Triamcinolone Ketorolac (TriKe) Knee Trial

Study Purpose

Cortisone injections are commonly used in the treatment of osteoarthrosis of the knee, but there are known detriments to cortisone including localized tissue atrophy near the injection site and acceleration of joint degeneration, as well as contraindications, such as uncontrolled diabetes. Ketorolac is a non-steroidal anti-inflammatory with decades of clinical data that is most commonly injected intramuscularly. There is rising interest in using ketorolac as an intra-articular injectant substitute or adjunctive to cortisone. This may potentially improve clinical outcomes or decrease adverse effects. Although intra-articular use of ketorolac is increasing in orthopedics and sports medicine, there is limited data in the literature comparing these two injectants in prospective, randomized trials, and no data that evaluates combining the two injectants. Primary objectives are to evaluate the efficacy of intra-articular ketorolac compared to cortisone on knee osteoarthrosis and to evaluate whether the combination of ketorolac and cortisone is superior to either alone.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Eligible Ages 21 Years and Over
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - Knee pain with diagnosis of osteoarthritis/osteoarthrosis.
  • - Weight-bearing x-rays within the last year adequate to assess Kellgran-Lawrence OA stage.
  • - Age > 21.
  • - English proficiency sufficient to complete surveys.
  • - Willing to complete follow-up surveys.

Exclusion Criteria:

  • - Prior knee injection in last 3 months.
  • - Knee surgery within the last year.
  • - Contraindications to Cortisone, Ketorolac, or local anesthetic.
  • - Uncontrolled diabetes.
  • - Systemic steroid use in last 3 months.
  • - BMI > 50.
  • - Non-ambulatory.
  • - Known kidney disease.
- Current opioid use

Trial Details

Trial ID:

This trial id was obtained from, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.


Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Phase 4
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

United Health Services Hospitals, Inc.
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Stanley Hunter, MD
Principal Investigator Affiliation United Health Services Hospitals, Inc.
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Overall Status Enrolling by invitation
Countries United States

The disease, disorder, syndrome, illness, or injury that is being studied.

Osteoarthritis, Knee
Additional Details

Charts will be prescreened for diagnosis or suspicion of osteoarthritis of the knee by the study staff. Those charts identified will be flagged for possible inclusion in the study. The receptionist will give the prospective subject a copy of the consent to read while they are in the waiting room. Once they are taken back to the room, the investigator will review the study with them. If they are agreeable, they will sign the consent and a copy will be given to them and a copy will be scanned into the Electronic Medical Record (EMR). The investigator will then notify the unblinded investigator, who will randomize the subject and prepare the medication in a blinded fashion. The subject will receive either ketorolac 30 mg, triamcinolone 40 mg, or a combination of the two medications as a one-time injection into the affected knee joint/s. The subject will be asked to complete a survey prior to receiving the injection, and again at 1 week, 6 weeks, and 12 weeks post injection. If necessary, an additional survey will be completed at 24 weeks post injection.

Arms & Interventions


Active Comparator: Triamcinolone acetonide - Ropivacaine - Normal Saline

Subject would receive: Triamcinolone acetonide, 40 mg/mL. 1 mL Ropivacaine 0.2%, 2 mL Saline 0.9% 1 mL for a total of 4 mL injected intraarticularly into affected knee/s at randomization

Experimental: Ketorolac - Ropivacaine - Normal Saline

Subject would receive: Ketorolac 30 mg/mL, 1 mL Ropivacaine 0.2%, 2 mL Saline 0.9% 1 mL for a total of 4 mL injected intraarticularly into affected knee/s at randomization

Experimental: Triamcinolone acetonide - Ketorolac - Ropivacaine

Subject would receive: Triamcinolone acetonide, 40 mg/mL Ketorolac 30 mg/mL, 1 mL Ropivacaine 0.2%, 2 mL for a total of 4 mL injected intraarticularly into affected knee/s at randomization


Drug: - Triamcinolone acetonide-Ketorolac-Ropivacaine

Experimental for Osteoarthrosis of the Knee. One randomized injection to intraarticularly into affected knee at time of randomization

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

Vestal, New York



United Health Services Sports Medicine Department

Vestal, New York, 13850