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HypogonadismPhase 1NCT00705796

Influence of Administration Route of Testosterone on Male Fertility

A Phase 1 study testing MPP10, testosterone and Testosterone in people with Hypogonadism, run by Acerus Pharmaceuticals Corporation at 1 site in Netherlands.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

Exogenously administered testosterone will override the normal negative feedback of endogenous testosterone on the hypothalamus and pituitary. Constantly, relatively high and constant testosterone levels will cause a drop in FSH and LH production by the pituitary. Read more about this study

Who is it for?
Ages 50 to 80 years, men onlyHealthy volunteers can take part
Conditions the study is for
Hypogonadism
What is being tested?
MPP10, testosterone and Testosterone
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteNetherlands
Study dates
Start not givento not given
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 to 80 years
  • Men only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Age greater than or equal to 50 years but not older than 80 years of age;
  • Serum testosterone level <13.8 nmol/l;
  • Sperm concentration > 40 Million/ml;
  • Willing to give written informed consent.

Who cannot join

  • Testicular diseases or having had any surgical procedures applied to the testes;
  • History or currently existing serious disease of any type, in particular liver, kidney or heart disease, any form of diabetes mellitus, cancer or psychiatric illness;
  • Current androgen, anabolic steroid or sex hormone treatment or any treatment with such compounds in the previous 6 months;
  • Blood donation within the 12-week period before the initial study dose.
  • History of, or current nasal disorders (e.g. seasonal or perennial allergic rhinitis, atrophic rhinitis, polyposis, abuse of nasal decongestants, clinically relevant nasal septum deviation, recurrent epistaxis) or sleep apnea;
  • Elevated serum PSA levels (> 4 ng/ml for subjects >= 50 years of age);

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • AMPHA

    Nijmegen, 6525 EC

Other trials in Netherlands

About this study

Official title: Influence on Human Male Fertility of Testosterone After Intranasal (MPP10) or Transdermal (AndroGel™) Application

Exogenously administered testosterone will override the normal negative feedback of endogenous testosterone on the hypothalamus and pituitary. Constantly, relatively high and constant testosterone levels will cause a drop in FSH and LH production by the pituitary. Since FSH and LH are signalling hormones to the testes, endogenous testosterone production and spermatogenesis will be down-regulated. It is expected that intranasal dosing in the morning will mimic the normal physiological pattern of testosterone production thereby avoiding negative side-effects on spermatogenesis. Trans-dermal gels give testosterone levels more or less constant over the day and will very likely have inhibitory effects on spermatogenesis.

The main objective of this study is to show that twice daily intranasal dosing does not have, or has a smaller inhibitory effect on spermatogenesis in comparison to transdermal testosterone gels.

Conditions
Hypogonadism
Being tested
MPP10, testosterone, Testosterone
Keywords
Hypogonadism, Spermatogenesis, Quality of Life
Medical subject headings
Hypogonadism

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MPP10, testosteroneDrug

    Also called Nasobol

    Testosterone intranasal, 7.6 mg, twice daily to be taken immediately after waking up and washing/showering (approx. 7:00-8:00 AM) and at lunch time (approx. 12:00 AM).

  • TestosteroneDrug

    Also called AndroGel

    AndroGel® 50 mg, once daily in the morning after washing/showering.

Study groups in NCT00705796
Study groupRoleWhat they receive
Group 1ExperimentalGroup 1 will be treated with MPP10, 7.6 mg, twice daily to be taken immediately after waking up and washing/showering (approx. 7:00-8:00 AM) and at lunch time (approx. 12:00 AM).
Receives: Drug: MPP10, testosterone
Group 2Active comparatorGroup 2 will be treated with AndroGel® 50 mg, once daily in the morning after washing/showering.
Receives: Drug: Testosterone

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The main study parameter is the change in sperm concentration during the 4-month study period for each of the two treatment groups.

    Measured: 4 months

Secondary outcomes (2)
  1. The effects of treatment on the health related quality of life (QoL);

    Measured: 4 months

  2. The influence of transdermal and intranasal testosterone treatment on morphology and motility on sperm cells and on the volume of the ejaculate;

    Measured: 4 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Jun 2008 (estimated)

Why it stopped: financial constraints

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00705796
Sponsor's protocol ID
Nasobol 02/2008
Status last verified
Mar 2018
First submitted
25 Jun 2008
Last updated
13 Mar 2018
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing MPP10, testosterone and Testosterone in people with Hypogonadism, run by Acerus Pharmaceuticals Corporation at 1 site in Netherlands.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 13 Mar 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The main study parameter is the change in sperm concentration during the 4-month study period for each of the two treatment groups. (time frame: 4 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Mar 2018.

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