Type 2 Diabetes Mellitus (T2DM)Phase 2DiVaNCT02219646
Diabetes & Vardenafil
A Phase 2 study testing Vardenafil in people with Type 2 Diabetes Mellitus (T2DM) and Endothelial Dysfunction, run by Azienda USL Modena at 1 site in Italy.
Trial summary
Given the protective effect of nitric oxide (NO) on the endothelium and the results obtained so far in short-term, continuous treatment with phosphodiesterase-5 (PDE5) inhibitors on parameters of endothelial function, we hypothesise that chronic treatment with vardenafil can prevent or delay the deterioration of… Read more about this study
- Who is it for?
- Ages 40 to 65 years, men only
- Conditions the study is for
- Type 2 Diabetes Mellitus (T2DM), Endothelial Dysfunction, Erectile Dysfunction
- What is being tested?
- Vardenafil
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 54 participants
- Where
- 1 siteItaly
- Study dates
- Mar 2010to Feb 2014
- Phase
- Phase 2
- 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 40 to 65 years
- Men only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Male gender
- Signed written Consent Form
- Type 2 diabetes mellitus diagnosed within 5 years before enrolment in the study
- Body Mass Index (BMI) < 35
- ED (severe, moderate or light according to the International Index of Erectile Function - erectile function domain score < 26 (Rosen et al. 1997))
- Age range: 40-65 years.
Who cannot join
- Systemic diseases except type 2 diabetes mellitus
- Absence of ED
- Psychiatric disorders
- All contraindications to treatment with PDE5 inhibitors, such as retinitis pigmentosa, non-arteritic anterior ischaemic optic neuropathy, history of coronary artery disease, recent myocardial infarction, unstable angina, systemic arterial hypotension, nitric-oxide donors therapy, severe hepatic and renal failure.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Monitoring of Endothelial Dysfunction During Chronic Administration of Vardenafil in Patients With Type 2 Diabetes Mellitus: A Longitudinal, Randomised, Placebo-controlled, Double Blind, Phase II b, Clinical Trial
Given the protective effect of nitric oxide (NO) on the endothelium and the results obtained so far in short-term, continuous treatment with phosphodiesterase-5 (PDE5) inhibitors on parameters of endothelial function, we hypothesise that chronic treatment with vardenafil can prevent or delay the deterioration of systemic endothelial function in patients with type 2 diabetes mellitus. The favourable effect of PDE5 inhibitors on sexual function in these patients has been convincingly demonstrated in the past. Here we hypothesise that vardenafil treatment can have beneficial effects on the vascular physiology in other body districts, possibly preventing the development of microangiopathy and atherosclerotic cardiovascular disease in these patients.
The main goal of this study is therefore to monitor the endothelial dysfunction during continuous treatment with vardenafil for 6 months; object of the study will be endothelin 1 and other known parameters of endothelial damage in newly diagnosed patients with type 2 diabetes mellitus.
Read the detailed description
Phosphodiesterase-5 (PDE5) inhibitors are currently used in the therapy of erectile dysfunction (ED), which is considered to be an early symptom of cardiovascular disease (CD). Impairment of endothelial function is the early lesion preceding atherosclerosis and is common to ED, CD and vascular complications of diabetes mellitus (DM). Continuous administration of the PDE5 inhibitors tadalafil or sildenafil for four weeks in men with increased cardiovascular risk or type 2 DM has been shown to improve endothelial function measured by flow-mediated dilation and reduction of inflammatory markers. The goal of this study is to investigate whether chronic, long-term treatment with vardenafil improves and/or prevents deterioration of systemic endothelial function in patients with type 2 DM. Study design: longitudinal, double-blind, randomised, placebo-controlled interventional study. Patients: 106 male patients (n determined by power analysis) with type 2 DM diagnosed and classified according to the guidelines of the European Association for the Study of Diabetes. Beside the antidiabetic treatment, patients will be randomly assigned to receive either placebo or vardenafil, 10 mg p.o. two times a day for 24 weeks. Exclusion criteria: all contraindications to treatment with PDE5 inhibitors. Age range: 40-60 years. Sample size determined by power analysis assuming variations of the primary end point of ± 10% from baseline at 0.05 α level with a power of 80%, a two-sided test and a dropout rate of 15%. Primary end point: serum endothelin 1 levels (decreased/not increased in the verum group vs. not decrease/increased in the placebo group). Other parameters and measurements: Complete clinical workup, weight, height, waist-hip ratio, serum lipids and glucose, hemoglobin glycated (HbA1c), micro- and macroalbuminuria, homocysteine, high reactive C-protein (hsCRP), interleukin-6 (IL-6), Tumor necrosis factor (TNF)α, fibrinogen, adiponectin, testosterone, sex hormone-binding globulin (SHBG) and estradiol. All parameters measured at baseline, 4 weeks, 12 weeks and 24 weeks on medication as well as 4 and 24 weeks after discontinuation of the study drug. Study duration: two years. Statistics: descriptive statistics, ANCOVA and multiple regression analysis or non-parametric tests as appropriate by STATA. Ethics: The trial will be registered. Ethics committee approval and patient informed consent will be obtained. Expected outcome and objective: Monitoring of endothelial function deterioration in type 2 DM during chronic administration of Vardenafil. Possibility for a long term-follow up study. Publication in a high impact factor journal.
- Being tested
- Vardenafil, Placebo
- Keywords
- T2DM, ED
- Medical subject headings
- Diabetes Mellitus, Type 2, Erectile Dysfunction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
VardenafilDrug
Also called Levitra
Vardenafil 10 mg twice daily for six months
PlaceboDrug
Placebo two tablets daily for 6 months
| Study group | Role | What they receive |
|---|---|---|
| Vardenafil | Experimental | The study protocol consists of a Screening/Enrolment Phase lasting up to 4 weeks, a Treatment Phase of 24 weeks, and Follow-up/Observation Treatment-free Phase of 24 weeks after the Treatment Phase. During treatment phase, patients enrolled in the Study Group were treated with vardenafil 10 mg twice/daily. Receives: Drug: Vardenafil |
| Control | Placebo comparator | The study protocol consists of a Screening/Enrolment Phase lasting up to 4 weeks, a Treatment Phase of 24 weeks, and Follow-up/Observation Treatment-free Phase of 24 weeks after the Treatment Phase. During treatment phase, patients enrolled in the Control Group were treated with tablets twice/daily identical to the Study Group, but containing placebo. Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Endothelin-1
change in serum endothelin 1 concentration
Measured: "6 months"
Secondary outcomes (3)
Flow Mediated Dilation
Change of flow mediated dilation evaluated by ultrasonography at brachial artery
Measured: "baseline"
Flow Mediated dilation (FMD)
Change of FMD levels
Measured: "6 months"
Flow Mediated Dilation
Change of FMD levels
Measured: "One year"
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Aug 2014 (estimated)
- Study startMar 2010
- Primary completionFeb 2013
- Study completionFeb 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Type 2 Diabetes Mellitus (T2DM)Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 2
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 54 participants (actual)
Sponsor and investigators
- Lead sponsor
- Azienda USL Modena
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Manuela Simoni, Azienda USL Modena
- Investigators
- Manuela Simoni, MD, PhD, Principal investigator, Azienda USL Modena
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02219646
- Sponsor's protocol ID
- EudraCT number 2009-014137-25
- Acronym
- DiVa
- Status last verified
- Aug 2014
- First submitted
- 24 Jul 2014
- Last updated
- 19 Aug 2014
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 19 Aug 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Monitoring of Endothelial Dysfunction During Chronic Administration of Vardenafil in Patients With Type 2 Diabetes Mellitus: A Longitudinal, Randomised, Placebo-controlled, Double Blind, Phase II b, Clinical Trial
- ClinicalTrials.gov ID
- NCT02219646
- Acronym / sponsor ID
- DiVa / EudraCT number 2009-014137-25
- Keywords
- T2DM, ED
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 54 participants (actual)
- Lead sponsor
- Azienda USL ModenaUniversity, hospital or other
- Study start
- Mar 2010
- Primary completion
- Feb 2013 (actual)
- Study completion
- Feb 2014 (actual)
- First posted
- 19 Aug 2014 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Given the protective effect of nitric oxide (NO) on the endothelium and the results obtained so far in short-term, continuous treatment with phosphodiesterase-5 (PDE5) inhibitors on parameters of endothelial function, we hypothesise that chronic treatment with vardenafil can prevent or delay the deterioration of systemic endothelial function in patients with type 2 diabetes mellitus. The favourable effect of PDE5 inhibitors on sexual function in these patients has been convincingly demonstrated in the past. Here we hypothesise that vardenafil treatment can have beneficial effects on the vascular physiology in other body districts, possibly preventing the development of microangiopathy and atherosclerotic cardiovascular disease in these patients.
The main goal of this study is therefore to monitor the endothelial dysfunction during continuous treatment with vardenafil for 6 months; object of the study will be endothelin 1 and other known parameters of endothelial damage in newly diagnosed patients with type 2 diabetes mellitus.
Detailed description
Phosphodiesterase-5 (PDE5) inhibitors are currently used in the therapy of erectile dysfunction (ED), which is considered to be an early symptom of cardiovascular disease (CD). Impairment of endothelial function is the early lesion preceding atherosclerosis and is common to ED, CD and vascular complications of diabetes mellitus (DM). Continuous administration of the PDE5 inhibitors tadalafil or sildenafil for four weeks in men with increased cardiovascular risk or type 2 DM has been shown to improve endothelial function measured by flow-mediated dilation and reduction of inflammatory markers. The goal of this study is to investigate whether chronic, long-term treatment with vardenafil improves and/or prevents deterioration of systemic endothelial function in patients with type 2 DM. Study design: longitudinal, double-blind, randomised, placebo-controlled interventional study. Patients: 106 male patients (n determined by power analysis) with type 2 DM diagnosed and classified according to the guidelines of the European Association for the Study of Diabetes. Beside the antidiabetic treatment, patients will be randomly assigned to receive either placebo or vardenafil, 10 mg p.o. two times a day for 24 weeks. Exclusion criteria: all contraindications to treatment with PDE5 inhibitors. Age range: 40-60 years. Sample size determined by power analysis assuming variations of the primary end point of ± 10% from baseline at 0.05 α level with a power of 80%, a two-sided test and a dropout rate of 15%. Primary end point: serum endothelin 1 levels (decreased/not increased in the verum group vs. not decrease/increased in the placebo group). Other parameters and measurements: Complete clinical workup, weight, height, waist-hip ratio, serum lipids and glucose, hemoglobin glycated (HbA1c), micro- and macroalbuminuria, homocysteine, high reactive C-protein (hsCRP), interleukin-6 (IL-6), Tumor necrosis factor (TNF)α, fibrinogen, adiponectin, testosterone, sex hormone-binding globulin (SHBG) and estradiol. All parameters measured at baseline, 4 weeks, 12 weeks and 24 weeks on medication as well as 4 and 24 weeks after discontinuation of the study drug. Study duration: two years. Statistics: descriptive statistics, ANCOVA and multiple regression analysis or non-parametric tests as appropriate by STATA. Ethics: The trial will be registered. Ethics committee approval and patient informed consent will be obtained. Expected outcome and objective: Monitoring of endothelial function deterioration in type 2 DM during chronic administration of Vardenafil. Possibility for a long term-follow up study. Publication in a high impact factor journal.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Vardenafil | Experimental | Drug: VardenafilThe study protocol consists of a Screening/Enrolment Phase lasting up to 4 weeks, a Treatment Phase of 24 weeks, and Follow-up/Observation Treatment-free Phase of 24 weeks after the Treatment Phase. During treatment phase, patients enrolled in the Study Group were treated with vardenafil 10 mg twice/daily. |
| Control | Placebo comparator | Drug: PlaceboThe study protocol consists of a Screening/Enrolment Phase lasting up to 4 weeks, a Treatment Phase of 24 weeks, and Follow-up/Observation Treatment-free Phase of 24 weeks after the Treatment Phase. During treatment phase, patients enrolled in the Control Group were treated with tablets twice/daily identical to the Study Group, but containing placebo. |
Who may qualify
- Ages
- 40 to 65 years
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Male gender
- Signed written Consent Form
- Type 2 diabetes mellitus diagnosed within 5 years before enrolment in the study
- Body Mass Index (BMI) < 35
- ED (severe, moderate or light according to the International Index of Erectile Function - erectile function domain score < 26 (Rosen et al. 1997))
Key exclusion criteria (4 listed)
- Systemic diseases except type 2 diabetes mellitus
- Absence of ED
- Psychiatric disorders
- All contraindications to treatment with PDE5 inhibitors, such as retinitis pigmentosa, non-arteritic anterior ischaemic optic neuropathy, history of coronary artery disease, recent myocardial infarction, unstable angina, systemic arterial hypotension, nitric-oxide donors therapy, severe hepatic and renal failure.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| VardenafilAlso: LevitraVardenafil 10 mg twice daily for six months | Drug | Vardenafil |
| PlaceboPlacebo two tablets daily for 6 months | Drug | Control |
Primary outcome
Endothelin-1
Time frame: "6 months"
change in serum endothelin 1 concentration
3 secondary outcomes
Flow Mediated Dilation
Time frame: "baseline"
Flow Mediated dilation (FMD)
Time frame: "6 months"
Flow Mediated Dilation
Time frame: "One year"
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Aug 2014.
Related trials for Type 2 Diabetes Mellitus (T2DM)
Not yet recruiting
Efficacy, Safety, and Treatment Satisfaction of Once-Weekly Tirzepatide in Obese Type 2 Diabetic Patients
Type 2 Diabetes Mellitus (T2DM), Obesity, Overweight
Active, not recruiting
Helping Adults With Type 2 Diabetes Use Their Health Data for Healthy Diabetes Self-Management
Type 2 Diabetes Mellitus (T2DM)
Not yet recruitingObservational study
Sarcopenia Risk in Obese T2DM Patients
Sarcopenia, Obesity Type 2 Diabetes Mellitus
Active, not recruiting
Community-Empowerment and Environmental Enrichment-based Co-management (CEEEC) Model and Mechanisms for Improving Health of Older Stroke Patients With Multimorbidity
Hypertension, Type 2 Diabetes Mellitus (T2DM)
Not yet recruiting
Supplementation of Inulin + L. Acidophilus in Elders With T2DM
Diabetes Mellitus, Microbiome
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Manuela Simoni, MD, PhD principal investigator
Azienda USL Modena
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Vardenafil in people with Type 2 Diabetes Mellitus (T2DM) and Endothelial Dysfunction, run by Azienda USL Modena at 1 site in Italy.
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 4 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 19 Aug 2014. 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 Italy. 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. Some participants in this study may receive a placebo. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Endothelin-1 (time frame: "6 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 19 Aug 2014.