Actelion Announces Multiple Presentations on Tracleer(R) and the REVEAL Registry at ...( CHICAGO Oct. 19 /- Actelion Ltd (...)

CHICAGO, Oct. 19 /PRNewswire/ -- Actelion Ltd (SWX: ATLN) today announced multiple presentations regarding Tracleer(R) (bosentan), including new Phase 3 data assessing the efficacy and safety of Tracleer in combination with sildenafil, and data obtained from the first 1,500 patients with pulmonary arterial hypertension (PAH) enrolled in the REVEAL(TM) (Registry to EValuate Early And Long-term PAH Disease Management) Registry. The presentations and publications are part of the proceedings at CHEST 2007, the annual meeting of the American College of Chest Physicians, being held October 20-25, 2007 at McCormick Place in Chicago, IL. The company will be exhibiting at booth # 239 in the Exhibit Hall.

The presentations and abstracts -- including date and location for each -- are as follows:

Tuesday, October 23, 2007, 12:30 p.m. - 2:00 p.m.

Session: Pulmonary Vascular Disease: Evaluation and Treatment, ID #858

Oral Presentation: REVEAL Registry: Baseline Characteristics of the First

Enrolled Patients

Location: Convention Center E264

Presenter: David Badesch, MD

Abstract #: 5982

Tuesday, October 23, 2007, 2:30 p.m. - 4:00 p.m.

Session: Pulmonary Vascular Disease: Pulmonary HTN, ID # 900

Oral Presentation: Bosentan improves hemodynamics in patients receiving

background Sildenafil treatment: results from EARLY, a randomized,

double-blind, placebo controlled study in patients with mildly

symptomatic pulmonary arterial hypertension

Location: Convention Center E266

Presenter: Lewis Rubin, MD

Abstract #: 5356

Session: Pulmonary Vascular Disease : Pulmonary HTN, ID # 900

Oral Presentation: Acute hemodynamic effect of Sildenafil in comparison

with inhaled nitric oxide in patients receiving Bosentan therapy for

pulmonary arterial hypertension (COMPASS-1)

Location: Convention Center E266

Presenter: Nazzareno Galie,
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