Database	Search terms	Date searched
US National Institutes of Health (clinicaltrials.gov)	ADVANCED SEARCH FORM Condition or disease: cystic fibrosis Other terms: ataluren OR nonsense OR stop codon Study type: Interventional Studies (Clinical Trials)	4 October 2022
WHO International Clinical Trials Registry Platform (ICTRP) (trialsearch.who.int/)	SEARCH 1 (Basic Search Form) cystic fibrosis AND (ataluren OR PTC124)   SEARCH 2 (Basic Search Form) cystic fibrosis AND nonsense   SEARCH 3 (Basic Search Form) cystic fibrosis AND stop codon	4 October 2022
European Medicines Agency (www.clinicaltrialsregister.eu)	SEARCH 1 (Basic Search Form) cystic fibrosis AND (ataluren OR PTC124)   SEARCH 2 (Basic Search Form) cystic fibrosis AND nonsense   SEARCH 3 (Basic Search Form) cystic fibrosis AND stop codon	4 October 2022