Hormone Profiles in Adults With Newly Diagnosed Epilepsy

The recruitment status of this study is unknown because the information has not been verified recently.
Verified October 2007 by Chinese University of Hong Kong.
Recruitment status was  Recruiting
Sponsor:
Information provided by:
Chinese University of Hong Kong
ClinicalTrials.gov Identifier:
NCT00137709
First received: August 29, 2005
Last updated: October 30, 2007
Last verified: October 2007

August 29, 2005
October 30, 2007
November 2004
Not Provided
Fasting insulin/glucose ratio [ Time Frame: 12 months ]
Fasting insulin/glucose ratio.
Complete list of historical versions of study NCT00137709 on ClinicalTrials.gov Archive Site
  • Number of subjects with above normal upper limit(s) of: insulin level [ Time Frame: 12 months ]
  • testosterone [ Time Frame: 12 months ]
  • low-density lipoprotein (LDL) cholesterol [ Time Frame: 12 months ]
  • luteinizing hormone (LH)/follicle stimulating hormone (FSH) ratio [ Time Frame: 12 months ]
  • dehydroepiandrosterone (DHEA) [ Time Frame: 12 months ]
  • Number of subjects with above normal upper limit(s) of:
  • - Insulin level
  • - Testosterone
  • - LDL cholesterol
  • - LH/FSH ratio
  • - DHEA
Not Provided
Not Provided
 
Hormone Profiles in Adults With Newly Diagnosed Epilepsy
Hormone Profiles in Adults Treated With Valproate vs. Lamotrigine Monotherapy for Newly Diagnosed Epilepsy: A Prospective Randomised Study

Both sodium valproate and lamotrigine are currently used in the treatment of newly diagnosed epilepsy. Although they appear to have similar efficacy, they have different side effects, which have not been well studied. This study aims to compare one particular aspect of their possible side effects, namely whether they affect certain hormonal functions.

Sodium valproate is an established antiepileptic drug used against a broad range of seizure types. Lamotrigine, a newer antiepileptic drug available since late 1980s, has a similar range of action and is approved as first-line treatment for epilepsy in the United States and many European countries as well as in Hong Kong. Recently, concern has been raised over the association between valproate treatment and polycystic ovarian syndrome, a condition characterised by multiple cysts in the ovaries in women and a range of hormonal and metabolic disturbances. Cross-sectional studies from Finland suggest that up to 40% of women treated with valproate have polycystic ovaries. Lamotrigine substitution for valproate has been reported to normalise these parameters in some patients. Elevated serum insulin and androgen levels have also been reported in over 50% of male patients taking valproate for epilepsy. However, such high incidence of hormonal abnormalities associated with valproate treatment has not been reproduced in studies conducted in other western populations. No similar studies in Chinese patients have been reported. In addition, these cross-sectional studies suffer from many potential confounding factors, such as previous treatment with other antiepileptic drugs, variation in duration of treatment, thus limiting the ability to establish a causal relationship.

This phase IV study aims to examine whether valproate treatment is associated with hormonal abnormalities in Chinese epilepsy patients. Newly diagnosed patients will be randomised to receive valproate or lamotrigine and their hormonal profiles measured prospectively for 12 months.

Interventional
Phase 4
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Epilepsy
  • Drug: Sodium valproate
    Week 1 & 2 - 200mg twice daily Week 3 onwards - 400mg twice daily
  • Drug: Lamotrigine
    Week 1 - 25mg mane Week 2 - 25mg twice daily Week 3 - 25mg mane, 50mg nocte Week 4 onwards - 50mg twice daily
Not Provided
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruiting
80
July 2008
Not Provided

Inclusion Criteria:

  • Patients aged between 15 and 55
  • Ethnically Chinese
  • Newly diagnosed epilepsy requiring antiepileptic drug treatment; or patients previously treated with antiepileptic drugs but have withdrawn from medication for at least 1 year, and now require resumption of antiepileptic drug therapy due to seizure relapse.

Exclusion Criteria:

  • Post-menopausal women.
  • Pregnant women.
  • Women who have undergone oophorectomy.
  • Women taking or have taken oral contraceptive pills in the previous 3 months.
  • Women diagnosed with or suspected to have polycystic ovarian syndrome.
  • Subjects with diabetes mellitus.
  • Subjects receiving hormone replacement or glucocorticoids.
  • Subjects receiving long-term warfarin.
  • Subjects suffering from significant systemic diseases, or illnesses that interfere with pituitary-gonadal functions.
  • Subjects with a progressive or degenerative neurological disorder.
  • Subjects who are unable to take their medication reliably.
Both
15 Years to 55 Years
No
Contact: Patrick Kwan, FHKAM 852-2632-2211 patrickkwan@cuhk.edu.hk
Contact: Evelyn Yu, MSc 852-2632-3856 evelyn.yu@cuhk.edu.hk
Hong Kong
 
NCT00137709
CRE-2004.399
Not Provided
Not Provided
Chinese University of Hong Kong
Not Provided
Principal Investigator: Patrick Kwan, FHKAM Chinese University of Hong Kong
Chinese University of Hong Kong
October 2007

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP