CClinicalTrials.gg
CompletedNCT00159965NESUpdated Nov 20, 2014Results posted

Treatments for Psychogenic Nonepileptic Seizures (NES)

A Phase 4 interventional study of sertraline and placebo in Convulsion, Non-Epileptic, Conversion Disorder and Depression, sponsored by Rhode Island Hospital. Completed at 1 site in United States. Open to participants aged 18 Years to 95 Years. Per ClinicalTrials.gov, last updated 2014-11-20.

Sponsored by Rhode Island Hospital · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
38
Allocation
Randomized
Ages
18 Years to 95 Years
Sex
All
01

Study summary

The investigators propose that treatment of the comorbid disorders (depression, anxiety, and impulsivity) with sertraline in patients with lone psychogenic nonepileptic seizures (NES), will result in a decreased number of NES. The purpose of this study is to provide pilot testing and data to inform the future randomized controlled trial based on the hypothesis.

Read the detailed description

This is a pilot, prospective, single center, randomized, placebo-controlled, double-blind trial, that assesses the number of NES in patients treated with flexible dose sertraline (Zoloft). This study will provide outcomes data and the effect size necessary for a future R01, multi-center randomized control trial. Secondary objective variables include reduction in depression, anxiety, impulsivity scores, and improvement in psychosocial functioning.

After being diagnosed with NES by video electroencephalogram monitoring (vEEG), up to 50 participants will be enrolled and monitored during a two week lead in period for their baseline NES and psychosocial symptoms and functioning. At week 2, they will be blindly randomized to the treatment arm with flexible dose sertraline (25 to 200mg) or to the placebo control arm. The dose will be titrated over 4 weeks up to 200mg or to dose limited by side effects. The subjects will stay on their maximum fixed dose for the next 4 weeks. At week 10, the subjects may elect to remain on the sertraline or they can taper off the medication over the final two weeks of the treatment trial.

After the treatment trial, the subjects will have follow up phone calls at month 4, 8, and 12 after enrollment to assess seizure status, medication usage, and global functioning.

Upon enrollment, subjects will be evaluated with a structured psychiatric and neurological exam, and with bi-weekly, 30 to 60 minute appointments where they will complete symptom and function scales. They will keep a seizure diary prospectively, to evaluate their daily seizure activity. They will be given two weeks of the medication at each visit.

In the first phase of the study 12 patients were screened and 8 enrolled in an open label trial of flexible dose sertraline. In the second phase of the study, 38 patients enrolled in the pilot, randomized, placebo-controlled trial.

02

Conditions studied

  • Convulsion, Non-Epileptic
  • Conversion Disorder
  • Depression
  • Stress Disorders, Post-Traumatic

Keywords

  • nonepileptic seizure
  • pseudoseizure
  • conversion disorder
  • psychogenic
  • Depression
  • Anxiety
  • Abuse
  • post-traumatic stress disorder
  • sertraline
  • serotonin
  • randomized controlled trial
03

In context

Seizures

881 studies on the registry are indexed under Seizures; 143 are open to participants now.

This study's enrollment of 38 is below the median of 64 across 610 interventional studies indexed under Seizures.

Browse Seizures studies →

Lead sponsor

Rhode Island Hospital is the lead sponsor of 187 studies on the registry; 37 are open to participants now.

Of its 11 completed or terminated interventional studies of FDA-regulated products, 2 (18%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 95 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Video electroencephalogram (vEEG) confirmed diagnosis of NES
  • Have at least one nonepileptic seizure per month
  • Comorbid diagnosis of either depression, anxiety, or post traumatic stress disorder (PTSD)
  • Able to complete self report symptom scales
  • Not receiving optimized antidepressant medication

Exclusion criteria

Exclusion Criteria:

  • Equivocal electroencephalogram (EEG) findings
  • Current suicidality, litigation, or self-mutilation
  • Using monoamine oxidase inhibitors (MAOIs), pimozide, or sumatriptan
  • Allergy/sensitivity to sertraline
  • Current alcohol/drug dependence
  • Serious medical illness requiring current hospitalization
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
38 participants (actual)

Study arms

  • Active comparator
    sertraline

    flexible dose sertraline, 25 to 200mg titration as tolerated, administered over 12 weeks with a two week untreated lead in period monitoring their baseline NES

    Drug: sertraline

  • Placebo comparator
    placebo

    flexible dose placebo, administered over 12 weeks with a two week untreated lead in period monitoring their baseline NES

    Drug: placebo

Interventions

  • Drugsertraline

    flexible dose sertraline

    Also known as: Zoloft

  • Drugplacebo

    flexible dose placebo

06

What researchers measure

Primary outcomes

  1. Number of Nonepileptic Seizures (NES)

    psychogenic nonepileptic seizure (NES) frequency, collected prospectively, using a daily seizure calendar; aggregated into biweekly intervals.

    Time frame: bi-weekly at baseline and weeks 2, 4, 6, 8, 10, 12

Secondary outcomes

  1. Beck Depression Inventory-II (BDI-II)

    The BDI-II assesses depression severity from "0" (no Depression-related symptom) to "3" (severe) on each question. The highest possible score is "51", relating to the worst outcome.

    Time frame: bi-weekly at baseline and weeks 2, 4, 6, 8, 10, 12

  2. Modified Hamilton Depression Scale (MHRS)

    The MHRS assesses the severity of Depression-related symptoms from "0" (not present) to "2", "3" or "4" (severe) on each question. The highest possible score is "72", relating to the worst outcome.

    Time frame: Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)

  3. Global Assessment of Functioning (GAF)

    This GAF rating scale ranges from 0 (worst) to 100 (best) and is used for evaluating the overall functioning of a subject during a specified time period on a continuum from psychological or psychiatric sickness to health.

    Time frame: Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)

  4. Davidson Trauma Scale (DTS)

    The DTS is a 17-item self-report scale measuring each Diagnostic and Stastical Manual of Mental Disorders-4th Edition (DSM-IV) symptom of post-traumatic stress disorder (PTSD) on 5-point frequency (0-not at all to 4-everyday) and severity (0-not at all distressing to 4-extremely distressing) scales. The highest possible score is 136 and relates to the worst outcome.

    Time frame: Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)

  5. Barratt Impulsivity Scale (BIS)

    The BIS is a 30 item self-report measure that characterizes four aspects of impulsiveness, and ranges from "rarely/ never" to "almost always" with a score of "1" to "4" possible on each question, giving a maximum possible score of 120 and minimum possible score of 30. Selected questions are reversed scored. Higher scores relate to a worse outcome.

    Time frame: Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)

  6. Dissociative Experiences Scale (DES)

    The DES is a 28 item self-report questionnaire designed to quantify dissociative experiences which identifies disturbances in memory, identity, cognition, derealization, depersonalization, absorption and imagination. A visual analogue scale is used ranging from 0% ("This never happens to you") to 100% ("This always happens to you"). The score is divided by 28 items to yield a range of 0 to 100%, with a higher score relating to a higher degree of dissociation.

    Time frame: Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)

  7. Symptom Checklist 90 (SCL-90)

    The SCL-90 is a 90 item self-report clinical rating scale oriented toward symptomatic behavior of outpatients, assessing from "0" (not at all bothered) to "4" (extremely bothered). The highest possible overall score is 360 and relates to a worse outcome.

    Time frame: Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)

  8. Oxford Handicap Scale (OHS)

    The OHS is a brief clinician scored assessment of symptoms and lifestyle interference and the 6 grades of disability are based on the modified Rankin Scale, ranging from "0" (no symptoms) to "5" (severe handicap). A higher score relates to a worse outcome.

    Time frame: Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)

  9. Clinical Global Impressions - Severity (CGI-S)

    The CGI-S is the first item of a two-item global rating scale, where each item is on a 7 point scale ranging from normal ("1") to among the most extremely ill patients ("7"). A higher score relates to a higher severity of illness.

    Time frame: Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)

  10. Clinical Global Impressions - Improvement (CGI-I)

    The CGI-I is the second item of a two item global rating scale, where each item is on a 7 point scale ranging from very much improved ("1") to very much worse ("7"). A lower score represents a higher improvement.

    Time frame: Weeks 2, 6, 10

  11. Family Assessment Device (FAD)

    The FAD is a 60 item self-report questionnaire designed to assess the six dimensions of the McMaster Model of Family Functioning, as well as overall level of family functioning through the General Functioning Scale. Each question is scored on a "1" to "4" scale, with a higher mean score relating to a worse general functioning.

    Time frame: Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)

  12. Longitudinal Interval Follow-Up Evaluation Range of Impaired Functioning Tool (LIFE-RIFT)

    The LIFE-RIFT interview is a brief semi-structured interview, which measures functional impairment, targeting four domains: work, interpersonal relations, recreation and global satisfaction. Work, recreation and global satisfaction are rated on a "1" (very good/ no impairment) to "5" (very poor/ severe impairment) scale, and interpersonal relations is rated on a "1" (very good) to "7" (variable) scale. The highest score possible is 20 and relates to a more severe impairment. The lowest possible score is 3.

    Time frame: Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)

  13. Quality of Life in Epilepsy-31 (QOLIE-31)

    This is a 31-item self-report scale used in the seizure population to evaluate Quality of Life. The lowest possible score is 0 and the highest possible score is 100, reflecting a better quality of life.

    Time frame: Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)

07

Results

Posted Jan 25, 2011
Limitations and caveats
pilot sample size; drop-outs because of some patient's concern that they would receive the placebo, despite the equipoise that exists for NES treatment(s). Excluding patients who did not have vEEG may present a potential sampling bias.

Participant flow

Patients were referred to the Rhode Island Hospital (RIH) neuropsychiatry/behavioral neurology clinic between July 2002 and June 2008, after being diagnosed with psychogenic nonepileptic seizures (PNES). PNES diagnosis was established by capturing at least one of the patient's typical PNES on video electroencephalogram (vEEG).

Participant flow — Overall Study
MilestoneSertralinePlacebo
Started1919
Completed1214
Not completed75

Outcome measures

PrimaryNumber of Nonepileptic Seizures (NES)

psychogenic nonepileptic seizure (NES) frequency, collected prospectively, using a daily seizure calendar; aggregated into biweekly intervals.

Time frame:
bi-weekly at baseline and weeks 2, 4, 6, 8, 10, 12
Reported as:
Median · seizures
Number of Nonepileptic Seizures (NES)
seizuresSertralinePlacebo
Baseline (retrospective 2 weeks prior)5.0 ± 43.56.0 ± 12.1
Week 2 (prospectively collected from day 1-14)3.0 ± 37.76.0 ± 8.5
Week 42.0 ± 31.55.0 ± 10.6
Week 61.0 ± 31.53.0 ± 16.4
Week 81.0 ± 24.43.0 ± 17.4
Week 102.5 ± 30.77.0 ± 12.4
Week 120.0 ± 20.36.0 ± 14.0
Statistical analysis
  • Sertraline vs Placebo · Overdispersed Poisson Regression · p = 0.29 · Risk ratio, log: 0.673 · 95% CI -0.051 to 1.396
  • Sertraline · Overdispersed Poisson Regression · p = 0.03 · Risk ratio, log: -0.598 · 95% CI -1.139 to -0.073
  • Placebo · Overdispersed Poisson Regression · p = 0.78 · Risk ratio, log: 0.077 · 95% CI -0.431 to 0.571
SecondaryBeck Depression Inventory-II (BDI-II)

The BDI-II assesses depression severity from "0" (no Depression-related symptom) to "3" (severe) on each question. The highest possible score is "51", relating to the worst outcome.

Time frame:
bi-weekly at baseline and weeks 2, 4, 6, 8, 10, 12
Reported as:
Mean · Units on a scale
Beck Depression Inventory-II (BDI-II)
Units on a scaleSertralinePlacebo
Baseline16.7 ± 13.022.1 ± 13.9
Exit11.7 ± 11.517.0 ± 13.3
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondaryModified Hamilton Depression Scale (MHRS)

The MHRS assesses the severity of Depression-related symptoms from "0" (not present) to "2", "3" or "4" (severe) on each question. The highest possible score is "72", relating to the worst outcome.

Time frame:
Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)
Reported as:
Mean · units on a scale
Modified Hamilton Depression Scale (MHRS)
units on a scaleSertralinePlacebo
Baseline17.8 ± 21.016.8 ± 8.8
Exit11.6 ± 9.013.3 ± 8.4
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondaryGlobal Assessment of Functioning (GAF)

This GAF rating scale ranges from 0 (worst) to 100 (best) and is used for evaluating the overall functioning of a subject during a specified time period on a continuum from psychological or psychiatric sickness to health.

Time frame:
Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)
Reported as:
Mean · Units on a scale
Global Assessment of Functioning (GAF)
Units on a scaleSertralinePlacebo
Baseline53.3 ± 10.349.1 ± 7.1
Exit56.8 ± 11.052.0 ± 7.9
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondaryDavidson Trauma Scale (DTS)

The DTS is a 17-item self-report scale measuring each Diagnostic and Stastical Manual of Mental Disorders-4th Edition (DSM-IV) symptom of post-traumatic stress disorder (PTSD) on 5-point frequency (0-not at all to 4-everyday) and severity (0-not at all distressing to 4-extremely distressing) scales. The highest possible score is 136 and relates to the worst outcome.

Time frame:
Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)
Reported as:
Mean · units on a scale
Davidson Trauma Scale (DTS)
units on a scaleSertralinePlacebo
Baseline52.5 ± 31.648.1 ± 40.0
Exit40.3 ± 36.943.4 ± 40.0
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondaryBarratt Impulsivity Scale (BIS)

The BIS is a 30 item self-report measure that characterizes four aspects of impulsiveness, and ranges from "rarely/ never" to "almost always" with a score of "1" to "4" possible on each question, giving a maximum possible score of 120 and minimum possible score of 30. Selected questions are reversed scored. Higher scores relate to a worse outcome.

Time frame:
Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)
Reported as:
Mean · Units on a scale
Barratt Impulsivity Scale (BIS)
Units on a scaleSertralinePlacebo
Baseline57.8 ± 16.572.6 ± 17.8
Exit64.9 ± 13.266.2 ± 15.9
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondaryDissociative Experiences Scale (DES)

The DES is a 28 item self-report questionnaire designed to quantify dissociative experiences which identifies disturbances in memory, identity, cognition, derealization, depersonalization, absorption and imagination. A visual analogue scale is used ranging from 0% ("This never happens to you") to 100% ("This always happens to you"). The score is divided by 28 items to yield a range of 0 to 100%, with a higher score relating to a higher degree of dissociation.

Time frame:
Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)
Reported as:
Mean · units on a scale
Dissociative Experiences Scale (DES)
units on a scaleSertralinePlacebo
Baseline21.0 ± 19.717.4 ± 11.0
Exit8.5 ± 13.212.1 ± 12.2
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondarySymptom Checklist 90 (SCL-90)

The SCL-90 is a 90 item self-report clinical rating scale oriented toward symptomatic behavior of outpatients, assessing from "0" (not at all bothered) to "4" (extremely bothered). The highest possible overall score is 360 and relates to a worse outcome.

Time frame:
Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)
Reported as:
Mean · Units on a scale
Symptom Checklist 90 (SCL-90)
Units on a scaleSertralinePlacebo
Baseline84.9 ± 73.3109.4 ± 70.9
Exit78.9 ± 67.291.4 ± 77.2
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondaryOxford Handicap Scale (OHS)

The OHS is a brief clinician scored assessment of symptoms and lifestyle interference and the 6 grades of disability are based on the modified Rankin Scale, ranging from "0" (no symptoms) to "5" (severe handicap). A higher score relates to a worse outcome.

Time frame:
Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)
Reported as:
Mean · Units on a scale
Oxford Handicap Scale (OHS)
Units on a scaleSertralinePlacebo
Baseline3.1 ± 0.83.4 ± 0.7
Exit2.3 ± 1.32.6 ± 1.2
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondaryClinical Global Impressions - Severity (CGI-S)

The CGI-S is the first item of a two-item global rating scale, where each item is on a 7 point scale ranging from normal ("1") to among the most extremely ill patients ("7"). A higher score relates to a higher severity of illness.

Time frame:
Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)
Reported as:
Mean · Units on a scale
Clinical Global Impressions - Severity (CGI-S)
Units on a scaleSertralinePlacebo
Baseline4.9 ± 0.85.1 ± 0.6
Exit3.3 ± 1.63.9 ± 0.9
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondaryClinical Global Impressions - Improvement (CGI-I)

The CGI-I is the second item of a two item global rating scale, where each item is on a 7 point scale ranging from very much improved ("1") to very much worse ("7"). A lower score represents a higher improvement.

Time frame:
Weeks 2, 6, 10
Reported as:
Mean · Units on a scale
Clinical Global Impressions - Improvement (CGI-I)
Units on a scaleSertralinePlacebo
Clinical Global Impressions - Improvement (CGI-I)2.9 ± 1.43.5 ± 1.6
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondaryFamily Assessment Device (FAD)

The FAD is a 60 item self-report questionnaire designed to assess the six dimensions of the McMaster Model of Family Functioning, as well as overall level of family functioning through the General Functioning Scale. Each question is scored on a "1" to "4" scale, with a higher mean score relating to a worse general functioning.

Time frame:
Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)
Reported as:
Mean · General Functioning Subscale Score
Family Assessment Device (FAD)
General Functioning Subscale ScoreSertralinePlacebo
Baseline2.0 ± 0.72.0 ± 0.5
Exit2.0 ± 0.62.2 ± 0.5
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondaryLongitudinal Interval Follow-Up Evaluation Range of Impaired Functioning Tool (LIFE-RIFT)

The LIFE-RIFT interview is a brief semi-structured interview, which measures functional impairment, targeting four domains: work, interpersonal relations, recreation and global satisfaction. Work, recreation and global satisfaction are rated on a "1" (very good/ no impairment) to "5" (very poor/ severe impairment) scale, and interpersonal relations is rated on a "1" (very good) to "7" (variable) scale. The highest score possible is 20 and relates to a more severe impairment. The lowest possible score is 3.

Time frame:
Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)
Reported as:
Mean · Units on a scale
Longitudinal Interval Follow-Up Evaluation Range of Impaired Functioning Tool (LIFE-RIFT)
Units on a scaleSertralinePlacebo
Baseline11.8 ± 3.613.9 ± 3.8
Exit11.8 ± 4.813.8 ± 3.3
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05
SecondaryQuality of Life in Epilepsy-31 (QOLIE-31)

This is a 31-item self-report scale used in the seizure population to evaluate Quality of Life. The lowest possible score is 0 and the highest possible score is 100, reflecting a better quality of life.

Time frame:
Baseline and weeks 2, 6, 10 (total time frame of 12 weeks)
Reported as:
Mean · Units on a scale
Quality of Life in Epilepsy-31 (QOLIE-31)
Units on a scaleSertralinePlacebo
Baseline48.4 ± 20.738.2 ± 19.0
Exit56.7 ± 25.146.9 ± 24.0
Statistical analysis
  • Sertraline vs Placebo · ANCOVA · p = >0.05

Adverse events

Collected over 12 weeks. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Sertraline—0/19 (0%)1/19 (5.3%)
Placebo—0/19 (0%)4/19 (21.1%)
Most frequent other events
Most frequent other events
EventSertralinePlacebo
tiredness/ sleepinessNervous system disorders1/194/19

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)SertralinePlaceboTotal
<=18 years000
Between 18 and 65 years191938
>=65 years000
Age, Continuous
Age, Continuous(years)SertralinePlaceboTotal
Mean38 ± 13.934.4 ± 12.636.2 ± 13.2
Sex: Female, Male
Sex: Female, Male(Participants)SertralinePlaceboTotal
Female161329
Male369
Region of Enrollment
Region of Enrollment(participants)SertralinePlaceboTotal
United States191938
08

Study locations

1 site
  • Rhode Island Hospital
    Providence, Rhode Island 02903, United States
09

References and documents

Publications

  • LaFrance WC Jr, Devinsky O. The treatment of nonepileptic seizures: historical perspectives and future directions. Epilepsia. 2004;45 Suppl 2:15-21. doi: 10.1111/j.0013-9580.2004.452002.x. PubMed 15186340 ↗
  • LaFrance WC. How many patients with psychogenic nonepileptic seizures also have epilepsy? Neurology. 2002 Mar 26;58(6):990; author reply 990-1. doi: 10.1212/wnl.58.6.990. No abstract available. PubMed 11914432 ↗
  • LaFrance WC Jr, Alper K, Babcock D, Barry JJ, Benbadis S, Caplan R, Gates J, Jacobs M, Kanner A, Martin R, Rundhaugen L, Stewart R, Vert C; NES Treatment Workshop participants. Nonepileptic seizures treatment workshop summary. Epilepsy Behav. 2006 May;8(3):451-61. doi: 10.1016/j.yebeh.2006.02.004. Epub 2006 Mar 15. PubMed 16540377 ↗
  • LaFrance WC Jr, Barry JJ. Update on treatments of psychological nonepileptic seizures. Epilepsy Behav. 2005 Nov;7(3):364-74. doi: 10.1016/j.yebeh.2005.07.010. Epub 2005 Sep 16. PubMed 16150653 ↗
  • LaFrance WC Jr, Rusch MD, Machan JT. What is "treatment as usual" for nonepileptic seizures? Epilepsy Behav. 2008 Apr;12(3):388-94. doi: 10.1016/j.yebeh.2007.12.017. Epub 2008 Feb 20. PubMed 18282812 ↗
  • LaFrance WC Jr. Psychogenic nonepileptic seizures. Curr Opin Neurol. 2008 Apr;21(2):195-201. doi: 10.1097/WCO.0b013e3282f7008f. PubMed 18317280 ↗
  • LaFrance WC Jr, Devinsky O. Treatment of nonepileptic seizures. Epilepsy Behav. 2002 Oct;3(5 Suppl):19-23. doi: 10.1016/s1525-5069(02)00505-4. PubMed 12609316 ↗
  • LaFrance WC Jr, Benbadis SR. Avoiding the costs of unrecognized psychological nonepileptic seizures. Neurology. 2006 Jun 13;66(11):1620-1. doi: 10.1212/01.wnl.0000224953.94807.be. No abstract available. PubMed 16769930 ↗
  • LaFrance WC Jr, Blum AS, Miller IW, Ryan CE, Keitner GI. Methodological issues in conducting treatment trials for psychological nonepileptic seizures. J Neuropsychiatry Clin Neurosci. 2007 Fall;19(4):391-8. doi: 10.1176/jnp.2007.19.4.391. PubMed 18070841 ↗
  • LaFrance WC Jr, Syc S. Depression and symptoms affect quality of life in psychogenic nonepileptic seizures. Neurology. 2009 Aug 4;73(5):366-71. doi: 10.1212/WNL.0b013e3181b04c83. PubMed 19652140 ↗
  • LaFrance WC Jr, Keitner GI, Papandonatos GD, Blum AS, Machan JT, Ryan CE, Miller IW. Pilot pharmacologic randomized controlled trial for psychogenic nonepileptic seizures. Neurology. 2010 Sep 28;75(13):1166-73. doi: 10.1212/WNL.0b013e3181f4d5a9. Epub 2010 Aug 25. PubMed 20739647 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 20, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00159965
Lead sponsor
Rhode Island Hospital
Collaborators
National Institute of Neurological Disorders and Stroke (NINDS)
Responsible party
W. Curt LaFrance Jr., M.D. (PI, Rhode Island Hospital) — Principal investigator
First posted
Sep 12, 2005
Start date
Dec 2003
Primary completion
Jun 2008
Completion
Jun 2009
Results posted
Jan 25, 2011
Last update
Nov 20, 2014

Study contacts

W. Curt LaFrance, Jr., MD, MPH
principal investigator · Rhode Island Hospital/Brown Medical School

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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