Trilaciclib in Patients Receiving Sacituzumab Govitecan-hziy for Triple Negative Breast Cancer

  • End date
    Jul 19, 2024
  • participants needed
  • sponsor
    G1 Therapeutics, Inc.
Updated on 19 June 2022
triple negative breast cancer


This is a Phase 2, multicenter, open-label, single arm study evaluating the safety and efficacy of trilaciclib administered prior to sacituzumab govitecan-hziy in patients with unresectable, locally advanced or metastatic triple-negative breast cancer (TNBC) who received at least 2 prior treatments, at least 1 in the metastatic setting.


The study will include 3 study phases: Screening Phase, Treatment Phase, and Survival Follow-up Phase. The Treatment Phase begins on the day of the first dose of study treatment and completes at the Safety Follow-up Visit. Trilaciclib and sacituzumab govitecan-hziy will be administered intravenously (IV) in 21-day cycles. Study drug administration will continue until progressive disease per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 or clinical progression as determined by the Investigator, unacceptable toxicity, withdrawal of consent, Investigator decision, or the end of the study, whichever occurs first. The first Survival Follow-up assessment should occur approximately 3 months after the Safety Follow-Up Visit and will continue every 3 months until the end of the study (or death).

Condition Triple Negative Breast Cancer
Treatment Trilaciclib, Sacituzumab Govitecan-hziy
Clinical Study IdentifierNCT05113966
SponsorG1 Therapeutics, Inc.
Last Modified on19 June 2022


Yes No Not Sure

Inclusion Criteria

Adult ( ≥18 years of age), fFemale or male patient with measurable (per RECIST v1.1), unresectable locally advanced or metastatic TNBC
Documentation of histologically or cytologically confirmed ER-negative, PR-negative, and HER2-negative tumor per the American Society of Clinical Oncology (ASCO) and the College of American Pathologists (ASCO/CAP) criteria
Patient must have had documented disease progression during or after 2 lines of systemic chemotherapy treatment for unresectable, locally advanced or metastatic breast cancer (these regimens will qualify regardless of TNBC status at the time they were administered)
One prior line of chemotherapy treatment could be in the neoadjuvant or adjuvant setting if progression occurred within 12 months of completion of chemotherapy
Patients must have prior taxane treatment in either the neoadjuvant, adjuvant, or advanced/metastatic setting OR patients must have demonstrated contraindications or are intolerant to taxanes
PARP inhibitors may meet the criteria for one of two lines of therapy if patient has documented germline BRCA1/BRCA2 mutation
ECOG performance status of 0 or 1
Adequate organ function as demonstrated by the following laboratory values
Hemoglobin ≥9.0 g/dL
Absolute neutrophil count (ANC) ≥1.5 × 109/L
Platelet count ≥100 × 109/L
Estimated glomerular filtration rate ≥30 mL/minute/1.73 m2
Total bilirubin ≤1.5 × upper limit of normal (ULN)
ALT and AST ≤3 × ULN in the absence of liver metastasis or ≤5 × ULN in the presence of liver metastasis
Capable of giving signed informed consent, which includes compliance with the
requirements and restrictions listed in the informed consent form and in this

Exclusion Criteria

Prior treatment with trilaciclib, sacituzumab govitecan-hziy, irinotecan, Trop-2 antibody drug conjugate, or any therapy with a topoisomerase-1 payload
Patients with known brain metastasis at enrollment
Patients with known Gilbert's disease or known homozygous for the UGT1A128 allele
Patients with bone-only disease
Malignancies other than TNBC within 3 years prior to enrollment
History of clinically significant gastrointestinal bleeding, intestinal obstruction, or gastrointestinal perforation within 6 months of enrollment
Receipt of any high dose systemic corticosteroids within 2 weeks prior to the first dose of study treatment
Current use of immunosuppressive medication
Uncontrolled ischemic heart disease or uncontrolled symptomatic congestive heart failure (Class III or IV as defined by the New York Heart Association functional classification system)
History of stroke or cerebrovascular accident within 6 months prior to first dose of study treatment
Serious active infection or severe infection within 4 weeks prior to enrollment
Prior hematopoietic stem cell or bone marrow transplantation
Pregnant or lactating women
Clear my responses

How to participate?

Step 1 Connect with a study center
What happens next?
  • You can expect the study team to contact you via email or phone in the next few days.
  • Sign up as volunteer to help accelerate the development of new treatments and to get notified about similar trials.

You are contacting

Investigator Avatar

Primary Contact



Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

Learn more

If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

Learn more

Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

Learn more

Similar trials to consider


Browse trials for

Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer

user name

Added by • 



Reply by • Private

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsa vel nobis alias. Quae eveniet velit voluptate quo doloribus maxime et dicta in sequi, corporis quod. Ea, dolor eius? Dolore, vel!

  The passcode will expire in None.

No annotations made yet

Add a private note
  • abc Select a piece of text from the left.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.
Add a private note