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A Study of XMT-1660 in Participants With Solid Tumors

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Brief Summary

A Study of XMT-1660 in Solid Tumors

Primary Purpose
The main objective of the intervention(s) being evaluated by the clinical trial. Learn more
Treatment
Study Type
The nature of the investigation or investigational use for which clinical study information is being submitted. Learn more
Interventional
Phase
Phase 1

Eligibility

Gender
All
Healthy Volunteers
No
Minimum Age
18 Years
Maximum Age
N/A

Inclusion Criteria:

  • Recurrent or advanced solid tumor and has disease
  • Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1
  • Participants in DES must have at least one non-target lesion as defined by RECIST version 1.1. Participants in Backfill Cohorts and EXP must have at least one measurable disease (target) lesion as defined by RECIST version 1.1.
  • Tumor tissue, either archival or from a fresh tumor biopsy, available for testing or be willing to undergo a minimally invasive tumor biopsy to obtain tumor tissue for local testing, if not medically contraindicated, prior to Cycle 1 Day 1
  • Brain magnetic resonance imaging (MRI) during the Screening period unless obtained within 30 days prior to Screening (based on standard clinical care), if they meet either of the following criteria:
    • All participants with TNBC
    • Participants with a history of brain metastases or with neurologic symptoms or signs suspicious for brain metastases.

Exclusion Criteria:

  • Prior treatment with an Antibody Drug Conjugate (ADC) containing an auristatin payload. Prior treatment with another ADC containing other payloads is allowed.
  • Major surgery within 28 days of starting study treatment, systemic anticancer therapy within the time period of 28 days or 5 half-lives of the prior therapy before starting study treatment (14 days or 5 half-lives for small molecule targeted therapy), whichever is less, or palliative radiation therapy to the chest within 3 months of starting study treatment or to other anatomic sites within 14 days of starting study treatment.
  • Diagnosis of additional malignancy that required active treatment (including surgery, systemic therapy, and radiation) within 2 years prior to screening, except for adequately treated basal cell or squamous cell skin cancer, or carcinoma in situ of the breast or of the cervix.
  • Untreated CNS metastases (including new and progressive brain metastases), history of leptomeningeal metastasis or carcinomatous meningitis.
  • Prior B7-H4 targeted treatment.
  • History of cirrhosis, hepatic fibrosis, esophageal or gastric varices, or other clinically significant liver diseases.
  • Current severe, uncontrolled systemic disease (e.g. clinically significant cardiovascular, pulmonary, or metabolic disease) or intercurrent illness that could increase the risk of serious adverse events (SAEs) or interfere with per-protocol evaluations, in the judgment of either the Sponsor or the Investigator.
  • Clinically significant cardiovascular disease
Study Stats
Protocol No.
23-001369
Category
Adolescent & Young Adults (AYA)
Breast Cancer
Principal Investigator
Nicholas P. McAndrew, MD, MSCE
Nicholas P. McAndrew, MD, MSCE
Breast Medical Oncology
Nicholas P. McAndrew, MD, MSCE
Contact
  • Monica Rocha
Location
  • UCLA Burbank
  • UCLA Parkside
For Providers
NCT No.
NCT05377996
For detailed technical eligibility, visit ClinicalTrials.gov.