TEGSEDI Solution for injection Ref.[116635] Active ingredients: Inotersen

Source: European Medicines Agency (EU)  Revision Year: 2026  Publisher: Akcea Therapeutics Ireland Ltd, St. James House, 72 Adelaide Road, Dublin 2, D02 Y017, Ireland

Product name and form

Tegsedi 284 mg solution for injection in pre-filled syringe.

Pharmaceutical Form

Solution for injection (injection).

Clear, colourless to pale yellow solution (pH 7.5–8.8).

Qualitative and quantitative composition

Each ml contains 189 mg inotersen (as inotersen sodium).

Each pre-filled syringe contains 284 mg inotersen (as inotersen sodium) in 1.5 mL of solution.

For the full list of excipients, see section 6.1.

Active Ingredient

Inotersen is a 2′-O-2-methoxyethyl (2′-MOE) phosphorothioate antisense oligonucleotide (ASO) inhibitor of human transthyretin (TTR) production. The selective binding of inotersen to the TTR messenger RNA (mRNA) causes the degradation of both mutant and wild type (normal) TTR mRNA. This prevents the synthesis of TTR protein in the liver, resulting in significant reductions in the levels of mutated and wild type TTR protein secreted by the liver into the circulation.

List of Excipients

Water for injections
Hydrochloric acid (for pH adjustment)
Sodium hydroxide (for pH adjustment)

Pack sizes and marketing

1.5 mL solution in a clear Type 1 glass pre-filled syringe.

Tray with tear-off lid.

Pack sizes of 1 or 4 pre-filled syringes. Not all pack sizes may be marketed.

Marketing authorization holder

Akcea Therapeutics Ireland Ltd, St. James House, 72 Adelaide Road, Dublin 2, D02 Y017, Ireland

Marketing authorization dates and numbers

EU/1/18/1296/001
EU/1/18/1296/002

Date of first authorisation: 06 July 2018
Date of latest renewal: 24 March 2023

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