Sexual Dysfunctions, Psychological
Conditions
Brief summary
This trial is designed to assess the safety and efficacy of flibanserin in the treatment of premenopausal women with Hypoactive Sexual Desire Disorder (HSDD) that meet standard diagnostic criteria. Efficacy for flibanserin will be assessed vs. a parallel placebo group.
Interventions
DRUGflibanserin
Experimental: flibanserin 25 mg b.i.d
DRUGplacebo
placebo
Sponsors
Sprout Pharmaceuticals, Inc
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 50 Years
Healthy volunteers
No
Inclusion criteria
1. Women who are 18 years of age and older. 2. Premenopausal women having regular menstrual periods who have HSDD (decreased sexual desire), generalized acquired type, according to DSM IV-TR criteria. 3. Patient must meet minimum cut-off scores on questionnaires relating to sexual functioning and sexual distress. 4. Patients must be willing to try to have sexual activity (e.g., any act involving direct genital stimulation) at least once monthly. 5. Patients must be willing and able to use an electronic diary on a daily basis (e.g., have access to a working land line telephone for daily data transmissions). 6. At the Baseline Visit, patients must have complied with eDiary use adequately. 7. Patients must be in a stable, monogamous, heterosexual relationship that is secure and communicative, for at least 1 year prior to the Screen Visit. The partner is expected to be physically present at least 50% of each month. 8. Patients must have used a medically acceptable method of contraception for at least 3 months before the Baseline Visit (Visit 2) and continue to use that medically acceptable method of contraception during the trial. 9. In the investigators opinion, patients must be reliable, honest, compliant, and agree to co-operate with all trial evaluations as well as to be able to perform them. 10. Patients must be able and willing to give meaningful, written informed consent prior to participation in the trial, in accordance with regulatory requirements. Patients must have sufficient understanding to communicate effectively with the investigator, and be willing to discuss their sexual functioning with the investigative staff. 11. Patients must have a clinically acceptable Pap smear as read by a cytology facility (no evidence of malignancy or squamous intraepithelial lesions) within 6 months before the Screen Visit.
Exclusion criteria
1. Patients who have taken any medication noted in the protocols List of Prohibited Medications within 30 days before screening. 2. Patients whose sexual function was affected (enhanced or worsened) in the investigators opinion by any medication within 30 days before the Screen Visit and anytime prior to the Baseline Visit. 3. Patients with a history of drug dependence or abuse within the past one year. 4. Patients with a history of multiple severe reactions (i.e., allergic or oversensitivity to usual doses) to drugs that affect the brain. 5. Patients with a history of participation in a trial of another investigational medication within one month prior to the Screen Visit, or participation in any previous clinical trial of flibanserin. 6. Patients who meet accepted diagnostic criteria for sexual disorders that would interfere with improvement in HSDD (sexual aversion, substance-induced sexual problems, urge to live as a man, etc. 7. Patients who indicate that their sexual partner has inadequately treated sexual problems that could interfere with the patients response to treatment. 8. Patients who have entered the menopausal transition or menopause or have had a hysterectomy. 9. Patients with findings at the Screen Visit of infection, inflammation, undue tenderness, or shrinkage (atrophy) of the female organs. 10. Patients who are breast feeding or have breastfed within the last 6 months prior to the Baseline Visit. 11. Patients who are pregnant or have been pregnant within the last 6 months prior to the Baseline Visit.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Mean Change From Baseline to 24 Weeks in the Frequency of Satisfying Sexual Events as Measured by the eDiary. | 24 weeks | A small personal handheld electronic device (eDiary) was used by the patients to record information about sexual events. Patients were instructed to complete the eDiary every morning. When completing an eDiary entry, patients answered questions regarding their sexual events since their last eDiary entry. If patients missed or were late with their eDiary entry, they entered information about their sexual events covering a maximum time period of the past 7 days; however, they did not enter any information beyond the last entry. |
| Change From Baseline to 24 Weeks in Responses to the eDiary Daily Desire Question. | baseline to 24 weeks | Change from baseline in the electronic diary (eDiary) Sexual Desire Monthly Total Score standardized to a 28-day period (total score range 0-84). Change from baseline is calculated as the difference between the four week baseline period and Week 21 to Week 24. Patients were asked to record information daily in the eDiary throughout the trial. Every time the eDiary was completed, a desire question was asked. If a patient did not complete the diary on a given day, the patient was not asked to enter desire information for more than a 24-hour retrospective period. The desire item read Indicate your most intense level of sexual desire in the last 24 hours / since your last visit. Potential responses included no, low, moderate, or strong and was scored 0-3, with 0 indicating no desire and 3 indicating the highest level of desire: 0 = No desire 1. = Low desire 2. = Moderate desire 3. = Strong desire |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Flibanserin 25 mg b.i.d 25 mg twice daily for 24 weeks
flibanserin: Experimental: flibanserin 25 mg b.i.d | 337 |
| Flibanserin 50mg Qhs 50 mg taken once daily at bedtime for 24 weeks
flibanserin: Experimental: flibanserin 50mg qhs | 363 |
| Flibanserin 50mg b.i.d. 50 mg twice daily for 24 weeks
flibanserin: Experimental: flibanserin 50mg b.i.d. | 336 |
| Placebo twice daily for 24 weeks
placebo: placebo | 349 |
| Total | 1,385 |
Baseline characteristics
| Characteristic | Flibanserin 25 mg b.i.d | Flibanserin 50mg Qhs | Flibanserin 50mg b.i.d. | Placebo | Total |
|---|---|---|---|---|---|
| Age, Customized 18-34 years | 154 participants | 169 participants | 145 participants | 158 participants | 626 participants |
| Age, Customized 35-44 years | 153 participants | 157 participants | 161 participants | 164 participants | 635 participants |
| Age, Customized 45 years and older | 30 participants | 37 participants | 30 participants | 27 participants | 124 participants |
| Race/Ethnicity, Customized Asian Hispanic | 0 participants | 0 participants | 0 participants | 0 participants | 0 participants |
| Race/Ethnicity, Customized Asian Non Hispanic | 6 participants | 6 participants | 7 participants | 3 participants | 22 participants |
| Race/Ethnicity, Customized Black Hispanic | 2 participants | 0 participants | 1 participants | 2 participants | 5 participants |
| Race/Ethnicity, Customized Black Non Hispanic | 43 participants | 31 participants | 28 participants | 47 participants | 149 participants |
| Race/Ethnicity, Customized Missing | 0 participants | 0 participants | 1 participants | 0 participants | 1 participants |
| Race/Ethnicity, Customized White Hispanic | 20 participants | 20 participants | 23 participants | 19 participants | 82 participants |
| Race/Ethnicity, Customized White Non Hispanic | 266 participants | 306 participants | 276 participants | 278 participants | 1126 participants |
| Sex: Female, Male Female | 337 Participants | 363 Participants | 336 Participants | 349 Participants | 1385 Participants |
| Sex: Female, Male Male | 0 Participants | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk | EG003 affected / at risk |
|---|---|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — | — / — | — / — |
| other Total, other adverse events | 107 / 337 | 126 / 363 | 243 / 336 | 78 / 349 |
| serious Total, serious adverse events | 1 / 337 | 3 / 363 | 1 / 336 | 1 / 349 |
Outcome results
Primary
Change From Baseline to 24 Weeks in Responses to the eDiary Daily Desire Question.
Change from baseline in the electronic diary (eDiary) Sexual Desire Monthly Total Score standardized to a 28-day period (total score range 0-84). Change from baseline is calculated as the difference between the four week baseline period and Week 21 to Week 24. Patients were asked to record information daily in the eDiary throughout the trial. Every time the eDiary was completed, a desire question was asked. If a patient did not complete the diary on a given day, the patient was not asked to enter desire information for more than a 24-hour retrospective period. The desire item read Indicate your most intense level of sexual desire in the last 24 hours / since your last visit. Potential responses included no, low, moderate, or strong and was scored 0-3, with 0 indicating no desire and 3 indicating the highest level of desire: 0 = No desire 1. = Low desire 2. = Moderate desire 3. = Strong desire
Time frame: baseline to 24 weeks
Population: The Full Analysis Set (FAS) consisted of those patients who were randomized to a treatment group, received at least one dose of study medication, and had at least one on-treatment efficacy assessment. The FAS was analyzed for efficacy.
| Arm | Measure | Value (LEAST_SQUARES_MEAN) | Dispersion |
|---|---|---|---|
| Flibanserin 25 mg b.i.d | Change From Baseline to 24 Weeks in Responses to the eDiary Daily Desire Question. | 8.8 units on a scale | Standard Error 0.9 |
| Flibanserin 50mg Qhs | Change From Baseline to 24 Weeks in Responses to the eDiary Daily Desire Question. | 7.0 units on a scale | Standard Error 0.9 |
| Flibanserin 50mg b.i.d. | Change From Baseline to 24 Weeks in Responses to the eDiary Daily Desire Question. | 7.7 units on a scale | Standard Error 0.9 |
| Placebo | Change From Baseline to 24 Weeks in Responses to the eDiary Daily Desire Question. | 7.5 units on a scale | Standard Error 0.9 |
Primary
Mean Change From Baseline to 24 Weeks in the Frequency of Satisfying Sexual Events as Measured by the eDiary.
A small personal handheld electronic device (eDiary) was used by the patients to record information about sexual events. Patients were instructed to complete the eDiary every morning. When completing an eDiary entry, patients answered questions regarding their sexual events since their last eDiary entry. If patients missed or were late with their eDiary entry, they entered information about their sexual events covering a maximum time period of the past 7 days; however, they did not enter any information beyond the last entry.
Time frame: 24 weeks
Population: The Full Analysis Set (FAS) consisted of those patients who were randomized to a treatment group, received at least one dose of study medication, and had at least one on-treatment efficacy assessment. The FAS was analyzed for efficacy.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Flibanserin 25 mg b.i.d | Mean Change From Baseline to 24 Weeks in the Frequency of Satisfying Sexual Events as Measured by the eDiary. | 1.5 SSEs per week | Standard Deviation 3.4 |
| Flibanserin 50mg Qhs | Mean Change From Baseline to 24 Weeks in the Frequency of Satisfying Sexual Events as Measured by the eDiary. | 1.6 SSEs per week | Standard Deviation 4.2 |
| Flibanserin 50mg b.i.d. | Mean Change From Baseline to 24 Weeks in the Frequency of Satisfying Sexual Events as Measured by the eDiary. | 1.6 SSEs per week | Standard Deviation 3.5 |
| Placebo | Mean Change From Baseline to 24 Weeks in the Frequency of Satisfying Sexual Events as Measured by the eDiary. | 1.6 SSEs per week | Standard Deviation 4.3 |