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Status unknownNCT04363216Updated May 5, 2020

Pharmacologic Ascorbic Acid as an Activator of Lymphocyte Signaling for COVID-19 Treatment

A Phase 2 interventional study of Ascorbic Acid in COVID-19, sponsored by Thomas Jefferson University. Status unknown. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-05-05.

Sponsored by Thomas Jefferson University · Phase 2, Interventional, and Treatment

The sponsor has not verified this record recently (last verified May 2020), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Phase 2
Study type
Interventional
Enrollment
66
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

There are currently no approved therapies for patients with coronavirus disease (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Infusion of ascorbic acid (vitamin C) has been shown to increase activity of lymphocytes, which are a crucial component of the body's defense against viral disease progression and adaptive immunity. Ascorbic acid infusion has been shown to be a safe treatment for patients suffering from sepsis and certain types of cancer. This study is designed to evaluate the safety and efficacy of ascorbic acid in the form of sequential I.V. infusions (Ascor®) for patients with suspected COVID-19 who are unlikely to require mechanical ventilation within 24 hours of study intervention.

Read the detailed description

Ascorbic acid [AA] (vitamin C) is an essential nutrient that, in addition to aiding tissue repair, also functions as an enzyme co-factor, an antioxidant, and a key component in lymphocyte development and function. Lymphocytes are responsible for adaptive immunity, the immune response following vaccination, in addition to playing a vital role in protection against viral disease progression. Both sepsis and aberrant lymphocyte activation have been associated with severe AA deficiency. We hypothesize that the administration of increasing concentrations of pharmacologic AA promotes lymphocyte activation and signaling in newly admitted, non-ventilator dependent COVID-19 patients via hydrogen peroxide generation and/or DNA de-methylation, and that this will lead to improved clinical outcomes.

This is a single-center, prospective, randomized, open-label, phase II clinical trial designed to assess the efficacy, tolerability, and safety of pharmacologic AA administration in hospitalized patients newly-diagnosed with COVID-19 who will likely not require mechanical ventilation within 24 hours of study intervention. All subjects enrolled will be pending inpatient admission or already admitted as they will require supplemental oxygen. Within 12 hours of admission to the E.D. or medical/surgical floor (rapid screens to determine eligibility must be completed within this time), patients will receive escalating pharmacologic AA over 2 hours once daily for 3 escalating doses, then continued on the highest dose for a total of 6 infusions.

Subjects will be randomized 2:1, with 66 subjects receiving AA treatments and 22 subjects receiving routine clinical care. The open-label design allows investigators to evaluate the safety and clinical progress in real-time. Any subject randomized to AA treatment who is upgraded to ICU-level care, requires high-flow O2 supplementation, or is intubated, will no longer receive AA infusions in order to maximize patient safety during this study. Given the robust safety data on the treatment, a phase II design was chosen with an interim safety analysis after 21 patients. Randomization will be stratified according to high vs. low risk of complications. Patients will be considered to be high risk if they have any of the following characteristics: age>60, hypertension, structural lung disease, cardiovascular disease, diabetes, immunocompromising conditions or meds (such as immunosuppressing meds in transplant patients).

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Conditions studied

  • COVID-19

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Keywords

  • ascorbic acid
  • vitamin c
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In context

COVID-19

7,641 studies on the registry are indexed under COVID-19; 487 are open to participants now.

This study's planned enrollment of 66 is below the median of 100 across 4,100 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Thomas Jefferson University is the lead sponsor of 384 studies on the registry; 71 are open to participants now.

Of its 44 completed or terminated interventional studies of FDA-regulated products, 20 (45%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Male or non-pregnant female > 18 years of age at the time of consent
  2. ConfirmedSARS-CoV-2 infection
  3. Disease severity necessitating hospitalization
  4. Currently taking supplemental oxygen
  5. No anticipated need (within 24 hours) for mechanical ventilation, defined as:

    1. Positive clinical response to oxygen supplementation with improvement in hypoxia or
    2. Hypoxia improvement with bronchospasm therapy if bronchospasm present

Exclusion criteria

Exclusion Criteria

  1. eGFR \< 50
  2. Known Glucose-6-phosphate dehydrogenase (G6PD) deficiency
  3. Anticipated need for mechanical ventilation within 24 hours
  4. Pregnant or breastfeeding
  5. Requires home oxygen for any reason
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Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
66 participants (estimated)

Study arms

  • Experimental
    Treatment

    Ascorbic acid solution (Ascor®, McGuff Pharmaceuticals, Ltd.) will be added to each liter of sterile wate,r plus 1 g/L magnesium chloride to reduce burning sensation, and given parenterally over a 2-hour period. On the day of enrollment (Day 0), 0.3 g/kg will be given; Day 1 - 0.6 g/kg; Day 2 - 0.9 g/kg; Day 3 - 0.9 g/kg; Day 4 - 0.9 g/kg; Day 5 - 0.9 g/kg. After the first dose, each subsequent dose will be given 24 +/- 4 hours following the previous dose.

    Drug: Ascorbic Acid

  • No intervention
    Routine care

    These subject will follow routine care and their clinical courses will be recorded only.

Interventions

  • DrugAscorbic Acid

    Ascor® ascorbic acid 2-hour infusion daily (for 6 days), escalating dose (0.3g/kg, 0.6g/kg, 0.9g/kg).

    Also known as: Vitamin C

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What researchers measure

Primary outcomes

  1. Clinical Improvement

    • Clinical improvement at 72 hours of treatment, defined as a 50% reduction in the highest flow rate of oxygen during the 72 hour period, a 50% reduction in the most frequent use of bronchodilators within a 12-hour window within the 72-hour period, or hospital discharge (whichever comes first).

    Time frame: 72 hours

Secondary outcomes

  1. Patient status upgraded to ICU level [Clinical decline]

    Subject is upgraded to ICU-level care

    Time frame: 36 hours

  2. Oxygen supplementation

    Overall rate of oxygen supplementation in L/min

    Time frame: up to 1 year

  3. Days with fever

    Number of days during hospitalization where a fever (\>100.4°F) is reached at least once

    Time frame: up to 1 year

  4. Days to discharge

    Number of days from initial treatment to hospital discharge

    Time frame: up to 1 year

  5. SAEs

    Serious adverse events specific to treatment

    Time frame: up to 1 year

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Study locations

No study locations are listed for this record.

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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 5, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04363216
Lead sponsor
Thomas Jefferson University
Responsible party
Sponsor
First posted
Apr 27, 2020
Start date
May 2020 (estimated)
Primary completion
May 2021 (estimated)
Completion
May 2021 (estimated)
Last update
May 5, 2020

Study contacts

Michael W Foster, M.D.
Contact
mxf314@jefferson.edu
6107160962
Melissa McCarey
Contact
melissa.mccarey@jefferson.edu
267 503-7417
Dagan Coppock, M.D.
principal investigator · Thomas Jefferson University
Daniel Monti, M.D.
study director · Thomas Jefferson University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in May 2020. You cannot join it, but the record below documents what was studied.

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