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Table 1 Timeline of events from trial opening to adding the new arms

From: A platform trial in practice: adding a new experimental research arm to the ongoing confirmatory FLAIR trial in chronic lymphocytic leukaemia

Date

Task

Q3 2014

Stage 1 open to recruitment September 2014: FCR vs IR

Q3 2015

Emerging response data for venetoclax

FLAIR recruiting ahead of target

Decision to progress amendment

Q4 2015

Initial DMEC/TSC review and provisional approval

CRUK amendment application

AbbVie funding application

NCRI CSG review

Q1 2016

AbbVie agreed to support amendment subject to contract

Q2 2016

CRUK approval

Janssen agreed to support amendment subject to contract

Protocol amendments began

Q1 2017

Amendments to protocol and PIS finalised

DMEC/TSC final approval

MHRA substantial amendments submitted

Q2 2017

Ethics substantial amendments submitted

Preliminary safety data for I+V became available

CRFs and database amendments finalised

Contracts signed and all approvals had been received

Q3 2017

Stage 2 open to recruitment: FCR vs IR vs I vs I+V

Amendment randomisation became live July 2017

Original randomisation system switched off August 2017