A Study of IDE849 in Patients With DLL3 Expressing Tumors Including Small Cell Lung Cancer

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorIDEAYA Biosciences

About this trial

This is Phase 1/2, multicenter, clinical study to evaluate the safety, efficacy, PK, and immunogenicity of IDE849 in subjects with DLL3-expressing tumors including SCLC.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Are willing to participate in this clinical study, understand the study procedures, and are able to sign the written ICF.

Subjects with histologically or cytologically confirmed ES- SCLC, neuroendocrine carcinoma (NEC), DLL3+ solid tumors, are eligible per protocol. Subjects must have radiologically progressed or recurred after previous standard treatment.

Subjects with NEC, this includes

High-grade gastroenteropancreatic NEC

Disqualifiers

Have mixed SCLC and NSCLC histology are not allowed (SCLC with components of large cell NEC are eligible). Participants with limited stage SCLC are ineligible.

Subjects with locally untreated (radiotherapy or surgery) or active central nervous system (CNS) tumor metastasis.

Have had other malignancies within 2 years prior to the first dose, except adequately treated carcinoma in situ (cervical, breast, or other), basal cell or squamous cell skin cancer, localized prostate cancer after curative therapy with no recurrence, or papillary thyroid cancer after curative resection; other prior or concurrent malignancies may be eligible with Medical Monitor review and approval.

Have uncontrolled tumor-associated pain.

Trial design

Design model

Parallel

Treatments tested in this trial

  • IDE849

    Drug

    IV administration

  • durvalumab

    Drug

    IV administration

  • IDE161

    Drug

    oral administration

  • Carboplatin

    Drug

    IV administration

Treatment groups

262 Participants
are divided into 9 treatment groups

9

Treatment groups

See each treatment group below.

Group A: Part 1A IDE849 Monotherapy (Dose Escalation)Experimental treatment 1 intervention
Group B: Part 1B IDE849 + durvalumab, or IDE849 + durvalumab + carboplatin (Dose Escalation)Experimental treatment 3 interventions
Group C: Part 1B IDE849 + IDE161 (Dose Escalation)Experimental treatment 2 interventions
Group D: Part 2 IDE849 Monotherapy RDE 1 for SCLC (Dose Expansion)Experimental treatment 1 intervention
Group E: Part 2 IDE849 Monotherapy RDE 2 for SCLC (Dose Expansion)Experimental treatment 1 intervention
Group F: Part 2 IDE849 Monotherapy for NEC (Dose Expansion)Experimental treatment 1 intervention
Group G: Part 2 IDE849 + durvalumab (Dose Expansion)Experimental treatment 2 interventions
Group H: Part 2 IDE849 + durvalumab + carboplatin (Dose Expansion)Experimental treatment 3 interventions
Group I: Part 2 IDE849 + IDE161 (Dose Expansion)Experimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

Part 1A: Safety and Tolerability of IDE849 (Monotherapy)

Incidence of dose-limiting toxicities, incidence and severity AEs and SAEs as measured by CTCAE V5.0.

Time frame
approximately 4 years total study duration
2

Part 1B: Safety and Tolerability of IDE849 in Combination with durvalumab or IDE161

Incidence of dose-limiting toxicities, incidence and severity AEs and SAEs as measured by CTCAE V5.0.

Time frame
approximately 4 years total study duration
3

Part 2: Safety and Tolerability of IDE849 (Monotherapy Dose Expansion)

Incidence and severity and relationship of AEs and SAEs as measured by CTCAE V5.0

Time frame
approximately 4 years total study duration
4

Part 2: Safety and Tolerability of IDE849 in Combination with durvalumab or IDE161 or durvalumab + carboplatin (Dose Expansion)

Incidence and severity and relationship of AEs and SAEs graded as measured by CTCAE V 5.0.

Time frame
approximately 4 years total study duration

Secondary outcomes

1

Part 1 and Part 2: Disease Control Rate (DCR) and Investigator Assessment of IDE849 DCR per RECIST 1.

Time frame
approximately 4 years total study duration
2

Part 2: Progression-Free Survival (PFS) PFS per RECIST1.1 PFS per RECIST1.1.

Time frame
approximately 4 years total study duration
3

Part 2: Overall Survival (OS)

Overall Survival (OS) defined as the time from first dose of IDE849 to death due to any cause

Time frame
approximately 4 years total study duration
4

Part 1 and Part 2: Pharmacokinetics (PK) of IDE849 and in combination with durvalumab, durvalumab + carboplatin, and IDE161 Blood concentrations and PK parameters.

Time frame
approximately 4 years total study duration

Other outcomes

Sponsors and contacts

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