Experimental cancer drug ZW171 tested in 32 patients, but study stopped early
NCT ID NCT06523803
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-phase study tested a new drug called ZW171 in 32 people with advanced ovarian, lung, or other cancers that have a protein called mesothelin. The main goals were to check the drug's safety and find the right dose. The study was terminated early, so results are limited.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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32 people
The number who actually took part.
- Started
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Sep 2024
- Finished
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Oct 2025
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Pathologically confirmed diagnosis of cancers with evidence of locally advanced (unresectable) and/or metastatic disease. Cancers that are refractory to all available standard of care (SOC) treatment, cancers for which no SOC treatment is available, or the participant cannot tolerate or refuses SOC therapy. * An Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0 or 1. * Adequate cardiac left ventricular function, as defined by left ventricular ejection fraction ≥ 50% as determined by either echocardiogram or multigated acquisition scan. * Adequate organ function. Exclusion Criteria: * Known additional malignancy that is progressing or that has required active treatment. * Undergone prior allogenic tissue (e.g., hematopoietic stem cell) or solid organ transplantation within the last 5 years. * Ongoing, clinically significant toxicity (Grade ≥ 2) associated with prior cancer therapies, with the exception of alopecia. * Advanced/metastatic, symptomatic, visceral spread, at risk of life-threatening complications in the short-term (including participants with massive uncontrolled effusion \[pleural, pericardial\], pulmonary lymphangitis, active unresolved bowel obstruction, massive ascites \[requiring paracentesis \>2 times within 2 weeks prior to the first dose\], and over 50% liver involvement). * Acute or chronic uncontrolled renal disease, pancreatitis, or liver disease (with exception of participants with Gilbert's Syndrome, asymptomatic gall stones, liver metastases, or stable chronic liver disease per investigator assessment). * Active or recurrent clinically significant autoimmune disease requiring systemic high-dose corticosteroids or immunosuppressive drugs.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Guys and St Thomas' NHS Foundation Trust
London, SE1 9RT, United Kingdom
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Icahn School of Medicine at Mount Sinai (ISMMS) - The Blavatnik Family-Chelsea Medical Center
New York, New York, 10011, United States
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Norton Cancer Institute
Louisville, Kentucky, 40202, United States
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Royal Marsden Hospital
Sutton, SW3 6JJ, United Kingdom
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Samsung Medical Center
Seoul, 06351, South Korea
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Sarah Cannon Research Institute
Nashville, Tennessee, 37203, United States
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Seoul National University Hospital
Seoul, 03080, South Korea
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The Catholic University of Korea, Seoul St. Marys Hospital
Seoul, South Korea
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The Christie NHS Foundation Trust
Manchester, M20 4BX, United Kingdom
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UPMC Hillman Cancer Center
Pittsburgh, Pennsylvania, 15232, United States
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Universitaetsklinikum Dresden
Dresden, 01307, Germany
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University of Colorado Health Sciences Center
Aurora, Colorado, 80045, United States
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University of Southern California - Norris Comprehensive Cancer Center
Los Angeles, California, 90089, United States
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University of Washington
Seattle, Washington, 98195, United States
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Yonsei University Health System - Severance Hospital
Seoul, 03722, South Korea
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