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A Trial of Niraparib in BAP1 and Other DNA Damage Response (DDR) Deficient Neoplasms (UF-STO-ETI-001)

A Phase II Trial of the PARP Inhibitor, Niraparib, in BAP1 and Other DNA Damage Response (DDR) Pathway Deficient Neoplasms (UF-STO-ETI-001)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03207347
Enrollment
37
Registered
2017-07-02
Start date
2018-08-13
Completion date
2022-08-30
Last updated
2023-09-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cholangiocarcinoma, Mesothelioma, Renal Cell Carcinoma, Uveal Melanoma

Keywords

BAP1, niraparib, DNA repair, PARP inhibitor, homologous repair deficiency, renal cell carcinoma, cholangiocarcinoma, mesothelioma, uveal melanoma

Brief summary

This open-label, non-randomized study will investigate the use of niraparib in patients with tumors known to have mutations in BAP1 and other select DNA damage response pathway genes.

Detailed description

BAP1 is an ubiquitin ligase that is critical in helping to regulate the cell cycle, cellular differentiation, and cell death. This protein is also intimately involved with DNA double-strand break repair. Germline mutations in the BAP1 gene are associated with a hereditary cancer syndrome that increases the risk of uveal melanoma, mesothelioma and renal cell carcinoma. PARP is another protein that is crucial in DNA repair and enables continued cell replication and survival. It is hypothesized that PARP inhibition with niraparib will result in significant cytoreduction in patient tumors with mutations in BAP1 and other components of the DNA damage response pathway through synthetic lethality. Synthetic lethality is the inhibition of a gene that a cell relies on to compensate for the loss of another gene, resulting in the cell's demise.

Interventions

DRUGNiraparib

Patients will take 300 mg of niraparib orally once daily each day of a 28 day cycle.

Sponsors

GlaxoSmithKline
CollaboratorINDUSTRY
University of Florida
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Patients in both cohorts will receive niraparib.

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Age ≥18 years * Histologically confirmed clinical diagnosis of incurable cancer * Confirmed diagnosis of uveal melanoma, mesothelioma, renal cell carcinoma (clear cell subtype), or cholangiocarcinoma (Cohort A only) * Known DNA damage repair mutation including any one of the following: ARID1A, ATM, ATR, BACH1 (BRIP1), BAP1, BARD1, BLM, CHEK1, CHEK2, CDK2, CDK4, ERCC, FAM175A, FEN1, IDH1, IDH2, MRE11A, NBN (NBS1), PALB2, POLD1, PRKDC (DNA-PK) PTEN, RAD50, RAD51, RAD52, RAD54, RPA1, SLX4, WRN, or XRCC. Only CLIA certified next generation sequencing (NGS) assays are acceptable. Variants of unknown significance (VUS) will be allowed to enroll on study. (Cohort B only) * Prior treatment with standard systemic therapy (must have exhausted or declined all known and currently approved effective life prolonging therapies) * Must have formalin-fixed paraffin embedded (FFPE) tissue available for research purposes. Tissue must have been obtained within the last 3 years from a core or excisional biopsy. * Measurable disease by RECIST (v 1.1) criteria * Adequate organ function * ECOG Performance Status of 0-1 * Life expectancy ≥ 12 weeks * Women of childbearing potential must have a negative serum or urine pregnancy test within 7 days prior to the first dose AND be using an adequate method of contraception to avoid pregnancy throughout the study and for at least 180 days after the last dose of study drug to minimize the risk of pregnancy. * Males with female partners of child-bearing potential must agree to use physician-approved contraceptive methods (e.g., abstinence, condoms, vasectomy) throughout the study and should avoid conceiving children for 180 days following the last dose of study drug. In addition, men must not donate sperm during niraparib therapy and for 180 days after receiving the last dose of niraparib. * Subjects must agree to not donate blood during the study or for 90 days after the last dose of study treatment. * Subjects receiving oral corticosteroids may continue as long as their dose is stable for least 4 weeks prior to initiating protocol therapy. * If a new biopsy is needed for diagnostic reasons, the biopsy must be performed from a tumor site that is not the only site of measurable disease.

Exclusion criteria

* Prior exposure to PARP inhibitors * Subject has received or is planning to receive live vaccines within 30 days prior to the first dose of oral treatment and while participating in the trial * Known BRCA1 or BRCA2 mutation * Pathologic diagnosis of prostate cancer as the cancer to be treated in cohort B * Simultaneous enrollment in any other interventional clinical trial * Major surgery ≤ 3 weeks of study enrollment (Subject must have recovered from any effects of any major sugery.) * Investigational therapy ≤ 4 weeks of first day of dosing of study drug * Radiotherapy to \> 20% of the bone marrow within 4 weeks of the first dose of study drug * Known hypersensitivity to the components of niraparib or the excipients * Platelet or red blood cell transfusion ≤ 4 weeks of first dose of study drug * Colony-stimulating factors within 4 weeks prior to starting protocol therapy * More than one active malignancy at the time of enrollment (Subjects with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen \[as determined by the treatment physician and approved by the PI\] may be included). * Known, active symptomatic brain or leptomeningeal metastases * Subject has had any known Grade 3 or 4 anemia, neutropenia or thrombocytopenia due to prior chemotherapy that persisted \> 4 weeks and was related to the most recent treatment. * Known history of myelodysplastic syndrome or acute myeloid leukemia * Females or males of childbearing potential who are unwilling or unable to use an acceptable method of birth control to avoid pregnancy for the entire study period and for at least 180 days after the last dose of study drug. * Females who are pregnant or breastfeeding * History of any other disease, metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of protocol therapy or that might affect the interpretation of the results of the study or that puts the subject at high risk for treatment complications, in the opinion of the treating physician or study PI. * Prisoners or subjects who are involuntarily incarcerated. * Subjects who are compulsorily detained for treatment of either a psychiatric or physical illness. * Subjects demonstrating an inability to comply with the study and/or follow-up procedures

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR)1 yearDetermine the objective response rate (ORR), which is defined as the percentage of subjects achieving a best overall response of partial or complete response (according to RECIST v1.1 criteria) from the start of the treatment until disease progression/recurrence or 30 days after the end of treatment, whichever occurs first. Per RECIST v1.1 criteria, a partial response is defined as a 30% or more decrease in the sum of the largest diameters of the target lesions. Per RECIST v1.1 criteria, a complete response is defined as the disappearance of target lesions (lymph nodes identified as lesions must have reduction in short axis to \<10 mm).

Secondary

MeasureTime frameDescription
Progression-Free Survival8 monthsDetermine the median progression-free survival. Progression-free survival is defined as the duration of time from study entry to time of progression or death or the date of last contact, whichever occurs first. Progression is defined by RECIST v1.1 criteria and is defined as an increase of at least 20% in the sum of the largest diameters of target lesions and/or the appearance of new lesions.
Progression-Free Survival Rate at 3 Months3 monthsDetermine the progression-free survival rate at 3 months after study entry in each cohort. This is the percentage of subjects that both have not had disease progression and are alive 3 months after study entry. Disease progression is defined by RECIST v1.1 criteria and is defined as an increase of at least 20% in the sum of the largest diameters of target lesions and/or the appearance of new lesions.
Progression-Free Survival Rate at 6 Months6 monthsDetermine the progression-free survival rate at 6 months after study entry in each cohort. This is the percentage of subjects that both have not had disease progression and are alive 6 months after study entry. Progression is defined by RECIST v1.1 criteria and is defined as an increase of at least 20% in the sum of the largest diameters of target lesions and/or the appearance of new lesions.
Overall Survival10 monthsEstimate the median overall survival. Overall survival is defined as the duration of time from date of study entry until date of death or date of last contact.

Countries

United States

Participant flow

Participants by arm

ArmCount
Cohort A
This cohort will enroll patients with mesothelioma, uveal melanoma, renal cell carcinoma (clear cell type), and cholangiocarcinoma. Niraparib: Patients will take 300 mg of niraparib orally once daily each day of a 28 day cycle.
23
Cohort B (Closed to Enrollment)
This cohort will enroll patients whose tumors have a known DNA damage response mutation in any of the following genes: ARID1A, ATM, ATR, BACH1 (BRIP1), BAP1, BARD1, BLM, CHEK1, CHEK2, CDK2, CDK4, ERCC, FAM175A, FEN1, IDH1, IDH2, MRE11A, NBN (NBS1), PALB2, POLD1, PRKDC (DNA-PK) PTEN, RAD50, RAD51, RAD52, RAD54, RPA1, SLX4, WRN, or XRCC. This cohort is open to patients with any type of malignancy (except prostate). Niraparib: Patients will take 300 mg of niraparib orally once daily each day of a 28 day cycle.
14
Total37

Baseline characteristics

CharacteristicCohort ACohort B (Closed to Enrollment)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
16 Participants6 Participants22 Participants
Age, Categorical
Between 18 and 65 years
7 Participants8 Participants15 Participants
Age, Continuous65.57 years61.43 years64.00 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
23 Participants14 Participants37 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
1 Participants1 Participants2 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
21 Participants13 Participants34 Participants
Region of Enrollment
United States
23 participants14 participants37 participants
Sex: Female, Male
Female
10 Participants13 Participants23 Participants
Sex: Female, Male
Male
13 Participants1 Participants14 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
23 / 2314 / 14
other
Total, other adverse events
23 / 2314 / 14
serious
Total, serious adverse events
8 / 237 / 14

Outcome results

Primary

Objective Response Rate (ORR)

Determine the objective response rate (ORR), which is defined as the percentage of subjects achieving a best overall response of partial or complete response (according to RECIST v1.1 criteria) from the start of the treatment until disease progression/recurrence or 30 days after the end of treatment, whichever occurs first. Per RECIST v1.1 criteria, a partial response is defined as a 30% or more decrease in the sum of the largest diameters of the target lesions. Per RECIST v1.1 criteria, a complete response is defined as the disappearance of target lesions (lymph nodes identified as lesions must have reduction in short axis to \<10 mm).

Time frame: 1 year

Population: The analysis population for both cohorts only includes those subjects with at least one RECIST response assessment at the end of treatment. 6 subjects (5 subjects in Cohort A and 1 subject in Cohort B) did not have at lease one RECIST response assessment at the end of treatment and are not included in the analysis population.

ArmMeasureValue (NUMBER)
Cohort AObjective Response Rate (ORR)5.6 percentage of subjects
Cohort BObjective Response Rate (ORR)0 percentage of subjects
Secondary

Overall Survival

Estimate the median overall survival. Overall survival is defined as the duration of time from date of study entry until date of death or date of last contact.

Time frame: 10 months

ArmMeasureValue (MEDIAN)
Cohort AOverall Survival9.1 months
Cohort BOverall Survival7.2 months
Secondary

Progression-Free Survival

Determine the median progression-free survival. Progression-free survival is defined as the duration of time from study entry to time of progression or death or the date of last contact, whichever occurs first. Progression is defined by RECIST v1.1 criteria and is defined as an increase of at least 20% in the sum of the largest diameters of target lesions and/or the appearance of new lesions.

Time frame: 8 months

ArmMeasureValue (MEDIAN)
Cohort AProgression-Free Survival2.1 months
Cohort BProgression-Free Survival7.2 months
Secondary

Progression-Free Survival Rate at 3 Months

Determine the progression-free survival rate at 3 months after study entry in each cohort. This is the percentage of subjects that both have not had disease progression and are alive 3 months after study entry. Disease progression is defined by RECIST v1.1 criteria and is defined as an increase of at least 20% in the sum of the largest diameters of target lesions and/or the appearance of new lesions.

Time frame: 3 months

ArmMeasureValue (NUMBER)
Cohort AProgression-Free Survival Rate at 3 Months43 percentage of subjects
Cohort BProgression-Free Survival Rate at 3 Months64 percentage of subjects
Secondary

Progression-Free Survival Rate at 6 Months

Determine the progression-free survival rate at 6 months after study entry in each cohort. This is the percentage of subjects that both have not had disease progression and are alive 6 months after study entry. Progression is defined by RECIST v1.1 criteria and is defined as an increase of at least 20% in the sum of the largest diameters of target lesions and/or the appearance of new lesions.

Time frame: 6 months

ArmMeasureValue (NUMBER)
Cohort AProgression-Free Survival Rate at 6 Months39 percentage of subjects
Cohort BProgression-Free Survival Rate at 6 Months57 percentage of subjects

Source: ClinicalTrials.gov · Data processed: Feb 19, 2026