20-Week Repeat Oral Dose Study of AKB-6548 in Subjects With Chronic Kidney Disease and Anemia
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT01906489 |
Recruitment Status :
Completed
First Posted : July 24, 2013
Last Update Posted : November 14, 2018
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Anemia Chronic Kidney Disease | Drug: AKB-6548 Drug: Placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 210 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | Phase 2b Randomized, Double-Blind, Placebo-Controlled Study to Assess the Pharmacodynamic Response, Safety, and Tolerability to 20 Weeks of Oral Dosing of AKB-6548 in Subjects With Anemia Secondary to Chronic Kidney Disease (CKD), GFR Categories G3a-G5 (Stages 3, 4, AND 5) (Pre-Dialysis) |
Study Start Date : | July 2013 |
Actual Primary Completion Date : | October 2014 |
Actual Study Completion Date : | October 2014 |

Arm | Intervention/treatment |
---|---|
Experimental: AKB-6548 |
Drug: AKB-6548
Oral dose administered once daily for 20 weeks. Dose adjustment based on hemoglobin level as defined in the protocol. |
Placebo Comparator: Placebo |
Drug: Placebo
Oral placebo administered once daily for 20 weeks. Dose adjustment based on hemoglobin level as defined in the protocol. |
- Percent of subjects achieving or maintaining a hemoglobin response as defined in the protocol. [ Time Frame: 20 weeks ]
- Analysis/reanalysis of the primary endpoint with regard to hemoglobin control, need for rescue, baseline hemoglobin, and protocol-defined study groups. [ Time Frame: 20 weeks ]
- Hematologic response to include actual values and change from baseline in hematologic parameters. [ Time Frame: 20 weeks ]
- Need for transfusion and/or ESA rescue. [ Time Frame: 20 weeks ]
- Safety and tolerability measures to include assessments of adverse events, vital signs, ECGs, and laboratory assay results. [ Time Frame: 20 weeks of therapy, 4 week follow-up ]
- Iron metabolism to include actual values and change from baseline in iron indices. [ Time Frame: 20 weeks ]
- Iron utilization (both oral and intravenous). [ Time Frame: 20 weeks ]
- Concentration measurements of AKB-6548 and metabolites. [ Time Frame: Weeks 12 and 20 visits ]
- Neurocognitive and patient reported outcome measures. [ Time Frame: 20 weeks ]

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Ages Eligible for Study: | 18 Years to 82 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Key Inclusion Criteria:
- 18 to 82 years of age, inclusive
- Chronic Kidney Disease with a GFR category of G3a-G5 and not yet on dialysis
- eGFR ≥ 10 and ≤ 65 mL/minute/1.73 m2
- Anemia secondary to CKD with an ESA status and a Screening HGB as per protocol
- Iron replete with ferritin and TSAT levels as defined per protocol
Key Exclusion Criteria:
- BMI > 44.0 kg/m2
- Red blood cell transfusion within 11 weeks prior to the Screening visit
- Androgen therapy within the previous 21 days prior to the Screening visit
- Intravenous iron within the past 4 weeks prior to the Screening visit
- AST or ALT >1.8x ULN, alkaline phosphatase >2x ULN, or total bilirubin >1.5x ULN
- Screening ECG with QTc > 500 msec
- Uncontrolled hypertension
- Class III or IV congestive heart failure
- Myocardial infarction, acute coronary syndrome, or stroke within 6 months prior to the Screening visit

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01906489
United States, Arizona | |
Glendale, Arizona, United States | |
Tucson, Arizona, United States | |
United States, California | |
Azusa, California, United States | |
Chula Vista, California, United States | |
Downey, California, United States | |
El Centro, California, United States | |
La Mesa, California, United States | |
Long Beach, California, United States | |
Riverside, California, United States | |
Sacramento, California, United States | |
San Diego, California, United States | |
United States, Colorado | |
Arvada, Colorado, United States | |
Westminster, Colorado, United States | |
United States, Florida | |
Lauderdale Lakes, Florida, United States | |
Port Charlotte, Florida, United States | |
Tampa, Florida, United States | |
United States, Georgia | |
Augusta, Georgia, United States | |
Macon, Georgia, United States | |
United States, Idaho | |
Meridian, Idaho, United States | |
United States, Illinois | |
Evergreen Park, Illinois, United States | |
United States, Louisiana | |
Lafayette, Louisiana, United States | |
Shreveport, Louisiana, United States | |
United States, Michigan | |
Detroit, Michigan, United States | |
Lansing, Michigan, United States | |
Petoskey, Michigan, United States | |
Pontiac, Michigan, United States | |
United States, Missouri | |
Farmington, Missouri, United States | |
Kansas City, Missouri, United States | |
United States, Nevada | |
Las Vegas, Nevada, United States | |
United States, New Mexico | |
Albuquerque, New Mexico, United States | |
United States, New York | |
Flushing, New York, United States | |
Mineola, New York, United States | |
New Rochelle, New York, United States | |
Rosedale, New York, United States | |
United States, North Carolina | |
Asheville, North Carolina, United States | |
Charlotte, North Carolina, United States | |
Rocky Mount, North Carolina, United States | |
Wilmington, North Carolina, United States | |
United States, Ohio | |
Cincinnati, Ohio, United States | |
United States, South Carolina | |
Columbia, South Carolina, United States | |
United States, Tennessee | |
Knoxville, Tennessee, United States | |
United States, Texas | |
Arlington, Texas, United States | |
Austin, Texas, United States | |
Edinburg, Texas, United States | |
Houston, Texas, United States | |
San Antonio, Texas, United States | |
United States, Utah | |
Saint George, Utah, United States |
Study Director: | Akebia Therapeutics | Sponsor GmbH |
Responsible Party: | Akebia Therapeutics |
ClinicalTrials.gov Identifier: | NCT01906489 |
Other Study ID Numbers: |
AKB-6548-CI-0007 |
First Posted: | July 24, 2013 Key Record Dates |
Last Update Posted: | November 14, 2018 |
Last Verified: | November 2018 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
anemia chronic kidney disease CKD chronic renal insufficiency renal impairment erythropoietin kidney oral anemia treatment |
hemoglobin hypoxia-inducible factor HIF hypoxia-inducible factor prolyl-hydroxylase inhibitor HIF-PHI efficacy safety pharmacokinetics |
Kidney Diseases Renal Insufficiency, Chronic Anemia |
Hematologic Diseases Urologic Diseases Renal Insufficiency |