Clinical trial NCT03349645: Open Label Extension to Assess the Safety of Long-Term Treatment With Ampion for Severe Osteoarthritis (OA) of the Knee
Official title: An Open Label Extension Study to Assess the Safety of Long-Term Treatment With a 4 mL Intra-Articular Injection of Ampion in Adults With Pain Due to Severe Osteoarthritis of the Knee
Study type: INTERVENTIONAL
Overall status: TERMINATED
Phase: PHASE3
Conditions: Severe Osteoarthritis of the Knee
Keywords: Osteoarthritis
osteoarthritis of the knee
Lead sponsor: Ampio Pharmaceuticals. Inc.
Sponsor class: INDUSTRY
First posted: 2017-11-21
Enrollment: 94
Sex: ALL
Minimum age (years): 40
Maximum age (years): 85
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Intervention model description: Open Label
Primary purpose: TREATMENT

Brief summary: This Open Label Extension (OLE) study will assess the safety of long-term treatment with a 4 mL intra-articular injection of Ampion™ in adults with pain due to severe osteoarthritis of the knee

Detailed description: An Open Label Extension (OLE) study will assess the safety of long-term treatment with a 4 mL intra-articular injection of Ampion™ in adults with pain due to severe osteoarthritis of the knee.

The primary trial objective was to evaluate the safety of a 4-mL intra-articular (IA) injection of Ampion with repeat dosing every 12 weeks for 52 weeks with five total injections of Ampion.

Eligibility criteria: Inclusion Criteria:

1. Subjects who completed the AP-003-C Main study and have not developed any exclusionary criteria
2. Able to provide written informed consent to participate in the study
3. Willing and able to comply with all study requirements and instructions of the site study staff
4. Male or female, 40 years to 85 years old (inclusive), as assessed in the AP-003-C Main Study
5. Must be ambulatory, as assessed in the AP-003-C Main Study
6. Study knee must have a clinical diagnosis of OA and supported by radiological evidence (Kellgren Lawrence Grade IV) as assessed in the AP-003-C Main Study.
7. Moderate to moderately-severe OA pain in the study knee (rating of at least 1.5 on the WOMAC Index 3.1 5-point Likert Pain Subscale), as assessed in the AP-003-C Main Study
8. Moderate to moderately-severe OA function in the study knee (rating of at least 1.5 on the WOMAC Index 3.1 5-point Likert Function Subscale), as assessed in the AP-003-C Main Study
9. WOMAC A, 5-point Likert pain subscale \<1.5 in the contralateral knee, as assessed in the AP-003-C Main Study
10. Ability to discontinue NSAID ± 72 hours before/after injections (in-office visits). Low-dose Aspirin (81 mg) is allowed during the study but must not be taken at least 24 hours prior to in-office visits.
11. No analgesia (including acetaminophen \[paracetamol\]) taken 24 hours prior to an efficacy measure

Exclusion Criteria:

1. As a result of medical review and screening investigation, the Principal Investigator considers the patient unfit for the study
2. Known clinically significant liver abnormality (e.g., cirrhosis, transplant, etc.)
3. A history of allergic reactions to human albumin (reaction to non-human albumin such as egg albumin is not an exclusion criterion)
4. A history of allergic reactions to excipients in 5% human albumin (N-acetyltryptophan, sodium caprylate)
5. Presence of tense effusions
6. Inflammatory or crystal arthropathies, acute fractures, history of aseptic necrosis or joint replacement in the affected knee
7. Isolated patella femoral syndrome, also known as chondromalacia
8. Any other disease or condition interfering with the free use and evaluation of the index knee for the duration of the trial (e.g. cancer, congenital defects, spine osteoarthritis)
9. Major injury to the index knee within the last 12 months
10. Severe hip osteoarthritis ipsilateral to the index knee
11. Any pain that could interfere with the assessment of study knee pain (e.g. pain in any other part of the lower extremities, pain radiating to the knee)
12. Any pharmacological or non-pharmacological treatment targeting OA started or changed 4 weeks prior to entry into the OLE study, or likely to be changed during the duration of the OLE study
13. Pregnancy or planning to become pregnant during the study
14. Use of the following medications:

    1. No IA injected pain medications in the study knee during the study. No Hyaluronic Acid (HA) or steroid injections in the study knee at least 12 weeks prior to Day 84 of the Extension Study. HA and steroid injections in the contralateral knee (non-study knee) are acceptable while on study except ± 14 days of an Ampion injection in the study knee.
    2. No analgesics containing opioids
    3. NSAIDs are not permitted ± 72 hours before/after injections at in-office visits; acetaminophen is available as a rescue medication during the study from the provided supply
    4. No topical treatment on the study knee during the study
    5. No significant anticoagulant therapy (e.g. Heparin or Lovenox) during the study (treatment such as Aspirin and Plavix are allowed)
    6. No systemic treatments that may interfere with safety or efficacy assessments during the study
    7. No immunosuppressants
    8. No use of corticosteroids
    9. No human albumin treatment in the 3 months prior to the AP-003-C Main Study or interim period prior to enrollment into the OLE study. No human albumin treatment throughout the duration of the OLE study

Primary outcomes:
measure: Incidence and Severity of Treatment-Emergent Adverse Events (TEAEs)
timeFrame: 52 weeks
Secondary outcomes:
Other outcomes:
Locations:
city: Birmingham
country: United States
facility: Central Research Associates, Inc.
state: Alabama
city: Encinitas
country: United States
facility: CORE Orthopaedic Medical Center
state: California
city: Fullerton
country: United States
facility: St. Joseph Heritage
state: California
city: Thousand Oaks
country: United States
facility: Westlake Medical Research
state: California
city: Marietta
country: United States
facility: Drug Studies America
state: Georgia
city: Blue Island
country: United States
facility: Healthcare Research Netword
state: Illinois
city: Wichita
country: United States
facility: Heartland Research Associates
state: Kansas
city: Hazelwood
country: United States
facility: Healthcare Network Research
state: Missouri
city: North Charleston
country: United States
facility: Coastal Carolina Center at Lowcountry Orthopaedics
state: South Carolina
city: Austin
country: United States
facility: Tekton Research
state: Texas
city: Bellevue
country: United States
facility: Northwest Clinical Research Center
state: Washington
Study officials:
affiliation: Ampio Pharmaceuticals. Inc.
name: Howard Levy, MD
role: STUDY_DIRECTOR
References: