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result sql = Phase II randomized study of neoadjuvant everolimus plus letrozole compared with placebo plus letrozole in patients with estrogen receptor-positive breast cancer.
Phase II randomized study of neoadjuvant everolimus plus letrozole compared with placebo plus letrozole in patients with estrogen receptor-positive breast cancer.
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char = d;code = 100
char = ;code = 32
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = f;code = 102
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = 2;code = 50
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = e;code = 101
char = k;code = 107
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = t;code = 116
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = (;code = 40
char = i;code = 105
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = d;code = 100
char = a;code = 97
char = y;code = 121
char = ;code = 32
char = 1;code = 49
char = 5;code = 53
char = );code = 41
char = .;code = 46
char = ;code = 32
char = S;code = 83
char = a;code = 97
char = m;code = 109
char = p;code = 112
char = l;code = 108
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = s;code = 115
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = P;code = 80
char = I;code = 73
char = 3;code = 51
char = K;code = 75
char = ;code = 32
char = m;code = 109
char = u;code = 117
char = t;code = 116
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = a;code = 97
char = t;code = 116
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = P;code = 80
char = I;code = 73
char = K;code = 75
char = 3;code = 51
char = C;code = 67
char = A;code = 65
char = );code = 41
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = r;code = 114
char = m;code = 109
char = a;code = 97
char = c;code = 99
char = o;code = 111
char = d;code = 100
char = y;code = 121
char = n;code = 110
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = g;code = 103
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = K;code = 75
char = i;code = 105
char = 6;code = 54
char = 7;code = 55
char = ,;code = 44
char = ;code = 32
char = p;code = 112
char = h;code = 104
char = o;code = 111
char = s;code = 115
char = p;code = 112
char = h;code = 104
char = o;code = 111
char = -;code = 45
char = S;code = 83
char = 6;code = 54
char = ,;code = 44
char = ;code = 32
char = c;code = 99
char = y;code = 121
char = c;code = 99
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = D;code = 68
char = 1;code = 49
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = c;code = 99
char = e;code = 101
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = (;code = 40
char = P;code = 80
char = g;code = 103
char = R;code = 82
char = );code = 41
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = i;code = 105
char = m;code = 109
char = m;code = 109
char = u;code = 117
char = n;code = 110
char = o;code = 111
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = o;code = 111
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = m;code = 109
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = y;code = 121
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = R;code = 82
char = E;code = 69
char = S;code = 83
char = U;code = 85
char = L;code = 76
char = T;code = 84
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = R;code = 82
char = e;code = 101
char = s;code = 115
char = p;code = 112
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = l;code = 108
char = p;code = 112
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = l;code = 108
char = i;code = 105
char = m;code = 109
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = m;code = 109
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = h;code = 104
char = i;code = 105
char = g;code = 103
char = h;code = 104
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = z;code = 122
char = o;code = 111
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = o;code = 111
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = i;code = 105
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = b;code = 98
char = o;code = 111
char = ;;code = 59
char = ;code = 32
char = 6;code = 54
char = 8;code = 56
char = .;code = 46
char = 1;code = 49
char = %;code = 37
char = ;code = 32
char = v;code = 118
char = ;code = 32
char = 5;code = 53
char = 9;code = 57
char = .;code = 46
char = 1;code = 49
char = %;code = 37
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = w;code = 119
char = h;code = 104
char = i;code = 105
char = c;code = 99
char = h;code = 104
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = g;code = 103
char = n;code = 110
char = i;code = 105
char = f;code = 102
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = n;code = 110
char = n;code = 110
char = e;code = 101
char = d;code = 100
char = ,;code = 44
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = e;code = 101
char = -;code = 45
char = s;code = 115
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = d;code = 100
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = ;code = 32
char = =;code = 61
char = ;code = 32
char = 0;code = 48
char = .;code = 46
char = 1;code = 49
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = ;code = 32
char = (;code = 40
char = P;code = 80
char = ;code = 32
char = =;code = 61
char = ;code = 32
char = .;code = 46
char = 0;code = 48
char = 6;code = 54
char = 2;code = 50
char = );code = 41
char = .;code = 46
char = ;code = 32
char = M;code = 77
char = a;code = 97
char = r;code = 114
char = k;code = 107
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = c;code = 99
char = e;code = 101
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = y;code = 121
char = c;code = 99
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = D;code = 68
char = 1;code = 49
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = c;code = 99
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = b;code = 98
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = t;code = 116
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = m;code = 109
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = d;code = 100
char = r;code = 114
char = a;code = 97
char = m;code = 109
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = w;code = 119
char = n;code = 110
char = r;code = 114
char = e;code = 101
char = g;code = 103
char = u;code = 117
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = p;code = 112
char = h;code = 104
char = o;code = 111
char = s;code = 115
char = p;code = 112
char = h;code = 104
char = o;code = 111
char = -;code = 45
char = S;code = 83
char = 6;code = 54
char = ;code = 32
char = o;code = 111
char = c;code = 99
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = l;code = 108
char = i;code = 105
char = m;code = 109
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = m;code = 109
char = .;code = 46
char = ;code = 32
char = A;code = 65
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = l;code = 108
char = i;code = 105
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = p;code = 112
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = f;code = 102
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = K;code = 75
char = i;code = 105
char = 6;code = 54
char = 7;code = 55
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = n;code = 110
char = a;code = 97
char = t;code = 116
char = u;code = 117
char = r;code = 114
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = l;code = 108
char = o;code = 111
char = g;code = 103
char = a;code = 97
char = r;code = 114
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = m;code = 109
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = g;code = 103
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = K;code = 75
char = i;code = 105
char = 6;code = 54
char = 7;code = 55
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = 1;code = 49
char = ;code = 32
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = d;code = 100
char = a;code = 97
char = y;code = 121
char = ;code = 32
char = 1;code = 49
char = 5;code = 53
char = ,;code = 44
char = ;code = 32
char = o;code = 111
char = c;code = 99
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = 5;code = 53
char = 2;code = 50
char = ;code = 32
char = (;code = 40
char = 5;code = 53
char = 7;code = 55
char = %;code = 37
char = );code = 41
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = 9;code = 57
char = 1;code = 49
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = l;code = 108
char = i;code = 105
char = m;code = 109
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = m;code = 109
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = 2;code = 50
char = 5;code = 53
char = ;code = 32
char = (;code = 40
char = 3;code = 51
char = 0;code = 48
char = %;code = 37
char = );code = 41
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = 8;code = 56
char = 2;code = 50
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = b;code = 98
char = o;code = 111
char = ;code = 32
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result sql = PURPOSE : Cross-talk between the estrogen receptor (ER) and the phosphoinositide-3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) pathways is a mechanism of resistance to endocrine therapy, and blockade of both pathways enhances antitumor activity in preclinical models. This study explored whether sensitivity to letrozole was enhanced with the oral mTOR inhibitor, everolimus (RAD001).

PATIENTS AND METHODS : Two hundred seventy postmenopausal women with operable ER-positive breast cancer were randomly assigned to receive 4 months of neoadjuvant treatment with letrozole (2.5 mg/day) and either everolimus (10 mg/day) or placebo. The primary end point was clinical response by palpation. Mandatory biopsies were obtained at baseline and after 2 weeks of treatment (ie, day 15). Samples were assessed for PI3K mutation status (PIK3CA) and for pharmacodynamic changes of Ki67, phospho-S6, cyclin D1, and progesterone receptor (PgR) by immunohistochemistry.

RESULTS : Response rate by clinical palpation in the everolimus arm was higher than that with letrozole alone (ie, placebo; 68.1% v 59.1%), which was statistically significant at the preplanned, one-sided, alpha = 0.1 level (P = .062). Marked reductions in progesterone receptor and cyclin D1 expression occurred in both treatment arms, and dramatic downregulation of phospho-S6 occurred only in the everolimus arm. An antiproliferative response, as defined by a reduction in Ki67 expression to natural logarithm of percentage positive Ki67 of less than 1 at day 15, occurred in 52 (57%) of 91 patients in the everolimus arm and in 25 (30%) of 82 patients in the placebo arm (P < .01). The safety profile was consistent with historical results of everolimus monotherapy; grades 3 to 4 adverse events occurred in 22.6% of patients who received everolimus and in 3.8% of patients who received placebo.

CONCLUSION : Everolimus significantly increased letrozole efficacy in neoadjuvant therapy of patients with ER-positive breast cancer.

Publication: J. Clin. Oncol. 2009 Jun 1 ;27(16)::2630-7. :doi: 10.1200/JCO.2008.18.8391.
Publication Date: 2009 Jun 1
Study Author(s): Baselga, José;Semiglazov, Vladimir;van Dam, Peter;Manikhas, Alexey;Bellet, Meritxell;Mayordomo, José;Campone, Mario;Kubista, Ernst;Greil, Richard;Bianchi, Giulia;Steinseifer, Jutta;Molloy, Betty;Tokaji, Erika;Gardner, Humphrey;Phillips, Penny;Stumm, Michael;Lane, Heidi A;Dixon, J Michael;Jonat, Walter;Rugo, Hope S;
Institution: Medical Oncology Department, Vall d'Hebron University Hospital, P Vall d'Hebron, Barcelona, Spain. [email protected]
Shortcut link to this study:
PURPOSE : Cross-talk between the estrogen receptor (ER) and the phosphoinositide-3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) pathways is a mechanism of resistance to endocrine therapy, and blockade of both pathways enhances antitumor activity in preclinical models. This study explored whether sensitivity to letrozole was enhanced with the oral mTOR inhibitor, everolimus (RAD001).

PATIENTS AND METHODS : Two hundred seventy postmenopausal women with operable ER-positive breast cancer were randomly assigned to receive 4 months of neoadjuvant treatment with letrozole (2.5 mg/day) and either everolimus (10 mg/day) or placebo. The primary end point was clinical response by palpation. Mandatory biopsies were obtained at baseline and after 2 weeks of treatment (ie, day 15). Samples were assessed for PI3K mutation status (PIK3CA) and for pharmacodynamic changes of Ki67, phospho-S6, cyclin D1, and progesterone receptor (PgR) by immunohistochemistry.

RESULTS : Response rate by clinical palpation in the everolimus arm was higher than that with letrozole alone (ie, placebo; 68.1% v 59.1%), which was statistically significant at the preplanned, one-sided, alpha = 0.1 level (P = .062). Marked reductions in progesterone receptor and cyclin D1 expression occurred in both treatment arms, and dramatic downregulation of phospho-S6 occurred only in the everolimus arm. An antiproliferative response, as defined by a reduction in Ki67 expression to natural logarithm of percentage positive Ki67 of less than 1 at day 15, occurred in 52 (57%) of 91 patients in the everolimus arm and in 25 (30%) of 82 patients in the placebo arm (P < .01). The safety profile was consistent with historical results of everolimus monotherapy; grades 3 to 4 adverse events occurred in 22.6% of patients who received everolimus and in 3.8% of patients who received placebo.

CONCLUSION : Everolimus significantly increased letrozole efficacy in neoadjuvant therapy of patients with ER-positive breast cancer.
PMID: 19380449

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