Study	Reason for exclusion
Beaudoin 2015	A short‐term comparison of a non‐pharmacological approach (exercise) to controlling glucose in people with CF.
Borowitz 2005	A subset of entire cohort were randomized for pancreatic enzymes, not for diabetic medications. Diabetic outcomes not reported.
Chernoff 2002	Participants with diabetes did not have CF and participants with CF did not have diabetes.
Driscoll 2009	Intervention was to promote treatment adherence in children with Type 1 diabetes or CF and not a comparison of treatments for CFRD.
Eiel 2018	Reported on glucose trends in people with CF who were pancreatic insufficient but did not have CFRD.
Franzese 2005	Not a RCT.
Geyer 2019	A trial of people with glucose intolerance and not CFRD.
Hardin 2009	Cohort study, not a RCT.
König 2005	Not a RCT.
Mahroukh 2005	Not a RCT.
Marshall 2005	Not a RCT.
Milla 2005	Not a RCT.
Minicucci 2012	A trial of people with glucose intolerance and not CFRD.
NCT01149005	Participants do not have CFRD so do not meet review's inclusion criteria.
NCT02496780	Trial looking at insulin effects on protein turn over for pre‐diabetic people with CF.
Onady 2006	Not a RCT.
Peraldo 1998	Non‐randomized biochemical metabolic trial, longitudinal data analysis.
Reali 2006	Not a RCT, study of a single participant.
Sc 2010	Trial reported on glucose trends in people with CF who did not have CFRD during a pulmonary exacerbation.
Sulli 2007	Not a RCT, 3 case studies.
Teeter 2004	Trial of Type 1 diabetes not CFRD, participants with active lung disease excluded, participants with abnormal pulmonary function at screening excluded.
Ward 1999	Not a RCT. Treatment of participants with CFRD not detailed, longitudinal data analysis.

CF: cystic fibrosis
CFRD: cystic fibrosis‐related diabetes
RCT: randomized controlled trial