“…SSc-ILD was diagnosed using HRCT criteria in 5 RCTs (SLS-II, 2016 [ 7 ]; Naidu G.S.R.S.N.K., 2020 [ 25 ]; SENSCIS, 2019 [ 10 ]; Acharya, N., 2019 [ 27 ]; Hsu, V.M., 2018 [ 28 ]), HRCT plus biopsy, PFTs or biopsy in 3 RCTs (SLS-I, 2006 [ 8 ]; Hoyles, R.K., 2006 [ 24 ]; Sircar, G., 2018 [ 26 ]), and biopsy only in the remaining RCT (Domiciano, D.S., 2011 [ 23 ]). Domiciano, D.S., 2011 [ 23 ] enrolled only SSc-ILD patients with biopsy-proven nonspecific interstitial pneumonia (NSIP), while Naidu, G.S.R.S.N.K., 2020 [ 25 ], Sircar, G., 2018 [ 26 ], and Acharya, N., 2019 [ 27 ] enrolled patients with both NSIP and usual interstitial pneumonia (UIP). SSc-ILD pattern was not specified in the remaining RCTs (see Supplementary material 1.2, page 6 ).…”