Composite adjuvant and novel coronavirus COVID-19 recombinant protein vaccine using composite adjuvant

A COVID-19, recombinant protein technology, applied in the field of new crown COVID-19 recombinant protein vaccine, can solve the problems of limited immune enhancement, pain, allergies, etc., and achieve the effect of rapid preparation

Pending Publication Date: 2021-10-22
SINOVAC RES & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned adjuvants are widely approved for use in vaccine preparation, in practical applications, low doses of aluminum salt adjuvants alone have limited immune

Method used

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  • Composite adjuvant and novel coronavirus COVID-19 recombinant protein vaccine using composite adjuvant
  • Composite adjuvant and novel coronavirus COVID-19 recombinant protein vaccine using composite adjuvant
  • Composite adjuvant and novel coronavirus COVID-19 recombinant protein vaccine using composite adjuvant

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1

[0042] This embodiment provides a composite adjuvant composed of CpG oligodeoxynucleotide and aluminum hydroxide; wherein, the mass ratio of CpG oligodeoxynucleotide and aluminum hydroxide is 1:0.6.

[0043] This embodiment further provides a combination of the compound adjuvant and the novel coronavirus COVID-19 recombinant vaccine.

[0044] Specifically: add CpG oligodeoxynucleotide adjuvant and aluminum hydroxide adjuvant to the vaccine stock solution filtered by a 0.22 μm filter membrane, so that the concentration of CpG adjuvant is 0.5 mg / dose and the content of aluminum hydroxide adjuvant is 0.3 mg / dose, vaccine antigen content 20μg / dose. The vaccine number obtained in this example is recorded as 20200401.

Example Embodiment

[0045] Example 2

[0046] This embodiment provides a composite adjuvant composed of CpG oligodeoxynucleotide and aluminum hydroxide; wherein, the mass ratio of CpG oligodeoxynucleotide and aluminum hydroxide is 1:0.6.

[0047] This embodiment further provides a combination of the compound adjuvant and the novel coronavirus COVID-19 recombinant vaccine.

[0048] Specifically: add CpG oligodeoxynucleotide adjuvant and aluminum hydroxide adjuvant to the vaccine stock solution filtered by a 0.22 μm filter membrane, so that the concentration of CpG adjuvant is 0.5 mg / dose and the content of aluminum hydroxide adjuvant is 0.3 mg / dose, vaccine antigen content 40μg / dose. The vaccine number obtained in this example is recorded as 20200402.

Example Embodiment

[0049] Example 3

[0050] This embodiment provides a composite adjuvant composed of CpG oligodeoxynucleotide and aluminum hydroxide; wherein, the mass ratio of CpG oligodeoxynucleotide and aluminum hydroxide is 1:0.9.

[0051] This embodiment further provides a combination of the compound adjuvant and the novel coronavirus COVID-19 recombinant vaccine.

[0052] Specifically: add CpG oligodeoxynucleotide adjuvant and aluminum hydroxide adjuvant to the vaccine stock solution filtered by 0.22 μm filter membrane, so that the concentration of CpG adjuvant is 0.5mg / dose, and the content of aluminum hydroxide adjuvant is 0.45mg / dose, vaccine antigen content 20μg / dose. The vaccine number obtained in this example is recorded as 20200403.

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Abstract

The invention discloses a composite adjuvant containing CpG oligodeoxynucleotide and an aluminum adjuvant, and a novel coronavirus COVID-19 recombinant protein vaccine using the composite adjuvant. The CpG oligodeoxynucleotide and the aluminum adjuvant are compounded for use, so that a strong immunological enhancement effect can be generated. When the composite adjuvant is applied to the novel coronavirus COVID-19 recombinant protein vaccine, the residence time of the novel coronavirus COVID-19 recombinant protein vaccine in vivo can be prolonged to a great extent, and the hydrolysis effect of various hydrolases on the novel coronavirus COVID-19 recombinant protein vaccine is reduced. The novel coronavirus COVID-19 recombinant protein vaccine using the composite adjuvant has the advantages of simple preparation method, easy quality control, easy large-scale production, good safety and low toxic and side effects, and is especially suitable for prevention and treatment of novel coronavirus COVID-19 in various people, including middle-aged and elderly people with low immune functions.

Description

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Claims

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Application Information

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Owner SINOVAC RES & DEV
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