NCT01604135.

Trial name or title	Collagen crosslinking for keratoconus‐‐a randomized controlled clinical trial (CXL‐RCT)
Methods	RCT
Participants	Target: 200
Interventions	CXL with riboflavin and UVX
Outcomes	Kmax (non‐progression)
Starting date	May 2012
Contact information	Madeleine Zetterberg, 00463431000, madeleine.zetterberg@anatcell.gu.se
Notes	NCT01604135

BSCVA: best spectacle‐corrected visual acuity
 CXL: Collagen cross‐linkage
 Kmax: maximal keratometry
 RCT: randomised controlled trial
 UVA: ultraviolet A