Development, preparation and safety testing of a Clostridium welchii Type C toxoid. II. Laboratory evaluation of potency

The results obtained with four laboratory tests on four candidate formulations of Clostridium welchii Type C vaccine for use in man have been compared with clinical responses to the same vaccines. Quantal response assays in mice appeared to reflect the ranking of the four vaccines in human subjects...

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Published inJournal of biological standardization Vol. 7; no. 4; pp. 373 - 381
Main Authors Knight, P.A., Lucken, R.N., Foster, W., Walker, P.D.
Format Journal Article
LanguageEnglish
Published England Elsevier Science (USA) 1979
Subjects
Animals
Biological Assay
Clostridium Infections - prevention & control
Clostridium perfringens - immunology
Dose-Response Relationship, Immunologic
Guinea Pigs
Mice
Reference Standards
Regression Analysis
Toxoids - administration & dosage
Toxoids - standards
Vaccination
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Abstract The results obtained with four laboratory tests on four candidate formulations of Clostridium welchii Type C vaccine for use in man have been compared with clinical responses to the same vaccines. Quantal response assays in mice appeared to reflect the ranking of the four vaccines in human subjects better than did the guinea pig tests. They also enabled the potency of the vaccine preparations to be related to an existing International Reference Preparation. Mouse assays in which the animals received two spaced doses of vaccine prior to challenge yielded marginally more satisfactory results in terms of precision and reflection of human responses than did assays involving a single dose of vaccine.
AbstractList The results obtained with four laboratory tests on four candidate formulations of Clostridium welchii type C vaccine for use in man have been compared with clinical responses to the same vaccines. Quantal response assays in mice appeared to reflect the ranking of the four vaccines in human subjects better than did the guinea pig tests. They also enabled the potency of the vaccine preparations to be related to an existing International Reference Preparation. Mouse assays in which the animals received two spaced doses of vaccine prior to challenge yielded marginally more satisfactory results in terms of precision and reflection of human responses than did assays involving a single dose of vaccine.The results obtained with four laboratory tests on four candidate formulations of Clostridium welchii type C vaccine for use in man have been compared with clinical responses to the same vaccines. Quantal response assays in mice appeared to reflect the ranking of the four vaccines in human subjects better than did the guinea pig tests. They also enabled the potency of the vaccine preparations to be related to an existing International Reference Preparation. Mouse assays in which the animals received two spaced doses of vaccine prior to challenge yielded marginally more satisfactory results in terms of precision and reflection of human responses than did assays involving a single dose of vaccine.
The results obtained with four laboratory tests on four candidate formulations of Clostridium welchii type C vaccine for use in man have been compared with clinical responses to the same vaccines. Quantal response assays in mice appeared to reflect the ranking of the four vaccines in human subjects better than did the guinea pig tests. They also enabled the potency of the vaccine preparations to be related to an existing International Reference Preparation. Mouse assays in which the animals received two spaced doses of vaccine prior to challenge yielded marginally more satisfactory results in terms of precision and reflection of human responses than did assays involving a single dose of vaccine.
The results obtained with four laboratory tests on four candidate formulations of Clostridium welchii Type C vaccine for use in man have been compared with clinical responses to the same vaccines. Quantal response assays in mice appeared to reflect the ranking of the four vaccines in human subjects better than did the guinea pig tests. They also enabled the potency of the vaccine preparations to be related to an existing International Reference Preparation. Mouse assays in which the animals received two spaced doses of vaccine prior to challenge yielded marginally more satisfactory results in terms of precision and reflection of human responses than did assays involving a single dose of vaccine.
Author Lucken, R.N.
Walker, P.D.
Foster, W.
Knight, P.A.
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Cites_doi 10.1016/S0140-6736(79)90764-5
10.1016/0092-1157(73)90014-0
10.1016/S0092-1157(79)80006-2
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References British Pharmacopoeia Veterinary (bib2) 1977
British Pharmacopoeia (bib1) 1973
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Walker, Foster, Knight, Freestone, Lawrence (bib8) 1979; 7
Van Ramshorst, Cohen, Levine, Edsall (bib7) 1973; 1
Dalling, Glenny, Mason, O'Brien (bib3) 1928; 9
Davidson, Gray, Herbert, Lesslie (bib4) 1978; 56
Lawrence, Shann, Freestone, Walker (bib6) 1979
Lawrence (10.1016/S0092-1157(79)80012-8_bib6) 1979
Dalling (10.1016/S0092-1157(79)80012-8_bib3) 1928; 9
Davidson (10.1016/S0092-1157(79)80012-8_bib4) 1978; 56
(10.1016/S0092-1157(79)80012-8_bib5) 1977; Vol. III
Van Ramshorst (10.1016/S0092-1157(79)80012-8_bib7) 1973; 1
British Pharmacopoeia Veterinary (10.1016/S0092-1157(79)80012-8_bib2) 1977
Walker (10.1016/S0092-1157(79)80012-8_bib8) 1979; 7
British Pharmacopoeia (10.1016/S0092-1157(79)80012-8_bib1) 1973
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– start-page: 464
  year: 1973
  ident: bib1
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– volume: 1
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  publication-title: Journal of Biological Standardization
  doi: 10.1016/S0092-1157(79)80006-2
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Snippet The results obtained with four laboratory tests on four candidate formulations of Clostridium welchii Type C vaccine for use in man have been compared with...
The results obtained with four laboratory tests on four candidate formulations of Clostridium welchii type C vaccine for use in man have been compared with...
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SubjectTerms Animals
Biological Assay
Clostridium Infections - prevention & control
Clostridium perfringens - immunology
Dose-Response Relationship, Immunologic
Guinea Pigs
Mice
Reference Standards
Regression Analysis
Toxoids - administration & dosage
Toxoids - standards
Vaccination
Title Development, preparation and safety testing of a Clostridium welchii Type C toxoid. II. Laboratory evaluation of potency
URI https://dx.doi.org/10.1016/S0092-1157(79)80012-8
https://www.ncbi.nlm.nih.gov/pubmed/231607
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