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Study of IMC-P115C in Advanced PRAME-Positive Cancers

A Phase 1 First-in-Human Study of the Safety and Efficacy of IMC-P115C as a Single Agent and in Combination With Standard of Care Agents in HLA-A*02:01 Positive Participants With Advanced PRAME Positive Cancers

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07156136
Enrollment
140
Registered
2025-09-04
Start date
2024-11-07
Completion date
2029-08-30
Last updated
2026-02-25

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

Conditions

Cancer, HLA-A*02:01-positive, PRAME Positive

Keywords

PRAME

Brief summary

Phase 1 First-in-human study of the safety and efficacy of IMC-P115C as a single agent and in combination with standard of care (SOC) agents in participants with advanced PRAME positive cancers. IMC-P115C is a half-life extended (HLE) ImmTAC targeting PRAME.

Interventions

DRUGIMC-P115C

IV infusion

Sponsors

Immunocore Ltd
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

The study will include sequential assignment for non-randomized and randomized arms.

Eligibility

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

Inclusion criteria

* Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1 * HLA-A\*02:01-positive * Meeting PRAME-positive tumor testing requirements * Metastatic or unresectable solid tumors * Have received (or be receiving), relapsed from, be refractory to or intolerant of all therapies * Male and female participants of childbearing potential who are sexually active with a non-sterilized partner must agree to use highly effective methods of birth control

Exclusion criteria

* Symptomatic or untreated central nervous system metastasis * Bowel obstruction, perforation, or fistula formation within 3 months prior to the planned first dose of study treatment * Ongoing ascites or effusion requiring recent drainages * Significant ongoing toxicity from prior anticancer treatment * Out-of-range laboratory values * Clinically significant lung, heart, or autoimmune disease * Ongoing requirement for immunosuppressive treatment * Significant secondary malignancy * Hypersensitivity to study drug or excipients * Pregnant or lactating

Design outcomes

Primary

MeasureTime frameDescription
Percentage of participants with dose-limiting toxicities (DLT)Up to ~16 months
Percentage of participants with adverse events (AE)Up to ~16 months
Percentage of participants with serious adverse events (SAE)Up to ~16 months
Percentage of participants with a dose interruption, reduction, or discontinuationUp to ~16 monthsPercentage of participants with dosing changes or discontinuations.

Secondary

MeasureTime frameDescription
Best Overall Response (BOR) as determined by RECIST v1.1 per the Investigator.Up to ~19 months
Duration of Response (DOR) as determined by RECIST v1.1 per the Investigator.Up to ~19 months
Progression Free Survival (PFS) as determined by RECIST v1.1 per the Investigator.Up to ~19 months
Overall Survival (OS)Up to ~19 monthsOS is the time from first dose of study therapy until death due to any cause.
Change from baseline in lymphocyte countsUp to ~19 monthsChange from baseline in lymphocyte counts
Changes in serum cytokine concentrationsUp to ~19 monthsChange from baseline in serum cytokine concentrations
IMC-P115C Plasma ConcentrationUp to ~19 monthsIMC-P115C plasma concentration
Percentage of participants with anti-IMC-P115C antibody formationUp to ~19 months

Countries

Australia, France, Italy, Spain

Contacts

CONTACTImmunocore Medical Information Global
medical.information@immunocore.com844-466-8661
CONTACTImmunocore Medical Information EU
medinfo.eu@immunocore.com+00 800-744-51111

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026