Effects of Bardoxolone Methyl on QT Interval in Healthy Volunteers

Background: Bardoxolone methyl has been shown to increase eGFR in several clinical trials, including a phase 3 trial in patients with type 2 diabetes and stage 4 CKD (BEACON), which was terminated early due to an increase in heart failure events in bardoxolone methyl-treated patients. A separate, “t...

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Published inCardiorenal medicine Vol. 9; no. 5; pp. 326 - 333
Main Authors Chin, Melanie P., Rich, Shannon, Goldsberry, Angie, O'Grady, Megan, Meyer, Colin J.
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LanguageEnglish
Published Basel, Switzerland S. Karger AG 01.01.2019
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Abstract Background: Bardoxolone methyl has been shown to increase eGFR in several clinical trials, including a phase 3 trial in patients with type 2 diabetes and stage 4 CKD (BEACON), which was terminated early due to an increase in heart failure events in bardoxolone methyl-treated patients. A separate, “thorough QT” study was conducted in parallel with BEACON to evaluate the cardiovascular safety of bardoxolone methyl in healthy subjects. Methods: Subjects in the “thorough QT” study were randomized to receive bardoxolone methyl 20 mg (therapeutic dose) or 80 mg (supratherapeutic dose), placebo, or moxifloxacin (400 mg; an active comparator). ECG results and supine blood pressure measurements were analyzed. The effects of bardoxolone methyl on QT interval changes from baseline were quantified compared to the effect of placebo by calculating mean, time-matched, placebo-corrected, baseline-adjusted QTcF values (ΔΔQTcF) after 6 days of daily administration of bardoxolone methyl. Results: The study was halted early due to emerging safety information from the BEACON trial; however, 142/179 patients received all doses of the study drug and completed the study. For both bardoxolone methyl-treated groups (20 and 80 mg), the upper limits of the 2-sided 90% confidence interval for ΔΔQTcF were less than the significance limit (10 ms) at all time points. Changes in blood pressure were similar in all treatment groups, and no serious adverse events were reported. Conclusions: In healthy subjects, treatment with 20 or 80 mg bardoxolone methyl did not affect the QTcF interval.
AbstractList Background: Bardoxolone methyl has been shown to increase eGFR in several clinical trials, including a phase 3 trial in patients with type 2 diabetes and stage 4 CKD (BEACON), which was terminated early due to an increase in heart failure events in bardoxolone methyl-treated patients. A separate, “thorough QT” study was conducted in parallel with BEACON to evaluate the cardiovascular safety of bardoxolone methyl in healthy subjects. Methods: Subjects in the “thorough QT” study were randomized to receive bardoxolone methyl 20 mg (therapeutic dose) or 80 mg (supratherapeutic dose), placebo, or moxifloxacin (400 mg; an active comparator). ECG results and supine blood pressure measurements were analyzed. The effects of bardoxolone methyl on QT interval changes from baseline were quantified compared to the effect of placebo by calculating mean, time-matched, placebo-corrected, baseline-adjusted QTcF values (ΔΔQTcF) after 6 days of daily administration of bardoxolone methyl. Results: The study was halted early due to emerging safety information from the BEACON trial; however, 142/179 patients received all doses of the study drug and completed the study. For both bardoxolone methyl-treated groups (20 and 80 mg), the upper limits of the 2-sided 90% confidence interval for ΔΔQTcF were less than the significance limit (10 ms) at all time points. Changes in blood pressure were similar in all treatment groups, and no serious adverse events were reported. Conclusions: In healthy subjects, treatment with 20 or 80 mg bardoxolone methyl did not affect the QTcF interval.
Bardoxolone methyl has been shown to increase eGFR in several clinical trials, including a phase 3 trial in patients with type 2 diabetes and stage 4 CKD (BEACON), which was terminated early due to an increase in heart failure events in bardoxolone methyl-treated patients. A separate, "thorough QT" study was conducted in parallel with BEACON to evaluate the cardiovascular safety of bardoxolone methyl in healthy subjects. Subjects in the "thorough QT" study were randomized to receive bardoxolone methyl 20 mg (therapeutic dose) or 80 mg (supratherapeutic dose), placebo, or moxifloxacin (400 mg; an active comparator). ECG results and supine blood pressure measurements were analyzed. The effects of bardoxolone methyl on QT interval changes from baseline were quantified compared to the effect of placebo by calculating mean, time-matched, placebo-corrected, baseline-adjusted QTcF values (ΔΔQTcF) after 6 days of daily administration of bardoxolone methyl. The study was halted early due to emerging safety information from the BEACON trial; however, 142/179 patients received all doses of the study drug and completed the study. For both bardoxolone methyl-treated groups (20 and 80 mg), the upper limits of the 2-sided 90% confidence interval for ΔΔQTcF were less than the significance limit (10 ms) at all time points. Changes in blood pressure were similar in all treatment groups, and no serious adverse events were reported. In healthy subjects, treatment with 20 or 80 mg bardoxolone methyl did not affect the QTcF interval.
Bardoxolone methyl has been shown to increase eGFR in several clinical trials, including a phase 3 trial in patients with type 2 diabetes and stage 4 CKD (BEACON), which was terminated early due to an increase in heart failure events in bardoxolone methyl-treated patients. A separate, "thorough QT" study was conducted in parallel with BEACON to evaluate the cardiovascular safety of bardoxolone methyl in healthy subjects.BACKGROUNDBardoxolone methyl has been shown to increase eGFR in several clinical trials, including a phase 3 trial in patients with type 2 diabetes and stage 4 CKD (BEACON), which was terminated early due to an increase in heart failure events in bardoxolone methyl-treated patients. A separate, "thorough QT" study was conducted in parallel with BEACON to evaluate the cardiovascular safety of bardoxolone methyl in healthy subjects.Subjects in the "thorough QT" study were randomized to receive bardoxolone methyl 20 mg (therapeutic dose) or 80 mg (supratherapeutic dose), placebo, or moxifloxacin (400 mg; an active comparator). ECG results and supine blood pressure measurements were analyzed. The effects of bardoxolone methyl on QT interval changes from baseline were quantified compared to the effect of placebo by calculating mean, time-matched, placebo-corrected, baseline-adjusted QTcF values (ΔΔQTcF) after 6 days of daily administration of bardoxolone methyl.METHODSSubjects in the "thorough QT" study were randomized to receive bardoxolone methyl 20 mg (therapeutic dose) or 80 mg (supratherapeutic dose), placebo, or moxifloxacin (400 mg; an active comparator). ECG results and supine blood pressure measurements were analyzed. The effects of bardoxolone methyl on QT interval changes from baseline were quantified compared to the effect of placebo by calculating mean, time-matched, placebo-corrected, baseline-adjusted QTcF values (ΔΔQTcF) after 6 days of daily administration of bardoxolone methyl.The study was halted early due to emerging safety information from the BEACON trial; however, 142/179 patients received all doses of the study drug and completed the study. For both bardoxolone methyl-treated groups (20 and 80 mg), the upper limits of the 2-sided 90% confidence interval for ΔΔQTcF were less than the significance limit (10 ms) at all time points. Changes in blood pressure were similar in all treatment groups, and no serious adverse events were reported.RESULTSThe study was halted early due to emerging safety information from the BEACON trial; however, 142/179 patients received all doses of the study drug and completed the study. For both bardoxolone methyl-treated groups (20 and 80 mg), the upper limits of the 2-sided 90% confidence interval for ΔΔQTcF were less than the significance limit (10 ms) at all time points. Changes in blood pressure were similar in all treatment groups, and no serious adverse events were reported.In healthy subjects, treatment with 20 or 80 mg bardoxolone methyl did not affect the QTcF interval.CONCLUSIONSIn healthy subjects, treatment with 20 or 80 mg bardoxolone methyl did not affect the QTcF interval.
Author Goldsberry, Angie
Meyer, Colin J.
Chin, Melanie P.
Rich, Shannon
O'Grady, Megan
AuthorAffiliation Product Development, Reata Pharmaceuticals, Irving, Texas, USA
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Issue 5
Keywords QT interval
Bardoxolone methyl
Chronic kidney diseases
Language English
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References_xml – reference: de Zeeuw D, Akizawa T, Audhya P, Bakris GL, Chin M, Christ-Schmidt H, et al.; BEACON Trial Investigators. Bardoxolone methyl in type 2 diabetes and stage 4 chronic kidney disease. N Engl J Med. 2013Dec;369(26):2492–503. 10.1056/NEJMoa1306033242064590028-4793
– reference: Serhan CN, Chiang N, Van Dyke TE. Resolving inflammation: dual anti-inflammatory and pro-resolution lipid mediators. Nat Rev Immunol. 2008May;8(5):349–61. 10.1038/nri2294184371551474-1733
– reference: Chin MP, Reisman SA, Bakris GL, O’Grady M, Linde PG, McCullough PA, et al.. Mechanisms contributing to adverse cardiovascular events in patients with type 2 diabetes mellitus and stage 4 chronic kidney disease treated with bardoxolone methyl. Am J Nephrol. 2014;39(6):499–508. 10.1159/000362906249034670250-8095
– reference: Oudiz RJ, Meyer C, Chin M, Feldman J, Goldsberry A, McConnell J, et al.. Bardoxolone Methyl Evaluation in Patients with Pulmonary Arterial Hypertension (PAH). Initial Data Report from LARIAT: A Phase 2 Study of Barodoxolone Methyl in PAH Patients on Stable Background Therapy. Chest. 2015;148:639A. 10.1378/chest.23458560012-3692
– reference: Pergola PE, Krauth M, Huff JW, Ferguson DA, Ruiz S, Meyer CJ, et al.. Effect of bardoxolone methyl on kidney function in patients with T2D and Stage 3b-4 CKD. Am J Nephrol. 2011;33(5):469–76. 10.1159/000327599215086350250-8095
– reference: Nangaku M, Shimazaki R, Akizawa T. Bardoxolone Methyl Improved GFR Measured by Standard Inulin Clearance: the TSUBAKI Study. J Am Soc Nephrol. 2017;28:B1.1046-6673
– reference: Ma R, Bumeister R, Stidham R, Kambuj P, Sprouse M, Ferguson D, et al.Bardoxolone Methyl (BARD). Germany: Inhibits Inflammatory Signaling in Cultured Mesangial Cells. Poster ERA-EDTA Meeting Munich; 2010.
– reference: Miller G, Bumeister R, Laidlaw J, Kambuj P, Probst B, Ferguson DA, et al.. Bardoxolone Methyl Transcriptionally Regulates Transaminase Levels and Increases Glutathione Levels. J Am Soc Nephrol. 2011;22:770A.1046-6673
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Snippet Background: Bardoxolone methyl has been shown to increase eGFR in several clinical trials, including a phase 3 trial in patients with type 2 diabetes and stage...
Bardoxolone methyl has been shown to increase eGFR in several clinical trials, including a phase 3 trial in patients with type 2 diabetes and stage 4 CKD...
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SubjectTerms Adolescent
Adult
Blood Pressure - drug effects
Dose-Response Relationship, Drug
Double-Blind Method
Drug Administration Schedule
Electrocardiography - drug effects
Female
Healthy Volunteers
Humans
Male
Middle Aged
Moxifloxacin - adverse effects
Moxifloxacin - pharmacology
Oleanolic Acid - administration & dosage
Oleanolic Acid - adverse effects
Oleanolic Acid - analogs & derivatives
Oleanolic Acid - pharmacology
Research Article
Young Adult
Title Effects of Bardoxolone Methyl on QT Interval in Healthy Volunteers
URI https://karger.com/doi/10.1159/000500736
https://www.ncbi.nlm.nih.gov/pubmed/31158840
https://www.proquest.com/docview/2235068951
https://pubmed.ncbi.nlm.nih.gov/PMC6751422
Volume 9
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