Clinical evaluation of prophylactic intranasal 1-phenyl-3-(4-phenyl-2-thiazolyl) guanidine (CL 88,277) medication against rhinovirus 44 challenge.

Abstract:

:The prophylactic intranasal medication with a new antiviral compound, 1-phenyl-3-(4 phenyl-2-thiazolyl) guanidine (CL 88,277) was evaluated in humans against rhinovirus 44 challenge. One ml containing 250 mg of CL 88,277 was administered to 10 seronegative volunteers three times a day plus one dose prior to the rhinovirus challenge (32 TCID 50) and for six consecutive post-challenge days. Ten other subjects received 56% polyethylene glycol (PEG-400), the solvent of CL 88,277 at the same time. Five subjects in each of the CL 88,277-treated and placebo-treated groups developed illness. There were no differences between the two groups in the occurrence of the severe illness and of the moderate and severe illnesses. Each sign and symptom occurred almost equally in the two groups and there was no difference in their scores between the two groups. The challenge virus was isolated from both groups but the total number of the virus isolates was less and the time span of virus excretion was shorter for the drug-treated group. The post-challenge serum antibody titers were markedly lower in the drug-treated group. Prophylactic intranasal CL 88,277 medication did not affect the course of illness induced by rhinovirus 44 challenge. It appears, however, that the virus replication in the nose was reduced and as a result the serum antibody response was diminished. PEG-400 caused a transient irritation of the nasal mucosa in all recipients.

journal_name

Med Microbiol Immunol

authors

Togo Y,Durr FE,Laurenzana DA

doi

10.1007/BF02126707

subject

Has Abstract

pub_date

1977-05-18 00:00:00

pages

37-44

issue

1

eissn

0300-8584

issn

1432-1831

journal_volume

163

pub_type

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