A Phase 1 Clinical Study of NXP800 in Subjects With Advanced Cancers and Expansion in Subjects With Ovarian Cancer

NCT ID: NCT05226507

Last Updated: 2025-08-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE1

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-12-31

Study Completion Date

2025-12-31

Brief Summary

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The purpose of the dose escalation phase is to evaluate the safety profile of escalating doses and dose schedules of NXP800. In the expansion phase the preliminary efficacy in subjects with ARID1a mutated ovarian clear cell and ovarian endometrioid cancers will be estimated.

Detailed Description

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Part A of the study is a dose escalation by cohort study of NXP800 administered to patients with advanced cancers. The study will identify the maximum tolerated dose (MTD) and propose dose and dose schedules for future studies.

In Part B doses selected in Part A are administered to patients with platinum-resistant, ARID1a-mutated ovarian carcinoma.

Conditions

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Advanced Solid Tumor Ovarian Cancer Ovarian Clear Cell Carcinoma Ovarian Clear Cell Tumor Ovarian Clear Cell Adenocarcinoma Ovarian Endometrioid Adenocarcinoma Ovarian Endometrioid Tumor ARID1A Gene Mutation

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Part A dose escalation followed by Part B, expansion in ovarian cancers.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Part A: Dose Escalation

Escalating doses of NXP800 administered orally once or twice daily.

Group Type EXPERIMENTAL

NXP800

Intervention Type DRUG

NXP800 is an anti-neoplastic, oral small molecule.

Part B: Expansion in Ovarian Cancers Cohort 1

Subjects will be treated with NXP800 at 50 mg/day orally.

Group Type EXPERIMENTAL

NXP800

Intervention Type DRUG

NXP800 is an anti-neoplastic, oral small molecule.

Part B: Expansion in Ovarian Cancers Cohort 2

Subjects will be treated with NXP800 at 75 mg/day orally.

Group Type EXPERIMENTAL

NXP800

Intervention Type DRUG

NXP800 is an anti-neoplastic, oral small molecule.

Interventions

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NXP800

NXP800 is an anti-neoplastic, oral small molecule.

Intervention Type DRUG

Eligibility Criteria

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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.


* 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.

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).


* 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).
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Gynecologic Oncology Group Foundation

UNKNOWN

Sponsor Role collaborator

The European Network for Gynaecological Oncological Trial groups (ENGOT)

UNKNOWN

Sponsor Role collaborator

Nuvectis Pharma, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Udai Banerji, Prof

Role: PRINCIPAL_INVESTIGATOR

Institute of Cancer Research, Royal Marsden Foundation Trust

Susana Banerjee, Dr

Role: PRINCIPAL_INVESTIGATOR

Institute of Cancer Research, Royal Marsden NHS Foundation Trust

Locations

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Honor Health

Phoenix, Arizona, United States

Site Status

UC San Diego Health - Moores Cancer Center

La Jolla, California, United States

Site Status

University of Colorado Cancer Center

Aurora, Colorado, United States

Site Status

Yale Gynecologic Oncology

New Haven, Connecticut, United States

Site Status

Florida Cancer Specialists South

Fort Myers, Florida, United States

Site Status

Mount Sinai Comprehensive Cancer Center

Miami Beach, Florida, United States

Site Status

Florida Cancer Specialists Research North

St. Petersburg, Florida, United States

Site Status

Florida Cancer Specialists Research East

West Palm Beach, Florida, United States

Site Status

University of Iowa

Iowa City, Iowa, United States

Site Status

Rutgers Cancer Institute of New Jersey

New Brunswick, New Jersey, United States

Site Status

Women's Cancer Care Associates

Albany, New York, United States

Site Status

The Ohio State University Comprehensive Cancer Center

Columbus, Ohio, United States

Site Status

OU Health Stephenson Cancer Center

Oklahoma City, Oklahoma, United States

Site Status

Oklahoma Cancer Specialists and Research Institute

Tulsa, Oklahoma, United States

Site Status

Oncology Associates of Oregon

Eugene, Oregon, United States

Site Status

Sidney Kimmel Cancer Center, Asplundh Cancer Pavilion

Willow Grove, Pennsylvania, United States

Site Status

Texas Oncology

Fort Worth, Texas, United States

Site Status

The University of Texas MD Anderson Cancer Center

Houston, Texas, United States

Site Status

University of Virginia Health System

Charlottesville, Virginia, United States

Site Status

Royal Marsden Hospital

Sutton, Sutton Surrey, United Kingdom

Site Status

Addenbrookes Hospital

Cambridge, , United Kingdom

Site Status

The Beatson West of Scotland Cancer Centre

Glasgow, , United Kingdom

Site Status

Countries

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United States United Kingdom

Other Identifiers

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ENGOT-GYN5/GTG-UK/NXP800-101

Identifier Type: OTHER

Identifier Source: secondary_id

GOG-3087

Identifier Type: OTHER

Identifier Source: secondary_id

NXP800-101

Identifier Type: -

Identifier Source: org_study_id

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