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This is a Phase 2, single center, single-dose, double-blind, placebo-controlled, 2-way crossover study to evaluate the safety and efficacy of SST-6007 in women with FSAD. A sufficient number of participants will be enrolled to yield 30 (approximately 15 pre-menopausal and 15 post-menopausal) participants to complete the SST-6007/Placebo Double-Blind, Dosing Phase of the study (Visit 2 and Visit 3).
Full description
Participants will first complete a telephone screen (< 28 days prior to Visit 1, Medical Screening) and will be scheduled for Visit 1 if eligible. After consent is obtained, study participants will undergo Visit 1 at a local gynecology clinic to determine their eligibility for continued study participation.
If the participant meets all of the inclusion criteria and none of the exclusion criteria, they will be scheduled for Visit 2 and Visit 3 of the SST-6007/Placebo Double-Blind, Dosing Phase to be conducted at the Sexual Psychophysiology Laboratory at the University of Texas at Austin. Visit 2 must be within 5 (±2) days of Visit 1. One visit will evaluate the participant's response to SST-6007 and the other will evaluate the participant's response to placebo cream, using the VPP, the Arousometer, and neutral-erotic film presentations. The sequence of dosing will be randomly assigned (i.e., placebo cream then SST-6007 or SST-6007 then placebo cream) according to a computer-generated, randomization. There will be a 4-8 day washout period between Visits 2 and 3.
During each experimental session, physiological and subjective sexual arousal will be assessed simultaneously and continuously using the VPP and the Arousometer. Electrical activity of the heart will be assessed with an ECG. ECG data will be used to process the VPA data. Immediately following completion of each erotic film, subjective sexual arousal, subjective perception of genital arousal, and positive and negative affect will be evaluated using a self-report 7-point Likert Scale (Film Scale) and the Positive and Negative Affect Schedule (PANAS).
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Inclusion criteria
Post-menopausal women (surgically induced or natural) must meet 1 of the following criteria:
Post-menopausal participants, who are not on any hormone replacement therapies (HRT), must have a serum follicle-stimulating hormone (FSH) lab result >40mIU/mL.
Women of childbearing potential must agree to continue using an appropriate form of birth control from Visit 1 through 7 days following the completion of Visit 3. Acceptable forms of birth control include the use of an IUD or hormonal therapy (oral, patch, etc.). Contraceptive foams/gels or condoms are not considered acceptable methods of birth control in this study. Participants must be on a stable dose for at least 6 months prior to Visit 1.
Participant has a body mass index (BMI) from 18 to 30 kg/m², inclusive.
Participant is heterosexual.
Participant has a normal electrocardiogram at Visit 1.
Participant is capable of understanding and complying with the protocol and agrees to sign the informed consent document.
Participant must agree to not use vaginal or vulvar lubricants, spermicides, creams or gels, contraceptive foams or vaginal douche products from Visit 1 until the completion of Visit 3 9 Participant agrees to not engage in strenuous, unaccustomed exercise within 6 hours of visit 2 or visit 3.
Exclusion criteria
8 Participant has a history of orthostatic hypotension or orthostatic hypotension which is present at Visit 1, defined as a drop in systolic blood pressure ≥ 20 mm Hg, a drop in diastolic blood pressure ≥ 10 mm Hg or experiencing lightheadedness or dizziness at 1 or 3 minutes after the change in position from supine to standing.
Participant has primary anorgasmia, vaginismus, or sexual aversion disorder.
Participant has dyspareunia.
Participant has type 1 or type 2 diabetes.
Participant has undergone major pelvic surgery that may have caused nerve damage, including, vulvectomy, colostomy, cystostomy, or serious bladder, rectal, or abdominal surgery; neurological impairment due to diabetes, stroke, pelvic nerve damage secondary to trauma, cancer treatments, myasthenia gravis, multiple sclerosis or spinal cord damage.
Participant has current and/or previous reported diagnoses of DSM-IV-TR axis I disorders including organic mental syndromes and disorders (e.g., schizophrenia, bipolar disorder, depression).
Participant has a history of cancer, other than basal cell carcinoma.
Participant has any surgical or medical condition that may interfere with the absorption, distribution, metabolism, or excretion of the test article in the opinion of the Sub-Investigator.
Participant has a history of non-arteritic ischemic optic neuropathy (NAION).
Participant has positive findings from the urine drug screen (e.g., amphetamines, barbiturates, benzodiazepines, cannabinoids, cocaine, methadone, and opiates).
Participant has positive serologic findings for sexually transmitted infection (syphilis, gonorrhea, chlamydia), human immunodeficiency virus (HIV) antibodies, hepatitis B surface antigen (HBsAg), or hepatitis C virus (HCV) antibodies.
Participant has moderate to severe current vaginitis, a vaginal infection including bacterial vaginosis or a yeast infection. The diagnosis of yeast infections should be made by the Sub-Investigator based on the physical and gynecological exams; the objective is to exclude women that are symptomatic. If the woman is not complaining of symptoms but the Sub-Investigator observes discharge, than the vaginal wet mount test should also be performed to confirm a diagnosis of yeast infection.
Primary purpose
Allocation
Interventional model
Masking
31 participants in 2 patient groups, including a placebo group
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Data sourced from clinicaltrials.gov
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