E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
The proposed study is designed to evaluate whether the combination of a progestin, norethisterone enantate (NET-EN), and an androgen, testosterone undecanoate (TU), represents a safe and effective method of male fertility regulation. |
|
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10065589 |
E.1.2 | Term | Male contraception |
|
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The study is designed to address the following primary objectives: 1. The rate of suppression of spermatogenesis induced by a regimen of NET-EN and TU administered every 8 weeks for up to 4 injection visits; and 2. The level of contraceptive protection provided by the continued administration of NET-EN and TU every 8 weeks for an efficacy period of up to 56 weeks. |
|
E.2.2 | Secondary objectives of the trial |
Secondary objectives to be evaluated are as follows: 1. Maintenance of suppression of spermatogenesis below the threshold criterion for contraception by the combined regimen, throughout the Efficacy Phase; 2. Reversibility of the regimen as determined by the return of semen concentrations to ≥ 15 million/ml or of total sperm numbers to ≥ 39 x 10^6, the lower reference limits (5th centile of the reference distribution) of a fertile population, as defined by current WHO recommendations 3. Alterations in circulating concentrations of steroid and peptide hormones as a result of administration of this regimen; 4. Safety, as monitored by reports of symptoms, examination findings, urine, and blood tests; and 5. Hormonal regimen (method) acceptability. |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Inclusion criteria for male volunteers • Signed written Consent Form • Male healthy subjects • Ages 18-45 years, inclusive (or as allowed by local regulations for the lower age limit, but not less than 18 years) • Normal reproductive state demonstrated by: o sperm concentrations > 15 x 10^6 / ml or total sperm count of ≥ 39 x 10^6 in two semen samples with no gross abnormalities of sperm motility and morphology per investigator discretion o screening gonadotropin (LH and FSH) and testosterone levels should be within the centre’s normal ranges, however gonadotropin levels may fall below the lower limit of the normal ranges assuming the overall endocrine profile and semen parameters are indicative of a normal reproductive state • Body Mass Index (BMI) between 20 and 32 kg/m² (body weight in kilograms divided by body height in meters squared) • History and clinical examination without pathological findings relevant to the study including symptoms or signs of a sexually transmitted infection • Digital rectal examination of the prostate does not reveal any abnormal findings and PSA level is within normal range • Laboratory assay results do not suggest the presence of any illness • Sexually active with female partner, with a coital frequency of 2/week, on average • In a stable mutually monogamous relationship/partnership with the female partner for at least 1 year within Visit A and intends to remain in the relationship for the course of the study • Willing to comply with the requirements of the study protocol • No desire for partner pregnancy within the next 2 years and willing to accept a low but unknown risk of pregnancy.
Inclusion criteria for the female partners • Signed written Consent Form • Female healthy subjects • Ages 18-38 years, inclusive • No tubal ligation • Sexually active with male volunteer, with a coital frequency of 2/week, on average • Normal reproductive state demonstrated by: o regular menstrual cycles (no cycles that are shorter than 23 days or longer than 38 days) by volunteer history for the past three months. If recently used steroidal contraception see restrictions in Section 3.3.5, Screening/Enrollment Procedures, Enrollment Visit (S00). o medical and gynaecological history without findings suggestive of impaired fertility as judged by the P.I. (e.g. no history of pelvic inflammatory disease, endometriosis, use of hormonal contraception with the indication to regulate menses or complications resulting from any conception/pregnancy which may adversely affect future fertility) o no contraindication to pregnancy o no signs or symptoms of a sexually transmitted infection • In a stable mutually monogamous relationship/partnership with the male volunteer for at least 1 year within Visit A and intends to remain in the relationship for the course of the study • Willing to comply with the requirements of the study protocol • Not pregnant at the time of entry to the Suppression Phase • No desire for pregnancy within the next 2 years and willing to accept a low but unknown risk of pregnancy |
|
E.4 | Principal exclusion criteria |
Exclusion criteria for the male volunteers: • Participation in another clinical trial within 30 days preceding the first drug administration, or simultaneous participation in another clinical trial • Institutionalized or imprisoned by order of the court • Competition in sports which use World Anti-Doping Agency (WADA) drug monitoring • History of or current prostate or testicular pathology (including varicocele that is visible or palpable without Valsalva maneuver) or male infertility • Serious organic or psychiatric disease suspected from history and/or clinical examination • Diseases (including tumors) that may be affected by testosterone use or that may affect the outcome of the study, e.g.: o prostate disease o past or present history, or family history, of thrombotic or embolic diseases o hypertension requiring therapy (BP >140/90 mm Hg) o diabetes mellitus requiring therapy o acute or chronic hepatic diseases o manifest renal diseases with renal dysfunction • Biochemical and/or hematological laboratory values outside normal ranges, unless the investigator confirms that the deviations are of no clinical relevance • Any indication of chronic use of illicit drugs or alcohol abuse • Use of any disallowed medications as listed in the Investigator’s Brochure or of any drug known to affect absorption, distribution, metabolism or excretion (ADME) of testosterone within the 30 days preceding the first administration of the test compounds • Use of oral anticoagulatory drugs (e.g., warfarin) within the 30 days preceding the first administration of the test compounds and during the study (aspirin is allowed) • Implantation of a sustained-action sex hormone within 8 months of Visit A • History of allergy to any component of the study drugs
Exclusion criteria for the female partners: • Participation in any other clinical trial that would affect fertility • Use of DMPA 12 months prior to Visit A • Any indication of chronic use of illicit drugs or alcohol abuse
|
|
E.5 End points |
E.5.1 | Primary end point(s) |
Primary endpoints include: 1. The proportion of male participants who are rendered azoospermic and/or severely oligozoospermic (sperm concentrations < 1 million/ml) at any point in the Suppression Phase; and 2. 12-month contraceptive method failure rates. |
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 5 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
|
E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
see section 3.3.7 of the protocol |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 6 |