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Study to Evaluate the Safety and Tolerability of FX201 in Patients With Osteoarthritis of the Knee

Primary Purpose

Osteoarthritis, Knee

Status
Active
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
FX201
Sponsored by
Flexion Therapeutics, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Osteoarthritis, Knee

Eligibility Criteria

30 Years - 80 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Written consent to participate in the study
  • Male or female 30 to 80 years of age, inclusive, on the day of enrollment (Day 1)
  • Body mass index (BMI) ≤ 40 kilograms per meters squared (kg/m2)
  • Clinical diagnosis of OA of the knee on the American College of Rheumatology criteria (Altman, 1986) with radiologic evidence of OA (K-L Grade 2 or 3 for SAD Phase Cohort A and K-L Grade 2, 3 or 4 for SAD Phase Cohorts B and C and the Expansion Phase) at the index joint at the screening visit
  • Moderate pain in the index joint
  • Failed two or more types of conservative therapy for index knee osteoarthritis (e.g., structured exercise programs, topical or oral non-steroidal anti-inflammatory therapies); or failed one prior type of conservative therapy and at least one prior index knee IA treatment (corticosteroid or hyaluronic acid)
  • Sexually active females and males agree to use highly effective methods of contraception

Exclusion Criteria:

  • Reactive arthritis, rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, or arthritis associated with inflammatory bowel disease
  • History of or current infection in the index knee joint
  • Inability to undergo Magnetic Resonance Imaging (MRI) due to presence of surgical hardware or other foreign body in the index knee
  • Unstable index knee joint (e.g., torn anterior cruciate ligament, etc.) within 12 months of Screening
  • Any IA drug/biologic use within 6 months of Screening or 5 half-lives (whichever is longer) (e.g., IA corticosteroid, IA hyaluronic acid, platelet rich plasma injection, stem cells, prolotherapy and amniotic fluid injection, etc.)
  • Cold or radiofrequency nerve ablation of the index knee within 12 months of Screening
  • Arthroscopic or open surgery on the index knee within 12 months of Screening or planned/anticipated surgery on the index knee for the study period
  • Anticipated major surgery during the study period
  • Laboratory values that meet exclusion criteria
  • ECG abnormality at Screening or Baseline judged clinically significant
  • Use of immunomodulators, immunosuppressive, or chemotherapeutic agents within 5 years of Screening
  • Use of any other investigational drug, biologic or device within 3 months of Screening
  • Any systemic or local bacterial or viral infection requiring IV antibiotics or antivirals within 4 weeks of Screening or oral antibiotics or antivirals within 2 weeks of Screening
  • Known allergy or sensitivity to methylprednisolone
  • Any other clinically significant acute or chronic medical conditions (e.g., bleeding disorder) that, in the judgment of the Investigator, would preclude the use of an IA injection or that could compromise patient safety, limit the patient's ability to complete the study, and/or compromise the objectives of the study

Note: Other protocol defined inclusion/exclusion criteria apply.

Sites / Locations

  • Arizona Research Center
  • Gulfcoast Research Institute, LLC
  • Center for Pharmaceutical Research
  • University Orthopedics Center
  • Altoona Center for Clinical Research
  • Metroplex Clinical Research Center
  • Physicians' Research Options/The SMART Clinic

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Experimental

Arm Label

Low Dose FX201

Mid Dose FX201

High Dose FX201

Arm Description

Single low dose FX201 injection

Single mid dose FX201 injection

Single high dose FX201 injection

Outcomes

Primary Outcome Measures

Primary Outcome Measure: Incidence of treatment emergent adverse events after a single intra-articular (IA) injection of FX201 (safety and tolerability)
Incidence of treatment emergent adverse events after a single intra-articular (IA) injection of FX201

Secondary Outcome Measures

Secondary Outcome Measure: Characterization of the systemic biodistribution of FX201 as seen through the percentage of patients positive for FX201 at Baseline, Day 1, Day 2, Week 1, Week 2, Week 3, and Week 4
The percentage of patients positive for FX201 at select timepoints

Full Information

First Posted
October 3, 2019
Last Updated
December 15, 2022
Sponsor
Flexion Therapeutics, Inc.
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1. Study Identification

Unique Protocol Identification Number
NCT04119687
Brief Title
Study to Evaluate the Safety and Tolerability of FX201 in Patients With Osteoarthritis of the Knee
Official Title
An Open-Label, Single Ascending Dose Study to Assess the Safety and Tolerability of FX201 in Patients With Osteoarthritis of the Knee
Study Type
Interventional

2. Study Status

Record Verification Date
December 2022
Overall Recruitment Status
Active, not recruiting
Study Start Date
November 30, 2019 (Actual)
Primary Completion Date
November 30, 2023 (Anticipated)
Study Completion Date
November 30, 2026 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Flexion Therapeutics, Inc.

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This two-part study will be conducted in male and female patients, 30 - 80 years of age with painful OA of the index knee with Kellgren-Lawrence (K-L) Grade 2, 3 or 4. Part 1 - Single Ascending Dose (SAD) Phase: Up to three ascending doses of FX201 will be tested in cohorts of 5-8 patients. Each patient will only receive one injection of FX201. An independent Data Monitoring Committee (DMC) will review safety and guide the conduct of the study. Part 2 - Expansion Phase: Up to an additional 35 patients will be enrolled at each dose level reviewed by the DMC. Each patient will only receive one injection of FX201.
Detailed Description
This two-part study will be conducted in male and female patients, 30 - 80 years of age with painful OA of the index knee with Kellgren-Lawrence (K-L) Grade 2, 3 or 4. Part 1 - SAD Phase: Up to three ascending doses of FX201 (low dose, mid dose and high dose) will be tested in cohorts of 5-8 patients. Each patient will only receive one injection of FX201. A maximum of 24 patients will be enrolled (range 15 to 24). When a minimum of 4 weeks have elapsed since the last patient of the current cohort has been treated, all safety data will be collected and reviewed by an independent Data Monitoring Committee (DMC). After evaluating cohort safety data, the DMC will evaluate continuing the trial and initiating treatment in the next dosing cohort as well as expanding enrollment in dose level(s). Part 2 - Expansion Phase: After the DMC has met to review safety data from each Cohort and has recommended expanding dose level(s), enrollment slots for dose levels reviewed by the DMC will be opened. A maximum of 105 patients [up to an additional 35 patients per dose level (up to 20 FX201 alone and up to 15 FX201 with IA methylprednisolone 40 mg/mL pre-treatment)].

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Osteoarthritis, Knee

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Sequential Assignment
Model Description
Part 1 - Open-Label, Single Ascending Dose Phase Part 2 - Open-Label, Expansion Phase to enroll additional patients in DMC-cleared dose levels by sequential assignment against a pre-defined randomized list
Masking
None (Open Label)
Masking Description
Open Label
Allocation
Non-Randomized
Enrollment
72 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Low Dose FX201
Arm Type
Experimental
Arm Description
Single low dose FX201 injection
Arm Title
Mid Dose FX201
Arm Type
Experimental
Arm Description
Single mid dose FX201 injection
Arm Title
High Dose FX201
Arm Type
Experimental
Arm Description
Single high dose FX201 injection
Intervention Type
Biological
Intervention Name(s)
FX201
Intervention Description
FX201, humantakinogene hadenovec, is a novel interleukin-1 receptor antagonist (IL-1Ra) gene therapy for IA administration that is being developed for the treatment of patients with OAK.
Primary Outcome Measure Information:
Title
Primary Outcome Measure: Incidence of treatment emergent adverse events after a single intra-articular (IA) injection of FX201 (safety and tolerability)
Description
Incidence of treatment emergent adverse events after a single intra-articular (IA) injection of FX201
Time Frame
Baseline to Week 104
Secondary Outcome Measure Information:
Title
Secondary Outcome Measure: Characterization of the systemic biodistribution of FX201 as seen through the percentage of patients positive for FX201 at Baseline, Day 1, Day 2, Week 1, Week 2, Week 3, and Week 4
Description
The percentage of patients positive for FX201 at select timepoints
Time Frame
Baseline, Day 1, Day 2, Week 1, Week 2, Week 3, Week 4

10. Eligibility

Sex
All
Minimum Age & Unit of Time
30 Years
Maximum Age & Unit of Time
80 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Written consent to participate in the study Male or female 30 to 80 years of age, inclusive, on the day of enrollment (Day 1) Body mass index (BMI) ≤ 40 kilograms per meters squared (kg/m2) Clinical diagnosis of OA of the knee on the American College of Rheumatology criteria (Altman, 1986) with radiologic evidence of OA (K-L Grade 2 or 3 for SAD Phase Cohort A and K-L Grade 2, 3 or 4 for SAD Phase Cohorts B and C and the Expansion Phase) at the index joint at the screening visit Moderate pain in the index joint Failed two or more types of conservative therapy for index knee osteoarthritis (e.g., structured exercise programs, topical or oral non-steroidal anti-inflammatory therapies); or failed one prior type of conservative therapy and at least one prior index knee IA treatment (corticosteroid or hyaluronic acid) Sexually active females and males agree to use highly effective methods of contraception Exclusion Criteria: Reactive arthritis, rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, or arthritis associated with inflammatory bowel disease History of or current infection in the index knee joint Inability to undergo Magnetic Resonance Imaging (MRI) due to presence of surgical hardware or other foreign body in the index knee Unstable index knee joint (e.g., torn anterior cruciate ligament, etc.) within 12 months of Screening Any IA drug/biologic use within 6 months of Screening or 5 half-lives (whichever is longer) (e.g., IA corticosteroid, IA hyaluronic acid, platelet rich plasma injection, stem cells, prolotherapy and amniotic fluid injection, etc.) Cold or radiofrequency nerve ablation of the index knee within 12 months of Screening Arthroscopic or open surgery on the index knee within 12 months of Screening or planned/anticipated surgery on the index knee for the study period Anticipated major surgery during the study period Laboratory values that meet exclusion criteria ECG abnormality at Screening or Baseline judged clinically significant Use of immunomodulators, immunosuppressive, or chemotherapeutic agents within 5 years of Screening Use of any other investigational drug, biologic or device within 3 months of Screening Any systemic or local bacterial or viral infection requiring IV antibiotics or antivirals within 4 weeks of Screening or oral antibiotics or antivirals within 2 weeks of Screening Known allergy or sensitivity to methylprednisolone Any other clinically significant acute or chronic medical conditions (e.g., bleeding disorder) that, in the judgment of the Investigator, would preclude the use of an IA injection or that could compromise patient safety, limit the patient's ability to complete the study, and/or compromise the objectives of the study Note: Other protocol defined inclusion/exclusion criteria apply.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Dennis Parenti, MD
Organizational Affiliation
Pacira Pharmaceuticals, Inc
Official's Role
Study Director
Facility Information:
Facility Name
Arizona Research Center
City
Phoenix
State/Province
Arizona
ZIP/Postal Code
85053
Country
United States
Facility Name
Gulfcoast Research Institute, LLC
City
Sarasota
State/Province
Florida
ZIP/Postal Code
34232
Country
United States
Facility Name
Center for Pharmaceutical Research
City
Kansas City
State/Province
Missouri
ZIP/Postal Code
64114
Country
United States
Facility Name
University Orthopedics Center
City
Altoona
State/Province
Pennsylvania
ZIP/Postal Code
16602
Country
United States
Facility Name
Altoona Center for Clinical Research
City
Duncansville
State/Province
Pennsylvania
ZIP/Postal Code
16635
Country
United States
Facility Name
Metroplex Clinical Research Center
City
Dallas
State/Province
Texas
ZIP/Postal Code
75231
Country
United States
Facility Name
Physicians' Research Options/The SMART Clinic
City
Draper
State/Province
Utah
ZIP/Postal Code
84020
Country
United States

12. IPD Sharing Statement

Citations:
PubMed Identifier
33229973
Citation
Mehta S, He T, Bajpayee AG. Recent advances in targeted drug delivery for treatment of osteoarthritis. Curr Opin Rheumatol. 2021 Jan;33(1):94-109. doi: 10.1097/BOR.0000000000000761.
Results Reference
derived

Learn more about this trial

Study to Evaluate the Safety and Tolerability of FX201 in Patients With Osteoarthritis of the Knee

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