Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
The goal of the proposed study is to evaluate the efficacy and safety of silymarin (milk thistle) in children and adults with trichotillomania. The hypothesis to be tested is that silymarin will be more effective and well tolerated in children and adults with trichotillomania compared to placebo. The proposed study will provide needed data on the treatment of a disabling disorder that currently lacks a clearly effective treatment.
Pathological hair-pulling, trichotillomania, has been defined as repetitive, intentionally performed pulling that causes noticeable hair loss and results in clinically significant distress or functional impairment. Trichotillomania appears relatively common with an estimated prevalence between 1-3%. Data on the pharmacological treatment of trichotillomania is limited to case reports and conflicting double-blind studies of serotonin reuptake inhibitors. One positive double-blind study of N-acetyl cysteine in adults was not successful when examined for children and adolescents. Available data on the treatment of trichotillomania in children are therefore limited.
Silymarin, a flavonoid and a member of the Asteraceae family, is extracted from the seeds of milk thistle (Silybum marianum) and is known to have antioxidative and anti-apoptotic properties. Furthermore, it has been demonstrated that its anti-oxidative activity is related to the scavenging of free radicals and activation of anti-oxidative defenses: increases in cellular glutathione content and superoxide dismutase activity. Milk thistle has been used for a range of psychiatric disorders including methamphetamine abuse and obsessive compulsive disorder. The flavonoid complex silymarin in preclinical studies has been found to increase serotonin and dopamine levels in the cortex. In the frontal cortex one of the functions of dopamine is to increase the signal to noise ratio, increased dopamine correlating with increased frontal performance. Studies have shown that the higher cortical dopamine levels are associated with improved frontal cortical cognitive performance. Cortical inhibition is felt to be the basis for top-down control of motivated behaviors. A recent randomized controlled study with milk thistle was conducted in Iran Thirty five participants with moderate OCD were randomly assigned to 200 mg of milk thistle leaf extract or 10 mg of fluoxetine three times daily for eight weeks. Results revealed no significant difference in treatment effects between milk thistle and fluoxetine from baseline to endpoint as both interventions provided a highly significant reduction in symptoms. Silymarin or Milk Thistle may therefore offer promise for the treatment of individuals with trichotillomania.
The current pilot study examines the tolerability and efficacy of milk thistle in the treatment of trichotillomania in children and adults. The investigators hypothesize that milk thistle will reduce the severity of symptoms related to trichotillomania and improve patients' overall functioning.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Milk Thistle | Experimental | Each subject will have a 6 week treatment phase with milk thistle. |
|
| Placebo | Placebo Comparator | 6 week placebo phase before or after milk thistle phase depending on randomization. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Milk Thistle | Drug |
|
| |
| Placebo |
| Measure | Description | Time Frame |
|---|---|---|
| Change in NIMH Trichotillomania Severity Scale (NIMH-TSS) Scores | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the NIMH-Trichotillomania Symptom Severity Scale (NIMH-TSS). The change in scores from baseline to after 13 weeks will be assessed. The NIMH-TSS consists of 5 questions related to the following aspects of TTM: average time spent pulling, time spent pulling on the previous day, resistance to urges, resulting distress and daily interference. NIMH-TSS scores range from 0 to 25, with higher scores indicating higher severity. | Baseline and 13 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Massachusetts General Hospital Hair Pulling Scale (MGH-HPS) | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the MGH-Hair Pulling Scale (MGH-HPS). At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. The MGH-HPS is a self report scale that assesses severity of Trichotillomania in the past week. There are seven total items each rated for severity from 0 to 4. Higher scores indicate higher symptom severity. |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Jon E Grant, JD, MD, MPH | University of Chicago | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Chicago | Chicago | Illinois | 60637 | United States |
This is a crossover study. Therefore, only 22 participants were technically enrolled, but they each were supposed to complete both the placebo and the Milk Thistle Arm.
Not provided
Not provided
| ID | Title | Description |
|---|---|---|
| FG000 | Experimental: Milk Thistle, Then Placebo | Participants first received Milk Thistle for 6 weeks. After a washout period of 1 week, they then received matching Placebo for 6 weeks. |
| FG001 | Experimetal: Placebo, Then Milk Thistle | Participants first received matching Placebo for 6 weeks. After a washout period of 1 week, they then received matching Milk Thistle for 6 weeks. |
| Title | Milestones | Reasons Not Completed | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
|
Not provided
Not provided
| ID | Title | Description |
|---|---|---|
| BG000 | Milk Thistle, Then Placebo | Participants first received Milk Thistle for 6 weeks. After a washout period of 1 week, they then received matching placebo for 6 weeks. |
| BG001 | Placebo, Then Milk Thistle |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Categorical | Count of Participants |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Change in NIMH Trichotillomania Severity Scale (NIMH-TSS) Scores | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the NIMH-Trichotillomania Symptom Severity Scale (NIMH-TSS). The change in scores from baseline to after 13 weeks will be assessed. The NIMH-TSS consists of 5 questions related to the following aspects of TTM: average time spent pulling, time spent pulling on the previous day, resistance to urges, resulting distress and daily interference. NIMH-TSS scores range from 0 to 25, with higher scores indicating higher severity. | Posted | Mean | Standard Deviation | score on a scale | Baseline and 13 weeks |
|
Adverse event data were collected at each study visit (Visits 1-8) over the subjects' study participation (13 weeks) and over the total course of the study (3 years).
Not provided
Not provided
| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Milk Thistle | Each subject will have a 6 week treatment phase with milk thistle. Milk Thistle |
Not provided
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Nausea | Gastrointestinal disorders | Systematic Assessment |
Not provided
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Stephanie Valle | University of Chicago | 773-834-3778 | svalle@yoda.bsd.uchicago.edu |
Not provided
| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP | Yes | Yes | No | Study Protocol and Statistical Analysis Plan | Apr 19, 2017 | May 17, 2019 | Prot_SAP_000.pdf |
| ICF | No | No | Yes | Informed Consent Form | Feb 20, 2018 | May 17, 2019 | ICF_001.pdf |
Not provided
| ID | Term |
|---|---|
| D014256 | Trichotillomania |
| ID | Term |
|---|---|
| D009771 | Obsessive-Compulsive Disorder |
| D001008 | Anxiety Disorders |
| D001523 | Mental Disorders |
| D007174 | Disruptive, Impulse Control, and Conduct Disorders |
Not provided
Not provided
| ID | Term |
|---|---|
| C000713827 | milk-thistle extract |
| D012838 | Silymarin |
| D000073893 | Sugars |
| ID | Term |
|---|---|
| D044947 | Flavonolignans |
| D005419 | Flavonoids |
| D002867 | Chromones |
| D001578 | Benzopyrans |
| D011714 |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Drug |
|
|
| Up to 13 weeks |
| Clinical Global Impression- Severity and Improvement (CGI) | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the CGI. At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. The CGI-Severity is rated on a 7-point scale, with the severity of illness ranging from 1 (normal) through 7 (among the most severely ill patients). CGI-Change scores range from 1 (very much improved) through 7 (very much worse). | Up to 13 weeks |
| Sheehan Disability Scale (SDS) | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the Sheehan Disability Scale (SDS). At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. The scale itself assesses the level of functional impairment from trichotillomania (or target disorder). The subject is asked to rank the extent to which work/school, family life/home responsibilities, or social life are impaired by their symptoms on a scale from 0 (not at all) to 10 (extremely). The three numerical ratings can then be summed to produce a single measure of global functional impairment from 0 (unimpaired) to 30 (highly impaired). | Up to 13 weeks |
| Hamilton Anxiety Rating Scale (HAM-A) | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the Hamilton Anxiety Rating Scale (HAM-A), a 14 item scale. At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. Each item is scored on a scale of 0 (not present) to 4 (severe), with a total score range of 0-56, where <17 indicates mild severity, 18-24 mild to moderate severity and 25-30 moderate to severe. | Up to 13 weeks |
| Hamilton Depression Rating Scale (HAM-D) | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the Hamilton Depression Rating Scale (HAM-D). At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. Classification of symptoms are scored as follows: 0 - absent: 1 - doubtful or trivial: 2 - present. Classification of symptoms where more detail can be obtained can be expanded to: 0 - absent; 1 - mild; 2 - moderate; 3 - severe; 4 - incapacitating. In general the higher the total score the more severe the depression. HAM-D score level of depression: 10 - 13 mild; 14-17 mild to moderate; >17 moderate to severe. | Up to 13 weeks |
| Trichotillomania Scale for Children/Parent (TSC-C & TSC-P) | The entire study for the subject will last 13 weeks. The subject will take the TSC-C (child version).The parent of the subject will fill out the TSC-P (parent version). At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. The scale itself assesses severity of trichotillomania and provides a sub score for severity. The severity score is produced by adding up the scores for questions 1 through 5 and dividing that sum by 5. The second sub score is on distress/impairment with questions such as "in the past week, how often did you feel like pulling your hair?". The sub score for distress/impairment is produced by adding the scores for questions 6-12 and dividing that sum by 7. The sum of both sub scores provides a total score. Total scores (ranging between 0 and 4) were compared pre treatment and post treatment. Higher scores indicate a higher severity and distress impairment score. | Up to 13 weeks |
Participants first received matching placebo for 6 weeks. After a washout period of 1 week, they then received Milk Thistle for 6 weeks.
| BG002 | Total | Total of all reporting groups |
| Participants |
|
| Age, Continuous | Mean | Standard Deviation | years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| Ethnicity (NIH/OMB) | Count of Participants | Participants |
|
| Race (NIH/OMB) | Count of Participants | Participants |
|
| Region of Enrollment | Number | participants |
|
| Placebo |
6 week placebo phase before or after milk thistle phase depending on randomization. Placebo |
|
|
| Secondary | Massachusetts General Hospital Hair Pulling Scale (MGH-HPS) | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the MGH-Hair Pulling Scale (MGH-HPS). At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. The MGH-HPS is a self report scale that assesses severity of Trichotillomania in the past week. There are seven total items each rated for severity from 0 to 4. Higher scores indicate higher symptom severity. | Posted | Mean | Standard Deviation | score on a scale | Up to 13 weeks |
|
|
|
| Secondary | Clinical Global Impression- Severity and Improvement (CGI) | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the CGI. At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. The CGI-Severity is rated on a 7-point scale, with the severity of illness ranging from 1 (normal) through 7 (among the most severely ill patients). CGI-Change scores range from 1 (very much improved) through 7 (very much worse). | Posted | Mean | Standard Deviation | score on a scale | Up to 13 weeks |
|
|
|
| Secondary | Sheehan Disability Scale (SDS) | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the Sheehan Disability Scale (SDS). At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. The scale itself assesses the level of functional impairment from trichotillomania (or target disorder). The subject is asked to rank the extent to which work/school, family life/home responsibilities, or social life are impaired by their symptoms on a scale from 0 (not at all) to 10 (extremely). The three numerical ratings can then be summed to produce a single measure of global functional impairment from 0 (unimpaired) to 30 (highly impaired). | Posted | Mean | Standard Deviation | score on a scale | Up to 13 weeks |
|
|
|
| Secondary | Hamilton Anxiety Rating Scale (HAM-A) | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the Hamilton Anxiety Rating Scale (HAM-A), a 14 item scale. At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. Each item is scored on a scale of 0 (not present) to 4 (severe), with a total score range of 0-56, where <17 indicates mild severity, 18-24 mild to moderate severity and 25-30 moderate to severe. | Posted | Mean | Standard Deviation | score on a scale | Up to 13 weeks |
|
|
|
| Secondary | Hamilton Depression Rating Scale (HAM-D) | The entire study for the subject will last 13 weeks. Every two weeks and after the one week washout period the subject will take the Hamilton Depression Rating Scale (HAM-D). At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. Classification of symptoms are scored as follows: 0 - absent: 1 - doubtful or trivial: 2 - present. Classification of symptoms where more detail can be obtained can be expanded to: 0 - absent; 1 - mild; 2 - moderate; 3 - severe; 4 - incapacitating. In general the higher the total score the more severe the depression. HAM-D score level of depression: 10 - 13 mild; 14-17 mild to moderate; >17 moderate to severe. | Posted | Mean | Standard Deviation | score on a scale | Up to 13 weeks |
|
|
|
| Secondary | Trichotillomania Scale for Children/Parent (TSC-C & TSC-P) | The entire study for the subject will last 13 weeks. The subject will take the TSC-C (child version).The parent of the subject will fill out the TSC-P (parent version). At each of these visits the outcome will be assessed. Pre treatment and after the one week washout period scores reported. The scale itself assesses severity of trichotillomania and provides a sub score for severity. The severity score is produced by adding up the scores for questions 1 through 5 and dividing that sum by 5. The second sub score is on distress/impairment with questions such as "in the past week, how often did you feel like pulling your hair?". The sub score for distress/impairment is produced by adding the scores for questions 6-12 and dividing that sum by 7. The sum of both sub scores provides a total score. Total scores (ranging between 0 and 4) were compared pre treatment and post treatment. Higher scores indicate a higher severity and distress impairment score. | For some subjects, the scale was not filled out at follow-up visits (in error). | Posted | Mean | Standard Deviation | score on a scale | Up to 13 weeks |
|
|
|
| 0 |
| 18 |
| 0 |
| 18 |
| 6 |
| 18 |
| EG001 | Placebo | 6 week placebo phase before or after milk thistle phase depending on randomization. Placebo | 0 | 21 | 0 | 21 | 7 | 21 |
| Bloating | Gastrointestinal disorders | Systematic Assessment |
|
| Abdominal Pain | Gastrointestinal disorders | Systematic Assessment |
|
| Dry Mouth | General disorders | Systematic Assessment |
|
| Flatulence | Gastrointestinal disorders | Systematic Assessment |
|
| Headaches | Nervous system disorders | Systematic Assessment |
|
| Insomnia | Nervous system disorders | Systematic Assessment |
|
Not provided
Not provided
| Pyrans |
| D006573 | Heterocyclic Compounds, 1-Ring |
| D006571 | Heterocyclic Compounds |
| D006574 | Heterocyclic Compounds, 2-Ring |
| D000072471 | Heterocyclic Compounds, Fused-Ring |
| D002241 | Carbohydrates |
| Post-Treatment (TSC-C) |
|
|
| Pre-Treatment (TSC-P) |
|
|
| Post-Treatment (TSC-P) |
|
|