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Effectiveness of ammonium chloride in reducing viral load

Effectiveness of a sustained-release ammonium chloride formulation in reducing the viral load of patients with COVID-19 or influenza

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN48259966
Enrollment
200
Registered
2025-11-27
Start date
2024-09-01
Completion date
Unknown
Last updated
2025-12-08

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

Conditions

Mild or moderate COVID-19 or seasonal influenza infection Infections and Infestations

Interventions

Eligible participants were assigned in a 1:1 ratio to receive either the ACF formulation (ammonium chloride 500 mg + vitamin D 2000 IU) or the VDF formulation (vitamin D 2000 IU only). Assignment was
the blinding code was held solely by the manufacturer and disclosed only after completion of enrolment and data collection. Both formulations were enteric-coated, sustained-release tablets administere

Sponsors

National and Kapodistrian University of Athens
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 90 Years

Inclusion criteria

Inclusion criteria: Laboratory testing verified SARS-CoV-2 or Influenza A or Influenza B infection

Exclusion criteria

Exclusion criteria: 1. Age <18 years 2. Pregnancy or lactation 3. Denial of informed consent 4. Known allergy to study components 5. Organ transplantation 6. Frailty score =5

Design outcomes

Primary

MeasureTime frame
Reduction of viral load, measured using RT-PCR cycle threshold (Ct) values obtained at baseline (Day 1), Day 3–5, and Day 10–12

Secondary

MeasureTime frame
1. Duration and severity of symptoms for 30 days documented through structured symptom diary and investigator follow-up at Day 30 2. Incidence of hospitalization (for outpatients) confirmed through clinical charts and hospital admission logs within 30 days of enrolment 3. Need for oxygen supplementation confirmed through clinical charts and hospital admission logs within 30 days of enrolment 4. ICU admission confirmed through clinical charts and hospital admission logs within 30 days of enrolment 5. Intubation confirmed through clinical charts and hospital admission logs within 30 days of enrolment 6. Death verified via hospital documentation, within 30 days of enrolment

Countries

Greece

Contacts

Public ContactNikolaos Drakoulis
drakoulis@uoa.gr+306944373647

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026