PMID- 30131387 OWN - NLM STAT- MEDLINE DCOM- 20200226 LR - 20200309 IS - 1557-3265 (Electronic) IS - 1078-0432 (Print) IS - 1078-0432 (Linking) VI - 25 IP - 1 DP - 2019 Jan 1 TI - Phase II Study of Iniparib with Concurrent Chemoradiation in Patients with Newly Diagnosed Glioblastoma. PG - 73-79 LID - 10.1158/1078-0432.CCR-18-0110 [doi] AB - PURPOSE: Iniparib is a purported prodrug causing cell death through intracellular conversion to nitro radical ions. We assessed the efficacy and safety of iniparib with standard radiotherapy and temozolomide in patients with newly diagnosed glioblastoma (GBM). PATIENTS AND METHODS: Adults meeting eligibility criteria were enrolled in this prospective, single-arm, open-label multi- institution phase II trial with median overall survival (mOS) compared with a historical control as the primary objective. A safety run-in component of radiotherapy + temozolomide + iniparib (n = 5) was followed by an efficacy study (n = 76) with the recommended phase II doses of iniparib (8.0 mg/kg i.v. twice/week with radiotherapy + daily temozolomide followed by 8.6 mg/kg i.v. twice/week with 5/28-day temozolomide). RESULTS: The median age of the 81 evaluable participants was 58 years (63% male). Baseline KPS was >/= 80% in 87% of participants. The mOS was 22 months [95% confidence interval (CI), 17-24] and the HR was 0.44 (95% CI, 0.35-0.55) per-person-year of follow-up. The 2- and 3-year survival rates were 38% and 25%, respectively. Treatment-related grade 3 adverse events (AEs) occurred in 27% of patients; 9 patients had AEs requiring drug discontinuation including infusion-related reaction, rash, gastritis, increased liver enzymes, and thrombocytopenia. CONCLUSIONS: Iniparib is well tolerated with radiotherapy and temozolomide in patients with newly diagnosed GBM at up to 17.2 mg/kg weekly. The primary objective of improved mOS compared with a historical control was met, indicating potential antitumor activity of iniparib in this setting. Dosing optimization (frequency and sequence) is needed prior to additional efficacy studies. CI - (c)2018 American Association for Cancer Research. FAU - Blakeley, Jaishri O AU - Blakeley JO AD - Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland. Jblakel3@jhmi.edu. AD - Department of Oncology and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland. FAU - Grossman, Stuart A AU - Grossman SA AD - Department of Oncology and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland. FAU - Chi, Andrew S AU - Chi AS AD - Laura and Isaac Perlmutter Cancer Center, New York University School of Medicine, New York, New York. FAU - Mikkelsen, Tom AU - Mikkelsen T AD - Ontario Brain Institute, Toronto, Ontario, Canada. FAU - Rosenfeld, Myrna R AU - Rosenfeld MR AUID- ORCID: 0000-0001-5095-2534 AD - Institute for Biomedical Research (IDIBAPS)/Hospital Clinic, Barcelona, Spain. FAU - Ahluwalia, Manmeet S AU - Ahluwalia MS AD - Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio. FAU - Nabors, L Burt AU - Nabors LB AUID- ORCID: 0000-0001-5926-2230 AD - Department of Neurology, University of Alabama at Birmingham, Birmingham, Alabama. FAU - Eichler, April AU - Eichler A AD - Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts. FAU - Ribas, Ignacio Garcia AU - Ribas IG AD - Takeda Oncology, Cambridge, Massachusetts. FAU - Desideri, Serena AU - Desideri S AD - Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland. FAU - Ye, Xiaobu AU - Ye X AD - Department of Oncology and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland. CN - Adult Brain Tumor Consortium LA - eng GR - P30 CA006973/CA/NCI NIH HHS/United States GR - U01 CA062475/CA/NCI NIH HHS/United States GR - UM1 CA137443/CA/NCI NIH HHS/United States GR - U01 CA137443/CA/NCI NIH HHS/United States GR - T32 CA009574/CA/NCI NIH HHS/United States PT - Clinical Trial, Phase II PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20180821 PL - United States TA - Clin Cancer Res JT - Clinical cancer research : an official journal of the American Association for Cancer Research JID - 9502500 RN - 0 (Benzamides) RN - 2ZWI7KHK8F (iniparib) RN - YF1K15M17Y (Temozolomide) SB - IM MH - Benzamides/*administration & dosage/adverse effects MH - Brain Neoplasms/*drug therapy/pathology MH - Chemoradiotherapy/adverse effects MH - Combined Modality Therapy MH - Female MH - Glioblastoma/*drug therapy/pathology MH - Humans MH - Male MH - Middle Aged MH - Temozolomide/*administration & dosage/adverse effects MH - Treatment Outcome PMC - PMC6367923 MID - NIHMS1504503 COIS- Conflict of Interest: The authors JOB, SAG, AC, TM, MRR, MSA, LBN, AE, SD, XY declare no potential conflicts of interest. IGR was an employee of Sanofi at the time of the design and launch of the study. EDAT- 2018/08/23 06:00 MHDA- 2020/02/27 06:00 PMCR- 2020/01/01 CRDT- 2018/08/23 06:00 PHST- 2018/01/11 00:00 [received] PHST- 2018/04/04 00:00 [revised] PHST- 2018/08/16 00:00 [accepted] PHST- 2018/08/23 06:00 [pubmed] PHST- 2020/02/27 06:00 [medline] PHST- 2018/08/23 06:00 [entrez] PHST- 2020/01/01 00:00 [pmc-release] AID - 1078-0432.CCR-18-0110 [pii] AID - 10.1158/1078-0432.CCR-18-0110 [doi] PST - ppublish SO - Clin Cancer Res. 2019 Jan 1;25(1):73-79. doi: 10.1158/1078-0432.CCR-18-0110. Epub 2018 Aug 21.