Actively Recruiting

Phase 1
Age: 18Years +
All Genders
NCT05377996

A Study of XMT-1660 in Participants With Solid Tumors

Led by Mersana Therapeutics · Updated on 2026-04-14

319

Participants Needed

26

Research Sites

245 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

A Study of XMT-1660 in Solid Tumors

CONDITIONS

Official Title

A Study of XMT-1660 in Participants With Solid Tumors

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Recurrent or advanced solid tumor with active disease
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  • Participants in Dose Expansion must have at least one non-target lesion as defined by RECIST version 1.1
  • Participants in Backfill Cohorts and Dose Expansion must have at least one measurable disease (target) lesion as defined by RECIST version 1.1
  • Available tumor tissue from archival samples or fresh biopsy, or willingness to undergo tumor biopsy before treatment if medically safe
  • Brain MRI during screening if participant has triple negative breast cancer or history/symptoms suggesting brain metastases
Not Eligible

You will not qualify if you...

  • Prior treatment with an Antibody Drug Conjugate containing an auristatin payload
  • Major surgery within 28 days before starting study treatment
  • Systemic anticancer therapy within 28 days or 5 half-lives (14 days or 5 half-lives for small molecule targeted therapy) before starting study treatment
  • Palliative radiation therapy to chest within 3 months or other sites within 14 days before starting study treatment
  • Additional malignancy requiring active treatment within 2 years before screening (except certain skin cancers or carcinoma in situ)
  • Untreated central nervous system metastases or history of leptomeningeal metastasis or carcinomatous meningitis
  • Prior B7-H4 targeted treatment
  • History of cirrhosis, hepatic fibrosis, esophageal or gastric varices, or other significant liver diseases
  • Current severe uncontrolled systemic disease or intercurrent illness increasing risk of serious adverse events
  • Clinically significant cardiovascular disease

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 26 locations

1

Mayo Clinic Comprehensive Cancer Center

Phoenix, Arizona, United States, 85054

Actively Recruiting

2

UC Irvine Health-Chao Family Comprehensive Cancer Center

Orange, California, United States, 92868

Actively Recruiting

3

UCSF Helen Diller Family Comprehensive Cancer Center

San Francisco, California, United States, 94158

Actively Recruiting

4

UCLA David Geffen School of Medicine, Division of Hematology/Oncology

Santa Monica, California, United States, 90404

Actively Recruiting

5

Mayo Clinic - Jacksonville

Jacksonville, Florida, United States, 32224

Actively Recruiting

6

Florida Cancer Specialists

Sarasota, Florida, United States, 34232

Actively Recruiting

7

Moffitt Cancer Center

Tampa, Florida, United States, 33612

Actively Recruiting

8

Winship Cancer Institute, Emory University

Atlanta, Georgia, United States, 30322

Actively Recruiting

9

Northwestern University

Chicago, Illinois, United States, 60611

Actively Recruiting

10

Beth Israel Deaconess Medical Center

Boston, Massachusetts, United States, 02215

Actively Recruiting

11

Dana-Farber Cancer Institute

Boston, Massachusetts, United States, 02215

Actively Recruiting

12

Henry Ford Health Hospital

Detroit, Michigan, United States, 48202

Actively Recruiting

13

Mayo Clinic - Rochester

Rochester, Minnesota, United States, 55905

Actively Recruiting

14

Comprehensive Cancer Centers of Nevada

Las Vegas, Nevada, United States, 89169

Actively Recruiting

15

New York University Langone Health

New York, New York, United States, 10016

Actively Recruiting

16

ICHAN School of Medicine at Mount Sinai

New York, New York, United States, 10029

Not Yet Recruiting

17

Memorial Sloan Kettering Cancer Center

New York, New York, United States, 10065

Actively Recruiting

18

Stephenson Cancer Center Oklahoma University Health

Oklahoma City, Oklahoma, United States, 73104

Actively Recruiting

19

Avera Cancer Institute

Sioux Falls, South Dakota, United States, 57105

Actively Recruiting

20

Sarah Cannon Research Institute (SCRI)

Nashville, Tennessee, United States, 37203

Actively Recruiting

21

Texas Oncology, P.A.

Dallas, Texas, United States, 75251

Actively Recruiting

22

MD Anderson

Houston, Texas, United States, 77030

Actively Recruiting

23

Huntsman Cancer Institute

Salt Lake City, Utah, United States, 84112

Actively Recruiting

24

NEXT Oncology Virginia

Fairfax, Virginia, United States, 22031

Actively Recruiting

25

Fred Hutchinson Cancer Center

Seattle, Washington, United States, 09109

Actively Recruiting

26

Summit Cancer Centers

Spokane, Washington, United States, 99208

Actively Recruiting

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Research Team

C

Caroline Rogalski

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

TREATMENT

Number of Arms

1

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