Purple Book reference family · 351(a) biologic
Tetanus and Diphtheria Toxoids Adsorbed (Tdvax)
Tetanus and Diphtheria Toxoids Adsorbed is an FDA-licensed reference biologic from MassBiologics.
351(a) biologicBLA 101322 MassBiologics
Biosimilars
0
Interchangeables
0
Listed patents
0
Reference approved
1970
Reference product
Originator biologic
351(a)BLA 101322
Tdvax Tetanus and Diphtheria Toxoids Adsorbed
MassBiologics
View full reference-product record- Approved
- Marketing
- Disc
- Center
- CBER
- Patents
- None listed
Exclusivity & patent cliffs
Protection horizon
Reference approval
Approval date of the reference Tetanus and Diphtheria Toxoids Adsorbed product.
56 yr 10 mo ago
Tetanus and Diphtheria Toxoids Adsorbed: frequently asked questions
Reference exclusivity, biosimilars, interchangeability, and patents for this molecule, from the FDA Purple Book.
Built from official FDA Purple Book records (monthly downloads, the Advanced Search interface, and the published Patent List), with reference-product, license-type, and exclusivity context for Tetanus and Diphtheria Toxoids Adsorbed.
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- FDA 483 DatabaseFDA Form 483 observations and inspection records by firm, date, and citation.

