Information and support for people living with CRPS
CRPS INFORMATION & PATIENT ORIENTATION

Clear information.
Real support.
A path forward.

Understand CRPS, learn what the scientific literature says about neridronate, explore treatment possibilities and get direct support to identify the path that best fits your needs.

START HERE

New to CRPS or considering neridronate treatment?

Use CRPS Support as a guided path: understand the condition, review neridronate information, explore available treatment possibilities and ask for personal orientation when you need it.

RELIABLE

Clear sources, understandable information and careful research.

SUPPORT

A human point of contact when information alone is not enough.

INFORMATION

CRPS, neridronate possibilities, science and practical guidance in one place.

HOPE

Helping patients find possibilities and move toward the next step.
PATIENT SUPPORT · CALIFORNIA

Carla Crowe

Carla Crowe is the Patient Care Coordinator – California. She is available to answer questions, help patients organize information and provide a direct point of contact when exploring CRPS treatment possibilities.
LOCATION
San Francisco Bay Area, CA, USA
SUPPORT HOURS
Mon–Thu · 9:00 AM–5:00 PM PST
UNDERSTAND YOUR OPTIONS

A simpler way to navigate a complex condition

CRPS can affect pain, movement, sleep, work, relationships and mental wellbeing. CRPS Support brings the most important questions together so patients and families can move from confusion to a clearer plan.

01

What is CRPS?

Symptoms, diagnosis, disease phases and the difference between CRPS-I and CRPS-II.

02

What is neridronate?

What type of medication it is, how it has been studied and what is known about its use in CRPS.
03

Where is it approved?

Explore treatment possibilities by city and facility, with practical information in one place.
04

Need help with the next step?

Patient support can help you organize questions, documents and practical information.
NERIDRONATE & CRPS

Understand the science behind neridronate.

Neridronate is a bisphosphonate that has been studied in CRPS-I and is used for the treatment of CRPS. The scientific area of CRPS Support brings together studies, regulatory documents and practical explanations for patients and families.

Neridronate Treatment Approval
Official information about the use of neridronate for CRPS.

Clinical studies
Research explained in clear language, with direct access to source material.
Practical information
Administration, safety, questions to discuss with qualified medical professionals and updates.
SCIENCE LIBRARY
Research & sources

Scientific information made easier to navigate.

The dedicated library will organize peer-reviewed studies, official documents and treatment information so patients can understand the evidence and bring informed questions to their healthcare team.

01
Clinical studies on neridronate

Research papers and study summaries

02
Approval and official documents

Regulatory and prescribing information

03
Safety & administration
Practical information to discuss with your physician
PHASE 3 CLINICAL TRIAL

Neridronate is in pivotal Phase 3 development

NERIDRONATE · CRPS-I · RANDOMIZED EVIDENCE · FDA BREAKTHROUGH · PHASE 3
THE CRPS TREATMENT WITH AN EVIDENCE PROFILE THAT STANDS APART

Neridronate.
Built on evidence.

CRPS has been treated with many approaches. Neridronate stands in a different category: randomized, double-blind, placebo-controlled clinical trials demonstrated clinically meaningful efficacy in CRPS-I.

Its development is supported not only by clinical studies, but also by CRPS-specific U.S. patent protection covering neridronic-acid treatment methods and formulations, plus FDA Breakthrough Therapy, Fast Track and Orphan Drug designations. The pivotal CRPS-RISE Phase 3 program is now underway.

01
Placebo-controlled efficacy
02
CRPS-specific U.S. patents
03
FDA expedited designations
THE NUMBERS
What makes neridronate different.
CLINICAL DATA
2013 · RANDOMIZED IV TRIAL
82 PATIENTS
46.5
mm pain reduction
Mean VAS change with neridronate at day 40 vs 22.6 mm with placebo.
2021 · RANDOMIZED IM TRIAL
78 PATIENTS
65.9
% responders
Patients achieving at least 50% pain reduction vs 29.7% with placebo.
12-MONTH FOLLOW-UP
DURABILITY
91.4
% responders
Of IM-treated study completers were still ≥50% pain responders at one year.
WHY THIS MATTERS

Neridronate is not just another drug used around CRPS. Neridronate is the only drug approved in the world with an Italian patent that cures CRPS.

01

It demonstrated superiority to placebo.

In the pivotal IV trial, pain reduction was substantially greater with neridronate, with P < 0.0001 at day 40.
02

The result was reproduced in another randomized trial.

A second placebo-controlled study again showed a clinically relevant treatment signal, including a much higher ≥50% pain-responder rate.

03

Its CRPS development is protected by U.S. patents.

Multiple granted U.S. patents cover neridronic-acid methods and molecular complexes for treating CRPS and CRPS-related symptoms.

04

FDA recognized its development potential.

Neridronate has received Breakthrough Therapy, Fast Track and Orphan Drug designations and is being evaluated in the pivotal CRPS-RISE Phase 3 trial.
Important regulatory distinction:

Neridronate is not currently FDA-approved for CRPS in the United States. FDA designations and Phase 3 development are not the same as marketing approval.

DON'T STOP AT THE CLAIM.

Read the trials. Read the patents. Read the FDA record.

TREATMENT

Accessing Neridronate: Infrastructure Comparison

Compare the main treatment settings currently identified by CRPS Support. Each facility has a different care model, level of logistical support and route of access, especially for patients travelling from abroad.

CENTER
FOCUS
LOGISTICS & ACCESS
PUBLIC UNIVERSITY

Rome · Policlinico Umberto I

FOCUS
Large public university hospital offering care within the Italian hospital system.
LOGISTICS & ACCESS
Public-hospital access can involve longer waiting times. International patients may need to manage more of the administrative, language and travel logistics independently.
PRIVATE

Rome · Dedicated Private Specialist Center

FOCUS

Private pathway in Rome dedicated to Neridronate treatment for CRPS, at Via degli Uffici del Vicario 33.

LOGISTICS & ACCESS
The source material describes rapid access and a low-cost treatment model compared with more complex private pathways. Patients can contact the center directly to confirm current timing, eligibility and practical arrangements.
PUBLIC UNIVERSITY

Verona · University Hospital

FOCUS
University hospital with long-standing experience in CRPS and Neridronate. The source material notes more than 15 years of experience and involvement in the clinical development of the treatment.
LOGISTICS & ACCESS
Academic public-hospital setting. Access is generally more dependent on public waiting lists and hospital procedures, with limited capacity for overseas patients.
PUBLIC UNIVERSITY

Bologna · University Hospital

FOCUS
University hospital with long-standing experience treating CRPS with Neridronate. The source material also identifies Bologna among the academic centers involved in developing the Italian treatment pathway.
LOGISTICS & ACCESS
Public-hospital access may require longer lead times and more self-managed administration, particularly for non-EU patients.
PUBLIC UNIVERSITY

Naples · University Policlinic

FOCUS
Major university-hospital setting in Southern Italy, included among the Italian facilities using the Neridronate pathway for CRPS.
LOGISTICS & ACCESS
Standard public-hospital route. International patients should expect to coordinate hospital contacts, travel, language and local logistics more independently.
PUBLIC UNIVERSITY

Palermo · University Policlinic

FOCUS

University-hospital option in Sicily included in the CRPS Support list of Italian Neridronate treatment facilities.

LOGISTICS & ACCESS
Public-hospital access is typically more self-managed for overseas patients and can be affected by waiting times and administrative availability.

Need help comparing these options?

Carla Crowe can help you organize the practical questions to ask each facility and understand which route may better fit your timing, travel needs and personal situation.

STORIES OF HOPE

People who found their way forward.

Behind every diagnosis there is a person who wants to return to everyday life. These photographs capture different moments in real patient journeys—from treatment days to the moments that come after.

DURING TREATMENT

A step in the journey

LIFE BEYOND CRPS

Back to everyday moments

ITALY

Sharing the experience

SUPPORT

Not facing the journey alone

LIFE AFTER TREATMENT

Enjoying the moments that matter

PATIENT PROTECTION & DIFFICULT DECISIONS

When CRPS becomes more than a pain problem

Severe pain can affect every part of life, and some patients face invasive, expensive or irreversible choices. CRPS Support will provide dedicated information pages and practical help for these difficult moments.
URGENT SUPPORT

Suicidal thoughts & crisis help

Immediate-safety guidance, crisis resources and ways for families to respond.
IRREVERSIBLE DECISIONS

Amputation

Information, questions to consider and specialist perspectives before an irreversible decision.
PROCEDURES

Spinal cord stimulation

How the procedure works, potential benefits, limitations and questions to ask.
TREATMENTS

Ketamine

Evidence, duration of benefit, risks, repeated use and the claims patients often encounter.
COST & ACCESS

High-cost care

Practical information to help patients understand costs, services and treatment options.
COMMUNITY

When money blocks access

Ideas, community support and practical pathways for patients struggling to access care.
OUR MISSION

Help every patient find the best path for their situation.

Our mission is to help people living with CRPS understand the possibilities available to them and identify the treatment path that best fits their clinical situation, priorities, practical needs and personal circumstances.

We bring together scientific information, treatment possibilities and direct patient support so each person can ask better questions, compare options and move toward a solution with greater clarity and confidence.

ASK FOR INFORMATION

Tell us how we can help.

Have questions about CRPS, neridronate or treatment possibilities? Send us a message. Carla Crowe and the CRPS Support team can help you find the information most useful for your situation and understand the next practical steps.

PREFER TO CONTACT CARLA DIRECTLY?

    PATIENT INFORMATION REQUEST

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    Tell us what information you are looking for and how we can help.