sirolimus and Metaplasia

sirolimus has been researched along with Metaplasia* in 2 studies

Trials

1 trial(s) available for sirolimus and Metaplasia

ArticleYear
Responses to liposomal Doxorubicin, bevacizumab, and temsirolimus in metaplastic carcinoma of the breast: biologic rationale and implications for stem-cell research in breast cancer.
    Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2011, Jul-01, Volume: 29, Issue:19

    Topics: Aged; Antibodies, Monoclonal; Antibodies, Monoclonal, Humanized; Antineoplastic Combined Chemotherapy Protocols; Bevacizumab; Breast Neoplasms; Carcinoma; Doxorubicin; Female; Humans; Metaplasia; Middle Aged; Neoplasm Metastasis; Prognosis; Receptor, ErbB-2; Receptors, Estrogen; Receptors, Progesterone; Sirolimus; Stem Cell Transplantation; Treatment Outcome

2011

Other Studies

1 other study(ies) available for sirolimus and Metaplasia

ArticleYear
Inhibition of the phosphoinositide 3-kinase pathway for the treatment of patients with metastatic metaplastic breast cancer.
    Annals of oncology : official journal of the European Society for Medical Oncology, 2015, Volume: 26, Issue:7

    Mesenchymal/metaplastic breast cancers (MpBCs) are often triple-negative (TNBC), and chemo-refractory, and can harbor phosphoinositide 3-kinase (PI3kinase) alterations; thus, therapy with mTor inhibitors may demonstrate activity.. Patients with mesenchymal/MpBC treated with temsirolimus-based regimens were evaluated. Mutational analyses [polymerase chain reaction (PCR)-based DNA sequencing method, mass spectrometric detection (Sequenom MassARRAY), or next-generation sequencing] as well as loss of phosphatase and tensin homolog (PTEN) (immunohistochemistry) were performed (archived tissue when available).. Twenty-three patients (one of whom was on two separate trials) were treated using temsirolimus-containing regimens: temsirolimus alone (n = 1 patient) or combined with the following: liposomal doxorubicin and bevacizumab (DAT, n = 18); liposomal doxorubicin (DT, n = 1); paclitaxel and bevacizumab (TAT, n = 2); paclitaxel (TT, n = 1); carboplatin and bevacizumab (CAT, n = 1). Response rate [complete response (CR) + partial response (PR)] was 25% across all regimens; 32% in the anthracycline-based regimens [DAT and DT (CR = 2, PR = 4; N = 19)]. An additional two patients achieved stable disease (SD) ≥6 months [total SD ≥6 months/CR/PR = 8 (33%)]. Molecular aberrations in the PI3K pathway were common: PIK3CA mutation = 6/15 (40%), PTEN mutation = 3/11 (27%), and PTEN loss = 2/11 (18%). A point mutation in the NF2 gene (K159fs*16; NF2 alterations can activate mTor) was found in one patient who attained CR (3+ years). Of the eight patients who achieved SD ≥6 months/CR/PR, all 4 patients with available tissue had a molecular aberration that activate the PIK3CA/Akt/mTOR axis: PIK3CA mutation = 2; PTEN loss = 1; NF2 aberration = 1.. DAT has activity in MpBCs including complete CRs. Molecular aberrations that can activate the PI3 K/Akt/mTOR axis are common in MpBC.

    Topics: Adult; Aged; Aged, 80 and over; Antineoplastic Combined Chemotherapy Protocols; Bevacizumab; Breast Neoplasms; Carboplatin; Class I Phosphatidylinositol 3-Kinases; Doxorubicin; Female; Follow-Up Studies; Humans; Mesoderm; Metaplasia; Middle Aged; Neoplasm Metastasis; Neoplasm Staging; Paclitaxel; Phosphatidylinositol 3-Kinases; Phosphoinositide-3 Kinase Inhibitors; Polyethylene Glycols; Polymerase Chain Reaction; Prognosis; PTEN Phosphohydrolase; Sirolimus; Survival Rate; Young Adult

2015