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CTRI Number  CTRI/2022/06/043396 [Registered on: 21/06/2022] Trial Registered Prospectively
Last Modified On: 15/09/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group, Placebo Controlled Trial 
Public Title of Study   A study to compare the effectiveness and safety of Atrasentan to placebo in patients with IgA nephropathy (IgAN) at risk of progressive loss of renal function 
Scientific Title of Study   A Phase 3, Randomized, Double-blind, Placebo-controlled Study of Atrasentan in Patients with IgA Nephropathy at Risk of Progressive Loss of Renal Function. (The ALIGN Study) 
Trial Acronym   
Secondary IDs if Any
Modification(s)  
Secondary ID  Identifier 
151085  Other 
2020-003084-26  EudraCT 
CHK01-01 Amd 3.1 IN dated 12 May 2022  Protocol Number 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name   
Designation   
Affiliation   
Address 




 
Phone    
Fax    
Email    
 
Details of Contact Person
Scientific Query

Modification(s)  
Name  Shweta Pradhan 
Designation  Head Clinical Operations 
Affiliation  IQVIA RDS (India) Private Limited 
Address  Omega Embassy Tech Square, Marathahalli - Sarjapura, Outer Ring Road, Kadubeesanahalli

Bangalore
KARNATAKA
560103
India 
Phone  9513774664  
Fax    
Email  shweta.pradhan@iqvia.com  
 
Details of Contact Person
Public Query

Modification(s)  
Name  Shweta Pradhan 
Designation  Head Clinical Operations 
Affiliation  IQVIA RDS (India) Private Limited 
Address  Omega Embassy Tech Square, Marathahalli - Sarjapura, Outer Ring Road, Kadubeesanahalli

Bangalore
KARNATAKA
560103
India 
Phone  9513774664  
Fax    
Email  shweta.pradhan@iqvia.com  
 
Source of Monetary or Material Support  
Chinook Therapeutics U.S., Inc. Seattle, WA 98109 
 
Primary Sponsor  
Name  Chinook Therapeutics  
Address  U.S., Inc. Seattle, WA 98109 
Type of Sponsor  Pharmaceutical industry-Global 
 
Details of Secondary Sponsor  
Name  Address 
IQVIA RDS India Private Limited  Omega Embassy Tech Square Marathahalli Sarjapur Outer Ring Road Kadubeesanahalli Bangalore KA 560103. 
 
Countries of Recruitment     Argentina
Australia
Brazil
Canada
China
Colombia
Czech Republic
France
Germany
Hong Kong
India
Ireland
Italy
Japan
New Zealand
Poland
Portugal
Republic of Korea
Spain
Taiwan
United Kingdom
United States of America  
Sites of Study
Modification(s)  
No of Sites = 6  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Suceena Alexander   Christian Medical College  Nephrology Department, 1st floor A Block, Christian Medical College Ranipet Campus, Kilminnal Village, Ranipet - 632517, Tamil Nadu, India
Vellore
TAMIL NADU 
9662490598

suceena@gmail.com 
Dr Binoj Panekkatil  Government Medical College Kozhikode  Department of Nephrology Government Medical College Campus, Medical College Junction, 17, Mavoor Road, Near Police Station
Kozhikode
KERALA 
9809955936

Dr.binojnephrocmc@gmail.com 
Dr Pinaki Mukhop adhyay  Nil Ratan Sircar Medical College & Hospital  138 AJC Bose Road Kolkata 700014
Kolkata
WEST BENGAL 
9231978078

drpinaki@yahoo.com 
Dr Manisha Sahay  Osmania General Hospital  Department of Nephrology Afzalgunj Hyderabad 500012
Hyderabad
TELANGANA 
9849097507

drmanishasahay@gmail.com 
Dr Atul Dattatraya Sajgure   Sahyadri Super Specialty Hospital  30 C Erandwane Karve Road Pune 411004
Pune
MAHARASHTRA 
9890676278

atulsajgure@yahoo.com 
Dr V Suresh Babu  Yashoda Hospital  behind Hari Hara Kalabhavan S P road Secunderabad – 500003
Hyderabad
TELANGANA 
9849304805

sukonda2007@gmail.com 
 
Details of Ethics Committee
Modification(s)  
No of Ethics Committees= 6  
Name of Committee  Approval Status 
Ethics Committee, N.R.S Medical College  Approved 
Institutional Ethics Committee, Govt Medical College  Approved 
Institutional Ethics Committee, Osmania Medical College Koti  Approved 
Institutional Review Board Christian Medical College   Approved 
Sahyadri Hospitals Limited Ethics Committee  Approved 
Yashoda Academy of Medical Education & Research IEC  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Approved/Obtained 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  , (1) ICD-10 Condition: N178||Other acute kidney failure,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Atrasentan (Active)  0.75 mg per tablet, 1 tablet QD, Oral Route for 132 weeks  
Comparator Agent  Placebo  Matching placebo film-coated round tablets, 1 tablet QD for 132 weeks 
 
Inclusion Criteria
Modification(s)  
Age From  18.00 Year(s)
Age To  99.00 Year(s)
Gender  Both 
Details  Age and Sex

Male and female subjects aged 18 and older at the time of signing the ICF prior to initiation of any study specific activities/procedures.

Types of Subjects and Disease Characteristics

Biopsy-proven IgAN that, in the opinion of the Investigator, is not due to secondary causes.
Biopsy could have occurred at any point in time prior to study.
A diagnostic report must be available for review by the Sponsor or designee.
Receiving a maximally tolerated and optimized dose of a RAS inhibitor that has been stable for at least 12 weeks prior to screening.
Investigator discretion should be used in determining maximally tolerated and optimized dose.
Subjects who are intolerant to RAS inhibitors are eligible but will not exceed Approximately 5 percent of total population randomized.
Total urine protein greater than or equal to 1g/day as measured via 24-hour urine collection at a central laboratory collected at Screening
eGFR of at least 30 mL per min per 1.73 mL at screening based on the CKD EPI equation.

Pregnancy and Contraception

All fertile men and WOCBP must be willing to abide with highly effective forms of contraception, as specified in the protocol, throughout the study and for 1 month afterward. In WOCBP, use of hormonal contraceptive agents must have been started at least 1 month prior to baseline.

Informed Consent

Willing and able to provide written informed consent and comply with all study visits and study procedures.

 
 
ExclusionCriteria 
Details  Subjects must meet NONE of the following exclusion criteria to be enrolled.

Concurrent diagnosis of another cause of chronic kidney disease including diabetic kidney disease or another primary glomerulopathy.

Clinical suspicion of rapidly progressive glomerulonephritis (RPGN) based on KDIGO guidelines or clinical suspicion of Henoch-Schonlein Purpura.

Clinical diagnosis of nephrotic syndrome

BNP value of more than 200 mg per mL at screening.

Platelet count less than 80,000 per µL at screening.

History of organ transplantation (subjects with history of corneal transplant are not excluded).

Use of systemic immunosuppressant medications including including systemic corticosteroids
(e.g., prednisone, prednisolone, etc.), mycophenolate, azathioprine, cyclosporine, tacrolimus, etc.; use of herbs such as Tripterygium Wilfordii Hook F, Caulis sinomenii and Sinomenium acutum; for more than 2 weeks in the past 3 months. Use of rituximab within the past 6 months.

Confirmed blood pressure more than 150 mmHg systolic or more than 95 mmHg diastolic based on a mean of 3 measurements obtained at screening.

Known history of heart failure or prior hospital admissions for conditions relating to fluid overload such as pulmonary edema, uncontrolled peripheral edema, pleural effusion, or ascites.

Known history of clinically significant liver disease or transaminase or bilirubin values more than twice the upper limit of normal. Subjects with treated hepatitis C can be considered for inclusion into the study upon consultation with the Sponsor’s Medical Monitor (or designee).

Hemoglobin below 9 g per dL at screening or prior history of blood transfusion for anemia within 3 months of screening.

History of malignancy unless cancer free for at least 5 years or nonmelanoma skin cancer not requiring ongoing treatment. A subject with curatively treated cervical carcinoma in situ is eligible for this study.

Pregnancy, breast feeding, or intent to become pregnant during the study period and at least 1 month afterward for females.

Intent to father a child or donate sperm during the study period and at least 1 month afterward for males.

Have received any investigational agent or approved treatment for IgAN (other than a
RAS inhibitor) including SGLT2 inhibitors within 1 month (or 5 half-lives of the agent, whichever is longer) prior to screening. If the investigational agent is a cytotoxic or immunosuppressive agent, then this washout period is 6 months.

Concurrent clinically significant, unstable, or uncontrolled cardiovascular, pulmonary, hepatic, renal, gastrointestinal, genitourinary, hematological, coagulation, immunological, endocrine/metabolic, or other medical disorder that, in the opinion of the Investigator or Sponsor’s Medical Monitor (or designee), might confound the results of the study or pose additional risk to the subject by their participation in the study.

History of an alcohol or illicit drug-related disorder within the past 3 years.

 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Centralized 
Blinding/Masking   Double Blind Double Dummy 
Primary Outcome  
Outcome  TimePoints 
To evaluate the effect of atrasentan versus placebo on proteinuria levels at Week 24  The change in proteinuria (urine protein: creatinine ratio [UPCR] based on 24-hour urine collection) from baseline to Week 24 
 
Secondary Outcome  
Outcome  TimePoints 
To evaluate the effect of atrasentan versus placebo on change from baseline to Week 136 (4 weeks post cessation of randomized treatment) in estimated glomerular filtration rate (eGFR)  Change from baseline to final study visit (Week 136) in eGFR, using the chronic kidney disease-epidemiology collaboration (CKD-EPI) creatinine equation. 
To compare 2-year on-treatment rates of change in eGFR between atrasentan and placebo (eGFR slope Week 12 to Week 120 of randomized treatment)   Rate of change in eGFR during 2 years on treatment as measured through a chronic slope calculated from values at Week 12 through to Week 120  
3. To compare the total on-study rates of change in eGFR between atrasentan and placebo (eGFR slope from baseline to Week 136).  Rate of change in eGFR during the study as measured through a total slope calculated from values at baseline to Week 136  
Additional efficacy outcomes   • Percent of subjects achieving proteinuria reduction to more than1 g per day at Week 24 and 40% decrease in UPCR from baseline.

• Percent of subjects experiencing at least a 30% reduction in eGFR or reach end-stage kidney disease (ESKD) during the study.

• Percent of subjects experiencing at least a 40% reduction in eGFR or reach ESKD during the study Safety.

 
 
Target Sample Size   Total Sample Size="320"
Sample Size from India="15" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   Phase 3 
Date of First Enrollment (India)   15/07/2022 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  15/03/2021 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="5"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Open to Recruitment 
Recruitment Status of Trial (India)  Closed to Recruitment of Participants 
Publication Details   Not applicable 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary  

This is a Phase 3, randomized, double-blind, placebo-controlled study to compare the efficacy and safety of atrasentan to placebo in subjects with IgAN at risk of progressive loss of renal function. All subjects participating in the study will be required to be on a maximally tolerated and stable dose of RAS inhibitor (physician choice) throughout the study.

The study is comprised of an optional pre-screening period, a screening period, a treatment period and a follow-up period. After signing an ICF for the study, subjects will be screened for study eligibility over 4 weeks. UPCR eligibility will be determined from first morning void (FMV) urine sample at Screening.

On Day 1, eligible subjects will be randomized 1:1 to receive atrasentan 0.75 mg QD or a matched placebo for 132 weeks. Randomization will be stratified according to region and screening UPCR levels.

At Week 1, subjects will have a telephone contact for safety evaluation. Subsequently and throughout the treatment period, subjects will be evaluated for change in proteinuria and eGFR from baseline; subjects will also be monitored for adverse events (AEs), clinically significant changes in laboratory assessments, ECG findings, and vital signs including weight and blood pressure. Pregnancy testing for women of childbearing potential (WOCBP) and counselling for men and women on study contraception requirements will also occur throughout the study. Subjects will be requested to monitor their weight weekly for the first 2 weeks on study drug. Following the end of treatment, subjects will have follow-up evaluations for safety and efficacy at Week 134 and 136 (EoS).

 
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