Glasdegib Explained

Tradename:Daurismo
Atc Prefix:L01
Atc Suffix:XJ03
Legal Ca:Rx-only
Legal Ca Comment:[1]
Legal Us:Rx-only
Legal Eu:Rx-only
Legal Eu Comment:[2] [3]
Index2 Label:as salt
Cas Number:1095173-27-5
Pubchem:25166913
Drugbank:DB11978
Unii:K673DMO5H9
Kegg:D10636
Kegg2:D11107
Chemspiderid:28518072
Chebi:145428
Chembl:2043437
Synonyms:PF-04449913
Iupac Name:1-[(2''R'',4''R'')-2-(1''H''-Benzimidazol-2-yl)-1-methyl-4-piperidinyl]-3-(4-cyanophenyl)urea
C:21
H:22
N:6
O:1
Smiles:CN1CCC(CC1C2=NC3=CC=CC=C3N2)NC(=O)NC4=CC=C(C=C4)C#N
Stdinchi:1S/C21H22N6O/c1-27-11-10-16(24-21(28)23-15-8-6-14(13-22)7-9-15)12-19(27)20-25-17-4-2-3-5-18(17)26-20/h2-9,16,19H,10-12H2,1H3,(H,25,26)(H2,23,24,28)/t16-,19-/m1/s1
Stdinchikey:SFNSLLSYNZWZQG-VQIMIIECSA-N

Glasdegib, sold under the brand name Daurismo, is a medication for the treatment of newly-diagnosed acute myeloid leukemia (AML) in adults older than 75 years or those who have comorbidities that preclude use of intensive induction chemotherapy.[4] [5] [6] It is taken by mouth and is used in combination with low-dose cytarabine.

The recommended dose of glasdegib is 100 mg orally once daily on days 1 to 28 in combination with cytarabine 20 mg subcutaneously twice daily on days 1 to 10 of each 28-day cycle in the absence of unacceptable toxicity or loss of disease control.

The most common adverse reactions are anemia, fatigue, hemorrhage, febrile neutropenia, musculoskeletal pain, nausea, edema, thrombocytopenia, dyspnea, decreased appetite, dysgeusia, mucositis, constipation, and rash.

It is a small molecule inhibitor of sonic hedgehog, which is a protein overexpressed in many types of cancer. It inhibits the sonic hedgehog receptor smoothened (SMO), as do most drugs in its class.[7]

History

Glasdegib was approved for medical use in the United States in December 2018.[8] [9] [10]

FDA approval was based on a multicenter, open-label, randomized study (BRIGHT AML 1003, NCT01546038) that included 115 subjects with newly-diagnosed AML who met at least one of the following criteria: a) age 75 years or older, b) severe cardiac disease, c) baseline Eastern Cooperative Oncology Group performance status of 2, or d) baseline serum creatinine >1.3 mg/dL. Subjects were randomized 2:1 to receive glasdegib, 100 mg daily, with LDAC 20 mg subcutaneously twice daily on days 1 to 10 of a 28-day cycle (N=77) or LDAC alone (N=38) in 28-day cycles until disease progression or unacceptable toxicity. The trial was conducted in United States, Canada and Europe.[11]

Efficacy was established based on an improvement in overall survival (date of randomization to death from any cause). With a median follow-up of 20 months, median survival was 8.3 months (95% CI: 4.4, 12.2) for the glasdegib + LDAC arm and 4.3 months (95% CI: 1.9, 5.7) for the LDAC alone arm and HR of 0.46 (95% CI: 0.30, 0.71; p=0.0002).

Glasdegib was granted priority review and orphan drug designation by the U.S. Food and Drug Administration (FDA).[12] It was granted orphan drug designation by the European Medicines Agency (EMA) in October 2017.[13]

Glasdegib was approved for medical use in the European Union in June 2020.

Notes and References

  1. Web site: Summary Basis of Decision (SBD) for Daurismo . Health Canada . 23 October 2014 . 29 May 2022.
  2. Web site: Daurismo EPAR . European Medicines Agency (EMA) . 28 April 2020 . 25 September 2020.
  3. Web site: Daurismo Product information . Union Register of medicinal products . 3 March 2023.
  4. FDA approves glasdegib for AML in adults age 75 or older or who have comorbidities . U.S. Food and Drug Administration (FDA) . 21 November 2018 . 25 March 2020.
  5. Web site: Daurismo- glasdegib tablet, film coated . DailyMed . 26 November 2019 . 25 March 2020.
  6. Thomas X, Heiblig M . An evaluation of glasdegib for the treatment of acute myelogenous leukemia . Expert Opinion on Pharmacotherapy . 21 . 5 . 523–530 . April 2020 . 32027196 . 10.1080/14656566.2020.1713094 . 211044663 .
  7. Web site: Glasdegib - AdisInsight . Adisinsight.springer.com . 2017-05-22.
  8. Web site: Drug Approval Package: Daurismo (glasdegib) . U.S. Food and Drug Administration (FDA) . 17 December 2018 . 25 March 2020.
  9. Web site: Daurismo: FDA-Approved Drugs . U.S. Food and Drug Administration (FDA) . 25 March 2020.
  10. Hoy SM . Glasdegib: First Global Approval . Drugs . 79 . 2 . 207–213 . February 2019 . 30666593 . 10.1007/s40265-018-1047-7 . 58541521 .
  11. Web site: Drug Trial Snapshot: Daurismo . U.S. Food and Drug Administration (FDA) . 21 November 2018 . 25 March 2020.
  12. Web site: Search Orphan Drug Designations and Approvals . U.S. Food and Drug Administration (FDA) . 24 December 1999 . 25 March 2020.
  13. Web site: EU/3/17/1923 . European Medicines Agency (EMA) . 17 September 2018 . 25 March 2020.