Can a pill target Hard-to-Treat ovarian cancers?
NCT ID NCT05226507
First seen Aug 06, 2026 · Last updated Aug 07, 2026 · Updated 1 time
Summary
This early-stage trial is testing an experimental oral drug called NXP800 in people with advanced solid tumors that have not responded to standard treatments. The study has two parts: first, to find the safest dose and schedule, and then to see if the drug shows promise in specific ovarian cancers that carry an ARID1A gene mutation. The goal is to understand the drug's safety and whether it can shrink or control these tumors.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- NXP800, an oral small molecule drug
- What this could lead to
- If successful, NXP800 could become a new treatment option for advanced solid tumors, especially ovarian cancers with ARID1A mutations.
- What could go wrong
- This is an early-phase trial with a small number of participants, so the drug may not prove effective or safe. Side effects and dose-limiting toxicities are possible.
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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45 people
The number who actually took part.
- Started
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Dec 2021
- Finished
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Jan 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.
Part A Inclusion Criteria: * Provide written informed consent. * 18 years old or older. * Life expectancy of at least 12 weeks. * Histologically- or cytologically-confirmed, advanced, metastatic, and/or progressive solid tumors for whom there is no authorized or effective therapy available, or for whom such therapies are considered inappropriate by the Investigator (in Part B, subjects with specific cancer types will be enrolled; Specific criteria will be introduced in a protocol amendment). * Measurable disease according to Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1. * Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 2. Part A Exclusion Criteria: * Radiotherapy (except for palliative reasons), endocrine therapy, chemotherapy, or investigational agent within 28 days, (42 days for nitrosoureas, mitomycin-C) of first dose of NXP800. Subjects can continue to receive bisphosphonates due to metastatic bone disease or GnRH agonists if they have prostate cancer. * Ongoing toxic manifestations of previous treatments \> Grade 2. * Subjects with treated brain metastases are eligible if there is no evidence of progression for at least 28 days after central nervous system (CNS) directed treatment, as ascertained by clinical examination and brain imaging (magnetic resonance imaging \[MRI\] or computed tomography \[CT\] scan) during the Screening period. * Female subjects who can become pregnant (or are already pregnant or lactating). * Male subjects with partners of childbearing potential (unless they agree to take measures not to father children by using a barrier method of contraception (condom plus spermicide) or to sexual abstinence). Part B Inclusion Criteria: * Provide written informed consent. * 18 years old or older. * Subjects with the following ARID1a mutated, ovarian/fallopian tube/primary peritoneal cancer histologies (ARID1a mutation status determined by a DNA-based Next Generation Sequencing test): * Clear cell ovarian carcinoma (≥ 50% clear cell carcinoma with no serous differentiation) * Endometrioid ovarian carcinoma * Subjects must have disease progression within 6 months (182 days) from completion of platinum-based therapy (6 months should be calculated from the date of the last administered dose of platinum therapy to the date of radiographic imaging showing progression) * Measurable disease according to Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1. * Subjects with a BRCA mutation must have received prior treatment with a PARP inhibitor. * Subjects must have received at least 1 but not more than 3 prior systemic lines of anticancer therapy, including at least 1 line of therapy containing bevacizumab. * Adjuvant + neoadjuvant are considered one line of therapy * Maintenance therapy (i.e., bevacizumab, PARP inhibitors) will be considered as part of the preceeding line of therapy and are not counted independently. * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. * Subjects must have a sufficient archival Formalin-Fixed Paraffin-Embedded (FFPE) tissue specimen, or be willing to consent to a fresh tissue biopsy during the study. Part B Exclusion Criteria: * Subjects with disease that did not respond to, or has progressed during or within 4 weeks of the last dose of first-line platinum containing chemotherapy. * Radiotherapy (except for palliative reasons), endocrine therapy, chemotherapy, or investigational agent within 28 days, (42 days for nitrosoureas, mitomycin-C) of first dose of NXP800. * Ongoing toxic manifestations of previous treatments \> Grade 2, with the exception of alopecia. * Subjects with treated brain metastases are eligible if there is no evidence of progression for at least 12 weeks while off corticosteroids after central nervous system (CNS) directed treatment, as ascertained by clinical examination and brain imaging (magnetic resonance imaging \[MRI\] or computed tomography \[CT\] scan) during the Screening period. * Female subjects who can become pregnant (or are already pregnant or lactating).
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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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Addenbrookes Hospital
Cambridge, CB2 0QQ, United Kingdom
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Florida Cancer Specialists Research East
West Palm Beach, Florida, 33401, United States
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Florida Cancer Specialists Research North
St. Petersburg, Florida, 33705, United States
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Florida Cancer Specialists South
Fort Myers, Florida, 33901, United States
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Honor Health
Phoenix, Arizona, 85016, United States
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Mount Sinai Comprehensive Cancer Center
Miami Beach, Florida, 33140, United States
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OU Health Stephenson Cancer Center
Oklahoma City, Oklahoma, 73104, United States
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Oklahoma Cancer Specialists and Research Institute
Tulsa, Oklahoma, 74146, United States
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Oncology Associates of Oregon
Eugene, Oregon, 97401, United States
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Royal Marsden Hospital
Sutton, Sutton Surrey, SM2 5PT, United Kingdom
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Rutgers Cancer Institute of New Jersey
New Brunswick, New Jersey, 08901, United States
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Sidney Kimmel Cancer Center, Asplundh Cancer Pavilion
Willow Grove, Pennsylvania, 19090, United States
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Texas Oncology
Fort Worth, Texas, 76104, United States
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The Beatson West of Scotland Cancer Centre
Glasgow, G12 0YN, United Kingdom
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The Ohio State University Comprehensive Cancer Center
Columbus, Ohio, 43210, United States
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The University of Texas MD Anderson Cancer Center
Houston, Texas, 77030, United States
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UC San Diego Health - Moores Cancer Center
La Jolla, California, 92093, United States
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University of Colorado Cancer Center
Aurora, Colorado, 80045, United States
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University of Iowa
Iowa City, Iowa, 52242, United States
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University of Virginia Health System
Charlottesville, Virginia, 22908, United States
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Women's Cancer Care Associates
Albany, New York, 12208, United States
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Yale Gynecologic Oncology
New Haven, Connecticut, 06511, United States
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- New injectable drug tested for safety in Hard-to-Treat solid tumors
- Can MRI and computer models predict how well cancer drugs reach tumors?