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Completed Phase 3 Interventional Results available

Patiromer for the Management of Hyperkalemia in Subjects Receiving RAASi Medications for the Treatment of Heart Failure (DIAMOND)

ClinicalTrials.gov ID: NCT03888066

Public ClinicalTrials.gov record NCT03888066. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 20, 2026, 8:42 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Multicenter, Double-blind, Placebo-controlled, Randomized Withdrawal, Parallel Group Study of Patiromer for the Management of Hyperkalemia in Subjects Receiving Renin Angiotensin Aldosterone System Inhibitor (RAASi) Medications for the Treatment of Heart Failure (DIAMOND)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to assess the effects of patiromer compared with placebo on serum K+ in HF patients.

Study identification

NCT ID
NCT03888066
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Vifor Pharma, Inc.
Industry
Enrollment
1,195 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Apr 24, 2019 (Actual)
Primary completion
Sep 2, 2021 (Actual)
Completion
Sep 2, 2021 (Actual)
Last update posted
Feb 24, 2023

2019 – 2021

United States locations

U.S. sites
133
U.S. states
32
U.S. cities
113
Facility City State ZIP Site status
Investigator Site 11-080 Alexander City Alabama 35010 —
Investigator Site 11-041 Huntsville Alabama 35801 —
Investigator Site 11-153 Phoenix Arizona 85108 —
Investigator Site 11-097 Tucson Arizona 85724 —
Investigator Site 11-052 Bakersfield California 93308 —
Investigator Site 11-174 Fremont California 94538 —
Investigator Site 11-136 Fresno California 93720 —
Investigator Site 11-102 Huntington Beach California 92648 —
Investigator Site 11-162 La Jolla California 92037 —
Investigator Site 11-048 La Mesa California 91942 —
Investigator Site 11-111 Laguna Hills California 92653 —
Investigator Site 11-017 Long Beach California 90813 —
Investigator Site 11-128 Northridge California 91324 —
Investigator Site 11-035 Pasadena California 91105 —
Investigator Site 11-044 Sacramento California 95816 —
Investigator Site 11-135 San Diego California 92119 —
Investigator Site 11-086 San Diego California 92161 —
Investigator Site 11-112 Santa Ana California 92705 —
Investigator Site 11-101 Stockton California 95204 —
Investigator Site 11-047 Thousand Oaks California 91360 —
Investigator Site 11-057 Van Nuys California 91401 —
Investigator Site 11-058 West Hills California 91307 —
Investigator Site 11-095 Aurora Colorado 80045 —
Investigator Site 11-168 Altamonte Springs Florida 32701 —
Investigator Site 11-106 Boynton Beach Florida 33437 —
Investigator Site 11-028 Brandon Florida 33511 —
Investigator Site 11-003 Doral Florida 33166 —
Investigator Site 11-138 Gainesville Florida 32608 —
Investigator Site 11-164 Greenacres City Florida 33467 —
Investigator Site 11-078 Homestead Florida 33033 —
Investigator Site 11-004 Jacksonville Florida 32224-1865 —
Investigator Site 11-179 Jacksonville Florida 32277 —
Investigator Site 11-122 Medley Florida 33166 —
Investigator Site 11-115 Miami Florida 33125 —
Investigator Site 11-125 Miami Florida 33144 —
Investigator Site 11-005 Miami Florida 33155 —
Research Site 11-001 Miami Lakes Florida 33014 —
Research Site 11-002 Miami Lakes Florida 33014 —
Investigator Site 11-032 North Miami Beach Florida 33169 —
Investigator Site 11-171 Orlando Florida 32807 —
Investigator Site 11-025 Orlando Florida 32810 —
Investigator Site 11-087 Orlando Florida 32819 —
Investigator Site 11-177 Pembroke Pines Florida 33026 —
Investigator Site 11-144 Pompano Beach Florida 33064 —
Investigator Site 11-099 Tamarac Florida 33321 —
Investigator Site 11-090 Tampa Florida 33606 —
Investigator Site 11-163 Tampa Florida 33614 —
Investigator Site 11-109 Atlanta Georgia 30303 —
Investigator Site 11-015 Columbus Georgia 31904 —
Investigator Site 11-141 Macon Georgia 31201 —
Investigator Site 11-031 Arlington Heights Illinois 60005 —
Investigator Site 11-051 Hazel Crest Illinois 60429 —
Investigator Site 11-063 Peoria Illinois 61602 —
Investigator Site 11-137 Peoria Illinois 61614 —
Investigator Site 11-117 Merrillville Indiana 46410 —
Investigator Site 11-129 Munster Indiana 46321 —
Investigator Site 11-069 Richmond Indiana 47347 —
Investigator Site 11-061 Owensboro Kentucky 42303 —
Investigator Site 11-183 Opelousas Louisiana 70570 —
Investigator Site 11-022 West Monroe Louisiana 71291 —
Investigator Site 11-027 Baltimore Maryland 21229 —
Investigator Site 11-023 Columbia Maryland 21044 —
Investigator Site 11-132 Boston Massachusetts 02215 —
Investigator Site 11-123 Detroit Michigan 48201 —
Investigator Site 11-121 Livonia Michigan 48154 —
Investigator Site 11-076 Rochester Michigan 48307 —
Investigator Site 11-189 Rochester Michigan 48307 —
Investigator Site 11-068 Jackson Mississippi 39216 —
Investigator Site 11-154 Kansas City Missouri 64111 —
Investigator Site 11-094 St Louis Missouri 63110 —
Investigator Site 11-071 Lincoln Nebraska 68256-9797 —
Investigator Site 11-049 Las Vegas Nevada 89102 —
Investigator Site 11-145 North Las Vegas Nevada 89086 —
Investigator Site 11-088 Haddon Heights New Jersey 08035 —
Investigator Site 11-054 Linden New Jersey 07036 —
Investigator Site 11-148 New Brunswick New Jersey 08901 —
Investigator Site 11-107 Newark New Jersey 07102 —
Investigator Site 11-116 Albuquerque New Mexico 87109 —
Investigator Site 11-151 Brooklyn New York 11203-2012 —
Investigator Site 11-126 Brooklyn New York 11234 —
Investigator Site 11-073 Buffalo New York 14215-1145 —
Investigator Site 11-040 Manhasset New York 11030 —
Investigator Site 11-053 Richmond Hill New York 11419 —
Investigator Site 11-081 Staten Island New York 10310 —
Investigator Site 11-021 Stony Brook New York 11794 —
Investigator Site 11-127 The Bronx New York 10461 —
Investigator Site 11-120 Charlotte North Carolina 28204 —
Investigator Site 11-075 Charlotte North Carolina 28207 —
Investigator Site 11-018 Greenville North Carolina 27834 —
Investigator Site 11-157 Lumberton North Carolina 28358 —
Investigator Site 11-149 Columbus Ohio 43214 —
Investigator Site 11-064 Lorain Ohio 44053 —
Investigator Site 11-042 Marion Ohio 43302-6416 —
Investigator Site 11-187 Toledo Ohio 43623 —
Investigator Site 11-074 Bartlesville Oklahoma 74006 —
Investigator Site 11-124 Oklahoma City Oklahoma 73112 —
Investigator Site 11-056 Hillsboro Oregon 97123 —
Investigator Site 11-169 Portland Oregon 97239 —
Investigator Site 11-165 Erie Pennsylvania 16507 —
Investigator Site 11-082 Hershey Pennsylvania 17033 —
Investigator Site 11-110 Greenville South Carolina 29607 —
Investigator Site 11-098 Greenwood South Carolina 29646 —
Investigator Site 11-119 Lancaster South Carolina 29720 —
Investigator Site 11-133 Rock Hill South Carolina 29732 —
Investigator Site 11-152 Chattanooga Tennessee 37403 —
Investigator Site 11-091 Jackson Tennessee 38301 —
Investigator Site 11-142 Memphis Tennessee 38117 —
Investigator Site 11-083 Memphis Tennessee 38138 —
Investigator Site 11-134 Tullahoma Tennessee 37388 —
Investigator Site 11-104 Allen Texas 75013 —
Investigator Site 11-185 Allen Texas 75013 —
Investigator Site 11-070 Amarillo Texas 79106 —
Investigator Site 11-176 Dallas Texas 75231 —
Investigator Site 11-092 Dallas Texas 75246 —
Investigator Site 11-170 Denison Texas 75020 —
Investigator Site 11-060 Fort Worth Texas 76104 —
Investigator Site 11-072 Gonzales Texas 78629 —
Investigator Site 11-140 Houston Texas 77002 —
Investigator Site 11-089 Houston Texas 77070 —
Investigator Site 11-146 Houston Texas 77077 —
Investigator Site 11-156 Houston Texas 77094 —
Investigator Site 11-034 Katy Texas 77450 —
Investigator Site 11-029 Lampasas Texas 76550 —
Investigator Site 11-046 McKinney Texas 75071 —
Investigator Site 11-147 San Antonio Texas 78215 —
Investigator Site 11-085 San Antonio Texas 78229 —
Investigator Site 11-161 Sugar Land Texas 77479 —
Investigator Site 11-160 Webster Texas 77598 —
Investigator Site 11-178 Salt Lake City Utah 84132 —
Investigator Site 11-158 Norfolk Virginia 23507 —
Investigator Site 11-188 Norfolk Virginia 23510 —
Investigator Site 11-065 Morgantown West Virginia 26506 —
Investigator Site 11-045 Milwaukee Wisconsin 53226 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 282 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03888066, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 24, 2023 · Synced Oct 20, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03888066 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →