Perlow, Haley K.; Yaney, Alexander; Yang, Michael; Klamer, Brett; Matsui, Jennifer; Raval, Raju R.; Blakaj, Dukagjin M.; Arnett, Andrea; Beyer, Sasha; Elder, James B.; Ammirati, Mario; Lonser, Russell; Hardesty, Douglas; Ong, Shirley; Giglio, Pierre; Pillainayagam, Clement; Goranovich, Justin; Grecula, John; Chakravarti, Arnab; Gondi, Vinai; Brown, Paul D.; Palmer, Joshua D. published the artcile< Dose-escalated accelerated hypofractionation for elderly or frail patients with a newly diagnosed glioblastoma>, Application of C19H34O2, the main research area is glioblastoma cancer diagnosis hypofractionation temozolomide MGMT methylation drug toxicity; Elderly; Frail; Glioblastoma; Hypofractionation; Radiation.
The standard of care for elderly glioblastoma patients is 40 Gy in 15 fraction radiotherapy with temozolomide (TMZ). However, this regimen has a lower biol. equivalent dose (BED) compared to the Stupp regimen of 60 Gy in 30 fractions. We hypothesize that accelerated hypofractionated radiation of 52.5 Gy in 15 fractions (BED equivalent to Stupp) will have superior survival compared to 40 Gy in 15 fractions. Elderly patients (≥ 65 years old) who received hypofractionated radiation with TMZ from 2010 to 2020 were included in this anal. Overall survival (OS) and progression free survival were defined as the time elapsed between surgery/biopsy and death from any cause or progression. Baseline characteristics were compared between patients who received 40 and 52.5 Gy. Univariable and multivariable analyses were performed. Sixty-six newly diagnosed patients were eligible for anal. Thirty-nine patients were treated with 40 Gy in 15 fractions while twenty-seven were treated with 52.5 Gy in 15 fractions. Patients had no significant differences in age, sex, methylation status, or performance status. OS was superior in the 52.5 Gy group (14.1 mo) when compared to the 40 Gy group (7.9 mo, p = 0.011). Isoeffective dosing to 52.5 Gy was shown to be an independent prognostic factor for improved OS on multivariable anal. Isoeffective dosing to 52.5 Gy in 15 fractions was associated with superior OS compared to standard of care 40 Gy in 15 fractions. These hypothesis generating data support accelerated hypofractionation in future prospective trials.
Journal of Neuro-Oncology published new progress about Alopecia. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics