Impact of Multiple Doses of BAY63-2521 on Safety, Tolerability, Pharmacokinetics and Pharmacodynamics in Patients With Interstitial Lung Disease (ILD) Associated Pulmonary Hypertension (PH)
Impact of Multiple Doses of BAY63-2521 on Safety, Tolerability, Pharmacokinetics and Pharmacodynamics in Patients With Interstitial Lung Disease (ILD) Associated Pulmonary Hypertension (PH)
The purpose of this study is to assess multiple ascending doses of a new drug (BAY63-2521)
 given orally, to evaluate if it is safe and can help to improve the well-being, symptoms
 (e.g. disturbed breathing) and outcome of pulmonary hypertension associated with lung
 fibrosis. Patients living with pulmonary hypertension associated with interstitial lung
 disease have a risk of increased number of hospitalisations because of worsening of their
 condition. Until now there is no approved medication for this disease. The current treatment
 of pulmonary hypertension associated with interstitial lung disease consists: of oxygen and
 medical treatment with vasodilators, e.g. so-called Calcium-antagonists. Therefore, there is
 a need for new drugs in the treatment of pulmonary hypertension associated with interstitial
 lung disease.
Inclusion Criteria:

 -  Diagnosis of an interstitial lung disease (usual interstitial pneumonia [UIP],
 nonspecific interstitial pneumonia [NSIP] or sarcoidosis) with high resolution CT and
 a total lung capacity (TLC) ≤ 90% or scleroderma associated pulmonary arterial
 hypertension (PAH) with total lung capacity (TLC) ≤ 80%.

 -  Interstitial lung disease (ILD) must have been stable for at least 3 months (decrease
 in forced vital capacity (FVC)< 10% and diffusing capacity of lung for carbon monoxide
 (DLco) < 15 % in 3 months), i.e. no significant changes in pulmonary function testing
 and stable medication in terms of ILD (e.g., corticosteroids, immunosuppressants)

 -  Mean pulmonary vascular resistance (PVR) > 400 dyne sec cm-5 or mean pulmonary
 arterial pressure (PAP mean) > 30 mmHg

 -  Pulmonary capillary wedge pressure (PCWP) < 15 mmHg

 -  Hemodynamic parameters at baseline (PAP, PCWP, cardiac output [CO], systemic mean
 arterial pressure [SAP])

 -  High resolution computer tomography (HRCT) (should not be older than 12 months prior
 start of the study)

 -  Heart rate > 55 beats per minute (BPM) and < 105 BPM at rest

 -  Systolic blood pressure (SBP) > 90 mmHg

 -  World Health Organisation (WHO) functional class II, III and IV

 -  6 Minute Walking Test (6MWT) > 100m and < 450 m

 -  Stable controlled arterial hypertension according to current guidelines

 -  Women of childbearing potential will be included in the study if the pregnancy test is
 negative and combination of condoms with a safe and highly effective contraception
 method (hormonal contraception with implants or combined oral contraceptives, certain
 intra-uterine devices [IUDs]) is granted.

 Exclusion Criteria:

 -  Co-medication:

 -  Patients pretreated with specific medication for pulmonary arterial hypertension
 (PAH) like endothelin receptor antagonists, prostaglandins or phosphodiesterase
 type 5 (PDE 5) blockers are excluded from the trial.

 -  Requirement for concomitant use of nitrates are contraindicated.

 -  Pre-existing clinically relevant lung disease other than ILD including.

 -  Bronchial asthma and Chronic Obstructive Pulmonary Disease (COPD) with a forced
 expiratory volume in one second (FEV1)/FVC <60% pred., active tuberculosis

 -  Pulmonary hypertension of another WHO group (I, II, IV and V)

 -  Severe congenital abnormalities of the lungs, thorax and diaphragm

 -  Clinical or radiological evidence of a pulmovenoocclusive disease (PVOD)

 -  Systemic hemodynamics

 -  Acute or severe chronic left heart failure (ejection fraction (EF) < 50%)

 -  Severe coronary artery disease (CAD; EF < 50%); CAD patients must be asymptomatic
 and stable

 -  Congenital or acquired valvular or myocardial disease if clinically significant
 apart from tricuspid valvular insufficiency due to pulmonary hypertension

 -  Pulmonary function

 -  TLC predicted < 30%

 -  FEV1 (related to FVC) < 60% predicted

 -  Blood gases at room air

 -  Arterial partial carbon dioxide pressure (Pa CO2) > 45 mmHg

 -  Arterial partial oxygen pressure (Pa O2) < 50 mmHg at O2 supply >/= 4 L/min

 -  Peripheral organ function

 -  Moderate or severe hepatic insufficiency (Child-Pugh Class Band C and/or total
 bilirubin > 2.5 mg/dl (0.043 mmol/L); and/or hepatic transaminases >3 upper limit
 normal [ULN])

 -  Moderate or severe renal insufficiency (creatinine > 2 mg/dl) or creatinine
 clearance according to Cockroft-Gault formula < 35 mL/ min