Trial Outcomes & Findings for Bevacizumab and/or Niraparib in Patients With Recurrent Endometrial and/or Ovarian Cancer With ARID1A Mutation (NCT NCT05523440)

NCT ID: NCT05523440

Last Updated: 2026-06-03

Results Overview

To estimate the proportion of patients with objective tumor response (complete or partial), to the combination treatment of niraparib and bevacizumab and to monotherapy niraparib.

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

9 participants

Primary outcome timeframe

16 months, until early study termination

Results posted on

2026-06-03

Participant Flow

Nine subjects were accrued on the study at the University of Oklahoma and at the University of Virginia Arlington.

Of the 9 subjects accrued, there were 2 screenfails and 7 subjects who were eligible to start treatment. Of the 7 subjects, 4 were randomized to Arm 1 with niraparib only, and 3 were randomized to Arm 2 with niraparib and bevacizumab.

Participant milestones

Participant milestones
Measure
Arm 1: Niraparib
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Niraparib: Niraparib oral capsule.
Arm 2: Niraparib and Bevacizumab
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Bevacizumab (15 mg/kg, IV on day 1 of each cycle). Bevacizumab: Bevacizumab infusion. Niraparib: Niraparib oral capsule.
Overall Study
STARTED
4
3
Overall Study
COMPLETED
0
0
Overall Study
NOT COMPLETED
4
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Arm 1: Niraparib
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Niraparib: Niraparib oral capsule.
Arm 2: Niraparib and Bevacizumab
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Bevacizumab (15 mg/kg, IV on day 1 of each cycle). Bevacizumab: Bevacizumab infusion. Niraparib: Niraparib oral capsule.
Overall Study
Six subjects went off study due to disease progression and 1 was taken off due to study termination
4
3

Baseline Characteristics

Bevacizumab and/or Niraparib in Patients With Recurrent Endometrial and/or Ovarian Cancer With ARID1A Mutation

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Arm 1: Niraparib
n=4 Participants
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Niraparib: Niraparib oral capsule.
Arm 2: Niraparib and Bevacizumab
n=3 Participants
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Bevacizumab (15 mg/kg, IV on day 1 of each cycle). Bevacizumab: Bevacizumab infusion. Niraparib: Niraparib oral capsule.
Total
n=7 Participants
Total of all reporting groups
Age, Continuous
64.0 Years
STANDARD_DEVIATION 8.4 • n=20 Participants
67.3 Years
STANDARD_DEVIATION 6.8 • n=20 Participants
65.4 Years
STANDARD_DEVIATION 7.3 • n=40 Participants
Sex: Female, Male
Female
4 Participants
n=20 Participants
3 Participants
n=20 Participants
7 Participants
n=40 Participants
Sex: Female, Male
Male
0 Participants
n=20 Participants
0 Participants
n=20 Participants
0 Participants
n=40 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=20 Participants
0 Participants
n=20 Participants
0 Participants
n=40 Participants
Race (NIH/OMB)
Asian
0 Participants
n=20 Participants
0 Participants
n=20 Participants
0 Participants
n=40 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=20 Participants
0 Participants
n=20 Participants
0 Participants
n=40 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=20 Participants
0 Participants
n=20 Participants
0 Participants
n=40 Participants
Race (NIH/OMB)
White
4 Participants
n=20 Participants
3 Participants
n=20 Participants
7 Participants
n=40 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=20 Participants
0 Participants
n=20 Participants
0 Participants
n=40 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=20 Participants
0 Participants
n=20 Participants
0 Participants
n=40 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=20 Participants
0 Participants
n=20 Participants
0 Participants
n=40 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants
n=20 Participants
3 Participants
n=20 Participants
7 Participants
n=40 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=20 Participants
0 Participants
n=20 Participants
0 Participants
n=40 Participants
Prior Cancer Diagnosis
0 Participants
n=20 Participants
1 Participants
n=20 Participants
1 Participants
n=40 Participants

PRIMARY outcome

Timeframe: 16 months, until early study termination

To estimate the proportion of patients with objective tumor response (complete or partial), to the combination treatment of niraparib and bevacizumab and to monotherapy niraparib.

Outcome measures

Outcome measures
Measure
Arm 1: Niraparib
n=4 Participants
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily.
Arm 2: Niraparib and Bevacizumab
n=3 Participants
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Bevacizumab (15 mg/kg, IV on day 1 of each cycle).
Proportion of Patients With Objective Response Rate With Recurrent Endometrial Cancer With Mutated ARID1A
0 Proportion of patients
0 Proportion of patients

PRIMARY outcome

Timeframe: 16 months, until early study termination

To estimate the proportion of patients with objective tumor response (complete or partial), to the combination treatment of niraparib and bevacizumab and to monotherapy niraparib.

Outcome measures

Outcome measures
Measure
Arm 1: Niraparib
n=4 Participants
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily.
Arm 2: Niraparib and Bevacizumab
n=3 Participants
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Bevacizumab (15 mg/kg, IV on day 1 of each cycle).
Proportion of Patients With Objective Response Rate With Recurrent Ovarian Cancer With Mutated ARID1A
0 Proportion of patients
0 Proportion of patients

SECONDARY outcome

Timeframe: 16 months, until early study termination

To estimate the proportion of subjects with recurrent endometrial cancer or ovarian cancer with mutated ARID1A, who survive progression-free for at least 6 months, treated with each regimen.

Outcome measures

Outcome measures
Measure
Arm 1: Niraparib
n=4 Participants
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily.
Arm 2: Niraparib and Bevacizumab
n=3 Participants
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Bevacizumab (15 mg/kg, IV on day 1 of each cycle).
6 Month Duration of Response
0 Proportion
No responses documented. insufficient number of participants with events
0 Proportion
No responses documented. insufficient number of participants with events

SECONDARY outcome

Timeframe: 16 months, until early study termination

To estimate the progression-free survival (PFS) of subjects with recurrent endometrial cancer or ovarian cancer with mutated ARID1A treated with each regimen.

Outcome measures

Outcome measures
Measure
Arm 1: Niraparib
n=4 Participants
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily.
Arm 2: Niraparib and Bevacizumab
n=3 Participants
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Bevacizumab (15 mg/kg, IV on day 1 of each cycle).
Progression Free Survival
2.87 Months
Interval 1.62 to
The lower 95% CI never crosses the 50% threshold. insufficient number of participants with events. insufficient number of participants with events
NA Months
Never crosses the 50% threshold for median calculation (only one patient experienced an event). insufficient number of participants with events. insufficient number of participants with events

Adverse Events

Arm 1: Niraparib

Serious events: 1 serious events
Other events: 4 other events
Deaths: 1 deaths

Arm 2: Niraparib and Bevacizumab

Serious events: 3 serious events
Other events: 3 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
Arm 1: Niraparib
n=4 participants at risk
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily.
Arm 2: Niraparib and Bevacizumab
n=3 participants at risk
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Bevacizumab (15 mg/kg, IV on day 1 of each cycle).
Cardiac disorders
Restrictive Cardiomyopathy
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Cardiac disorders
Heart Failure
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Cardiac disorders
Myocarditis
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Gastrointestinal disorders
Small Intestinal Obstruction
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Gastrointestinal disorders
abdominal pain
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Musculoskeletal and connective tissue disorders
Flank Pain R
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Infections and infestations
kidney infection
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Investigations
Platelet Count Decreased
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Metabolism and nutrition disorders
Dehydration
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Investigations
thrombocytopenia
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months

Other adverse events

Other adverse events
Measure
Arm 1: Niraparib
n=4 participants at risk
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily.
Arm 2: Niraparib and Bevacizumab
n=3 participants at risk
Niraparib (200mg or 300 mg based on body weight and blood platelet count), oral, once daily. Bevacizumab (15 mg/kg, IV on day 1 of each cycle).
Metabolism and nutrition disorders
HYPONATREMIA
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Metabolism and nutrition disorders
HYPOPOSPHATEMIA
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Metabolism and nutrition disorders
WEIGHT LOSS
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Musculoskeletal and connective tissue disorders
ARTHRITIS WORSENING-KNEES
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Musculoskeletal and connective tissue disorders
BACK PAIN
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Musculoskeletal and connective tissue disorders
PAIN; RIGHT KNEE
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
TUMOR HEMORRHAGE, INT
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Nervous system disorders
HEADACHE (LEFT SIDED), INT
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Nervous system disorders
HEADACHE, INT
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Nervous system disorders
HEADACHES
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Nervous system disorders
MEMORY IMPAIRMENT
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Nervous system disorders
SYNCOPE
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Nervous system disorders
TREMOR, INT
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Nervous system disorders
TREMORS
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Psychiatric disorders
CONFUSION
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Psychiatric disorders
DEPRESSION
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
HEMATURIA
0.00%
0/4 • 1 year and 7 months
66.7%
2/3 • 1 year and 7 months
Renal and urinary disorders
PROTEINURIA
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
RENAL CALCULI
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
RIGHT NEPHROSTOMY TUBE EXCHANGE
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
RIGHT NEPHROSTOMY TUBE PLACEMENT AND STENT REMOVAL
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
URETHRAL STENT PLACEMENT
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
URETHRAL STENT PLACEMENT, RIGHT
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
URINARY FREQUENCY
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
URINARY TRACT INFECTION
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
URINARY TRACT OBSTRUCTION
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
URINARY URGENCY
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Respiratory, thoracic and mediastinal disorders
COUGH
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Respiratory, thoracic and mediastinal disorders
DYSPNEA
0.00%
0/4 • 1 year and 7 months
66.7%
2/3 • 1 year and 7 months
Respiratory, thoracic and mediastinal disorders
HOARSENESS
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Respiratory, thoracic and mediastinal disorders
NASAL CONGESTION
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Skin and subcutaneous tissue disorders
CONTACT DERMATITIS
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Surgical and medical procedures
ESOPHAGOGASTRODUODENOSCOPY
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Surgical and medical procedures
LEFT STENT PLACEMENT
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Surgical and medical procedures
RIGHT STENT REPLACEMENT
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Vascular disorders
HYPOTENSION, INT
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Vascular disorders
MURAL LV THROMBUS
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
LEFT PERCUTANEOUS NEPHROSTOMY TUBE PLACEMENT
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months
Metabolism and nutrition disorders
HYPERNATREMIA
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Renal and urinary disorders
URINARY RETENTION
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months
Respiratory, thoracic and mediastinal disorders
PRODUCTIVE COUGH
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months
Blood and lymphatic system disorders
PLATELET COUNT DECREASED
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Cardiac disorders
SINUS TACHYCARDIA
0.00%
0/4 • 1 year and 7 months
66.7%
2/3 • 1 year and 7 months
Gastrointestinal disorders
ABDOMINAL PAIN
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Gastrointestinal disorders
DIARRHEA
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Gastrointestinal disorders
DRY MOUTH
0.00%
0/4 • 1 year and 7 months
66.7%
2/3 • 1 year and 7 months
Gastrointestinal disorders
ESOPHAGEAL STENOSIS
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Gastrointestinal disorders
ORAL DYSESTHESIA
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
General disorders
PAIN WORSENING
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Immune system disorders
NEUTROPHIL COUNT DECREASED
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Infections and infestations
KIDNEY INFECTION
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Infections and infestations
LUNG INFECTION
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Infections and infestations
URINARY TRACT INFECTION
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Investigations
CARDIAC TROPONIN T INCREASED
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Investigations
NEUTROPHIL COUNT DECREASED
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Investigations
PLATELET COUNT DECREASED
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Investigations
WEIGHT LOSS
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Investigations
WHITE BLOOD CELL DECREASED
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Metabolism and nutrition disorders
DEHYDRATION
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Metabolism and nutrition disorders
HYPERCALCEMIA
0.00%
0/4 • 1 year and 7 months
33.3%
1/3 • 1 year and 7 months
Blood and lymphatic system disorders
ANEMIA
25.0%
1/4 • 1 year and 7 months
66.7%
2/3 • 1 year and 7 months
Blood and lymphatic system disorders
NEUTROPENIA
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months
Blood and lymphatic system disorders
THROMBOCYTOPENIA
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months
Gastrointestinal disorders
CONSTIPATION
50.0%
2/4 • 1 year and 7 months
100.0%
3/3 • 1 year and 7 months
Gastrointestinal disorders
MUCOSITIS ORAL, INT
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months
Gastrointestinal disorders
NAUSEA
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months
Gastrointestinal disorders
VOMITING
25.0%
1/4 • 1 year and 7 months
66.7%
2/3 • 1 year and 7 months
General disorders
FATIGUE
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months
General disorders
FLU LIKE SYMPTOMS
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months
Investigations
THROMBOCYTOPENIA
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months
Metabolism and nutrition disorders
ANOREXIA
25.0%
1/4 • 1 year and 7 months
66.7%
2/3 • 1 year and 7 months
Musculoskeletal and connective tissue disorders
MYALGIA
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months
Nervous system disorders
PARESTHESIA
25.0%
1/4 • 1 year and 7 months
0.00%
0/3 • 1 year and 7 months

Additional Information

Lauren Dockery

University of Oklahoma Health Sciences Center

Phone: 4052718777

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place