24-week Placebo-controlled Trial of Flibanserin Once Daily in Premenopausal Women With Hypoactive Sexual Desire Disorder

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 (eDiary) 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.

12. Patients with a history of Major Depressive Disorder within 6 months prior the Screen
   Visit, a score indicating depression on a depression scale, a history of suicide
   attempt, or current suicidal ideation evident at the Screen or Baseline Visit.

13. Patients with a history of any other psychiatric disorders that could impact sexual
   function, risks patients safety, or may impact compliance.