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Welcome

Attend this session at the
2019 ASCO Annual Meeting!


Session: Lung Cancer—Non-Small Cell Metastatic

Type: Poster Session

Time: Sunday June 2, 8:00 AM to 11:00 AM

Location: Hall A

First-in-human phase 1 study of DS-1062a in patients with advanced solid tumors.

Sub-category:
Metastatic Non-Small Cell Lung Cancer

Category:
Lung Cancer—Non-Small Cell Metastatic

Meeting:
2019 ASCO Annual Meeting

Abstract No:
9051

Poster Board Number:
Poster Session (Board #374)

Citation:
J Clin Oncol 37, 2019 (suppl; abstr 9051)

Author(s): Jacob M. Sands, Toshio Shimizu, Edward B. Garon, Jonathan Greenberg, Ferdinand M. Guevara, Rebecca Suk Heist, Fumiaki Kobayashi, Yutaka Noguchi, Daisuke Okajima, Naoyuki Tajima, Alexander I. Spira, Noboru Yamamoto, Aaron Elliott Lisberg; Dana-Farber Cancer Institute, Boston, MA; National Cancer Center Hospital (NCCH), Tokyo, Japan; David Geffen School of Medicine, University of California/TRIO-US Network, Los Angeles, CA; Daiichi Sankyo, Basking Ridge, NJ; Massachusetts General Hospital Cancer Center, Boston, MA; Daiichi Sankyo, Co., Ltd., Tokyo, Japan; Virginia Cancer Specialists, Fairfax, VA; National Cancer Center Hospital, Tokyo, Japan; University of California, Los Angeles, Los Angeles, CA

Abstract Disclosures

Abstract:

Background: DS-1062a is a trophoblast cell-surface antigen 2 (TROP2)-targeting antibody drug conjugate. TROP2 is highly expressed in epithelial cancers, including non-small cell lung cancer (NSCLC). Overexpression of TROP2 may be associated with poor survival in some solid tumors. Preclinical studies showed promising antitumor activity of DS-1062a in mouse models with TROP2-positive tumors. Preliminary results are reported in the dose escalation part of this phase 1 study. Methods: This is an ongoing phase 1 study of DS-1062a in patients (pts) with advanced solid tumors in the US and Japan (NCT03401385). Adult (age ≥20 years in Japan or ≥18 years in US) pts with measurable disease per RECIST v1.1 and sufficient tumor tissue sample for TROP2 measurement were eligible. Pts were excluded if they had multiple primary malignancies or untreated brain metastases. Endpoints included safety, pharmacokinetics, and efficacy. Results: As of November 16, 2018, 22 pts with advanced NSCLC were treated with DS-1062a at doses of 0.27-mg/kg (n = 4), 0.5-mg/kg (n = 5), 1.0-mg/kg (n = 7), and 2.0-mg/kg (n = 6). Overall, mean (standard deviation) treatment duration and cumulative dose were 7.8 (4.1) weeks and 181.8 (141.4) mg, respectively, with a median of 2 (range 1–6) cycles initiated. The majority (n = 18; 81.8%) of pts had ≥1 treatment-emergent adverse event (TEAE). The most common TEAE, fatigue (n = 9), was the only grade ≥3 treatment-related TEAE (n = 1; 2.0-mg/kg). Serious TEAEs, reported in 5 pts in the 0.27-mg/kg (n = 2), 0.5-mg/kg (n = 2), and 2.0-mg/kg (n = 1) cohorts, were not treatment-related. TEAEs leading to discontinuation occurred in 1 pt in the 0.27-mg/kg cohort (pleural effusion; not treatment-related). One pt died due to progressive disease. Peak concentration (Cmax) and area under the curve from time 0 to last measurable concentration (AUClast) increases were generally dose proportional. Of 18 tumor evaluable pts, 1 had a partial response (PR; 1.0-mg/kg), and 8 had stable disease (SD). Conclusions: DS-1062a was well tolerated at doses up to 2.0-mg/kg. An observable PR and multiple pts with SD warrant further evaluation of DS-1062a. The maximum tolerated dose has not been reached, and this study is ongoing. Clinical trial information: NCT03401385

 
Other Abstracts in this Sub-Category:

 

1. Association of STK11/LKB1 genomic alterations with lack of benefit from the addition of pembrolizumab to platinum doublet chemotherapy in non-squamous non-small cell lung cancer.

Meeting: 2019 ASCO Annual Meeting Abstract No: 102 First Author: Ferdinandos Skoulidis
Category: Lung Cancer—Non-Small Cell Metastatic - Metastatic Non-Small Cell Lung Cancer

 

2. Real-world outcomes of patients with advanced non-small cell lung cancer (aNSCLC) and autoimmune disease (AD) receiving immune checkpoint inhibitors (ICIs).

Meeting: 2019 ASCO Annual Meeting Abstract No: 110 First Author: Sean Khozin
Category: Lung Cancer—Non-Small Cell Metastatic - Metastatic Non-Small Cell Lung Cancer

 

3. RELAY: A multinational, double-blind, randomized Phase 3 study of erlotinib (ERL) in combination with ramucirumab (RAM) or placebo (PL) in previously untreated patients with epidermal growth factor receptor mutation-positive (EGFRm) metastatic non-small cell lung cancer (NSCLC).

Meeting: 2019 ASCO Annual Meeting Abstract No: 9000 First Author: Kazuhiko Nakagawa
Category: Lung Cancer—Non-Small Cell Metastatic - Metastatic Non-Small Cell Lung Cancer

 

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