Introduction: Human epidermal growth factor receptor 2 (HER-2) targeted therapy regimens can improve tumor response in HER-2-positive metastatic breast cancer (MBC), with overall survival benefits. Objective: We evaluated the efficacy of dual HER-2 blockade combined with chemotherapy for HER-2-positive MBC patients as a first-line therapy in our patient population. Patients and Methods: We identified 75 patients at King Faisal Specialist Hospital and Research Center that received trastuzumab, pertuzumab, and docetaxel as a first-line therapy in HER-2 positive MBC in 2013–2016. Results: Median age at diagnosis was 45 years; 54.7% were estrogen receptor (ER)-positive. 10% of patients presented with only bone metastasis. The median follow-up time was 36 months with an objective response rate of 74.7% (complete response [CR] 18.7%; partial response [PR] 56%). The 5-year progression-free survival (PFS) and overall survival (OS) were 21% and 71.9% respectively, with a median PFS of 36 months (95% confidence interval [CI] 23.6–48.4). The 5-year OS for ER-negative and ER-positive patients was 93.9% and 59.4% respectively (p = 0.189); 23 patients experienced grade 1/2 toxicity and 2 patients had grade 3/4 toxicity. In terms of OS and PFS, the site of metastasis did not make any significant difference. Conclusions: First line pertuzumab, trastuzumab, and docetaxel for HER-2-positive MBC patients was found to be an effective and safe therapy in the Saudi population. This finding was consistent with the results seen in the CLEOPATRA trials.

1.
Swain
SM
,
Baselga
J
,
Kim
SB
,
Ro
J
,
Semiglazov
V
,
Campone
M
, et al.;
CLEOPATRA Study Group
.
Pertuzumab, trastuzumab, and docetaxel in HER2-positive metastatic breast cancer
.
[Internet]
.
N Engl J Med
.
2015
Feb
;
372
(
8
):
724
34
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/25693012
[PubMed]
0028-4793
2.
Baselga
J
,
Cortés
J
,
Kim
SB
. Im S-A, Hegg R, Im Y-H, et al. Pertuzumab plus trastuzumab plus docetaxel for metastatic breast cancer. N Engl J Med [Internet].
2012
Jan 12;366(2):109–19. Available from: http://www.ncbi.nlm.nih.gov/pubmed/22149875
3.
Swain
SM
,
Kim
SB
,
Cortés
J
,
Ro
J
,
Semiglazov
V
,
Campone
M
, et al.
Pertuzumab, trastuzumab, and docetaxel for HER2-positive metastatic breast cancer (CLEOPATRA study): overall survival results from a randomised, double-blind, placebo-controlled, phase 3 study
.
[Internet]
.
Lancet Oncol
.
2013
May
;
14
(
6
):
461
71
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/23602601
[PubMed]
1470-2045
4.
Alsayed
A
,
Badran
A
,
Elashwah
A
,
Gad
A
,
Shahin
A
,
Omar
A
, et al.
Efficacy, Safety Profiles and Outcomes of Dual Anti Her2 Blockade in Combination with Neoadjuvant Chemotherapy in Locally Advanced (Stage II-III) Her2 Expressing Breast Cancer Patients, Middle East Experience. Pan Arab J Oncol [Internet]. 2018;2(November
2018
). Available from: www.amaac.org
5.
Nishino
M
,
Jagannathan
JP
,
Ramaiya
NH
,
Van den Abbeele
AD
.
Revised RECIST guideline version 1.1: what oncologists want to know and what radiologists need to know
.
[Internet]
.
AJR Am J Roentgenol
.
2010
Aug
;
195
(
2
):
281
9
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/20651182
[PubMed]
0361-803X
6.
Carlson
RW
,
Moench
SJ
,
Hammond
ME
,
Perez
EA
,
Burstein
HJ
,
Allred
DC
, et al.;
NCCN HER2 Testing in Breast Cancer Task Force
.
HER2 testing in breast cancer: NCCN Task Force report and recommendations
.
[Internet]
.
J Natl Compr Canc Netw
.
2006
Jul
;
4
Suppl 3
:
S1
22
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/16813731
[PubMed]
1540-1405
7.
Slamon
DJ
,
Leyland-Jones
B
,
Shak
S
,
Fuchs
H
,
Paton
V
,
Bajamonde
A
, et al.
Use of chemotherapy plus a monoclonal antibody against HER2 for metastatic breast cancer that overexpresses HER2
.
[Internet]
.
N Engl J Med
.
2001
Mar
;
344
(
11
):
783
92
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/11248153
[PubMed]
0028-4793
8.
Marty
M
,
Cognetti
F
,
Maraninchi
D
,
Snyder
R
,
Mauriac
L
,
Tubiana-Hulin
M
, et al.
Randomized phase II trial of the efficacy and safety of trastuzumab combined with docetaxel in patients with human epidermal growth factor receptor 2-positive metastatic breast cancer administered as first-line treatment: the M77001 study group
.
[Internet]
.
J Clin Oncol
.
2005
Jul
;
23
(
19
):
4265
74
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/15911866
[PubMed]
0732-183X
9.
Robert
NJ
,
Goertz
HP
,
Chopra
P
,
Jiao
X
,
Yoo
B
,
Patt
D
, et al.
HER2-Positive Metastatic Breast Cancer Patients Receiving Pertuzumab in a Community Oncology Practice Setting: Treatment Patterns and Outcomes
.
[Internet]
.
Drugs Real World Outcomes
.
2017
Mar
;
4
(
1
):
1
7
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/28063028
[PubMed]
2199-1154
10.
De Placido
S
,
Giuliano
M
,
Schettini
F
,
Von Arx
C
,
Buono
G
,
Riccardi
F
, et al.
Human epidermal growth factor receptor 2 dual blockade with trastuzumab and pertuzumab in real life: italian clinical practice versus the CLEOPATRA trial results
.
[Internet]
.
Breast
.
2018
Apr
;
38
:
86
91
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/29287189
[PubMed]
0960-9776
11.
Assi
HA
,
Khoury
KE
,
Dbouk
H
,
Khalil
LE
,
Mouhieddine
TH
,
El Saghir
NS
.
Epidemiology and prognosis of breast cancer in young women
.
[Internet]
.
J Thorac Dis
.
2013
Jun
;
5
Suppl 1
:
S2
8
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/23819024
[PubMed]
2072-1439
12.
Han
W
,
Kim
SW
,
Park
IA
,
Kang
D
,
Kim
SW
,
Youn
YK
, et al.
Young age: an independent risk factor for disease-free survival in women with operable breast cancer
.
[Internet]
.
BMC Cancer
.
2004
Nov
;
4
(
1
):
82
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/15546499
[PubMed]
1471-2407
13.
Bachelot
T
,
Ciruelos
E
,
Schneeweiss
A
,
Puglisi
F
,
Peretz-Yablonski
T
,
Bondarenko
I
, et al.
Preliminary safety and efficacy of first-line pertuzumab combined with trastuzumab and taxane therapy for HER2-positive locally recurrent or metastatic breast cancer (PERUSE). Ann Oncol Off J Eur Soc Med Oncol [Internet].
2019
May 1;30(5):766–73. Available from: http://www.ncbi.nlm.nih.gov/pubmed/30796821
14.
Al-Nozha
MM
,
Arafah
MR
,
Al-Mazrou
YY
,
Al-Maatouq
MA
,
Khan
NB
,
Khalil
MZ
, et al.
From the Department of Medicine (Coronary artery disease in Saudi Arabia.
2004
;966(April):1165–71. Available from: www.smj.org.sa
15.
Di
D
. WHO | Noncommunicable diseases country profiles 2011.
2011
;209. Available from: http://www.who.int/nmh/publications/ncd_profiles2011/en/index.html#.UbNQMyMkAnQ.mendeley
16.
Savci-Heijink
CD
,
Halfwerk
H
,
Hooijer
GK
,
Horlings
HM
,
Wesseling
J
,
van de Vijver
MJ
.
Retrospective analysis of metastatic behaviour of breast cancer subtypes
.
[Internet]
.
Breast Cancer Res Treat
.
2015
Apr
;
150
(
3
):
547
57
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/25820592
[PubMed]
0167-6806
17.
Onitilo
AA
,
Engel
JM
,
Greenlee
RT
,
Mukesh
BN
.
Breast cancer subtypes based on ER/PR and Her2 expression: comparison of clinicopathologic features and survival
.
[Internet]
.
Clin Med Res
.
2009
Jun
;
7
(
1-2
):
4
13
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/19574486
[PubMed]
1539-4182
18.
Murthy
RK
,
Varma
A
,
Mishra
P
,
Hess
KR
,
Young
E
,
Murray
JL
, et al.
Effect of adjuvant/neoadjuvant trastuzumab on clinical outcomes in patients with HER2-positive metastatic breast cancer
.
[Internet]
.
Cancer
.
2014
Jul
;
120
(
13
):
1932
8
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/24677057
[PubMed]
0008-543X
19.
Baselga
J
,
Swain
SM
.
Novel anticancer targets: revisiting ERBB2 and discovering ERBB3
.
[Internet]
.
Nat Rev Cancer
.
2009
Jul
;
9
(
7
):
463
75
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/19536107
[PubMed]
1474-175X
20.
Cortés
J
,
Fumoleau
P
,
Bianchi
GV
,
Petrella
TM
,
Gelmon
K
,
Pivot
X
, et al.
Pertuzumab monotherapy after trastuzumab-based treatment and subsequent reintroduction of trastuzumab: activity and tolerability in patients with advanced human epidermal growth factor receptor 2-positive breast cancer
.
[Internet]
.
J Clin Oncol
.
2012
May
;
30
(
14
):
1594
600
. Available from: http://www.ncbi.nlm.nih.gov/pubmed/22393084
[PubMed]
0732-183X
21.
Swain
SM
,
Miles
D
,
Kim
SB
. Im Y-H, Im S-A, Semiglazov V, et al. End-of-study analysis from the phase III, randomized, double-blind, placebo (Pla)-controlled CLEOPATRA study of first-line (1L) pertuzumab (P), trastuzumab (H), and docetaxel (D) in patients (pts) with HER2-positive metastatic breast cancer (MBC). J Clin Oncol [Internet].
2019
May 20;37(15_suppl):1020–1020. Available from: https://ascopubs.org/doi/10.1200/JCO.2019.37.15_suppl.1020
Copyright / Drug Dosage / Disclaimer
Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.
You do not currently have access to this content.