A Study of Peluntamig (PT217) in Patients With Neuroendocrine Carcinomas Expressing DLL3 (the SKYBRIDGE Study)

Part of paid clinical trials in Duarte, California.

Sponsor
Phanes Therapeutics
Study ID
NCT05652686
Phase
PHASE1/PHASE2
Status
Recruiting

Conditions

  • Extrapulmonary Neuroendocrine Carcinoma (EP-NEC)
  • Gastroenteropancreatic Neuroendocrine Carcinoma (GEP-NEC)
  • Large Cell Neuroendocrine Cancer (LCNEC)
  • Neuroendocrine Carcinomas (NEC)
  • Neuroendocrine Prostate Cancer (NEPC)
  • Small Cell Lung Cancer (SCLC)

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • Peluntamig (PT217) — DRUG
    A bispecific antibody (bsAb) against DLL3 and CD47.
  • Carboplatin + Etoposide — DRUG
    Administered per Standard of Care.
  • Paclitaxel. — DRUG
    Administered per Standard of Care.
  • Atezolizumab — DRUG
    Administered per Standard of Care.

Study Details

This is a first-in-human, Phase 1/2, open-label, dose escalation, dose expansion and combination study designed to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary efficacy of Peluntamig (PT217) as a monotherapy and in combination with chemotherapy.

Key Dates

Start date
Sep 5, 2023
Status verified
Sep 2025
Primary completion
Dec 31, 2027
Completion
Aug 31, 2028

Study Design

Enrollment
203 participants (estimated)
Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT

Arms

  • Experimental: Part A: Dose Escalation
    A standard 3+3 dose escalation design will be employed.
  • Experimental: Part B: Dose Expansion
    Part B cohorts will open after the dose level considered for RDE has been cleared in Parts A, C and D.
  • Experimental: Part C: Chemotherapy Combination Therapy
    Part C of the study will include Cohorts C1 and C2, combining Peluntamig (PT217) with chemotherapy.
  • Experimental: Part D: ICI Combination Therapy
    In part D, Peluntamig (PT217) will be given in combination with atezolizumab, either alone or in combination with chemotherapy.

Primary Outcome Measure

To determine the dose-limiting toxicity (DLT) of Peluntamig (PT217). [ Time Frame: Through study completion. ]

Central Contacts

Locations (12)

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