NCT06855433

Brief Summary

The goal of this clinical trial is to learn if colchicine reduces levels of proteins indicating inflammation in the blood in individuals with calcium pyrophosphate deposition (CPPD) disease. The trial will also test the effect of colchicine on joint symptoms in CPPD disease. The main questions it aims to answer are:

  • Does colchicine reduce the level of interleukin 18 (IL-18) in the blood of individuals with CPPD disease?
  • Does colchicine reduce pain scores in individuals with CPPD disease? Researchers will compare colchicine once daily to a placebo (a look-alike pill that contains no drug) to see if colchicine works to treat CPPD disease. Participants will:
  • Take colchicine or a placebo every day for 6 months
  • Visit the clinic 3 times in 6 months for joint examinations, surveys, and blood tests. Each visit will last 2-3 hours.
  • Speak on the telephone with researchers for about 4 times over 6 months. Each phone call will last about 5 minutes.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
150

participants targeted

Target at P75+ for phase_2

Timeline
51mo left

Started Jul 2026

Typical duration for phase_2

Geographic Reach
1 country

5 active sites

Status
recruiting

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 Progress1%
Jul 2026Sep 2030

First Submitted

Initial submission to the registry

February 26, 2025

Completed
5 days until next milestone

First Posted

Study publicly available on registry

March 3, 2025

Completed
1.4 years until next milestone

Study Start

First participant enrolled

July 20, 2026

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2030

Expected
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2030

Last Updated

July 9, 2026

Status Verified

July 1, 2026

Enrollment Period

3.8 years

First QC Date

February 26, 2025

Last Update Submit

July 7, 2026

Conditions

Keywords

colchicineCPPD diseasecalcium pyrophosphatepseudogout

Outcome Measures

Primary Outcomes (1)

  • Interleukin 18 (IL-18)

    Serum IL-18

    Baseline and Week 24

Secondary Outcomes (16)

  • Serum IL-1b

    Baseline and Week 24

  • Serum IL-17A

    Baseline and Week 24

  • High-sensitivity C-reactive protein (hsCRP)

    Baseline and Week 24

  • IL-1b gene signature expression in PBMCs

    Baseline and Week 24

  • Immune cell population frequencies

    Baseline and Week 24

  • +11 more secondary outcomes

Study Arms (2)

Colchicine

EXPERIMENTAL

Colchicine

Drug: Colchicine Pill

Placebo

PLACEBO COMPARATOR

Placebo

Drug: Placebo

Interventions

Colchicine 0.6mg tab, overencapsulated to match placebo capsule, taken by mouth once daily

Colchicine

Placebo capsule, taken by mouth once daily

Placebo

Eligibility Criteria

Age40 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Provide written informed consent
  • Fulfill ACR/EULAR 2023 CPPD classification criteria
  • Acute or chronic joint inflammation currently or in the past 3 months, not attributable to another condition (Joint Inflammation defined as: At least 1 joint this is swollen, red, or warm to the touch; with or without corresponding tenderness)
  • Pain visual analog scale (pain VAS) \>=30 at screening

You may not qualify if:

  • Age \<40 years
  • Chronic diarrhea
  • Gout, rheumatoid arthritis, psoriatic arthritis, or cirrhosis
  • Ongoing use of colchicine and unwilling to undergo a 30-day wash-out period (note: patients using colchicine at screening can enroll if they agree to a 30-day wash-out before randomization)
  • Pregnant or breast-feeding
  • Use of methotrexate, hydroxychloroquine, tocilizumab or canakinumab in the past 4 weeks
  • Use of anakinra, oral glucocorticoid, or intra-articular steroid in the past 1 week
  • Ongoing use of strong CYP3A4 inhibitors per FDA package insert for colchicine
  • Ongoing use of P-glycoprotein inhibitors per FDA package insert for colchicine
  • Known allergy to colchicine
  • Planned joint surgery in the next 6 months
  • CPPD clinical presentation isolated to Crowned Dens Syndrome with no additional peripheral joint involvement
  • Screening labs with any of the following:
  • Hemoglobin \< 9 g/dL
  • WBC \<3 x 10\^9/L
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (5)

University of Alabama - Birmingham

Birmingham, Alabama, 35233, United States

RECRUITING

University of California - Los Angeles

Los Angeles, California, 90095, United States

RECRUITING

Boston University Medical Center/Boston Medical Center

Boston, Massachusetts, 02118, United States

RECRUITING

Brigham and Women's Hospital

Boston, Massachusetts, 02118, United States

RECRUITING

Medical College of Wisconsin

Milwaukee, Wisconsin, 53226, United States

RECRUITING

MeSH Terms

Conditions

Chondrocalcinosis

Interventions

Colchicine

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesCrystal Arthropathies

Intervention Hierarchy (Ancestors)

AlkaloidsHeterocyclic Compounds

Central Study Contacts

Brenna Sharp de Flores, Senior Research Coordinator

CONTACT

Sara Tedeschi, MD, MPH

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Data Coordinating Center
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor of Medicine

Study Record Dates

First Submitted

February 26, 2025

First Posted

March 3, 2025

Study Start

July 20, 2026

Primary Completion (Estimated)

April 30, 2030

Study Completion (Estimated)

September 30, 2030

Last Updated

July 9, 2026

Record last verified: 2026-07

Locations