Study of XB010 for Advanced Solid Tumors

This study is testing a new drug called XB010, both alone and with pembrolizumab, for people with advanced solid tumors like esophageal, head and neck, non-small cell lung, or hormone-receptor-positive breast cancer. You might be able to join if your cancer is inoperable, locally advanced, metastatic, or has come back, and if other treatments haven't worked or you can't tolerate them. The main goals are to find a safe and effective dose of XB010 and to see how well it's tolerated over 18 months. You need to be at least 18 years old and have good overall health and organ function to participate. The study is currently recruiting about 396 participants.

Study design
This is an interventional study with two stages: Dose-Escalation and Cohort-Expansion. It aims to determine safe dosages and then explore the drug's activity in specific tumor types.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
The primary endpoints for safety and tolerability are measured at 18 months.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT06545331

Study of XB010 in Subjects With Solid Tumors

Recruiting
PHASE1Ages 18+InterventionalTreatment
Exelixis
~396 participants
Updated 2026-06-22 on ClinicalTrials.gov
What's tested:XB010Pembrolizumab

At a glance

Recruiting sites
20 of 20 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Dose-Escalation Stage: Maximum tolerated dose (MTD) and/or Recommended dose(s) for Expansion [RDE(s)] for XB010
Measured over 18 months
+4 more outcomes measured
Locally Advanced or Metastatic Solid Tumors
Esophageal Squamous Cell Cancer
Head and Neck Squamous Cell Cancer
NSCLC (Non-small Cell Lung Cancer)
Hormone-receptor-positive Breast Cancer
Triple Negative Breast Cancer (TNBC)
20 sites across 13 states
United Kingdom4
Texas3
California2
Virginia2
District of Columbia1
Florida1
Georgia1
Illinois1
  • Study Director · STUDY_DIRECTOR · Exelixis

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  • Dose-Escalation Stage: Maximum tolerated dose (MTD) and/or Recommended dose(s) for Expansion [RDE(s)] for XB01018 months

    To determine the MTD and/or RDE(s) for further evaluation of IV administration of XB010 alone and in combination therapy.

  • Dose-Escalation Stage: Safety of XB01018 months

    To evaluate the safety of XB010 alone and in combination therapy through the evaluation of incidence and severity of nonserious adverse events (AEs) and serious adverse events (SAEs)

  • Dose-Escalation Stage: Duration of exposure of XB010 [Tolerability]18 months

    To evaluate the tolerability of XB010 alone and in combination therapy through the evaluation of the duration of exposure of each component

  • Dose-Escalation Stage: Dose intensity of XB010 [Tolerability]18 months

    To evaluate the tolerability of XB010 alone and in combination therapy through the evaluation of the dose intensity of each component

  • Cohort-Expansion Stage: Preliminary antitumor activity of XB01024 months

    Objective Response Rate (ORR) as assessed by the Investigator per RECIST 1.1