Diabetic Kidney DiseasePhase 4NCT07359027
Study of Roxadustat's Effect on Anemia in Patients With Diabetic Kidney Disease
A Phase 4 study testing Roxadustat in people with Diabetic Kidney Disease and Anemia, run by Second Xiangya Hospital of Central South University at 1 site in China.
Trial summary
This study is a single-arm, open-label, multicenter and prospective study, which is conducted to evaluate the effect of Roxadustat on anemia in subjects with DKD (stage III-IV). Read more about this study
- Who is it for?
- Ages 18 to 70 years
- Conditions the study is for
- Diabetic Kidney Disease, Anemia
- What is being tested?
- Roxadustat
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 124 participants
- Where
- 1 siteChina
- Study dates
- 2 Nov 2021to 8 Jul 2024
- Phase
- Phase 4
- Are there results?
- None posted in the registry
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 18 to 70 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Ages 18 to 60 years
- Subject has voluntarily signed and dated an informed consent form (ICF), approved by an EC, after the nature of the study has been explained and the subject has had the opportunity to ask questions.
- Diagnosed as Type 2 diabetic kidney disease (usually a clinical diagnosis made based on the presence of albuminuria and/or reduced eGFR in the absence of signs or symptoms of other primary causes of kidney damage), with KDOQI Stage 3 or 4 (an eGFR≧15 ml/min/1.73 m2 and <60 ml/min/1.73 m2 estimated using the CKD-EPI equation).
- The recent Hb value during the Screening Period, must be ≥7.0 g/dL and <10 g/dL.
- Either transferrin saturation (TSAT) ≥5% or serum ferritin ≥30 ng/mL during the screening period.
- No use of an erythropoiesis stimulating agent for 1 week before enrolment.
- ALT and AST ≤1.5 x ULN, and normal total bilirubin at screening visits.
- Body weight: 40 to 100 kg inclusive.
Who cannot join
- Subjects should not enter the study if any of the following exclusion criteria are fulfilled:
- Chronic kidney disease attribute to cause(s) other than diabetic kidney disease.
- eGFR<15ml ml/min/1.73 m2 or receiving dialysis or renal transplantation.
- Uncontrolled severe hypertension (SBP≧180mmHg, DBP≧100mmHg).
- Any clinically significant infection or evidence of an active underlying infection.
- New York Heart Association Class III or IV congestive heart failure.
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- Myocardial infarction, acute coronary syndrome, stroke, seizure, or a thromboembolic event (e.g., deep venous thrombosis or pulmonary embolism) within 24 weeks prior to Day 1.
- Diagnosis or suspicion (e.g., complex kidney cyst of Bosniak Category IIF or higher) of renal cell carcinoma on screening renal ultrasound.
- History of malignancy, except the following: cancers determined to be cured or in remission for ≥5 years, curatively resected basal cell or squamous cell skin cancers, or in situ cancer at any site.
- Chronic inflammatory disease that could impact erythropoiesis (e.g., SLE, rheumatoid arthritis, celiac disease).
- Clinically significant gastrointestinal bleeding.
- Known history of myelodysplastic syndrome, multiple myeloma, hereditary hematologic disease such as thalassemia, sickle cell anemia, pure red cell aplasia, or other known causes for anemia other than CKD, hemosiderosis, hemochromatosis, known coagulation disorder, or hypercoagulable condition.
- Any prior functioning organ transplant or a scheduled organ transplantation.
- Anticipated elective surgery that could lead to significant blood loss during the study period.
- Anticipated use of dapsone or acetaminophen (paracetamol) >2.0 g/day, or >500 mg per dose repeated every 6 hours for more than 3 days.
- Serum albumin <2.5 g/dL.
- Androgen, deferoxamine, deferiprone, or deferasirox therapy within 12 weeks prior to Day 1.
- Life expectancy of <6 months.
- Blood transfusion within 12 weeks prior to Day 1 or anticipated need for transfusion.
- IV iron supplement during the Screening Period and /or unwilling to withhold IV iron.
- Immune suppressive or systemic steroid treatment within 12 weeks prior to Day 1.
- History of alcohol or drug abuse within the past 2 years and inability to avoid consumption of more than >3 alcoholic beverages per day.
- Prior treatment with any HIF-PH inhibitor (HIF-PHI).
- Use of an investigational medication or treatment, participation in an interventional study.
- Women who are pregnant or breastfeeding.
- Women of childbearing potential and men with sexual partners of childbearing potential who are not using adequate contraception.
- Any medical condition that, in the opinion of the Investigator, may pose a safety risk to a subject in this study, may confound efficacy or safety assessment, or may interfere with study participation.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Clinical Observation of Roxadustat's Effect on Anemia in Patients With Diabetic Kidney Disease (Stage III-IV)
This study is a single-arm, open-label, multicenter and prospective study, which is conducted to evaluate the effect of Roxadustat on anemia in subjects with DKD (stage III-IV).
Read the detailed description
This study will consist of three study periods as follows:
Screening Period: 2 weeks Treatment Period: 24weeks Follow-up Period: 4 weeks
- Conditions
- Diabetic Kidney Disease, Anemia
- Being tested
- Roxadustat
- Medical subject headings
- Diabetic Nephropathies, Anemia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
RoxadustatDrug
Also called Roxadustat capsules
The starting dose of Roxadustat will be defined as per the China Package Insert. The recommended starting dose of roxadustat will depend on the body weight of the patient (based on patient's empty weight prior to instillation of dialysate): 70 mg (40 to < 60 kg) tiw or 100 mg (≥ 60 kg) tiw. The frequency of hemoglobin concentration test should be ≥ once every 4 weeks. The dose will be adjusted according to the following table every 4 weeks to achieve and/or maintain hemoglobin within the target range (10.0-12.0 g/dl).
| Study group | Role | What they receive |
|---|---|---|
| Roxadustat | Experimental | Oral Receives: Drug: Roxadustat |
What is being measured
The primary outcome is the main question the study is designed to answer.
Hb level
Change in average Hb level from baseline to week 24.
Measured: at week 0,2,4,8,12,16,20,24
Secondary outcomes (9)
serum transferrin level
Change in serum transferrin level from baseline to week 24
Measured: test at week 0,12 and 24
serum ferritin level
Change in serum ferritin level from baseline to week 24
Measured: test at week 0,12 and 24
serum TSAT level
Change in serum TSAT level from baseline to week 24
Measured: test at week 0,12 and 24
serum iron level
Change in serum iron level from baseline to week 24
Measured: test at week 0,12 and 24
FPG and PPG
Change in FPG and PPG levels from baseline to week 24
Measured: test at week 0,12 and 24
HbA1C level
Change in HbA1C level from baseline to week 24
Measured: test at week 0,12 and 24
Triglycerides, Cholesterol, HDL, LDL levels
Change in triglycerides, cholesterol, HDL, and LDL levels from baseline to week 24
Measured: test at week 0,12 and 24
apolipoprotein level
Change in apolipoprotein level from baseline to week 24
Measured: test at week 0,12 and 24
Physical parameters
SF-36 summary scores (PCS and MCS), physical functioning and vitality
Measured: test at week 0,12 and 24
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Jan 2026
- Study start2 Nov 2021
- Primary completion31 Dec 2022
- Study completion8 Jul 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Diabetic Kidney DiseaseStudies of the same condition, open and under way.
- More trials run by Second Xiangya Hospital of Central South UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 4
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 124 participants (actual)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Collaborators
- Xiangya Hospital of Central South University, The Third Xiangya Hospital of Central South University
- Responsible party
- Principal investigator, Li Xiao, Second Xiangya Hospital of Central South University
- Investigators
- Lin Sun, doctor, Principal investigator, Department of Nephrology, Second Xiangya hospital of central south university, Changsha, China.
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07359027
- Sponsor's protocol ID
- ESR-20-20537
- Status last verified
- Jan 2026
- First submitted
- 6 Sep 2022
- Last updated
- 26 Jan 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Chen N, Hao C, Peng X, Lin H, Yin A, Hao L, Tao Y, Liang X, Liu Z, Xing C, Chen J, Luo L, Zuo L, Liao Y, Liu BC, Leong R, Wang C, Liu C, Neff T, Szczech L, Yu KP. Roxadustat for Anemia in Patients with Kidney Disease Not Receiving Dialysis. N Engl J Med. 2019 Sep 12;381(11):1001-1010. doi: 10.1056/NEJMoa1813599. Epub 2019 Jul 24.
PubMed 31340089Chen N, Hao C, Liu BC, Lin H, Wang C, Xing C, Liang X, Jiang G, Liu Z, Li X, Zuo L, Luo L, Wang J, Zhao MH, Liu Z, Cai GY, Hao L, Leong R, Wang C, Liu C, Neff T, Szczech L, Yu KP. Roxadustat Treatment for Anemia in Patients Undergoing Long-Term Dialysis. N Engl J Med. 2019 Sep 12;381(11):1011-1022. doi: 10.1056/NEJMoa1901713. Epub 2019 Jul 24.
PubMed 31340116Yan Z, Xu G. A Novel Choice to Correct Inflammation-Induced Anemia in CKD: Oral Hypoxia-Inducible Factor Prolyl Hydroxylase Inhibitor Roxadustat. Front Med (Lausanne). 2020 Aug 6;7:393. doi: 10.3389/fmed.2020.00393. eCollection 2020.
PubMed 32850902
Study at a glance
From the registry record, last updated by the sponsor on 26 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Clinical Observation of Roxadustat's Effect on Anemia in Patients With Diabetic Kidney Disease (Stage III-IV)
- ClinicalTrials.gov ID
- NCT07359027
- Acronym / sponsor ID
- ESR-20-20537
- Conditions
- Diabetic Kidney Disease, Anemia
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 124 participants (actual)
- Lead sponsor
- Second Xiangya Hospital of Central South UniversityUniversity, hospital or other
- Collaborators
- Xiangya Hospital of Central South University, The Third Xiangya Hospital of Central South University
- Study start
- 2 Nov 2021 (actual)
- Primary completion
- 31 Dec 2022 (actual)
- Study completion
- 8 Jul 2024 (actual)
- First posted
- 22 Jan 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study is a single-arm, open-label, multicenter and prospective study, which is conducted to evaluate the effect of Roxadustat on anemia in subjects with DKD (stage III-IV).
Detailed description
This study will consist of three study periods as follows:
Screening Period: 2 weeks Treatment Period: 24weeks Follow-up Period: 4 weeks
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Roxadustat | Experimental | Drug: RoxadustatOral |
Who may qualify
- Ages
- 18 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- Ages 18 to 60 years
- Subject has voluntarily signed and dated an informed consent form (ICF), approved by an EC, after the nature of the study has been explained and the subject has had the opportunity to ask questions.
- Diagnosed as Type 2 diabetic kidney disease (usually a clinical diagnosis made based on the presence of albuminuria and/or reduced eGFR in the absence of signs or symptoms of other primary causes of kidney damage), with KDOQI Stage 3 or 4 (an eGFR≧15 ml/min/1.73 m2 and <60 ml/min/1.73 m2 estimated using the CKD-EPI equation).
- The recent Hb value during the Screening Period, must be ≥7.0 g/dL and <10 g/dL.
- Either transferrin saturation (TSAT) ≥5% or serum ferritin ≥30 ng/mL during the screening period.
Key exclusion criteria (27 listed)
- Subjects should not enter the study if any of the following exclusion criteria are fulfilled:
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| RoxadustatAlso: Roxadustat capsulesThe starting dose of Roxadustat will be defined as per the China Package Insert. The recommended starting dose of roxadustat will depend on the body weight of the patient (based on patient's empty weight prior to instillation of dialysate): 70 mg (40 to < 60 kg) tiw or 100 mg (≥ 60 kg) tiw. The frequency of hemoglobin concentration test should be ≥ once every 4 weeks. The dose will be adjusted according to the following table every 4 weeks to achieve and/or maintain hemoglobin within the target range (10.0-12.0 g/dl). | Drug | Roxadustat |
Primary outcome
Hb level
Time frame: at week 0,2,4,8,12,16,20,24
Change in average Hb level from baseline to week 24.
9 secondary outcomes
serum transferrin level
Time frame: test at week 0,12 and 24
serum ferritin level
Time frame: test at week 0,12 and 24
serum TSAT level
Time frame: test at week 0,12 and 24
serum iron level
Time frame: test at week 0,12 and 24
FPG and PPG
Time frame: test at week 0,12 and 24
HbA1C level
Time frame: test at week 0,12 and 24
Triglycerides, Cholesterol, HDL, LDL levels
Time frame: test at week 0,12 and 24
apolipoprotein level
Time frame: test at week 0,12 and 24
Physical parameters
Time frame: test at week 0,12 and 24
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Jan 2026.
- Background: PubMed 31340089Chen N, Hao C, Peng X, Lin H, Yin A, Hao L, Tao Y, Liang X, Liu Z, Xing C, Chen J, Luo L, Zuo L, Liao Y, Liu BC, Leong R, Wang C, Liu C, Neff T, Szczech L, Yu KP. Roxadustat for Anemia in Patients with Kidney Disease Not Receiving Dialysis. N Engl J Med. 2019 Sep 12;381(11):1001-1010. doi: 10.1056/NEJMoa1813599. Epub 2019 Jul 24.
- Background: PubMed 31340116Chen N, Hao C, Liu BC, Lin H, Wang C, Xing C, Liang X, Jiang G, Liu Z, Li X, Zuo L, Luo L, Wang J, Zhao MH, Liu Z, Cai GY, Hao L, Leong R, Wang C, Liu C, Neff T, Szczech L, Yu KP. Roxadustat Treatment for Anemia in Patients Undergoing Long-Term Dialysis. N Engl J Med. 2019 Sep 12;381(11):1011-1022. doi: 10.1056/NEJMoa1901713. Epub 2019 Jul 24.
- Background: PubMed 32850902Yan Z, Xu G. A Novel Choice to Correct Inflammation-Induced Anemia in CKD: Oral Hypoxia-Inducible Factor Prolyl Hydroxylase Inhibitor Roxadustat. Front Med (Lausanne). 2020 Aug 6;7:393. doi: 10.3389/fmed.2020.00393. eCollection 2020.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Lin Sun, doctor principal investigator
Department of Nephrology, Second Xiangya hospital of central south university, Changsha, China.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Roxadustat in people with Diabetic Kidney Disease and Anemia, run by Second Xiangya Hospital of Central South University at 1 site in China.
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 8 inclusion and 27 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 26 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. 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. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Hb level (time frame: at week 0,2,4,8,12,16,20,24). 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 NCT07359027, which also lists 3 linked publications.
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 26 Jan 2026.