2
|
O'Shaughnessy J, Wright GS, Thummala AR, Danso MA, Popovic L, Pluard TJ, Cheung E, Han HS, Daniel BR, Vojnovic Z, Vasev N, Ling M, Richards DA, Wilks ST, Milenkovic D, Sorrentino JA, Roberts PJ, Bomar M, Yang Z, Antal JM, Malik RK, Morris SR, Tan A. Abstract PD1-01: Trilaciclib (T), a CDK4/6 inhibitor, dosed with gemcitabine (G), carboplatin (C) in metastatic triple negative breast cancer (mTNBC) patients: Preliminary phase 2 results. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-pd1-01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Cytotoxic chemotherapy-induced damage of hematopoietic stem and progenitor cells (HSPCs) results in acute toxicities consisting of multi-lineage myelosuppression, and late onset toxicities consisting of progressive bone marrow suppression with increased incidence of therapy-related myeloid neoplasms. T is an IV CDK4/6 inhibitor in development to preserve HSPC and immune system function during cytotoxic chemotherapy (myelopreservation). Proof of concept for myelopreservation with T was observed in a randomized, placebo-controlled Phase 2 trial in small-cell lung cancer patients receiving 1st-line chemotherapy. This trial in mTNBC patients (NCT02978716) was designed to explore the utility of T in combination with GC.
Methods: This Phase 2, randomized, open-label study enrolled patients in the US and EU with mTNBC who had received 0-2 prior systemic cytotoxic therapies in the locally recurrent or metastatic setting and had no symptomatic brain metastases. Patients were randomized (1:1:1) to GC alone (Group 1) or T plus GC (Group 2) using a standard schedule (D1, 8 every 21 days) or to an alternative schedule (T on D1, 2, 8 and 9 with GC on D2 and 9 every 21 days; Group 3). On those days when both T and GC were scheduled, T was administered iv prior to GC infusion. Prophylactic growth factors were not administered in cycle 1; otherwise supportive care was allowed as needed. Primary objectives were safety and tolerability; tumor response was evaluated using RECIST v1.1 and PFS and OS were assessed. Myelopreservation endpoints reflecting the potential effects of T on multiple cellular lineages include occurrence of Grade 4 neutropenia (primary), RBC and platelet transfusions (primary), and lymphocyte counts with immune profiling (secondary and exploratory). A signature of CDK4/6 independence developed from preclinical data will be used to evaluate archival tumor tissue samples and data analysis is ongoing.
Results: 95 patients were dosed; median age 57 years (range 32,86), ECOG PS 0 (53%) or 1 (47%), 25% had liver metastases at baseline, and approximately 50% had received no systemic therapy in the recurrent/metastatic setting. Fifty-five patients remain on treatment. Disease progression was the most common reason for drug discontinuation (22/40; 55%). Overall the most common (≥ 25%) TEAEs were anemia (47%), nausea (35%), fatigue (34%), neutropenia (32%), platelet count decreased (25%), and vomiting (25%). The most frequent (≥ 15%) Grade 3 or 4 TEAEs were hematologic toxicities, i.e. neutropenia (28%), anemia (21%), neutrophil count decreased (21%) and thrombocytopenia (16%). These were also the most frequent drug-related TEAEs observed. Tumor efficacy data are being evaluated.
Conclusions: This trial, assessing the myelopreservation effects of T when combined with GC in patients with mTNBC, has completed enrollment. Myelopreservation data, immune profiling, as well as ORR and preliminary PFS results will be presented by study arm at the meeting.
Citation Format: O'Shaughnessy J, Wright GS, Thummala AR, Danso MA, Popovic L, Pluard TJ, Cheung E, Han HS, Daniel BR, Vojnovic Z, Vasev N, Ling M, Richards DA, Wilks ST, Milenkovic D, Sorrentino JA, Roberts PJ, Bomar M, Yang Z, Antal JM, Malik RK, Morris SR, Tan A. Trilaciclib (T), a CDK4/6 inhibitor, dosed with gemcitabine (G), carboplatin (C) in metastatic triple negative breast cancer (mTNBC) patients: Preliminary phase 2 results [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr PD1-01.
Collapse
Affiliation(s)
- J O'Shaughnessy
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - GS Wright
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - AR Thummala
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - MA Danso
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - L Popovic
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - TJ Pluard
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - E Cheung
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - HS Han
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - BR Daniel
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - Z Vojnovic
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - N Vasev
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - M Ling
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - DA Richards
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - ST Wilks
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - D Milenkovic
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - JA Sorrentino
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - PJ Roberts
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - M Bomar
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - Z Yang
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - JM Antal
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - RK Malik
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - SR Morris
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| | - A Tan
- Texas Oncology Baylor Sammons, US Oncology Research, Dallas, TX; Florida Cancer Specialists (North), Saint Petersburg, FL; Comprehensive Cancer Centers of Nevada, US Oncology Research, Las Vegas, NV; Virginia Oncology Specialists, US Oncology Research, Norfolk, VA; Oncology Institute of Vojvodina, University of Novi Sad, Sremska Kamenica, Serbia; Saint Luke's Cancer Institute, Kansas City, MO; Innovative Clinical Research Institute, Whittier, CA; Moffitt Cancer Center, Tampa, FL; Tennessee Oncology – Chattanooga, Chattanooga, TN; County Hospital Varazdin, Varaždin, Croatia; University Clinic of Radiotherapy and Oncology, Skopje, Macedonia, The Former Yugoslav Republic of; Rocky Mountain Cancer Centers, US Oncology Research, Denver, CO; Texas Oncology Tyler, US Oncology Research, Tyler, TX; Texas Oncology San Antonio Northeast, US Oncology Research, San Antonio, TX; Clinical Center Nis, Clinic of Oncology, Niš, Serbia; G1 Therapeutics, Research Triangle Park, NC; Levine Cancer Institute, Atrium Health, Charlo
| |
Collapse
|
3
|
Yardley DA, Peacock N, Shroff S, Molthrop DC, Anz B, Daniel BR, Young RR, Weaver R, Harwin W, Webb CD, Ward P, Shastry M, DeBusk LM, Midha R, Hainsworth JD, Burris III HA. Abstract P1-12-04: A phase 2 study of eribulin in breast cancer not achieving a pathologic complete response (pCR) to neoadjuvant chemotherapy (NAC). Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p1-12-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Residual breast cancer after NAC is associated with a high risk of recurrence. Little evidence supports the use of further chemotherapy in this setting. Eribulin, an inhibitor of microtubule dynamics, demonstrated a survival advantage in patients with metastatic breast cancer who had progressed after previous anthracycline and taxane therapy. This phase 2 trial assessed the efficacy of eribulin (2-yr disease-free survival) administered postoperatively to breast cancer pts not achieving a pCR following standard NAC.
Methods: Women with invasive breast cancer (stage T1-4b, N0-2, M0 at diagnosis) and evidence of residual cancer (>5 mm) in the breast or axillary lymph nodes (LN) following ≥4 cycles of standard anthracycline and/or taxane-containing NAC were eligible. Additional eligibility criteria: age ≥18 yrs, peripheral neuropathy < 1, adequate hematologic, hepatic, and renal function. 3 groups were studied: Cohort A-triple negative (TN), Cohort B-HR+/HER2-, Cohort C-HER2+. After recovery from definitive surgery, all pts received eribulin mesylate 1.4mg/m2 IV on days 1 and 8 every 21 days for 6 cycles. Cohort C pts also received trastuzumab 6mg/kg IV day 1 every 21 days for a total of 1 yr from start of NAC. Adjuvant hormonal therapy and loco-regional radiotherapy were administered per institutional guidelines. We hypothesized post-operative eribulin would result in a 40% increase over the reported 40% 2 yr DFS for TN, and a 15% increase over the reported 80% 2 yr DFS for HR+/HER2- pts who did not achieve pCR following standard NAC.
Results: 127 pts were enrolled (54, Cohort A; 42, Cohort B; 31, Cohort C). Pts on Cohort C continue with study treatment. Here, we present the results of 95 pts treated on Cohorts A and B. Median age-52 yrs (range, 27-74). 87 pts (92%) had invasive ductal adenocarcinoma, 6 (6%) invasive lobular, 1 (1%) mucinous, and 1 (1 %) unknown; 34 pts (36%) had T3 or T4 tumors and 65 (68%) had N1-2 disease at diagnosis. NAC with anthracyclines was administered to 74 pts (78%), taxanes to 88 (93%), and 72 (76%) received both. 71 pts (75%) had mastectomies, 24 (25%) had breast conserving surgery. Median residual tumor was 17.5 mm (range 0.1 to 80); 60 pts (63%) were LN+. 78 pts (81%) completed the planned 6 cycles of eribulin. Adjuvant radiation was administered in 28 pts (30%). 3 pts discontinued treatment due to toxicity (1 each with G3 neutropenia, G3 nausea, and unknown grade neuropathy). The most common treatment-related G3/4 adverse events were neutropenia [29 pts (31%)] and leukopenia [10 pts (11%)]. 3 pts (3%) had G3/4 febrile neutropenia and 2 pts (2%) had G3/4 neuropathy. Growth factors were administered to 22 pts (24%). There were no treatment-related deaths. With a median follow up of 19.2 and 14.9 months for Cohorts A and B respectively, the 2 yr DFS probabilities calculated from date of surgery were 61.1 % (95% CI-41.2-76.0) for Cohort A; 82.2% (95% CI-60.2-92.7) for Cohort B.
Conclusions: The addition of eribulin is safe and feasible in pts who do not achieve pCR following anthracycline and/or taxane based NAC. At a median follow up of 19.2 months, a statistically significant improvement in the estimated 2 yr DFS was evident in the TN (Cohort A) pts.
Citation Format: Yardley DA, Peacock N, Shroff S, Molthrop, Jr DC, Anz B, Daniel BR, Young RR, Weaver R, Harwin W, Webb CD, Ward P, Shastry M, DeBusk LM, Midha R, Hainsworth JD, Burris III HA. A phase 2 study of eribulin in breast cancer not achieving a pathologic complete response (pCR) to neoadjuvant chemotherapy (NAC). [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P1-12-04.
Collapse
Affiliation(s)
- DA Yardley
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - N Peacock
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - S Shroff
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - DC Molthrop
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - B Anz
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - BR Daniel
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - RR Young
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - R Weaver
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - W Harwin
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - CD Webb
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - P Ward
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - M Shastry
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - LM DeBusk
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - R Midha
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - JD Hainsworth
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| | - HA Burris III
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville, TN; Florida Hospital Cancer Institute, Orlando, FL; Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Chattanooga, TN; The Center for Cancer and Blood Disorders, Fort Worth, TX; Sarah Cannon Research Institute/Florida Cancer Specialists, St Petersburg, FL; Sarah Cannon Research Institute/Florida Cancer Specialists, Fort Myers, FL; Baptist Health Louisville, Louisville, KY; Sarah Cannon Research Institute/Oncology Hematology Care, Inc, Cincinnati, OH; Sarah Cannon Research Institute, Nashville, TN
| |
Collapse
|