Synthesis and Biological Activity Assessment of Different Diastereomers in siRNA Drug LEQVIO (Inclisiran) (U01) Clinical Trial Not Allowed
Status: Open
Posted date: November 24, 2023
Opportunity ID: 351130
Opportunity number: FOR-FD-24-007
Opportunity category: Discretionary
Agency name: Food and Drug Administration
Agency code: HHS-FDA
Award floor: $300,000
Award ceiling: $300,000
Cost sharing required: No
Funding Instrument Types
- Cooperative Agreement
Category of Funding Activity
- Agriculture
- Consumer Protection
- Food and Nutrition
Eligible Applicants
- City or township governments
- County governments
- For-profit organizations other than small businesses
- Independent school districts
- Native American tribal governments (Federally recognized)
- Native American tribal organizations (other than Federally recognized tribal governments)
- Nonprofits having a 501 (c) (3) status with the IRS, other than institutions of higher education
- Nonprofits that do not have a 501 (c) (3) status with the IRS, other than institutions of higher education
- Others
- Private institutions of higher education
- Public and State controlled institutions of higher education
- Public housing authorities/Indian housing authorities
- Small businesses
- Special district governments
- State governments
- Unrestricted
Categories (use these for quoted searches)
- agency_code:hhs_fda
- category_of_funding_activity:agriculture
- category_of_funding_activity:consumer_protection
- category_of_funding_activity:food_and_nutrition
- cost_sharing_or_matching_requirement:false
- eligible_applicants:city_or_township_governments
- eligible_applicants:county_governments
- eligible_applicants:for_profit_organizations_other_than_small_businesses
- eligible_applicants:independent_school_districts
- eligible_applicants:native_american_tribal_governments_federally_recognized
- eligible_applicants:native_american_tribal_organizations_other_than_federally_recognized_tribal_governments
- eligible_applicants:nonprofits_having_a_501_c_3_status_with_the_irs_other_than_institutions_of_higher_education
- eligible_applicants:nonprofits_that_do_not_have_a_501_c_3_status_with_the_irs_other_than_institutions_of_higher_education
- eligible_applicants:others
- eligible_applicants:private_institutions_of_higher_education
- eligible_applicants:public_and_state_controlled_institutions_of_higher_education
- eligible_applicants:public_housing_authoritiesindian_housing_authorities
- eligible_applicants:small_businesses
- eligible_applicants:special_district_governments
- eligible_applicants:state_governments
- eligible_applicants:unrestricted
- funding_instrument_type:cooperative_agreement
- opportunity_category:discretionary
- status:open
The purpose of this research is to systematically evaluate the diastereomeric composition of LEQVIO (Inclisiran), an FDA-approved, N-acetyl galactosamine (GalNAc)-conjugated siRNA drug, and to understand the biological/pharmacological activity of each diastereomer in LEQVIO through stereo chemically controlled synthesis and biological activity assessment using in vitro and animal models. The proposed studies will focus on 1) synthesis of each diastereomer of LEQVIO (Inclisiran) in stereo chemically pure form; 2) assessment of the biological activity of each stereo chemically pure diastereomer in inhibiting PCSK9 activity using in vitro assays and in a transgenic mouse model; 3) development of analytical methods to identify and characterize the stereochemical structure of each diastereomer in LEQVIO; and 4) assessment of the individual contribution of each diastereomer to the overall pharmacological activity of LEQVIO. Tools developed in this research can also be applied to other similar GalNAc-conjugated siRNAs specifically, and other siRNAs in general. Knowledge gained from this research will also contribute to the sameness evaluation of generic siRNAs, and to the quality control of oligonucleotide drugs.