ClinicalTrials.gg
RecruitingNCT06116045Updated Oct 22, 2024

Evaluation of the Efficacy, Safety and Tolerability of BZ371A in Women with Sexual Arousal Disorder

A Phase 2 interventional study of BZ371A 7.5 mg (1.5 ml) and BZ371A 5.0 mg (1.0 ml) in Female Sexual Arousal Disorder and Female Sexual Dysfunction, sponsored by Biozeus Biopharmaceutical S.A.. Recruiting at 1 site in Brazil. Open to female participants aged 21 Years to 60 Years. Per ClinicalTrials.gov, last updated 2024-10-22.

Sponsored by Biozeus Biopharmaceutical S.A. · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Feb 2025, 1 year 9 months ago, but the record still lists the study as recruiting.
  • Started Oct 2024; still recruiting 2 years 1 month later.
Phase
Phase 2
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
21 Years to 60 Years
Sex
Female
01

Study summary

To determine the efficacy in increasing sexual arousal, safety and tolerability of BZ371A in gel form applied to women with sexual arousal disorder.

Read the detailed description

FSAD is defined as the recurrent inability to attain or maintain sufficient genital arousal during sexual activity. Therefore, a healthy blood flow is central to the physiological processes related to sexual arousal, leading to genital lubrication, warmth, and clitoral protrusion.

The vasculature and blood flow in vaginal tissue can be compromised due to natural aging and various risk factors, including cigarette smoking, alcohol abuse, lack of exercise, high-fat diets, hypertension, hypercholesterolemia, and diabetes mellitus. All these risk factors and conditions are highly prevalent among women and can lead to FSAD. BZ371A offers a potential solution by increasing blood flow in genital tissue through its unique mechanism of action, thereby restoring vascular homeostasis and the physiological processes related to sexual arousal in women.

02

Conditions studied

  • Female Sexual Arousal Disorder
  • Female Sexual Dysfunction

Keywords

  • Female
  • Sexual arousal disorder
  • Sexual dysfunction
  • FSFI questionnaire
  • Nitric Oxide
  • Topic
03

In context

Sexual Dysfunctions, Psychological

138 studies on the registry are indexed under Sexual Dysfunctions, Psychological; 10 are open to participants now.

This study's planned enrollment of 30 is below the median of 100 across 114 interventional studies indexed under Sexual Dysfunctions, Psychological.

Browse Sexual Dysfunctions, Psychological studies →

Lead sponsor

Biozeus Biopharmaceutical S.A. is the lead sponsor of 5 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years to 60 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Women between the ages 21 and 60;
  • Pre-menopausal or women may be included;
  • May or may not be taking female sex hormones (estrogen with or without progesterone, or their derivatives);
  • FSAD, defined as the inability, persistent or recurrent, to obtain or maintain until the conclusion of sexual activity an adequate genital response to sexual arousal (lubrication, warmth and enlargement of the clitoris);
  • Women with FSAD who present marked suffering or interpersonal difficulties;
  • Stable relationship for more than 6 months, with a sexually active partner;
  • Ability to read and understand the Form (ICF) and to answer the questionnaires.

Exclusion criteria

Exclusion Criteria:

  • Women who do not agree to use a method and who have the capacity to become pregnant during the study;
  • Women who do not agree to attempt sexual activity at least twice a week while taking the study medication;
  • History of unresolved sexual trauma or abuse;
  • Diagnosis of vaginismus, genitopelvic pain/penetration disorder and/or sexual aversion disorder;
  • Uncontrolled diabetes at screening visit ( > 10%);
  • Prior spinal cord injury, with lower limb paralysis;
  • History of abdominal or pelvic surgery that may have damaged pelvic nerves, including vulvectomy, colostomy, cytostomy, hysterectomy, or bladder suspension.
  • Current testosterone use, or long-term testosterone use (such as chip) within the past 6 months;
  • Presence of menstrual irregularity or endocrinopathies that significantly alter the menstrual cycle, preventing Cytocam analyses from taking place at the same time;
  • Patients with current depression, characterized by the use or need for use of psychotropic drugs, including bupropion, lithium, or neuroleptics;
  • Presence of genital lesions that impair analysis of local adverse effects on the genitalia;
  • Presence of diseases that cause excessive vaginal discharge, such as recurrent urinary tract infection, vaginal infection and pelvic inflammatory disease.
  • Abnormal Papanicolaou test within the past 3 years;
  • History of gynecological cancer (history of uterine dysplasia can be included, provided it has been properly treated for at least 6 months);
  • History of pelvic irradiation;
  • Use of topical medications in the genital region that may interfere with PSI assessment as well as their absorption or drug interaction, including vaginal estrogens, lubricants, spermicides, creams or gels, vaginal douches;
  • History of symptomatic hypotension, or diseases that increase the risk of symptomatic hypotension, such as patient with heart disease (including history of angina and/or heart failure) and nephropathies;
  • Current use of nitrates, such as propatylnitrate (Sustrate®), isosorbide (Monocordil®, Cincordil®, Isordil®), nitroglycerin (Nitradisc®, Nitroderm TTS®, Nitronal®, Tridil®) and sosorbitol dinitrate (Isocord®)
  • findings that are clinically symptomatic, or that, in the Investigator's judgment, are considered significant and pose a risk to the research volunteer's participation;
  • Findings on laboratory tests that, in the Investigator's judgment, are considered significant and offer risk to the research volunteer's participation or may hinder the study analyses;
  • TSH outside normal limits for age (participants with hypothyroidism on stable dose of medication, over 3 months, may be included);
  • BP outside safe limits: SBP below 90 mmHg or above 170 mmHg; or DBP below 50 mmHg or above 100 mmHg, except for situations such as "white coat" syndrome
  • Severe hypertension, considered as use of three or more antihypertensives;
  • Diseases that can cause clitoral priapism, such as sickle cell anemia, multiple myeloma or leukemia;
  • History of clitoral priapism;
  • Current relevant diarrhea, defined as duration over four weeks, association with abdominal pain or malabsorptive syndrome, or presence of mucus, pus, or blood in the stool;
  • Pregnant or lactating;
  • Current use of nitric oxide donors, guanylate cyclase stimulators (e.g. Riociguat), or 5- phosphodiesterase inhibitors (Sildenafil, Tadalafil, etc.);
  • Any disease or condition or physical finding that the Investigator considers significant and that increases the risk of the research participant's participation or may interfere with the results, including serious debilitating diseases, presence of cancer, serious mental illness, persistent abuse of medication.
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    Group A - BZ371A, then Placebo

    Participants will first receive topical BZ371A 7.5 mg for daily use for 2 weeks. After a washout period of 2 weeks, they will receive topical Placebo to be used daily for 2 weeks.

    Drug: BZ371A 7.5 mg (1.5 ml) · Drug: Placebo (1.5 ml)

  • Experimental
    Group B - Placebo, then BZ371A

    Participants will first receive topical Placebo for daily use for 2 weeks. After a washout period of 2 weeks, they will receive topical BZ371A 7.5 mg to be used daily for 2 weeks.

    Drug: BZ371A 7.5 mg (1.5 ml) · Drug: Placebo (1.5 ml)

  • Experimental
    Group C - BZ371A, then Placebo

    Participants will first receive topical BZ371A 5.0 mg for daily use for 2 weeks. After a washout period of 2 weeks, they will receive topical Placebo to be used daily for 2 weeks.

    Drug: BZ371A 5.0 mg (1.0 ml) · Drug: Placebo (1.0 ml)

  • Experimental
    Gorup D - Placebo, then BZ371A

    Participants will first receive topical Placebo for daily use for 2 weeks. After a washout period of 2 weeks, they will receive topical BZ371A 5.0 mg to be used daily for 2 weeks.

    Drug: BZ371A 5.0 mg (1.0 ml) · Drug: Placebo (1.0 ml)

  • Experimental
    Group E - BZ371A, then Placebo

    Participants will first receive topical BZ371A 2.5 mg for daily use for 2 weeks. After a washout period of 2 weeks, they will receive topical Placebo to be used daily for 2 weeks.

    Drug: BZ371A 2.5 mg (0.5 ml) · Drug: Placebo (0.5 ml)

  • Experimental
    Group F - Placebo, then BZ371A

    Participants will first receive topical Placebo for daily use for 2 weeks. After a washout period of 2 weeks, they will receive topical BZ371A 2.5 mg to be used daily for 2 weeks.

    Drug: BZ371A 2.5 mg (0.5 ml) · Drug: Placebo (0.5 ml)

Interventions

  • DrugBZ371A 7.5 mg (1.5 ml)

    Drug pages: BZ-371A · NOS Enhancer BZ371A

    7.5 mg gel

    Also known as: BZ371A

  • DrugBZ371A 5.0 mg (1.0 ml)

    Drug pages: BZ-371A · NOS Enhancer BZ371A

    5.0 mg gel

    Also known as: BZ371A

  • DrugBZ371A 2.5 mg (0.5 ml)

    Drug pages: BZ-371A · NOS Enhancer BZ371A

    2.5 mg gel

    Also known as: BZ371A

  • DrugPlacebo (1.5 ml)

    BZ371A-matched placebo

    Also known as: Placebo

  • DrugPlacebo (1.0 ml)

    BZ371A-matched placebo

    Also known as: Placebo

  • DrugPlacebo (0.5 ml)

    BZ371A-matched placebo

    Also known as: Placebo

06

What researchers measure

Primary outcomes

  1. Efficacy in increasing arousal

    Evaluation of the efficacy of BZ371A in increasing arousal using Female Sexual Encounter Profile (FSEP) questionnaire. The study will evaluate number of "yes" answers to question 3 in the Female Sexual Encounter Profile (FSEP) questionnaire, divided by the number of valid attempts (question 7 of the FSEP). The study will evaluate the increase in the FSEP score based on the baseline FSEP value, obtained before using the BZ371A. Thus, the higher the number of yes answers, the better the efficacy of the drug.

    Time frame: Baseline, 4 weeks and 8 weeks

Secondary outcomes

  1. Efficacy in increasing desire, lubrification, orgasm and arousal

    Evaluation of the success rate for desire, lubrification, orgasm and for arousal using Female Sexual Encounter Profile (FSEP). The number of successes for desire will be assessed using FSEP Question 2 / FSEP Question 7, for lubrication FSEP Question 4 / FSEP Question 7, for orgasm FSEP Question 5 / FSEP Question 7 and for the degree of arousal FSEP Question 6 / FSEP Question 7. For each question, the number of "yes" answers will be counted as success. Therefore, for each "no" answer the value will be 0 and for each "yes" answer the value will be 1.

    Time frame: Baseline, 4 weeks and 8 weeks

  2. Evaluation of the quality of female sexual encounters

    Evaluation based on the total score of the Female Sexual Encounter Profile (FSEP) questionnaire. The score ranges from 0 to 9. Therefore, the higher the score, the better the participant's sexual encounter.

    Time frame: Baseline, 4 weeks and 8 weeks

  3. Efficacy in increasing genital blood flow

    Evaluation of the efficacy of BZ371A in increasing genital blood flow using Cytocam system

    Time frame: Baseline, 4 weeks (pre-dose, 15, 30, 60, 90 and 120 minutes) and 8 weeks (pre-dose, 15, 30, 60, 90 and120 minutes)

  4. Female Sexual Function Index (FSFI)

    Evaluation of the score for each domain (Desire, Arousal, Lubrication, Orgasm, Satisfaction, Pain) using the Female Sexual Function Index (FSFI) questionnaire. The score ranges from 2 to 36. Thus, the higher the score, the better the participant's sexual satisfaction.

    Time frame: Baseline, 4 weeks and 8 weeks

  5. Assessment of treatment satisfaction

    Response rate to the Global Assessment Question (GAQ), by the number of "yes" answers to the question about arousal and sexual pleasure.

    Time frame: 4 weeks after baseline and 8 weeks after baseline

  6. Adverse effects report

    Adverse effects evaluation of compound use and application

    Time frame: 4 weeks after baseline, 8 weeks after baseline and, approximately, 11 weeks after baseline

  7. Physical examination of the genitalia

    Number of participants with abnormal physical exam findings in the applied region.

    Time frame: From up to 30 days before Baseline, Baseline, 4 weeks, 8 weeks and, approximately, 11 weeks

  8. Change in systemic blood pressure

    Change in Diastolic Blood Pressure and Systolic Blood Pressure

    Time frame: From up to 30 days before Baseline, Baseline, 4 weeks, 8 weeks and, approximately, 11 weeks

  9. Change in Heart Rate (HR)

    Change in Heart Rate

    Time frame: From up to 30 days before Baseline, Baseline, 4 weeks, 8 weeks and, approximately, 11 weeks

  10. Basal chest electrocardiogram (ECG)

    Number of participants with abnormal electrocardiogram (ECG) findings.

    Time frame: From up to 30 days before Baseline, 4 weeks after baseline, 8 weeks after baseline

  11. Blood evaluation

    Number of participants with abnormal laboratory test results

    Time frame: From up to 30 days before Baseline, 4 weeks after baseline and 8 weeks after baseline

  12. Urine evaluation

    Number of participants with abnormal laboratory test results

    Time frame: From up to 30 days before Baseline, 4 weeks after baseline and 8 weeks after baseline

07

Study locations

1 of 1 sites recruiting
  • Centro de Pesquisa Clínica Multiusuário (CePeM)
    Rio de Janeiro, Rio de Janeiro 20551030, Brazil
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 22, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06116045
Lead sponsor
Biozeus Biopharmaceutical S.A.
Responsible party
Sponsor
First posted
Nov 3, 2023
Start date
Oct 1, 2024
Primary completion
Feb 1, 2025 (estimated)
Completion
Mar 31, 2025 (estimated)
Last update
Oct 22, 2024

Study contacts

Camilla Trindade, PhD
Contact
camilla.nunes@biozeus.com.br
+55 21 25239089
Gabriela Westerlund, PhD
Contact
gabriela.westerlund@biozeus.com.br
+55 21 25239089
Marco Aurélio Oliveira, MD
principal investigator · Centro de Pesquisa Clínica Multiusuário (CePeM)

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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