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Table 1 Characteristics of 29 selected systematic reviews

From: Wasted research when systematic reviews fail to provide a complete and up-to-date evidence synthesis: the example of lung cancer

Systematic review

Last search

Publication date

Number of trials

Funding source

Intervention

Comparator

Specific treatment

Different treatments lumped together

Different types of treatments lumped together

Bonfill 2002

Jul 2001

Apr 2001

1

Non-industry

CTx

PBO or BSC

No

Yes

No

Tassinari 2009

Jul 2008

Feb 2009

3

NR

CTx or EGFRTKI

BSC

No

Yes

Yes

Yang 2014

Dec 2013

May 2014

2

NR

EGFRTKI

PBO

No

Yes

No

Wong 2013‡

SMay 2012

Oct 2013

4

NR

EGFRTKI

CTx or PBO

No

Yes

Yes

Barlesi 2006

Feb 2005

Dec 2005

4

NR

DOC

CTx or BSC

No

Yes

Yes

Al-Saleh 2012

Jan 2010

Feb 2012

1

Industry

PEM

CTx

Yes

Yes

No

Perez-Moreno 2014

Apr 2012

Mar 2014

1

Non-industry

PEM

CTx

Yes

Yes

No

Jiang 2011

Feb 2010

Dec 2010

4

Non-industry

GEF

DOC

Yes

No

No

Qi 2012c

Mar 2012

Oct 2012

8

Non-industry

EGFRTKI

CTx

No

Yes

No

Gao 2013‡

NR

Jun 2013

3

NR

EGFRTKI

CTx

No

Yes

No

Lee 2014

Dec 2013

Apr 2014

7

Non-industry

EGFRTKI

CTx

No

Yes

No

Zhao 2014

Jul 2013

Apr 2014

6

Non-industry

EGFRTKI

CTx

No

Yes

No

Li 2014b

Jul 2013

Jul 2014

10

None

EGFRTKI

CTx

No

Yes

No

Vale 2014

Jan 2014

Nov 2014

14

Non-industry

EGFRTKI

CTx

No

Yes

No

Qi 2012a

Mar 2011

May 2011

8

NR

DOC + (CTx or TT)

DOC

No

Yes

Yes

Jin 2014*

Dec 2013

Sep 2014

12

Non-industry

DOC + (CTx or TT)

DOC

No

Yes

Yes

Qi 2012b

May 2011

Jan 2012

5

NR

PEM + (CTx or TT)

PEM

No

Yes

Yes

Sun 2014

Feb 2012

Apr 2014

4

NR

PEM + (CTx or TT)

PEM

No

Yes

Yes

Qi 2011

Jul 2011

Oct 2011

4

NR

CTx + VAN or VAN

CTx or EGFRTKI

Yes

Yes

Yes

Tao 2012

Sep 2011

Mar 2012

5

NR

CTx + VAN or VAN

CTx or EGFRTKI

Yes

Yes

Yes

Tassinari 2012

Jun 2010

Dec 2012

4

NR

DOC

CTx or EGFRTKI

No

Yes

Yes

Qi 2013

May 2012

Feb 2013

8

Non-industry

ERL + TT

ERL

No

Yes

No

Cui 2013

Dec 2011

Apr 2013

8

Non-industry

BEV + (CTx or EGFRTKI)

CTx or EGFRTKI

Yes

Yes

Yes

     

EGFRTKI

CTx or PBO

No

Yes

Yes

Li 2014a

Dec 2013

Apr 2014

14

None

CTx + TT

CTx

No

Yes

No

Liang 2014

Jan 2014

Oct 2014

10

Non-industry

MATKI + (CTx or EGFRTKI) or MATKI

CTx or EGFRTKI or PBO

No

Yes

Yes

Sun 2015

Oct 2014

Jan 2015

2

NR

BEV + EGFRTKI

EGFRTKI

No

Yes

No

Xiao 2015

Sep 2014

Feb 2015

5

Non-industry

CTx + EGFRTKI

CTx or EGFRTKI

No

Yes

Yes

Hawkins 2009†

Oct 2007

Apr 2009

6

Industry

DOC vs PEM vs ERL vs GEF

No

No

No

Popat 2015†

Mar 2014

Dec 2014

9

Industry

CTx vs TT vs CTx + TT vs (PBO or BSC)

No

No

No

  1. *Update of Qi 2012a; †network meta-analysis; ‡conference abstracts. BEV: bevacizumab; BSC: best supportive care; CTx: monochemotherapy; DOC: docetaxel; EGFRTKI: EGFR tyrosine kinase inhibitors; ERL: erlotinib; GEF: gefitinib; MATKI: multi-targeted antiangiogenic tyrosine kinase inhibitors; NR: not reported; PBO: placebo; PEM: pemetrexed; TT: targeted therapy; VAN: vandetanib