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Avasopasem manganese (GC4419) protects against cisplatin-induced chronic kidney disease: An exploratory analysis of renal metrics from a randomized phase 2b clinical trial in head and neck cancer patients
Journal article   Open access   Peer reviewed

Avasopasem manganese (GC4419) protects against cisplatin-induced chronic kidney disease: An exploratory analysis of renal metrics from a randomized phase 2b clinical trial in head and neck cancer patients

K.A. Mapuskar, G. Vasquez Martinez, C.F. Pulliam, M.S. Petronek, E.J. Steinbach, V. Monga, M. Furqan, J.G. Jetton, D.P. Saunders, A. Pearce, …
Redox biology, Vol.60, pp.102599-102599
01/03/2023
DOI: 10.1016/j.redox.2022.102599
PMCID: PMC9852651
PMID: 36640725
url
https://doi.org/10.1016/j.redox.2022.102599View
Published (Version of record) Open Access

Abstract

Head and neck squamous cell carcinoma (HNSCC) patients treated with high-dose cisplatin concurrently with radiotherapy (hdCis-RT) commonly suffer kidney injury leading to acute and chronic kidney disease (AKD and CKD, respectively). We conducted a retrospective analysis of renal function and kidney injury-related plasma biomarkers in a subset of HNSCC subjects receiving hdCis-RT in a double-blinded, placebo-controlled clinical trial (NCT02508389) evaluating the superoxide dismutase mimetic, avasopasem manganese (AVA), an investigational new drug. We found that 90 mg AVA treatment prevented a significant reduction in estimated glomerular filtration rate (eGFR) three months as well as six and twelve months after treatment compared to 30 mg AVA and placebo. Moreover, AVA treatment may have allowed renal repair in the first 22 days following cisplatin treatment as evidenced by an increase in epithelial growth factor (EGF), known to aid in renal recovery. An upward trend was also observed in plasma iron homeostasis proteins including total iron (Fe-blood) and iron saturation (Fe-saturation) in the 90 mg AVA group versus placebo. These data support the hypothesis that treatment with 90 mg AVA mitigates cisplatin-induced CKD by inhibiting hdCis-induced renal changes and promoting renal recovery. [Display omitted] •Treatment with avasopasem manganese (GC4419) may mitigate renal function decline in head and neck cancer (HNC) patients treated with high-dose cisplatin administered concurrently with radiotherapy (hdCis-RT).•Treatment with 90 mg avasopasem manganese improved eGFR 3, 6 and 12 months after cisplatin treatment.•Renal recovery biomarker, epithelial growth factor (EGF) was elevated in patients treated with avasopasem as early as day 22 of treatment.
Iron Acute kidney disease Avasopasem manganese Chronic kidney disease Cisplatin eGFR Epithelial growth factor GC4419 Kidney injury Radiation Superoxide dismutase mimetic

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