Page last updated: 2024-10-30

mecamylamine and Refractory Depression

mecamylamine has been researched along with Refractory Depression in 1 studies

Mecamylamine: A nicotinic antagonist that is well absorbed from the gastrointestinal tract and crosses the blood-brain barrier. Mecamylamine has been used as a ganglionic blocker in treating hypertension, but, like most ganglionic blockers, is more often used now as a research tool.

Research

Studies (1)

TimeframeStudies, this research(%)All Research%
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's0 (0.00)29.6817
2010's1 (100.00)24.3611
2020's0 (0.00)2.80

Authors

AuthorsStudies
Möller, HJ1
Demyttenaere, K1
Olausson, B1
Szamosi, J1
Wilson, E1
Hosford, D1
Dunbar, G1
Tummala, R1
Eriksson, H1

Clinical Trials (2)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
A Multicenter, Randomized, Double-Blind Parallel Group Placebo-Controlled Phase III, Efficacy and Safety Study of 3 Fixed Dose Groups of TC-5214 (S-mecamylamine) as an Adjunct to an Antidepressants in Patients With Major Depressive Disorder Who Exhibit an[NCT01197508]Phase 3696 participants (Actual)Interventional2010-09-30Completed
A Multicenter, Randomized, Double-Blind Parallel Group Placebo-Controlled Phase III,Efficacy and Safety Study of 3 Fixed Dose Groups of TC-5214 (S-mecamylamine) as an Adjunct to an Antidepressant in Patients With Major Depressive Disorder Who Exhibit an I[NCT01153347]Phase 32,409 participants (Actual)Interventional2010-06-30Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

"Response in the Clinical Global Impression-Improvement (CGI-I) Defined as CGI-I Rating of Very Much Improved or Much Improved From Randomization (Week 8) to End of Treatment (Week 16)"

A 3-part, clinician-administered scale that rates the improvement or worsening of the patient's illness from randomization (baseline). Each item is scored on a 1 to 7 scale. CGI-I scores >4 indicate worsening, while scores <4 indicate improvement. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionpercentage of participants analyzed (Number)
0.1 mg BID TC-521459.5
1 mg BID TC-521462.1
4 mg BID TC-521458.8
Placebo67.8

Change From Randomization (Week 8) to End of Treatment (Week 16) in Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form (Q LES-Q-SF) Item 15

The Q-LES-Q-SF (Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form) measures the patient's satisfaction with medication and overall quality of life. The 15th item queries respondents' satisfaction with the medication they are taking. Higher scores are indicative of greater enjoyment or satisfaction in each domain. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-52140.6
1 mg BID TC-52140.7
4 mg BID TC-52140.5
Placebo0.7

Change From Randomization (Week 8) to End of Treatment (Week 16) in Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form (Q LES-Q-SF) Item 16

The Q-LES-Q-SF (Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form) measures the patient's satisfaction with medication and overall quality of life. The 16th item is a global rating of overall life satisfaction and contentment. Higher scores are indicative of greater enjoyment or satisfaction in each domain. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-52140.7
1 mg BID TC-52140.7
4 mg BID TC-52140.6
Placebo0.8

Change in Depressive Symptoms From Randomization (Week 8) to End of Treatment (Week 16) as Measured by Hamilton Rating Scale for Depression-17 Items (HAMD-17) Total Score

A 17-item, clinician-rated scale that assesses depressive symptoms. The HAMD-17 consists of 17 symptoms, each of which is rated from 0 to 2 or 0 to 4, where 0 is none/absent. The HAMD-17 total score is calculated as the sum of the 17 individual symptom scores; the total score can range from 0 to 52. Higher HAMD-17 scores indicate more severe depression. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-10.07
1 mg BID TC-5214-10.21
4 mg BID TC-5214-9.07
Placebo-11.16

Change in Functional Impairment From Randomization (Week 8) to End of Treatment (Week 16) as Measured by SDS Family Life/Home Responsibilities Domain Score

A 5-item, self-administered scale that measures the extent a patient is impaired by their disease. Higher scores indicate more severe impairment. The 3 inter-correlated domains are school/work, social life, and family life/home responsibilities. The numerical rating for the SDS family life/home responsibilities domain score is 0- 10, where 10 is considered to be 'highly impaired'. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-2.0
1 mg BID TC-5214-2.1
4 mg BID TC-5214-2.0
Placebo-2.3

Change in Functional Impairment From Randomization (Week 8) to End of Treatment (Week 16) as Measured by SDS Social Life Domain Score

A 5-item, self-administered scale that measures the extent a patient is impaired by their disease. Higher scores indicate more severe impairment. The 3 inter-correlated domains are school/work, social life, and family life/home responsibilities. The numerical rating for the SDS social life domain score is 0- 10, where 10 is considered to be 'highly impaired'. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-2.1
1 mg BID TC-5214-2.2
4 mg BID TC-5214-2.2
Placebo-2.4

Change in Functional Impairment From Randomization (Week 8) to End of Treatment (Week 16) as Measured by SDS Work/School Domain Score

A 5-item, self-administered scale that measures the extent a patient is impaired by their disease. Higher scores indicate more severe impairment. The 3 inter-correlated domains are school/work, social life, and family life/home responsibilities. The numerical rating for the work/school domain score is 0- 10, where 10 is considered to be 'highly impaired'. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-2.0
1 mg BID TC-5214-1.8
4 mg BID TC-5214-1.9
Placebo-2.1

Change in Functional Impairment From Randomization (Week 8) to End of Treatment (Week 16) as Measured by the Sheehan Disability Scale (SDS) Total Score

Sheehan Disability Scale (SDS) is 5-item, self-administered scale that measures the extent a patient is impaired by their disease. Higher scores indicate more severe impairment. The SDS total score is calculated as the sum of the score for the 3 inter-correlated domains (school/work, social life, and family life/home responsibilities) and ranges from 0 (unimpaired) to 30 (highly impaired). (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-6.08
1 mg BID TC-5214-6.34
4 mg BID TC-5214-6.21
Placebo-7.06

Change in Hamilton Anxiety Scale (HAM-A) Total Score From Randomization (Week 8) to End of Treatment (Week 16)

A 14-item clinician-administered scale for the evaluation of anxiety symptoms. Each HAM-A item is rated on a 0 to 4 scale. Higher HAM-A scores indicate higher levels of anxiety. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-8.5
1 mg BID TC-5214-8.6
4 mg BID TC-5214-8.1
Placebo-9.3

Change in MADRS Total Score From Randomization (Week 8) to Week 10

A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms. (NCT01197508)
Timeframe: Randomization (Week 8) to Week 10

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-4.8
1 mg BID TC-5214-5.9
4 mg BID TC-5214-5.0
Placebo-6.0

Change in MADRS Total Score From Randomization (Week 8) to Week 12

A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms. (NCT01197508)
Timeframe: Randomization (Week 8) to Week 12

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-8.1
1 mg BID TC-5214-8.5
4 mg BID TC-5214-7.8
Placebo-8.7

Change in MADRS Total Score From Randomization (Week 8) to Week 14

A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms. (NCT01197508)
Timeframe: Randomization (Week 8) to Week 14

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-9.5
1 mg BID TC-5214-10.6
4 mg BID TC-5214-9.6
Placebo-11.0

Change in MADRS Total Score From Randomization (Week 8) to Week 9

A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms. (NCT01197508)
Timeframe: Randomization (Week 8) to Week 9

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-3.0
1 mg BID TC-5214-3.0
4 mg BID TC-5214-2.6
Placebo-3.2

Change in Overall Quality of Life and Satisfaction From Randomization (Week 8) to End of Treatment (Week 16) by Assessing the Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form (Q-LES-Q-SF) % Maximum Total Score

The Q-LES-Q-SF (Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form) total score is derived by summing item scores 1 to 14. Higher scores are indicative of greater enjoyment or satisfaction in each domain. The Q-LES-Q-SF % maximum total score is calculated as 100% × (Q-LES-Q-SF total score - 14) / 56, and can range from 0% to 100%. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-521413.08
1 mg BID TC-521413.24
4 mg BID TC-521411.84
Placebo14.55

Change in the Clinician-rated Global Outcome of Severity as Measured by the Clinical Global Impression-Severity (CGI-S) Score From Randomization (Week 8) to End of Treatment (Week 16)

A 3-part, clinician-administered scale that rates the improvement or worsening of the patient's illness from randomization (baseline). Each item is scored on a 1 to 7 scale. Higher CGI-S scores indicate greater illness severity. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-1.5
1 mg BID TC-5214-1.6
4 mg BID TC-5214-1.7
Placebo-1.7

Change in the Montgomery-Asberg Depression Rating Scale (MADRS) Total Score From Randomization to End of Treatment.

A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.1 mg BID TC-5214-11.6
1 mg BID TC-5214-12.2
4 mg BID TC-5214-12.2
Placebo-12.7

Early and Sustained Response, Defined as a ≥50% Reduction From Randomization (Week 8) in MADRS Total Score and a MADRS Total Score of ≤12 at Week 10, Week 12, Week 14, and End of Treatment (Week 16)

"The percentage of patients with a ≥50% reduction from randomization (Week 8) in MADRS total score and a MADRS total score of ≤12 at Week 10, Week 12, Week 14, and end of treatment (Week 16) was calculated.~MADRS is 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms." (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16); Week 10, Week 12, Week 14, and Week 16

Interventionpercentage of participants analyzed (Number)
0.1 mg BID TC-52147.5
1 mg BID TC-52148.1
4 mg BID TC-52149.6
Placebo9.2

Remission in Depressive Symptoms of MDD, Defined as MADRS Total Score of ≤8 at End of Treatment (Week 16)

"The percentage of patients with a MADRS total score of ≤8 at end of treatment (Week 16) was calculated.~MADRS is 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms." (NCT01197508)
Timeframe: Week 16

Interventionpercentage of participants analyzed (Number)
0.1 mg BID TC-521437.0
1 mg BID TC-521435.1
4 mg BID TC-521430.0
Placebo39.1

Response in Depressive Symptoms of Major Depressive Disorder (MDD), Defined as a ≥50% Reduction From Randomization (Week 8) in MADRS Total Score at End of Treatment (Week 16)

"The percentage of patients with a ≥50% reduction from randomization (Week 8) in MADRS total score at end of treatment (Week 16) was calculated.~MADRS is 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms." (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionpercentage of participants analyzed (Number)
0.1 mg BID TC-521448.6
1 mg BID TC-521451.1
4 mg BID TC-521441.2
Placebo54.0

Sustained Remission, Defined as a MADRS Total Score of ≤8 at Week 12, Week 14, and End of Treatment (Week 16)

"The percentage of patients with a MADRS total score of ≤8 at Week 12, Week 14, and end of treatment (Week 16)was calculated.~MADRS is 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms." (NCT01197508)
Timeframe: Week 12, Week 14, Week 16

Interventionpercentage of participants analyzed (Number)
0.1 mg BID TC-521410.6
1 mg BID TC-521410.5
4 mg BID TC-52148.0
Placebo12.1

Sustained Response, Defined as a ≥50% Reduction From Randomization (Week 8) in MADRS Total Score and a MADRS Total Score of ≤12 at Week 12, Week 14, and End of Treatment (Week 16)

"The percentage of patients with a ≥50% reduction from randomization (Week 8) in MADRS total score and a MADRS total score of ≤12 at Week 12, Week 14, and end of treatment (Week 16) was calculated.~MADRS is 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms." (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16); Week 12, Week 14, and Week 16

Interventionpercentage of patients analyzed (Number)
0.1 mg BID TC-521414.7
1 mg BID TC-521419.3
4 mg BID TC-521415.3
Placebo23.7

Change in EuroQol - 5 Dimensions (EQ-5D) From Randomization (Week 8) to End of Treatment (Week 16)

A self-assessment questionnaire that provides 2 measures of health status. The EQ-5D index score is a weighted linear combination over 5 dimensions of health status. The score for each of the 5 dimensions can range from 1 to 3, and an equation is used to calculate the EQ-5D index score. The EQ-5D index score can range from possible negative values to a maximum of 1.0. The EQ-VAS is a visual analog scale with a range of 0 to 100. For both variables, a higher score indicates a better health state. (NCT01197508)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

,,,
Interventionunits on a scale (Least Squares Mean)
EQ-5D index scoreEQ-5D VAS score
0.1 mg BID TC-52140.12816.4
1 mg BID TC-52140.13917.0
4 mg BID TC-52140.13315.9
Placebo0.13918.7

"Response in the Clinical Global Impression-Improvement (CGI-I) Defined as CGI-I Rating of Very Much Improved or Much Improved From Randomization (Week 8) to End of Treatment (Week 16)"

A 3-part, clinician-administered scale that rates the improvement or worsening of the patient's illness from randomization (baseline). Each item is scored on a 1 to 7 scale. CGI-I scores >4 indicate worsening, while scores <4 indicate improvement. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionpercentage of participants analyzed (Number)
0.5 mg BID TC-521448.4
2 mg BID TC-521449.4
4 mg BID TC-521437.5
Placebo47.8

Change From Randomization (Week 8) to End of Treatment (Week 16) in Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form (Q LES-Q-SF) Item 16

The Q-LES-Q-SF (Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form) measures the patient's satisfaction with medication and overall quality of life. The 16th item is a global rating of overall life satisfaction and contentment, rated on a 1 to 5 scale. Higher scores are indicative of greater satisfaction. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-52140.6
2 mg BID TC-52140.5
4 mg BID TC-52140.4
Placebo0.5

Change From Randomization (Week 8) to End of Treatment (Week 16) in Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form(Q LES-Q-SF)Item 15

The Q-LES-Q-SF (Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form) measures the patient's satisfaction with medication and overall quality of life. The 15th item queries respondents' satisfaction with the medication they are taking, rated on a 1 to 4 scale, score 0 indicates that no medication was taken. Higher scores are indicative of greater satisfaction. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-52140.3
2 mg BID TC-52140.4
4 mg BID TC-52140.2
Placebo0.4

Change in Depressive Symptoms From Randomization (Week 8) to End of Treatment (Week 16) as Measured by Hamilton Rating Scale for Depression-17 Items (HAMD-17) Total Score

A 17-item, clinician-rated scale that assesses depressive symptoms. The HAMD-17 consists of 17 symptoms, each of which is rated from 0 to 2 or 0 to 4, where 0 is none/absent. The HAMD-17 total score is calculated as the sum of the 17 individual symptom scores; the total score can range from 0 to 52. Higher HAMD-17 scores indicate more severe depression. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-10.1
2 mg BID TC-5214-9.7
4 mg BID TC-5214-9.5
Placebo-9.1

Change in Functional Impairment From Randomization (Week 8) to End of Treatment (Week 16) as Measured by SDS Family Life/Home Responsibilities Domain Score

A 5-item, self-administered scale that measures the extent a patient is impaired by their disease. Higher scores indicate more severe impairment. The 3 inter-correlated domains are school/work, social life, and family life/home responsibilities. The numerical rating for the SDS family life/home responsibilities domain score is 0- 10, where 10 is considered to be 'highly impaired'. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-1.9
2 mg BID TC-5214-1.8
4 mg BID TC-5214-1.6
Placebo-1.6

Change in Functional Impairment From Randomization (Week 8) to End of Treatment (Week 16) as Measured by SDS Social Life Domain Score

A 5-item, self-administered scale that measures the extent a patient is impaired by their disease. Higher scores indicate more severe impairment. The 3 inter-correlated domains are school/work, social life, and family life/home responsibilities. The numerical rating for the SDS social life domain score is 0- 10, where 10 is considered to be 'highly impaired'. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-1.9
2 mg BID TC-5214-1.9
4 mg BID TC-5214-1.6
Placebo-1.9

Change in Functional Impairment From Randomization (Week 8) to End of Treatment (Week 16) as Measured by SDS Work/School Domain Score

A 5-item, self-administered scale that measures the extent a patient is impaired by their disease. Higher scores indicate more severe impairment. The 3 inter-correlated domains are school/work, social life, and family life/home responsibilities. The numerical rating for the work/school domain score is 0- 10, where 10 is considered to be 'highly impaired'. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-1.7
2 mg BID TC-5214-1.8
4 mg BID TC-5214-1.7
Placebo-1.7

Change in Functional Impairment From Randomization (Week 8) to End of Treatment (Week 16) as Measured by the Sheehan Disability Scale (SDS) Total Score

Sheehan Disability Scale (SDS) is 5-item, self-administered scale that measures the extent a patient is impaired by their disease. Higher scores indicate more severe impairment. The SDS total score is calculated as the sum of the score for the 3 inter-correlated domains (school/work, social life, and family life/home responsibilities) and ranges from 0 (unimpaired) to 30 (highly impaired). (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-5.53
2 mg BID TC-5214-5.45
4 mg BID TC-5214-4.53
Placebo-4.93

Change in Hamilton Anxiety Scale (HAM-A) Total Score From Randomization (Week 8) to End of Treatment (Week 16)

A 14-item clinician-administered scale for the evaluation of anxiety symptoms. Each HAM-A item is rated on a 0 to 4 scale, the total score can range from 0 to 56. Higher HAM-A scores indicate higher levels of anxiety. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-7.07
2 mg BID TC-5214-6.46
4 mg BID TC-5214-6.75
Placebo-6.24

Change in Irritability Symptoms as Measured by the Sheehan Irritability Scale (SIS) Total Score From Randomization (Week 8) to End of Treatment (Week 16)

A self-administered scale to be used by clinical subjects to rate suffering over the past week with regard to irritability symptoms. The total SIS score is the sum of 7 items, and ranges from 0 to 70. Each item is assessed on an 11- point scale where 0=not at all, 1-3=mildly, 4-6=moderately, 7-9=markedly, and 10=extremely. The SIS also records the number of days impaired by irritability. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-10.2
2 mg BID TC-5214-10.1
4 mg BID TC-5214-8.3
Placebo-8.8

Change in MADRS Total Score From Randomization (Week 8) to Week 10

A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms. (NCT01153347)
Timeframe: Randomization (Week 8) to Week 10

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-6.3
2 mg BID TC-5214-6.9
4 mg BID TC-5214-7.3
Placebo-7.1

Change in MADRS Total Score From Randomization (Week 8) to Week 12

A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms. (NCT01153347)
Timeframe: Randomization (Week 8) to Week 12

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-9.4
2 mg BID TC-5214-9.4
4 mg BID TC-5214-8.9
Placebo-8.5

Change in MADRS Total Score From Randomization (Week 8) to Week 14

A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms. (NCT01153347)
Timeframe: Randomization (Week 8) to Week 14

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-11.0
2 mg BID TC-5214-11.3
4 mg BID TC-5214-10.6
Placebo-10.7

Change in MADRS Total Score From Randomization (Week 8) to Week 9

A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms. (NCT01153347)
Timeframe: Randomization (Week 8) to Week 9

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-4.0
2 mg BID TC-5214-5.1
4 mg BID TC-5214-4.0
Placebo-5.0

Change in Overall Quality of Life and Satisfaction From Randomization (Week 8) to End of Treatment (Week 16) by Assessing the Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form (Q-LES-Q-SF) % Maximum Total Score

The Q-LES-Q-SF total score is derived by summing item scores 1 to 14. Higher scores are indicative of greater enjoyment or satisfaction in each domain. The Q-LES-Q-SF % maximum total score is calculated as 100% × (Q-LES-Q-SF total score - 14) / 56, and can range from 0% to 100%. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-521412.81
2 mg BID TC-521411.42
4 mg BID TC-52148.83
Placebo10.71

Change in the Clinician-rated Global Outcome of Severity as Measured by the Clinical Global Impression-Severity (CGI-S) Score From Randomization (Week 8) to End of Treatment (Week 16)

A 3-part, clinician-administered scale that rates the improvement or worsening of the patient's illness from randomization (baseline). Each item is scored on a 1 to 7 scale. Higher CGI-S scores indicate greater illness severity. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-1.3
2 mg BID TC-5214-1.3
4 mg BID TC-5214-1.2
Placebo-1.2

Change in the Montgomery-Asberg Depression Rating Scale (MADRS) Total Score From Randomization to End of Treatment.

A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionunits on a scale (Least Squares Mean)
0.5 mg BID TC-5214-12.1
2 mg BID TC-5214-11.8
4 mg BID TC-5214-11.3
Placebo-11.2

Early and Sustained Response, Defined as a ≥50% Reduction From Randomization (Week 8) in MADRS Total Score and a MADRS Total Score of ≤12 at Week 10, Week 12, Week 14, and End of Treatment (Week 16)

"The percentage of patients with a ≥50% reduction from randomization (Week 8) in MADRS total score and a MADRS total score of ≤12 at Week 10, Week 12, Week 14, and end of treatment (Week 16) was calculated.~A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms." (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16); Week 10, Week 12, Week 14, and Week 16

Interventionpercentage of participants analyzed (Number)
0.5 mg BID TC-52148.8
2 mg BID TC-52147.8
4 mg BID TC-52148.3
Placebo8.5

Remission in Depressive Symptoms of MDD, Defined as MADRS Total Score of ≤8 at End of Treatment (Week 16)

"The percentage of patients with a MADRS total score of ≤8 at end of treatment (Week 16) was calculated.~A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms." (NCT01153347)
Timeframe: Week 16

Interventionpercentage of participants analyzed (Number)
0.5 mg BID TC-521429.0
2 mg BID TC-521426.9
4 mg BID TC-521423.7
Placebo29.9

Response in Depressive Symptoms of Major Depressive Disorder (MDD), Defined as a ≥50% Reduction From Randomization (Week 8) in MADRS Total Score at End of Treatment (Week 16)

"The percentage of patients with a ≥50% reduction from randomization (Week 8) in MADRS total score at end of treatment (Week 16) was calculated.~A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms." (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

Interventionpercentage of participants analyzed (Number)
0.5 mg BID TC-521443.9
2 mg BID TC-521439.7
4 mg BID TC-521438.8
Placebo42.7

Sustained Remission, Defined as a MADRS Total Score of ≤8 at Week 12, Week 14, and End of Treatment (Week 16)

"The percentage of patients with a MADRS total score of ≤8 at Week 12, Week 14, and end of treatment (Week 16)was calculated.~A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms." (NCT01153347)
Timeframe: Week 12, Week 14, Week 16

Interventionpercentage of participants analyzed (Number)
0.5 mg BID TC-521410.3
2 mg BID TC-521412.7
4 mg BID TC-52147.6
Placebo9.2

Sustained Response, Defined as a ≥50% Reduction From Randomization (Week 8) in MADRS Total Score and a MADRS Total Score of ≤12 at Week 12, Week 14, and End of Treatment (Week 16)

"The percentage of patients with a ≥50% reduction from randomization (Week 8) in MADRS total score and a MADRS total score of ≤12 at Week 12, Week 14, and end of treatment (Week 16) was calculated.~A 10-item scale for the evaluation of depressive symptoms. Each MADRS item is rated on a 0 to 6 scale. The MADRS total score is calculated as the sum of the 10 individual item scores; the total score can range from 0 to 60. Higher MADRS scores indicate higher levels of depressive symptoms." (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16); Week 12, Week 14, and Week 16

Interventionpercentage of patients analyzed (Number)
0.5 mg BID TC-521415.9
2 mg BID TC-521418.7
4 mg BID TC-521414.0
Placebo15.9

Change in EuroQol - 5 Dimensions (EQ-5D) From Randomization (Week 8) to End of Treatment (Week 16)

A self-assessment questionnaire that provides 2 measures of health status. The EQ-5D index score is a weighted linear combination over 5 dimensions of health status. The score for each of the 5 dimensions can range from 1 to 3, and an equation is used to calculate the EQ-5D index score. The EQ-5D index score can range from possible negative values (minimum -0.415) to a maximum of 1.0. The EQ-VAS is a visual analog scale with a range of 0 to 100. For both variables, a higher score indicates a better health state. (NCT01153347)
Timeframe: Randomization (Week 8) to end of treatment (Week 16)

,,,
Interventionunits on a scale (Least Squares Mean)
EQ-5D index scoreEQ-5D VAS score
0.5 mg BID TC-52140.11413.4
2 mg BID TC-52140.10712.9
4 mg BID TC-52140.10610.3
Placebo0.12011.5

Trials

1 trial available for mecamylamine and Refractory Depression

ArticleYear
Two Phase III randomised double-blind studies of fixed-dose TC-5214 (dexmecamylamine) adjunct to ongoing antidepressant therapy in patients with major depressive disorder and an inadequate response to prior antidepressant therapy.
    The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry, 2015, Volume: 16, Issue:7

    Topics: Adolescent; Adult; Aged; Antidepressive Agents; Citalopram; Depressive Disorder, Major; Depressive D

2015
Two Phase III randomised double-blind studies of fixed-dose TC-5214 (dexmecamylamine) adjunct to ongoing antidepressant therapy in patients with major depressive disorder and an inadequate response to prior antidepressant therapy.
    The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry, 2015, Volume: 16, Issue:7

    Topics: Adolescent; Adult; Aged; Antidepressive Agents; Citalopram; Depressive Disorder, Major; Depressive D

2015
Two Phase III randomised double-blind studies of fixed-dose TC-5214 (dexmecamylamine) adjunct to ongoing antidepressant therapy in patients with major depressive disorder and an inadequate response to prior antidepressant therapy.
    The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry, 2015, Volume: 16, Issue:7

    Topics: Adolescent; Adult; Aged; Antidepressive Agents; Citalopram; Depressive Disorder, Major; Depressive D

2015
Two Phase III randomised double-blind studies of fixed-dose TC-5214 (dexmecamylamine) adjunct to ongoing antidepressant therapy in patients with major depressive disorder and an inadequate response to prior antidepressant therapy.
    The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry, 2015, Volume: 16, Issue:7

    Topics: Adolescent; Adult; Aged; Antidepressive Agents; Citalopram; Depressive Disorder, Major; Depressive D

2015