Hypertension, PulmonaryPhase 3NCT00780728
Study Evaluating the Addition of Sildenafil to Bosentan Therapy in Pulmonary Arterial Hypertension
A Phase 3 study testing Sildenafil in people with Hypertension, Pulmonary, run by University Health Network, Toronto.
Trial summary
This study will examine the effects of add-on sildenafil to bosentan monotherapy in patients with Pulmonary Arterial Hypertension. Patients on bosentan monotherapy will be followed every 6 months to assess if they have met the pre-defined treatment goals. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Hypertension, Pulmonary
- What is being tested?
- Sildenafil
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- Not given
- Where
- No sites listed yet
- Study dates
- Start not givento not given
- Phase
- Phase 3
- 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 18 years and older
- All sexes
- Adult, Older adult
Inclusion \& Exclusion Criteria
About this study
Official title: Addition of Sildenafil to Bosentan Monotherapy in Patients With Pulmonary Arterial Hypertension (PAH)
This study will examine the effects of add-on sildenafil to bosentan monotherapy in patients with Pulmonary Arterial Hypertension. Patients on bosentan monotherapy will be followed every 6 months to assess if they have met the pre-defined treatment goals. If a patient fails to achieve these treatment goals or fails to maintain them, sildenafil will be added to their existing bosentan monotherapy. Patients will be assessed 6 months after start of combination therapy for changes in 6MWT, Borg dyspnea scale, WHO functional class, quality of life.
- Conditions
- Hypertension, Pulmonary
- Being tested
- Sildenafil
- Medical subject headings
- Hypertension, Pulmonary
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
SildenafilDrug
| Study group | Role | What they receive |
|---|---|---|
| Sildenafil | Active comparator | Not described Receives: Drug: Sildenafil |
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Oct 2008 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Hypertension, PulmonaryStudies of the same condition, open and under way.
- More trials run by University Health Network, TorontoThe sponsor's other registered studies.
- 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 3
Sponsor and investigators
- Lead sponsor
- University Health Network, Toronto
- Sponsor type
- University, hospital or other
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00780728
- Sponsor's protocol ID
- UHNOHI
- Status last verified
- Nov 2009
- First submitted
- 27 Oct 2008
- Last updated
- 13 Nov 2009
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 13 Nov 2009. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Addition of Sildenafil to Bosentan Monotherapy in Patients With Pulmonary Arterial Hypertension (PAH)
- ClinicalTrials.gov ID
- NCT00780728
- Acronym / sponsor ID
- UHNOHI
- Conditions
- Hypertension, Pulmonary
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Withdrawn
- Lead sponsor
- University Health Network, TorontoUniversity, hospital or other
- First posted
- 28 Oct 2008 (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.
This study will examine the effects of add-on sildenafil to bosentan monotherapy in patients with Pulmonary Arterial Hypertension. Patients on bosentan monotherapy will be followed every 6 months to assess if they have met the pre-defined treatment goals. If a patient fails to achieve these treatment goals or fails to maintain them, sildenafil will be added to their existing bosentan monotherapy. Patients will be assessed 6 months after start of combination therapy for changes in 6MWT, Borg dyspnea scale, WHO functional class, quality of life.
Study design
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Sildenafil | Active comparator | Drug: Sildenafil |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Age groups
- Adult, Older adult
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 |
|---|---|---|
| Sildenafil | Drug | Sildenafil |
Primary outcome
Not reported in the source record.
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Nov 2009.
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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.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Sildenafil in people with Hypertension, Pulmonary, run by University Health Network, Toronto.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
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 Nov 2009. Status can change between updates, so confirm with the study contact before making plans.
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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
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.
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 Nov 2009.