GSK1278863 is an orally available, hypoxia-inducible factor - prolyl hydroxylase inhibitor, currently being investigated as a treatment for anemia associated with chronic kidney disease. GSK1278863 has been given as a once daily regimen in clinical studies to date. However, physicians in countries that use a three-times weekly hemodialysis schedule prefer to give the anemia medicine at the same time as the dialysis session. This study will test how well GSK1278863 can maintain hemoglobin levels when given three-times weekly, for 29 days. This study will describe the relationship between hemoglobin and GSK1278863 given three-times weekly. The data from this study will allow for conversion of once daily doses to three-times weekly doses.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
103
GSK1278863 will be supplied as a round, biconvex, 10 millimeter (mm) white film coated tablet with the unit dose strength of 5 mg and 25 mg.
GSK1278863 matching placebo will be supplied as a round, biconvex, 10 mm white film coated tablet.
GSK Investigational Site
Northridge, California, United States
GSK Investigational Site
San Dimas, California, United States
GSK Investigational Site
Pembroke Pines, Florida, United States
GSK Investigational Site
Greenbelt, Maryland, United States
GSK Investigational Site
Roseville, Michigan, United States
Change From Baseline in Hgb Levels at Day 29
Blood samples were collected from participants for measurement of Hgb values. Baseline is the average of Hgb measured at Week -2 and Day 1 visits. Change from Baseline at Day 29 was defined as post dose value at Day 29 minus Baseline value. The analysis was performed on intent-to-treat (ITT) Population which comprised of all randomized participants who received at least one dose of study treatment, had a Baseline and at least one corresponding on treatment assessment, including Hgb.
Time frame: Baseline and Day 29
Maximum Observed Change From Baseline in Plasma Erythropoietin (EPO)
Blood samples were collected at Day 1, Day 15 and Day 29 for pharmacodynamic analysis of effect of dapro three times weekly dose regimens on EPO. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. The change from Baseline at each given post-Baseline time point was calculated and the maximum change from Baseline was determined.
Time frame: Baseline and up to Day 29
Maximum Observed Percent Change From Baseline in Vascular Endothelial Growth Factor (VEGF)
Blood samples were collected at Day 1, Day 15 and Day 29 for pharmacodynamic analysis of effect of dapro three times weekly dose regimens on VEGF. Day 1 values were considered as Baseline values. The percent change from Baseline at each given post-Baseline time point was calculated (expressed as geometric mean) and the maximum percent change from Baseline was determined.
Time frame: Baseline and up to Day 29
Percent Change From Baseline in Hepcidin at Day 29
Blood samples were collected at Day 1, Day 15 and Day 29 for pharmacodynamic analysis of effect of dapro three times weekly dose regimens on hepcidin. Day 1 values were considered as Baseline values. The Percent change from Baseline at Day 29 post-Baseline time point was calculated and expressed as geometric mean and the maximum change from Baseline was determined.
Time frame: Baseline and Day 29
Change From Baseline in Hematocrit Levels
Blood samples were collected at Day 1, Day 15 and Day 29 for pharmacodynamic analysis of effect Dapro three times weekly dose regimens on hematocrit. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-dose visit values minus Baseline value. The change from Baseline at Day 29 post-Baseline time point was calculated.
Time frame: Baseline and Day 29
Change From Baseline in Red Blood Cell (RBC) Count
Blood samples were collected at Day 1, Day 15 and Day 29 for pharmacodynamic analysis of effect Dapro three times weekly dose regimens on RBC count. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-dose visit values minus Baseline value. The change from Baseline at Day 29 post-Baseline time point was calculated.
Time frame: Baseline and Day 29
Change From Baseline in Reticulocyte Count
Blood samples were collected at Day 1, Day 15 and Day 29 for pharmacodynamic analysis of effect Dapro three times weekly dose regimens on reticulocyte count. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. The change from Baseline at Day 29 post-Baseline time point was calculated.
Time frame: Baseline and Day 29
Change From Baseline in Reticulocyte Hemoglobin (CHr)
Blood samples were collected at Day 1, Day 15 and Day 29 for pharmacodynamic analysis of effect Dapro three times weekly dose regimens on CHr. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. The change from Baseline at Day 29 post-Baseline time point was calculated.
Time frame: Baseline and Day 29
Area Under the Curve (AUC) From Time Zero to the Time of the Last Quantifiable Concentration (AUC[0-t]) and AUC From Time Zero to Infinity (AUC[0-inf]) of Dapro
Blood samples were collected at indicated time points for pharmacokinetic (PK) analysis of dapro. The data from each PK sampling day was combined to generate a single profile, and normalized to a 24-hour period to create a "Day 1" profile for non-compartmental analysis (NCA). Metabolite plasma concentrations were analyzed but PK parameters could not be calculated as the metabolites were partially eliminated through dialysis and the dialysis start and end times were not consistent on both PK days. Therefore, a representative metabolite PK profile could not be generated. The analysis was performed on PK Population, which comprised of all participants from whom a PK sample has been obtained and analyzed. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles).
Time frame: Pre-dose on Day 1; 6-10 hours, 7-11 hours, 8-12 hours, 9-13 hours post dose on Day 15; pre-dose and 1, 2, 3 hours post-dose on Day 29
Maximum Observed Concentration of Dapro in Plasma (Cmax)
Blood samples were collected at indicated time points for PK analysis of dapro. The data from each PK sampling day was combined to generate a single profile, and normalized to a 24-hour period to create a "Day 1" profile for NCA. Metabolite plasma concentrations were analyzed but PK parameters could not be calculated as the metabolites were partially eliminated through dialysis and the dialysis start and end times were not consistent on both PK days. Therefore, a representative metabolite PK profile could not be generated.
Time frame: Pre-dose on Day 1; 6-10 hours, 7-11 hours, 8-12 hours, 9-13 hours post dose on Day 15; pre-dose and 1, 2, 3 hours post-dose on Day 29
Time to Reach Cmax (Tmax) and Apparent Terminal Half-life (t1/2) of Dapro
Blood samples were collected at indicated time points for PK analysis of dapro. The data from each PK sampling day was combined to generate a single profile, and normalized to a 24-hour period to create a "Day 1" profile for NCA. Metabolite plasma concentrations were analyzed but PK parameters could not be calculated as the metabolites were partially eliminated through dialysis and the dialysis start and end times were not consistent on both PK days. Therefore, a representative metabolite PK profile could not be generated. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles).
Time frame: Pre-dose on Day 1; 6-10 hours, 7-11 hours, 8-12 hours, 9-13 hours post dose on Day 15; pre-dose and 1, 2, 3 hours post-dose on Day 29
Number of Participants Who Discontinued Study Treatment
Reasons of study treatment discontinuation included adverse events (AEs), protocol deviation, participants reached protocol defined stopping criteria, physician decision and withdrawal by participants. Number of participants who discontinued study treatment are presented. Analysis was performed on Safety Population which comprised of all participants who received at least one dose of study treatment.
Time frame: Up to Day 43
Number of Participants With AEs and Serious Adverse Events (SAEs)
An AE is any untoward medical occurrence in a clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. SAE is defined as any untoward medical occurrence that, at any dose results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability, is a congenital anomaly/ birth effect, other situations and is associated with liver injury or impaired liver function.
Time frame: Up to Day 43
Sodium, Potassium, Glucose, Calcium, Phosphate Levels in Blood at Indicated Time Points
Serum sodium, potassium, glucose, corrected calcium and phosphate levels were assessed as a clinical chemistry laboratory parameter from Baseline up to follow up visit at Day 43. Day 1 values were considered as Baseline values. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles).
Time frame: Up to Day 43
Albumin and Protein Levels in Blood at Indicated Tme Points
Serum albumin and protein levels were assessed as a clinical chemistry laboratory parameter from Baseline up to follow up visit at Day 43. Day 1 values were considered as Baseline values. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles).
Time frame: Up to Day 43
Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST) and Alkaline Phosphatase (Alk. Phosph) Levels in Blood at Indicated Time Points
Serum ALT, AST and alk. phosph. levels were assessed as a clinical chemistry laboratory parameter from Baseline up to follow up visit at Day 43. Day 1 values were considered as Baseline values. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles).
Time frame: Up to Day 43
Bilirubin, Direct Bilirubin and Indirect Bilirubin Levels in Blood at Indicated Time Points
Serum bilirubin, direct bilirubin and indirect bilirubin levels were assessed as a clinical chemistry laboratory parameter from Baseline up to follow up visit at Day 43. Day 1 values were considered as Baseline values. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles).
Time frame: Up to Day 43
Change From Baseline in Sodium, Potassium, Glucose, Calcium and Phosphate Levels
Blood samples were collected from participants to evaluate clinical chemistry parameters including sodium, potassium, glucose, calcium and phosphate. Change from Baseline in clinical chemistry parameters at Day 15, Day 29 and Day 43 are presented. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Baseline and up to Day 43
Change From Baseline in Albumin and Protein Levels
Blood samples were collected from participants to evaluate clinical chemistry parameters including albumin and protein. Change from Baseline in clinical chemistry parameters at Day 15, Day 29 and Day 43 are presented. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Baseline and up to Day 43
Change From Baseline in ALT, AST, Alk. Phosph. Levels
Blood samples were collected from participants to evaluate clinical chemistry parameters including ALT, AST, Alk. phosph. Change from Baseline in clinical chemistry parameters at Day 15, Day 29 and Day 43 are presented. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Baseline and up to Day 43
Change From Baseline in Bilirubin, Direct Bilirubin, Indirect Bilirubin Levels
Blood samples were collected from participants to evaluate clinical chemistry parameters including bilirubin, direct bilirubin and indirect bilirubin. Change from Baseline in clinical chemistry parameters at Day 15, Day 29 and Day 43 are presented. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Baseline and up to Day 43
Leukocytes, Neutrophils, Basophils, Eosinophils,Lymphocytes, Monocytes, Platelet Levels in Blood at Indicated Time Points
Serum leukocytes, neutrophils, basophils, eosinophils, lymphocytes, monocytes and platelet levels were assessed as a clinical hematology laboratory parameter from Baseline up to follow up visit at Day 43. Day 1 values were considered as Baseline values. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles).
Time frame: Up to Day 43
Mean Corpuscular Hemoglobin (MCH) Levels in Blood at Indicated Time Points
Serum MCH levels were assessed as a clinical hematology laboratory parameter from Baseline up to follow up visit at Day 43. Day 1 values were considered as Baseline values. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles).
Time frame: Up to Day 43
Mean Corpuscular Hemoglobin Concentration (MCHC) Levels in Blood at Indicated Time Points
Serum MCHC levels were assessed as a clinical hematology laboratory parameter from Baseline up to follow up visit at Day 43. Day 1 values were considered as Baseline values. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles).
Time frame: Up to Day 43
Mean Corpuscular Volume (MCV) Levels in Blood at Indicated Time Points
Serum MCV levels were assessed as a clinical hematology laboratory parameter from Baseline up to follow up visit at Day 43. Day 1 values were considered as Baseline values. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles).
Time frame: Up to Day 43
Erythrocyte Distribution Width Levels in Blood at Indicated Time Points
Erythrocyte distribution width levels were assessed as a clinical hematology laboratory parameter from Baseline up to follow up visit at Day 43. Day 1 values were considered as Baseline values. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles).
Time frame: Up to Day 43
Change From Baseline in MCH Levels
Blood samples were collected from participants to evaluate clinical hematology parameters including MCH. Change from Baseline in clinical hematology parameters at Day 15, Day 29, Day 43 are presented. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Baseline and up to Day 43
Change From Baseline in MCHC Levels
Blood samples were collected from participants to evaluate clinical hematology parameters including MCHC. Change from Baseline in clinical hematology parameters at Day 15, Day 29, Day 43 are presented. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Baseline and up to Day 43
Change From Baseline in MCV Levels
Blood samples were collected from participants to evaluate clinical hematology parameters including MCV. Change from Baseline in clinical hematology parameters at Day 15, Day 29, Day 43 are presented. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Baseline and up to Day 43
Change From Baseline in Erythrocyte Distribution Width Levels
Blood samples were collected from participants to evaluate clinical hematology parameters including erythrocyte distribution width. Change from Baseline in clinical hematology parameters at Day 15, Day 29, Day 43 are presented. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Baseline and up to Day 43
Change From Baseline in Leukocytes, Neutrophils, Basophils, Eosinophils, Lymphocytes, Monocytes, Platelets Levels
Blood samples were collected from participants to evaluate clinical hematology parameters including leukocytes, neutrophils, basophils, eosinophils, lymphocytes, monocytes, platelets. Change from Baseline in clinical hematology parameters at Day 15, Day 29, Day 43 are presented. Day 1 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Baseline and up to Day 43
Number of Participants With Abnormal Electrocardiogram (ECG) Findings at Indicated Time Points
Single measurements of 12-lead ECG were obtained in supine position using an ECG machine that automatically calculates the heart rate and measures PR, QRS, QT interval. Number of participants who had abnormal non clinically significant (NCS) and abnormal clinically significant (CS) ECG findings at Baseline (Week -4) and Day 29 are presented.
Time frame: Up to Day 29
Change From Baseline in ECG Mean Heart Rate
Single measurements of 12-lead ECG were obtained in supine position using an ECG machine to measure HR. Week -4 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values at Day 29 minus Baseline value.
Time frame: Baseline and Day 29
Change From Baseline in ECG Parameters Including PR Interval, QRS Duration, QT Interval and QTcB
Single measurements of 12-lead ECG were obtained in supine position using an ECG machine to measure PR interval, QRS duration, QT interval and QTcB. Week -4 values were considered as Baseline values. Change from Baseline was calculated by subtracting post-Baseline visit values at Day 29 minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Baseline and Day 29
Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) Values at Pre-dialysis and Post-dialysis
Vital sign measurements including SBP and DBP were taken in a seated or semi-supine position in the dialysis chair at specific time points. SBP and DBP were measured pre-dialysis and post-dialysis. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Up to Day 43
Pulse Rate Values at Pre-dialysis and Post-dialysis
Vital sign measurements including pulse rate values were taken in a seated or semi-supine position in the dialysis chair. Pulse rate was measured pre-dialysis and post-dialysis. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Up to Day 43
Weight Values at Post-dialysis
Vital sign measurements including weight values were taken in a seated or semi-supine position in the dialysis chair. Weight was measured post-dialysis. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Up to Day 43
Change From Baseline in SBP and DBP Values at Pre-dialysis and Post-dialysis
Vital sign measurements including SBP and DBP were taken in a seated or semi-supine position in the dialysis chair. SBP and DBP were measured pre-dialysis and post-dialysis. Pre-dialysis Baseline value was defined as SBP and DBP value obtained pre-dialysis on Day 1. Post-dialysis Baseline value was defined as SBP and DBP value obtained post-dialysis at Week -2. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Up to Day 43
Change From Baseline in Pulse Rate Value at Pre-dialysis and Post-dialysis
Vital sign measurements including pulse rate were taken in a seated or semi-supine position in the dialysis chair. Pulse rate was measured pre-dialysis and post-dialysis. Pre-dialysis Baseline value was defined as pulse rate value obtained pre-dialysis on Day 1. Post-dialysis Baseline value was defined as pulse rate value obtained post-dialysis at Week -2. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Up to Day 43
Change From Baseline in Weight at Post-dialysis
Vital sign measurements including weight were taken in a seated or semi-supine position in the dialysis chair. Weight was measured post-dialysis. Post-dialysis Baseline value was defined as SBP and DBP value obtained post-dialysis at Week -2. Change from Baseline was calculated by subtracting post-Baseline visit values minus Baseline value. Only those participants with data available at the specified data points were analyzed (represented by n= X in the category titles).
Time frame: Up to Day 43
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
GSK Investigational Site
Kansas City, Missouri, United States
GSK Investigational Site
The Bronx, New York, United States
GSK Investigational Site
Calgary, Alberta, Canada
GSK Investigational Site
Ottawa, Ontario, Canada
GSK Investigational Site
Toronto, Ontario, Canada
...and 28 more locations