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Breast CancerEarly Phase 1NCT03911453

Window of Opportunity Trial, PARP Inhibitor Rucaparib Affect on PD-L1 Expression in Triple Negative Breast Tumors

A Early Phase 1 study testing Rucaparib in people with Breast Cancer, run by University of Arizona at 1 site 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

This is a single arm window of opportunity trial conducted in patients with early stage triple negative breast tumors to evaluate if treatment with a Poly(ADP-ribose) polymerase (PARP) inhibitor will increase expression of programmed cell death-1 with ligand (PD-L1) in triple negative breast tumors. Read more about this study

Who is it for?
Ages 21 years and older
Conditions the study is for
Breast Cancer
What is being tested?
Rucaparib
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteUnited States
Study dates
19 Apr 2019to 16 Jul 2021
Phase
Early Phase 1
Are there results?
None posted in the registry

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 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Have histologically documented triple negative breast cancer (TNBC) (defined as ER expression ≤10% by IHC, progesterone receptor (PR) expression≤10% by IHC and HER2 0 or 1+ by IHC or Fluorescence in situ hybridization (FISH) ratio <2 or human epidermal growth factor receptor 2 (HER2) gene copy number of <6)
  • Early stage breast cancer (stage I-III) and not be candidate for neoadjuvant chemotherapy
  • Be informed of the investigational nature of the study and all pertinent aspects of the trial
  • Have Eastern Cooperative Oncology Group (ECOG) performance status of 0-2
  • Have the ability to understand and the willingness to sign a written informed consent document in accordance with institutional and federal guidelines
  • Be ≥ 21 years of age
Show all 9Show fewer
  • Have serum creatinine < 1.5 x institutional upper limit of normal (IULN) or a calculated creatinine clearance ≥ 30ml/min (calculated by Cockcroft Gault equation), bilirubin ≤ 2.0, and an serum glutamic oxaloacetic transaminase (SGOT)/s erum glutamic pyruvic transaminase (SGPT)/alkaline phosphatase ≤ 2.0 x IULN
  • Have adequate bone marrow function (ANC >1000, Platelets >100,000/ml, Hemoglobin >10gm/dL)
  • Women of childbearing potential or male patients of reproductive potential with female partners of childbearing potential must not consider getting pregnant and must avoid pregnancy during the study and for at least 6 months after the last dose of rucaparib. Female and male patients of reproductive potential must practice highly effective methods of contraception with their partners, if of reproductive potential, during treatment and for 6 months following last dose of rucaparib

Who cannot join

  • Ongoing or prior treatment with a PARPi for breast cancer or other malignancies
  • Receiving concurrent anti-neoplastic therapy for their breast cancer or another malignancy
  • Known documented or suspected hypersensitivity to the components of the study drug or analogs.
  • Pre-existing gastrointestinal disorders or defects (like duodenal stent etc) that would, in the opinion of the investigator, interfere with absorption of rucaparib

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Arizona Cancer Center

    Tucson, Arizona, 85724

Other trials in United States

About this study

Official title: Window of Opportunity Trial to Evaluate Change in PD-L1 Expression in Triple Negative Breast Tumors in Response to the PARP Inhibitor Rucaparib

This is a single arm window of opportunity trial conducted in patients with early stage triple negative breast tumors to evaluate if treatment with a Poly(ADP-ribose) polymerase (PARP) inhibitor will increase expression of programmed cell death-1 with ligand (PD-L1) in triple negative breast tumors.

Read the detailed description

This is a single arm window of opportunity trial conducted in patients with early stage triple negative breast tumors. Patients who are planning to undergo surgery as part of their initial treatment will be eligible for this study. They will be treated with single agent rucaparib for 3 weeks and then proceed to surgery. Core-biopsies obtained at the time of diagnosis and tumor from the surgical resection will be assessed for change in expression of PD-L1 by Immunohistochemical assay (IHC).

Conditions
Breast Cancer
Being tested
Rucaparib
Keywords
Breast Cancer, Triple Negative, Breast Tumors, PD-L1, PARP, PARPi, Rucaparib
Medical subject headings
Breast Neoplasms

What participants receive

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

  • RucaparibDrug

    Patients will be treated with single agent rucaparib for 3wks and then proceed to surgery. Core-biopsies (at the time of diagnosis) and tumor from the surgical resection will be assessed for change in expression of PD-L1 by Immunohistochemical assay (IHC).

Study groups in NCT03911453
Study groupRoleWhat they receive
Treatment (rucaparib)ExperimentalPatients will be treated with single agent rucaparib for 3wks and then proceed to surgery. Core-biopsies (at the time of diagnosis) and tumor from the surgical resection will be assessed for change in expression of programmed cell death-1 with ligand (PD-L1) by immunohistochemistry (IHC) . Starting Dose 600 mg twice daily Dose Level -1 500 mg twice daily Dose Level -2 400 mg twice daily Dose Level -3 300 mg twice daily
Receives: Drug: Rucaparib

What is being measured

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

  1. Measurement of expression of PD-L1 by IHC via core biopsy.

    To evaluate change in expression of programmed cell death-1 with ligand (PD-L1) by Immunohistochemistry (IHC) of tissue sample via core biopsy after treatment with single agent PARPi (rucaparib).

    Measured: Six months

Secondary outcomes (5)
  1. Measure change in expression of Ki67 by IHC after treatment with PARPi.

    Measure change in expression of Ki67 by immunohistochemistry of tissue sample via core biopsy after treatment with single agent Poly(ADP-ribose) polymerase inhibitor (PARPi) (rucaparib).

    Measured: Six months

  2. Measure and quantify change in number of tumor-infiltrating lymphocytes.

    Measure and quantify change in number of tumor-infiltrating lymphocytes via blood testing.

    Measured: Six months

  3. Measure levels of tumor PARylation in pre- and post-PARPi therapy by IHC.

    Measure levels of tumor PARylation (the addition of poly-ADP-ribose polymers) in pre- and post-PARPi therapy by immunohistochemistry of tissue sample via core biopsy.

    Measured: Six months

  4. Measure change in expression of programmed cell death-1 with ligand (PD-L1) pre- and post-PARPi therapy in circulating tumor cells (CTCs).

    Measure change in expression of programmed cell death-1 with ligand (PD-L1) pre- and post-PARPi therapy in circulating tumor cells (CTCs) via blood/plasma collection.

    Measured: Six months

  5. Measure cfDNA mutational expression for homologous recombination deficiency (HRD) and correlate with PD-L1 expression at baseline and change overtime.

    Measure circulating free DNA (cfDNA) mutational expression for homologous recombination deficiency (HRD) and correlate with PD-L1 expression at baseline and change overtime via blood/plasma collection.

    Measured: Six months

Timeline

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

  1. First posted11 Apr 2019
  2. Study start19 Apr 2019
  3. Primary completion16 Jul 2021
  4. Study completion16 Jul 2021

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
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03911453
Sponsor's protocol ID
30388
Other IDs
1903397220
Status last verified
Oct 2024
First submitted
9 Apr 2019
Last updated
3 Oct 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Rucaparib in people with Breast Cancer, run by University of Arizona at 1 site 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 9 inclusion and 4 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 3 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Measurement of expression of PD-L1 by IHC via core biopsy. (time frame: Six 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 3 Oct 2024.

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