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Ovarian NeoplasmPhase 2COHORT-ANCT05751629

Study to Evaluate the Safety and Efficacy of TSR-042, Bevacizumab, and Niraparib in Participants With Recurrent Ovarian Cancer

A Phase 2 study testing Dostarlimab, Bevacizumab and Niraparib in people with Ovarian Neoplasm, run by Tesaro, Inc. at 10 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary objective of this sub study is to evaluate the efficacy of the combination of TSR-042, bevacizumab, and niraparib in participants with advanced, relapsed, high-grade ovarian, fallopian tube, or primary peritoneal cancer who have received 1 to 2 prior lines of anticancer therapy, are PARP inhibitor naïve… Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Ovarian Neoplasm
What is being tested?
Dostarlimab, Bevacizumab and Niraparib
Could I receive a placebo?
No, everyone receives an active treatment
How many people
41 participants
Where
10 sitesUnited States
Study dates
15 Nov 2018to 1 Apr 2022
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Participant must be resistant to the most recent platinum-based therapy, defined for the purpose of this protocol as progression within 6 months from completion of a minimum of 4 cycles of platinum-containing therapy. This should be calculated from the date of the last administered dose of platinum therapy to the date of the radiographic imaging showing disease progression. Participant with primary platinum-refractory disease as defined by those who progressed during or within 4 weeks of completion of first platinum-based chemotherapy are not eligible
  • Participant must not have received any prior therapy for ovarian cancer with a PARP inhibitor
  • Participant has had 1 to 2 prior lines of anticancer therapy for ovarian cancer
  • Participant is able to take oral medications.

Who cannot join

  • Participant has known hypersensitivity to TSR-042, bevacizumab, niraparib, their components, or their excipients
  • Participant has a known history of myelodysplastic syndrome or acute myeloid leukemia
  • Participant has active autoimmune disease that has required systemic treatment in the past 2 years (ie, with use of disease-modifying agents, corticosteroids, or immunosuppressive drugs). Replacement therapy (eg, thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is not considered a form of systemic treatment.
  • Participant received prior treatment with an anti- programmed death-1 (PD-1) or anti- programmed death-ligand 1 (PD-L1) agent
  • Participant has received prior treatment with anti-angiogenic therapy with the exception of bevacizumab. (Participant who received prior bevacizumab are eligible only if they did not discontinue bevacizumab due to toxicity, as established by the Investigator.)
  • Participant has bowel obstruction, had bowel obstruction within the past 3 months, or is otherwise judged by the Investigator to be at high risk for bowel obstruction related to the underlying disease. Participant has any history of abdominal fistula, gastrointestinal perforation, or intra-abdominal abscesses. Evidence of recto-sigmoid involvement by pelvic examination or significant bowel involvement on computed tomography scan
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  • Participant has proteinuria as demonstrated by urine protein:creatinine ratio ≥1.0 at screening or urine dipstick for proteinuria ≥2 (Participant discovered to have ≥2 proteinuria on dipstick at baseline should undergo 24-hour urine collection and must demonstrate <2g of protein in 24 hours to be eligible.)
  • Participant is at increased bleeding risk due to concurrent conditions (eg, major injuries or surgery within the past 28 days prior to start of study treatment, history of hemorrhagic stroke, transient ischemic attack, subarachnoid hemorrhage, or clinically significant hemorrhage within the past 3 months)
  • Participant has a history of recent major thromboembolic event defined as follows:
  • Pulmonary embolism diagnosed within 3 months of enrollment
  • Lower extremity deep venous thrombosis diagnosed within 3 months of enrollment (Participant with a history of thromboembolic disease on stable therapeutic anticoagulation for more than 3 months prior to enrollment are eligible for this study.)

Trial locations and contacts

10 sites in 1 country.

10 sites in 1 country

United States10 sites
  • GSK Investigational Site

    Birmingham, Alabama, 35249

  • GSK Investigational Site

    Boston, Massachusetts, 02114

  • GSK Investigational Site

    Boston, Massachusetts, 02215

  • GSK Investigational Site

    Chicago, Illinois, 60637

  • GSK Investigational Site

    Durham, North Carolina, 27710

  • GSK Investigational Site

    Los Angeles, California, 90095

  • GSK Investigational Site

    Oklahoma City, Oklahoma, 73104

  • GSK Investigational Site

    Palo Alto, California, 94304

  • GSK Investigational Site

    Rochester, Minnesota, 55905

  • GSK Investigational Site

    Ventura, California, 93003

Other trials in United States

About this study

Official title: Cohort A: PARP Inhibitor-Naïve Platinum-Resistant Ovarian Cancer Treatment Cohort With TSR-042, Bevacizumab, and Niraparib

The primary objective of this sub study is to evaluate the efficacy of the combination of TSR-042, bevacizumab, and niraparib in participants with advanced, relapsed, high-grade ovarian, fallopian tube, or primary peritoneal cancer who have received 1 to 2 prior lines of anticancer therapy, are PARP inhibitor naïve, and have platinum-resistant but not refractory disease.

This study is a sub study of the master protocol - OPAL (NCT03574779).

Being tested
Dostarlimab, Bevacizumab, Niraparib
Keywords
Poly-ADP-ribose polymerase (PARP) Inhibitor, Ovarian cancer, Niraparib, Bevacizumab, TSR-042, Neoadjuvant treatment
Medical subject headings
Ovarian Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • DostarlimabDrug

    Also called TSR-042

    Dostarlimab was administered.

  • BevacizumabDrug

    Also called Avastin

    Bevacizumab was administered.

  • NiraparibDrug

    Also called ZEJULA

    Niraparib was administered.

Study groups in NCT05751629
Study groupRoleWhat they receive
Cohort A (Dostarlimab + Bevacizumab + Niraparib)ExperimentalNot described
Receives: Drug: Dostarlimab; Drug: Bevacizumab; Drug: Niraparib

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Confirmed Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 by Investigator Assessment

    ORR was defined as percentage of participants with a confirmed investigator-assessed Best Overall Response (BOR) of confirmed complete response (CR) or partial response (PR), evaluated using Response Evaluation Criteria in Solid Tumors (RECIST) version (v) 1.1. PR is defined as at least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum diameters. CR is defined as the disappearance of all target lesions and any pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than (<)10 millimeters (mm).

    Measured: Up to approximately 38 Months

Secondary outcomes (10)
  1. Progression Free Survival (PFS) Per RECIST Version 1.1 by Investigator Assessment

    PFS was defined as the time from the date of the first dose of study treatment to the earliest date of assessment of disease progression or death by any cause in the absence of progression by RECIST v1.1. Disease Progression is defined using RECIST v1.1 as at least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.

    Measured: Up to approximately 38 Months

  2. Overall Survival (OS)

    OS was defined as the time from the date of the first dose of study treatment to the date of death due to any cause. Median and 95% CI are presented.

    Measured: Up to approximately 38 Months

  3. Duration of Response (DOR) Per RECIST Version 1.1 by Investigator Assessment

    DOR was defined as the time from first documentation of response (CR or PR) until the time of first documentation of disease progression by RECIST version 1.1 based on Investigator's assessment or death by any cause. Partial response is defined as at least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum diameters. Complete response is defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than (<)10 millimeters (mm).

    Measured: Up to approximately 38 Months

  4. Disease Control Rate (DCR) Per RECIST Version 1.1 by Investigator Assessment

    DCR was defined as the percentage of participants who have achieved best overall response of CR, PR, or stable disease (SD) per RECIST version 1.1 based on Investigator's assessment. Partial response is defined as at least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum diameters. Complete response is defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than (<)10 millimeters (mm). Stable disease is neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum diameters while on study.

    Measured: Up to approximately 38 Months

  5. Number of Participants With Treatment-emergent Adverse Events (TEAEs)

    An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study intervention, whether or not considered related to the study intervention.

    Measured: Up to approximately 38 Months

  6. Number of Participants With Clinically Significant Changes in Clinical Laboratory Parameters - Chemistry, Coagulation, Hematology and Thyroid

    Blood samples were collected for the analysis of clinical laboratory parameters - chemistry, coagulation, hematology and thyroid.

    Measured: Up to approximately 38 Months

  7. Absolute Values in Urinalysis Parameter - Specific Gravity (Ratio)

    Urine samples were collected at indicated time points for the assessment of specific gravity. Baseline is defined as the most recent non-missing measurement prior to or on the first administration of study drug.

    Measured: Baseline (Day 1) and end of treatment (Up to approximately 32 months)

  8. Change From Baseline in Cancer Antigen 125 (CA-125) at End of Treatment

    Blood samples were collected for the analysis of CA-125. Baseline is defined as the most recent non-missing measurement prior to or on the first administration of study drug.

    Measured: Baseline (Day 1) and end of treatment (Up to approximately 32 months)

  9. Change From Baseline in Vital Signs (Weight) at End of Treatment

    Weight was measured in ordinary indoor clothing (without shoes) and was recorded at specified study visit. Baseline is defined as the most recent non-missing measurement prior to or on the first administration of study drug.

    Measured: Baseline (Day 1) and end of treatment (Up to approximately 32 months)

  10. Number of Participants With Eastern Cooperative Oncology Group (ECOG) Performance Status at Baseline and End of Treatment

    Performance status assessments were based on 5-grade ECOG scale (from 0 to 4), where 0=fully active, able to carry on all pre-disease performance without restriction; 1=restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature (e.g., light house work, office work); 2=ambulatory and capable of all self-care but unable to carry out any work activities, up and about more than 50% of waking hours; 3=capable of only limited self-care, confined to bed or chair more than 50% of waking hours; 4=completely disabled, cannot carry on any self-care, totally confined to bed or chair. Baseline is defined as the most recent non-missing measurement prior to or on the first administration of study drug.

    Measured: Baseline (Day 1) and end of treatment (Up to approximately 32 months)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Mar 2023
  2. Study start15 Nov 2018
  3. Primary completion1 Apr 2022
  4. Study completion1 Apr 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
41 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05751629
Sponsor's protocol ID
213357-COHORT-A
Acronym
COHORT-A
Status last verified
Feb 2023
First submitted
20 Feb 2023
Last updated
21 Apr 2023
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Qualified researchers may request access to anonymized individual patient-level data (IPD) and related study documents of the eligible studies via the Data Sharing Portal. Details on GSK's data sharing criteria can be found at: https://www.gsk.com/en-gb/innovation/trials/data-transparency/

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Dostarlimab, Bevacizumab and Niraparib in people with Ovarian Neoplasm, run by Tesaro, Inc. at 10 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 21 Apr 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 10 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 21 Apr 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Confirmed Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 by Investigator Assessment (time frame: Up to approximately 38 Months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Apr 2023.

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