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AnemiaPhase 2NCT03054337

Dose-Finding Study of Vadadustat in Japanese Subjects With Anemia Secondary to Non-Dialysis Dependent Chronic Kidney Disease (NDD-CKD)

A Phase 2 study testing Vadadustat in people with Anemia and Non-dialysis Dependent Chronic Kidney Disease, run by Akebia Therapeutics at 18 sites in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a Phase 2, randomized, double-blind, placebo-controlled, dose-finding study to assess the efficacy, safety, tolerability, pharmacokinetic (PK), and pharmacodynamic (PD) of orally administered vadadustat in Japanese participants with anemia secondary to Non-dialysis Dependent Chronic Kidney Disease (NDD-CKD). Read more about this study

Who is it for?
Ages 20 years and older
What is being tested?
Vadadustat
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
51 participants
Where
18 sitesJapan
Study dates
Oct 2016to 28 Aug 2017
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male and female Japanese participants ≥20 years of age
  • Diagnosis of chronic kidney disease (CKD) based on an estimated glomerular filtration rate ≤60 milliliters per minute per 1.73 meters squared (mL/min/1.73 m^2)
  • Hemoglobin (Hb) ≤10.5 grams per deciliter (g/dL)
  • Not currently being treated with dialysis and not expected to start dialysis within 3 months of screening

Who cannot join

  • Anemia due to a cause other than CKD or presence of active bleeding or recent blood loss
  • Sickle cell disease, myelodysplastic syndromes, bone marrow fibrosis, hematologic malignancy, myeloma, hemolytic anemia, thalassemia, or pure red cell aplasia
  • Red blood cell transfusion within 4 weeks prior to or during screening
  • Intravenous iron within 4 weeks prior to or during screening
  • Any use of erythropoiesis-stimulating agents within 6 weeks prior to or during screening

Trial locations and contacts

18 sites in 1 country.

18 sites in 1 country

Japan18 sites
  • Study site

    Aichi

  • Study site

    Chiba

  • Study site

    Ehime

  • Study site

    Gunma

  • Study site

    Hiroshima

  • Study site

    Hokkaido

  • Study site

    Hyōgo

  • Study site

    Ibaraki

  • Study site

    Kanagawa

  • Study site

    Nagano

  • Study site

    Nara

  • Study site

    Niigata

  • Study site

    Ōita

  • Study site

    Okayama

  • Study site

    Okinawa

  • Study site

    Osaka

  • Study site

    Shiga

  • Study site

    Tokushima

Other trials in Japan

About this study

Official title: Phase 2, Randomized, Double-Blind, Placebo Controlled, Dose-Finding Study to Assess the Efficacy, Safety, Pharmacokinetics, and Pharmacodynamics of Vadadustat in Japanese Subjects With Anemia Secondary to Non-Dialysis Dependent Chronic Kidney Disease (NDD-CKD)

This is a Phase 2, randomized, double-blind, placebo-controlled, dose-finding study to assess the efficacy, safety, tolerability, pharmacokinetic (PK), and pharmacodynamic (PD) of orally administered vadadustat in Japanese participants with anemia secondary to Non-dialysis Dependent Chronic Kidney Disease (NDD-CKD).

Being tested
Vadadustat, Placebo
Keywords
Anemia, kidney, non-dialysis dependent chronic kidney disease, CKD, NDD-CKD, renal, vadadustat, AKB-6548, hypoxia-inducible factor, hypoxia-inducible factor (HIF), HIF, prolyl-hydroxylase inhibitor (PHI), PHI, Japan, Japanese, Akebia (AKB)
Medical subject headings
Anemia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • VadadustatDrug

    Also called AKB-6548

  • PlaceboDrug

Study groups in NCT03054337
Study groupRoleWhat they receive
Vadadustat, Dose 1ExperimentalDaily oral dose
Receives: Drug: Vadadustat
Vadadustat, Dose 2ExperimentalDaily oral dose
Receives: Drug: Vadadustat
Vadadustat, Dose 3ExperimentalDaily oral dose
Receives: Drug: Vadadustat
PlaceboPlacebo comparatorDaily oral dose
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean Change in Hemoglobin (Hb) Levels From Pre-treatment to the End of the Primary Efficacy Period

    The pre-treatment value for Hb was defined as the average of 2 values obtained prior to treatment, i.e., the qualifying screening value and the Baseline value. Change from Pre-treatment was calculated as the Week 6 value minus the Pre-treatment value.

    Measured: Pre-treatment; Week 6

Secondary outcomes (25)
  1. Time to Reach the Target Hb Level of 10.0 to 12.0 g/dL From Baseline up to Week 16

    Time for this analysis was measured from Day 1 (Baseline) through the point in time during either the Primary Efficacy Period or the Dose Adjustment and Maintenance Period when a participant's Hb level achieved the target range of 10.0 to 12.0 g/dL.

    Measured: from Baseline up to Week 16

  2. Mean Hb Levels at the End of the Primary Efficacy Period

    Data are reported as mean of the actual Week 6 values.

    Measured: up to Week 6

  3. Mean Hb Levels at the End of the Dose Adjustment and Maintenance Period

    Data are reported as mean of the actual Week 16 values.

    Measured: up to Week 16

  4. Number of Participants Who Achieved the Target Hb Level of 10.0 to 12.0 g/dL at the End of the Dose Adjustment and Maintenance Period

    Measured: up to Week 16

  5. Mean Change in Hb Between Pre-treatment and the End of the Dose Adjustment and Maintenance Period

    The pre-treatment value for Hb was defined as the average of 2 values obtained prior to treatment, i.e., the qualifying screening value and the Baseline value. Change from Pre-treatment was calculated as the Week 16 value minus the Pre-treatment value.

    Measured: Pre-treatment; Week 16

  6. Mean Change in Red Blood Cell (RBC) Count and Absolute Reticulocyte Count From Baseline to the End of the Primary Efficacy Period

    Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

    Measured: Baseline; Week 6

  7. Mean Change in RBC Count and Absolute Reticulocyte Count From Baseline to the End of the Dose Adjustment and Maintenance Period

    Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

    Measured: Baseline; Week 16

  8. Mean Change in Hematocrit and Reticulocytes From Baseline to the End of the Primary Efficacy Period

    Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

    Measured: Baseline; Week 6

  9. Mean Change in Hematocrit and Reticulocytes From Baseline to the End of the Dose Adjustment and Maintenance Period

    Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

    Measured: Baseline; Week 16

  10. Mean Change in Iron and Total Iron Binding Capacity (TIBC) From Baseline to the End of the Primary Efficacy Period

    Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

    Measured: Baseline; Week 6

  11. Mean Change in Iron and TIBC From Baseline to the End of the Dose Adjustment and Maintenance Period

    Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

    Measured: Baseline; Week 16

  12. Mean Change in Transferrin Saturation (TSAT) From Baseline to the End of the Primary Efficacy Period

    Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

    Measured: Baseline; Week 6

  13. Mean Change in TSAT From Baseline to the End of the Dose Adjustment and Maintenance Period

    Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

    Measured: Baseline; Week 16

  14. Mean Change in Ferritin and Hepcidin From Baseline to the End of the Primary Efficacy Period

    Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

    Measured: Baseline; Week 6

  15. Mean Change in Ferritin and Hepcidin From Baseline to the End of the Dose Adjustment and Maintenance Period

    Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

    Measured: Baseline; Week 16

  16. Number of Participants Who Required Rescue With Erythropoiesis-stimulating Agents (ESAs) From Baseline to the End of the Primary Efficacy Period

    ESA rescue is defined as participants with ESA administration and 1) the participant experienced a clinically significant worsening of their anemia or symptoms of anemia, 2) the participant's Hb level is <9.0 g/dL, and 3) reason for early study withdrawal of worsening of anemia requiring ESA rescue or blood transfusion. Participants who initiated rescue therapy (including ESAs) were required to stop study drug treatment and were discontinued from the study.

    Measured: Baseline; Week 6

  17. Number of Participants Who Required Rescue With ESAs From Baseline to the End of the Dose Adjustment and Maintenance Period

    ESA rescue is defined as participants with ESA administration and 1) the participant experienced a clinically significant worsening of their anemia or symptoms of anemia, 2) the participant's Hb level is <9.0 g/dL, and 3) reason for early study withdrawal of worsening of anemia requiring ESA rescue or blood transfusion. Participants who initiated rescue therapy (including ESAs) were required to stop study drug treatment and were discontinued from the study.

    Measured: Baseline; Week 16

  18. Number of Participants Who Required Rescue With a RBC Transfusion From Baseline to the End of the Primary Efficacy Period

    Participants who initiated rescue therapy (including RBC transfusion) were required to stop study drug treatment and were discontinued from the study.

    Measured: Baseline; Week 6

  19. Number of Participants Who Required Rescue With a RBC Transfusion From Baseline to the End of the Dose Adjustment and Maintenance Period

    Participants who initiated rescue therapy (including RBC transfusion) were required to stop study drug treatment and were discontinued from the study.

    Measured: Baseline; Week 16

  20. Number of the Participants With the Indicated Number of Dose Adjustments From Baseline to the End of the Dose Adjustment and Maintenance Period

    Increases in dose were not allowed during the 6-week Primary Efficacy Period.

    Measured: Baseline to Week 16

  21. Number of Participants Who Maintained Iron Sufficiency From Baseline to Week 6

    Iron sufficiency was defined as ferritin ≥50 ng/mL and TSAT ≥20%.

    Measured: Baseline to Week 6

  22. Number of Participants Who Maintained Iron Sufficiency From Baseline to Week 16

    Iron sufficiency was defined as ferritin ≥50 ng/mL and TSAT ≥20%.

    Measured: Baseline to Week 16

  23. Plasma Concentration Profile of Vadadustat and Its Metabolites Using a Pre-dose Sample From Week 4

    Blood samples were collected for analysis.

    Measured: Week 4, pre-dose

  24. Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (SAEs) in the Primary Efficacy Period

    An adverse event (AE) was defined as any untoward medical occurrence (including a clinically significant abnormal laboratory finding) that occurred in the protocol-specified AE reporting period. An AE included medical conditions, signs, and symptoms not previously observed in the participant that emerged during the protocol-specified AE reporting period, including signs or symptoms associated with pre-existing underlying conditions that were not present prior to the AE reporting period. An AE that met one or more of the following criteria or outcomes was classified as serious: death; life-threatening; in-patient hospitalization or prolongation of existing hospitalization; persistent or significant disability/ incapacity; congenital anomaly/birth defect; was considered a medically important event not meeting the above criteria, but which could jeopardize a participant, or could require medical or surgical intervention to prevent one of the criteria listed in this definition.

    Measured: up to Week 6

  25. Number of Participants With TEAEs and Treatment-emergent SAEs in the Dose Adjustment and Maintenance Period

    An AE was defined as any untoward medical occurrence (including a clinically significant abnormal laboratory finding) that occurred in the protocol-specified AE reporting period. An AE included medical conditions, signs, and symptoms not previously observed in the participant that emerged during the protocol-specified AE reporting period, including signs or symptoms associated with pre-existing underlying conditions that were not present prior to the AE reporting period. An AE that met one or more of the following criteria or outcomes was classified as serious: death; life-threatening; in-patient hospitalization or prolongation of existing hospitalization; persistent or significant disability/incapacity; congenital anomaly/birth defect; was considered a medically important event not meeting the above criteria, but which could jeopardize a participant, or could require medical or surgical intervention to prevent one of the criteria listed in this definition.

    Measured: up to Week 16

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Feb 2017
  2. Study startOct 2016
  3. Primary completion4 Jul 2017
  4. Study completion28 Aug 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
51 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03054337
Sponsor's protocol ID
AKB-6548-CI-0021
Status last verified
Mar 2021
First submitted
13 Feb 2017
Last updated
8 Apr 2021
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • 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.

    PubMed 36005278

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Vadadustat in people with Anemia and Non-dialysis Dependent Chronic Kidney Disease, run by Akebia Therapeutics at 18 sites in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Apr 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 18 sites in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 8 Apr 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean Change in Hemoglobin (Hb) Levels From Pre-treatment to the End of the Primary Efficacy Period (time frame: Pre-treatment; Week 6). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03054337, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Apr 2021.

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Clinical Trial NCT03054337 | AzTrials