Carbatrol Patent Expiration

Carbatrol is a drug owned by Takeda Pharmaceuticals Usa Inc. It is protected by 1 US drug patent filed in 2013 out of which all have expired. Based on its patents and exclusivities, its generic launch date is estimated to be Jun 15, 2016. Details of Carbatrol's patents and their expiration are given in the table below.

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Drug Patent Number Drug Patent Title Drug Patent Expiry Status
These drug patents focus on the other aspects of the drug like dosage, mode of administration (oral, tablet, capsules, liquids etc).
US5912013 Advanced drug delivery system and method of treating psychiatric, neurological and other disorders with carbamazepine
Jun, 2016

(10 years ago)

Expired

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US patents provide insights into the exclusivity only within the United States, but Carbatrol is protected by patents in multiple countries. Understanding the full scope of patent protection is crucial in strategizing market entry. By looking at the broader patent landscape, you can identify markets with weaker patent protection which could be ideal generic entry points. The following section offers details on Carbatrol's family patents as well as insights into ongoing legal events on those patents.

Carbatrol's Family Patents


Family Patents

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Clinical Trials

Recent Clinical Trials on Carbatrol:

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
A Study in Healthy Men to Test Whether Carbamazepine Influences the Amount of Verducatib in the Blood Boehringer Ingelheim NA RECRUITING
(Sep 1, 2026)
PHASE1
A Study to Learn How Fluconazole, Carbamazepine and Itraconazole Affect How the Body Processes ASP3082 in Healthy Adults Astellas Pharma Global Development, Inc. NA ACTIVE NOT RECRUITING
(Aug 1, 2026)
PHASE1
A Trial to Examine the Interaction of Repinatrabit With Ethinyl Estradiol/Norethindrone, Metformin,Carbamazepine, Rosuvastatin, and Methotrexate When Administered Together Otsuka Pharmaceutical Development & Commercialization, Inc. NA RECRUITING
(Aug 1, 2026)
PHASE1
A Study to Assess Potential Drug-Drug Interactions of E2086 in Healthy Participants Eisai Inc. NA NOT YET RECRUITING
(Aug 1, 2026)
PHASE1
A Trial of Lu AH69593 in Healthy Participants H. Lundbeck A/S NA NOT YET RECRUITING
(Aug 1, 2026)
PHASE1
A Drug-Drug Interaction (DDI) Study of Orforglipron With Carbamazepine in Healthy Participants Eli Lilly and Company NA COMPLETED
(Jun 1, 2026)
PHASE1
A Study to Evaluate the Effect of Food on the Single-Dose Pharmacokinetics and a Drug-Drug Interaction Evaluation of Itraconazole and Carbamazepine on INCB123667 When Administered Orally to Healthy Adult Participants Incyte Corporation NA COMPLETED
(Jun 1, 2026)
PHASE1
A Study to Test the Effects of Itraconazole and Carbamazepine on OPC-167832 in Healthy Men and Women Otsuka Pharmaceutical Development & Commercialization, Inc. NA COMPLETED
(Jun 1, 2026)
PHASE1
Drug-drug Interaction Trial of AP31969 and Carbamazepine or Itraconazole Acesion Pharma NA COMPLETED
(May 1, 2026)
PHASE1
To Evaluate Efficacy of Monotherapy of Oxcarbazepine Versus Combination of Gabapentin With Oxcarbazepine in the Management of Trigeminal Neuralgia Rehman Medical Institute - RMI NA COMPLETED
(May 1, 2026)
PHASE2, PHASE3
Ultra-Early Gamma Knife Stereotactic Radiosurgery for TN University of Alberta NA RECRUITING
(Apr 1, 2026)
PHASE2
Drug-Drug Interaction Study of Atumelnant in Healthy Participants Crinetics Pharmaceuticals Inc. NA COMPLETED
(Apr 1, 2026)
PHASE1
A Study to Learn if Multiple Doses of the Study Medicine Called Carbamazepine Changes How the Body Processes the Other Study Medicine PF-07248144 Pfizer NA COMPLETED
(Mar 1, 2026)
PHASE1
To Assess the Enzyme Inducing Effects of Carbamazepine on the PK of Mirdametinib in Healthy Participants SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany NA COMPLETED
(Mar 1, 2026)
PHASE1




Generic Launch

Generic Release Date:

Carbatrol's generic launch date based on the expiry of its last outstanding patent is estimated to be Jun 15, 2016 (This date is subject to change depending upon the patent filing activities by the drug owner or exclusivity additions to its drug application)

Carbatrol Generic API suppliers:

Carbamazepine is the generic name for the brand Carbatrol. 34 different companies have already filed for the generic of Carbatrol, with Taro having the maximum number of approved applications. Check out the entire list of companies who have already received approval for Carbatrol's generic

How can I launch a generic of Carbatrol before its drug patent expiration? :

You can seek FDA approval to launch a generic drug before the expiration of Carbatrol's patents related by providing a 'paragraph IV certification' in your application, which states that the patent submitted by the Carbatrol's sponsor is invalid, unenforceable, or will not be infringed by your generic product.

Given below are the details of the already filed Para IV certificates on Carbatrol -

Strength Submission Date Expiration Date of Last Qualifying Patent 180-Day Status First Applicant Approval Generic Competition Status
25 mg / 5 mL
🔒 Unlock
None
25 mg / 5 mL
🔒 Unlock
02 Feb, 2006 15 Jun, 2016 Extinguished Less


Alternative Brands for Carbatrol

Carbatrol which is used for treating neurological and other disorders such as epilepsy with twice daily oral dosing., has several other brand drugs using the same active ingredient (Carbamazepine). Given below is the list of those companies and their brand drugs, to help you identify new opportunities, assess competitors, and plan your market strategies more effectively.

Drug Owner Drug Name
Lundbeck Pharms Llc
Carnexiv
Validus Pharms
Equetro


Apart from brand drugs containing the same ingredient, some generics have also been filed for Carbamazepine, Carbatrol's active ingredient. Check the complete list of approved generic manufacturers for Carbatrol





About Carbatrol

Carbatrol is a drug owned by Takeda Pharmaceuticals Usa Inc. It is used for treating neurological and other disorders such as epilepsy with twice daily oral dosing. Carbatrol uses Carbamazepine as an active ingredient. Carbatrol was launched by Takeda in 1997.

Approval Date:

Carbatrol was approved by FDA for market use on 30 September, 1997.

Active Ingredient:

Carbatrol uses Carbamazepine as the active ingredient. Check out other Drugs and Companies using Carbamazepine ingredient

Treatment:

Carbatrol is used for treating neurological and other disorders such as epilepsy with twice daily oral dosing.

Dosage:

Carbatrol is available in capsule, extended release form for oral use. Given below is detailed information on Dosage -

Strength Dosage Form Availability Application Pathway
200MG CAPSULE, EXTENDED RELEASE Prescription ORAL
300MG CAPSULE, EXTENDED RELEASE Prescription ORAL
100MG CAPSULE, EXTENDED RELEASE Prescription ORAL