Estudios originales

Efficacy and safety of goserelin vs. leuprolide in premenopausal breast cancer patients receiving adjuvant endocrine therapy: A retrospective cohort study

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Baseline characteristics of the study subjects.
CharacteristicsLeuprolide (N=90)Goserelin (N=97)P-value95% CI
Age (years)44.76±0.7443.99±0.640.4320.77 (-0.58 to 2.12)
Married (n)85 (94.44%)92 (94.85%)0.903-0.41 (-6.88 to 6.06)
Reproductive Status (n)80 (88.89%)90 (92.78%)0.357-3.89 (-12.18 to 4.40)
Body mass index (kg/m2)21.63±2.7121.81±2.190.598-0.18 (-0.90 to 0.54)
Age at menarche (years)14.17±0.7214.42±0.690.300-0.25 (-0.55 to 0.05)
Surgery type0.832
Mastectomy51 (56.67%)53 (54.64%)2.03 (-12.22 to 16.28)
Breast-conserving surgery39 (43.33%)44 (45.36%)-2.03 (-16.28 to 12.22)
Stage0.437
I13 (14.44%)11 (11.34%)3.10 (-6.52 to 12.72)
II57 (63.33%)61 (62.89)0.44 (-13.40 to 14.28)
III20 (22.23%)25 (25.77%)-3.55 (-15.77 to 8.69)
ER Status (n)0.512
≤50%12 (13.33%)15 (15.46%)
>50%78 (86.67%)82 (84.54%)2.13 (-7.92 to 12.18)
PR Status (n)0.721
≤50%21 (23.33%)26 (26.80%)
>50%69 (76.67%)71 (73.20%)3.47 (-8.94 to 15.88)
Ki-67 Status (n)0.667
≤20%57 (63.33%)65 (67.01%)
>20%33 (36.67%)32 (32.99%)3.68 (-9.98, to 17.34)
pT Stage0.568
T035 (38.89%)34 (35.05%)3.84 (-10.00 to 17.68)
T130 (33.33%)36 (37.11%)-3.78 (-17.46, to 9.90)
T223 (25.56%)24 (24.74%)0.82 (-11.63 to 13.27)
T32 (2.22%)3 (3.10%)-0.88 (-5.49 to 3.73)
pN Stage0.418
N045 (50%)52 (53.81%)-3.61 (-18.14 to 10.52)
N138 (42.22%)33 (34.02%)8.20 (-5.70 to 22.10)
N26 (6.67%)9 (9.28%)-2.61 (-10.35 to 5.13)
N31 (1.11%)3 (3.09%)-1.98 (-6.06 to 2.10)
Chemotherapy regimen0.723
AC13 (14.44%)16 (16.49%)-2.05 (-12.40 to 8.30)
AC followed by taxane77 (85.56%)81 (83.51%)2.05 (-8.30 to 12.40)
Taxane type0.711
Paclitaxel34 (37.78%)39 (40.21%)−2.43 (−16.38 to 11.52)
Docetaxel56 (62.22%)58 (59.79%)2.43 (−11.52 to 16.38)

Abbreviations: ER, estrogen receptor. PR, progesterone receptor. AC, doxorubicin and cyclophosphamide. GnRH, gonadotropin-releasing hormone.

Source: Prepared by the authors of this study.