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A Study to Investigate the Efficacy and Safety of Trastuzumab Deruxtecan as the First Treatment Option for Unresectable, Locally Advanced/Metastatic Non-Small Cell Lung Cancer With HER2 Mutations

Phase 3
Recruiting
Conditions
Locally Advanced or Metastatic Non-Small Cell Lung Cancer
Interventions
Registration Number
NCT05048797
Lead Sponsor
AstraZeneca
Brief Summary

DESTINY-Lung04 will investigate the efficacy and safety of Trastuzumab Deruxtecan (T-DXd) versus Standard of Care (SoC) as first-line treatment of Non-Small Cell Lung Cancer (NSCLC) with HER2 Exon 19 or 20 mutations

Detailed Description

Eligible participants will be those diagnosed with unresectable, locally advanced or metastatic histologically documented non-squamous NSCLC with HER2 exons 19 or 20 mutations and who are treatment-naïve for palliative intent systemic therapy for locally advanced or metastatic disease.

The study aims to evaluate the efficacy, safety and tolerability of trastuzumab deruxtecan as first-line treatment of Non-Small Cell Lung Cancer (NSCLC) as compared with Standard of Care treatment (Investigator's choice of cisplatin or carboplatin + pembrolizumab + pemetrexed). This study aims to see if trastuzumab deruxtecan allows patients to live longer without the cancer getting worse or simply to live longer, compared to patients receiving standard of care treatment. This study is also looking to see how the treatment and the cancer affects patients' quality of life.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
450
Inclusion Criteria
  • Participants at least 18 years of age
  • Locally advanced and unresectable NSCLC, not amenable to curative therapy, or metastatic disease
  • Histologically documented non-squamous NSCLC with HER2 mutation in exons 19 or 20 by tissue NGS or ctDNA
  • Treatment-naïve for palliative intent systemic therapy for locally advanced or metastatic disease
  • Left ventricular ejection fraction (LVEF) ≥ 50%
  • Measurable disease assessed by Investigator based on RECIST 1.1
  • Protocol-defined adequate organ function including cardiac, renal, hepatic function
  • ECOG 0-1
  • Having tumour tissue available for central testing
Exclusion Criteria
  • Tumors with targetable alterations to EGFR (or other targetable mutations including but not limited to ALK, if routinely tested as a targetable alteration with approved available therapy)
  • Any untreated brain metastases, including asymptomatic or clinically inactive brain metastases
  • Active autoimmune or inflammatory disorders
  • Medical history of myocardial infarction within 6 months prior to randomization
  • History of non-infectious pneumonitis/ILD, current or suspected ILD
  • Lung-specific intercurrent clinical significant severe illness
  • Contraindication to platinum-based doublet chemotherapy or pembrolizumab

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Arm 2CarboplatinStandard of Care Treatment (platinum, pemetrexed and pembrolizumab)
Arm 1Trastuzumab DeruxtecanTrastuzumab Deruxtecan (T-DXd)
Arm 2CisplatinStandard of Care Treatment (platinum, pemetrexed and pembrolizumab)
Arm 2PemetrexedStandard of Care Treatment (platinum, pemetrexed and pembrolizumab)
Arm 2PembrolizumabStandard of Care Treatment (platinum, pemetrexed and pembrolizumab)
Primary Outcome Measures
NameTimeMethod
Progression Free Survival (PFS) by Blinded Independent Central Review (BICR)Until progression or death, assessed up to approximately 12 months

Defined as time from randomization until progression per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR), or death due to any cause.

Secondary Outcome Measures
NameTimeMethod
Overall Survival (OS)Until death, assessed up to approximately 28 months.

Defined as time from randomization until the date of death due to any cause.

Progression Free Survival (PFS) by investigator assessmentUntil progression, assessed up to approximately 12 months

Defined as time from randomization until progression per RECIST 1.1 as assessed by the investigator, or death due to any cause.

Objective Response Rate (ORR)Until progression, assessed up to approximately 12 months

Defined as the proportion of participants who have a complete response (CR) or partial response (PR) as assessed by Blinded Independent Central Review (BICR) and investigator according to RECIST 1.1

Duration of Response (DoR)Until progression, assessed up to approximately 12 months

Defined as the time from the date of first documented response until date of documented progression as assessed by Blinded Independent Central Review (BICR) and investigator assessment according to RECIST 1.1.

Safety and tolerability of T-DXd versus Standard of Care treatmentUntil progression or death, assessed up to approximately 28 months

Assessed by the occurrence of AEs, SAEs, and changes from baseline in laboratory parameters, vital signs, ECG, and ECHO/MUGA scan results.

Patient-reported tolerability of T-DXd described using overall side-effect botherUntil progression, assessed up to approximately 13 months

Overall side-effect bother: Descriptive summary of the proportion of participants reporting overall side-effect bother on the Patient's Global Impression of Treatment Tolerability (PGI-TT) while on treatment.

Landmark analysis of PFS (PFS12)Assessed up to approximately 12 months

Defined as proportion of participants alive and progression-free at 12 months, as assessed by Blinded Independent Central Review (BICR) and investigator.

Landmark analysis of OS (OS24)Assessed up to approximately 24 months

Defined as proportion of participants alive at 24 months

Immunogenicity of T-DXdUntil progression, assessed up to approximately 13 months

Presence of anti-drug antibodies (ADAs) for T-DXd.

Time to second progression or death (PFS2)Assessed up to approximately 20 months

Defined as the time from randomization until second progression on next-line of treatment as assessed by investigator at the local site using assessments conducted per local standard clinical practice, or death due to any cause.

Patient-reported tolerability of T-DXd described using symptomatic AEsUntil progression, assessed up to approximately 13 months

Symptomatic AEs: Descriptive summary of the proportion of participants reporting symptomatic AEs while on treatment, as assessed by the Patient-reported outcomes version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) and items from the European Organisation for Research and Treatment of Cancer (EORTC) Item Library.

Patient-reported tolerability of T-DXd described using physical functionUntil progression, assessed up to approximately 13 months

Physical Function: The proportion of participants with maintained or improved physical function while on treatment, based on the European Organisation for Research and Treatment of Cancer 30-item core quality of life questionnaire (EORTC-QLQ-C30) physical functioning scale.

Central Nervous System (CNS) - Progression Free Survival (PFS)Until CNS progression or death, assessed up to approximately 12 months

Defined as time from randomization until Central Nervous System (CNS) progression per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR) or death due to any cause in the absence of CNS progression.

Pharmacokinetics (PK) of T-DXd, total anti-HER2 antibody and DXd in serumUp to cycle 4, approximately 12 weeks

Serum concentration of T-DXd, total anti-HER2 antibody and DXd.

Patient-reported pulmonary symptoms associated with Non-Small Cell Lung CancerUntil progression, assessed up to approximately 13 months

Time to sustained deterioration in pulmonary symptoms (cough, dyspnea, chest pain) while on treatment using the Non-Small Cell Lung Cancer-Symptom Assessment Questionnaire (NSCLC-SAQ).

Trial Locations

Locations (1)

Research Site

🇹🇷

Çankaya, Turkey

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