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Terminated Phase 3 Interventional Results available

Efficacy and Safety of Intravenous Neridronic Acid in Complex Regional Pain Syndrome (CRPS)

ClinicalTrials.gov ID: NCT03560986

Public ClinicalTrials.gov record NCT03560986. 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 Sep 5, 2026, 9:27 AM EDT

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

Official title

Placebo-controlled Efficacy and Safety Trial of Intravenous Neridronic Acid in Subjects With Complex Regional Pain Syndrome (CRPS)

Brief summary

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

The aim of this trial was to investigate the efficacy and safety of intravenous neridronic acid in subjects with Complex Regional Pain Syndrome (CRPS). The trial consisted of an Enrollment Period lasting up to 60 days, Treatment Period A consisting of 4 infusions (neridronic acid 100 mg or placebo) over 10 days, and a Follow-up Period 1 until Week 26. At Week 26, participants meeting the pre-specified criteria entered the open-label Treatment Period B with 4 additional infusions (neridronic acid) over 10 days and follow-up visits until Week 52. Participants not meeting the pre-specified criteria to continue into Treatment Period B continued in Follow-up Period 2 until Week 52.

Study identification

NCT ID
NCT03560986
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 3
Lead sponsor
Grünenthal GmbH
Industry
Enrollment
267 participants

Conditions and interventions

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
May 30, 2018
Primary completion
Jul 31, 2019
Completion
Jul 31, 2019
Last update posted
Aug 4, 2020

2018 – 2019

United States locations

U.S. sites
41
U.S. states
20
U.S. cities
37
Facility City State ZIP Site status
US446 - Clinical Trial Connection Cottonwood Arizona 86326
US453 - Physicians Research Group II, LLC Tempe Arizona 85284
US428 - Quality of Life Medical and Research Center LLC Tucson Arizona 85712
US422 - Woodland International Research Group Little Rock Arkansas 72211
US454 - Alliance Research Institute Canoga Park California 91304
US415 - Clearview Medical Research LLC Canyon Country California 91351
US410 - Alliance Research Centers Laguna Hills California 92653
US432 - Torrance Clinical Research Institute Inc. Lomita California 90717
Us414 - Alexander Ford Md Los Angeles California 90035
US441 - Samaritan Center for Medical Research Los Gatos California 95032
US406 - CI Trials Santa Ana California 92705
US411 - Syrentis Clinical Research Santa Ana California 92705
US420 - Mountain View Clinical Research, INC Denver Colorado 80209
US447 - ASCLEPES Research Centers Brooksville Florida 34613
US457 - Florida Spine Institute Clearwater Florida 33765
US430 - South Lake Pain Institute Clermont Florida 34711
US434 - Finlay Medical Research Miami Florida 33126
US407 - Oceane 7 Medical and Research Center, Inc. Miami Florida 33144
US436 - Cordova Research Institute Miami Florida 33155
US417 - Tampa Pain Relief Center Tampa Florida 33603
US403 - Palm Beach Research Center West Palm Beach Florida 33409
US404 - Infinite Clinical Trials Riverdale Georgia 30274
US424 - Georgia Neurology and Sleep Medicine Assoc. Suwanee Georgia 30024
US431 - Injury Care Research, LLC Boise Idaho 83713
US437 - Great Lakes Clinical Trials LLC Chicago Illinois 60640
US435 - Centex Studies Inc Lake Charles Louisiana 70601
US448 - The Center for Rheumatology and Bone Research Wheaton Maryland 20902
US450 - SRI International Plymouth Michigan 48170
US449 - Michigan Pain Consultants Wyoming Michigan 49503
US433 - Creighton University - Osteoporosis Research Center Omaha Nebraska 68122
US419 - Manhattan Behavioral Medicine New York New York 10036
US440 - OnSite Clinical Solutions LLC Charlotte North Carolina 28210
US405 - OnSite Clinical Solutions LLC Hickory North Carolina 28601
US416 - Medical Research International Oklahoma City Oklahoma 73109
US429 - Lehigh Valley Health Allentown Pennsylvania 18103
US438 - Abington Neurological Associates, LTD. Willow Grove Pennsylvania 19090
US425 - PCPMG Clinical Research Unit LLC Greenville South Carolina 29601
US423 - Biopharma Informatic Inc. Research Center Houston Texas 77043
US443 - Centex Studies Inc Houston Texas 77058
US421 - Northwest Clinical Research Center Bellevue Washington 98007
US445 - Exemplar Research Inc Morgantown West Virginia 26505

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 30 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03560986, 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 Aug 4, 2020 · Synced Sep 5, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03560986 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →