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Purpose: Estimated glomerular filtration rate (eGFR) is commonly used to calculate carboplatin doses and capping the eGFR may be used to reduce the risk of excessive dosing and toxicity. We sought to retrospectively examine the impact of our carboplatin guidelines on pathological complete response rates (pCR) and toxicity in women with HER2+ breast cancer receiving neoadjuvant docetaxel, carboplatin, trastuzumab and pertuzumab (TCHP).
Methods: The delivered area under the curve (dAUC) was calculated [(actual carboplatin dose at cycle 1 ÷ dose calculated with uncapped/unbanded eGFR) × 6] and dichotomized at the median value. The impact of this and other clinical factors on pCR rate, dose intensity (DI) and toxicity was assessed.
Results: 124 eligible patients were identified of whom 63.7% (79/124) achieved pCR. The median dAUC at cycle 1 was 5.75 mg × ml/min. Those with lower dAUC were more frequently younger and overweight/obese. Patients with lower dAUC had significantly inferior pCR rates of 54.8% (34/62) vs 72.6% (45/62), respectively (p = 0.040). Similar results were seen in the ER+ subgroup; 45.2% (19/42) vs 68.3% (28/41), p = 0.037%, whereas no significant difference was seen among ER- patients; 75.0% (15/20) vs 81.0% (17/21), p = 0.72. DI and toxicity were comparable between the two dAUC groups.
Conclusions: The overall pCR rate was high in patients with HER2+ breast cancer receiving the TCHP regimen; however, carboplatin dose capping resulted in inferior pCR rates, particularly in the ER+ subgroup. To ensure optimal dosing, isotopic measurement of renal function is warranted in patients who would otherwise have their eGFR and dose capped.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7599187 | PMC |
http://dx.doi.org/10.1007/s10549-020-05868-z | DOI Listing |
BMC Vet Res
December 2024
Ecole Nationale Vétérinaire d'Alfort, Maisons-Alfort, France.
Background: Carboplatin is a human chemotherapeutic agent which is frequently used in dogs for the management of solid tumors. In human patient, its dosage is adjusted carefully, based on the creatinine clearance computation. In dogs however, the pharmacokinetics of carboplatin is poorly known and the dose 300 mg/m2 is based mostly on empirical data.
View Article and Find Full Text PDFPediatr Blood Cancer
December 2024
Division of Oncology, Children's National Hospital and Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, District of Columbia, USA.
Purpose: National Wilms Tumor Study-5 (NWTS-5) and AREN0321 evaluated the outcomes of children with rhabdoid tumor of the kidney (RTK) and malignant rhabdoid tumor of soft tissues (MRT).
Patients And Methods: Eligible patients with RTK were enrolled prospectively on NWTS-5 (1995-2002) and treated with carboplatin and etoposide alternating with cyclophosphamide (Regimen RTK). Patients with RTK or MRT were enrolled on AREN0321 (2005-2012) and received vincristine, doxorubicin, and cyclophosphamide alternating with carboplatin, cyclophosphamide, and etoposide (Regimens UH-1 or dose-reduced Revised UH-1).
Background: Most patients with small-cell lung cancer (SCLC) present with extensive-stage (ES) disease and have a poor prognosis despite achieving high initial response rates to platinum-based doublet chemotherapy. This study evaluated whether adding hydroxychloroquine (HCQ) to chemotherapy could improve outcomes.
Methods: This was a randomised multicentre phase II trial.
Clin Genitourin Cancer
November 2024
Huntsman Cancer Hospital Division of Medical Oncology, Salt Lake City, UT.
Background: The National Comprehensive Cancer Network Bladder Cancer Guidelines recommend carboplatin and gemcitabine first-line treatment in patients with cisplatin-ineligible, metastatic urothelial cancer (mUC) -- a Category 1 recommendation. For these patients, the median overall survival is 9.3 months.
View Article and Find Full Text PDFJ Clin Oncol
December 2024
Vanderbilt-Ingram Cancer Center, Nashville, TN.
Purpose: To provide evidence-based guidance for clinicians who treat patients with stage I-III anal cancer.
Methods: A systematic review of the literature conducted by the Minnesota Evidence-based Practice Center provided the evidence base for this guideline. An ASCO Expert Panel reviewed this evidence and came to consensus on a set of evidence-based recommendations.
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