Title

Trial to Investigate the Effect of ESN364 in Early Postmenopausal Women Suffering From Hot Flashes
Pilot/Phase IIa Trial to Investigate the Effect of ESN364 in Early Postmenopausal Women Suffering From Hot Flashes
  • Phase

    Phase 2
  • Study Type

    Interventional
  • Study Participants

    87
The primary purpose of this study was to evaluate the effect of ESN364 on the severity and frequency of hot flashes in early postmenopausal women suffering from hot flashes, in terms of changes in weekly Hot Flash Score from baseline to Week 12.

This study also evaluated the effect of ESN364 on the severity and frequency of hot flashes at additional timepoints; hot flash interference on daily life, in terms of changes from baseline over time in Hot Flash Related Daily Interference Scale (HFRDIS); the effect of ESN364 on climacteric symptoms, in terms of changes from baseline over time in Leeds Sleep Evaluation Questionnaire (LSEQ), Greene Climacteric Scale (GCS), and Sheehan Disability Scale (SDS); pharmacodynamic (PD) effect; and safety and tolerability.
Study Started
Sep 21
2015
Primary Completion
Sep 21
2016
Study Completion
Oct 06
2016
Results Posted
Jul 25
2023
Last Update
Aug 30
2023

Drug Fezolinetant

Oral Capsule

  • Other names: ESN364, ASP2693

Drug Placebo

Oral Capsule

Fezolinetant Experimental

Participants received 90 milligrams (mg) fezolinetant capsules orally, twice daily (BID) for a period of 12 weeks

Placebo Placebo Comparator

Participants received fezolinetant matching placebo capsules orally, BID for a period of 12 weeks.

Criteria

Inclusion Criteria:

Spontaneous amenorrhea for at least 12 consecutive months; or spontaneous amenorrhea for at least 6 months with biochemical criteria of menopause (FSH >40 IU/L); or spontaneous amenorrhea for at least 3 months with biochemical/physical criteria of menopause (FSH >40 IU/L and E2 <0.21 nmol/); or having had bilateral oophorectomy at least 6 weeks prior to screening (with or without hysterectomy);
At least 49 moderate or severe hot flashes or night sweats over a period of 7 consecutive days, as recorded in the daily diary during the screening period, with at least 4 of those days with 7 or more moderate or severe hot flashes per day;
In good general health as determined on the basis of medical history and general physical examination performed at screening; hematology and chemistry parameters, pulse rate and/or blood pressure, and ECG within the reference range for the population studied, or showing no clinically relevant deviations;
Negative urine test for selected drugs of abuse (amphetamines, tricyclic antidepressants, cannabinoids, cocaine, tetrahydrocannabinol, or opiates) at screening;
Negative serology panel (including hepatitis B surface antigen [HBsAg], antihepatitis C virus [HCV] and human immunodeficiency virus (HIV) antibody screens);
Negative urine pregnancy test at screening;

Exclusion Criteria:

Use of a prohibited therapy or not willing to wash-out drugs considered prohibited therapies;
History (in the past year) or presence of drug or alcohol abuse;
Suicide attempt in the past 3 years;
Previous or current history of a malignant tumor (except basal cell carcinoma);
Active liver disease or jaundice, or out-of-range values of alanine aminotransferase (ALT) and aspartate aminotransferase (AST); or total bilirubin >1.3 times the upper limit of normal (ULN); or creatinine >1.5 times the ULN; or estimated glomerular filtration rate (eGFR) using the Modification of Diet in Renal Disease (MDRD) formula <60 mL/min/1.73 m2 at screening;
Medical condition or chronic disease (including history of neurological [including cognitive], hepatic, renal, cardiovascular, gastrointestinal, pulmonary [e.g., moderate asthma], or endocrine disease) or malignancy that could confound interpretation of the study outcome;
Any psychological disorder according to the criteria indicated in the Diagnostics and Statistical Manual of Mental Disorders (DSM, 4th edition) within one year prior to screening. Such disorders include but are not limited to current major depression, alcohol (more than 3 glasses of wine, beer, or equivalent/day) or substance abuse/dependence;
Unsuited to participate in the study, based on findings observed during physical examination, vital sign assessment, or 12-lead ECG;
History of severe allergy, hypersensitivity, or intolerance to drugs in general, including the study drug and any of its excipients;
Presence or sequellae of gastrointestinal, liver, kidney or other conditions known to interfere with the absorption, distribution, metabolism, or excretion (ADME) mechanisms of drugs;
Concurrent participation in another interventional study (or participation within 3 months prior to screening in this study);
History of poor compliance in clinical studies;
Unable or unwilling to complete the study procedures;
Subject is the Investigator or any sub-investigator, research assistant, pharmacist, study coordinator, or other staff or relative thereof who is directly involved in the conduct of the study.

Summary

Placebo

Fezolinetant

All Events

Event Type Organ System Event Term Placebo Fezolinetant

Change From Baseline to Week 12 in The Weekly General Hot Flash Score

The HF score (based on severity and frequency) was calculated as: (number of mild HF/day × 1) + (number of moderate HF/day × 2) + (number of severe HF/day × 3) The severity of HFs is clinically defined as follows: Mild: sensation of heat without sweating/dampness. If at night, participant didn't wake up but later notices damp sheets or clothing. Moderate: Sensation of heat with sweating/dampness, but was able to continue activity. If at night, participant woke up because she was feeling hot and/or was sweating, but no action was necessary other than rearranging the bed sheets. Severe: Sensation of intense heat with sweating, causing disruption of activity. If at night, participant woke up hot and was sweating and needed to take action (e.g., removing layers of clothes, open the window, or get out of bed). Higher scores indicate worse symptoms. There is no maximum score since the score was participant dependent for both number and severity.

Placebo

-12.19
score on a scale (Mean)
95% Confidence Interval: -16.55 to -7.83

Fezolinetant

-26.51
score on a scale (Mean)
95% Confidence Interval: -30.83 to -22.18

Change From Baseline in The Weekly Hot Flash Severity Score at Weeks 4, 8 and 12 (Method 1)

The HF Severity Score by method 1 takes into account the number and severity of moderate and severe HF occurred during a given time period and was calculated as follows HF Severity score = [(number of moderate HF/day × 2) + (number of severe HF/day × 3)]/(number of moderate HF + number of severe HF) The severity of HFs was clinically defined as follows: Moderate: Sensation of heat with sweating/dampness, but was able to continue activity. If at night, participant woke up because she was feeling hot and/or was sweating, but no action was necessary other than rearranging the bed sheets. Severe: Sensation of intense heat with sweating, causing disruption of activity. If at night, participant woke up hot and was sweating and needed to take action (e.g., removing layers of clothes, open the window, or get out of bed). Higher scores indicate worse symptoms. There is no maximum score since the score was participant-dependent for both number and severity.

Placebo

Week 12

-0.534
score on a scale (Mean)
95% Confidence Interval: -0.798 to -0.27

Week 4

-0.294
score on a scale (Mean)
95% Confidence Interval: -0.473 to -0.116

Week 8

-0.608
score on a scale (Mean)
95% Confidence Interval: -0.899 to -0.318

Fezolinetant

Week 12

-1.656
score on a scale (Mean)
95% Confidence Interval: -1.937 to -1.376

Week 4

-1.428
score on a scale (Mean)
95% Confidence Interval: -1.718 to -1.138

Week 8

-1.557
score on a scale (Mean)
95% Confidence Interval: -1.858 to -1.257

Change From Baseline in The Weekly Hot Flash Severity Score at Weeks 4, 8 and 12 (Method 2)

The HF Severity Score by method 2 takes into account moderate and severe HF during a given time period and was calculated as follows HF Severity score = [(number of moderate HF/day × 2) + (number of severe HF/day × 3)] The severity of HFs was clinically defined as follows: Moderate: Sensation of heat with sweating/dampness, but was able to continue activity. If at night, participant woke up because she was feeling hot and/or was sweating, but no action was necessary other than rearranging the bed sheets. Severe: Sensation of intense heat with sweating, causing disruption of activity. If at night, participant woke up hot and was sweating and needed to take action (e.g., removing layers of clothes, open the window, or get out of bed). Higher scores indicate worse symptoms. There is no maximum score since the score was participant-dependent for both number and severity.

Placebo

Week 12

-12.14
score on a scale (Mean)
95% Confidence Interval: -16.62 to -7.65

Week 4

-9.55
score on a scale (Mean)
95% Confidence Interval: -12.73 to -6.36

Week 8

-11.91
score on a scale (Mean)
95% Confidence Interval: -15.72 to -8.1

Fezolinetant

Week 12

-26.61
score on a scale (Mean)
95% Confidence Interval: -31.06 to -22.17

Week 4

-25.26
score on a scale (Mean)
95% Confidence Interval: -29.64 to -20.89

Week 8

-25.71
score on a scale (Mean)
95% Confidence Interval: -30.15 to -21.27

Change From Baseline in The Weekly Mild, Moderate and Severe Hot Flash Frequency at Weeks 4, 8 and 12

The weekly HF frequency was calculated as number of mild, moderate and severe hot flashes over the week. Mild: sensation of heat without sweating/dampness. If at night, participant didn't wake up but later notices damp sheets or clothing. Moderate: Sensation of heat with sweating/dampness, but was able to continue activity. If at night, participant woke up because she was feeling hot and/or was sweating, but no action was necessary other than rearranging the bed sheets. Severe: Sensation of intense heat with sweating, causing disruption of activity. If at night, participant woke up hot and was sweating and needed to take action (e.g., removing layers of clothes, open the window, or get out of bed). Higher number of hot flashes is worse.

Placebo

Week 12

-35.6
HF's per day (Mean)
95% Confidence Interval: -46.7 to -24.5

Week 4

-26.4
HF's per day (Mean)
95% Confidence Interval: -35.2 to -17.5

Week 8

-32.9
HF's per day (Mean)
95% Confidence Interval: -43.2 to -22.7

Fezolinetant

Week 12

-75.3
HF's per day (Mean)
95% Confidence Interval: -86.4 to -64.3

Week 4

-72.3
HF's per day (Mean)
95% Confidence Interval: -82.7 to -61.8

Week 8

-73.3
HF's per day (Mean)
95% Confidence Interval: -83.8 to -62.8

Percentage of Participants With >=70% Reduction in the Weekly Hot Flash Score From Baseline to Weeks 4, 8 and 12

The HF score (based on severity and frequency) was calculated as: (number of mild HF/day × 1) + (number of moderate HF/day × 2) + (number of severe HF/day × 3) The severity of HFs is clinically defined as follows: Mild: sensation of heat without sweating/dampness. If at night, participant didn't wake up but later notices damp sheets or clothing. Moderate: Sensation of heat with sweating/dampness, but was able to continue activity. If at night, participant woke up because she was feeling hot and/or was sweating, but no action was necessary other than rearranging the bed sheets. Severe: Sensation of intense heat with sweating, causing disruption of activity. If at night, participant woke up hot and was sweating and needed to take action (e.g., removing layers of clothes, open the window, or get out of bed). Higher scores indicate worse symptoms. There is no maximum score since the score was participant-dependent for both number and severity.

Placebo

Week 12

42.5
percentage of participants
95% Confidence Interval: 27.18 to 57.82

Week 4

22.7
percentage of participants
95% Confidence Interval: 10.34 to 35.11

Week 8

39.0
percentage of participants
95% Confidence Interval: 24.09 to 53.96

Fezolinetant

Week 12

95.0
percentage of participants
95% Confidence Interval: 88.25 to 100.0

Week 4

87.8
percentage of participants
95% Confidence Interval: 77.79 to 97.82

Week 8

87.5
percentage of participants
95% Confidence Interval: 77.25 to 97.75

Percentage of Participants With >=80% Reduction in the Weekly Hot Flash Score From Baseline to Weeks 4, 8 and 12

The HF score (based on severity and frequency) was calculated as: (number of mild HF/day × 1) + (number of moderate HF/day × 2) + (number of severe HF/day × 3) The severity of HFs is clinically defined as follows: Mild: sensation of heat without sweating/dampness. If at night, participant didn't wake up but later notices damp sheets or clothing. Moderate: Sensation of heat with sweating/dampness, but was able to continue activity. If at night, participant woke up because she was feeling hot and/or was sweating, but no action was necessary other than rearranging the bed sheets. Severe: Sensation of intense heat with sweating, causing disruption of activity. If at night, participant woke up hot and was sweating and needed to take action (e.g., removing layers of clothes, open the window, or get out of bed). Higher scores indicate worse symptoms. There is no maximum score since the score was participant-dependent for both number and severity.

Placebo

Week 12

30.0
percentage of participants
95% Confidence Interval: 15.8 to 44.2

Week 4

9.1
percentage of participants
95% Confidence Interval: 0.6 to 17.59

Week 8

26.8
percentage of participants
95% Confidence Interval: 13.27 to 40.39

Fezolinetant

Week 12

87.5
percentage of participants
95% Confidence Interval: 77.25 to 97.75

Week 4

78.0
percentage of participants
95% Confidence Interval: 65.38 to 90.72

Week 8

77.5
percentage of participants
95% Confidence Interval: 64.56 to 90.44

Percentage of Participants With >=90% Reduction in the Weekly Hot Flash Score From Baseline to Weeks 4, 8 and 12

The HF score (based on severity and frequency) was calculated as: (number of mild HF/day × 1) + (number of moderate HF/day × 2) + (number of severe HF/day × 3) The severity of HF is clinically defined as follows: Mild: sensation of heat without sweating/dampness. If at night, participant didn't wake up but later notices damp sheets or clothing. Moderate: Sensation of heat with sweating/dampness, but was able to continue activity. If at night, participant woke up because she was feeling hot and/or was sweating, but no action was necessary other than rearranging the bed sheets. Severe: Sensation of intense heat with sweating, causing disruption of activity. If at night, participant woke up hot and was sweating and needed to take action (e.g., removing layers of clothes, open the window, or get out of bed). Higher scores indicate worse symptoms. There is no maximum score since the score was participant-dependent for both number and severity.

Placebo

Week 12

15.0
percentage of participants
95% Confidence Interval: 3.93 to 26.07

Week 4

6.8
percentage of participants
95% Confidence Interval: 0.0 to 14.27

Week 8

12.2
percentage of participants
95% Confidence Interval: 2.18 to 22.21

Fezolinetant

Week 12

62.5
percentage of participants
95% Confidence Interval: 47.5 to 77.5

Week 4

61.0
percentage of participants
95% Confidence Interval: 46.04 to 75.91

Week 8

60.0
percentage of participants
95% Confidence Interval: 44.82 to 75.18

Percentage of Participants With >=50% Reduction in the Weekly Frequency of Moderate and Severe HF From Baseline to Weeks 4, 8 and 12

The weekly HF frequency of moderate and severe HF was calculated as number of moderate and severe HF over the week. Moderate: Sensation of heat with sweating/dampness, but was able to continue activity. If at night, participant woke up because she was feeling hot and/or was sweating, but no action was necessary other than rearranging the bed sheets. Severe: Sensation of intense heat with sweating, causing disruption of activity. If at night, participant woke up hot and was sweating and needed to take action (e.g., removing layers of clothes, open the window, or get out of bed). Higher number of HF indicates worse symptoms.

Placebo

Week 12

55.0
percentage of participants
95% Confidence Interval: 39.58 to 70.42

Week 4

45.5
percentage of participants
95% Confidence Interval: 30.74 to 60.17

Week 8

53.7
percentage of participants
95% Confidence Interval: 38.39 to 68.92

Fezolinetant

Week 12

97.5
percentage of participants
95% Confidence Interval: 92.66 to 100.0

Week 4

95.1
percentage of participants
95% Confidence Interval: 88.53 to 100.0

Week 8

97.5
percentage of participants
95% Confidence Interval: 92.66 to 100.0

Percentage of Participants With >=70% Reduction in the Weekly Frequency of Moderate and Severe HF From Baseline to Weeks 4, 8 and 12

The weekly HF frequency of moderate and severe HF was calculated as number of moderate and severe HF over the week. Moderate: Sensation of heat with sweating/dampness, but was able to continue activity. If at night, participant woke up because she was feeling hot and/or was sweating, but no action was necessary other than rearranging the bed sheets. Severe: Sensation of intense heat with sweating, causing disruption of activity. If at night, participant woke up hot and was sweating and needed to take action (e.g., removing layers of clothes, open the window, or get out of bed). Higher number of HF indicates worse symptoms.

Placebo

Week 12

40.0
percentage of participants
95% Confidence Interval: 24.82 to 55.18

Week 4

25.0
percentage of participants
95% Confidence Interval: 12.21 to 37.79

Week 8

46.3
percentage of participants
95% Confidence Interval: 31.08 to 61.61

Fezolinetant

Week 12

97.5
percentage of participants
95% Confidence Interval: 92.66 to 100.0

Week 4

87.8
percentage of participants
95% Confidence Interval: 77.79 to 97.82

Week 8

92.5
percentage of participants
95% Confidence Interval: 84.34 to 100.0

Change From Baseline in Hot Flash Related Daily Interference Scale (HFRDIS) Score at Weeks 4, 8 and 12

The HFRDIS was a 10-item scale which measured a woman's perceptions of the degree to which HF interfere with 9 daily life activities (work, social activities, leisure, sleep, mood, concentration, relations with others, sexuality, enjoying life); the 10th item measures interference with overall quality of life. This scale was modeled after items on the Brief Pain Inventory and Brief Fatigue Inventory both of which assessed the extent to which pain or fatigue interfere with daily life. Participants were asked to rate the extent to which HF had interfered with each item during the previous 4-week time interval using a 0 (do not interfere) to 10 (completely interfere) scale. Overall mean score was calculated as sum of items/number of available items. Higher score indicate a higher interference.

Placebo

Week 12: Concentration

-1.9
score on a scale (Mean)
Standard Deviation: 3.17

Week 12: Enjoyment of Life

-1.6
score on a scale (Mean)
Standard Deviation: 3.38

Week 12: Leisure Activities

-2.0
score on a scale (Mean)
Standard Deviation: 2.52

Week 12: Mood

-2.5
score on a scale (Mean)
Standard Deviation: 2.56

Week 12: Overall Mean Score

-2.05
score on a scale (Mean)
Standard Deviation: 2.326

Week 12: Overall Quality of Life

-1.6
score on a scale (Mean)
Standard Deviation: 3.05

Week 12: Relations With Others

-1.8
score on a scale (Mean)
Standard Deviation: 3.16

Week 12: Sexuality

-1.7
score on a scale (Mean)
Standard Deviation: 2.84

Week 12: Sleep

-3.3
score on a scale (Mean)
Standard Deviation: 3.01

Week 12: Social Activities

-1.8
score on a scale (Mean)
Standard Deviation: 2.51

Week 12: Work

-2.3
score on a scale (Mean)
Standard Deviation: 2.58

Week 4: Concentration

-1.6
score on a scale (Mean)
Standard Deviation: 2.68

Week 4: Enjoyment of Life

-1.6
score on a scale (Mean)
Standard Deviation: 2.86

Week 4: Leisure Activities

-1.6
score on a scale (Mean)
Standard Deviation: 2.63

Week 4: Mood

-2.3
score on a scale (Mean)
Standard Deviation: 2.49

Week 4: Overall Mean Score

-1.84
score on a scale (Mean)
Standard Deviation: 1.922

Week 4: Overall Quality of Life

-1.4
score on a scale (Mean)
Standard Deviation: 2.43

Week 4: Relations With Others

-2.1
score on a scale (Mean)
Standard Deviation: 2.93

Week 4: Sexuality

-1.9
score on a scale (Mean)
Standard Deviation: 2.88

Week 4: Sleep

-2.5
score on a scale (Mean)
Standard Deviation: 2.93

Week 4: Social Activities

-1.6
score on a scale (Mean)
Standard Deviation: 2.53

Week 4: Work

-1.7
score on a scale (Mean)
Standard Deviation: 2.93

Week 8: Concentration

-1.6
score on a scale (Mean)
Standard Deviation: 3.06

Week 8: Enjoyment of Life

-1.5
score on a scale (Mean)
Standard Deviation: 3.15

Week 8: Leisure Activities

-1.7
score on a scale (Mean)
Standard Deviation: 2.72

Week 8: Mood

-2.3
score on a scale (Mean)
Standard Deviation: 2.86

Week 8: Overall Mean Score

-1.98
score on a scale (Mean)
Standard Deviation: 2.439

Week 8: Overall Quality of Life

-1.5
score on a scale (Mean)
Standard Deviation: 3.01

Week 8: Relations With Others

-1.8
score on a scale (Mean)
Standard Deviation: 3.02

Week 8: Sexuality

-1.8
score on a scale (Mean)
Standard Deviation: 3.48

Week 8: Sleep

-3.2
score on a scale (Mean)
Standard Deviation: 3.29

Week 8: Social Activities

-1.9
score on a scale (Mean)
Standard Deviation: 2.85

Week 8: Work

-2.4
score on a scale (Mean)
Standard Deviation: 2.80

Fezolinetant

Week 12: Concentration

-4.0
score on a scale (Mean)
Standard Deviation: 2.47

Week 12: Enjoyment of Life

-3.7
score on a scale (Mean)
Standard Deviation: 2.42

Week 12: Leisure Activities

-3.8
score on a scale (Mean)
Standard Deviation: 3.08

Week 12: Mood

-4.3
score on a scale (Mean)
Standard Deviation: 2.64

Week 12: Overall Mean Score

-4.17
score on a scale (Mean)
Standard Deviation: 2.067

Week 12: Overall Quality of Life

-4.6
score on a scale (Mean)
Standard Deviation: 2.16

Week 12: Relations With Others

-3.3
score on a scale (Mean)
Standard Deviation: 2.67

Week 12: Sexuality

-3.4
score on a scale (Mean)
Standard Deviation: 3.86

Week 12: Sleep

-5.8
score on a scale (Mean)
Standard Deviation: 2.43

Week 12: Social Activities

-4.3
score on a scale (Mean)
Standard Deviation: 2.35

Week 12: Work

-4.6
score on a scale (Mean)
Standard Deviation: 2.68

Week 4: Concentration

-3.9
score on a scale (Mean)
Standard Deviation: 2.57

Week 4: Enjoyment of Life

-3.6
score on a scale (Mean)
Standard Deviation: 2.65

Week 4: Leisure Activities

-4.0
score on a scale (Mean)
Standard Deviation: 2.51

Week 4: Mood

-4.0
score on a scale (Mean)
Standard Deviation: 2.85

Week 4: Overall Mean Score

-3.97
score on a scale (Mean)
Standard Deviation: 2.141

Week 4: Overall Quality of Life

-3.8
score on a scale (Mean)
Standard Deviation: 2.87

Week 4: Relations With Others

-3.3
score on a scale (Mean)
Standard Deviation: 2.45

Week 4: Sexuality

-3.0
score on a scale (Mean)
Standard Deviation: 3.49

Week 4: Sleep

-5.2
score on a scale (Mean)
Standard Deviation: 2.77

Week 4: Social Activities

-4.3
score on a scale (Mean)
Standard Deviation: 2.48

Week 4: Work

-4.6
score on a scale (Mean)
Standard Deviation: 2.65

Week 8: Concentration

-4.1
score on a scale (Mean)
Standard Deviation: 2.59

Week 8: Enjoyment of Life

-3.9
score on a scale (Mean)
Standard Deviation: 2.59

Week 8: Leisure Activities

-4.2
score on a scale (Mean)
Standard Deviation: 2.50

Week 8: Mood

-4.4
score on a scale (Mean)
Standard Deviation: 2.84

Week 8: Overall Mean Score

-4.33
score on a scale (Mean)
Standard Deviation: 1.945

Week 8: Overall Quality of Life

-4.5
score on a scale (Mean)
Standard Deviation: 1.92

Week 8: Relations With Others

-3.5
score on a scale (Mean)
Standard Deviation: 2.70

Week 8: Sexuality

-3.2
score on a scale (Mean)
Standard Deviation: 3.76

Week 8: Sleep

-5.7
score on a scale (Mean)
Standard Deviation: 2.37

Week 8: Social Activities

-4.7
score on a scale (Mean)
Standard Deviation: 2.37

Week 8: Work

-5.0
score on a scale (Mean)
Standard Deviation: 2.38

Change From Baseline in Leeds Sleep Evaluation Questionnaire (LSEQ) at Weeks 4, 8 and 12

The LSEQ was a 10-item self-rated questionnaire which assessed participants aspects of sleep and early morning behavior. The questions were grouped into 4 chronological areas: the ease of getting to sleep, the perceived quality of sleep, the ease of awaking from sleep, and the integrity of early morning behavior following wakefulness. The LSEQ was a visual analogue scale which requires respondents to place marks on a group of 10 cm lines. representing the changes they have experienced in a variety of symptoms since the beginning of treatment. Lines extends between extremes like "more difficult than usual" and "easier than usual". Responses are measured using a 100-mm scale and are averaged to provide a score for each domain.

Placebo

Week 12: Awake Following Sleep

1.024
millimeter (mm) (Mean)
Standard Deviation: 2.6114

Week 12: Behavior Following Wakening

1.203
millimeter (mm) (Mean)
Standard Deviation: 2.5185

Week 12: Getting to Sleep

1.282
millimeter (mm) (Mean)
Standard Deviation: 1.7761

Week 12: Quality of Sleep

1.904
millimeter (mm) (Mean)
Standard Deviation: 2.7872

Week 4: Awake Following Sleep

0.642
millimeter (mm) (Mean)
Standard Deviation: 2.0739

Week 4: Behavior Following Wakening

1.173
millimeter (mm) (Mean)
Standard Deviation: 2.1743

Week 4: Getting to Sleep

1.017
millimeter (mm) (Mean)
Standard Deviation: 1.9195

Week 4: Quality of Sleep

2.145
millimeter (mm) (Mean)
Standard Deviation: 2.6443

Week 8: Awake Following Sleep

0.653
millimeter (mm) (Mean)
Standard Deviation: 2.5019

Week 8: Behavior Following Wakening

0.75
millimeter (mm) (Mean)
Standard Deviation: 2.6371

Week 8: Getting to Sleep

1.145
millimeter (mm) (Mean)
Standard Deviation: 1.7931

Week 8: Quality of Sleep

2.378
millimeter (mm) (Mean)
Standard Deviation: 2.8160

Fezolinetant

Week 12: Awake Following Sleep

2.887
millimeter (mm) (Mean)
Standard Deviation: 3.1333

Week 12: Behavior Following Wakening

2.233
millimeter (mm) (Mean)
Standard Deviation: 2.8190

Week 12: Getting to Sleep

2.094
millimeter (mm) (Mean)
Standard Deviation: 2.4419

Week 12: Quality of Sleep

4.385
millimeter (mm) (Mean)
Standard Deviation: 3.4477

Week 4: Awake Following Sleep

2.18
millimeter (mm) (Mean)
Standard Deviation: 3.0579

Week 4: Behavior Following Wakening

2.513
millimeter (mm) (Mean)
Standard Deviation: 2.7919

Week 4: Getting to Sleep

2.283
millimeter (mm) (Mean)
Standard Deviation: 2.7364

Week 4: Quality of Sleep

4.437
millimeter (mm) (Mean)
Standard Deviation: 4.0768

Week 8: Awake Following Sleep

2.92
millimeter (mm) (Mean)
Standard Deviation: 3.0219

Week 8: Behavior Following Wakening

2.539
millimeter (mm) (Mean)
Standard Deviation: 2.7742

Week 8: Getting to Sleep

2.248
millimeter (mm) (Mean)
Standard Deviation: 2.5233

Week 8: Quality of Sleep

4.703
millimeter (mm) (Mean)
Standard Deviation: 3.1971

Change From Baseline in Greene Climacteric Scale (GCS) at Weeks 4, 8 and 12

The GCS was a 21-item scale which provides a brief but comprehensive and valid measure of climacteric symptomatology. Each item was rated by the participant according to its severity using a four-point rating scale from 0 (none) to 3 (severe). The first 20 items of the scale combine into three main independent symptom measures: psychological symptoms (items 1 to 11; score 0 to 33), physical symptoms (items 12 to 18; score 0 to 21), and vasomotor symptoms (items 19 to 20; score 0 to 6), by summing up the individual item scores. Item 21 is a probe for sexual dysfunction (Loss of interest in sex). The total score ranges from 0 to 63. Higher scores indicate worse symptoms.

Placebo

Week 12: Loss of Interest in Sex

-0.4
score on a scale (Mean)
Standard Deviation: 0.75

Week 12: Physical

-2.4
score on a scale (Mean)
Standard Deviation: 3.80

Week 12: Psychological

-2.9
score on a scale (Mean)
Standard Deviation: 5.14

Week 12: Total Symptom Score

-6.3
score on a scale (Mean)
Standard Deviation: 8.87

Week 12: Vasomotor

-1.5
score on a scale (Mean)
Standard Deviation: 2.31

Week 4: Loss of Interest in Sex

-0.4
score on a scale (Mean)
Standard Deviation: 0.67

Week 4: Physical

-2.1
score on a scale (Mean)
Standard Deviation: 3.68

Week 4: Psychological

-2.3
score on a scale (Mean)
Standard Deviation: 5.22

Week 4: Total Symptom Score

-5.5
score on a scale (Mean)
Standard Deviation: 9.33

Week 4: Vasomotor

-1.1
score on a scale (Mean)
Standard Deviation: 1.79

Week 8: Loss of interest in Sex

-0.5
score on a scale (Mean)
Standard Deviation: 0.85

Week 8: Physical

-1.9
score on a scale (Mean)
Standard Deviation: 3.46

Week 8: Psychological

-2.6
score on a scale (Mean)
Standard Deviation: 5.31

Week 8: Total Symptom Score

-5.8
score on a scale (Mean)
Standard Deviation: 8.89

Week 8: Vasomotor

-1.7
score on a scale (Mean)
Standard Deviation: 2.23

Fezolinetant

Week 12: Loss of Interest in Sex

-0.6
score on a scale (Mean)
Standard Deviation: 1.14

Week 12: Physical

-1.9
score on a scale (Mean)
Standard Deviation: 3.32

Week 12: Psychological

-6.6
score on a scale (Mean)
Standard Deviation: 6.03

Week 12: Total Symptom Score

-13.1
score on a scale (Mean)
Standard Deviation: 10.04

Week 12: Vasomotor

-3.6
score on a scale (Mean)
Standard Deviation: 1.37

Week 4: Loss of Interest in Sex

-0.5
score on a scale (Mean)
Standard Deviation: 0.88

Week 4: Physical

-1.2
score on a scale (Mean)
Standard Deviation: 2.71

Week 4: Psychological

-5.3
score on a scale (Mean)
Standard Deviation: 5.97

Week 4: Total Symptom Score

-9.9
score on a scale (Mean)
Standard Deviation: 9.24

Week 4: Vasomotor

-3.3
score on a scale (Mean)
Standard Deviation: 1.83

Week 8: Loss of interest in Sex

-0.7
score on a scale (Mean)
Standard Deviation: 1.15

Week 8: Physical

-1.9
score on a scale (Mean)
Standard Deviation: 3.09

Week 8: Psychological

-6.7
score on a scale (Mean)
Standard Deviation: 6.49

Week 8: Total Symptom Score

-13.1
score on a scale (Mean)
Standard Deviation: 10.68

Week 8: Vasomotor

-3.6
score on a scale (Mean)
Standard Deviation: 1.48

Change From Baseline in Sheehan Disability Scale (SDS) at Weeks 4, 8 and 12

The SDS was a composite of 3 self-rated items designed to measure the extent to which 3 major sectors in a participant's life are impaired by panic, anxiety, phobic, or depressive symptoms. The participant rates the extent to which his/her 1- work/school, 2- social life, and 3- family life are impaired by his/her symptoms on a 10-point visual analog scale. The 3 items could be summed into a single dimensional measure of global functional impairment that ranges from 0 (unimpaired) to 30 (highly impaired).Higher scores indicate significant functional impairment.

Placebo

Week 12: Family Life/Home Responsibilities

-1.7
score on a scale (Mean)
Standard Deviation: 2.38

Week 12: Global Functional Impairment

-4.8
score on a scale (Mean)
Standard Deviation: 6.49

Week 12: Social Life

-1.5
score on a scale (Mean)
Standard Deviation: 2.55

Week 12: Work/School

-1.8
score on a scale (Mean)
Standard Deviation: 2.76

Week 4: Family Life/Home Responsibilities

-1.5
score on a scale (Mean)
Standard Deviation: 2.70

Week 4: Global Functional Impairment

-3.7
score on a scale (Mean)
Standard Deviation: 5.50

Week 4: Social Life

-1.2
score on a scale (Mean)
Standard Deviation: 2.35

Week 4: Work/School

-1.3
score on a scale (Mean)
Standard Deviation: 2.43

Week 8: Family Life/Home Responsibilities

-1.7
score on a scale (Mean)
Standard Deviation: 2.64

Week 8: Global Functional Impairment

-4.5
score on a scale (Mean)
Standard Deviation: 6.87

Week 8: Social Life

-1.3
score on a scale (Mean)
Standard Deviation: 2.57

Week 8: Work/School

-1.7
score on a scale (Mean)
Standard Deviation: 2.56

Fezolinetant

Week 12: Family Life/Home Responsibilities

-3.7
score on a scale (Mean)
Standard Deviation: 2.65

Week 12: Global Functional Impairment

-11.8
score on a scale (Mean)
Standard Deviation: 6.35

Week 12: Social Life

-3.6
score on a scale (Mean)
Standard Deviation: 2.51

Week 12: Work/School

-4.3
score on a scale (Mean)
Standard Deviation: 2.47

Week 4: Family Life/Home Responsibilities

-3.3
score on a scale (Mean)
Standard Deviation: 2.97

Week 4: Global Functional Impairment

-9.6
score on a scale (Mean)
Standard Deviation: 6.99

Week 4: Social Life

-3.3
score on a scale (Mean)
Standard Deviation: 2.60

Week 4: Work/School

-3.6
score on a scale (Mean)
Standard Deviation: 2.78

Week 8: Family Life/Home Responsibilities

-4.0
score on a scale (Mean)
Standard Deviation: 2.83

Week 8: Global Functional Impairment

-12.3
score on a scale (Mean)
Standard Deviation: 6.42

Week 8: Social Life

-3.8
score on a scale (Mean)
Standard Deviation: 2.79

Week 8: Work/School

-4.4
score on a scale (Mean)
Standard Deviation: 2.43

Change From Baseline in Sheehan Disability Scale (SDS) at Weeks 4, 8 and 12 (Days Lost and Days Unproductive)

The SDS was a composite of 3 self-rated items designed to measure the extent to which 3 major sectors in a participant's life are impaired by panic, anxiety, phobic, or depressive symptoms. The participant rates the extent to which his/her 1- work/school, 2- social life, and 3- family life are impaired by his/her symptoms. In addition to the 3 items, the participants were asked two questions Days Lost: On how many days in the last week did your symptoms cause you to miss school or work or leave you unable to carry out your normal daily responsibilities? Day Unproductive: On how many days in the last week did you feel so impaired by your symptoms, that even though you went to school or work, your productivity was reduced?

Placebo

Week 12: Days Lost

-0.2
days (Mean)
Standard Deviation: 1.18

Week 12: Days Unproductive

-1.4
days (Mean)
Standard Deviation: 2.82

Week 4: Days Lost

-0.2
days (Mean)
Standard Deviation: 1.27

Week 4: Days Unproductive

-0.8
days (Mean)
Standard Deviation: 2.83

Week 8: Days Lost

-0.3
days (Mean)
Standard Deviation: 0.81

Week 8: Days Unproductive

-1.2
days (Mean)
Standard Deviation: 3.10

Fezolinetant

Week 12: Days Lost

Week 12: Days Unproductive

-2.2
days (Mean)
Standard Deviation: 2.59

Week 4: Days Lost

Week 4: Days Unproductive

-1.7
days (Mean)
Standard Deviation: 2.67

Week 8: Days Lost

Week 8: Days Unproductive

-2.0
days (Mean)
Standard Deviation: 2.55

Change From Baseline in Plasma Concentration of Luteinizing Hormone (LH)

Change From baseline in plasma concentration of LH was reported.

Placebo

Week 12: 3 hours (h)

-7.16
international unit per liter (IU/L) (Mean)
Standard Deviation: 13.009

Week 12: Pre-dose

-4.61
international unit per liter (IU/L) (Mean)
Standard Deviation: 13.304

Week 15

-6.16
international unit per liter (IU/L) (Mean)
Standard Deviation: 14.197

Week 4: Pre-dose

-2.34
international unit per liter (IU/L) (Mean)
Standard Deviation: 9.350

Week 8: Pre-dose

-3.86
international unit per liter (IU/L) (Mean)
Standard Deviation: 9.838

Fezolinetant

Week 12: 3 hours (h)

-21.78
international unit per liter (IU/L) (Mean)
Standard Deviation: 11.923

Week 12: Pre-dose

-9.72
international unit per liter (IU/L) (Mean)
Standard Deviation: 12.834

Week 15

-3.33
international unit per liter (IU/L) (Mean)
Standard Deviation: 11.742

Week 4: Pre-dose

-8.84
international unit per liter (IU/L) (Mean)
Standard Deviation: 10.865

Week 8: Pre-dose

-9.46
international unit per liter (IU/L) (Mean)
Standard Deviation: 13.647

Change From Baseline in Plasma Concentration of Follicle-Stimulating Hormone (FSH)

Change From baseline in plasma concentration of FSH was reported.

Placebo

Week 12: 3h

-8.47
IU/L (Mean)
Standard Deviation: 19.159

Week 12: Pre-dose

-7.05
IU/L (Mean)
Standard Deviation: 19.978

Week 15

-6.5
IU/L (Mean)
Standard Deviation: 21.011

Week 4: Pre-dose

-5.8
IU/L (Mean)
Standard Deviation: 19.430

Week 8: Pre-dose

-6.6
IU/L (Mean)
Standard Deviation: 20.086

Fezolinetant

Week 12: 3h

-19.48
IU/L (Mean)
Standard Deviation: 22.734

Week 12: Pre-dose

-10.51
IU/L (Mean)
Standard Deviation: 24.521

Week 15

-6.97
IU/L (Mean)
Standard Deviation: 22.273

Week 4: Pre-dose

-3.44
IU/L (Mean)
Standard Deviation: 18.026

Week 8: Pre-dose

-10.36
IU/L (Mean)
Standard Deviation: 23.943

Change From Baseline in Plasma Concentration of Estradiol (E2)

Change From baseline in plasma concentration of E2 was reported.

Placebo

Week 12: 3h

26.0
Picomoles per liter (pmol/L) (Mean)
Standard Deviation: 100.33

Week 12: Pre-dose

32.3
Picomoles per liter (pmol/L) (Mean)
Standard Deviation: 101.87

Week 15

37.0
Picomoles per liter (pmol/L) (Mean)
Standard Deviation: 167.37

Week 4: Pre-dose

18.4
Picomoles per liter (pmol/L) (Mean)
Standard Deviation: 140.36

Week 8: Pre-dose

26.0
Picomoles per liter (pmol/L) (Mean)
Standard Deviation: 157.18

Fezolinetant

Week 12: 3h

11.5
Picomoles per liter (pmol/L) (Mean)
Standard Deviation: 77.68

Week 12: Pre-dose

25.5
Picomoles per liter (pmol/L) (Mean)
Standard Deviation: 108.27

Week 15

27.9
Picomoles per liter (pmol/L) (Mean)
Standard Deviation: 188.18

Week 4: Pre-dose

-7.3
Picomoles per liter (pmol/L) (Mean)
Standard Deviation: 75.13

Week 8: Pre-dose

1.0
Picomoles per liter (pmol/L) (Mean)
Standard Deviation: 71.78

Change From Baseline in Plasma Concentration of Sex Hormone-Binding Globulin (SHBG)

Change From baseline in plasma concentration of SHBG was reported.

Placebo

Week 12: 3h

1.56
Nanomoles per liter (nmol/L) (Mean)
Standard Deviation: 18.658

Week 12: Pre-dose

1.75
Nanomoles per liter (nmol/L) (Mean)
Standard Deviation: 18.090

Week 15

1.92
Nanomoles per liter (nmol/L) (Mean)
Standard Deviation: 16.341

Week 4: Pre-dose

0.61
Nanomoles per liter (nmol/L) (Mean)
Standard Deviation: 16.260

Week 8: Pre-dose

5.1
Nanomoles per liter (nmol/L) (Mean)
Standard Deviation: 20.713

Fezolinetant

Week 12: 3h

-1.49
Nanomoles per liter (nmol/L) (Mean)
Standard Deviation: 16.406

Week 12: Pre-dose

0.36
Nanomoles per liter (nmol/L) (Mean)
Standard Deviation: 15.165

Week 15

-0.86
Nanomoles per liter (nmol/L) (Mean)
Standard Deviation: 13.540

Week 4: Pre-dose

-0.47
Nanomoles per liter (nmol/L) (Mean)
Standard Deviation: 11.986

Week 8: Pre-dose

-1.37
Nanomoles per liter (nmol/L) (Mean)
Standard Deviation: 12.186

Change From Baseline in Plasma Concentration of Leptin

Change From baseline in plasma concentration of leptin was reported.

Placebo

Week 12: 3h

-2.0755
nanogram per liter (ng/mL) (Mean)
Standard Deviation: 5.3193

Week 12: Pre-dose

0.9668
nanogram per liter (ng/mL) (Mean)
Standard Deviation: 5.4301

Week 15

-0.9914
nanogram per liter (ng/mL) (Mean)
Standard Deviation: 14.6660

Week 4: Pre-dose

1.2436
nanogram per liter (ng/mL) (Mean)
Standard Deviation: 5.6269

Week 8: Pre-dose

1.6225
nanogram per liter (ng/mL) (Mean)
Standard Deviation: 7.5029

Fezolinetant

Week 12: 3h

-4.2085
nanogram per liter (ng/mL) (Mean)
Standard Deviation: 8.5335

Week 12: Pre-dose

-0.4183
nanogram per liter (ng/mL) (Mean)
Standard Deviation: 11.0737

Week 15

-0.6031
nanogram per liter (ng/mL) (Mean)
Standard Deviation: 8.2519

Week 4: Pre-dose

-2.2185
nanogram per liter (ng/mL) (Mean)
Standard Deviation: 6.9522

Week 8: Pre-dose

-1.709
nanogram per liter (ng/mL) (Mean)
Standard Deviation: 6.9716

Change From Baseline in Plasma Concentration of Insulin

Change From baseline in plasma concentration of insulin was reported.

Placebo

Week 12: 3h

16.3225
micro units per milliliter (μU/mL) (Mean)
Standard Deviation: 19.0210

Week 12: Pre-dose

-0.0825
micro units per milliliter (μU/mL) (Mean)
Standard Deviation: 3.1593

Week 15

0.3256
micro units per milliliter (μU/mL) (Mean)
Standard Deviation: 4.1132

Week 4: Pre-dose

-0.2767
micro units per milliliter (μU/mL) (Mean)
Standard Deviation: 3.0971

Week 8: Pre-dose

0.3525
micro units per milliliter (μU/mL) (Mean)
Standard Deviation: 4.0903

Fezolinetant

Week 12: 3h

14.495
micro units per milliliter (μU/mL) (Mean)
Standard Deviation: 19.2787

Week 12: Pre-dose

0.13
micro units per milliliter (μU/mL) (Mean)
Standard Deviation: 4.7942

Week 15

-0.1595
micro units per milliliter (μU/mL) (Mean)
Standard Deviation: 3.1071

Week 4: Pre-dose

-0.7512
micro units per milliliter (μU/mL) (Mean)
Standard Deviation: 3.8798

Week 8: Pre-dose

-0.5325
micro units per milliliter (μU/mL) (Mean)
Standard Deviation: 3.6121

Change From Baseline in Plasma Concentration of C-peptide

Change From baseline in plasma concentration of C-peptide was reported.

Placebo

Week 12: 3h

2.1325
ng/mL (Mean)
Standard Deviation: 1.9976

Week 12: Pre-dose

-0.075
ng/mL (Mean)
Standard Deviation: 0.5212

Week 15

-0.0047
ng/mL (Mean)
Standard Deviation: 0.6102

Week 4: Pre-dose

-0.0465
ng/mL (Mean)
Standard Deviation: 0.3978

Week 8: Pre-dose

-0.03
ng/mL (Mean)
Standard Deviation: 0.5273

Fezolinetant

Week 12: 3h

2.2875
ng/mL (Mean)
Standard Deviation: 2.1811

Week 12: Pre-dose

-0.0425
ng/mL (Mean)
Standard Deviation: 0.7154

Week 15

-0.0095
ng/mL (Mean)
Standard Deviation: 0.4023

Week 4: Pre-dose

-0.1463
ng/mL (Mean)
Standard Deviation: 0.5134

Week 8: Pre-dose

-0.1175
ng/mL (Mean)
Standard Deviation: 0.4750

Change From Baseline in Plasma Concentration of Glycated Hemoglobin (HBA1c)

Change From baseline in plasma concentration of HBA1C was reported.

Placebo

-0.0005
Percentage of HBA1c (Mean)
Standard Deviation: 0.003162278

Fezolinetant

-0.002307692
Percentage of HBA1c (Mean)
Standard Deviation: 0.004845800

Number of Participants With Adverse Events (AE's)

An AE is any untoward medical occurrence in a participant administered a study drug, & which does not necessarily have to have a causal relationship with treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom or disease temporally associated with use of a medicinal product (mp) whether or not considered related to the mp. An AE is considered "serious" if it results in death, is life-threatening, results in persistent or significant disability/incapacity or substantial disruption of the ability to conduct normal life functions, results in congenital anomaly or birth defect, requires inparticipant hospitalization or leads to prolongation of hospitalization, hospitalization for treatment/observation/examination caused by AE is to be considered as serious, discontinuation due to increases in liver enzymes, other medically important events. TEAE was defined as an AE observed from first dose date up to end of study.

Placebo

At least one serious TEAE

1.0
participants

At least one severe TEAE

At least one TEAE

35.0
participants

At least one TEAE for which the study treatment was permanently stopped

At least one TEAE leading to death

At least one TEAE that was considered treatment related

11.0
participants

Fezolinetant

At least one serious TEAE

At least one severe TEAE

At least one TEAE

29.0
participants

At least one TEAE for which the study treatment was permanently stopped

2.0
participants

At least one TEAE leading to death

At least one TEAE that was considered treatment related

13.0
participants

Change From Baseline in Plasma Concentration of Bone Alkaline Phosphatase (BALP) at Week 12

Change from baseline in plasma concentration of BALP was reported.

Placebo

2.9
microgram per milliliter (ug/mL) (Mean)
Standard Deviation: 5.43

Fezolinetant

1.7
microgram per milliliter (ug/mL) (Mean)
Standard Deviation: 3.19

Percentage of Participants With >=90% Reduction in the Weekly Frequency of Moderate and Severe HF From Baseline to Weeks 4, 8 and 12

The weekly HF frequency of moderate and severe HF was calculated as number of moderate and severe HF over the week. Moderate: Sensation of heat with sweating/dampness, but was able to continue activity. If at night, participant woke up because she was feeling hot and/or was sweating, but no action was necessary other than rearranging the bed sheets. Severe: Sensation of intense heat with sweating, causing disruption of activity. If at night, participant woke up hot and was sweating and needed to take action (e.g., removing layers of clothes, open the window, or get out of bed). Higher number of HF indicates worse symptoms.

Placebo

Week 12

20.0
percentage of participants
95% Confidence Interval: 7.6 to 32.4

Week 4

6.8
percentage of participants
95% Confidence Interval: 0.0 to 14.27

Week 8

24.4
percentage of participants
95% Confidence Interval: 11.25 to 37.54

Fezolinetant

Week 12

72.5
percentage of participants
95% Confidence Interval: 58.66 to 86.34

Week 4

68.3
percentage of participants
95% Confidence Interval: 54.05 to 82.54

Week 8

67.5
percentage of participants
95% Confidence Interval: 52.99 to 82.01

Change From Baseline in Plasma Concentration of Carboxy-terminal Telopeptide of Type I Collagen (CTX) at Week 12

Change from baseline in plasma concentration of CTX was reported.

Placebo

-0.021
ug/mL (Mean)
Standard Deviation: 0.1278

Fezolinetant

0.001
ug/mL (Mean)
Standard Deviation: 0.1356

Total

87
Participants

Age, Continuous

53.5
Years (Mean)
Standard Deviation: 4.12

Weekly General Hot Flash Score

27.24
Score on a scale (Mean)
Standard Deviation: 11.93

Ethnicity (NIH/OMB)

Race (NIH/OMB)

Sex: Female, Male

Overall Study

Placebo

Fezolinetant

Drop/Withdrawal Reasons

Placebo

Fezolinetant