Actively Recruiting

Phase 1
Age: 18Years +
All Genders
NCT07114601

A Study of LY4257496 in Participants With Cancer (OMNIRAY)

Led by Eli Lilly and Company · Updated on 2026-05-14

421

Participants Needed

28

Research Sites

503 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

The main purpose of this study is to evaluate safety, tolerability, and efficacy of LY4257496 alone and as part of relevant standard of care (SOC) combination therapy in participants with Gastrin-releasing Peptide Receptor (GRPR)-positive advanced breast, colorectal, prostate, and endometrial cancer. The study will also evaluate the safety, tolerability, and efficacy of LY4257529 to identify cancer with high levels of a protein called GRPR. This is a 2-part study. Participation could last up to 36 weeks or until your tumor progresses.

CONDITIONS

Official Title

A Study of LY4257496 in Participants With Cancer (OMNIRAY)

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Histologically or cytologically confirmed locally advanced, unresectable, or metastatic cancer
  • At least one measurable target lesion by CT or MRI, or at least two active bone metastases if only bone lesions present
  • GRPR-positive disease confirmed by imaging
  • Diagnosed with ER+/HER2- or ER+/HER2+ breast cancer, colorectal carcinoma, metastatic castration-resistant prostate cancer, endometrial carcinoma (excluding certain sarcomas), or other GRPR-positive solid tumors
  • For breast cancer, ER and HER2 status assessed from recent biopsy per ASCO/CAP guidelines
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  • Able to comply with outpatient treatment, lab tests, imaging, and clinic visits for study duration
Not Eligible

You will not qualify if you...

  • Previously received radiopharmaceutical or radioligand therapy (except for 177Lu-PSMA-617 in mCRPC participants in Phase 1a)
  • History of ongoing acute pancreatitis within 1 year prior to screening
  • Prior hemi-body or whole-body radiotherapy, or external beam radiation therapy covering more than 25% of bone marrow
  • Bone superscan showing markedly increased skeletal uptake with absent or faint genitourinary activity
  • Ongoing untreated urinary tract obstruction or unmanageable urinary incontinence
  • Active hepatitis B infection unless on suppressive antiviral therapy with undetectable viral load
  • Active hepatitis C infection unless previously treated with curative therapy and undetectable viral load
  • Untreated HIV infection unless well controlled with stable antiretroviral therapy and no recent opportunistic infections
  • Active second malignancy unless in remission with life expectancy over 2 years
  • Known hypersensitivity to any component of LY4257496

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 28 locations

1

City of Hope

Duarte, California, United States, 91010

Not Yet Recruiting

2

University of California, Los Angeles (UCLA)

Santa Monica, California, United States, 90404

Actively Recruiting

3

Stanford University Medical Center

Stanford, California, United States, 94305

Actively Recruiting

4

Biogenix Molecular, LLC

Miami, Florida, United States, 33165

Actively Recruiting

5

Moffitt

Tampa, Florida, United States, 33612

Not Yet Recruiting

6

Emory University School of Medicine - Winship Cancer Institute

Atlanta, Georgia, United States, 30322

Actively Recruiting

7

Massachusetts General Hospital

Boston, Massachusetts, United States, 02114

Not Yet Recruiting

8

Dana-Farber Cancer Institute

Boston, Massachusetts, United States, 02215

Not Yet Recruiting

9

Barbara Ann Karmanos Cancer Institute

Detroit, Michigan, United States, 48201

Actively Recruiting

10

BAMF Health Inc.

Grand Rapids, Michigan, United States, 49503

Actively Recruiting

11

Washington University

St Louis, Missouri, United States, 63110

Actively Recruiting

12

New York University (NYU) Langone Medical Center

New York, New York, United States, 10016

Not Yet Recruiting

13

David H. Koch Center for Cancer Care at Memorial Sloan Kettering Cancer Center

New York, New York, United States, 10065

Actively Recruiting

14

Texas Oncology - DFW (Sammons CC)

Dallas, Texas, United States, 75246

Not Yet Recruiting

15

MD Anderson Cancer Center

Houston, Texas, United States, 77030

Actively Recruiting

16

Juravinski Cancer Centre

Hamilton, Canada, L8V 5C2

Not Yet Recruiting

17

Lady Davis Institute for Medical Research Jewish General Hospital

Montreal, Canada, H3T 1E2

Not Yet Recruiting

18

Sunnybrook Health Sciences Centre

Toronto, Canada, M4N 3M5

Not Yet Recruiting

19

Princess Margaret Hospital

Toronto, Canada, M5G 2M9

Actively Recruiting

20

Institut Curie

Paris, France, 75005

Not Yet Recruiting

21

Institut de Cancerologie de l'Ouest - site St-Herblain

Saint-Herblain, France, 44805

Not Yet Recruiting

22

Universitaetsklinikum Erlangen

Erlangen, Germany, 91054

Not Yet Recruiting

23

Universitaetsklinikum Essen

Essen, Germany, 45147

Not Yet Recruiting

24

LMU Klinikum Muenchen-Campus Grosshadern

München, Germany, 80336

Not Yet Recruiting

25

Klinikum der Technischen Universitaet Muenchen (TUM Klinikum)

München, Germany, 81675

Not Yet Recruiting

26

National Cancer Center Hospital East

Chiba, Japan, 277-8577

Not Yet Recruiting

27

Kyoto University Hospital

Kyoto, Japan, 606-8507

Not Yet Recruiting

28

Hospital Universitari Quiron Dexeus Barcelona

Barcelona, Spain, 08028

Not Yet Recruiting

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Research Team

T

Trial questions or participation questions: 1-877-CTLILLY (1-877-285-4559) or

CONTACT

P

Physicians interested in becoming principal investigators please contact

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NON_RANDOMIZED

Model

PARALLEL

Primary Purpose

BASIC_SCIENCE

Number of Arms

5

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A Study of LY4257496 in Participants With Cancer (OMNIRAY) | DecenTrialz