Table of Contents
- Trial overview
- Who was studied
- Treatment and comparison
- Study phase and design
- Outcomes measured
- What the results track
Trial overview
The source data describe one randomized controlled trial that studied Autologous Chondrocytes in people with a symptomatic articular cartilage lesion of the knee.[1] The trial compared IMPACT with conservative treatment and was completed.[1]
Who was studied
The target population was patients with cartilage damage in the knee, especially lesions in the femoral condyles or trochlea.[1] These are areas inside the knee joint where damaged cartilage can cause pain and problems with movement.[1]
Treatment and comparison
The study tested IMPACT, given as an intra-articular injection, meaning an injection placed directly into the joint.[1] The comparison group received conservative treatment, which in this trial meant optional physical therapy and pain medication, with no surgical treatment.[1]
Study phase and design
This was a Phase 3 study with 60 enrolled participants.[1] Phase 3 trials usually compare a treatment with standard care in a larger patient group to see how well it performs in real clinical use.[1]
The study was designed to compare clinical improvement and quality of life after randomization.[1] Randomization means patients are assigned to study groups by chance.[1]
Outcomes measured
The main study outcomes were clinical improvement and quality of life at 3, 6, and 9 months.[1] Clinical improvement means whether patients felt and functioned better after treatment.[1]
The trial measured these outcomes using KOOS subscales and EQ5D.[1] KOOS is a knee questionnaire, and EQ5D is a health and quality-of-life questionnaire.[1]
What the results track
The study focused on whether Autologous Chondrocytes-related treatment could do better than standard care for symptoms and daily-life impact in knee cartilage lesions.[1] The time points at 3, 6, and 9 months show that the researchers were looking at both short-term and medium-term results.[1]



