NCT03452111

Brief Summary

The long term objective is to develop a gel to be used as a male contraceptive.

Trial Health

93
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
420

participants targeted

Target at P75+ for phase_2 healthy

Timeline
Completed

Started Oct 2018

Longer than P75 for phase_2 healthy

Geographic Reach
7 countries

17 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 23, 2018

Completed
7 days until next milestone

First Posted

Study publicly available on registry

March 2, 2018

Completed
8 months until next milestone

Study Start

First participant enrolled

October 25, 2018

Completed
5.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 6, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 6, 2024

Completed
Last Updated

February 18, 2025

Status Verified

February 1, 2025

Enrollment Period

5.9 years

First QC Date

February 23, 2018

Last Update Submit

February 14, 2025

Conditions

Keywords

Healthy MenCoupleGelMale ContraceptionNestoroneTestosterone

Outcome Measures

Primary Outcomes (1)

  • Contraceptive efficacy provided by daily application of NES/T gel for 52 wks during the efficacy phase of the study determined using Kaplan-Meier methods to estimate the 12-mth cumulative pregnancy probability in the efficacy(evaluable cycles)population.

    12 months

Secondary Outcomes (26)

  • Suppression of spermatogenesis induced by daily use of the NES/T gel as assessed by semen analyses using number of subjects with sperm concentration <1 million (M)/mL during the suppression phase of the study.

    20 weeks

  • Maintenance of suppression of spermatogensis induced by daily use of the NES/T gel as assessed by semen analyses using number of subjects with sperm concentration <1 million (M)/mL during the 52 week efficacy phase of the study.

    52 weeks

  • Changes from baseline in Follicle Stimulating Hormone (FSH) with daily use of the NES/T gel.

    24 months

  • Changes from baseline in Luteinizing Hormone (LH) with daily use of the NES/T gel.

    24 months

  • Changes from baseline in Sex Hormone Binding Globulin (SHBG) with daily use of the NES/T gel.

    24 months

  • +21 more secondary outcomes

Study Arms (1)

Nestorone (NES) + testosterone (T) combined gel

EXPERIMENTAL

A combination Gel with Nestorone® (NES) and Testosterone (T) applied transdermally (NES/T gel). The amount of gel to be applied daily will be approximately 5 mL in volume (2.5 mL to each shoulder and upper arm per day). This daily gel volume will contain approximately 62 mg or 74 mg of T of which 6.2 mg of T with the original dose (Cohort A) and about 7.4mg of T with the second dose (Cohort B) will be absorbed per day (10% skin absorption)

Drug: Nestorone + Testosterone Combination Gel

Interventions

The combined gel is a transdermal treatment that will be applied daily for 52 weeks to a male subject's arms and shoulders. The formulation will be a hydro alcoholic gel. About 9 to 14% of the steroid (T or NES) in the gel applied is available to the body. The amount of gel to be applied each application will be approximately 5 mL in volume.

Also known as: NES/T gel
Nestorone (NES) + testosterone (T) combined gel

Eligibility Criteria

Age18 Years - 50 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Men who meet all the following criteria will be eligible for enrollment in the trial:
  • Good health as confirmed by medical history, physical examination, and clinical laboratory tests of blood and urine at the time of screening;
  • to 50 years of age, at the enrollment visit;
  • BMI \< 33 kg/m2;
  • No history of androgen use in the six months prior to the first screening visit;
  • Agreement to use an effective method of contraception with his female partner (refer to Appendix 11 for acceptable forms of contraception) during the suppression and the first 7 days of the recovery phase and then only use the experimental method during the efficacy phase of the study;
  • In the opinion of the investigator, the male subject is willing and able to comply with the protocol, understand and sign an informed consent and HIPAA form;
  • The subject is legally competent, has been informed of the nature, the scope and the relevance of the study, voluntarily agrees to participation and the study's provisions and has duly signed the informed consent form (ICF);
  • Sexually active with a female partner (as specified below) with whom he has been in a stable, mutually monogamous relationship for at least 1 year prior to screening and with whom he intends to remain in a relationship for the duration of the study;
  • No known infertility;
  • Normal reproductive state as demonstrated by:
  • Sperm concentration ≥15 million/mL in two semen samples and with no gross abnormalities of sperm motility and morphology on at least one semen sample assessment;
  • Screening Testosterone within the study site's local lab normal reference range for adult men;
  • Willingness to accept a low but unknown risk of conceiving a pregnancy for the duration of the trial.
  • Women who meet all the following criteria will be eligible for enrollment in the trial:
  • +15 more criteria

You may not qualify if:

  • Men who meet any of the following criteria are not eligible for enrollment in the trial:
  • Men participating in another clinical trial involving an investigational drug within the last 30 days (or within five half-lives of the investigational drug, whichever is longer) prior to the first screening visit.
  • Men not living in the catchment's area of the study site or within a reasonable distance from the site.
  • Clinically significant abnormal findings at screening per the Investigator's medical judgment.
  • Elevated PSA levels ≥ 4 ng/mL.
  • Abnormal serum chemistry values that may indicate clinically significant liver or kidney dysfunction.
  • Use of androgens or other anabolic steroids that may suppress gonadotropins within 6 months prior to the first screening visit.
  • Diastolic blood pressure (DBP) ≥ 85 and Systolic blood pressure (SBP) ≥ 135 mm Hg; (BP will be taken three times at approximately 5 minute intervals and the mean of the 2 measurements will be used to determine eligibility).
  • History of hypertension, including hypertension controlled with treatment.
  • Known history of primary testicular disease or disorders of the hypothalamic-pituitary axis.
  • Known hypersensitivity to progestins or testosterone or any excipient of the investigational product.
  • History of prostate, testicular or breast carcinoma.
  • Significant prostatic symptoms (IPSS \> 15).
  • Known history of reproductive dysfunction including vasectomy or infertility.
  • Known history of significant cardiac, renal, hepatic or prostatic disease.
  • +24 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (17)

UC Davis Health

Sacramento, California, 95817, United States

Location

The Lunquist Institute at Harbor-UCLA Medical Center

Torrance, California, 90509, United States

Location

Comprehensive Women's Health Center

Denver, Colorado, 80230, United States

Location

University of Kansas

Kansas City, Kansas, 66160, United States

Location

Oregon Health & Science University

Portland, Oregon, 97239, United States

Location

University of Pennsylvania Medical Center

Philadelphia, Pennsylvania, 19104, United States

Location

University of Utah

Salt Lake City, Utah, 84132, United States

Location

Eastern Virginia Medical School-EVMS Obstetrics & Gynecology

Norfolk, Virginia, 23507, United States

Location

University of Washington Medical Center & Health Sciences

Seattle, Washington, 98195, United States

Location

Centro de Medicina Reproductiva Shady Grove Chile

Santiago, Vitacura, 7650672, Chile

Location

Chilean Institute of Reproductive Medicine

Santiago, 8320000, Chile

Location

University of Bologna, Italy

Bologna, 40138, Italy

Location

Kenyatta National Hospital

Nairobi, 00202, Kenya

Location

Karolinska Institutet

Stockholm, Sweden

Location

University of Edinburgh

Edinburgh, EH 16 4SA, United Kingdom

Location

University of Manchester, UK

Manchester, M13 9WL, United Kingdom

Location

Spilhaus Clinical Research Site

Harare, 00000, Zimbabwe

Location

Related Publications (1)

  • Lue Y, Swerdloff R, Pak Y, Nguyen BT, Yuen F, Liu PY, Blithe DL, Wang C. Male contraception development: monitoring effective spermatogenesis suppression utilizing a user-controlled sperm concentration test compared with standard semen analysis. Fertil Steril. 2023 Feb;119(2):208-217. doi: 10.1016/j.fertnstert.2022.11.002. Epub 2022 Nov 5.

MeSH Terms

Conditions

Multiple Endocrine Neoplasia Type 1

Interventions

ST 1435

Condition Hierarchy (Ancestors)

Multiple Endocrine NeoplasiaEndocrine Gland NeoplasmsNeoplasms by SiteNeoplasmsNeoplasms, Multiple PrimaryNeoplastic Syndromes, HereditaryGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesEndocrine System Diseases

Study Officials

  • Diana Blithe, PhD

    Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Senior Program Director, NICHD

Study Record Dates

First Submitted

February 23, 2018

First Posted

March 2, 2018

Study Start

October 25, 2018

Primary Completion

September 6, 2024

Study Completion

September 6, 2024

Last Updated

February 18, 2025

Record last verified: 2025-02

Locations