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Hypoactive Sexual Desire DisorderPhase 4NCT01208038

Testosterone Patch's Effects on the Cardiovascular System and Libido

A Phase 4 study testing Intrinsa Transdermal testosterone patch in people with Hypoactive Sexual Desire Disorder, run by Imperial College Healthcare NHS Trust at 3 sites in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to examine the effect of the testosterone patch, in addition to hormone replacement therapy (HRT), on blood vessel walls, insulin levels and sexual desire. Read more about this study

Who is it for?
Ages 45 to 70 years, women only
Conditions the study is for
Hypoactive Sexual Desire Disorder
What is being tested?
Intrinsa Transdermal testosterone patch
Could I receive a placebo?
No, everyone receives an active treatment
How many people
22 participants
Where
3 sitesUnited Kingdom
Study dates
Mar 2011to Feb 2012
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 45 to 70 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • healthy postmenopausal women
  • 45 to 70 years of age
  • on HRT and willing to continue the same HRT regimen for the next 6 months
  • are in a stable relationship which was started at least 6 months ago
  • continue on any concomitant medications without any change during the study
  • give informed consent.

Who cannot join

  • have dyspareunia
  • have received testosterone implants within the last 12 months or other androgen therapy within the last 6 months
  • have received any medications which may interfere with the study (SSRI, anti-androgens, PDE5 inhibitors, DHEA, SERMS)
  • have a significant psychiatric disorder
  • have a history of breast cancer
  • have diabetes, thromboembolic disorders, cardiovascular disease, any condition affecting carbohydrate metabolism, uncontrolled hypertension and uncontrolled hyperlipidaemia
  • are on tibolone (due to its androgenic effect).

Trial locations and contacts

3 sites in 1 country.

United Kingdom3 sites
  • Chelsea and Westminster Hospital

    London, SW10 9NH

  • Queen Charlotte's and Chelsea Hospital

    London, W14 0HS

  • Royal Brompton Hospital

    London

Other trials in United Kingdom

About this study

Official title: Pilot Study: Evaluating the Effect of 300 Micrograms Testosterone Patches in Addition to Hormone Replacement Therapy on Arterial Compliance, Insulin Resistance and Sexual Desire.

The purpose of this study is to examine the effect of the testosterone patch, in addition to hormone replacement therapy (HRT), on blood vessel walls, insulin levels and sexual desire.

Read the detailed description

A woman's ovaries produce the hormone testosterone during her reproductive life but testosterone levels decline with age or when the ovaries are removed. Testosterone has been associated with sexual desire in both men and women. Low testosterone is also believed to cause symptoms of low energy. Thus testosterone is increasingly used in hormone replacement regimens to restore libido and energy in postmenopausal women.

In the past testosterone has been administered orally or via subcutaneous implants. Recently testosterone patches have been licensed for treating low libido in postmenopausal women. The testosterone patches deliver a dose of testosterone equivalent to the levels produced by the ovary during a woman's early reproductive years.

Oral testosterone can lead to changes to insulin and cholesterol levels which increase the risk of heart disease. On the contrary, testosterone patches may reduce or avoid this risk. To date, trials have predominantly focused on safety data in terms of side effects and basic blood tests. Reviews of the safety of testosterone replacement have emphasised the need for improved safety data, especially in terms of cardiovascular risk.

The investigators hypothesis that transdermal testosterone, in addition to HRT, will have no adverse effects on blood vessel walls and insulin levels and that transdermal testosterone significantly improves sexuality and psychological well-being in postmenopausal women.

Trial design:

The investigators aim to recruit 20 postmenopausal women to wear the testosterone patch for 3 months in addition to their usual hormone replacement therapy.

There will be 3 study visits - a pre study visit, week 6 and week 12. At each visit the following procedures will be performed:

  • Medical history and physical examination
  • Blood sample - for hormone levels, lipids and insulin levels
  • Blood vessel stiffness measurements This will be performed using a small ultrasound device at the wrist with blood pressure measured every 5 minutes.
  • Endothelial function (function of your arterial wall) is measured using a blood pressure cuff on each arm and finger probes on one finger of each hand. The blood pressure cuff is inflated for 5 minutes and is then deflated quickly. The finger probes will record the readings throughout this study.
  • Sexual satisfaction questionnaire
Being tested
Intrinsa Transdermal testosterone patch
Keywords
Hypoactive sexual desire disorder
Medical subject headings
Sexual Dysfunctions, Psychological

What participants receive

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

  • Intrinsa Transdermal testosterone patchDrug

    Also called Intrinsa

    300 microgram transdermal testosterone patch, applied twice weekly for 12 weeks

Study groups in NCT01208038
Study groupRoleWhat they receive
TestosteroneExperimentalTestosterone transdermal patch 300micrograms, twice weekly for 12 weeks
Receives: Drug: Intrinsa Transdermal testosterone patch

What is being measured

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

  1. Arterial Compliance - Augmentation Index

    Peripheral pressure waveforms were captured using radial artery application tonometry via the SphygmoCor apparatus (AtCor Medical Ltd., Sydney, Australia; software version 8.0). The central (ascending aortic) pressure waveform was then derived from an averaged peripheral waveform using a validated, transfer function. The augmentation index (AIx), which gives a composite measure of wave reflection and systemic arterial stiffness can then be calculated by analysis of the central waveform. Aix was defined as the difference between the first and second systolic peaks of the central pressure waveform, expressed as a percentage of the central pulse pressure.

    Measured: 12 weeks from baseline

  2. Endothelial Function

    Reactive Hyperaemia Index (RHI) was calculated automatically by the EndoPAT 2000 computer algorithm from the ratio of pulse wave amplitude before and after ischemia, compared to the control arm. Official reference values do not exist however a lower RHI (<2.0) is usually considered indicative of endothelial dysfunction.

    Measured: 12 weeks from baseline

Secondary outcomes (2)
  1. Insulin Resistance - HOMA-IR

    Blood samples were taken for fasting glucose and insulin levels. From these results, insulin resistance was then estimated using the updated homeostasis model assessment method for insulin resistance (HOMA-IR) computer algorithm. A higher HOMA-IR indicates a higher degree of insulin resistance. Typically a cutoff of HOMA-IR for identifying those with insulin resistance is 2.5.

    Measured: 12 weeks from baseline

  2. Libido - B-PFSF Score

    Libido was assessed at each visit using the Brief profile of female sexual function (BPFSF), a validated self-administered questionnaire for identifying Hypoactive Sexual Desire Disorder (HSDD). The BPFSF is based on 7 questions. Each question is scored on a 6-point scale from 'always' to 'never'. A total score is total score ranging from 0 to 35. Previous studies have identified a score of less than 20 as suggestive of HSDD.

    Measured: 12 weeks from baseline

Timeline

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

  1. First posted23 Sep 2010 (estimated)
  2. Study startMar 2011
  3. Primary completionFeb 2012
  4. Study completionFeb 2012

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 4
Primary purpose
Supportive care
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01208038
Sponsor's protocol ID
CRO1646
Status last verified
Dec 2019
First submitted
22 Sep 2010
Last updated
2 Jan 2020
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Intrinsa Transdermal testosterone patch in people with Hypoactive Sexual Desire Disorder, run by Imperial College Healthcare NHS Trust at 3 sites in United Kingdom.

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 6 inclusion and 7 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: finished, as of the sponsor's last update on 2 Jan 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United Kingdom. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 Jan 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Arterial Compliance - Augmentation Index (time frame: 12 weeks from baseline). The study lists 2 primary outcomes in all. 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 2 Jan 2020.

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