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| Clinical data | |
|---|---|
| Trade names | Daybue |
| Other names | NNZ-2566 |
| AHFS/Drugs.com | Monograph |
| MedlinePlus | a623019 |
| License data |
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| Routes of administration | By mouth, feeding tube (gastrostomy tube) |
| ATC code | |
| Legal status | |
| Legal status | |
| Pharmacokinetic data | |
| Bioavailability | 84% |
| Metabolism | Insignificant |
| Elimination half-life | ~ 1.5 h |
| Excretion | Urine |
| Identifiers | |
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| CAS Number | |
| PubChem CID | |
| DrugBank | |
| ChemSpider | |
| UNII | |
| KEGG | |
| ChEBI | |
| ChEMBL | |
| Chemical and physical data | |
| Formula | C13H21N3O6 |
| Molar mass | 315.326 g·mol−1 |
| 3D model (JSmol) | |
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Trofinetide, sold under the brand name Daybue, is a medication used for the treatment of Rett syndrome. [4] It is taken by mouth. [4]
The most common adverse reactions include diarrhea and vomiting. [5]
Trofinetide was approved for medical use in the United States in March 2023. [4] [5] [6] [7] The US Food and Drug Administration (FDA) considers it to be a first-in-class medication. [8]
Trofinetide is indicated for the treatment of Rett syndrome in people two years of age and older. [4] [9]
Rett syndrome is a rare, genetic neurological and developmental disorder that affects the way the brain develops. [5] People with Rett syndrome experience a progressive loss of motor skills and language. [5] Most babies with Rett syndrome seem to develop as expected for the first six months of life. [5] These babies then lose skills they previously had attained at approximately six to 18 months of age — such as the ability to crawl, walk, communicate, or use their hands. [5] The hallmark of Rett syndrome is near constant repetitive hand movements, such as rubbing or clapping. [5] Rett syndrome leads to severe impairments affecting nearly every aspect of life, including the ability to speak, walk, eat, and breathe. [5]
It was developed by Neuren Pharmaceuticals that acts as an analogue of the neuropeptide (1-3) IGF-1, which is a simple tripeptide with sequence Gly-Pro-Glu obtained by enzymatic cleavage of the growth factor IGF-1 within the brain. Trofinetide has anti-inflammatory properties and was originally developed as a potential treatment for stroke, [10] [11] but has subsequently been developed for other applications and is approved by the FDA as an oral solution. It has successfully completed phase III clinical trial against Rett syndrome. [12] Trofinetide has also had a successful phase II trial against Fragile X syndrome. [13] [14] [15] The drug is manufactured by Acadia Pharmaceuticals. [4] [16]
The US Food and Drug Administration (FDA) evaluated the efficacy and safety of trofinetide based on a randomized, double-blind, placebo-controlled, 12-week study (Study 1; NCT04181723) of participants with Rett syndrome five to 20 years of age. [5] Participants were randomized to receive trofinetide (N=93) or matching placebo (N=94) for 12 weeks. [5] The dose of trofinetide was based on participant weight to achieve similar exposure in all participants. [5] The FDA granted the application for trofinetide priority review, orphan drug, and fast track designations. [5]