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A Study of ZL-1310 Versus Investigator's Choice of Therapy in Participants With Relapsed Small Cell Lung Cancer (DLLEVATE)

A Randomized, Open-Label, Phase 3 Study of ZL-1310, a DLL3 Antibody-Drug Conjugate (ADC), Compared to Investigator's Choice Therapy in Participants With Relapsed Small Cell Lung Cancer

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07218146
Acronym
DLLEVATE
Enrollment
480
Registered
2025-10-20
Start date
2025-11-30
Completion date
2028-11-30
Last updated
2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Small-cell Lung Cancer

Brief summary

The purpose of this study is to evaluate the efficacy and safety of ZL-1310 compared to Investigator's Choice Therapy in participants with relapsed Small Cell Lung Cancer.

Interventions

ZL-1310 as a single-agent

Topotecan or Amrubicin

Sponsors

Zai Lab (Shanghai) Co., Ltd.
Lead SponsorINDUSTRY
Zai Lab (US) LLC
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age \>/= 18 years, or considered an adult by local regulations, at the time of consent * Signed informed consent * Histologically or cytologically confirmed SCLC. Received 1L platinum-based systemic therapy and had documented disease progression during or after the most recent systemic therapy. Or received 2L tarlatamab is allowed. * Measurable disease according to RECIST v1.1 as assessed by the investigator. * Participants with a history of treated and stable or untreated and asymptomatic CNS metastases based on criteria per protocol. * Adequate organ and marrow function * Eastern Cooperative Group (ECOG) performance status of 0 or 1 * Life expectancy of at least 3 months * Participants must be willing to undergo a tumor biopsy or provide archived tumor tissue sample at Screening * Participants must be willing and able to comply with protocol for the duration of the study

Exclusion criteria

* Received more than one line of systemic therapy for Extensive-Stage SCLC. * Received any prior ADC with topoisomerase 1 inhibitor payload * Participants with another known malignancy with exceptions defined in the protocol. * History or suspected ILD/pneumonitis based on criteria per protocol * Clinically severe pulmonary compromise resulting from intercurrent pulmonary illnesses. * Receipt of anti-cancer treatment known to treat cancers within 3 weeks before the first dose of study treatment. * Prior radiotherapy before study treatment based on criteria per protocol * Unresolved toxicity of Grade \>/= 2 from previous anti-cancer treatment, except for alopecia and skin pigmentation. * Known infection or active infection defined in the protocol. * Clinically significant active cardiovascular disease or history of arterial thromboembolic event within 6 months prior to the first dose of study treatment based on criteria per protocol.

Design outcomes

Primary

MeasureTime frame
Confirmed objective response rate (ORR) assessed by Blinded Independent Central Review of ZL-1310 compared to Investigator's Choice Therapy (ICT)up to 30 months
Overall survival of ZL-1310 compared to Investigator's Choice Therapy (ICT)up to 30 months

Secondary

MeasureTime frame
Duration of response (DoR) assessed by BICR and by the investigator per RECIST v1.1 of ZL-1310 compared to Investigator's Choice Therapy (ICT)up to 30 months
Progression-free survival (PFS) assessed by BICR and by the investigator per RECIST v1.1 of ZL-1310 compared to Investigator's Choice Therapy (ICT)up to 30 months
Confirmed ORR assessed by the investigator per RECIST v1.1 of ZL-1310 compared to Investigator's Choice Therapy (ICT)up to 30 months
Time to response (TTR) assessed by BICR and by the investigator per RECIST v1.1 of ZL-1310 compared to Investigator's Choice Therapy (ICT)up to 30 months
Confirmed CNS response assessed by BICR per Response Assessment in Neuro-Oncology for Brain Metastases (RANO-BM) of ZL-1310 compared to Investigator's Choice Therapy (ICT)up to 30 months
Occurrence of treatment-emergent adverse events (TEAEs) of ZL-1310 compared to Investigator's Choice Therapy (ICT)up to 30 months
Changes from baseline in quality of life related parameters of ZL-1310 compared to Investigator's Choice Therapy (ICT) using EQ-5D-5Lup to 30 months
Changes from baseline in quality of life related parameters of ZL-1310 compared to Investigator's Choice Therapy (ICT) using EORTC-QLQ-C30up to 30 months
Changes from baseline in quality of life related parameters of ZL-1310 compared to Investigator's Choice Therapy (ICT) using EORTC-QLQ-LC13up to 30 months

Countries

Austria, Belgium, China, Czechia, France, Germany, Greece, Italy, Japan, Netherlands, Poland, Spain, Turkey (Türkiye), United Kingdom, United States

Contacts

CONTACTZL-1310-003 Study Team
study-ZL-1310-003@zailaboratory.com650-360-1601

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 15, 2026