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Could a Sugar-Water injection ease knee arthritis?

NCT ID NCT05160532

Symptom relief Sponsor: Mayo Clinic Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 30, 2026 · Last updated Jul 01, 2026 · Updated 1 time

Summary

This study tests whether injecting a concentrated sugar-water solution (dextrose) into the knee joint can reduce pain and improve function in people with knee osteoarthritis. Participants receive either the dextrose injection or a placebo (salt-water injection) under ultrasound guidance. The goal is to find the best injection schedule and see if this simple, low-cost approach provides meaningful relief.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
dextrose (sugar water)
What this could lead to
If it works, this could offer a simple, low-cost injection treatment to reduce knee pain and improve mobility without surgery.
What could go wrong
This is a small, early-phase study, so results may not apply to everyone. The injection may cause temporary pain or swelling, and it is unclear if it works better than a placebo.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

48 people

The number who actually took part.

Started

Apr 2022

Finished

May 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

40 to 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Diagnosis of knee OA by clinical criteria (American College of Rheumatology). * Identification of knee osteoarthritis by a radiologist on an existing knee radiograph obtained within 3 years of enrollment. * Moderate to severe knee pain for at least 3 months, defined as a score of ≥ 4 (on a 0-10 point numeric rating scale) in response to the question "What is the average level of your left/right knee pain in the past 3 months?". Exclusion Criteria: * Pregnancy. * Diabetes. * Anticoagulation therapy. * History of total knee replacement. * Prior knee prolotherapy or other regenerative product. * Any knee injection within 3 months. * Inflammatory (RA, gout, pseudogout etc.) or postinfectious knee arthritis. * Daily use of opioid medication. * Allergy or intolerance to study medication, corn allergy. * Body mass index (BMI) greater than 40 kg/m\^2. * Comorbidity severe enough to prevent participation in the study protocol. * Use of oral steroids during the study period * Use of injectable steroids in the past 3 months or during the study period

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Conditions

The condition(s) this trial relates to.

osteoarthritis, knee

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Knee osteoarthritis

Contacts and locations

Locations

  • Mayo Clinic in Arizona

    Scottsdale, Arizona, 85260, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.