Phase Ib Study of the Safety of T-DXd and Immunotherapy Agents With and Without Chemotherapy in Advanced or Metastatic HER2+, Non-squamous NSCLC — DL03  

Locally Advanced or Metastatic Non-Small Cell Lung Cancer Clinical Trial

Official title: A Phase Ib Multicenter, Open-label Study to Evaluate the Safety and Tolerability of Trastuzumab Deruxtecan (T-DXd) and Immunotherapy Agents With and Without Chemotherapy Agents in First-line Treatment of Patients With Advanced or Metastatic Non-squamous Non-small Cell Lung Cancer (NSCLC) and Human Epidermal Growth Factor Receptor 2 (HER2) Overexpression (OE) (DESTINY-Lung03)

Status Recruiting

Clinical Trial Summary

DESTINY-Lung03 will investigate the safety and tolerability of trastuzumab deruxtecan in combination with Immunotherapy Agents with and without chemotherapy in patients with HER2 over-expressing non-small cell lung cancer. The efficacy will be also analyzed as a secondary endpoint.

Clinical Trial Description

Part 1 is a dose escalation study by design, allowing the assessment of safety, tolerability and recommended dose levels of the combination of T-DXd and durvalumab plus cisplatin, carboplatin or pemetrexed. No more patients will be enrolled in this part of the study. Part 2, expansions in the treatment naïve setting on any recommended dose level will not be initiated. The evaluation of T-DXd combination treatment with immunotherapy continues in Part 3, assessing T-DXd and MEDI5752 with or without carboplatin (Arms 3A and 3B, respectively), using a dose confirmation and expansion design. For Part 3, patients will be randomized 1:1 to Arms 3A and 3B, beginning with the cohorts receiving the MEDI5752 starting dose (SD). A total of 6 DLT-evaluable patients will be enrolled to the SD cohorts in each arm. If the combination of T-DXd with MEDI5752 at the starting dose is deemed safe, a dose escalation (E1) cohort will be opened for 6 DLT-evaluable patients. Once all open dose confirmation cohorts have 6 DLT-evaluable patients, the SRC will convene to select the MEDI5752 RP2D to be used in the dose-expansion (DE) cohorts of each arm (n=34). The target population of interest (for Part 3) are patients with advanced or metastatic non-small cell lung cancer measurable disease by RECIST criteria, HER2 overexpression, ECOG PS of 0 to 1, patients who are treatment naïve for recurrent, unresectable or metastatic disease. Patients with tumors that harbor a known genomic alteration or driver for which approved therapies are available are excluded. ;

Related Conditions & MeSH terms

• Carcinoma, Non-Small-Cell Lung
• Locally Advanced or Metastatic Non-Small Cell Lung Cancer
• Lung Neoplasms

• NCT number: NCT04686305
• Study type: Interventional
• Source: AstraZeneca
• Contact: AstraZeneca Clinical Study Information Center
• Phone: 1-877-240-9479
• Email: information.center@astrazeneca.com
• Status: Recruiting
• Phase: Phase 1
• Start date: March 9, 2021
• Completion date: December 23, 2025