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First-in-Human Study of XMT-1536 in Cancers Likely to Express NaPi2b

Non Small Cell Lung Cancer Metastatic Clinical Trial

Official title:
A Phase 1b/2, First-in-Human, Dose Escalation and Expansion Study of XMT-1536 In Patients With Solid Tumors Likely to Express NaPi2b

Clinical Trial Summary

First-in-human, Phase 1b/2 safety study of the antibody-drug conjugate (ADC) XMT-1536 (upifitamab rilsodotin) administered as an intravenous infusion once every four weeks. Patients with tumor types likely to express NaPi2b were enrolled in dose escalation. Patients with platinum-resistant ovarian cancer and non-small cell lung cancer (adenocarcinoma subtype) were enrolled in the expansion segment of this study. Patients with platinum-resistant, high-grade serous ovarian cancer were enrolled in the UPLIFT segment of this study. In addition to safety assessments, the pharmacokinetics of the drug were assessed along with ADC activity. A QTc sub-study was added for the UPLIFT cohort for a sub-set of sites.

Clinical Trial Description

This is a multi-center study of XMT-1536 (upifitamab rilsodotin) in patients with tumors likely to express NaPi2b, focusing on patients with platinum-resistant ovarian cancer and non-small cell lung cancer, adenocarcinoma subtype. XMT-1536 (upifitamab rilsodotin) was administered as an intravenous infusion once every four weeks. The study consisted of three segments: dose escalation (DES), dose expansion (EXP), and the pivotal cohort (UPLIFT). The DES segment studied small groups of patients who received increased doses. A Safety Review Committee was established to review the data from each dose level before moving to the next higher dose. The dose escalation cohort has ended and is no longer enrolling patients. Enrollment into the EXP segment consisted of 2 parallel cohorts of patients to confirm the dose that has been identified in DES and estimate the objective response rate in each patient population. The EXP and UPLIFT cohorts are no longer enrolling patients. All adverse events were graded according to the National Cancer Institute (NCI) Common Terminology Criteria version (CTCAE v5.0). Throughout the study, pharmacokinetics were measured using proprietary assays developed by Mersana. Anti-cancer activity were measured via RECIST. ;

Study Design

Related Conditions & MeSH terms

  • Non Small Cell Lung Cancer Metastatic
  • Platinum Resistant Ovarian Cancer
Clinical Trial Details
NCT number NCT03319628
Study type Interventional
Source Mersana Therapeutics
Contact
Status Active, not recruiting
Phase Phase 1/Phase 2
Start date December 12, 2017
Completion date October 31, 2024
View Details
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