CClinicalTrials.gg
CompletedNCT04828668"BAC-PAC"Updated Aug 7, 2025

Study to Evaluate Benefits & Safety of Endourage Formula C™ Oral Drops in People With Post-Acute COVID-19 Syndrome.

An interventional study of Targeted Wellness Formula C™ Sublingual Drops - 1200mg - 30 mL (Formula C) in Covid 19, sponsored by Endourage, LLC. Completed at 1 site in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-08-07.

Sponsored by Endourage, LLC · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
32
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This study will explore the contribution of CBD oral drops in persons experiencing symptoms of Post Acute COVID Syndrome or "PACS".

Read the detailed description

At present, conventional medical and rehabilitation therapies have not consistently been effective for people with PACS, and in fact some symptoms have been observed to worsen over time. This inconsistency in clinical response has created a need for alternative treatment options to be explored. CBD presents a novel approach that warrants further investigation.

After review and approval by an Institutional Review Board (IRB), potential study participants will be recruited from on-line support groups who have identified themselves as persons experiencing post-acute COVID-19 syndrome also known as (long-haulers syndrome).

The study will be registered on the www.clincaltrials.gov website and will accept referrals from targeted clinics who refer their patients to the investigational site listed and individuals can also self-refer to the study center team.

Subjects will be evaluated weekly using telemedicine procedures. At completion of study, there will be a 7-day and 14-day follow up telemedicine visit to assess for continued benefit and/or re-emergence of symptoms/relapse.

02

Conditions studied

  • Covid 19

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03

In context

COVID-19

7,640 studies on the registry are indexed under COVID-19; 488 are open to participants now.

This study's enrollment of 32 is below the median of 100 across 4,099 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Endourage, LLC is the lead sponsor of 3 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Age 18 years of age or older who can provide informed consent.
  2. Persons who have been diagnosed with COVID-19 and now in post-acute recovery phase.
  3. Persons who are in care with access to primary care for post COVID infection or PACS.
  4. Ability to read and write in the English language and follow study-related procedures.
  5. Ability to have mail/ study drug delivered to an address and/or P.O. Box in the recipient's name.
  6. Ability to participate in telemedicine visits/communication.
  7. If a woman of childbearing age, willing to use a dual method of contraception (barrier and/or hormonal).

Exclusion criteria

Exclusion Criteria:

  1. Active illicit or non-prescribed drug use.
  2. Concomitant use of benzodiazepines.
  3. Concomitant use of an immune suppressant agent, e.g., prednisone.
  4. Documented history and active treatment for seizure disorder.
  5. Transaminase elevation.
  6. Active autoimmune disorder.
  7. Hepatitis C infection (currently on therapy and/or any transaminitis elevation).
  8. Hepatitis B infection (currently on therapy and/or any transaminitis elevation).
  9. Human Immune Deficiency Virus (HIV-1 or HIV-2) infection that is newly diagnosed or untreated.
  10. Any form of mental impairment that will/could hinder safe participation in the study.
  11. Pregnancy or breast-feeding.
  12. Any condition that in the opinion of the investigator would be harmful or detrimental to the participant.
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Single (Participant)
Enrollment
32 participants (actual)

Study arms

  • Experimental
    Formula C

    30 participants will be randomized to masked active study product (Formula C) for 28-days; they will continue to the open label extension phase (with commercially available product for an additional 28-days when they will receive commercially available product.

    Dietary Supplement: Targeted Wellness Formula C™ Sublingual Drops - 1200mg - 30 mL (Formula C)

  • Placebo comparator
    Placebo

    30 participants will be randomized to placebo for 28-days; they will roll-over to the open label extension phase of study product (Formula C) for an additional 28-days when they will receive commercially available product.

    Dietary Supplement: Targeted Wellness Formula C™ Sublingual Drops - 1200mg - 30 mL (Formula C)

Interventions

  • Dietary supplementTargeted Wellness Formula C™ Sublingual Drops - 1200mg - 30 mL (Formula C)

    Hemp seed oil

    Also known as: Placebo

06

What researchers measure

Primary outcomes

  1. Reduction in patient reported outcomes measures on the Patient Reported Outcomes Measurement Information System (PROMIS ®) assessment tools.

    PROMIS® is a set of patient-centered instruments used to measure various patient reported outcomes. Measures are scored on the T-score metric of which 50 is the mean of a relevant baseline population with 10 being the standard deviation of that population. A score of 40 is one stndard deviation less than and a score of 60 is one standard deviation greater than the mean of the baseline or reference population. High scores suggest more of what is being measured (e.g., more fatigue, more shortness of breath) and a lower score suggest improvement in symptoms or complaints assessed depending on symptom or complaint being measured.

    Time frame: 56-days (designated time points)

  2. PATIENT GLOBAL IMPRESSION OF CHANGE (PGIC)

    This scale evaluates various aspects of patients' health and assesses if there has been an improvement or decline in clinical status. Scale associated with subjective responses range 1-7 (from no change or a one through a great deal better and considerable improvement that has made all the difference or a seven), higher ratings indicate improved sympomtoms (responders) versus those reporting lower scores suggesting no change or a worsening of their condition (non-responders).

    Time frame: 56-days (designated time points)

Secondary outcomes

  1. Study product related adverse events and side effects.

    Daily diary entries and clinical interview at scheduled visit; the number of participants with treatment related events as measured by grading scale of the Common Terminology Criteria for Adverse Events (CTCAE), grade 1-IV (one through four) and using descriptor terms, mild, moderate, severe. Additionally, any adverse event meeting serious adverse event criteria will be collected and reported. Frequency summary tables of all adverse events/serious adverse events will be tabulated and reported.

    Time frame: 56-days (designated time points)

07

Study locations

1 site
  • Thomas P Young
    Novato, California 94945, United States
08

References and documents

Publications

  • Lu D, Vemuri VK, Duclos RI Jr, Makriyannis A. The cannabinergic system as a target for anti-inflammatory therapies. Curr Top Med Chem. 2006;6(13):1401-26. doi: 10.2174/15680266106061401. PubMed 16918457 ↗
  • Moreira FA, Lutz B. The endocannabinoid system: emotion, learning and addiction. Addict Biol. 2008 Jun;13(2):196-212. doi: 10.1111/j.1369-1600.2008.00104.x. Epub 2008 Apr 16. PubMed 18422832 ↗
  • Young TP, Erickson JS, Hattan SL, Guzy S, Hershkowitz F, Steward MD. A Single-Blind, Randomized, Placebo Controlled Study to Evaluate the Benefits and Safety of Endourage Targeted Wellness Formula C Sublingual +Drops in People with Post-Acute Coronavirus Disease 2019 Syndrome. Cannabis Cannabinoid Res. 2024 Feb;9(1):282-292. doi: 10.1089/can.2022.0135. Epub 2022 Oct 14. PubMed 36252151 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 7, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04828668
Lead sponsor
Endourage, LLC
Responsible party
Sponsor
First posted
Apr 2, 2021
Start date
Apr 2, 2021
Primary completion
Jan 31, 2022
Completion
Feb 14, 2022
Last update
Aug 7, 2025

Study contacts

Thomas P Young, PhD, NP
principal investigator · JOEL S ERICKSON, MD & THOMAS P YOUNG, PHD NP

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 completed, as verified in Aug 2025. You cannot join it, but the record below documents what was studied.

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