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Ferric

Phase 3

Chronic Kidney Disease | Small molecule | Hematology |Akebia Therapeutics, Inc.|Last Updated: Aug 1, 2018

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDBiomarker
Total Trials1
Total Enrollment200

FDA Designations

No designations recorded

Clinical trial landscape

Ferric · 6 trials · 11 indications

Phase 3 4Phase 2 2
NCT02492620Ferric Citrate for the Transition From CKD Stage 4/5 to CKD Stage 5DChronic Kidney Disease
COMPLETED200 Analytics
NCT02268994KRX-0502 (Ferric Citrate) for the Treatment of IDA in Adult Subjects With NDD-CKDAnemia of Chronic Kidney Disease
COMPLETED234 Analytics
NCT01554982A Long-Term Safety Extension Trial of Ferric Citrate in Patients With End-Stage Renal Disease (ESRD) on DialysisEnd Stage Renal Disease
COMPLETED168 Analytics
NCT01074125A 4-Week Dose-Ranging and Efficacy Trial of KRX-0502 (Ferric Citrate) in Patients With End-Stage Renal DiseaseHyperphosphatemia
COMPLETED154 Analytics
PHASE3COMPLETED
Ferric Citrate for the Transition From CKD Stage 4/5 to CKD Stage 5D
Chronic Kidney DiseaseUnlock trial analytics
PHASE3COMPLETED
KRX-0502 (Ferric Citrate) for the Treatment of IDA in Adult Subjects With NDD-CKD
Anemia of Chronic Kidney DiseaseUnlock trial analytics
PHASE3COMPLETED
A Long-Term Safety Extension Trial of Ferric Citrate in Patients With End-Stage Renal Disease (ESRD) on Dialysis
End Stage Renal DiseaseUnlock trial analytics
PHASE3COMPLETED
A 4-Week Dose-Ranging and Efficacy Trial of KRX-0502 (Ferric Citrate) in Patients With End-Stage Renal Disease
HyperphosphatemiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Serum phosphate value prior to starting renal replacement therapy
baseline
Percentage of Subjects Achieving an Increase in Hemoglobin of ≥1.0 g/dL at Any Time Point Between Baseline and the End of the 16-week Randomized Period
Week 16

Efficacy analyses were performed for the Intention-to-treat (ITT) population, the population consisted of all subjects who were randomized, had a baseline laboratory value, took at least 1 dose of study drug, and had at least 1 post-baseline laboratory assessment during the randomized period.

Safety Parameters
48 Weeks

Safety was assessed by recording and monitoring adverse events (AEs), serious adverse events (SAEs), and sequential laboratory data. Rates of AEs were summarized by system organ class, preferred term, severity, and suspected relationship to KRX-0502 (ferric citrate).

Change in Serum Phosphorus From Baseline to End of Treatment
Baseline and day 28

Mean change from baseline was calculated separately for each treatment arm (LOCF)

Change in Transferrin Saturation (TSAT) From Baseline to End of Treatment
12 Weeks

The difference in TSAT between the value at the end of treatment (week 12) minus the baseline measurement.

Change in Serum Phosphorus Levels From Baseline to End of Treatment
12 Weeks

The difference in serum phosphorus between the value at the end of treatment (week 12) minus the baseline measurement.

The Difference in Serum Phosphorus Between Baseline (Day 0) and End of Treatment (Day 28)
28 days

Secondary Endpoints

Serum hemoglobin prior to starting renal replacement therapy
baseline
Serum transferrin saturation prior to starting renal replacement therapy
baseline
Serum fibroblast growth factor 23 prior to starting renal replacement therapy
baseline
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Ferric CitrateACTIVE_COMPARATORFerric citrate (FC) will be supplied as tablets containing 210mg of ferric iron (as 1g ferric citrate) to those subjects randomized to FC. These participants will be initiated on study drug with a fixed dose of FC beginning with 2 tablet per meal.
Standard of Care (SOC)NO_INTERVENTIONParticipants may receive open-label, non-FC phosphate binders at the discretion of their treating physician. During the Dialysis Period, dose of phosphate binders, use of ESA, intravenous iron and blood transfusions will be at the discretion of the primary treating nephrologist. Participants assigned to the SOC treatment arm may not receive FC at any point during the study.
KRX-0502 (ferric citrate)EXPERIMENTAL1 g of KRX-0502 (ferric citrate) containing approximately 210 mg of ferric iron
PlaceboPLACEBO_COMPARATORMatching Placebo
1 g/dayEXPERIMENTAL1 g/day KRX-0502 (ferric citrate)
6 g/dayEXPERIMENTAL6 g/day KRX-0502 (ferric citrate)
8 g/dayEXPERIMENTAL8 g/day KRX-0502 (ferric citrate)

Interventions

NameTypeDescription
Ferric CitrateDRUGAuryxia (ferric citrate) is a non calcium based phosphate binder indicated for the control of serum phosphorus levels in patients with chronic kidney disease on dialysis
PlaceboDRUGMatching placebo
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Age \>18 years at screening visit 2. Serum phosphate \> or equal to 3.0 mg/dL obtained at screening 3. CKD with eGFR \< or equal to 20 mL/min obtained at screening\* 4. Hemoglobin (Hgb) \>8.0 g/dL obtained at screening 5. TSAT \<55% obtained at screening 6. Females of child b...

Countries:United StatesPuerto Rico
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Frequently asked questions about Ferric

What is Ferric used for?

Ferric is an investigational small molecule being developed for End Stage Renal Disease, Chronic Kidney Disease, Hyperphosphatemia, Anemia of Chronic Kidney Disease, and Iron Deficiency. It is being studied in patients with kidney disease to manage serum phosphorus and iron deficiency.

Who makes Ferric?

Ferric is being developed by Akebia Therapeutics, Inc., a biopharmaceutical company traded on the NASDAQ under the ticker AKBA. The company is conducting clinical trials to evaluate Ferric in patients with kidney disease and related conditions.

What phase is Ferric in?

Ferric is in Phase 3 clinical development. It has completed multiple trials, including Phase 2 and Phase 3 studies, but it remains investigational and has not been approved by regulatory authorities. Its development is ongoing.

What clinical trials is Ferric in?

Ferric has been studied in several completed trials, including NCT01554982, a long-term safety extension in End Stage Renal Disease patients on dialysis, and NCT01736397, a Phase 2 study in anemic Chronic Kidney Disease patients not on dialysis.

Is Ferric the same as KRX-0502?

Yes, Ferric is also known as KRX-0502. A Phase 3 trial, NCT02268994, evaluated KRX-0502 (Ferric Citrate) for the treatment of Iron Deficiency Anemia in adult subjects with non-dialysis dependent Chronic Kidney Disease.