NCT03439137

Brief Summary

For hemodialysis subjects currently receiving ESAs with anemia associated with chronic kidney disease, demonstrate non-inferiority of MT-6548 compared to darbepoetin alfa using Hb value and evaluate long-term safety of MT-6548.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
323

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Feb 2018

Geographic Reach
1 country

28 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 14, 2018

Completed
Same day until next milestone

Study Start

First participant enrolled

February 14, 2018

Completed
6 days until next milestone

First Posted

Study publicly available on registry

February 20, 2018

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 12, 2018

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 16, 2019

Completed
1.7 years until next milestone

Results Posted

Study results publicly available

April 12, 2021

Completed
Last Updated

January 7, 2026

Status Verified

December 1, 2025

Enrollment Period

10 months

First QC Date

February 14, 2018

Results QC Date

March 15, 2021

Last Update Submit

December 15, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Mean Hb Level of Week 20 and Week 24

    Up to Week 24

Secondary Outcomes (3)

  • Mean Hb Level of Week 48 and Week 52

    Up to Week 52

  • Hb Level at Each Assessment Time Point

    Up to Week 52

  • Percentage of Subjects With Hb Level at Each Assessment Time Point Within the Target Range During the Treatment Period

    Up to Week 52

Study Arms (2)

MT-6548

EXPERIMENTAL
Drug: MT-6548Drug: Darbepoetin alfa-matching placebo

Darbepoetin alfa

ACTIVE COMPARATOR
Drug: Darbepoetin alfaDrug: MT-6548-matching placebo

Interventions

Intravenous administration

MT-6548

Oral tablet

Also known as: vadadustat, AKB-6548
MT-6548

Intravenous administration

Darbepoetin alfa

Oral tablet

Darbepoetin alfa

Eligibility Criteria

Age20 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of CKD
  • Receiving hemodialysis or hemodiafiltration 3 times a week for more than 12 weeks prior to the screening period, excluding receiving home dialysis or combination of peritoneal dialysis.
  • Being treated with ESAs for the recent 8 weeks prior to the screening period
  • Mean of the two screening Hb levels closest in time to the baseline visit is ≥9.5 g/dL and ≤12.0 g/dL
  • Fluctuation between the two Hb levels closest in time to the baseline visit during the screening period less than 1.5 g/dL
  • Serum ferritin ≥ 100 ng/mL, or TSAT ≥20% during the screening period
  • Folate and vitamin B12 ≥ lower limit of normal during the screening period

You may not qualify if:

  • Anemia due to a main cause other than CKD: sickle cell disease, myelodysplastic syndrome, bone marrow fibrosis, hematologic malignancy, hemolytic anemia, thalassemia, or pure red cell aplasia
  • Active bleeding or recent blood loss within 8 weeks prior to the screening period
  • RBC transfusion within 8 weeks prior to the screening period
  • Received testosterone enanthate or mepitiostane within 8 weeks prior to the screening period
  • AST, ALT, or total bilirubin \>2.5 x upper limit of normal during the screening period
  • Uncontrolled hypertension (diastolic blood pressure \>110 mm Hg or systolic blood pressure \>180 mm Hg) at the first day of the screening period and Day 1
  • Ophthalmic examinations during the screening period correspond to either of the following criteria;
  • No available fundal findings
  • Findings indicating the presence of active fundal disease
  • Severe heart failure (New York Heart Association Class IV)
  • Cerebrovascular disorder or acute coronary syndrome (hospitalization due to unstable angina or myocardial infarction), requiring hospitalization due to urgent percutaneous intervention for coronary or heart failure within 12 weeks prior to the screening period
  • New onset or recurrent event of deep vein thrombosis or pulmonary embolism within 12 weeks prior to the screening period
  • Current or history of hemosiderosis or hemochromatosis
  • History of prior organ transplantation or scheduled organ transplant, or prior transplantation of hematopoietic stem cell or bone marrow
  • Males and females of childbearing potential who are unwilling to use an acceptable method of contraception during the designated period (Males: during the study and 90 days after the last dose, females: during study and 30 days after the last dose)
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (28)

Research site

Aichi, Japan

Location

Research site

Chiba, Japan

Location

Research site

Fukui, Japan

Location

Research site

Fukuoka, Japan

Location

Research site

Fukushima, Japan

Location

Research site

Gunma, Japan

Location

Research site

Hiroshima, Japan

Location

Research site

Hokkaido, Japan

Location

Research site

Hyōgo, Japan

Location

Research site

Ibaraki, Japan

Location

Research site

Kagawa, Japan

Location

Research site

Kagoshima, Japan

Location

Research site

Kanagawa, Japan

Location

Research site

Kumamoto, Japan

Location

Research site

Kyoto, Japan

Location

Research site

Miyagi, Japan

Location

Research site

Nagano, Japan

Location

Research site

Nagasaki, Japan

Location

Research site

Okayama, Japan

Location

Research site

Okinawa, Japan

Location

Research site

Osaka, Japan

Location

Research site

Ōita, Japan

Location

Research site

Saitama, Japan

Location

Research site

Shiga, Japan

Location

Research site

Shizuoka, Japan

Location

Research site

Tokushma, Japan

Location

Research site

Tokyo, Japan

Location

Research site

Yamagata, Japan

Location

Related Publications (3)

  • Nangaku M, Kondo K, Ueta K, Kokado Y, Kaneko G, Matsuda H, Kawaguchi Y, Komatsu Y. Efficacy and safety of vadadustat compared with darbepoetin alfa in Japanese anemic patients on hemodialysis: a Phase 3, multicenter, randomized, double-blind study. Nephrol Dial Transplant. 2021 Aug 27;36(9):1731-1741. doi: 10.1093/ndt/gfab055.

  • Nangaku M, Ueta K, Nishimura K, Sasaki K, Hashimoto T. Factors affecting responsiveness of vadadustat in patients with anemia associated with chronic kidney disease: a post-hoc subgroup analysis of Japanese phase 3 randomized studies. Clin Exp Nephrol. 2024 May;28(5):391-403. doi: 10.1007/s10157-023-02432-z. Epub 2024 Mar 26.

  • Natale P, Palmer SC, Jaure A, Hodson EM, Ruospo M, Cooper TE, Hahn D, Saglimbene VM, Craig JC, Strippoli GF. Hypoxia-inducible factor stabilisers for the anaemia of chronic kidney disease. Cochrane Database Syst Rev. 2022 Aug 25;8(8):CD013751. doi: 10.1002/14651858.CD013751.pub2.

MeSH Terms

Conditions

Anemia

Interventions

vadadustatDarbepoetin alfa

Condition Hierarchy (Ancestors)

Hematologic DiseasesHemic and Lymphatic Diseases

Intervention Hierarchy (Ancestors)

ErythropoietinColony-Stimulating FactorsGlycoproteinsGlycoconjugatesCarbohydratesProteinsAmino Acids, Peptides, and Proteins

Results Point of Contact

Title
Clinical Trials, Information Desk
Organization
Tanabe Pharma Corporation

Study Officials

  • General Manager

    Tanabe Pharma Corporation

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 14, 2018

First Posted

February 20, 2018

Study Start

February 14, 2018

Primary Completion

December 12, 2018

Study Completion

July 16, 2019

Last Updated

January 7, 2026

Results First Posted

April 12, 2021

Record last verified: 2025-12

Locations