A Study to Investigate the Efficacy and Safety of Dato-DXd With or Without Osimertinib Compared With Platinum Based Doublet Chemotherapy in Participants With EGFR-Mutated Locally Advanced or Metastatic Non-Small Cell Lung Cancer
Purpose
This study will assess the effect of Dato-DXd in combination with osimertinib or Dato-DXd monotherapy versus platinum-based doublet chemotherapy in terms of progression-free survival (PFS).
Condition
- Metastatic Non-small Cell Lung Cancer
Eligibility
- Eligible Ages
- Between 18 Years and 130 Years
- Eligible Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- Histologically or cytologically confirmed non-squamous NSCLC. - Must have evidence of documented pre-existing EGFRm information (EGFRm known to be associated with (epidermal growth factor receptor [EGFR] tyrosine kinase inhibitor [TKis] sensitivity [Ex19del, L858R, G719X, S768I, or L861Q], either alone or in combination with other EGFR mutations, which may include T790M). - Documented extra-cranial radiologic progression on prior osimertinib monotherapy (as most recent line of treatment) in the adjuvant, locally advanced, or metastatic setting. - Less than or equal to (<=2) prior lines of EGFR TKIs (osimertinib is the only permitted prior third generation EGFR TKI). - At least one lesion, not previously irradiated, that qualifies as a RECIST v1.1 TL at baseline and can be accurately measured at baseline. - World Health Organization (WHO)/Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. - Adequate bone marrow reserve and organ function within 7 days before randomization.
Exclusion Criteria
- Use of chemotherapy, vascular endothelial growth factor inhibitor, immunotherapy or any anti-cancer therapy in the metastatic setting. Platinum-based chemotherapy in non-metastatic setting within 12 months prior to randomization. - History of another primary malignancy except for malignancy treated with curative intent with no known active disease within 2 years before the first dose of study intervention. - Any evidence of severe or uncontrolled systemic diseases, including, but not limited to active bleeding diseases, active infection, active ILD/pneumonitis, cardiac disease. - Has significant third-space fluid retention (example [eg.], ascites or pleural effusion) as judged by the investigator and is not amenable for required repeated drainage. - History of non-infectious ILD/pneumonitis including radiation pneumonitis that required steroids or drug-induced ILD, has current ILD/pneumonitis, or has suspected ILD/pneumonitis that cannot be ruled out by imaging at screening. - Has severe pulmonary function compromise resulting from intercurrent pulmonary illnesses. - Unstable spinal cord compression and/or unstable brain metastases. - Participants with symptomatic brain metastases (including leptomeningeal involvement). - Clinically significant corneal disease. - Uncontrolled infection requiring systemic antibiotics, antivirals, or antifungals, suspected infections or inability to rule out infections. Use of systemic antibiotics within 14 days of randomization. - Has known human immunodeficiency virus (HIV) infection that is not well controlled.
Study Design
- Phase
- Phase 3
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel Assignment
- Primary Purpose
- Treatment
- Masking
- None (Open Label)
Arm Groups
| Arm | Description | Assigned Intervention |
|---|---|---|
|
Experimental Group 1: Dato-DXd + Osimertinib Combination Therapy |
Participants will receive Dato-DXd 6 milligrams per kilogram (mg/kg) as intravenous (IV) infusion every 3 weeks (Q3W) on Day 1 of every 21-day cycle, and osimertinib 80 milligrams (mg) once daily (QD) orally, until RECIST v1.1-defined radiological progression by investigator, unacceptable toxicity, or other discontinuation criterion is met. |
|
|
Experimental Group 2: Dato-DXd Monotherapy |
Participants will receive Dato-DXd 6 mg/kg as IV infusion Q3W on Day 1 of every 21-day cycle, until RECIST v1.1-defined radiological progression by investigator, unacceptable toxicity, or other discontinuation criterion is met. |
|
|
Experimental Group 3: Platinum-based Doublet Chemotherapy |
Participants will receive pemetrexed 500 milligrams per meter square (mg/m2) in combination with carboplatin (AUC5) or cisplatin 75 mg/m2 as IV infusion Q3W for 4 cycles followed by pemetrexed maintenance 500 mg/m2 as IV infusion Q3W, until RECIST v1.1-defined radiological progression by investigator, unacceptable toxicity, or another discontinuation criterion is met. |
|
Recruiting Locations
Fayetteville 4110486, Arkansas 4099753 72703
Fountain Valley 5350207, California 5332921 92708
La Jolla 5363943, California 5332921 92093
Colorado Springs 5417598, Colorado 5417618 80909
Fort Collins 5577147, Colorado 5417618 80528
Jacksonville 4160021, Florida 4155751 32256
Athens 4180386, Georgia 4197000 30607
Bethesda 4348599, Maryland 4361885 20817
Detroit 4990729, Michigan 5001836 48202
Kansas City 4393217, Missouri 4398678 64132
Omaha 5074472, Nebraska 5073708 68124
Morristown 5101427, New Jersey 5101760 07960
Northfield 4503316, New Jersey 5101760 08225
New York 5128581, New York 5128638 10065
The Bronx 5110266, New York 5128638 10461
Maumee 5162137, Ohio 5165418 43537
Pittsburgh 5206379, Pennsylvania 6254927 15232
Chattanooga 4612862, Tennessee 4662168 37404
Nashville 4644585, Tennessee 4662168 37203
Fairfax 4758023, Virginia 6254928 22031
More Details
- NCT ID
- NCT06417814
- Status
- Recruiting
- Sponsor
- AstraZeneca
Study Contact
AstraZeneca Clinical Study Information Center1-877-240-9479
information.center@astrazeneca.com
Detailed Description
This is a Phase III, open-label, 3-arm, multicenter study assessing the effects of Dato-DXd in combination with osimertinib or Dato-DXd monotherapy versus platinum-based doublet chemotherapy in participants with epidermal growth factor receptor gene mutation (EGFRm) locally advanced or metastatic non-small cell lung cancer (NSCLC) whose disease has progressed on prior osimertinib treatment. Participants will be randomized in a 1:1:1 ratio to one of the following intervention groups: 1. Dato-DXd + osimertinib combination therapy 2. Dato-DXd monotherapy 3. Platinum-based doublet chemotherapy Participants will receive study intervention until Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1) -defined radiological progression by the investigator, unacceptable toxicity, or other discontinuation criterion is met. After study intervention discontinuation, all participants will undergo an end of treatment (EoT) visit within 35 days of discontinuation and will be followed up for safety assessments 28 (+ 7) days after their last dose of study intervention.