Biology:Inotersen

From HandWiki
Short description: Pharmaceutical drug
Inotersen
Clinical data
Trade namesTegsedi
Other namesGSK-2998728, ISIS-420915
AHFS/Drugs.comMonograph
License data
Routes of
administration
Subcutaneous
Drug classAntisense oligonucleotides
ATC code
Legal status
Legal status
Identifiers
CAS Number
PubChem CID
DrugBank
UNII
KEGG
Chemical and physical data
FormulaC230H318N69O121P19S19
Molar mass7183.08 g·mol−1
3D model (JSmol)

Inotersen, sold under the brand name Tegsedi, is a 2'-O-(2-methoxyethyl) (2'-MOE) antisense oligonucleotide medication used for the treatment of nerve damage in adults with hereditary transthyretin-mediated amyloidosis.[5][6] The sequence is TCTTG GTTACATGAA ATCCC, where C is methylated C, and the first and third section (bases 1-5 and 16–20, separated from the middle section by spaces) are MOE-modified.[7]

The most common side effects are injection site reactions (redness, swelling, bleeding, pain, rash, and itching at the injection site), nausea, headache, tiredness, low platelet counts, and fever.[5]

Inotersen can cause serious side effects, including low platelet counts and kidney inflammation.[5] Because of these serious side effects, Inotersen is available in the United States only through a restricted program called the Tegsedi Risk Evaluation and Mitigation (REMS) Program.[5]

The U.S. Food and Drug Administration (FDA) considers it to be a first-in-class medication.[8]

History

Inotersen was approved for medical use in the European Union in July 2018.[4]

The U.S. Food and Drug Administration (FDA) approved inotersen in October 2018.[5] The application for inotersen was granted orphan drug designation.[9]

The FDA approved inotersen based on evidence from one clinical trial (Trial 1/NCT01737398) that included 172 patients with hereditary transthyretin-mediated amyloidosis.[5] The trial was conducted at 24 sites in Australia, Europe, South America, and the United States.[5]

The benefits and side effects of inotersen were evaluated in one clinical trial that enrolled patients with hereditary transthyretin-mediated amyloidosis.[5] Patients were randomly assigned to receive inotersen or placebo by subcutaneous injection given once a week for 65 weeks.[5] During the first week of treatment, patients received three doses of treatment, followed by once weekly subcutaneous injections for 64 weeks.[5] Neither the patients nor the health care providers knew which treatment was being given until after the trial was completed.[5]

References

  1. "PrTEGSEDITM inotersen injection". Product Monograph Including Patient Medication Information. Akcea Therapeutics, Inc.. https://pdf.hres.ca/dpd_pm/00064890.PDF. 
  2. "Tegsedi 284 mg solution for injection in pre-filled syringe - Summary of Product Characteristics (SmPC)". 15 October 2019. https://www.medicines.org.uk/emc/product/10011. 
  3. "Tegsedi- inotersen injection, solution". 2 September 2020. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=8513207e-b55f-417b-9473-af785146a543. 
  4. 4.0 4.1 "Tegsedi EPAR". 17 September 2018. https://www.ema.europa.eu/en/medicines/human/EPAR/tegsedi. 
  5. 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 5.10 "Drug Trial Snapshot: Tegsedi". 23 July 2019. https://www.fda.gov/drugs/drug-approvals-and-databases/drug-trial-snapshot-tegsedi.  This article incorporates text from this source, which is in the public domain.
  6. "Inotersen (transthyretin-specific antisense oligonucleotide) for treatment of transthyretin amyloidosis". Neurodegenerative Disease Management 9 (1): 25–30. February 2019. doi:10.2217/nmt-2018-0037. PMID 30561247. 
  7. "Population Pharmacokinetic-Pharmacodynamic Modeling of Inotersen, an Antisense Oligonucleotide for Treatment of Patients with Hereditary Transthyretin Amyloidosis". Nucleic Acid Therapeutics 30 (3): 153–163. June 2020. doi:10.1089/nat.2019.0822. PMID 32286934. 
  8. (PDF) New Drug Therapy Approvals 2018 (Report). January 2019. https://www.fda.gov/media/120357/download. Retrieved 16 September 2020. 
  9. "Inotersen Orphan Drug Designation and Approval". 24 July 2012. https://www.accessdata.fda.gov/scripts/opdlisting/oopd/detailedIndex.cfm?cfgridkey=374512.  This article incorporates text from this source, which is in the public domain.

External links