Mirdametinib Patent Expiration

Mirdametinib was first introduced by Springworks Therapeutics Inc in its drug Gomekli on Feb 11, 2025.


Mirdametinib Patents

Given below is the list of patents protecting Mirdametinib, along with the drug name that holds that patent and the company name owning that drug.

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Drug Used in Drug Patent Number Drug Patent Title Drug Patent Expiry Drug Owner
Gomekli US12390430 Oct 10, 2044 Springworks
Gomekli US12029711 Dosage forms of mirdametinib Mar 15, 2044 Springworks
Gomekli US12383517 Dosage Forms Of Mirdametinib Mar 15, 2044 Springworks
Gomekli US12661330 Mirdametinib Treatment Feb 05, 2044 Springworks
Gomekli US11806322 Mirdametinib treatment Apr 09, 2043 Springworks
Gomekli US11839595 Mirdametinib treatment Mar 16, 2043 Springworks
Gomekli US11883375 Mirdametinib treatment Mar 16, 2043 Springworks
Gomekli US12220390 Mirdametinib treatment Mar 16, 2043 Springworks
Gomekli US12257215 Mirdametinib treatment Mar 16, 2043 Springworks
Gomekli US12324791 Mirdametinib treatment Mar 16, 2043 Springworks
Gomekli US11066358 Compositions of essentially pure form IV of N-((R)-2,3-dihydroxypropoxy)-3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-benzamide and uses thereof Feb 17, 2041 Springworks
Gomekli US11084780 Door construction Feb 17, 2041 Springworks
Gomekli US11453641 Methods of treating neurofibromatosis with N-((R)-2,3-dihydroxypropoxy)-3,4-difluoro-2-(2-fluoro-4-iodophenylamino)-benzamide Feb 17, 2041 Springworks
Gomekli US11571402 Dispersible formulations of N-((R)-2,3-dihydroxypropoly)-3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-benzamide and uses thereof Feb 17, 2041 Springworks
Gomekli US11806321 Non-linear dosing of mirdametinib Feb 17, 2041 Springworks
Gomekli US11819487 Treatment of neurofibromatosis type 1 (NF1) associated plexiform neurofibromas (PN) in pediatric patients with mirdametinib Feb 17, 2041 Springworks
Gomekli US12011424 Treatment of neurofibromatosis type 1 (NF1) associated plexiform neurofibromas (PN) in pediatric patients with mirdametinib Feb 17, 2041 Springworks
Gomekli US12037306 Methods of treating neurofibromatosis type 1 with N-((R))-2,3-dihydroxypropoxy)-3,4-difluoro-2-(2-fluoro-4-iodophenylamino)-benzamide Feb 17, 2041 Springworks
Gomekli US12090128 Dispersible formulations of n-((r)-2,3-dihydroxypropoxy)-3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-benazmide and uses thereof Feb 17, 2041 Springworks
Gomekli US12263146 Non-linear dosing of mirdametinib Feb 17, 2041 Springworks
Gomekli US12275688 Crystalline solids of MEK inhibitor N-((R)-2,3-dihydroxypropoxy)-3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-benzamide and uses thereof Feb 17, 2041 Springworks
Gomekli US12295925 Treatment of neurofibromatosis type 1 (NF1) associated plexiform neurofibromas (PN) in pediatric patients with mirdametinib Feb 17, 2041 Springworks
Gomekli US12357597 Dispersible Formulations Of N-((R)-2,3-Dihydroxypropoxy)-3,4-Difluoro-2-(2-Fluoro-4-Iodo-Phenylamino)-Benazmide And Uses Thereof Feb 17, 2041 Springworks



Mirdametinib's Family Patents

Family Patents

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Clinical Trials

Recent Clinical Trials on Mirdametinib:

Sometimes companies keep conducting clinical trials even after the drug's approval to discover new formulations, methods of use, or new treatment indications, so they could file for additional patents or receive regulatory exclusivity extensions, such as pediatric exclusivity, potentially delaying generic competition. Based on these recent clinical trials, generic companies need to consider the potential for new intellectual property or regulatory hurdles. These strategic moves by the drug owner might delay generic substitution or lead to additional sales of the brand drug, even after patent expiry.

Title Lead Sponsor Collaborators Status Phases
Clinical Trials
SJ901: Evaluation of Mirdametinib in Children, Adolescents, and Young Adults With Low-Grade Glioma St. Jude Children's Research Hospital NA RECRUITING
(Sep 1, 2026)
PHASE1, PHASE2
Mirdametinib in Histiocytic Disorders Children's Hospital Medical Center, Cincinnati NA RECRUITING
(Sep 1, 2026)
PHASE2
Effect of Hepatic Impairment on the Pharmacokinetics of Mirdametinib SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany NA RECRUITING
(Sep 1, 2026)
PHASE1
A Study of Mirdametinib in People With Central Nervous System Tumors Memorial Sloan Kettering Cancer Center NA RECRUITING
(Sep 1, 2026)
PHASE1, PHASE2
Combination Therapy (Mirdametinib and Sirolimus) for RAS Mutated Relapsed Refractory Multiple Myeloma National Cancer Institute (NCI) NA SUSPENDED
(Aug 26, 2026)
PHASE1, PHASE2
Mirdametinib + BGB-3245 in Advanced Solid Tumors SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany NA TERMINATED
(Aug 1, 2026)
PHASE1, PHASE2
Phase 1/2 Study of Mirdametinib + Vinblastine for Newly Diagnosed/Previously Untreated PLGG + Activation of MAPK St. Justine's Hospital NA RECRUITING
(Aug 1, 2026)
PHASE1, PHASE2
MEK Inhibitor Mirdametinib (PD-0325901) in Patients With Neurofibromatosis Type 1 Associated Plexiform Neurofibromas SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany NA ACTIVE NOT RECRUITING
(Jun 1, 2026)
PHASE2
Testing the Effectiveness of the Anti-cancer Drug, Mirdametinib, in Treating Relapsed, Refractory Chronic Lymphocytic Leukemia National Cancer Institute (NCI) NA RECRUITING
(May 1, 2026)
PHASE2
Mirdametinib Monotherapy in Adults With Neurofibromatosis 1 (NF1) and Cutaneous Neurofibromas (cNF). Johns Hopkins University NA RECRUITING
(Apr 1, 2026)
PHASE1, PHASE2


Mirdametinib Generic API Manufacturers

Given below is the list of companies who have filed for Mirdametinib generic, along with the locations of their manufacturing plants worldwide.