Cited by 41HER2/EGFR in Cancer ResearchLung Cancer Treatments and MutationsGastric Cancer Management and Outcomes

A phase I study of AST1306, a novel irreversible EGFR and HER2 kinase inhibitor, in patients with advanced solid tumors

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Zhang, Jian, Cao, Junning, Li, Jin, Zhang, Yifan, Chen, Zhiyu, Peng, Wei, Sun, Si, Zhao, Naiqing +4 more·2014·Journal of Hematology & Oncology

Abstract

BACKGROUND: AST1306 is an orally active irreversible small molecule inhibitor of EGFR (erbB1), HER2 (erbB2) and HER4 (erbB4) signaling. This is a phase I, open-label, dose-escalation study to evaluate the safety and tolerability, pharmacokinetics (PK), and preliminary anti-tumor effects of oral AST1306. In addition the effects of food on PK was tested. METHODS: A modified Fibonacci 3 plus 3 dose-escalation design was employed to determine the dose-limiting toxicity (DLT) and recommended phase II dose (RP2D) in patients with advanced solid tumors. The following dose levels were investigated: once daily (QD) at two dose levels (400-and 800 mg), twice daily (BID) in five dose levels (600-, 800-, 1000-, 1200- and 1500 mg), and three times daily (TID) in three dose levels (800-, 1000- and 1200 mg). In the PK and extension study, at least eight patients per dose cohort in three dose levels (maximum tolerated dose [MTD], one or two doses level lower than the MTD) were enrolled to evaluate the PK profiles. RESULTS: Seventy-one patients were enrolled, with breast (n = 22) and lung cancers (n = 14) being the most common primary cancers. The most frequent drug-related adverse events were grade 1 to 3 diarrhea and rash, grade 1 to 2 fatigue. During dose escalation, the key DLT was grade 3 diarrhea observed in 5 patients at 1000 mg BID (n = 1), 1500 mg BID (n = 1), 800 mg TID (n = 1) and 1200 mg TID (n = 2). AST1306 was rapidly absorbed and had moderate to high clearance. PK concentration parameters increased with dose over the range evaluated, with no evidence of accumulation over time. Under fed conditions, the mean T(max) was prolonged, C(max) was increased, and AUC(0-∞) was raised. Of the 55 evaluable patients, 7 patients experienced partial responses, including 5 with breast cancer, 1 with lung cancer, and 1 with gastric cancer. The best response with stable disease for ≥ 6 months was achieved in 7 patients. CONCLUSIONS: Based on the DLT and PK profile, the RP2D was defined as 1000 mg TID with evidence of preliminary anti-tumor activity. Further studies are recommended.

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Authors
Zhang, J., Cao, J., Li, J., Zhang, Y., Chen, Z., Peng, W., Sun, S., Zhao, N., Wang, J., Zhong, D., Zhang, X., & Zhang, J.
Affiliations
  • Shanghai Medical College of Fudan University (CN)
  • Chinese Academy of Sciences (CN)
  • Fudan University (CN)
Corresponding author
  • Cao, Junning
  • Li, Jin
Venue
Journal of Hematology & Oncology
Published
2014-03-11
Volume
7
Issue
1
Pages
22-22
ISSN
1756-8722 (ISSN-L)
OpenAlex
W2115682164
Cited by
40
References
32
Citations by year
2026: 1 · 2025: 2 · 2024: 5 · 2023: 3 · 2022: 3 · 2021: 3 · 2019: 1 · 2018: 2 · 2017: 4 · 2016: 6 · 2015: 5 · 2014: 5
FWCI
3.21
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Hematology & Oncology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Oncology › HER2/EGFR in Cancer Research
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Gastric Cancer Management and Outcomes
Keywords
irreversible kinase inhibitors, EGFR, HER2, ErbB4, advanced solid tumors, dose-limiting toxicity, diarrhea, pharmacokinetics, food effect on absorption, oral administration, breast cancer, lung cancer, gastric cancer, anticancer activity, dose escalation, safety and tolerability, recommended phase 2 dose, maximum tolerated dose, partial response, stable disease
MeSH terms
Acrylamides, Adolescent, Adult, Aged, Dose-Response Relationship, Drug, Female, Humans, Male, Middle Aged, Neoplasms, Quinazolines, Treatment Outcome, Erb-b2 Receptor Tyrosine Kinases, Protein Kinase Inhibitors, Young Adult, ErbB Receptors

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