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A trial of a herbal preparation (Link Samahan R) on the incidence of upper respiratory symptoms

The effect of daily dose of a herbal preparation (Link Samahan R) on the incidence and severity of upper respiratory symptoms in consenting adult healthy volunteers: an open label controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
SLCTR
Registry ID
SLCTR/2011/001
Enrollment
Unknown
Registered
2011-01-14
Start date
2011-01-21
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

Upper respiratory symptoms

Interventions

Giving one packet of Link Samahan R daily for 3 months

Sponsors

Link Natural Products (Pvt.) Ltd.
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: All consenting healthy adults between 20 and 50 years old employed at MAS Linea Aqua (Pvt.) Ltd.

Exclusion criteria

Exclusion criteria: Pregnant and breast feeding women

Design outcomes

Primary

MeasureTime frame
Incidence of defined upper respirartory symptoms [Incidence of defined upper respiratory symptoms will be recorded in control and test groups for 120 days]—

Secondary

MeasureTime frame
Severity of upper respiratory symptoms [Over 120 consecutive days]—

Countries

Sri Lanka

Contacts

Public ContactProfessor. Colvin Goonaratna

Registrar, Ceylon Medical College Council

si7np5e@gmail.com4612643

Outcome results

None listed

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