Spironolactone With Patiromer in the Treatment of Resistant Hypertension in Chronic Kidney Disease
AMBER
A Randomized, Double-Blind, Placebo Controlled, Parallel Group Study of Patiromer for the Enablement of Spironolactone Use for Blood Pressure Control in Patients With Resistant Hypertension and Chronic Kidney Disease
2 other identifiers
interventional
295
9 countries
40
Brief Summary
The purpose of this study is to determine if patiromer treatment in chronic kidney disease (CKD) subjects receiving spironolactone for the treatment of resistant hypertension will result in more persistent use of spironolactone through prevention of hyperkalemia and lead to improved blood pressure control compared with treatment with spironolactone alone (placebo).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Jan 2017
40 active sites
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
Study Start
First participant enrolled
January 23, 2017
CompletedFirst Submitted
Initial submission to the registry
March 1, 2017
CompletedFirst Posted
Study publicly available on registry
March 6, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 27, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
November 27, 2018
CompletedResults Posted
Study results publicly available
January 27, 2020
CompletedMay 12, 2021
May 1, 2021
1.8 years
March 1, 2017
November 27, 2019
May 10, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of Participants Remaining on Spironolactone at Week 12
The proportion of subjects remaining on spironolactone at Week 12 will be compared between treatment groups (spironolactone/patiromer versus spironolactone/placebo). Subjects who discontinued from the study early or discontinued study spironolactone prior to Week 12, for any reason, were considered as not having remained on spironolactone until Week 12.
At week 12
Secondary Outcomes (1)
Change in AOBP SBP From Baseline to Week 12 or Last Available AOBP SBP Prior to Addition of Any New BP Medications or Increase From Any Baseline BP Medications
From baseline to Week 12
Other Outcomes (7)
Change in AOBP SBP From Baseline to Week 12 Regardless of Increase in Antihypertensives
From baseline to Week 12
Central Serum Potassium Change From Baseline to Week 12 by Baseline Serum Potassium Category
From baseline to Week 12
Participants With Central Serum Potassium <5.5 mEq/L Over Time
From baseline to Week 12
- +4 more other outcomes
Study Arms (2)
Group 1 - Patiromer
EXPERIMENTALspironolactone + blinded patiromer
Group 2 - Placebo
EXPERIMENTALspironolactone + blinded placebo
Interventions
2 packets/day starting dose, administered orally
25 mg tablet/day starting dose, administered orally
Eligibility Criteria
You may qualify if:
- Age ≥ 18 years
- Taking at least three medications for blood pressure (one a diuretic)
- Uncontrolled high blood pressure
- Abnormal kidney function (with-eGFR, a measure of kidney function, of 25 - ≤ 45 mL/min/1.73m2
- Normal Blood serum Potassium in a specific range (4.3 - 5.1 mEq/L)
You may not qualify if:
- History of untreated known causes of high blood pressure, excluding kidney disease (not CKD)
- Inability to measure BP
- Not taking high blood pressure medications as prescribed medications
- Recent change in renal function (in the past 3 months) which has required hospitalization or dialysis
- Renal transplant
- History of cancer within past 12 months
- Recent cardiovascular event with last 3 months
- Clinically significant abnormalities of heart rhythm (ventricular arrhythmia or atrial fibrillation with uncontrolled heart rate)
- Inability to take study medication
- Alcoholism
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Relypsa, Inc.lead
Study Sites (40)
Investigator Site 1012
Hollywood, Florida, 33021, United States
Investigator Site 1023
Miami Lakes, Florida, 33014, United States
Investigator Site 1022
Chicago, Illinois, 60611, United States
Investigator Site 1402
Sofia, 1612, Bulgaria
Investiagor Site 2205
Zagreb, 10000, Croatia
Investigator Site 2201
Zagreb, 10000, Croatia
Investigator Site 2202
Zagreb, 10000, Croatia
Investigator Site 2203
Zagreb, 10000, Croatia
Investigator Site 3806
Tbilisi, 0102, Georgia
Investigator Site 3811
Tbilisi, 0112, Georgia
Investigator Site 3802
Tbilisi, 0144, Georgia
Investigator Site 3801
Tbilisi, 0159, Georgia
Investigator Site 3804
Tbilisi, 0159, Georgia
Investigator Site 3805
Tbilisi, 0159, Georgia
Investigator Site 3807
Tbilisi, 0159, Georgia
Investigator Site 3808
Tbilisi, 0159, Georgia
Investigator Site 3810
Tbilisi, 0159, Georgia
Investigator Site 3812
Tbilisi, 0159, Georgia
Investigator Site 3813
Tbilisi, 0159, Georgia
Investigator Site 3809
Tbilisi, 0186, Georgia
Investigator Site 4202
Göttingen, 37075, Germany
Investigator Site 4607
Balatonfüred, H-8230, Hungary
Investigator Site 4606
Budapest, H-1097, Hungary
Investigator Site 4611
Debrecen, 4032, Hungary
Investigator Site 4601
Hatvan, H-3000, Hungary
Investigator Site 4605
Kistarcsa, H-2143, Hungary
Investigator Site 4602
Miskolc, H-3529, Hungary
Investigator Site 4610
Miskolc, H-3530, Hungary
Investigator Site 4608
Mosonmagyaróvár, H-9200, Hungary
Investigator Site 7403
Johannesburg, South Africa
Investiagor Site 7809
Kharkiv, 61002, Ukraine
Investigator Site 7803
Kharkiv, 61006, Ukraine
Investigator Site 7808
Kharkiv, 61039, Ukraine
Investigator Site 7802
Kharkiv, 61103, Ukraine
Investigator Site 7805
Kiev, 03680, Ukraine
Investigator Site 7801
Kiev, 04114, Ukraine
Investigator Site 7804
Zaporizhzhia, 69001, Ukraine
Investigator Site 7807
Zaporizhzhia, 69118, Ukraine
Investigator Site 8202
Leicester, LE5 4QF, United Kingdom
Investigator Site 8205
London, Se5 9RS, United Kingdom
Related Publications (4)
Agarwal R, Rossignol P, Budden J, Mayo MR, Arthur S, Williams B, White WB. Patiromer and Spironolactone in Resistant Hypertension and Advanced CKD: Analysis of the Randomized AMBER Trial. Kidney360. 2021 Jan 15;2(3):425-434. doi: 10.34067/KID.0006782020. eCollection 2021 Mar 25.
PMID: 35369022DERIVEDNatale P, Palmer SC, Ruospo M, Saglimbene VM, Strippoli GF. Potassium binders for chronic hyperkalaemia in people with chronic kidney disease. Cochrane Database Syst Rev. 2020 Jun 26;6(6):CD013165. doi: 10.1002/14651858.CD013165.pub2.
PMID: 32588430DERIVEDAgarwal R, Rossignol P, Romero A, Garza D, Mayo MR, Warren S, Ma J, White WB, Williams B. Patiromer versus placebo to enable spironolactone use in patients with resistant hypertension and chronic kidney disease (AMBER): a phase 2, randomised, double-blind, placebo-controlled trial. Lancet. 2019 Oct 26;394(10208):1540-1550. doi: 10.1016/S0140-6736(19)32135-X. Epub 2019 Sep 15.
PMID: 31533906DERIVEDAgarwal R, Rossignol P, Garza D, Mayo MR, Warren S, Arthur S, Romero A, White WB, Williams B. Patiromer to Enable Spironolactone Use in the Treatment of Patients with Resistant Hypertension and Chronic Kidney Disease: Rationale and Design of the AMBER Study. Am J Nephrol. 2018;48(3):172-180. doi: 10.1159/000492622. Epub 2018 Sep 3.
PMID: 30176673DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Clinical Support & Regulatory Intelligence, Regulatory Affairs Director
- Organization
- Vifor Pharma Inc.
Study Officials
- STUDY DIRECTOR
Study Director or VP Clinical Development
Relypsa, Inc.
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- 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
March 1, 2017
First Posted
March 6, 2017
Study Start
January 23, 2017
Primary Completion
November 27, 2018
Study Completion
November 27, 2018
Last Updated
May 12, 2021
Results First Posted
January 27, 2020
Record last verified: 2021-05
Data Sharing
- IPD Sharing
- Will not share