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Clinical Trials/NCT05765734
NCT05765734TerminatedPhase 1

A Phase 1/2 Study of TAS3351 in Patients With Advanced Non-Small Cell Lung Cancer and EGFR Mutations

Taiho Oncology, Inc.17 sites in 9 countries18 target enrollmentStarted: May 25, 2023Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Phase 1
Status
Terminated
Enrollment
18
Locations
17
Primary Endpoint
Dose Expansion: To explore the efficacy of TAS3351

Study Overview

Brief Summary

This is a first-in-human, open label, Phase 1/2 study to investigate the safety and efficacy of TAS3351 in patients with advanced or metastatic non-small cell lung cancer (NSCLC) harboring an acquired C797S epidermal growth factor receptor (EGFR) mutation.

Detailed Description

This study will be conducted in 3 parts (i.e. dose escalation, dose expansion, and a phase 2 portion). The dose escalation part will investigate the safety and determine the recommended phase 2 dose and the recommended dosing regimen of TAS3351 administered orally. The dose expansion part will explore the efficacy of TAS3351 in NSCLC patients with C797S EGFR mutations. The phase 2 part will assess the efficacy of TAS3351 in NSCLC patients with C797S EGFR mutations.

Study Design

Study Type
Interventional
Allocation
Non Randomized
Intervention Model
Single Group
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Ages
18 Years to — (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Locally advanced, non-resectable or metastatic NSCLC
  • Have adequate organ function
  • Have a performance status of 0 or 1 on the Eastern Cooperative Oncology Group (ECOG) scale
  • Has tumor tissue available to allow for analysis of EGFRmt status
  • Dose Escalation:
  • Has any EGFRmt status
  • Dose Escalation back-fill part, Dose Expansion and Phase II:
  • Has any sensitizing EGFRmt and a confirmed C797S EGFRmt
  • Has measurable disease per RECIST v1.1

Exclusion Criteria

  • Participating in medical research not compatible with this study
  • Symptomatic and unstable CNS metastases
  • Have not recovered from prior cancer treatment
  • Have a significant cardiac condition
  • Are a pregnant or breastfeeding female
  • A serious illness or medical condition
  • Unable to swallow or digest pills

Arms & Interventions

TAS3351 Part A (Dose Escalation)

Experimental

Dose escalation will assess the safety and determine the recommended phase 2 dose and regimen of TAS3351 administered orally.

Intervention: TAS3351 oral administration (Drug)

TAS3351 Part B (Dose Expansion)

Experimental

TAS3351 in NSCLC patients with C797S EGFRmt. TAS3351 will be administered at the recommended phase 2 dose determined in Part A.

Intervention: TAS3351 oral administration (Drug)

TAS3351 Part C (Phase 2)

Experimental

To assess efficacy of TAS3351 in NSCLC patients with C797S EGFRmt. TAS3351 will be administered at the recommended phase 2 dose.

Intervention: TAS3351 oral administration (Drug)

Outcomes

Primary Outcomes

Dose Expansion: To explore the efficacy of TAS3351

Time Frame: estimated 9 months

Objective Response Rate (ORR)

Dose Escalation: To investigate the safety and determine the recommended Phase 2 dose and dosing schedule of TAS3351

Time Frame: baseline through cycle 1(each cycle is 21 days)

Incidence of dose limiting toxicities (DLTs)

Phase 2: To assess the efficacy of TAS3351

Time Frame: estimated 3 years

Objective Response Rate (ORR)

Secondary Outcomes

  • Phase 2:To evaluate patient reported outcomes (PROs)(estimated 3 years)
  • Dose Escalation: To characterize the pharmacokinetics (PK) of TAS3351(ECycle 1 Day 1 through cycle 1 Day 15 (21-Day cycle))
  • Phase 2: To further assess the efficacy of TAS3351(estimated 3 years)
  • Dose Escalation:To evaluate the antitumor activity of TAS3351(estimated 20 months)
  • Dose Expansion: To further explore the anti-tumor efficacy of TAS3351(estimated 9 months)
  • Dose Escalation: To evaluate the antitumor activity of TAS3351(estimated 20 months)
  • Dose Expansion: To confirm the safety and tolerability of TAS3351 at the recommended phase 2 dose and dosing schedule(estimated 9 months)
  • Phase 2: To evaluate the safety and tolerability of TAS3351(estimated 3 years)

Investigators

Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (17)

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