Safety and Efficacy of XmAb18087 ± Pembrolizumab in Advanced Merkel Cell Carcinoma or Extensive-stage Small Cell Lung Cancer
This is a Phase 1b/2, multiple-dose study designed to describe safety and efficacy, and to assess PK and immunogenicity of XmAb18087 monotherapy and in combination with pembrolizumab in participants with metastatic Merkel cell (MCC) or locoregional MCC that has recurred after locoregional therapy with surgery and/or radiation therapy, and mAb18087 monotherapy in participants with extensive-stage small cell lung cancer (SCLC) that has progressed after standard therapies. This study was terminated by the sponsor. No participants enrolled in Part B.
Ask AI to explain this studyKey things to know
This describes the study’s primary purpose.
The study team can explain what participation involves.
These are broad labels—not an eligibility decision.
Checked against the public recordLast updated Apr 20, 2023 · Source: ClinicalTrials.gov
Ask the study team to confirm whether enrollment is open.
Interventional
Locations may change over time.
Study sponsor
What this study is about
- Purpose
- Treatment
- Study type
- Interventional
- Phase
- Phase 1 / Phase 2
- Sponsor
- Xencor, Inc.
- Interventions being studied
- Biological: XmAb18087; Drug: XmAb18087 ± Pembrolizumab
How this study is categorized
These labels come from structured fields and exact terms in the public record.
Who may be able to participate
The sponsor separates these requirements into two groups. You do not need to interpret them alone—use them to guide a conversation with the study team.
- Able to provide written informed consent
- Adult participants ≥ 18 years
- Disease measurable by RECIST 1.1 criteria using either computed tomography (CT) or magnetic resonance imaging (MRI) scan
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
- All participants must have adequate archival tumor sample (slides or archival formalin-fixed paraffin-embedded \[FFPE\] block\[s\] containing tumor that has not been previously irradiated
- Female participants of childbearing potential must agree to use a highly effective method of birth control during and for 4 weeks after completion of study. success), or sexual abstinence
- Fertile male participants must be willing to practice a highly effective method of birth control for the duration of the study and continuing for 4 weeks after the last dose of XmAb18087 or pembrolizumab (when applicable
- Able and willing to complete the entire study according to the study schedule Additional Inclusion Criteria for Part A and Part B Cohorts:
- Histologically or cytologically confirmed metastatic MCC or locoregional MCC that has recurred following standard locoregional therapy with surgery and/or radiation therapy. Additional Inclusion Criteria for Part A Cohorts:
- Participants must have progressed on or been ineligible for treatment with anti-PD1 or anti-PDL1 therapy. Additional Inclusion Criteria for Part B Cohorts:
- Participants must be eligible to receive pembrolizumab as standard of care. Additional Inclusion Criteria for Part C Cohorts:
- Histologically or cytologically confirmed extensive-stage SCLC that has progressed following standard therapies
Additional
Important: This is the sponsor’s public criteria, not a determination of eligibility. The study team must review your individual situation.
U.S. locations
- City of HopeDuarte, California
- USC/Norris Comprehensive Cancer CenterLos Angeles, California
- Dartmouth Hitchcock Medical CenterLebanon, New Hampshire
- Memorial Sloan KetteringNew York, New York
- OU Health, Stephenson Cancer CenterOklahoma City, Oklahoma
- Swedish Cancer InstituteSeattle, Washington
- University of WashingtonSeattle, Washington
Source and freshness
Processed from ClinicalTrials.gov. Last public update: Apr 20, 2023. Always confirm current availability with the study team.