Tracleer Bosentan Tablets
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For patients with pulmonary arterial hypertension (PAH, WHO Group I)
WHO Class II, III, IV


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Patient with surgically repaired VSD, referral to
investigate pulmonary arterial hypertension

Adapted from information provided by physicians at PH centers

William T

 31-year-old male
 Unmarried
 Active throughout childhood but limited ability to participate in competitive sports

 

  Weight: 214 lb
  Height: 5'11"



History

  Diagnosed with VSD at 1 year of age due to signs of left-sided congenital heart failure
  VSD surgically repaired at 16 months of age

Symptoms

  At age 28 years, developed palpitations and irregular wide tachycardia >200 bpm
  Exertional dyspnea
  Lower extremity edema
  Orthopnea at rest



Reasons to investigate PAH

  Tachycardia
  Repaired VSD
  Progressive exertional dyspnea and orthopnea at rest



Physical examination

  Vital signs: BP 100/62 mm Hg; HR 74 bpm; RR 24 bpm; O2 sat 93% (room air)
  CV: RV systolic heave at left sternal border and left midprecordium, palpable pulmonary valve closure, normal S1, loud P2, 3/6 holosystolic murmur loudest at left midsternal and lower sternal borders, RV S4 gallop
  Lungs: clear to auscultation bilaterally, no wheezes or crackles
  Neck: JVP 13 cm with visible a and v waves
  Chest: well-healed midline sternotomy scar
  Abdomen: hepatomegaly with pulsatile liver
  Extremities:
—  2+ bilateral pitting edema to the knees
—  No clubbing or cyanosis
—  Normal pulses

Laboratory findings

  CBC unremarkable
—  Chem-7 normal
—  LFTs normal
  BNP: 1200 pg/mL

Other Findings

  6MWD: 205 m
  12-lead ECG demonstrated sinus rhythm with first-degree AV block, right axis deviation, RBBB with RVH, and associated ST- and T-wave abnormalities, LA abnormality



Chest x-ray findings

  Cardiomegaly, with evidence of RA and RV enlargement
  No significant increase in lung vascularity, suggesting absence of significant left-to-right shunt



Echocardiogram findings

  Small, D-shaped LV with preserved systolic function
  No residual VSD shunt
  Severely dilated RA and RV
  Moderately high-pressure tricuspid regurgitation of >4 m/sec
  Dilated IVC with minimal change on inspiration (3.6 cm; normal <2.5 cm)
—  Consistent with elevated RAP of
15 to 20 mm

Tracleer is indicated for the treatment of pulmonary arterial hypertension (PAH, WHO Group I) in patients with WHO Class II-IV symptoms, to improve exercise ability and decrease the rate of clinical worsening. Patients with WHO Class II symptoms showed reduction in the rate of clinical deterioration and a trend for improvement in walk distance. Physicians should consider whether these potential benefits are sufficient to offset liver injury in WHO Class II patients, which may preclude future use as their disease progresses.

Important safety information

Because of the associated risks, Tracleer may be prescribed only through the Tracleer Access Program.

Potential for serious liver injury (including, after prolonged treatment, rare cases of liver failure and unexplained hepatic cirrhosis in a setting of close monitoring)—Liver monitoring of all patients is essential prior to initiation of treatment and monthly thereafter.

High potential for major birth defects—Pregnancy must be excluded and prevented through the use of reliable forms of birth control; monthly pregnancy tests should be obtained.

Contraindicated for use with cyclosporine A and glyburide.

Please see full prescribing information including BOXED WARNING.

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