A Study of Sofe-M in Participants With Selected Advanced Solid Tumors

November 3, 2026 updated by: Eli Lilly and Company

A First-in-Human, Phase 1/2 Trial to Assess the Safety, Tolerability and Preliminary Efficacy of Sofetabart Mipitecan (LY4170156), an Antibody-Drug Conjugate Targeting Folate Receptor α-Expressing Tumor Cells, in Participants With Selected Advanced Solid Tumors

The purpose of this study is to find out whether the study drug, Sofetabart Mipitecan (LY4170156), is safe, tolerable and effective in participants with advanced solid tumors. The study is conducted in three parts - phase Ia (dose-escalation, dose-optimization), phase Ib (dose-expansion), and phase 2 (dose expansion). The study will last up to approximately 5 years.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

575

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

  • Name: Trial questions or participation questions: 1-877-CTLILLY (1-877-285-4559) or
  • Phone Number: 1-317-615-4559
  • Email: LillyTrials@Lilly.com

Study Contact Backup

Study Locations

      • Adelaide, Australia, 5000
        • Recruiting
        • Cancer Research SA
        • Principal Investigator:
          • Meena Okera
      • QLD, Australia, 4101
        • Recruiting
        • Icon Cancer Centre South Brisbane
        • Principal Investigator:
          • Jermaine Coward
      • Lyon, France, 69373
        • Recruiting
        • Centre Leon Berard
        • Principal Investigator:
          • Isabelle Ray-Coquard
        • Contact:
          • Phone Number: +33478782644
      • Saint-Herblain, France, 44805
        • Recruiting
        • Institut de Cancerologie de l'Ouest - site St-Herblain
        • Principal Investigator:
          • Mario Campone
        • Contact:
          • Phone Number: +33 02 40 67 99 00
      • Toulouse, France, 31059
        • Recruiting
        • Oncopole Claudius Regaud
        • Principal Investigator:
          • Carlos Gomez-Roca
      • Milan, Italy, 20141
        • Recruiting
        • Istituto Europeo di Oncologia
        • Principal Investigator:
          • Giuseppe Curigliano
        • Contact:
          • Phone Number: +39 02 5748 9599
      • Milan, Italy, 20159
        • Recruiting
        • Humanitas San Pio X
        • Principal Investigator:
          • Domenica Lorusso
      • Shizuoka, Japan, 411-8777
        • Recruiting
        • Shizuoka Cancer Center
        • Contact:
          • Phone Number: 81120023812
        • Principal Investigator:
          • Haruyasu Murakami
      • Tokyo, Japan, 104-0045
        • Recruiting
        • National Cancer Center Hospital
        • Contact:
          • Phone Number: 81120023812
        • Principal Investigator:
          • Takafumi Koyama
      • Tokyo, Japan, 135-8550
        • Recruiting
        • Cancer Institute Hospital of JFCR
        • Principal Investigator:
          • Shigehisa Kitano
        • Contact:
          • Phone Number: 81120023812
      • Goyang-si Gyeonggi-do, South Korea, 10408
        • Recruiting
        • National Cancer Center
        • Principal Investigator:
          • Myong Cheol Lim
        • Contact:
          • Phone Number: 82-1588-8110
      • Barcelona, Spain, 08035
        • Recruiting
        • Hospital Universitario Vall d'Hebron
        • Contact:
          • Phone Number: +34 932543450
        • Principal Investigator:
          • Roberta Mazzeo
      • Madrid, Spain, 28041
        • Recruiting
        • Hospital Universitario 12 de Octubre
        • Contact:
          • Phone Number: +34 913908922
        • Principal Investigator:
          • Ainhoa Madariaga Urrutia
      • Valencia, Spain, 46010
        • Recruiting
        • Hospital Clinico Universitario de Valencia
        • Principal Investigator:
          • Jose Alejandro Perez Fidalgo
        • Contact:
          • Phone Number: +34 961973527
    • Arizona
      • Scottsdale, Arizona, United States, 85258
        • Recruiting
        • HonorHealth
        • Contact:
          • Phone Number: 480-323-1350
        • Principal Investigator:
          • Muhammad Khawaja
    • California
      • La Jolla, California, United States, 92037
        • Recruiting
        • University of California, San Diego (UCSD) - Moores Cancer Center
        • Principal Investigator:
          • Ramez Eskander
        • Contact:
          • Phone Number: 858-657-7000
    • Georgia
      • Atlanta, Georgia, United States, 30308
        • Recruiting
        • Emory University
        • Principal Investigator:
          • Beryl Manning-Geist
    • Michigan
      • Grand Rapids, Michigan, United States, 49546
        • Recruiting
        • South Texas Accelerated Research Therapeutics (START) Midwest
        • Principal Investigator:
          • Nehal Lakhani
        • Contact:
          • Phone Number: 616-389-1652
    • New York
      • Mineola, New York, United States, 11501
        • Recruiting
        • NYU Langone Health - Long Island
        • Principal Investigator:
          • Bhavana Pothuri
      • New York, New York, United States, 10065
        • Recruiting
        • David H. Koch Center for Cancer Care at Memorial Sloan Kettering Cancer Center
        • Principal Investigator:
          • Chrisann Kyi
      • New York, New York, United States, 10016
        • Recruiting
        • New York University (NYU) Clinical Cancer Center
        • Principal Investigator:
          • Bhavana Pothuri
        • Contact:
          • Phone Number: 212-731-5100
    • Ohio
      • Columbus, Ohio, United States, 43210
        • Recruiting
        • The Ohio State University (OSU) Wexner Medical Center
        • Principal Investigator:
          • David O'Malley
    • Texas
      • Houston, Texas, United States, 77030-4000
        • Recruiting
        • The University of Texas - MD Anderson Cancer Center
        • Principal Investigator:
          • Shannon Westin
    • Utah
      • West Valley City, Utah, United States, 84119
        • Recruiting
        • START Mountain Region
        • Principal Investigator:
          • William McKean
    • Virginia
      • Falls Church, Virginia, United States, 22042
        • Not yet recruiting
        • Inova Schar Cancer Institute
        • Principal Investigator:
          • Leslie Randall

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Have one of the following solid tumor cancers:

    • Dose Escalation: Ovarian (epithelial ovarian, primary peritoneal, and fallopian tube) cancer, endometrial cancer, cervical cancer, non-small cell lung cancer (NSCLC), triple negative breast cancer (TNBC), pancreatic cancer, or colorectal cancer (CRC)
    • Dose Optimization: Ovarian (epithelial ovarian, primary peritoneal, and fallopian tube) and endometrial cancer
    • Dose Expansion: Low grade serous ovarian cancer, cervical cancer, NSCLC, TNBC, and high grade endometrioid cancer

Exclusion Criteria:

  • Individual with known or suspected uncontrolled central nervous system (CNS) metastases
  • Individual with history of carcinomatous meningitis
  • Individual with active uncontrolled systemic bacterial, viral, fungal, or parasitic infection
  • Individual with evidence of corneal keratopathy or history of corneal transplant
  • Any serious unresolved toxicities from prior therapy
  • Significant cardiovascular disease
  • Prolongation of QT interval corrected for heart rate using Fridericia's formula (QTcF) ≥ 470 milliseconds (ms)
  • History of pneumonitis/interstitial lung disease
  • Individuals who are pregnant, breastfeeding or plan to breastfeed during study or within 30 days of last dose of study intervention

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Sofe-M (Dose-escalation, Cohort A1)

Escalating doses of Sofe-M administered intravenously (IV)

Intravenous

Other Names:
  • sofetabart mipitecan
  • LY4170156
Experimental: Sofe-M (Cohort A1 Parts A and C)

Sofe-M administered IV

Intravenous

Other Names:
  • sofetabart mipitecan
  • LY4170156
Experimental: Sofe-M Alone or with Itraconazole. Drug-Drug Interaction (DDI) (Cohort A1: Arm B)

Sofe-M administered IV and itraconazole administered orally

Intravenous

Other Names:
  • sofetabart mipitecan
  • LY4170156

oral

Experimental: Sofe-M (Dose-optimization, Cohort A2)

Comparing 2 or more doses (evaluated during dose escalation) of Sofe-M administered IV

Intravenous

Other Names:
  • sofetabart mipitecan
  • LY4170156
Experimental: Sofe-M (Enrichment Cohort A3)

Monotherapy administered IV

Intravenous

Other Names:
  • sofetabart mipitecan
  • LY4170156
Experimental: Sofe-M (Combination Cohort A4)

Combination with bevacizumab administered IV

Intravenous

Other Names:
  • sofetabart mipitecan
  • LY4170156

IV

Experimental: Sofe-M (Combination Cohort A5)

Combination with carboplatin administered IV

Intravenous

Other Names:
  • sofetabart mipitecan
  • LY4170156

IV

Experimental: Sofe-M Combination with Pembrolizumab (Dose-optimization Cohort A6)

Comparing 2 or more doses (evaluated during dose escalation) of Sofe-M administered IV with pembrolizumab

Intravenous

Other Names:
  • sofetabart mipitecan
  • LY4170156

IV

Experimental: Sofe-M Combination with carboplatin and optional bevacizumab (Dose-optimization Cohort A7)

Comparing 2 or more doses (evaluated during dose escalation) of Sofe-M administered IV with or without bevacizumab

Intravenous

Other Names:
  • sofetabart mipitecan
  • LY4170156

IV

IV

Experimental: Sofe-M (Dose-expansion, Cohort B2-B4)

Sofe-M administered IV

Intravenous

Other Names:
  • sofetabart mipitecan
  • LY4170156
Experimental: Sofe-M (Dose-expansion, Cohort B1)

Sofe-M administered IV

Intravenous

Other Names:
  • sofetabart mipitecan
  • LY4170156

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Phase 1a: To determine the recommended phase 2 dose (RP2D) of Sofe-M (LY4170156)
Time Frame: 1 Cycle (21 or 28 days)

Number of participants with dose-limiting toxicities (DLTs)

1 Cycle (21 or 28 days)
Phase 1a: To determine the RP2D or optimal dose of Sofe-M (LY4170156) with bevacizumab
Time Frame: 1 Cycle (21 or 28 days)

Number of participants with DLTs

1 Cycle (21 or 28 days)
Phase 1a: To determine the RP2D or optimal dose of Sofe-M (LY4170156) with carboplatin
Time Frame: 1 Cycle (21 or 28 days)

Number of participants with DLTs

1 Cycle (21 or 28 days)
Phase 1a: To determine the RP2D or optimal dose of Sofe-M (LY4170156) with pembrolizumab
Time Frame: 1 Cycle (21 or 28 days)

Number of participants with DLTs

1 Cycle (21 or 28 days)
Phase 1b: To assess the antitumor activity of Sofe-M (LY4170156) Monotherapy: Overall response rate (ORR)
Time Frame: Up to Approximately 60 Months or 5 Years

ORR per investigator assessed Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1)

Up to Approximately 60 Months or 5 Years
Phase 2: To assess the antitumor activity of Sofe-M (LY4170156) Monotherapy: ORR
Time Frame: Up to Approximately 60 Months or 5 Years

ORR per RECIST 1.1

Up to Approximately 60 Months or 5 Years
Number of Participants with One or More Serious Adverse Event(s) (SAEs) Considered by the Investigator to be Related to Study Drug Administration
Time Frame: Up to Approximately 60 Months or 5 Years

A summary of SAEs regardless of causality, will be reported in the Reported Adverse Events module

Up to Approximately 60 Months or 5 Years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To characterize the pharmacokinetics (PK) properties of Sofe-M (LY4170156): Minimum Plasma Concentration (Cmin)
Time Frame: First 4 Cycles (84 days)

PK: Cmin of Sofe-M (LY4170156)

First 4 Cycles (84 days)
To characterize the PK properties of Sofe-M (LY4170156): Cmin with bevacizumab or carboplatin
Time Frame: First 4 Cycles (Approximately 84 days)

PK: Cmin of Sofe-M (LY4170156)

First 4 Cycles (Approximately 84 days)
To characterize the PK properties of Sofe-M (LY4170156): Cmin with pembrolizumab
Time Frame: First 4 Cycles (84 days)

PK: Cmin of Sofe-M (LY4170156)

First 4 Cycles (84 days)
To characterize the PK properties of Sofe-M (LY4170156): Area under the concentration versus time curve (AUC)
Time Frame: First 4 Cycles (84 days)

PK: AUC of Sofe-M (LY4170156)

First 4 Cycles (84 days)
To characterize the patient-reported outcomes (PRO) Common Terminology Criteria for Adverse Events (CTCAE) of Sofe-M (LY4170156)
Time Frame: Up to Approximately 60 Months or 5 Years

PRO-CTCAE of Sofe-M (LY4170156)

Up to Approximately 60 Months or 5 Years
To evaluate the preliminary antitumor activity of Sofe-M (LY4170156): Overall response rate (ORR)
Time Frame: Up to Approximately 60 Months or 5 Years

ORR per investigator assessed Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1)

Up to Approximately 60 Months or 5 Years
To evaluate the preliminary antitumor activity of Sofe-M (LY4170156): Overall response rate (ORR) with bevacizumab or carboplatin or pembrolizumab
Time Frame: Up to Approximately 60 Months or 5 Years

ORR per investigator assessed Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1)

Up to Approximately 60 Months or 5 Years
To evaluate the preliminary antitumor activity of Sofe-M (LY4170156): Duration of response (DOR)
Time Frame: Up to Approximately 60 Months or 5 Years

DOR per investigator assessed RECIST 1.1

Up to Approximately 60 Months or 5 Years
To evaluate the preliminary antitumor activity of Sofe-M (LY4170156): Duration of response (DOR) with bevacizumab or carboplatin or pembrolizumab
Time Frame: Up to Approximately 60 Months or 5 Years

DOR per investigator assessed RECIST 1.1

Up to Approximately 60 Months or 5 Years
To evaluate the preliminary antitumor activity of Sofe-M (LY4170156): Time to response (TTR)
Time Frame: Up to Approximately 60 Months or 5 Years

TTR per investigator assessed RECIST 1.1

Up to Approximately 60 Months or 5 Years
To evaluate the preliminary antitumor activity of Sofe-M (LY4170156): Time to response (TTR) with bevacizumab or carboplatin or pembrolizumab
Time Frame: Up to Approximately 60 Months or 5 Years

TTR per investigator assessed RECIST 1.1

Up to Approximately 60 Months or 5 Years
To evaluate the preliminary antitumor activity of Sofe-M (LY4170156): Progression free survival (PFS)
Time Frame: Up to Approximately 60 Months or 5 Years

PFS per investigator assessed RECIST 1.1

Up to Approximately 60 Months or 5 Years
To evaluate the preliminary antitumor activity of Sofe-M (LY4170156): Progression free survival (PFS) with bevacizumab or carboplatin or pembrolizumab
Time Frame: Up to Approximately 60 Months or 5 Years]

PFS per investigator assessed RECIST 1.1

Up to Approximately 60 Months or 5 Years]
To evaluate the preliminary antitumor activity of Sofe-M (LY4170156): Disease control rate (DCR)
Time Frame: Up to Approximately 60 Months or 5 Years

DCR per investigator assessed RECIST 1.1

Up to Approximately 60 Months or 5 Years
To evaluate the preliminary antitumor activity of Sofe-M (LY4170156): Disease control rate (DCR) with bevacizumab or carboplatin or pembrolizumab
Time Frame: Up to Approximately 60 Months or 5 Years

DCR per investigator assessed RECIST 1.1

Up to Approximately 60 Months or 5 Years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Study Director: Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 8 AM - 8 PM Eastern time (UTC/GMT - 5 hours, EST), Eli Lilly and Company

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 20, 2024

Primary Completion (Estimated)

June 1, 2029

Study Completion (Estimated)

June 1, 2029

Study Registration Dates

First Submitted

April 30, 2024

First Submitted That Met QC Criteria

May 1, 2024

First Posted (Actual)

May 6, 2024

Study Record Updates

Last Update Posted (Actual)

November 4, 2026

Last Update Submitted That Met QC Criteria

November 3, 2026

Last Verified

November 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 18863
  • LOXO-FRA-24001 (Other Identifier: Eli Lilly and Company)
  • 2024-511238-11-00 (Ctis)
  • J5E-OX-JZXA (Other Identifier: Eli Lilly and Company)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Anonymized individual patient level data will be provided in a secure access environment upon approval of a research proposal and a signed data sharing agreement.

IPD Sharing Time Frame

Data are available 6 months after the primary publication and approval of the indication studied in the US and European Union (EU), whichever is later. Data will be indefinitely available for requesting.

IPD Sharing Access Criteria

A research proposal must be approved by an independent review panel and researchers must sign a data sharing agreement.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.