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24-Week Efficacy & Safety Study of Brisdelle™ (Formerly Known as Mesafem) in the Treatment of Vasomotor Symptoms

A Phase 3, Twenty-Four Week, Multicenter, Double-Blind, Randomized, Placebo-Controlled, Efficacy and Safety Study of Mesafem (Paroxetine Mesylate) Capsules in the Treatment of Vasomotor Symptoms Associated With Menopause

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01101841
Enrollment
570
Registered
2010-04-12
Start date
2010-03-31
Completion date
2011-11-30
Last updated
2015-10-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hot Flashes

Keywords

Vasomotor Symptoms, Menopause, Hot Flashes, Perimenopause, Nonhormonal therapies, Climacteric symptoms, Mesafem, Low-Dose Mesylate salt of Paroxetine (LDMP)

Brief summary

To assess the safety and efficacy of Brisdelle (paroxetine mesylate) Capsules 7.5 mg for treatment of vasomotor symptoms (VMS) associated with menopause

Detailed description

The study is a 24-week, multicenter, double-blind, randomized, placebo-controlled study of Brisdelle (paroxetine mesylate) Capsules 7.5 mg in subjects with moderate to severe postmenopausal VMS, defined as follows: 1. Moderate VMS: Sensation of heat with sweating, able to continue activity 2. Severe VMS: Sensation of heat with sweating, causing cessation of activity The study is comprised of a screening period, a run-in period, a baseline visit, and a double-blind treatment period.

Interventions

Eligible subjects will be randomized to receive either Brisdelle (paroxetine mesylate) Capsules 7.5 mg or placebo capsules in a 1:1 ratio.

DRUGPlacebo capsules

Eligible subjects will be randomized to receive either Brisdelle (paroxetine mesylate) Capsules 7.5 mg or placebo capsules in a 1:1 ratio.

Sponsors

Noven Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
40 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Female, \>40 years of age 2. Reported more than 7-8 moderate to severe hot flashes per day (average) or 50-60 moderate to severe hot flashes per week for at least 30 days prior 3. Spontaneous amenorrhea for at least 12 consecutive months 4. Amenorrhea for at least 6 months and meet the biochemical criteria for menopause 5. Bilateral salpingo-oophorectomy \>6 weeks with or without hysterectomy

Exclusion criteria

1. BMI ≥ 40 kg/m² 2. Known non-responder to previous Selective serotonin reuptake inhibitor (SSRI) or Serotonin norepinephrine reuptake inhibitor (SNRI) treatment for VMS 3. History of self-injurious behavior 4. History of clinical diagnosis of depression; or treatment for depression 5. History of clinical diagnosis of borderline personality disorder 6. Use of an investigational study medication within 30 days prior to screening or during the study 7. Concurrent participation in another clinical trial or previous participation in this trial 8. Family of investigational-site staff

Design outcomes

Primary

MeasureTime frameDescription
Mean Change From Baseline in Hot Flash Frequency at Week 4 and Week 12.Week 4 and Week 12Subjects recorded the number of hot flashes per week using an electronic diary. The results reported are not hot flashes per week. The results reported are: * Mean Baseline frequency of moderate to severe VMS * Mean change in frequency of moderate to severe VMS from baseline to Week 4 * Mean change in frequency of moderate to severe VMS from baseline to Week 12
Mean Change From Baseline in Hot Flash Severity at Week 4 and Week 12.Week 4 and Week 12Subjects recorded the number of hot flashes per week using an electronic diary. Severity score for hot flashes for each subject was calculated as the sum of 2 times the number of moderate hot flashes, plus 3 times the number of severe hot flashes, divided by the total number of moderate and severe hot flashes. Weekly Severity Score = (2•Fm +3•FS)/(Fm + FS) Daily Severity Score = {(2•F) m +3•FS)/(Fm + FS)}/7 Where, Fm= Frequency of Moderate Hot Flashes Fs = Frequency of Severe Hot Flashes

Secondary

MeasureTime frameDescription
Change From Baseline in Total Number of Awakenings Due to Hot Flashes, MedianWeek 4 and Week 12Participants completed a electronic diary to report nightime awakenings. Subjects took study drug once daily at bedtime and they were instructed to complete daily hot flash and sleep diaries to record the number of hot flashes daily, the severity of each episode of hot flash and total number of awakenings due to hot flashes. The diary data was used to evaluate and compare the treatment groups, on the change from baseline to Week 4 and Week 12, in the total number of awakenings due to hot flashes. The total number of awakenings due to hot flashes in the run-in period was used as baseline.
Change in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), MedianWeek 4 and Week 12Subjects were weighed at each clinic visit and reported the number of hot flashes using an electronic diary. For the BMI ≥32 kg/m2 subgroup, the mean weekly reduction in frequency of moderate to severe hot flashes from Baseline was calculated for Week 4 and Week 12.
Change in Severity of Moderate to Severe Hot Flashes From Baseline (BMI <32 kg/m2, At Week 4 and Week 12), MedianWeek 4 and Week 12Subjects were weighed at each clinic visit and reported the number of hot flashes using an electronic diary. For the BMI \<32 kg/m2 subgroup, the mean weekly reduction in the severity of moderate to severe hot flashes from Baseline was calculated at Week 4 and Week 12. Subjects recorded the number of hot flashes per week using an electronic diary. Severity score for hot flashes for each subject was calculated as the sum of 2 times the number of moderate hot flashes, plus 3 times the number of severe hot flashes, divided by the total number of moderate and severe hot flashes. Weekly Severity Score = (2•Fm +3•FS)/(Fm + FS) Daily Severity Score = {(2•F) m +3•FS)/(Fm + FS)}/7 Where, Fm= Frequency of Moderate Hot Flashes Fs = Frequency of Severe Hot Flashes The calculated severity score is reported below.
Change in Severity of Moderate to Severe Hot Flashes From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), MedianWeek 4 and Week 12Subjects were weighed at each clinic visit and reported the number of hot flashes using an electronic diary. For the BMI ≥32 kg/m2 subgroup, the mean weekly reduction in the severity of moderate to severe hot flashes from Baseline was calculated at Week 4 and Week 12. Subjects recorded the number of hot flashes per week using an electronic diary. Severity score for hot flashes for each subject was calculated as the sum of 2 times the number of moderate hot flashes, plus 3 times the number of severe hot flashes, divided by the total number of moderate and severe hot flashes. Weekly Severity Score = (2•Fm +3•FS)/(Fm + FS) Daily Severity Score = {(2•F) m +3•FS)/(Fm + FS)}/7 Where, Fm= Frequency of Moderate Hot Flashes Fs = Frequency of Severe Hot Flashes The calculated severity score is reported below.
Change From Baseline in Greene Climacteric Scale (GCS) at Week 4 and Week 12, Total Score, MedianWeek 4 and Week 12The Greene Climacteric Scale (GCS) was used for this measurement. The scale has 21 questions and measures symptoms in 4 areas; these are psychological (anxiety and depression), physical, vasomotor, and libido. The severity of the symptom was scored as: 0=none, 1=mild, 2=moderate, and 3=severe. Anxiety was determined by using the sum of scores 1 to 6, and depression was determined by using the sum of scores 7 to 11. Physical aspects were determined by using the sum of scores 12 to 18; vasomotor aspects were determined by using the sum of scores 19 to 20; and libido was determined by using the score for question 21. The total GCS score ranges from 0 to 63 which is the sum of all the scores for the 21-symptom assessment questions in this scale. Each subject's total GCS score at baseline and at Week 4 and Week 12 were used to calculate change from baseline in these symptoms. The change from baseline is reported below.
Percentage of RespondersWeek 4 and Week 12Participants reported the number of hot flashes using an electronic diary. Participants who hd a ≥50% reduction in hot flash frequency were defined as responders. The percent of responders is presented below.
Percent Persistence of Benefit, Statistically Significant Difference in Having 50% or More Reduction Compared to Baseline at Week 24.Week 24Persistence of treatment benefit to 24 weeks post treatment was assessed by using the following responder analysis. Responders were defined as those subjects who achieved ≥ 50% reduction from baseline in moderate to severe hot-flash frequency at Week 24; the percent change in hot flash frequency is calculated using the formula: Percent reduction at week 24 = \[(number of moderate to severe hot flash frequency at baseline - number of moderate to severe hot flash frequency at week 24) / number of moderate to severe hot flash frequency at baseline \]\*100%.
Change From Baseline in Arizona Sexual Experience Scale (ASEX, Week 4 and Week 12) Total Score, MedianWeek 4 and Week 12The Arizona Sexual Experiences Scale (ASEX) is a 5-item rating scale that quantifies sex drive, arousal, vaginal lubrication/penile erection, ability to reach orgasm, and satisfaction from orgasm. Possible total scores range from 5 to 30, with the higher scores indicating more sexual dysfunction.The sum of the scores for all 5 items was calculated at Week 4 and Week 12.
Effect of Paroxetine Mesylate Capsules on Percent Improvement of Hot Flash Interference From Baseline at Week 4 and Week 12, Hot Flash Related Daily Interference Scale (HFRDIS)Week 4 and Week 12Interference of hot flashes was measured by using the hot flash-related daily interference scale (HFRDIS). The HFRDIS is a 10-item scale that measures the degree to which hot flashes interfere with 9 daily activities and the tenth item measures the degree to which hot flashes interfere with each of the other items. Subjects can score for each item on a scale from 0 to 10 where 0 = Do not interfere and a score of 10 = Completely interferes. The measure being reported below is percentage of responders who had an improvement in HFRDIS score at Week 4 and Week 12 compared to baseline. A responder is defined as a subject who had an improvement in the HFRDIS score. An improvement is defined as a score ≤3 on each question.
Percent Responders Improvement in VMS From Baseline Using the Clinical Global Impression (CGI) Scale.Week 4 and Week 12Proportion of NRS Responders: Subject's overall improvement in VMS from Baseline was assessed using the Numerical Rating Scale (NRS) The Clinical Global Impression - Severity scale (CGI-S) is a 7-point scale that requires the clinician to rate the severity of the patient's illness at the time of assessment, relative to the clinician's past experience with patients who have the same diagnosis. Considering total clinical experience, a patient is assessed on severity of mental illness at the time of rating 1, normal, not at all ill; 2, borderline mentally ill; 3, mildly ill; 4, moderately ill; 5, markedly ill; 6, severely ill; or 7, extremely ill. Responders: Subjects Achieving a Score of Very Much Improved Or Much Improved Or Minimally Improved. Non Responders: Subjects with a Score of No Change Or Minimally Worse Or Much Worse Or Very Much Worse.
Effect of Brisdelle (Paroxetine Mesylate) Capsules on Anxiety and DepressionWeek 4 and Week 12Depression & anxiety were measured by using the Hospital Anxiety & Depression Scale (HADS). The HADS was developed to assess anxiety & depression. It is meant to differentiate symptoms of depression with those of anxiety. Number of items: 14 (7 questions relating to anxiety; 7 questions relating to depression). Responses are based on the relative frequency of symptoms over the past week, using a four point scale ranging from 0 (not at all) to 3 (very often indeed). Responses are summed to provide separate scores for anxiety and depression symptomology with possible scores ranging from 0 to 21 for each scale. The results presented below are the percentage of participants with abnormal HADS Scores for both Abnormal Anxiety & Abnormal Depression at Week 4 and Week 12.
Assessment of MoodWeek 4 and Week 12Mood was measured by using the Profile of Mood States (POMS) questionnaire. The Profile of Moods States (POMS) is a 65-item multi-dimensional measure that provides a method of assessing transient, fluctuating active mood states. Key areas that are measured include: tension-anxiety, anger-hostility, fatigue-inertia, depression-dejection, vigor-activity, confusion-bewilderment. Responses to questions are scored with the following numerical values: Not at all = 1, A little = 2, Moderate = 3, Quite a bit = 4, Extremely = 5. A total score for a domain was obtained by summing the responses of individual items in the domain. The total POMS score can range from 65 to 325. Each subject's total POMS score at baseline and at Week 4 and Week 12 were used to calculate the percent of participants with less disturbance in mood at Week 4 and Week 12 compared to baseline. The percent of participants with less disturbance in mood is reported below.
BMI Change From Baseline (kg/m2), MedianWeek 4 and Week 12Subjects were weighed at each clinic visit and reported the number of hot flashes using an electronic diary. Assessment of the effect of Brisdelle compared with placebo on body mass index.
Percent Daytime and Nighttime Responders, Numerical Rating Scale (NRS)Week 4 and Week 12Subject's overall improvement in VMS from Baseline assessed using the Numerical Rating Scale (NRS) The NRS is measured on a scale of 0 to 10 on how bothered the subject was by her VMS (0=not bothered at all and 10=very much bothered). Responders: Subjects with NRS Score of 5 Or Less. Non-Responders: Subjects With NRS Score of Greater than Or Equal to 6.
Change in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI <32 kg/m2, Week 4 and Week 12), MedianWeek 4 and Week 12Subjects were weighed at each clinic visit and reported the number of hot flashes using an electronic diary. For the BMI \<32 kg/m2 subgroup, the mean weekly reduction in frequency of moderate to severe hot flashes from Baseline was calculated for Week 4 and Week 12.

Countries

United States

Participant flow

Recruitment details

24-week, multicenter, double-blind, randomized, placebo-controlled study of Brisdelle (paroxetine mesylate) Capsules in subjects with moderate to severe postmenopausal vasomotor symptoms. Locations: Medical Clinics

Participants by arm

ArmCount
Brisdelle (Paroxetine Mesylate) Capsules
Experimental Eligible subjects were randomized to receive either Brisdelle (paroxetine mesylate) Capsules or placebo capsules in a 1:1 ratio.
285
Placebo Capsules
Eligible subjects were randomized to receive either Brisdelle (paroxetine mesylate) Capsules or placebo capsules in a 1:1 ratio.
285
Total570

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event1515
Overall StudyEligibility Criteria12
Overall StudyLack of Efficacy02
Overall StudyLost to Follow-up93
Overall StudyOther01
Overall StudyPhysician Decision02
Overall StudyProtocol Violation11
Overall StudySuicidality Tracking Scale31
Overall StudyWithdrawal by Subject2140

Baseline characteristics

CharacteristicPlacebo CapsulesBrisdelle (Paroxetine Mesylate) CapsulesTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
18 Participants16 Participants34 Participants
Age, Categorical
Between 18 and 65 years
267 Participants269 Participants536 Participants
Age, Continuous54.5 years
STANDARD_DEVIATION 5.74
54.2 years
STANDARD_DEVIATION 5.47
54.4 years
STANDARD_DEVIATION 5.6
Region of Enrollment
United States
285 participants285 participants570 participants
Sex: Female, Male
Female
285 Participants285 Participants570 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
161 / 285146 / 285
serious
Total, serious adverse events
13 / 2857 / 285

Outcome results

Primary

Mean Change From Baseline in Hot Flash Frequency at Week 4 and Week 12.

Subjects recorded the number of hot flashes per week using an electronic diary. The results reported are not hot flashes per week. The results reported are: * Mean Baseline frequency of moderate to severe VMS * Mean change in frequency of moderate to severe VMS from baseline to Week 4 * Mean change in frequency of moderate to severe VMS from baseline to Week 12

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (MEAN)Dispersion
Brisdelle (Paroxetine Mesylate) CapsulesMean Change From Baseline in Hot Flash Frequency at Week 4 and Week 12.Baseline10.83 Hot flashes per dayStandard Deviation 3.86
Brisdelle (Paroxetine Mesylate) CapsulesMean Change From Baseline in Hot Flash Frequency at Week 4 and Week 12.Week 4-4.13 Hot flashes per dayStandard Deviation 4.02
Brisdelle (Paroxetine Mesylate) CapsulesMean Change From Baseline in Hot Flash Frequency at Week 4 and Week 12.Week 12-5.31 Hot flashes per dayStandard Deviation 4.67
Placebo CapsulesMean Change From Baseline in Hot Flash Frequency at Week 4 and Week 12.Baseline10.90 Hot flashes per dayStandard Deviation 3.96
Placebo CapsulesMean Change From Baseline in Hot Flash Frequency at Week 4 and Week 12.Week 4-2.71 Hot flashes per dayStandard Deviation 4.31
Placebo CapsulesMean Change From Baseline in Hot Flash Frequency at Week 4 and Week 12.Week 12-3.94 Hot flashes per dayStandard Deviation 5.13
p-value: <0.0001Rank transformed ANCOVA
p-value: 0.0001Rank transformed ANCOVA
Primary

Mean Change From Baseline in Hot Flash Severity at Week 4 and Week 12.

Subjects recorded the number of hot flashes per week using an electronic diary. Severity score for hot flashes for each subject was calculated as the sum of 2 times the number of moderate hot flashes, plus 3 times the number of severe hot flashes, divided by the total number of moderate and severe hot flashes. Weekly Severity Score = (2•Fm +3•FS)/(Fm + FS) Daily Severity Score = {(2•F) m +3•FS)/(Fm + FS)}/7 Where, Fm= Frequency of Moderate Hot Flashes Fs = Frequency of Severe Hot Flashes

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (MEAN)Dispersion
Brisdelle (Paroxetine Mesylate) CapsulesMean Change From Baseline in Hot Flash Severity at Week 4 and Week 12.Baseline2.525 Hot Flash Severity Score per dayStandard Deviation 0.3
Brisdelle (Paroxetine Mesylate) CapsulesMean Change From Baseline in Hot Flash Severity at Week 4 and Week 12.Week 4-0.092 Hot Flash Severity Score per dayStandard Deviation 0.24
Brisdelle (Paroxetine Mesylate) CapsulesMean Change From Baseline in Hot Flash Severity at Week 4 and Week 12.Week 12-0.0126 Hot Flash Severity Score per dayStandard Deviation 0.31
Placebo CapsulesMean Change From Baseline in Hot Flash Severity at Week 4 and Week 12.Baseline2.532 Hot Flash Severity Score per dayStandard Deviation 0.32
Placebo CapsulesMean Change From Baseline in Hot Flash Severity at Week 4 and Week 12.Week 4-0.059 Hot Flash Severity Score per dayStandard Deviation 0.22
Placebo CapsulesMean Change From Baseline in Hot Flash Severity at Week 4 and Week 12.Week 12-0.066 Hot Flash Severity Score per dayStandard Deviation 0.26
p-value: 0.0368Rank transformed ANCOVA
p-value: 0.0064Rank transformed ANCOVA
Secondary

Assessment of Mood

Mood was measured by using the Profile of Mood States (POMS) questionnaire. The Profile of Moods States (POMS) is a 65-item multi-dimensional measure that provides a method of assessing transient, fluctuating active mood states. Key areas that are measured include: tension-anxiety, anger-hostility, fatigue-inertia, depression-dejection, vigor-activity, confusion-bewilderment. Responses to questions are scored with the following numerical values: Not at all = 1, A little = 2, Moderate = 3, Quite a bit = 4, Extremely = 5. A total score for a domain was obtained by summing the responses of individual items in the domain. The total POMS score can range from 65 to 325. Each subject's total POMS score at baseline and at Week 4 and Week 12 were used to calculate the percent of participants with less disturbance in mood at Week 4 and Week 12 compared to baseline. The percent of participants with less disturbance in mood is reported below.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (NUMBER)
Brisdelle (Paroxetine Mesylate) CapsulesAssessment of MoodWeek 437.40 Percent of participants
Brisdelle (Paroxetine Mesylate) CapsulesAssessment of MoodWeek 1237.16 Percent of participants
Placebo CapsulesAssessment of MoodWeek 442.39 Percent of participants
Placebo CapsulesAssessment of MoodWeek 1244.23 Percent of participants
Secondary

BMI Change From Baseline (kg/m2), Median

Subjects were weighed at each clinic visit and reported the number of hot flashes using an electronic diary. Assessment of the effect of Brisdelle compared with placebo on body mass index.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (MEDIAN)
Brisdelle (Paroxetine Mesylate) CapsulesBMI Change From Baseline (kg/m2), MedianWeek 40.00 kg/m2
Brisdelle (Paroxetine Mesylate) CapsulesBMI Change From Baseline (kg/m2), MedianWeek 120.15 kg/m2
Placebo CapsulesBMI Change From Baseline (kg/m2), MedianWeek 40.08 kg/m2
Placebo CapsulesBMI Change From Baseline (kg/m2), MedianWeek 120.11 kg/m2
Secondary

Change From Baseline in Arizona Sexual Experience Scale (ASEX, Week 4 and Week 12) Total Score, Median

The Arizona Sexual Experiences Scale (ASEX) is a 5-item rating scale that quantifies sex drive, arousal, vaginal lubrication/penile erection, ability to reach orgasm, and satisfaction from orgasm. Possible total scores range from 5 to 30, with the higher scores indicating more sexual dysfunction.The sum of the scores for all 5 items was calculated at Week 4 and Week 12.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (MEDIAN)
Brisdelle (Paroxetine Mesylate) CapsulesChange From Baseline in Arizona Sexual Experience Scale (ASEX, Week 4 and Week 12) Total Score, MedianWeek 40.00 Units on a scale
Brisdelle (Paroxetine Mesylate) CapsulesChange From Baseline in Arizona Sexual Experience Scale (ASEX, Week 4 and Week 12) Total Score, MedianWeek 120.00 Units on a scale
Placebo CapsulesChange From Baseline in Arizona Sexual Experience Scale (ASEX, Week 4 and Week 12) Total Score, MedianWeek 120.00 Units on a scale
Placebo CapsulesChange From Baseline in Arizona Sexual Experience Scale (ASEX, Week 4 and Week 12) Total Score, MedianWeek 40.00 Units on a scale
Secondary

Change From Baseline in Greene Climacteric Scale (GCS) at Week 4 and Week 12, Total Score, Median

The Greene Climacteric Scale (GCS) was used for this measurement. The scale has 21 questions and measures symptoms in 4 areas; these are psychological (anxiety and depression), physical, vasomotor, and libido. The severity of the symptom was scored as: 0=none, 1=mild, 2=moderate, and 3=severe. Anxiety was determined by using the sum of scores 1 to 6, and depression was determined by using the sum of scores 7 to 11. Physical aspects were determined by using the sum of scores 12 to 18; vasomotor aspects were determined by using the sum of scores 19 to 20; and libido was determined by using the score for question 21. The total GCS score ranges from 0 to 63 which is the sum of all the scores for the 21-symptom assessment questions in this scale. Each subject's total GCS score at baseline and at Week 4 and Week 12 were used to calculate change from baseline in these symptoms. The change from baseline is reported below.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (MEDIAN)
Brisdelle (Paroxetine Mesylate) CapsulesChange From Baseline in Greene Climacteric Scale (GCS) at Week 4 and Week 12, Total Score, MedianWeek 4-3.00 units on a scale
Brisdelle (Paroxetine Mesylate) CapsulesChange From Baseline in Greene Climacteric Scale (GCS) at Week 4 and Week 12, Total Score, MedianWeek 12-4.00 units on a scale
Placebo CapsulesChange From Baseline in Greene Climacteric Scale (GCS) at Week 4 and Week 12, Total Score, MedianWeek 4-3.00 units on a scale
Placebo CapsulesChange From Baseline in Greene Climacteric Scale (GCS) at Week 4 and Week 12, Total Score, MedianWeek 12-3.00 units on a scale
Secondary

Change From Baseline in Total Number of Awakenings Due to Hot Flashes, Median

Participants completed a electronic diary to report nightime awakenings. Subjects took study drug once daily at bedtime and they were instructed to complete daily hot flash and sleep diaries to record the number of hot flashes daily, the severity of each episode of hot flash and total number of awakenings due to hot flashes. The diary data was used to evaluate and compare the treatment groups, on the change from baseline to Week 4 and Week 12, in the total number of awakenings due to hot flashes. The total number of awakenings due to hot flashes in the run-in period was used as baseline.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (MEDIAN)
Brisdelle (Paroxetine Mesylate) CapsulesChange From Baseline in Total Number of Awakenings Due to Hot Flashes, MedianWeek 4-8.50 Awakenings
Brisdelle (Paroxetine Mesylate) CapsulesChange From Baseline in Total Number of Awakenings Due to Hot Flashes, MedianWeek 12-13.15 Awakenings
Placebo CapsulesChange From Baseline in Total Number of Awakenings Due to Hot Flashes, MedianWeek 4-6.62 Awakenings
Placebo CapsulesChange From Baseline in Total Number of Awakenings Due to Hot Flashes, MedianWeek 12-8.67 Awakenings
Secondary

Change in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI <32 kg/m2, Week 4 and Week 12), Median

Subjects were weighed at each clinic visit and reported the number of hot flashes using an electronic diary. For the BMI \<32 kg/m2 subgroup, the mean weekly reduction in frequency of moderate to severe hot flashes from Baseline was calculated for Week 4 and Week 12.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (MEDIAN)
Brisdelle (Paroxetine Mesylate) CapsulesChange in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI <32 kg/m2, Week 4 and Week 12), MedianWeek 4-28.50 Hot flashes per week
Brisdelle (Paroxetine Mesylate) CapsulesChange in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI <32 kg/m2, Week 4 and Week 12), MedianWeek 12-41.00 Hot flashes per week
Placebo CapsulesChange in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI <32 kg/m2, Week 4 and Week 12), MedianWeek 4-18.0 Hot flashes per week
Placebo CapsulesChange in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI <32 kg/m2, Week 4 and Week 12), MedianWeek 12-27.00 Hot flashes per week
Secondary

Change in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), Median

Subjects were weighed at each clinic visit and reported the number of hot flashes using an electronic diary. For the BMI ≥32 kg/m2 subgroup, the mean weekly reduction in frequency of moderate to severe hot flashes from Baseline was calculated for Week 4 and Week 12.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (MEDIAN)
Brisdelle (Paroxetine Mesylate) CapsulesChange in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), MedianWeek 4-22.0 Hot flashes per week
Brisdelle (Paroxetine Mesylate) CapsulesChange in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), MedianWeek 12-31.50 Hot flashes per week
Placebo CapsulesChange in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), MedianWeek 4-17.0 Hot flashes per week
Placebo CapsulesChange in Frequency of Moderate to Severe Hot Flashes Frequency From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), MedianWeek 12-23.00 Hot flashes per week
Secondary

Change in Severity of Moderate to Severe Hot Flashes From Baseline (BMI <32 kg/m2, At Week 4 and Week 12), Median

Subjects were weighed at each clinic visit and reported the number of hot flashes using an electronic diary. For the BMI \<32 kg/m2 subgroup, the mean weekly reduction in the severity of moderate to severe hot flashes from Baseline was calculated at Week 4 and Week 12. Subjects recorded the number of hot flashes per week using an electronic diary. Severity score for hot flashes for each subject was calculated as the sum of 2 times the number of moderate hot flashes, plus 3 times the number of severe hot flashes, divided by the total number of moderate and severe hot flashes. Weekly Severity Score = (2•Fm +3•FS)/(Fm + FS) Daily Severity Score = {(2•F) m +3•FS)/(Fm + FS)}/7 Where, Fm= Frequency of Moderate Hot Flashes Fs = Frequency of Severe Hot Flashes The calculated severity score is reported below.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (MEDIAN)
Brisdelle (Paroxetine Mesylate) CapsulesChange in Severity of Moderate to Severe Hot Flashes From Baseline (BMI <32 kg/m2, At Week 4 and Week 12), MedianWeek 4-0.033 Hot Flash Severity scores per week
Brisdelle (Paroxetine Mesylate) CapsulesChange in Severity of Moderate to Severe Hot Flashes From Baseline (BMI <32 kg/m2, At Week 4 and Week 12), MedianWeek 12-0.045 Hot Flash Severity scores per week
Placebo CapsulesChange in Severity of Moderate to Severe Hot Flashes From Baseline (BMI <32 kg/m2, At Week 4 and Week 12), MedianWeek 4-0.004 Hot Flash Severity scores per week
Placebo CapsulesChange in Severity of Moderate to Severe Hot Flashes From Baseline (BMI <32 kg/m2, At Week 4 and Week 12), MedianWeek 12-0.00 Hot Flash Severity scores per week
Secondary

Change in Severity of Moderate to Severe Hot Flashes From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), Median

Subjects were weighed at each clinic visit and reported the number of hot flashes using an electronic diary. For the BMI ≥32 kg/m2 subgroup, the mean weekly reduction in the severity of moderate to severe hot flashes from Baseline was calculated at Week 4 and Week 12. Subjects recorded the number of hot flashes per week using an electronic diary. Severity score for hot flashes for each subject was calculated as the sum of 2 times the number of moderate hot flashes, plus 3 times the number of severe hot flashes, divided by the total number of moderate and severe hot flashes. Weekly Severity Score = (2•Fm +3•FS)/(Fm + FS) Daily Severity Score = {(2•F) m +3•FS)/(Fm + FS)}/7 Where, Fm= Frequency of Moderate Hot Flashes Fs = Frequency of Severe Hot Flashes The calculated severity score is reported below.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (MEDIAN)
Brisdelle (Paroxetine Mesylate) CapsulesChange in Severity of Moderate to Severe Hot Flashes From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), MedianWeek 4-0.039 Hot Flash Severity scores per week
Brisdelle (Paroxetine Mesylate) CapsulesChange in Severity of Moderate to Severe Hot Flashes From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), MedianWeek 12-0.052 Hot Flash Severity scores per week
Placebo CapsulesChange in Severity of Moderate to Severe Hot Flashes From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), MedianWeek 4-0.036 Hot Flash Severity scores per week
Placebo CapsulesChange in Severity of Moderate to Severe Hot Flashes From Baseline (BMI ≥32 kg/m2, Week 4 and Week 12), MedianWeek 12-0.051 Hot Flash Severity scores per week
Secondary

Effect of Brisdelle (Paroxetine Mesylate) Capsules on Anxiety and Depression

Depression & anxiety were measured by using the Hospital Anxiety & Depression Scale (HADS). The HADS was developed to assess anxiety & depression. It is meant to differentiate symptoms of depression with those of anxiety. Number of items: 14 (7 questions relating to anxiety; 7 questions relating to depression). Responses are based on the relative frequency of symptoms over the past week, using a four point scale ranging from 0 (not at all) to 3 (very often indeed). Responses are summed to provide separate scores for anxiety and depression symptomology with possible scores ranging from 0 to 21 for each scale. The results presented below are the percentage of participants with abnormal HADS Scores for both Abnormal Anxiety & Abnormal Depression at Week 4 and Week 12.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (NUMBER)
Brisdelle (Paroxetine Mesylate) CapsulesEffect of Brisdelle (Paroxetine Mesylate) Capsules on Anxiety and DepressionWeek 45.65 Percentage of participants
Brisdelle (Paroxetine Mesylate) CapsulesEffect of Brisdelle (Paroxetine Mesylate) Capsules on Anxiety and DepressionWeek 124.13 Percentage of participants
Placebo CapsulesEffect of Brisdelle (Paroxetine Mesylate) Capsules on Anxiety and DepressionWeek 42.44 Percentage of participants
Placebo CapsulesEffect of Brisdelle (Paroxetine Mesylate) Capsules on Anxiety and DepressionWeek 125.24 Percentage of participants
Secondary

Effect of Paroxetine Mesylate Capsules on Percent Improvement of Hot Flash Interference From Baseline at Week 4 and Week 12, Hot Flash Related Daily Interference Scale (HFRDIS)

Interference of hot flashes was measured by using the hot flash-related daily interference scale (HFRDIS). The HFRDIS is a 10-item scale that measures the degree to which hot flashes interfere with 9 daily activities and the tenth item measures the degree to which hot flashes interfere with each of the other items. Subjects can score for each item on a scale from 0 to 10 where 0 = Do not interfere and a score of 10 = Completely interferes. The measure being reported below is percentage of responders who had an improvement in HFRDIS score at Week 4 and Week 12 compared to baseline. A responder is defined as a subject who had an improvement in the HFRDIS score. An improvement is defined as a score ≤3 on each question.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (NUMBER)
Brisdelle (Paroxetine Mesylate) CapsulesEffect of Paroxetine Mesylate Capsules on Percent Improvement of Hot Flash Interference From Baseline at Week 4 and Week 12, Hot Flash Related Daily Interference Scale (HFRDIS)Week 426.03 Percent of participants
Brisdelle (Paroxetine Mesylate) CapsulesEffect of Paroxetine Mesylate Capsules on Percent Improvement of Hot Flash Interference From Baseline at Week 4 and Week 12, Hot Flash Related Daily Interference Scale (HFRDIS)Week 1215.89 Percent of participants
Placebo CapsulesEffect of Paroxetine Mesylate Capsules on Percent Improvement of Hot Flash Interference From Baseline at Week 4 and Week 12, Hot Flash Related Daily Interference Scale (HFRDIS)Week 430.51 Percent of participants
Placebo CapsulesEffect of Paroxetine Mesylate Capsules on Percent Improvement of Hot Flash Interference From Baseline at Week 4 and Week 12, Hot Flash Related Daily Interference Scale (HFRDIS)Week 1221.32 Percent of participants
Secondary

Percentage of Responders

Participants reported the number of hot flashes using an electronic diary. Participants who hd a ≥50% reduction in hot flash frequency were defined as responders. The percent of responders is presented below.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (NUMBER)
Brisdelle (Paroxetine Mesylate) CapsulesPercentage of RespondersWeek 435.56 percentage of participants
Brisdelle (Paroxetine Mesylate) CapsulesPercentage of RespondersWeek 1249.30 percentage of participants
Placebo CapsulesPercentage of RespondersWeek 425.35 percentage of participants
Placebo CapsulesPercentage of RespondersWeek 1233.80 percentage of participants
Secondary

Percent Daytime and Nighttime Responders, Numerical Rating Scale (NRS)

Subject's overall improvement in VMS from Baseline assessed using the Numerical Rating Scale (NRS) The NRS is measured on a scale of 0 to 10 on how bothered the subject was by her VMS (0=not bothered at all and 10=very much bothered). Responders: Subjects with NRS Score of 5 Or Less. Non-Responders: Subjects With NRS Score of Greater than Or Equal to 6.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (NUMBER)
Brisdelle (Paroxetine Mesylate) CapsulesPercent Daytime and Nighttime Responders, Numerical Rating Scale (NRS)Week 435.48 percentage of total number of subjects
Brisdelle (Paroxetine Mesylate) CapsulesPercent Daytime and Nighttime Responders, Numerical Rating Scale (NRS)Week 1246.62 percentage of total number of subjects
Placebo CapsulesPercent Daytime and Nighttime Responders, Numerical Rating Scale (NRS)Week 1237.72 percentage of total number of subjects
Placebo CapsulesPercent Daytime and Nighttime Responders, Numerical Rating Scale (NRS)Week 425.27 percentage of total number of subjects
Secondary

Percent Persistence of Benefit, Statistically Significant Difference in Having 50% or More Reduction Compared to Baseline at Week 24.

Persistence of treatment benefit to 24 weeks post treatment was assessed by using the following responder analysis. Responders were defined as those subjects who achieved ≥ 50% reduction from baseline in moderate to severe hot-flash frequency at Week 24; the percent change in hot flash frequency is calculated using the formula: Percent reduction at week 24 = \[(number of moderate to severe hot flash frequency at baseline - number of moderate to severe hot flash frequency at week 24) / number of moderate to severe hot flash frequency at baseline \]\*100%.

Time frame: Week 24

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureValue (NUMBER)
Brisdelle (Paroxetine Mesylate) CapsulesPercent Persistence of Benefit, Statistically Significant Difference in Having 50% or More Reduction Compared to Baseline at Week 24.47.54 percentage of total number of subjects
Placebo CapsulesPercent Persistence of Benefit, Statistically Significant Difference in Having 50% or More Reduction Compared to Baseline at Week 24.36.27 percentage of total number of subjects
p-value: 0.0066Logit model
Secondary

Percent Responders Improvement in VMS From Baseline Using the Clinical Global Impression (CGI) Scale.

Proportion of NRS Responders: Subject's overall improvement in VMS from Baseline was assessed using the Numerical Rating Scale (NRS) The Clinical Global Impression - Severity scale (CGI-S) is a 7-point scale that requires the clinician to rate the severity of the patient's illness at the time of assessment, relative to the clinician's past experience with patients who have the same diagnosis. Considering total clinical experience, a patient is assessed on severity of mental illness at the time of rating 1, normal, not at all ill; 2, borderline mentally ill; 3, mildly ill; 4, moderately ill; 5, markedly ill; 6, severely ill; or 7, extremely ill. Responders: Subjects Achieving a Score of Very Much Improved Or Much Improved Or Minimally Improved. Non Responders: Subjects with a Score of No Change Or Minimally Worse Or Much Worse Or Very Much Worse.

Time frame: Week 4 and Week 12

Population: The outcome data presented for these measurements were obtained using a scale questionnaire. Data were analyzed only from participants who completed and turned in the completed questionnaire. Therefore, the number of participants analyzed is not consistent with numbers provided in any of the rows in the participant flow module.

ArmMeasureGroupValue (NUMBER)
Brisdelle (Paroxetine Mesylate) CapsulesPercent Responders Improvement in VMS From Baseline Using the Clinical Global Impression (CGI) Scale.Week 467.88 percentage of participants
Brisdelle (Paroxetine Mesylate) CapsulesPercent Responders Improvement in VMS From Baseline Using the Clinical Global Impression (CGI) Scale.Week 1269.88 percentage of participants
Placebo CapsulesPercent Responders Improvement in VMS From Baseline Using the Clinical Global Impression (CGI) Scale.Week 453.58 percentage of participants
Placebo CapsulesPercent Responders Improvement in VMS From Baseline Using the Clinical Global Impression (CGI) Scale.Week 1259.74 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026