Table 1 Characteristics of eligible studies.

From: Survival benefit of platinum-based regimen in early stage triple negative breast cancer: A meta-analysis of randomized controlled trials

Study

Latest update

Type of trial (registry number)

Enrollment period

Age range (year)

Chemo-regimen-Control arm-Platinum arm

TNBC NO.-Control-Platinum

Carboplatin dosage

TNM stage

Stage of therapy

Median follow-up

HR (95% CI)

DFS

OS

CALGB 40603

2015

RCT(NCT00861705)

2009.5−2012.8

18–70

−P/PB*12w-4ddAC−P/PBCb*12w-4ddAC

−212−221

AUC 6, d1, q3w

Stage II/III

Neoadjuvant

39m

0.84 (0.58−1.22)

1.15 (0.74–1.79)

Khalid

2015

RCT(NS)

2008.1−2014.12

17–65

−3CEF-3T−3CEF-3TCb-1yCM

−80−78

AUC 5, d1, q3w

Stage II/III;T > 1 cm/LN+

Adjuvant

52m

0.61 (0.39–0.96)

0.56 (0.32–0.98)

Zhang

2016

RCT(NS)

2006.5−2012.12

24–73

−4-6EP−4-6PCb

−44−47

AUC 5, d1, q3w

Stage II/III

Neoadjuvant

55m

0.56 (0.25–1.27)

0.70 (0.22–2.26)

GeparSixto

2018

RCT(NCT01426880)

2011.8−2012.12

48

−PM*18w+Beva−PMCb*18w+Beva

−157−158

AUC 1.5/2, d1, qw

Stage II/III

Neoadjuvant

47.3m

0.56 (0.34–0.93)

0.60 (0.32–1.12)

PATTERN

2020

RCT(NCT01216111)

2011.6−2016.4

18–70

−3CEF-3T-6PCb

−322−325

AUC 2, d1, 8, 15, q28d

N1-3, or T1c-4aN0, M0

Adjuvant

62m

0.65 (0.44–0.96)

0.71 (0.42–1.22)

Du

2020

RCT(NS)

2009.7−2015.10

48

−4EC-4T-6TCb

−154−154

AUC 5, d1, q3w

N1-3, or T1c-4aN0, M0

Adjuvant

66.9m

1.11 (0.65–1.89)

1.27 (0.49–3.32)

Iwase

2020

RCT(UMIN000003355)

2010.3−2011.9

47 (30–70)

−3T-3CEF-3TCb-3CEF

−38−37

AUC 5, d1, q3w

Stage II/III A

Neoadjuvant

6.6y

0.22 (0.06–0.82)

0.12 (0.01–0.96)

  1. Definition of TNBC: in CALGB 40603: (ER/PR < 10%+, HER2−); in other eligible studies: (ER/PR−, HER2−).
  2. When age range was not shown, the median age is filled in.
  3. Abbreviations: RCT randomized controlled trials, TNBC triple-negative breast cancer, P/T paclitaxel/docetaxel, E epirubicin, C cyclophosphamide/CTX, F 5-fuorouracil, A anthracycline, Cb carboplatin, 1yCM oral metronomic chemotherapy of (CTX + MTX) for 1 year, PM paclitaxel+nonpegylated liposomal doxorubicin (NPLD, MyocetVR), B/Beva bevacizumab. No. number.