This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

The Efficacy and Safety of Low Dose Combination of LTG and VPA Compared to CBZ Monotherapy

This study has been completed.
Information provided by (Responsible Party):
Yonsei University Identifier:
First received: November 28, 2008
Last updated: June 29, 2015
Last verified: June 2015
To evaluate the efficacy of usual monotherapy and low dose combination of Lamotrigine and Valproate. Low dose combination may be more effective and tolerable because they are low dose and VPA reduce Lamotrigine metabolism.

Condition Intervention Phase
Epilepsy Drug: Carbamazepine Drug: Lamotrigine/Valproate Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open Label, Randomized, Multicenter Clinical Trial to Compare the Efficacy and Safety of Lamotrigine / Valproate Coadministration and Carbamazepine as Initial Pharmacotherapy in Epilepsies (Phase Ⅳ)

Resource links provided by NLM:

Further study details as provided by Yonsei University:

Primary Outcome Measures:
  • Retention Rate After 52 Weeks Maintenance Period [ Time Frame: 52 weeks ]
    * Retention rate means completion rate (CR), the proportion of patients who have completed the 60-week study as planned.

Secondary Outcome Measures:
  • Seizure Free Rate for 24 Weeks at Initial Target Dose [ Time Frame: 24 weeks ]
  • Seizure Free Rate for 52 Weeks at Initial Target Dose [ Time Frame: 52 weeks ]

Enrollment: 207
Study Start Date: March 2008
Study Completion Date: May 2012
Primary Completion Date: May 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Carbamazepine
Drug: Carbamazepine
Experimental: Lamotrigine/Valproate
Lamotrigine and Valproate combination therapy
Drug: Lamotrigine/Valproate

Detailed Description:
An Open label, Randomized, Multicenter Clinical Trial to Compare the Efficacy and Safety of Lamotrigine / Valproate Coadministration and Carbamazepine as Initial Pharmacotherapy in Epilepsies

Ages Eligible for Study:   16 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Age ≥16yr old
  • Who are diagnosed as epilepsy definitely
  • Who have minimum 2 unprovoked seizures and minimum 1 seizure in previous 3 months
  • Who need AED therapy and no AED medication for previous 1 year (exclude emergency medication for less than 2weeks)
  • Who is not pregnant
  • Who can report seizure diary by him/herself or caregiver
  • Who agree to this trial and provide informed consent.
  • Type of seizures : of generalized tonic-clonic, complex partial, and/or simple partial motor seizures;

Exclusion Criteria:

  • Who has progressive CNS disease.
  • Has serious systemic or psychiatric disease
  • Who is not suitable by investigator(uncooperative)
  • Who can not fill up diary check card
  • Is pregnant, breastfeeding, or planning to become pregnant
  • Exclusion - absence s. juvenile myoclonic epilepsy, atonic seizure, alcohol or other substance abusers, mental retardation etc.
  • Who cancels to agree to this trial and provide informed consent.
  • ALT, AST, bilirubin and BUN/Cr levels are more than twice normal range of them
  • WBC value is 2000 and less, Hb value is 9.0 and less, platelet count is 100,000 and less in CBC
  • Who took investigation products before participating this study
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00807989

Korea, Republic of
Yonsei Medical Center
Seoul, Korea, Republic of, 120-752
Sponsors and Collaborators
Yonsei University
Principal Investigator: Byung-In Lee Yonsei Univ.
Principal Investigator: Kyoung Heo Yonsei Univ.
Principal Investigator: Sang-Kun Lee Seoul National Univ.
Principal Investigator: Sang-Ahm Lee Ulsan Univ.
Principal Investigator: Dong-Jin Shin Gacheon Univ.
Principal Investigator: Hong-Ki Song Hallym Univ.
Principal Investigator: Young-In Kim Catholic Univ.
Principal Investigator: Se-Jin Lee Youngnam Univ.
Principal Investigator: Sang-Ho Kim Donga Univ.
Principal Investigator: Myung-Gyu Kim Cheonnam Univ.
Principal Investigator: Yo-Sik Kim Wonkwang Univ.
Principal Investigator: Sang-Do Lee Dongsan Hosp.
Principal Investigator: Sung-Eun Kim Pusan-Bak Hosp.
Principal Investigator: Sung-Pa Park Kyungbuk Univ.
Principal Investigator: Joo-Yong Kim Hanrim Univ.
Principal Investigator: Ok-Jun Kim Bundang Cha
Principal Investigator: Soon-Ki Noh Bong-Sang Hosp.
Principal Investigator: Hyang-Woon Lee I-wha Univ.
Principal Investigator: Jae-Moon Kim Chungnam Univ.
  More Information

Responsible Party: Yonsei University Identifier: NCT00807989     History of Changes
Other Study ID Numbers: 109887
Study First Received: November 28, 2008
Results First Received: January 20, 2014
Last Updated: June 29, 2015

Additional relevant MeSH terms:
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Valproic Acid
Calcium Channel Blockers
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Excitatory Amino Acid Antagonists
Excitatory Amino Acid Agents
Neurotransmitter Agents
Physiological Effects of Drugs
Voltage-Gated Sodium Channel Blockers
Sodium Channel Blockers
Enzyme Inhibitors
GABA Agents
Antimanic Agents
Tranquilizing Agents
Central Nervous System Depressants
Psychotropic Drugs
Analgesics, Non-Narcotic
Sensory System Agents
Peripheral Nervous System Agents
Cytochrome P-450 CYP3A Inducers
Cytochrome P-450 Enzyme Inducers processed this record on September 19, 2017