G1 Therapeutics Announces Updated Results from Phase 2 Trial of Trilaciclib in Combination with Chemotherapy Showed Statistically Significant Improvement in Overall Survival in Women with Metastatic Triple-Negative Breast Cancer
- Detailed data from this trial will be presented at a medical meeting later this year -
Myelopreservation results, objective response rate (ORR), progression-free survival (PFS) and safety data from this trial were presented at the 2018 San Antonio Breast Cancer Symposium (SABCS). Updated anti-tumor efficacy results demonstrated that women receiving trilaciclib and a chemotherapy regimen of gemcitabine/carboplatin had a statistically significant improvement in OS compared with those receiving gemcitabine/carboplatin alone.
“Triple-negative breast cancer is the most aggressive type of breast cancer, and women diagnosed with metastatic TNBC need new treatment options. We look forward to sharing these data with regulators, as well as presenting findings from this trial at a medical meeting later this year,” said
About the Study
This randomized, open-label Phase 2 clinical trial (NCT02978716) enrolled 102 patients with mTNBC who had received 0-2 prior lines of therapy in the recurrent/metastatic setting. In this three-arm trial, all patients received a chemotherapy regimen of gemcitabine/carboplatin (GC). Patients were randomized to receive GC only or GC plus one of two dosing schedules of trilaciclib: trilaciclib administered on the day of chemotherapy or trilaciclib administered the day prior to and the day of chemotherapy. Primary endpoints for the trial included myelopreservation measures; secondary endpoints included additional myelopreservation measures and anti-tumor efficacy measures of ORR, PFS and OS.
Topline OS improvements were statistically significant in both trilaciclib arms compared with the control arm. ORR and PFS data were consistent with results presented at SABCS 2018. The safety and tolerability of trilaciclib were consistent with previously reported data and there have been no serious adverse events attributed to treatment with trilaciclib in this trial.
Trilaciclib is a first-in-class myelopreservation agent designed to protect the bone marrow from damage by chemotherapy and improve patient outcomes. G1 expects to submit marketing applications in the U.S. and
G1 is based in
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as "may," "will," "expect," "plan," "anticipate," "estimate," "intend" and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. Forward-looking statements in this news release include, but are not limited to, the therapeutic potential of trilaciclib, lerociclib and G1T48 and the timing for next steps with regard to the trilaciclib marketing applications, and are based on the Company’s expectations and assumptions as of the date of this press release. Each of these forward-looking statements involves risks and uncertainties. Factors that may cause the Company’s actual results to differ from those expressed or implied in the forward-looking statements in this press release are discussed in the Company’s filings with the U.S. Securities and Exchange Commission, including the "Risk Factors" sections contained therein and include, but are not limited to, the Company’s ability to complete clinical trials for, obtain approvals for and commercialize any of its product candidates; the Company’s initial success in ongoing clinical trials may not be indicative of results obtained when these trials are completed or in later stage trials; the inherent uncertainties associated with developing new products or technologies and operating as a development-stage company; the Company’s development of a CDK4/6 inhibitor to reduce chemotherapy-induced myelosuppression is novel, unproven and rapidly evolving and may never lead to a marketable product; and market conditions. Except as required by law, the Company assumes no obligation to update any forward-looking statements contained herein to reflect any change in expectations, even as new information becomes available.
Head of Investor Relations/Public Relations
Source: G1 Therapeutics