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Mosele F, Deluche E, Lusque A, Le Bescond L, Filleron T, Pradat Y, Ducoulombier A, Pistilli B, Bachelot T, Viret F, Levy C, Signolle N, Alfaro A, Tran DTN, Garberis IJ, Talbot H, Christodoulidis S, Vakalopoulou M, Droin N, Stourm A, Kobayashi M, Kakegawa T, Lacroix L, Saulnier P, Job B, Deloger M, Jimenez M, Mahier C, Baris V, Laplante P, Kannouche P, Marty V, Lacroix-Triki M, Diéras V, André F. Trastuzumab deruxtecan in metastatic breast cancer with variable HER2 expression: the phase 2 DAISY trial. Nat Med 2023; 29:2110-2120. [PMID: 37488289 PMCID: PMC10427426 DOI: 10.1038/s41591-023-02478-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 06/28/2023] [Indexed: 07/26/2023]
Abstract
The mechanisms of action of and resistance to trastuzumab deruxtecan (T-DXd), an anti-HER2-drug conjugate for breast cancer treatment, remain unclear. The phase 2 DAISY trial evaluated the efficacy of T-DXd in patients with HER2-overexpressing (n = 72, cohort 1), HER2-low (n = 74, cohort 2) and HER2 non-expressing (n = 40, cohort 3) metastatic breast cancer. In the full analysis set population (n = 177), the confirmed objective response rate (primary endpoint) was 70.6% (95% confidence interval (CI) 58.3-81) in cohort 1, 37.5% (95% CI 26.4-49.7) in cohort 2 and 29.7% (95% CI 15.9-47) in cohort 3. The primary endpoint was met in cohorts 1 and 2. Secondary endpoints included safety. No new safety signals were observed. During treatment, HER2-expressing tumors (n = 4) presented strong T-DXd staining. Conversely, HER2 immunohistochemistry 0 samples (n = 3) presented no or very few T-DXd staining (Pearson correlation coefficient r = 0.75, P = 0.053). Among patients with HER2 immunohistochemistry 0 metastatic breast cancer, 5 of 14 (35.7%, 95% CI 12.8-64.9) with ERBB2 expression below the median presented a confirmed objective response as compared to 3 of 10 (30%, 95% CI 6.7-65.2) with ERBB2 expression above the median. Although HER2 expression is a determinant of T-DXd efficacy, our study suggests that additional mechanisms may also be involved. (ClinicalTrials.gov identifier NCT04132960 .).
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Affiliation(s)
- Fernanda Mosele
- INSERM U981, Gustave Roussy, Villejuif, France
- Department of Medical Oncology, Gustave Roussy, Villejuif, France
| | - Elise Deluche
- Department of Medical Oncology, CHU Dupuytren, Limoges, France
| | - Amelie Lusque
- Department of Biostatistics, Institut Claudius-Regaud, IUCT Oncopole, Toulouse, France
| | - Loïc Le Bescond
- INSERM U981, Gustave Roussy, Villejuif, France
- CVN Lab, CentraleSupélec,Université Paris-Saclay, Gif-Sur-Yvette, France
- OPIS, Inria, CentraleSupélec, Université Paris-Saclay, Gif-Sur-Yvette, France
| | - Thomas Filleron
- Department of Biostatistics, Institut Claudius-Regaud, IUCT Oncopole, Toulouse, France
| | - Yoann Pradat
- MICS Lab, CentraleSupélec, Université Paris-Saclay, Gif-Sur-Yvette, France
| | | | - Barbara Pistilli
- Department of Medical Oncology, Gustave Roussy, Villejuif, France
| | - Thomas Bachelot
- Department of Medical Oncology, Centre Léon Bérard, Lyon, France
| | - Frederic Viret
- Department of Medical Oncology, Centre Paoli Calmettes, Marseille, France
| | - Christelle Levy
- Department of Medical Oncology, Centre François Baclesse, Caen, France
| | - Nicolas Signolle
- AMMICa Platform, INSERM US23, CNRS UAR 3655, AMMICa, Villejuif, France
| | - Alexia Alfaro
- Imaging and Cytometry Platform, Gustave Roussy, UAR 23/3655, Université Paris-Saclay, Villejuif, France
| | | | | | - Hugues Talbot
- CVN Lab, CentraleSupélec,Université Paris-Saclay, Gif-Sur-Yvette, France
- OPIS, Inria, CentraleSupélec, Université Paris-Saclay, Gif-Sur-Yvette, France
| | | | - Maria Vakalopoulou
- OPIS, Inria, CentraleSupélec, Université Paris-Saclay, Gif-Sur-Yvette, France
- MICS Lab, CentraleSupélec, Université Paris-Saclay, Gif-Sur-Yvette, France
| | - Nathalie Droin
- AMMICa Platform, INSERM US23, CNRS UAR 3655, AMMICa, Villejuif, France
| | - Aurelie Stourm
- AMMICa Platform, INSERM US23, CNRS UAR 3655, AMMICa, Villejuif, France
| | - Maki Kobayashi
- Translational Research Department, Daiichi Sankyo RD Novare, Tokyo, Japan
| | - Tomoya Kakegawa
- Translational Research Department, Daiichi Sankyo RD Novare, Tokyo, Japan
| | - Ludovic Lacroix
- AMMICa Platform, INSERM US23, CNRS UAR 3655, AMMICa, Villejuif, France
- Department of Medical Biology and Pathology, Gustave Roussy, Villejuif, France
| | - Patrick Saulnier
- AMMICa Platform, INSERM US23, CNRS UAR 3655, AMMICa, Villejuif, France
- Department of Medical Biology and Pathology, Gustave Roussy, Villejuif, France
| | - Bastien Job
- AMMICa Platform, INSERM US23, CNRS UAR 3655, AMMICa, Villejuif, France
| | - Marc Deloger
- AMMICa Platform, INSERM US23, CNRS UAR 3655, AMMICa, Villejuif, France
| | | | | | - Vianney Baris
- UMR9019, CNRS, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Pierre Laplante
- UMR9019, CNRS, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Patricia Kannouche
- UMR9019, CNRS, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Virginie Marty
- AMMICa Platform, INSERM US23, CNRS UAR 3655, AMMICa, Villejuif, France
| | | | - Veronique Diéras
- Department of Medical Oncology, Centre Eugène Marquis, Rennes, France
| | - Fabrice André
- INSERM U981, Gustave Roussy, Villejuif, France.
- Department of Medical Oncology, Gustave Roussy, Villejuif, France.
- Faculty of Medicine, Université Paris-Saclay, Kremlin Bicêtre, France.
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Baris V, Gedikli E, Dincsoy AB, Erdem A. Empagliflozin significantly prevents QTc prolongation due to amitriptyline intoxication via intracellular calcium regulation. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Empagliflozin is a SGLT-2 inhibitor used in the treatment of Type 2 diabetes and has positive effects on cardiovascular outcomes. Amitriptyline can be used in many clinical indications but leads to cardiotoxicity by causing QT prolongation.
Aim
Our aim in the present study is to observe the effect of the concomitant use of amitriptyline and empagliflozin together, which have an effect on sodium and calcium balance in myocytes, on QTc by using ECG.
Materials and methods
Twenty-four male Wistar-Albino rats were randomized into four groups. The control group received only serum physiologic (1ml) via orogastric gavage (OG). The EMPA group received empagliflozin (10 mg/kg) via OG. The AMT group received amitriptyline (100 mg/kg) via OG. The AMT+EMPA group (n: 6) received amitriptyline and empagliflozin at same dose. Under anesthesia; QT and QTC intervals were measured at baseline, first, and second hours.
Results
The differences in QT and QTc values between the AMT group and control group were observed from the 1nd hour (Table 1, Figure 1). It was detected that the measurements of the control group were within normal limits. In the control group, QT was 77.33±9.02 ms at the basal, 73.50±2.26 ms at the 1st hour, 78.17±6.18 ms at the 2nd hour. QTc calculation was 165.42±18.34±10.5 ms at the basal, 166.63±17.92 msat the 1st hour, 184.65±12.86 ms at the 2nd hour. ECG findings of the EMPA group were within normal limits and similar to the control group (Table 1). The durations of QT interval and QTc calculations were found to be statistically longer in the AMT group than the control group at the 1st and 2nd hour (p≤0.001). Empagliflozin significantly ameliorated AMT-induced QT and QTc prolongation. The durations of QT interval were significantly lower at first (p<0,001) and 2nd hours (p<0.01) in the AMT+EMPA group compared to the AMT group. Moreover, QTc calculation was significantly lower in the AMT+EMP group than the AMT group at 1st and 2nd hour (P<0.01) (Table 1). Electrocardiographic comparisons of all groups for one second within the second hour can be seen in Figure 2.
Conclusion
In the present study, we have detected that empagliflozin significantly ameliorates amitriptyline induced QT prolongation. This effect is probably due to the opposite effects of these two agents in the intracellular calcium balance. It's known that; toxic dose of amitriptyline increases the amount of Sarcoplasmic Ca and the calcium permeability of Ryanodine channels, decreases SERCA-mediated Ca-reuptake by decreasing the calcium binding capacity of calsequestrin, and these leads QTc prolongation. It has been shown that empagliflozin increases Ca reuptake by causing a significant increase in SERCA activity, and decreases Ca sparks by causing inhibition of Ryanodine activity. With more clinical trials, the routine use of empagliflozin may be suggested to prevent QTc prolongation in the diabetic patients receiving amitriptyline.
Funding Acknowledgement
Type of funding sources: None. Table 1. QT, QTc durations and HR for groupsFigure 1. ECG traces – a: CON, b: EMPA, c: AMT, d: AMT+EMP
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Affiliation(s)
- V Baris
- Dr. Ersin Arslan Researchand Training Hospital, Gaziantep, Turkey
| | - E Gedikli
- Hacettepe University, Physiology, Ankara, Turkey
| | - A B Dincsoy
- Hacettepe University, Physiology, Ankara, Turkey
| | - A Erdem
- Hacettepe University, Physiology, Ankara, Turkey
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