Olivia C Leavy, Anne F Goemans, Amy D Stockwell, Richard J Allen, Beatriz Guillen-Guio, Tamara Hernandez-Beeftink, Ayodeji Adegunsoye, Helen L Booth; CleanUP-IPF Investigators of the Pulmonary Trials Cooperative; Paul Cullinan, William A Fahy, Tasha E Fingerlin, Harvinder S Virk, Ian P Hall, Simon P