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Efficacy and safety of hypromellose-based nasal solution spray containing human IgG1 anti-SARS-CoV-2 antibody in high-risk close contact COVID-19: A doubled-blind, randomized, placebo controlled trial

Efficacy and safety of hypromellose-based nasal solution spray containing human IgG1 anti-SARS-CoV-2 antibody in high-risk close contact COVID-19: A doubled-blind, randomized, placebo controlled trial

Status
Unknown
Phases
Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20220712005
Enrollment
1000
Registered
2022-07-12
Start date
2022-06-17
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

Efficacy Safety post exposure prophylaxis VaillTM CoViTRAP COVID-19 Efficacy Safety post exposure prophylaxis VaillTM CoViTRAP COVID-19 infection

Interventions

VaillTM CoViTRAP 2 puffs intranasal q 8 hours continuously in seven days. ,0.9% Normal saline 2 puffs intranasal q 8 hours continuously in seven days.
VaillTM CoViTRAP,Placebo

Sponsors

None listed

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Age > 18 years 2. High risk or close contact with COVID-19 infection patient within 72 hours 3. Result of ATK Lysun COVID-19 Antigen Rapid Test Device (Colloidal Gold) is negative on enrollment day 4. No history of COVID-19 infection within 3 months 5. Sign inform consent form

Exclusion criteria

Exclusion criteria: 1. Pregnancy 2. Unacceptable to sign inform consent form 3. History of sever allergic reaction to component of VaillTM CoViTRAP

Design outcomes

Primary

MeasureTime frame
Efficacy 7 days ATK negative

Secondary

MeasureTime frame
Safety 7 days side effect reports

Countries

Thailand

Contacts

Public ContactWannada Laisuan

Ramathibodi Hospital, Mahidol university

wannada.lai@mahidol.ac.th022011779

Outcome results

None listed

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