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A randomized controlled trial to evaluate the efficacy and safety of Clears-belong Plus in participants with long COVID (COVID-19)

A randomized controlled trial to evaluate the efficacy and safety of Clears-belong Plus in participants with long COVID (COVID-19)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20230131004
Enrollment
66
Registered
2023-01-31
Start date
2023-05-03
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Long COVID long COVID herbal supplement lime bamboo grass cannabis galangal pepper

Interventions

Clears-belong Plus is a herbal dietary supplement containing powders of lime, bamboo grass, cannabis, galangal, and pepper (registration no. 13-2-10660-5-0002). One capsule contains 500 mg. Participan
Experimental Dietary Supplement,Placebo Comparator No treatment
Clears-belong Plus,Placebo

Sponsors

Rangsit University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Thai males and females aged 20 years old or above. 2. Previously had COVID-19 infection as confirmed by ATK or RT-PCR at least 4 weeks before screening. 3. Long COVID diagnosis as confirmed by a physician. 4. Willing to attend all the study procedures.

Exclusion criteria

Exclusion criteria: 1. Have or suspected to have penumonitis 2. Have at least one of the following conditions: chronic obstructive pulmonary disease, chronic lung diseases, chronic renal disease, cardiovascular diseases, cerebrovascular diseases, congenital heart diseases, psychotic disorders, hepatitis, cirrhosis, and immunodeficiency disorders 3. Current use of warfarin or benzodiazepines 4. Positive result from tetrahydrocannabinol (THC) urine test at screening 5. Positive result from urine pregnancy test at screening 6. Plan to become pregnant or breastfeeding 7. History of hypersensitivity to any active ingredients of Clears-belong Plus 8. Participating in other studies 9. Any other health conditions that could interfere with participation in this study based on investigator's judgement

Design outcomes

Primary

MeasureTime frame
Symptom severity at baseline and end of treatment questionnaire,C-reactive protein level at baseline and end of treatment blood sampling

Secondary

MeasureTime frame
Full recovery and long COVID symptom improvement at baseline and end of treatment questionnaire,Quality of life at baseline and end of treatment questionnaire,Adverse events after randomization through end of study collection of adverse events by investigators

Countries

Thailand

Contacts

Public ContactThitiya Lukkunaprasit

Rangsit University

thitiya.l@rsu.ac.th029972222

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026