scholarly journals Buparlisib in Patients With Recurrent Glioblastoma Harboring Phosphatidylinositol 3-Kinase Pathway Activation: An Open-Label, Multicenter, Multi-Arm, Phase II Trial

2019 ◽  
Vol 37 (9) ◽  
pp. 741-750 ◽  
Author(s):  
Patrick Y. Wen ◽  
Mehdi Touat ◽  
Brian M. Alexander ◽  
Ingo K. Mellinghoff ◽  
Shakti Ramkissoon ◽  
...  
Keyword(s):  
Phase Ii ◽  
Tumor Tissue ◽  
Phase Ii Trial ◽  
Pi3k Pathway ◽  
Recurrent Glioblastoma ◽  
Phosphatidylinositol 3 Kinase ◽  
Open Label ◽  
Brain Penetration ◽  
Pathway Activation ◽  
Pathway Inhibition

PURPOSE Phosphatidylinositol 3-kinase (PI3K) signaling is highly active in glioblastomas. We assessed pharmacokinetics, pharmacodynamics, and efficacy of the pan-PI3K inhibitor buparlisib in patients with recurrent glioblastoma with PI3K pathway activation. METHODS This study was a multicenter, open-label, multi-arm, phase II trial in patients with PI3K pathway–activated glioblastoma at first or second recurrence. In cohort 1, patients scheduled for re-operation after progression received buparlisib for 7 to 13 days before surgery to evaluate brain penetration and modulation of the PI3K pathway in resected tumor tissue. In cohort 2, patients not eligible for re-operation received buparlisib until progression or unacceptable toxicity. Once daily oral buparlisib 100 mg was administered on a continuous 28-day schedule. Primary end points were PI3K pathway inhibition in tumor tissue and buparlisib pharmacokinetics in cohort 1 and 6-month progression-free survival (PFS6) in cohort 2. RESULTS Sixty-five patients were treated (cohort 1, n = 15; cohort 2, n = 50). In cohort 1, reduction of phosphorylated AKTS473 immunohistochemistry score was achieved in six (42.8%) of 14 patients, but effects on phosphoribosomal protein S6S235/236 and proliferation were not significant. Tumor-to-plasma drug level was 1.0. In cohort 2, four (8%) of 50 patients reached 6-month PFS6, and the median PFS was 1.7 months (95% CI, 1.4 to 1.8 months). The most common grade 3 or greater adverse events related to treatment were lipase elevation (n = 7 [10.8%]), fatigue (n = 4 [6.2%]), hyperglycemia (n = 3 [4.6%]), and elevated ALT (n = 3 [4.6%]). CONCLUSION Buparlisib had minimal single-agent efficacy in patients with PI3K-activated recurrent glioblastoma. Although buparlisib achieved significant brain penetration, the lack of clinical efficacy was explained by incomplete blockade of the PI3K pathway in tumor tissue. Integrative results suggest that additional study of PI3K inhibitors that achieve more-complete pathway inhibition may still be warranted.

Phase II study of ifosfamide, carboplatin and etoposide (ICE) in recurrent glioblastoma

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 2066-2066
Author(s):  
T. Aoki ◽  
K. Nojima ◽  
T. Mizutani ◽  
M. Ishikawa ◽  
A. Takasu ◽  
...  
Keyword(s):  
Phase Ii ◽  
Response Rate ◽  
Phase Ii Trial ◽  
Phase Ii Study ◽  
Progression Free Survival ◽  
Recurrent Glioblastoma ◽  
First Line ◽  
Open Label ◽  
Free Survival ◽  
Secondary Endpoints

2066 Background: To evaluate the efficacy and tolerability of ifosfamide, carboplatin and etoposide ( ICE ) in patients with recurrent glioblastoma. Methods: This was an open-label, single-center phase II trial. Forty-two patients with first recurrent glioblastoma after surgery, standard radiotherapy and a first-line temozolomide-based or ACNU-based chemotherapy, were enrolled.The primary endpoint was progression-free survival at 6 months ( PFS-6 ), and secondary endpoints were response rate, toxicity, and survival. Chemotherapy consisted of Ifosfamide ( 700 mg / m2 on day 1, 2 and 3 ), carbopaltin ( 100 mg / m2 on day 1 ), etoposide ( 70 mg / m2 on day 1, 2, and 3 ), every 6 weeks. Results: PFS-6 was 37 %. The median PFS was 17 weeks. Response rate was 27 %. Adverse events were generally mild ( grade 1 or 2 ) and consisted mainly of alopecia. Conclusions: This regimen is well tolerated and has activity in patients with recurrent glioblastoma. No significant financial relationships to disclose.

scholarly journals CTNI-47. PHASE II STUDY OF ABEMACICLIB IN RECURRENT GBM PATIENTS WITH CDKN2A/B LOSS AND INTACT RB

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii53-ii53
Author(s):  
Eudocia Lee ◽  
Alona Muzikansky ◽  
Isabel Arrillaga-Romany ◽  
Ugonma Chukwueke ◽  
Timothy Cloughesy ◽  
...  
Keyword(s):  
Phase Ii ◽  
Phase Ii Trial ◽  
Recurrent Glioblastoma ◽  
Open Label ◽  
Cyclin Dependent Kinases ◽  
Best Response ◽  
Common Grade ◽  
First Relapse ◽  
Grade 3 ◽  
Recurrent Gbm

Abstract Deregulation of the cyclin-dependent kinases (CDK) 4 and 6 (cdk4/6)–cyclin D-INK4—retinoblastoma protein (Rb) signaling pathway is among the most common aberrations found in glioblastoma (GBM) with more than 80% of patients estimated to be affected. We conducted an open label, multi-center, phase II trial of abemaciclib in participants with recurrent glioblastoma (GBM) at their first relapse and with documented evidence of CDKN2A/B loss and intact RB from archival tissue. A total of 32 patients enrolled on the non-surgical arm of the study with 13 women (40.63%) and median KPS 90 [range 60–100]. The PFS6 rate was 9.37% [95% CI, 2.4%, 22.27%], median PFS 55 days [95% CI, 49, 56], and median OS 384 days [95% CI, 228, 488]. Out of 31 evaluable patients, best response was PR 1 (3.2%), SD 11 (35.5%), and PD 19 (61.3%). The most common grade 3 or higher toxicities at least possibly related to abemaciclib included leukopenia (21.9%), neutropenia (18.6%), lymphopenia (9.4%), and thrombocytopenia (6.3%). Abemaciclib has minimal activity in this preselected recurrent GBM population. Correlative studies from the surgical arm of this study are pending.

scholarly journals Safety and efficacy of N-acetylcysteine in hospitalized patients with HIV-associated tuberculosis: An open-label, randomized, phase II trial (RIPENACTB Study)

PLoS ONE ◽  
2020 ◽  
Vol 15 (6) ◽  
pp. e0235381 ◽  
Author(s):  
Izabella Picinin Safe ◽  
Marcus Vinícius Guimarães Lacerda ◽  
Vitoria Silva Printes ◽  
Adriana Ferreira Praia Marins ◽  
Amanda Lia Rebelo Rabelo ◽  
...  
Keyword(s):  
Phase Ii ◽  
Phase Ii Trial ◽  
Hospitalized Patients ◽  
Open Label ◽  
Safety And Efficacy ◽  
Randomized Phase Ii

scholarly journals An open-label, single-arm, phase II trial of buparlisib in patients with melanoma brain metastases not eligible for surgery or radiosurgery—the BUMPER study

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Teresa Amaral ◽  
Heike Niessner ◽  
Tobias Sinnberg ◽  
Ioannis Thomas ◽  
Andreas Meiwes ◽  
...  
Keyword(s):  
Phase Ii ◽  
Phase Ii Trial ◽  
Local Therapy ◽  
Progression Free Survival ◽  
Pi3k Inhibitor ◽  
Open Label ◽  
Preclinical Data ◽  
Overall Response ◽  
Intracranial Disease ◽  
Dismal Prognosis

Abstract Background Patients with melanoma brain metastasis (MBM) still carry a dismal prognosis. Preclinical data originated in xenograft models showed that buparlisib therapy was highly effective in therapy-naïve MBM. Patients and Methods In this open-label, phase II trial, we investigate the safety and efficacy of monotherapy with buparlisib, a PI3K inhibitor, in patients with asymptomatic MBM who were not candidates for local therapy. These patients had also progressed under immunotherapy if BRAF wild-type or under targeted therapy with BRAF/MEK inhibitors if carrying a BRAFV600E/K mutation. The primary endpoint was the intracranial disease control rate assessed by the investigators. The secondary endpoints were overall response rate, duration of response (DOR) of intracranial disease, overall response, progression-free survival (PFS), overall survival (OS), safety, and tolerability of buparlisib. Results A total of 20 patients were screened and 17 patients were treated with buparlisib. Twelve patients had progressed under more than 2 systemic therapy lines and 17 had received at least 1 previous local therapy. There were no intracranial responses. Three patients achieved intracranial stable disease; the median DOR was 117 days. The median PFS was 42 days (95% confidence interval [CI]: 23–61 days) and the median OS was 5.0 months (95% CI: 2.24–7.76 months). No new safety signs were observed. Conclusions Buparlisib was well tolerated but no intracranial responses were observed. These results might be explained in part by the inclusion of only heavily pretreated patients. However, preclinical data strongly support the rationale to explore PI3K inhibitor-based combinations in patients with MBM displaying hyperactivation of the PI3K–AKT pathway.

A randomised, open-label phase II trial of afatinib versus cetuximab in patients with metastatic colorectal cancer

2014 ◽  
Vol 50 (18) ◽  
pp. 3136-3144 ◽  
Author(s):  
Tamas Hickish ◽  
Jim Cassidy ◽  
David Propper ◽  
Ian Chau ◽  
Stephen Falk ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Metastatic Colorectal Cancer ◽  
Phase Ii ◽  
Phase Ii Trial ◽  
Open Label ◽  
Open Label Phase
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