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CompletedNCT00223262Updated Apr 16, 2019Results posted

Clinical Trial of Lamotrigine to Reverse Cognitive Impairment in Chronic Corticosteroid-Treated Patients

A Phase 4 interventional study of Lamotrigine (Drug) in Memory Impairment Due to Corticosteroid Use, Hypomania Due to Corticosteroid Use and Hippocampal Atrophy Due to Corticosteroid, sponsored by University of Texas Southwestern Medical Center. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2019-04-16.

Sponsored by University of Texas Southwestern Medical Center · Phase 4 and Interventional

Phase
Phase 4
Study type
Interventional
Enrollment
28
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of this study is to determine if lamotrigine therapy is associated with improvement in mood, memory and hippocampal size and function in patients receiving chronic corticosteroid therapy. Standard care for mood changes associated with corticosteroid therapy, if severe, includes antidepressants or other medications which can influence mood. No therapies, other than dose reduction or discontinuation, are currently available for memory loss associated with corticosteroid treatment. However, very little information is available on the treatment of either mood or memory changes associated with corticosteroid treatment, thus the proposed project may improve standard care.

02

Conditions studied

  • Memory Impairment Due to Corticosteroid Use
  • Hypomania Due to Corticosteroid Use
  • Hippocampal Atrophy Due to Corticosteroid

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03

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All

Inclusion criteria

  • Current Corticosteroid Use of 7 mg or more for 6+ months
  • 18-65 years of age

Exclusion criteria

Exclusion Criteria:

  • Primarily non-English speaking
  • Pregnant/nursing woman
  • Currently taking Depakote
  • Currently taking Rifampin
  • Has diagnosis of major depressive disorder, schizophrenia, PTSD, bipolar I or bipolar II (not related to corticosteroid use)
  • Diseases with CNS involvement
  • Is to start a brief steroid taper
  • History of Alcohol/drug abuse/dependence
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Study design

Phase
Phase 4
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
28 participants (actual)

Interventions

  • DrugLamotrigine (Drug)
05

What researchers measure

Primary outcomes

  1. Rey Auditory Verbal Learning Test (RAVLT)

    Rey Auditory Verbal Learning Test (RAVLT) is a test of verbal learning and declarative memory. During the test, 15 nouns that are read aloud for 5 consecutive trials. Each trial is followed by a free recall test (participant is asked to recall the words that were just read to them). The sum of correctly recalled words across 5 trials is called the total raw score. On completion of Trial 5, an interference list of 15 words (List B) is presented, followed by a free recall test of that list. After a 20-min delay, the examinee is again required to recall the words from list A - this is called the delay raw score. The raw scores on both the total recall and the delay trials (number of words correct across trials 1-5) are converted to standardized T-scores (Mean=50; SD=10; range 20-100) based on participant age and gender. The scores below are presented as T-scores, with higher scores indicative of better performance.

    Time frame: 24 weeks

06

Results

Posted Apr 16, 2019

Participant flow

Participant flow — Overall Study
MilestoneLamotriginePlacebo
Started1612
Completed811
Not completed81

Outcome measures

PrimaryRey Auditory Verbal Learning Test (RAVLT)

Rey Auditory Verbal Learning Test (RAVLT) is a test of verbal learning and declarative memory. During the test, 15 nouns that are read aloud for 5 consecutive trials. Each trial is followed by a free recall test (participant is asked to recall the words that were just read to them). The sum of correctly recalled words across 5 trials is called the total raw score. On completion of Trial 5, an interference list of 15 words (List B) is presented, followed by a free recall test of that list. After a 20-min delay, the examinee is again required to recall the words from list A - this is called the delay raw score. The raw scores on both the total recall and the delay trials (number of words correct across trials 1-5) are converted to standardized T-scores (Mean=50; SD=10; range 20-100) based on participant age and gender. The scores below are presented as T-scores, with higher scores indicative of better performance.

Time frame:
24 weeks
Reported as:
Mean · T-scores
Rey Auditory Verbal Learning Test (RAVLT)
T-scoresLamotriginePlacebo
Rey Auditory Verbal Learning Test (RAVLT)46.1 ± 15.040.1 ± 11.0

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Lamotrigine0/8 (0%)0/8 (0%)0/8 (0%)
Placebo0/11 (0%)0/11 (0%)0/11 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)LamotriginePlaceboTotal
Mean44.6 ± 11.247.4 ± 13.346.0 ± 12.3
Sex: Female, Male
Sex: Female, Male(Participants)LamotriginePlaceboTotal
Female134
Male7815
Region of Enrollment
Region of Enrollment(participants)LamotriginePlaceboTotal
United States81119
07

Study locations

1 site
  • The UT Southwestern Medical Center
    Dallas, Texas 75390-8843, United States
08

Registry details

Key details

Study ID
NCT00223262
Lead sponsor
University of Texas Southwestern Medical Center
First posted
Sep 22, 2005
Start date
Aug 2002
Primary completion
Sep 2005
Completion
Sep 2005
Results posted
Apr 16, 2019
Last update
Apr 16, 2019

Study contacts

E. Sherwood Brown, Ph.D., M.D.
principal investigator · The UT Southwestern Medical Center
View the source record on ClinicalTrials.gov ↗

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