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Eteplirsen: Drug information

Eteplirsen: Drug information
(For additional information see "Eteplirsen: Patient drug information" and see "Eteplirsen: Pediatric drug information")

For abbreviations, symbols, and age group definitions used in Lexicomp (show table)
Brand Names: US
  • Exondys 51
Pharmacologic Category
  • Antisense Oligonucleotide
Dosing: Adult
Duchenne muscular dystrophy

Duchenne muscular dystrophy: IV: 30 mg/kg once weekly.

Dosing: Kidney Impairment: Adult

There are no dosage adjustments provided in the manufacturer’s labeling (has not been studied).

Dosing: Hepatic Impairment: Adult

There are no dosage adjustments provided in the manufacturer’s labeling (has not been studied).

Dosing: Adjustment for Toxicity: Adult

Hypersensitivity reactions: Consider slowing the infusion or interrupting therapy.

Dosing: Pediatric

(For additional information see "Eteplirsen: Pediatric drug information")

Duchenne muscular dystrophy

Duchenne muscular dystrophy (DMD): Male children ≥7 years and Adolescents: IV: 30 mg/kg/dose once weekly; in the clinical trials, patients ranged in age from 7 to 13 years (Ref).

Dosing: Kidney Impairment: Pediatric

There are no dosage adjustments provided in the manufacturer's labeling (has not been studied).

Dosing: Hepatic Impairment: Pediatric

There are no dosage adjustments provided in the manufacturer's labeling (has not been studied).

Adverse Reactions

The following adverse drug reactions and incidences are derived from product labeling unless otherwise specified. Incidences include reactions experienced with approved and unapproved doses.

>10%:

Dermatologic: Contact dermatitis

Gastrointestinal: Vomiting

Nervous system: Balance impairment

Frequency not defined: Hypersensitivity: Hypersensitivity reaction

Postmarketing:

Cardiovascular: Flushing

Endocrine & metabolic: Dehydration

Genitourinary: Proteinuria

Nervous system: Malaise

Respiratory: Bronchospasm, cyanosis of the lips

Miscellaneous: Fever

Contraindications

There are no contraindications listed in the manufacturer's labeling.

Warnings/Precautions

Concerns related to adverse effects:

• Hypersensitivity: Hypersensitivity reactions (including bronchospasm, chest pain, cough, tachycardia, and urticaria) have been reported with use; manage appropriately and consider slowing the infusion rate or interrupting therapy.

Dosage Forms: US

Excipient information presented when available (limited, particularly for generics); consult specific product labeling.

Solution, Intravenous [preservative free]:

Exondys 51: 50 mg/mL (2 mL, 10 mL)

Generic Equivalent Available: US

No

Pricing: US

Solution (Exondys 51 Intravenous)

100 mg/2 mL (per mL): $960.00

500 mg/10 mL (per mL): $960.00

Disclaimer: A representative AWP (Average Wholesale Price) price or price range is provided as reference price only. A range is provided when more than one manufacturer's AWP price is available and uses the low and high price reported by the manufacturers to determine the range. The pricing data should be used for benchmarking purposes only, and as such should not be used alone to set or adjudicate any prices for reimbursement or purchasing functions or considered to be an exact price for a single product and/or manufacturer. Medi-Span expressly disclaims all warranties of any kind or nature, whether express or implied, and assumes no liability with respect to accuracy of price or price range data published in its solutions. In no event shall Medi-Span be liable for special, indirect, incidental, or consequential damages arising from use of price or price range data. Pricing data is updated monthly.

Administration: Adult

IV: Administer by IV infusion over 35 to 60 minutes through a 0.2-micron inline filter; complete infusion within 4 hours of dilution. Consider slowing the infusion or interrupting therapy for hypersensitivity reactions. Flush IV access line with NS prior to and after infusion. Do not mix with other medications or infuse other medications concomitantly via the same IV access line.

Administration: Pediatric

IV: Must be diluted prior to administration. Administer by IV infusion over 35 to 60 minutes through a 0.2-micron inline filter; infusion must be completed within 4 hours of preparation. Flush IV access line with NS prior to and after infusion; may consider application of a topical anesthetic cream to the infusion site prior to administration. Do not mix with other medications or infuse other medications concomitantly via the same IV access line. If a dose is missed, administer as soon as possible after the scheduled time.

Use: Labeled Indications

Duchenne muscular dystrophy: Treatment of Duchenne muscular dystrophy (DMD) in patients who have a confirmed mutation of the DMD gene that is amenable to exon 51 skipping.

Metabolism/Transport Effects

None known.

Drug Interactions

There are no known significant interactions.

Pregnancy Considerations

Animal reproduction studies have not been conducted. Eteplirsen has not been studied in patients assigned female at birth.

Breastfeeding Considerations

It is not known if eteplirsen is present in breast milk. According to the manufacturer, the decision to breastfeed during therapy should take into account the risk of infant exposure, the benefits of breastfeeding to the infant, and benefits of treatment to the mother. Eteplirsen has not been studied in patients assigned female at birth.

Mechanism of Action

Binds to exon 51 of dystrophin pre-messenger RNA (mRNA), resulting in exclusion of this exon during mRNA processing. Exon skipping allows for production of an internally truncated dystrophin protein.

Pharmacokinetics (Adult Data Unless Noted)

Distribution: Vdss: 600 mL/kg

Protein binding: 6% to 17%

Half-life elimination: 3 to 4 hours

Time to peak: 1.1 to 1.2 hours

Excretion: Renal

Brand Names: International
International Brand Names by Country
For country code abbreviations (show table)

  • (AE) United Arab Emirates: Exondys 51;
  • (KW) Kuwait: Exondys 51;
  • (LB) Lebanon: Exondys 51;
  • (PR) Puerto Rico: Exondys 51
  1. Exondys 51 (eteplirsen) [prescribing information]. Cambridge, MA: Sarepta Therapeutics Inc; July 2020.
  2. Exondys 51 (eteplirsen) [prescribing information]. Cambridge, MA: Sarepta Therapeutics Inc; January 2022.
  3. Mendell JR, Goemans N, Lowes LP, et al; Eteplirsen Study Group and Telethon Foundation DMD Italian Network. Longitudinal effect of eteplirsen versus historical control on ambulation in Duchenne muscular dystrophy. Ann Neurol. 2016;79(2):257-271. doi: 10.1002/ana.24555. [PubMed 26573217]
  4. Mendell JR, Rodino-Klapac LR, Sahenk Z, et al; Eteplirsen Study Group. Eteplirsen for the treatment of Duchenne muscular dystrophy. Ann Neurol. 2013;74(5):637-647. doi: 10.1002/ana.23982. [PubMed 23907995]
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