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Table 1 Synthesis of the data reported in selected clinical trials. Terms in bold within the 'Intervention' column indicate the specific medical intervention/treatment assessed in the trial. Terms in bold within the 'Outcomes' column indicate the trial's endpoints

From: Targeted drugs and Psycho-oncological intervention for breast cancer patients

Study

Intervention

Patients group

Number of patients

Length of the study

Outcomes

Miller et al. 2007 [9]

Randomized, phase 3 trial.

Metastatic breast cancer

N = 722 (Control N = 354; Invervention N = 368)

2.5 years

PFS> 5.9 months (p < 0.001)

Efficacy and safety on paclitaxel with or without bevacizumab

OS >1.5 months (p < 0.16)

Spiegel et al. 2007 [33]

Randomized prospective trial on supportive-expressive group therapy

Metastatic breast cancer

N = 125 (Control N = 61; Intervention N = 64)

>1 year (14 years follow-up)

OS <2.6 months (p = 0.73)

Kissane et al. 2007 [13]

Randomized controlled trial on supportive-expressive group therapy

Metastatic breast cancer (stage IV)

N = 227 (Control N = 80; Intervention N = 147)

>1 year (2 years follow-up)

OS >5.7 months (p = 0.60)

EORTC QoL C-30

Social functioning scale F = 4.56 (p = 0.03), Impact of Event Scale F = 4.61 (p = 0.04)

Mini-MAC

helpless/hopelessness F = 4.89 (p = 0.03)

Von Minckwitz et al. 2012 [11]

Randomized clinical trial on neoadjuvant therapy with or without bevacizumab

Non-metastatic HER2-negative breast cancer

N = 1948 (Control N = 969; Intervention N = 956)

2.5 years

pCR >4 % (p = 0.04)

Bear et al. 2012 [10]

Randomized clinical trial on neoadjuvant therapy with or without bevacizumab

Non-metastatic HER2-negative breast cancer

N = 1206 (Control N = 596; Intervention N = 595)

2.5 years

pCR >6.3 % (p = 0.02)

Andersen et al. 2008 [14]

Randomized clinical trial on psychological intervention

Non-metastatic breast cancer (stage IIA, IIIA or IIIB)

N = 227 (Control N = 113; Intervention N = 114)

1 year (11 years follow-up)

OS >1.3 years (p = 0.016)

Kissane et al. 2004 [15]

Randomized controlled trial on cognitive-existential group therapy

Non-metastatic breast cancer (stage I or II)

N = 303 (Control N = 149; Intervention N = 154)

2 years (5 years follow-up)

OS <3.5 months (p = 0.31)