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Table 1 Cohorts used to compare long term extrapolations for newly diagnosed multiple myeloma including the number of patients included and data cuts

From: Extrapolating empirical long-term survival data: the impact of updated follow-up data and parametric extrapolation methods on survival estimates in multiple myeloma

Data Source

Drug

Mean age of cohort

Years of inclusion

Start date Inclusion

End date Inclusion

Sample Size

Data cuts

Maximum Follow-up (years)

Minimum Potential Follow-up (years)

Horizon RMST (years)

Horizon lifetime RMST (years)

HOVON49

MP

74

2002–2007

09-19-2002

07-16-2007

168

2005, 2008, 2010, 2012

3, 6, 8, 10

n.a.,1,3,5

11

35

HOVON49

Thal.

74

2002–2007

09-19-2002

06-27-2007

166

2005, 2008, 2010, 2012

3, 6, 8, 10

n.a.,1,3,5

11

35

PHAROS

MP

76

2004–2009

01-15-2004

01-15-2009

208

2007, 2010, 2012, 2014, 2017

3, 6, 8, 10,13

n.a.,1,3,5,8

14

35

PHAROS

Thal.

72

2005–2010

01-01-2005

01-01-2010

552

2008, 2011, 2013, 2015, 2018

3, 6, 8, 10, 13

n.a.,1,3,5,8

14

35

PHAROS

Bort.

64

2006–2011

01-01-2006

01-01-2011

122

2009, 2012,2014, 2016, 2019

3, 6, 8, 10, 13

n.a.,1,3,5,8

14

35

NKR+

Bort.

74

2014–2016

01-10-2014

01-10-2016

637

2017, 2020, 2022

3, 6, 8

1,4,6

8

35

  1. Bort = Bortezomib based, HOVON = Dutch Haemato-oncology Foundation for Adults in the Netherlands, MP = melphalan + prednisone, NKR + = Dutch National Cancer Registry, PHAROS = Population based HAematological Registry for Observational Studies, RMST = Restricted mean survival time, Thal.= Thalidomide based