long COVID, Long-haul COVID, Muscle weakness, COVID, PASC, Fatigue, Amino acids, Bioenergetics, Mitochondrial dysfunction, Phosphocreatine recovery, Exertional fatigue, Phospho magnetic resonance spectroscopy, Skeletal muscle

Brief summary

This study will compare the effects of AXA1125, an orally active mixture of amino acids, compared to placebo, on improving muscle function (metabolism) following moderate exercise in subjects with fatigue-Predominant Post-Acute Sequelae of SARS-CoV-2 as well as the safety and tolerability of AXA1125. Subjects will take one dose of AXA1125 or a placebo twice daily for 28 days.

Interventions

AXA1125 administered BID with or without food

DRUGPlacebo

Matching Placebo administered BID with or without food

Sponsors

Axcella Health, Inc
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 64 Years
Healthy volunteers
No

Inclusion criteria

* Willing to participate in the study and provide written informed consent * Male and female adults aged \> 18 years and less than 65 years * Must have had clinically suspected COVID-19 and a positive antibody test or a documented SARS-CoV-2 infection (a positive reverse transcription polymerase chain reaction test) at least 12 weeks prior to Screening * Must have fatigue-predominant PASC * Other than PASC, a subject must be in good health without other significant medical or not well controlled medical or psychiatric conditions

Exclusion criteria

* Other than PASC, have an explanation for fatigue * Other than PASC, a history or presence of an uncontrolled, clinically significant disease * Medical history that includes of Non-invasive or invasive ventilatory support for COVID 19, Intensive care unit or other high dependency unit admission for COVID-19, Hospitalization for \>1 week for COVID-19 without intubation

Design outcomes

Primary

MeasureTime frame
Change from baseline at Week 4 in the phosphocreatine (PCr) recovery rate following moderate exercise, as assessed by 31P-magnetic resonance spectroscopy (MRS)Baseline to 28 days

Secondary

MeasureTime frame
Proportion of subjects with improvement in PCr recovery rateBaseline to 28 days
Change from baseline in serum lactate level after a 6-minute walk testBaseline to 28 days
Proportion of subjects with serum lactate level ≤3 mmol/L after a 6MWTBaseline to 28 days
Proportion of subjects with a decrease in venous serum lactate level from baseline after a 6MWTBaseline to 28 days
Change from baseline in PCr recovery rate as assessed by phosphorus magnetic resonance spectroscopy (31P-MRS)Baseline to 28 days
Change from baseline in subjects' fatigue score as assessed by Chalder Fatigue Questionnaire (CFQ)-11Baseline to14 days
Change from baseline in subjects' fatigue score as assessed by Chalder Fatigue Questionnaire (CFQ)-11 before and after a 6MWTBaseline to 28 days
Proportion of subjects with an improvement in fatigue score as assessed by CFQ-11 before and after a 6MWTBaseline to 28 days
Change from baseline in distance traveled during a 6MWTBaseline to 28 days

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 12, 2026