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Study of Hormonal Sideeffects in Patients Taking Levetiracetam, Carbamazepine or Lamotrigine for Epilepsy

This study has been completed.
Information provided by:
Rikshospitalet University Hospital Identifier:
First received: April 12, 2007
Last updated: July 26, 2011
Last verified: October 2009
Some antiepileptic drugs are found to have hormonal side effects. We want to study possible hormonal side effects of the relatively new antiepileptic drug; levetiracetam and compare it to the older drugs; lamotrigine and carbamazepine. The participants are going to fill in a questionnaire and we will collect blood samples from them, to analyse hormones.


Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Cross-Sectional
Official Title: Levetiracetam, Carbamazepine and Lamotrigine and Hormonal Side Effects in Adult Males and Females.

Resource links provided by NLM:

Further study details as provided by Rikshospitalet University Hospital:

Enrollment: 240
Study Start Date: January 2007
Study Completion Date: March 2009
Detailed Description:

We have previously performed long-term studies of rats treated with levetiracetam and compared them with a control group. Here we have found that levetiracetam has a probable effect on the ovaries, since the treated animals had larger ovaries, fewer cysts, more corpora lutea and more secondary follicles than the untreated animals (Taubøll et al 2004). Blood tests on the animals showed that those treated with levetiracetam had higher testosterone levels and lower levels of estrogen and FSH, whilst LH and progesterone levels were unaffected by the treatment (Svalheim et al, 2005a, b). Studies on cell cultures from pig ovaries, as carried out by our group in collaboration with Jagiellonian University, Krakow, Poland, appeared to support these findings (Taubøll et al. 2006, submitted).

Our wish therefore now is to study fertile men and women in order to look for any changes in the balance of sex hormones during use of levetiracetam in order to establish whether the findings in animal trials are clinically relevant to humans.


Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Patients from the outpatients clinic

Inclusion Criteria:

  • Having epilepsy
  • Age 18- 45
  • Using levetiracetam/ lamotrigine or carbamazepine in monotherapy for at least 6 months

Exclusion Criteria:

  • Hormonal diseases( ie; diabetes, hypo/ hyperthyroid disease)
  • Use of hormonal anticonception drugs or other hormonal drugs.
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Please refer to this study by its identifier: NCT00460070

Dep. of Neurology, Rikshospitalet Universty Hospital
Oslo, Norway, 0027
Sponsors and Collaborators
Rikshospitalet University Hospital
Principal Investigator: Erik Taubøll, MD unaffiliation
  More Information

Responsible Party: Erik Taubøll, Professor, Dep of Neurology, Rikshospitalet, OSLO Identifier: NCT00460070     History of Changes
Other Study ID Numbers: M52332
Study First Received: April 12, 2007
Last Updated: July 26, 2011

Additional relevant MeSH terms:
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
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
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
Nootropic Agents processed this record on April 26, 2017