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2015 ; 21
(8
): 1869-76
Nephropedia Template TP
gab.com Text
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English Wikipedia
Higher Risk of Infections with PI3K-AKT-mTOR Pathway Inhibitors in Patients with
Advanced Solid Tumors on Phase I Clinical Trials
#MMPMID25649020
Rafii S
; Roda D
; Geuna E
; Jimenez B
; Rihawi K
; Capelan M
; Yap TA
; Molife LR
; Kaye SB
; de Bono JS
; Banerji U
Clin Cancer Res
2015[Apr]; 21
(8
): 1869-76
PMID25649020
show ga
PURPOSE: Novel antitumor therapies against the PI3K-AKT-mTOR pathway are
increasingly used to treat cancer, either as single agents or in combination with
chemotherapy or other targeted therapies. Although these agents are not known to
be myelosuppressive, an increased risk of infection has been reported with
rapamycin analogues. However, the risk of infection with new inhibitors of this
pathway such as PI3K, AKT, mTORC 1/2, or multikinase inhibitors is unknown.
EXPERIMENTAL DESIGN: In this retrospective case-control study, we determined the
incidence of infection in a group of 432 patients who were treated on 15 phase I
clinical trials involving PI3K-AKT-mTOR pathway inhibitors (cases) versus a group
of 100 patients on 10 phase I clinical trials of single agent non-PI3K-AKT-mTOR
pathway inhibitors (controls) which did not involve conventional cytotoxic
agents. We also collected data from 42 patients who were treated with phase I
trials of combinations of PI3K-AKT-mTOR inhibitors and MEK inhibitors and 24
patients with combinations of PI3K-AKT-mTOR inhibitors and cytotoxic
chemotherapies. RESULTS: The incidence of all grade infection was significantly
higher with all single-agent PI3K-AKT-mTOR inhibitors compared with the control
group [27% vs. 8%, respectively, OR, 4.26; 95% confidence intervals (CI),
1.9-9.1, P = 0.0001]. The incidence of grade 3 and 4 infection was also
significantly higher with PI3K-AKT-mTOR inhibitors compared with the control
group (10.3% vs. 3%, OR, 3.74; 95% CI, 1.1-12.4; P = 0.02). Also, the combination
of PI3K-AKT-mTOR inhibitors and chemotherapy was associated with a significantly
higher incidence of all grade (OR, 4.79; 95% CI, 2.0-11.2; P = 0.0001) and
high-grade (OR, 2.87; 95% CI, 1.0-7.6; P = 0.03) infection when compared with
single-agent PI3K-AKT-mTOR inhibitors. CONCLUSIONS: Inhibitors of the
PI3K-AKT-mTOR pathway can be associated with a higher risk of infection.
Combinations of PI3K-AKT-mTOR inhibitors and cytotoxic chemotherapy significantly
increase the risk of infection. This should be taken into consideration during
the design and conduct of trials involving PI3K-AKT-mTOR pathway inhibitors,
particularly when combined with chemotherapy or myelosuppressive agents.
|Adolescent
[MESH]
|Adult
[MESH]
|Aged
[MESH]
|Aged, 80 and over
[MESH]
|Antineoplastic Agents/adverse effects/*therapeutic use
[MESH]
|Antineoplastic Combined Chemotherapy Protocols/adverse effects/therapeutic use
[MESH]