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ZL-1310

Phase 3

Small-cell Lung Cancer | Small molecule | Oncology |Zai Lab Limited|Last Updated: Jul 23, 2026

Success Probability
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Market & Valuation
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Trial Design
RandomizedACTIVE_CONTROLLED
Total Trials1
Total Enrollment480
FDA Designations
ORPHAN_DRUGFAST_TRACK
Clinical trial landscape

ZL-1310 · 3 trials · 3 indications

Phase 3 1Phase 1 2
NCT07218146A Study of ZL-1310 Versus Investigator's Choice of Therapy in Participants With Relapsed Small Cell Lung Cancer (DLLEVATE)Small-cell Lung Cancer
RECRUITING480 Analytics
PHASE3RECRUITING
A Study of ZL-1310 Versus Investigator's Choice of Therapy in Participants With Relapsed Small Cell Lung Cancer (DLLEVATE)
Small-cell Lung CancerUnlock trial analytics
Study Endpoints
Primary Endpoints
Confirmed objective response rate (ORR) assessed by Blinded Independent Central Review of ZL-1310 compared to Investigator's Choice Therapy (ICT)
up to 27 months
Overall survival of ZL-1310 compared to Investigator's Choice Therapy (ICT)
up to 27 months
Incidence of Treatment Emergent Adverse-Events in Phase 1b
up to 36 months

Number of subjects with treatment-emergent adverse events (TEAEs)

Incidence of Serious Adverse Events in Phase 1b
up to 36 months

Number of subjects with serious adverse events (SAEs)

Evaluate antitumor activity of ZL-1310 as a single agent in Phase 2
up to 36 months

Confirmed objective response rate (ORR) determined by blinded independent central review (BICR) in Phase 2

Incidence of Dose Limiting Toxicities of ZL-1310 as a single agent (Part 1A), in combination with Atezolizumab (Part 1B), and in combination with atezolizumab and carboplatin (Part 1C)
up to 24 months

Number of subjects with Dose Limiting Toxicities (DLTs)

Incidence of Treatment Emergent Adverse-Events of ZL-1310 as a single agent (Part 1A), in combination with atezolizumab (Part 1B), and in combination with atezolizumab and carboplatin (Part 1C)
up to 24 months

Number of subjects with treatment-emergent adverse events (TEAEs)

Incidence of Serious Adverse Events of ZL-1310 as a single agent (Part 1A), in combination with atezolizumab (Part 1B), and in combination with atezolizumab and carboplatin (Part 1C)
up to 24 months

Number of subjects with serious adverse events

Incidence of Treatment Emergent Adverse Events of ZL-1310 as a single agent (Part 2), in combination with atezolizumab (Part 3) and in combination with atezolizumab and carboplatin (Part 4)
up to 24 months

Number of subjects with treatment emergent adverse events leading to dose modifications and/or study treatment discontinuation

Incidence of Serious Adverse-Events (SAEs) of ZL-1310 as a single agent (Part 2), in combination with atezolizumab (Part 3), and in combination with atezolizumab and carboplatin (Part 4)
up to 24 months

Number of subjects with serious adverse events

Antitumor activity per RECIST v1.1 by investigator's assessment of ZL-1310 as a single agent (Part 2), in combination with atezolizumab (Part 3), and in combination with atezolizumab and carboplatin (Part 4)
up to 24 months

antitumor activity per RECIST v1.1 by investigator's assessment

Objective response rate (ORR) per RECIST v1.1 of ZL-1310 as a single agent (Part 2) and in combination with atezolizumab and carboplatin (Part 4)
up to 24 months

objective response rate per RECIST v1.1

Disease control rate (DCR) per RECIST v1.1 of ZL-1310 in combination with atezolizumab
up to 24 months

disease control rate per RECIST v1.1

Secondary Endpoints
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 27 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 27 months
Confirmed ORR assessed by the investigator per RECIST v1.1 of ZL-1310 compared to Investigator's Choice Therapy (ICT)
up to 27 months
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Arm 1EXPERIMENTALZL-1310 as a single agent
Arm 2ACTIVE_COMPARATORInvestigator's Choice of Therapy
Single ArmEXPERIMENTALZL-1310 as a single agent
Dose Escalation: Part 1AEXPERIMENTALZL-1310 as a single-agent
Dose Expansion: Part 1BEXPERIMENTALZL-1310 in combination with Atezolizumab
Dose Escalation: Part 1CEXPERIMENTALZL-1310 in combination with Atezolizumab and Carboplatin as induction and followed by ZL-1310 and Atezolizumab as maintenance
Dose Expansion: Arm 1 (Part 2)EXPERIMENTALDose level 1 of ZL-1310 established from single-agent dose-escalation
Dose Expansion: Arm 2 (Part 2)EXPERIMENTALDose level 2 of ZL-1310 established from single-agent dose escalation
Dose Extension: Arm 1 (Part 2)EXPERIMENTALZL-1310 as a single agent
Doublet Dose Optimization: Arm 1 (Part 3A)EXPERIMENTALDose level 1 of ZL-1310 established from single agent dose escalation, in combination with Atezolizumab
Doublet Dose Optimization: Arm 2 (Part 3A)EXPERIMENTALDose level 2 of ZL-1310 established from single agent dose escalation in combination with Atezolizumab
Triplet Dose Optimization: Arm 1 (Part 4A)EXPERIMENTALDose level 1 of ZL-1310 established from single agent dose escalation in combination with Atezolizumab + Carboplatin induction followed by ZL-1310 + Atezolizumab as maintenance
Triplet Dose Optimization: Arm 2 (Part 4A)EXPERIMENTALDose level 2 of ZL-1310 established from single agent dose escalation, in combination with Atezolizumab + Carboplatin induction followed by ZL-1310 + atezolizumab as induction
Dose Extension: Part 2-1EXPERIMENTALsingle-agent dose extension for Post-anti-DLL3
Doublet Dose Extension: Part 3BEXPERIMENTALDoublet dose extension for 1L maintenance only OR 1L induction + maintenance; to be initiated at the discretion of the sponsor based on the available emerging data.
Triplet Dose Extension: Part 4BEXPERIMENTALTriplet dose extension for 1L induction + maintenance; to be initiated at the discretion of the sponsor based on the available emerging data.
Interventions
NameTypeDescription
ZL-1310DRUGZL-1310 as a single-agent
Investigator's Choice of TherapyDRUGTopotecan, Lurbinectedin, or Amrubicin
AtezolizumabDRUGDrug Atezolizumab
CarboplatinDRUGDrug Carboplatin
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Eligibility Criteria
Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites76

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...

Countries:United StatesAustriaChinaJapanNetherlandsSpainTurkey (Türkiye)United Kingdom
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Competitive Landscape -Non-Small Cell Lung Cancer 395 trials (matched to "Small-cell Lung Cancer")
Recent Changes (Last 90 Days)
LOWJul 24, 2026NCT06179069lastUpdatePostDate: changed
LOWJul 24, 2026NCT06885281lastUpdatePostDate: changed
LOWJul 24, 2026NCT06179069lastUpdatePostDate: changed
LOWJul 24, 2026NCT06885281lastUpdatePostDate: changed
LOWJul 20, 2026NCT07218146lastUpdatePostDate: changed
LOWJul 20, 2026NCT07218146lastUpdatePostDate: changed
LOWJul 15, 2026NCT07218146lastUpdatePostDate: changed
LOWJul 15, 2026NCT07218146lastUpdatePostDate: changed
MEDIUMJul 7, 2026NCT06885281Enrollment: 112 → 166
MEDIUMJul 7, 2026NCT06885281Enrollment: 112 → 166
LOWJun 23, 2026NCT07218146lastUpdatePostDate: changed
LOWJun 23, 2026NCT07218146lastUpdatePostDate: changed
LOWMay 26, 2026NCT06885281primaryCompletionDate: changed
LOWMay 26, 2026NCT06179069Enrollment: 112 → 339
LOWMay 26, 2026NCT07218146primaryCompletionDate: changed
LOWMay 24, 2026NCT06885281studyFirstPostDate: changed
LOWMay 24, 2026NCT06179069studyFirstPostDate: changed
LOWMay 24, 2026NCT07218146studyFirstPostDate: changed