1.
Potentially Overestimated Efficacy of Nanoparticle Albumin-bound Paclitaxel compared with Solvent-based Paclitaxel in Breast Cancer: A Systemic Review and Meta-analysis
Li BX, Chen XJ, Ding TJ, Liu YH, Ma TT, Zhang GL, Wang XM
Journal of Cancer. 2021;12(17):5164-5172
Abstract
Background: Nanoparticle albumin-bound paclitaxel (nab-PTX) has exhibited clinical efficacy in breast cancer treatment, but toxicities can be yielded more at the same time. We did this meta-analysis aiming to unambiguously compare nab-PTX with conventional solvent-based paclitaxel (sb-PTX) in breast cancer patients of all stages. Method: Pubmed, Embase and Cochrane Library were searched for head-to-head randomized controlled trials of nab-PTX and sb-PTX in breast cancer. Risk ratio (RR) with 95% confidence interval was used for dichotomous variables while Hazard ratio (HR) was used for time-to-event outcomes. Results: Our review finally included 9 studies with 3508 patients. Nab-PTX showed a benefit on objective response rate (ORR) (RR=1.22 [1.04-1.43], P=0.01) as well as non-inferiority compared with sb-PTX in disease control rate (DCR) (RR=1.01 [0.98-1.04], P=0.44), overall survival (OS) (HR=0.99 [0.93-1.05], P=0.81) and disease free survival/progression free survival (DFS/PFS) (HR=0.92 [0.81-1.05], P=0.21). However, when it comes to toxicities (fatigue, nausea or vomiting, peripheral sensory neuropathy and adverse event related discontinuation), results favored sb-PTX (RR=2.89 [1.07-7.8], 3.15 [1.78-5.59], 2.11 [1.32-3.37], 2.02 [1.61-2.53]; P<0.05). Patients with metastatic tumors or undergoing conventional schedule responses better to nab-PTX than the compared groups (RR of ORR in metastatic vs early or locally advanced patients: 1.46 [1.09-1.96] vs 1.01 [0.94-1.08]; conventional vs dose dense group: 1.59 [1.23-2.06] vs 1.01 [0.91-1.12]). Conclusions: Nab-PTX can improve ORR compared with paclitaxel and should be given priority to when aiming to reduce tumor load in breast cancer. Sb-PTX of dose dense schedule is recommended when toxicity of nab-PTX is hard to bear for breast cancer patients.
2.
Efficacy of immunosuppressive therapy in children with acquired aplastic anemia
Wang SC, Zou Y, Chen XJ, Yang WY, Liu TF, Zhang L, Chen YM, Guo Y, Zhu XF
Chinese Journal of Pediatrics. 2009;47((1):):53-6.
Abstract
OBJECTIVE This study was designed to evaluate the efficacy of immunosuppressive therapy (IST) regimens as treatment of children with acquired severe aplastic anemia (SAA). METHODS Data of consecutive 112 children with SAA who had no HLA-matched sibling seen from January 2000 to June 2006 were retrospectively analyzed. The patients were randomized to receive one of the following IST regimens: cyclosporine A (CSA) alone (IST regimen I); CSA and intravenous immunoglobulin (IVIG) [400 mg/(kg x d) x 5 d] (IST regimen II); rabbit anti-T-lymphocyte globulin (R-ATG) [3-5 mg/(kg x d) x 5 d] and CSA (IST regimen III). No repeated courses of R-ATG were given for nonresponders. All the patients also received stanozolol or testosterone propionate. The dose of CSA was adjusted to maintain trough drug levels above 100 microg/L and peak drug levels above 300 microg/L. RESULTS The overall rate of response to IST regimen I was 26. 92% and to IST regimen II was 33. 33%. The response to IST regimen III (62. 5%) was significantly higher (P = 0. 001). The response to IST regimen I and IST regimen II had no significant difference. The 5-year overall survival for IST regimens I, II, and III was 20. 50% +/- 15. 41%, 39. 77% +/- 9. 77%, and 66. 27% +/- 6. 84%, respectively. CONCLUSION If patients had no HLA-matched sibling, the combination of R-ATG and CSA remains the best combination for the treatment of children with SAA, providing a survival advantage at 5 years.