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Pulmonary Arterial HypertensionPhase 3FUTURE-1NCT00319267

Bosentan in Children With Pulmonary Arterial Hypertension

A Phase 3 study testing Bosentan in people with Pulmonary Arterial Hypertension, run by Actelion.

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 aim of the study is to demonstrate that the exposure to bosentan in children with idiopathic pulmonary arterial hypertension (PAH) or familial pulmonary arterial hypertension, using a pediatric formulation, is similar to that in adults with PAH and to evaluate the tolerability and safety of a pediatric formulation… Read more about this study

Who is it for?
Ages 2 to 12 years
Conditions the study is for
Pulmonary Arterial Hypertension
What is being tested?
Bosentan
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
No sites listed yet
Study dates
May 2005to Feb 2007
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 2 to 12 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Signed informed consent by the parents or the legal representatives.
  • Males or females >= 2 and < 12 years of age.
  • Idiopathic PAH or familial PAH diagnosed by right heart catheterization (Clinical classification of pulmonary hypertension, Venice 2003).
  • World Health Organization (WHO) functional class II or III.
  • Oxygen saturation (SpO2) >= 88% (at rest, on room air).
  • PAH treatment-naïve patients or patients already treated with either:
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  • Bosentan monotherapy
  • Intravenous epoprostenol monotherapy
  • Intravenous or inhaled iloprost monotherapy
  • Combination of bosentan and intravenous epoprostenol
  • Combination of bosentan and intravenous or inhaled iloprost.
  • All patients should start the study drug (bosentan pediatric formulation) at 2 mg/kg twice daily (b.i.d.), whether or not they were previously treated with bosentan.
  • PAH therapy stable for at least 3 months prior to Screening.
  • Stable treatment with calcium channel blockers, if any, for at least 3 months prior to Screening.
  • Patient's PAH condition stable for at least 3 months prior to Screening.

Who cannot join

  • PAH associated with conditions other than idiopathic or familial PAH.
  • Non-stable patients, e.g., history (in the last 3 months prior to Screening) of recurrent syncope, or signs and symptoms of non-compensated right heart failure.
  • Need or plan to wean patients from intravenous epoprostenol, or intravenous, or inhaled iloprost.
  • Body weight < 4 kg.
  • Systolic blood pressure < 80%, the lower limit of normal range, according to age and gender.
  • AST and/or ALT values > 3 times the upper limit of normal ranges.
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  • Moderate to severe hepatic impairment, i.e., Child-Pugh Class B or C.
  • Hemoglobin and/or hematocrit levels < 75% of the lower limit of normal ranges.
  • Pregnancy.
  • Known intolerance or hypersensitivity to bosentan or any of the excipients.

About this study

Official title: An Open Label, Multicenter Study to Assess the Pharmacokinetics, Tolerability, and Safety of a Pediatric Formulation of Bosentan in Children With Idiopathic or Familial Pulmonary Arterial Hypertension

The aim of the study is to demonstrate that the exposure to bosentan in children with idiopathic pulmonary arterial hypertension (PAH) or familial pulmonary arterial hypertension, using a pediatric formulation, is similar to that in adults with PAH and to evaluate the tolerability and safety of a pediatric formulation of bosentan in this patient population.

Being tested
Bosentan
Keywords
bosentan, children, pharmacokinetics, pulmonary arterial hypertension
Medical subject headings
Pulmonary Arterial Hypertension

What participants receive

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

  • BosentanDrug

    Also called ACT-050088, Ro 47-0203

    Pediatric oral formulation of bosentan, i.e., 32 mg dispersible and breakable tablets

Study groups in NCT00319267
Study groupRoleWhat they receive
BosentanExperimentalThe initial dose of bosentan was 2 mg/kg b.i.d. for 4 weeks. After 4 weeks, the initial dose was up-titrated to the maintenance dose of 4 mg/kg b.i.d. up to the end of the study treatment at Week 12. If the maintenance dose was not well tolerated, the dose could be down-titrated to the initial dose.
Receives: Drug: Bosentan

What is being measured

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

  1. Area under the plasma concentration-time curve during a dose interval (AUCt) for bosentan

    AUCt was assessed at steady state (i.e., after at least 2 weeks of treatment with a same dose of the study drug) over 12 hours .

    Measured: At pre-dose and 0.5h, 1h, 3h, 7.5h, and 12h post-dose

Secondary outcomes (3)
  1. Maximum plasma concentration (Cmax) of bosentan and its metabolites

    Maximum observed plasma concentration for bosentan and its metabolites was directly derived from their respective plasma concentration-time curves.

    Measured: At pre-dose and 0.5h, 1h, 3h, 7.5h, and 12h post-dose

  2. Time to reach the maximum plasma concentration (tmax) of bosentan and its metabolites

    Measured: At pre-dose and 0.5h, 1h, 3h, 7.5h, and 12h post-dose

  3. Area under the plasma concentration-time curve during a dose interval (AUCt) for the metabolites of bosentan

    AUCt was assessed at steady state (i.e., after at least 2 weeks of treatment with a same dose of the study drug) over 12 hours.

    Measured: At pre-dose and 0.5h, 1h, 3h, 7.5h, and 12h post-dose

Timeline

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

  1. First posted27 Apr 2006 (estimated)
  2. Study startMay 2005
  3. Primary completionDec 2006
  4. Study completionFeb 2007

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 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00319267
Sponsor's protocol ID
AC-052-365
Other IDs
2004-005157-63, 2004
Acronym
FUTURE-1
Status last verified
Jan 2025
First submitted
26 Apr 2006
Last updated
3 Feb 2025
Results posted
No

Publications

  • Beghetti M, Haworth SG, Bonnet D, Barst RJ, Acar P, Fraisse A, Ivy DD, Jais X, Schulze-Neick I, Galie N, Morganti A, Dingemanse J, Kusic-Pajic A, Berger RM. Pharmacokinetic and clinical profile of a novel formulation of bosentan in children with pulmonary arterial hypertension: the FUTURE-1 study. Br J Clin Pharmacol. 2009 Dec;68(6):948-55. doi: 10.1111/j.1365-2125.2009.03532.x.

    PubMed 20002090

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Bosentan in people with Pulmonary Arterial Hypertension, run by Actelion.

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 15 inclusion and 10 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 3 Feb 2025. 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 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?

Area under the plasma concentration-time curve during a dose interval (AUCt) for bosentan (time frame: At pre-dose and 0.5h, 1h, 3h, 7.5h, and 12h post-dose). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00319267, which also lists 1 linked publication.

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 3 Feb 2025.

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