Table 1

Disease characteristics and demographics in patients with PAH-CTD at PATENT-1 baseline

CharacteristicOverall PAH-CTD
(n=111)
PAH-SSc
(n=66)
PAH-other defined CTD
(n=39)
Age, mean±SD (years)57±1463±1150±14
Female, n (%)98 (88)57 (86)36 (92)
Time from first diagnosis of PH, mean±SD (months)27±3626±3526±38
6MWD, mean±SD (m)352±75340±76364±74
WHO FC I/II/III/IV (%)*5/36/57/2†2/35/59/3†10/36/54/0
PAH-specific pretreatment, n (%)70 (63)45 (68)23 (59)
 Pretreated with ERA59 (53)39 (59)19 (49)
 Pretreated with PCA10 (9)6 (9)3 (8)
 Pretreated with ERA and PCA1 (1)01 (3)
Immunomodulating pretreatment, n (%)‡27 (24)16 (24)10 (26)
 Pretreated with immunosuppressive agents§21 (19)13 (20)8 (21)
 Pretreated with antineoplastic agents¶14 (13)6 (9)7 (18)
 Pretreated with endocrine therapy**1 (1)1 (2)0
 Pretreated with other immunomodulating agents1 (1)01 (3)
  • *Not all percentages add up to 100 due to rounding.

  • †Data missing for one patient.

  • ‡Non-steroidal anti-inflammatory drugs or disease-modifying antirheumatic drugs.

  • §Azathioprine, leflunomide, methotrexate, mizoribine, mycophenolate mofetil, mycophenolate sodium, tacrolimus.

  • ¶Celecoxib, cyclophosphamide, methotrexate.

  • **Estradiol valerate.

  • 6MWD, 6-minute walking distance; CTD, connective tissue disease; ERA, endothelin receptor antagonist; PAH, pulmonary arterial hypertension; PCA, prostacyclin analogue; PH, pulmonary hypertension; SSc, systemic sclerosis; WHO FC, WHO functional class.