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CompletedNCT00319267FUTURE-1Updated Feb 3, 2025

Bosentan in Children With Pulmonary Arterial Hypertension

A Phase 3 interventional study of Bosentan in Pulmonary Arterial Hypertension, sponsored by Actelion. Completed. Open to participants aged 2 Years to 12 Years. Per ClinicalTrials.gov, last updated 2025-02-03.

Sponsored by Actelion · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
36
Allocation
Not applicable
Ages
2 Years to 12 Years
Sex
All
01

Study 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 of bosentan in this patient population.

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Conditions studied

  • Pulmonary Arterial Hypertension

Keywords

  • bosentan
  • children
  • pharmacokinetics
  • pulmonary arterial hypertension
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In context

Pulmonary Arterial Hypertension

761 studies on the registry are indexed under Pulmonary Arterial Hypertension; 142 are open to participants now.

This study's enrollment of 36 is close to the median of 38 across 509 interventional studies indexed under Pulmonary Arterial Hypertension.

Browse Pulmonary Arterial Hypertension studies →

Lead sponsor

Actelion is the lead sponsor of 140 studies on the registry; 1 is open to participants now.

Of its 27 completed or terminated interventional studies of FDA-regulated products, 24 (89%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
2 Years to 12 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • 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:

    • 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.

Exclusion criteria

Exclusion Criteria:

  • 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.
  • 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.
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
36 participants (actual)

Study arms

  • Experimental
    Bosentan

    The 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.

    Drug: Bosentan

Interventions

  • DrugBosentan

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

    Also known as: ACT-050088, Ro 47-0203

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What researchers measure

Primary outcomes

  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 .

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

Secondary outcomes

  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.

    Time frame: 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

    Time frame: 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.

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

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Study locations

No study locations are listed for this record.

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References and documents

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 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 3, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00319267
Lead sponsor
Actelion
Responsible party
Sponsor
First posted
Apr 27, 2006
Start date
May 2005
Primary completion
Dec 2006
Completion
Feb 2007
Last update
Feb 3, 2025
View the source record on ClinicalTrials.gov ↗

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