This was a double-blinded, two-arm, phase 2a study to assess efficacy, safety and tolerability of DFV890 in participants with symptomatic knee osteoarthritis.
The purpose of the Phase 2a proof of concept study was to evaluate the safety and tolerability of DFV890 in participants with symptomatic knee OA, and to determine the efficacy of DFV890 in reducing knee pain as evidenced by change in KOOS (knee injury and osteoarthritis outcome score). The study had a screening period up to 45 days, a treatment period of 12 weeks and a 4-week follow-up period. At most, the study duration was 21 weeks.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
115
Change From Baseline in Knee Injury and Osteoarthritis Outcome Score (KOOS) Pain Subscale
The KOOS questionnaire is a commonly used instrument to assess the patient's perception about their knee and associated problems. The original KOOS consists of 5 subscales. One of those is the pain frequency/severity during functional activities consisting of 9 questions with a recall of 7 days. Each question has 5 standardized answer options with a score from 0 to 4. A normalized score (100 indicating no pain and 0 indicating extreme pain) is calculated for each subscale. Change from baseline in KOOS pain score was analyzed using a mixed effects model for repeated measures (MMRM) including all time-points to compare treatment groups. The model includes baseline, treatment, timepoint, baseline-by-timepoints interaction and treatment-by-timepoints interaction as fixed effects. Missing data is assumed to be Missing at Random (MAR).
Time frame: Baseline, Week 12
Change From Baseline in Synovitis Activity Level Measured From Ktrans by Dynamic Contrast Enhanced MRI (DCE-MRI)
Magnetic resonance images (MRI) were obtained from the target knee with dynamic contrast enhancement (DCE) to visualize and quantify changes in k-trans as a marker of the activity of synovial inflammation. In dynamic contrast-enhanced MRI, ktrans is a parameter that reflects how quickly contrast agent moves from blood vessels into the surrounding tissue, capturing both blood flow and vascular permeability. In synovitis, inflamed synovial tissue shows increased perfusion and leaky microvasculature, so higher k-trans values are interpreted as indicating more active synovial inflammation. Change from baseline in synovitis activity level measured from ktrans was analyzed to compare treatment groups. The model included treatment as fixed effect and baseline as continuous covariate. Ktrans is a marker of synovial inflammation in relation to vascularity permeability.
Time frame: Baseline, Week 12
Change From Baseline in Serum High Sensitivity C-reactive Protein (hsCRP) Level
HsCRP is a protein produced by the liver in response to inflammation in the body, such as from an infection, injury, or chronic inflammatory conditions. HsCRP was used to assess the effect of DFV890 compared to placebo on systemic inflammatory status.
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ARENSIA Explor Med Res Clinic
Phoenix, Arizona, United States
TriWest Reserach Associates
El Cajon, California, United States
Skylight Health Res Inc Color Spr
Colorado Springs, Colorado, United States
IRIS Research and Development
Plantation, Florida, United States
Conquest Research
Winter Park, Florida, United States
Ctr for Adv Research and Education
Gainesville, Georgia, United States
Northwestern University
Chicago, Illinois, United States
Novartis Investigative Site
CABA, Buenos Aires, Argentina
Novartis Investigative Site
San Miguel, Tucumán Province, Argentina
Novartis Investigative Site
San Miguel de Tucumán, Argentina
...and 21 more locations
Time frame: Baseline, Weeks 2, 4, 8 and 12
Change From Baseline in Absolute Neutrophil Counts (ANC)
ANC measures the number of neutrophils, a type of white blood cell crucial for fighting infection, in a blood sample. ANC was used to judge target engagement of DFV890.
Time frame: Baseline, Weeks 2, 4, 8 and 12
Maximum Plasma Concentration (Cmax) of DFV890
Cmax is defined as the maximum (peak) observed concentration following a dose. DFV890 plasma concentrations were determined using the actual recorded sampling times and non-compartmental method with Phoenix WinNonlin (Version 8). DFV890 was determined by a validated LC-MS/MS method; the lower limit of quantification (LLOQ) is 1 ng/mL.
Time frame: Week 2 and Week 12: pre-dose, 1h, 3h, 5h, 8h
Area Under Plasma Concentration-time Curve From Time Zero to the Last Measurable Concentration Sampling Time (AUClast) of DFV890
AUClast is the area under the plasma concentration-time curve from time zero to the time of last quantifiable concentration (tlast). DFV890 plasma concentrations were determined using the actual recorded sampling times and non-compartmental method with Phoenix WinNonlin (Version 8). DFV890 was determined by a validated LC-MS/MS method; the lower limit of quantification (LLOQ) is 1 ng/mL.
Time frame: Week 2 and Week 12: pre-dose, 1h, 3h, 5h, 8h
Area Under Plasma Concentration-time Curve From Time Zero to 12 Hours (AUC0-12h) of DFV890
AUC(0-12h) is the area under the plasma concentration-time curve from time zero to 12 hours. To calculate AUC0-12h (corresponding to AUCtau, or AUC within a dosing interval), the concentration at 0 hours was used also as a 12 hours time point or, if not feasible, AUC0-12h was extrapolated. DFV890 plasma concentrations were determined using the actual recorded sampling times and non-compartmental method with Phoenix WinNonlin (Version 8). DFV890 was determined by a validated LC-MS/MS method; the lower limit of quantification (LLOQ) is 1 ng/mL.
Time frame: Week 2 and Week 12: pre-dose, 1h, 3h, 5h, 8h
Pre-dose Trough Concentration (Ctrough) of DFV890
DFV890 plasma concentrations were determined using the actual recorded sampling times and non-compartmental method with Phoenix WinNonlin (Version 8). DFV890 was determined by a validated LC-MS/MS method; the anticipated lower limit of quantification (LLOQ) is 1 ng/mL.
Time frame: Week 2 and Week 12: pre-dose
Change From Baseline in Knee Injury and Osteoarthritis Outcome Score (KOOS) Other Symptoms Subscale
The KOOS questionnaire is a commonly used instrument to assess the patient's perception about their knee and associated problems. The original KOOS consists of 5 subscales. One of those is other symptoms (eg., stiffness, swelling, clicking) consisting of 7 questions with a recall of 7 days. Each question has 5 standardized answer options with a score from 0 to 4. A normalized score (100 indicating no symptoms and 0 indicating extreme symptoms) is calculated for each subscale. Change from baseline in other symptoms score was analyzed using a MMRM including all time-points to compare treatment groups. The model includes baseline, treatment, timepoint, baseline-by-timepoints interaction and treatment-by-timepoints interaction as fixed effects. Missing data is assumed to be Missing at Random (MAR).
Time frame: Baseline, Week 2, 4, 8 and 12
Change From Baseline in Knee Injury and Osteoarthritis Outcome Score (KOOS) Function in Daily Living Subscale
The KOOS questionnaire is a commonly used instrument to assess the patient's perception about their knee and associated problems. The original KOOS consists of 5 subscales. One of those is the Function in Daily Living consisting of 17 questions with a recall of 7 days. Each question has 5 standardized answer options with a score from 0 to 4. A normalized score (100 indicating no impact on function in daily living and 0 indicating extreme impact on function in daily living) is calculated for each subscale. Change from baseline in KOOS daily living function score was analyzed using a MMRM including all time-points to compare treatment groups. The model includes baseline, treatment, timepoint, baseline-by-timepoints interaction and treatment-by-timepoints interaction as fixed effects. Missing data is assumed to be Missing at Random (MAR).
Time frame: Baseline, Week 2, 4, 8 and 12
Change From Baseline in Knee Injury and Osteoarthritis Outcome Score (KOOS) Function in Sport and Recreation Subscale
The KOOS questionnaire is a commonly used instrument to assess the patient's perception about their knee and associated problems. The original KOOS consists of 5 subscales. One of those is the function in sport and recreation consisting of 5 questions with a recall of 7 days. Each question has 5 standardized answer options with a score from 0 to 4. A normalized score (100 indicating no impact on sport and recreation and 0 indicating extreme impact on sport and recreation) is calculated for each subscale. Change from baseline in function in sport and recreation score was analyzed using a MMRM including all time-points to compare treatment groups. The model includes baseline, treatment, timepoint, baseline-by-timepoints interaction and treatment-by-timepoints interaction as fixed effects. Missing data is assumed to be Missing at Random (MAR).
Time frame: Baseline, Week 2, 4, 8 and 12
Change From Baseline in Knee Injury and Osteoarthritis Outcome Score (KOOS) Knee-related Quality of Life (QOL) Subscale
The KOOS questionnaire is a commonly used instrument to assess the patient's perception about their knee and associated problems. The original KOOS consists of 5 subscales. One of those is the knee-related quality of life consisting of 4 questions with a recall of 7 days. Each question has 5 standardized answer options with a score from 0 to 4. A normalized score (100 indicating no impact on knee-related quality of life and 0 indicating extreme impact on knee-related quality of life) is calculated for each subscale. Change from baseline in knee related quality of life score was analyzed using a MMRM including all time-points to compare treatment groups. The model includes baseline, treatment, timepoint, baseline-by-timepoints interaction and treatment-by-timepoints interaction as fixed effects. Missing data is assumed to be Missing at Random (MAR).
Time frame: Baseline, Week 2, 4, 8 and 12
Change From Baseline in Knee Injury and Osteoarthritis Outcome Score (KOOS) Pain Subscale
The KOOS questionnaire is a commonly used instrument to assess the patient's perception about their knee and associated problems. The original KOOS consists of 5 subscales. One of those is pain frequency/severity during functional activities consisting of 9 questions with a recall of 7 days. Each question has 5 standardized answer options with a score from 0 to 4. A normalized score (100 indicating no pain and 0 indicating extreme pain) is calculated for each subscale. Change from baseline in KOOS pain score was analyzed using a MMRM including all time-points to compare treatment groups. The model includes baseline, treatment, timepoint, baseline-by-timepoints interaction and treatment-by-timepoints interaction as fixed effects. Missing data is assumed to be Missing at Random (MAR).
Time frame: Baseline, Week 2, 4, 8
Change From Baseline in Numeric Rating Scale (NRS) for Pain
The Numerical Rating Scale (NRS) Pain is a subjective assessment in which individuals rate their pain on an eleven-point numerical scale. NRS pain score ranges from 0-10 and for analyses were transformed to a 0-100 scale to be consistent with KOOS pain scores. A negative change from baseline implied improvement in pain. The NRS Pain instrument had a recall period of 24 hours and the participants were asked to rate the pain intensity at its worst. Change from baseline in NRS pain score was analyzed using a MMRM including all time-points to compare treatment groups. The model includes baseline, treatment, timepoint, baseline-by-timepoints interaction and treatment-by-timepoints interaction as fixed effects. Missing data is assumed to be Missing at Random (MAR).
Time frame: Baseline, Weeks 2, 4, 8 and 12