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Proffered Paper 2 – Non-metastatic NSCLC and other thoracic malignancies (mesothelioma and thymic carcinoma)

803 - Durable anti-tumor activity of the multi-targeted inhibitor lenvatinib in patients with advanced or metastatic thymic carcinoma; Preliminary results from a multicenter phase II (REMORA) trial.

Date

30 Sep 2019

Session

Proffered Paper 2 – Non-metastatic NSCLC and other thoracic malignancies (mesothelioma and thymic carcinoma)

Presenters

Shoichi Itoh

Citation

Annals of Oncology (2019) 30 (suppl_5): v747-v755. 10.1093/annonc/mdz266

Authors

S. Itoh1, M. Satouchi1, J. Sato2, Y. Okuma3, S. Niho4, H. Mizugaki5, H. Murakami6, Y. Fujisaka7, T. Kozuki8, K. Nakamura9, Y. Nagasaka9, M. Kawasaki2, T. Yamada9, A. Kuchiba9, N. Yamamoto10

Author affiliations

  • 1 Department Of Thoracic Oncology, Hyogo Cancer Center, 673-8558 - Hyogo/JP
  • 2 Department Of Developmental Therapeutics, National Cancer Center Hospital, 104-0045 - Tokyo/JP
  • 3 Department Of Thoracic Oncology And Respiratory Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, 113-0021 - Tokyo/JP
  • 4 Department Of Thoracic Oncology, National Cancer Center Hospital East, 277-8577 - Kashiwa/JP
  • 5 First Department Of Medicine, Hokkaido University School of Medicine, 060-8648 - Hokkaido/JP
  • 6 Division Of Thoracic Oncology, Shizuoka Cancer Center, 411-8777 - Shizuoka/JP
  • 7 Clinical Research Center, Osaka Medical College Hospital, 569-8686 - Takatsuki/JP
  • 8 Department Of Thoracic Oncology And Medicine, National Hospital Organization Shikoku Cancer Center, 791-0280 - Matsuyama/JP
  • 9 Clinical Research Support Office, National Cancer Center Hospital, 104-0045 - Tokyo/JP
  • 10 Developmental Therapeutics, National Cancer Center Hospital, 104-0045 - Tokyo/JP
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Resources

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Abstract 803

Background

Thymic carcinoma is a rare malignant disease. Standard treatments have not been established for patients with advanced or metastatic thymic carcinoma previously treated with platinum-based chemotherapy. Several trials reported the efficacy of multi-targeted inhibitors mainly targeting vascular endothelial growth factor receptor (VEGFR) for thymic carcinoma. Lenvatinib is a novel multi-targeted inhibitor of VEGFR, fibroblast growth factor receptor (FGFR), RET, c-Kit etc.; it has shown anti-tumor activity with manageable toxicity profiles in several cancer types. We investigated the efficacy and safety of lenvatinib in patients with advanced or metastatic thymic carcinoma (JMA-IIA00285).

Methods

An open-label, single-arm, multi-center phase II trial was conducted in patients with histologically confirmed thymic carcinoma. The eligibility criteria were disease progression after at least one prior platinum-based chemotherapy, ECOG-PS of 0 or 1, measurable lesions, and adequate organ functions. Patients received 24 mg of lenvatinib orally once daily until progression or unacceptable toxicities. The primary endpoint was objective response rate (ORR) by independent radiological review. As per the SWOG two-stage design, the sample size of 40 had 80% power with one-sided alpha error of 5%; threshold ORR, 10%; and expected ORR, 25%.

Results

Between May 2017, and Feb 2018, 42 patients were enrolled from 8 institutions in Japan. The median follow-up period was 15.5 months (IQR 13.1-17.5). The 42 assessable patients had ORR of 38.1% (90%CI, 25.6-52.0), indicating statistically significant improvement in ORR. Of them, 16 had partial response, and 24 achieved stable disease. The most treatment-related adverse events of any grade were hypertension, diarrhea, and hand-foot syndrome, proteinuria, hypothyroidism, and decreased platelet count.

Conclusions

The efficacy and safety of lenvatinib in patients with advanced or metastatic thymic carcinoma was confirmed. These encouraging results suggest that lenvatinib could become one of the standard treatment options in patients with advanced or metastatic thymic carcinoma.

Clinical trial identification

JMA-IIA00285.

Editorial acknowledgement

Legal entity responsible for the study

The authors.

Funding

Center for Clinical trials, Japan Medical Association and Eisai.

Disclosure

M. Satouchi: Honoraria (self), Research grant / Funding (institution): AstraZeneca; Honoraria (self), Research grant / Funding (institution): MSD; Honoraria (self), Research grant / Funding (institution): Chugai; Honoraria (self): Taiho; Honoraria (self), Research grant / Funding (institution): Pfizer; Honoraria (self), Research grant / Funding (institution): Boehringer Ingelheim; Honoraria (self), Research grant / Funding (institution): Bristol-Myers Squibb; Honoraria (self), Research grant / Funding (institution): Ono; Honoraria (self), Research grant / Funding (institution): Novartis; Honoraria (self), Research grant / Funding (institution): Eli Lilly; Research grant / Funding (institution): Abbvie; Research grant / Funding (institution): Ignyta. J. Sato: Speaker Bureau / Expert testimony: AstraZeneca K.K.. Y. Okuma: Speaker Bureau / Expert testimony, Research grant / Funding (self): Chugai Pharmaceutical; Research grant / Funding (self): Takeda Pharmaceutical Company Ltd; Speaker Bureau / Expert testimony: AstraZeneca K.K.; Speaker Bureau / Expert testimony: Nippon Boehringer Ingelheim Co.; Speaker Bureau / Expert testimony: Bristol‐Myers Squibb Japan; Speaker Bureau / Expert testimony: MSD K.K.; Speaker Bureau / Expert testimony: Ono Pharmaceutical.. S. Niho: Research grant / Funding (self): Merck Serono; Honoraria (self), Advisory / Consultancy, Research grant / Funding (self): Pfizer; Honoraria (self), Advisory / Consultancy, Research grant / Funding (self): AstraZeneca; Honoraria (self), Research grant / Funding (self): Eli Lilly; Honoraria (self): Chugai; Honoraria (self): Taiho; Honoraria (self): MSD; Honoraria (self): Bristol-Myers Squibb; Honoraria (self): Novartis; Honoraria (self): Boehringer Ingelheim; Honoraria (self): Shionogi. H. Mizugaki: Speaker Bureau / Expert testimony, Research grant / Funding (self): Boehringer Ingelheim; Speaker Bureau / Expert testimony: AstraZeneca; Speaker Bureau / Expert testimony: Chugai Pharmaceutical. H. Murakami: Honoraria (self): AstraZeneca; Honoraria (self): Chugai pharma; Honoraria (self): Lilly Japan; Honoraria (self): Ono Pharmaceutical; Honoraria (self): Bristol-Myers Squibb Japan; Honoraria (self): Merck Sharp & Dohme; Honoraria (self): Taiho Pharmaceutical; Honoraria (self): Pfizer; Honoraria (self): Novartis; Honoraria (self): Boehringer Ingelheim. T. Kozuki: Honoraria (self), Research grant / Funding (self): AstraZeneca; Honoraria (self), Research grant / Funding (self): Chugai Pharmaceutical ; Honoraria (self), Research grant / Funding (self): Eli-Lilly; Honoraria (self), Research grant / Funding (self): Taiho Pharmaceutical ; Honoraria (self): Ono Pharmaceutica; Honoraria (self): Bristol-Myers Squibb; Honoraria (self), Research grant / Funding (self): MSD; Honoraria (self): Beohringer-Ingelheim; Honoraria (self): Kyowa-Hakko Kirin; Honoraria (self): Pfizer; Research grant / Funding (self): Merck Biopharma. K. Nakamura: Speaker Bureau / Expert testimony: Eisai. A. Kuchiba: Speaker Bureau / Expert testimony: Chugai. N. Yamamoto: Research grant / Funding (self): Astellas; Speaker Bureau / Expert testimony, Research grant / Funding (self): Chugai; Advisory / Consultancy, Research grant / Funding (self): Eisai; Research grant / Funding (self): Taiho; Speaker Bureau / Expert testimony, Research grant / Funding (self): BMS; Speaker Bureau / Expert testimony, Research grant / Funding (self): Pfizer; Research grant / Funding (self): Novartis; Speaker Bureau / Expert testimony, Research grant / Funding (self): Eli Lilly; Research grant / Funding (self): AbbVie; Research grant / Funding (self): Daiichi-Sankyo; Research grant / Funding (self): Bayer; Advisory / Consultancy, Research grant / Funding (self): Boehringer Ingelheim; Research grant / Funding (self): Kyowa-Hakko Kirin; Advisory / Consultancy, Research grant / Funding (self): Takeda; Speaker Bureau / Expert testimony, Research grant / Funding (self): Ono; Research grant / Funding (self): Janssen Pharma; Research grant / Funding (self): MSD; Research grant / Funding (self): Merck; Advisory / Consultancy: Otsuka; Advisory / Consultancy: Cimic. All other authors have declared no conflicts of interest.

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