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Clinical Trial Summary

The pharmacological effects of PDC-748 were tested in numerous in vitro and in vivo studies. The existing pharmacologic findings suggest that PDC-748 possesses certain inhibitory activity to the citric acid- and capsaicin-induced cough reflex in guinea pigs with a dose-dependent manner. Furthermore, a previous Phase I/II uncontrolled, dose-escalating study has shown PDC-748 to be well tolerated and may help to alleviate daytime cough with a dose-responding manner.Hence, PhytoHealth Corporation intends to carry out a Phase II investigation to confirm the preliminary findings using placebo in the comparator group, and to further investigate PDC-748 with a dose escalating manner to establish the dose-response range for its antitussive effect, and if possible, to determine the maximal tolerable dose of PDC-748.

This is a randomized, double-blind, placebo-controlled, dose escalating study to evaluate the safety and efficacy of the escalating dose levels of PDC-748 in patients with acute cough.


Clinical Trial Description

n/a


Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Factorial Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT00547846
Study type Interventional
Source PhytoHealth Corporation
Contact
Status Completed
Phase Phase 2
Start date October 2007

See also
  Status Clinical Trial Phase
Completed NCT01597349 - Antitussive Effects of FP01 Lozenges in Subjects With Cough Due to Upper Respiratory Tract Infection Phase 2
Terminated NCT03569033 - Study of Gefapixant (MK-7264) in Acute Cough for Participants With Induced Viral Upper Respiratory Tract Infection (URTI) (MK-7264-013) Phase 2
Completed NCT02396706 - RCT to Evaluate the Efficacy and Safety of Ivy Leaves Cough Liquid vs. Placebo in the Treatment of Acute Cough Phase 2