Safety and Efficacy of JointAlive™ on the Knee-joint Function in Adults With Knee Arthritis
Study Details
Study Description
Brief Summary
Osteoarthritis (OA) is a joint disorder caused by wear and tear on the joint over time; as a result, the protective cartilage of the bone in the joint gradually wears down. The lifetime risk of developing OA in the knee, with symptoms such as pain, aching, and stiffness, is 40% in men and 47% in women. It is estimated that approximately 19% of Americans aged 45 and older are affected by knee OA. Knee OA accounts for 83% of the global burden caused by all OA types. Pain and stiffness in knees, a large weight-bearing joint, often leads to disability, which interferes with daily life activities and demands expensive medical treatments or care. Due to the limitations of current OA treatment methods, there is an increasing demand for effective and safer alternatives, such as natural health products with pain-relieving potential. The investigational product, JointAlive™, is a supplement designed to alleviate knee OA symptoms and to improve knee functionality. The present study will investigate the safety and efficacy of JointAlive™ in reducing knee OA symptoms and improving joint functionality in an otherwise healthy adult population with mild to moderate knee OA. JointAlive™ is a proprietary blend of Epimedium brevicornum Maxim leaves, Dioscorea nipponica Makino rhizome, Salvia miltoiorrhiza Bunge root and rhizome extracts
Condition or Disease | Intervention/Treatment | Phase |
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N/A |
Detailed Description
Osteoarthritis (OA) is a joint disorder caused by wear and tear on the joint over time; as a result, the protective cartilage of the bone in the joint gradually wears down. The lifetime risk of developing OA in the knee, with symptoms such as pain, aching, and stiffness, is 40% in men and 47% in women. It is estimated that approximately 19% of Americans aged 45 and older are affected by knee OA. Knee OA accounts for 83% of the global burden caused by all OA types. Pain and stiffness in knees, a large weight-bearing joint, often leads to disability, which interferes with daily life activities and demands expensive medical treatments or care. Losina et al. reported that in the United States, the average lifetime costs for symptomatic knee OA management is $12,400 USD, but the cost can be higher with knee surgeries for advanced OA. The economic burden is expected to continue increasing in the near future due to the aging population and increasing prevalence of obesity in many developed countries.
Although the exact etiology of OA is unknown, many risk factors are associated with the development of knee OA, such as obesity, repetitive use of joints, age, and previous knee injury or surgery. Multiple studies have shown a positive association between pro-inflammatory cytokines (e.g. tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6) and OA development. Cytokine-induced nuclear factor-κB (NF-κB) activation can stimulate articular chondrocyte catabolism and extracellular matrix degradation, leading to the breakdown of articular cartilage. The severity of cartilage disintegration and osteophyte (a bony outgrowth) formation can be identified radiographically and used for the Kellgren-Lawrence (KL) grading scheme. A KL score of one (doubtful narrowing of the joint space with possible osteophyte formation) is considered possible OA, while a score of two (possible narrowing of joint space with definite osteophyte formation) or three (definite narrowing of joint space and moderate osteophyte formation) is considered as a definite/mild OA.
It is crucial to treat OA early, before it develops into more severe cases and causes mobility disability. The first step of OA treatment is exercise and/or physiotherapy, which has demonstrated long-term benefits but often difficult to maintain compliance. Once the pain is difficult to manage, over-the-counter medicines such as Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) are introduced to provide relief. NSAIDs are effective in reducing pain, however, long-term usage requires medical supervision. Chronic NSAID use is associated with high incidence of adverse events such as upper gastrointestinal tract problems, kidney and liver injury, hypertension, and congestive heart failure. When the abovementioned treatments are ineffective, intra-articular injections of hyaluronic acid, cortisol, or platelet rich plasma are applied and proven effective, but they can be costly and may cause reactive flares or infections at the injection site. Surgery serves as last resort; it is a successful treatment for advanced OA, but it is invasive and may increase risks of infection, bleeding, and deep vein thrombosis. Given the limitations of current OA treatment methods, there is an increasing demand for effective and safer alternatives, such as natural health products with pain-relieving potential.
The investigational product, JointAlive™, is a supplement designed to alleviate knee OA symptoms and to improve knee functionality. JointAlive™ contains extract from flowering plants that are endemic to China.The main bioactive component is icariin; a flavonoid glycoside demonstrating various antioxidant and anti-inflammatory benefits. Numerous in vitro cell culture studies showed that icariin has the potential to suppress inflammatory pathways involved in OA. In rodent OA models, joint injection of icariin for 32 and 84 days was found to protect the articular cartilage from degeneration.
The present study will investigate the safety and efficacy of JointAlive™ in reducing knee OA symptoms and improving joint functionality in an otherwise healthy adult population with mild to moderate knee OA. Based on the previous studies conducted on the ingredients of this investigational product and their previous application in OA, participants identifying mild or moderate OA in a target knee will be investigated in this study. As OA is a secondary complication in sports injuries as well as a primary development during aging, an age range between 40-75 years will be considered for enrolment. The Kellgren-Lawrence grading scale will be used to confirm OA. As well, BMI cut offs between 18.5 and 29.9 kg/m2 will be considered to excluded those with complications due to obesity and the associated increase in concomitant medication use. To allow for pain relief, as this study involves a placebo group, a rescue medication will be provided. However, in order to ensure that the capture of pain in the target knee is unbiased, participants will be required to abstain from the rescue medication use for 48 hours prior to their clinic visits. Confounders due to medical history and concomitant medications will be ensured by several targeted exclusion criteria with the intent of decreasing potential confounders of the study results.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Placebo Comparator: Placebo
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Dietary Supplement: Placebo
Combination placebo product
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Experimental: JointAlive™
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Dietary Supplement: JointAlive™
Combination herbal extract
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Outcome Measures
Primary Outcome Measures
- Change in knee joint function: Pain [12 weeks]
This will be determined by change in pain of the identified knee joint from baseline to 12-week post-supplementation between JointAlive™ and placebo, as assessed by Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) pain and stiffness scores. Questions are scored on a scale of 0-4, which correspond to: None (0), Mild (1), Moderate (2), Severe (3), and Extreme (4). The scores for each subscale are summed up, with a possible score range of 0-20 for Pain. The lowest number represents no pain while the highest number represent extreme pain or stiffness. These are then converted to the Knee injury and Osteoarthritis Outcomes Score (KOOS) pain scores. KOOS scoring system ranges from 1-100, with 0 representing no pain and 100 being extreme pain.
- Change in knee joint function: Stiffness [12 weeks]
This will be determined by change in stiffness of the identified knee joint from baseline to 12-week post-supplementation between JointAlive™ and placebo, as assessed by Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) pain and stiffness scores. Questions are scored on a scale of 0-4, which correspond to: None (0), Mild (1), Moderate (2), Severe (3), and Extreme (4). The scores for each subscale are summed up, with a possible 0-8 for Stiffness. The lowest number represents no pain or stiffness while the highest number represent extreme pain or stiffness. These are then converted to the Knee injury and Osteoarthritis Outcomes Score (KOOS) pain scores. KOOS scoring system ranges from 1-100, with 0 representing no stiffness and 100 being extreme stiffness.
Secondary Outcome Measures
- Change in Pain [6 weeks]
Change in pain of the identified knee joint from baseline to 6-week post-supplementation between JointAlive™ and placebo, as assessed by Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) pain and stiffness scores. Questions are scored on a scale of 0-4, which correspond to: None (0), Mild (1), Moderate (2), Severe (3), and Extreme (4). The scores for each subscale are summed up, with a possible score range of 0-20 for Pain. The lowest number represents no pain while the highest number represent extreme pain or stiffness. These are then converted to the Knee injury and Osteoarthritis Outcomes Score (KOOS) pain scores. KOOS scoring system ranges from 1-100, with 0 representing no pain and 100 being extreme pain.
- Change in Stiffness [6 weeks]
Change in stiffness of the identified knee joint from baseline to 6-week post-supplementation between JointAlive™ and placebo, as assessed by Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) pain and stiffness scores. Questions are scored on a scale of 0-4, which correspond to: None (0), Mild (1), Moderate (2), Severe (3), and Extreme (4). The scores for each subscale are summed up, with a possible 0-8 for Stiffness. The lowest number represents no pain or stiffness while the highest number represent extreme pain or stiffness. These are then converted to the Knee injury and Osteoarthritis Outcomes Score (KOOS) pain scores. KOOS scoring system ranges from 1-100, with 0 representing no stiffness and 100 being extreme stiffness.
- Knee OA symptoms as assessed by KOOS symptoms score [6-12 weeks]
KOOS Scores range from 0 to 100. A score of 0 indicates the worst possible knee symptoms and 100 indicates no knee symptoms.
- Daily physical function as assessed by KOOS in function daily living score [6-12 weeks]
The Scoring system ranges from 0 to 100, with 0 representing extreme problems and 100 representing no problems
- Physical function in sports and recreational activities as assessed by KOOS function in sports and recreational activities score [6-12 weeks]
The Scoring system ranges from 0 to 100, with 0 representing extreme problems with physical functions and 100 representing no problems
- Current pain as assessed by Pain Visual Analogue Scale (VAS) scores [6-12 weeks]
The Pain VAS questionnaire is a unidimensional measure of pain intensity. With the use of a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100 depending on pain intensity. A score of 0 represents no pain while a score of 100 represents extreme pain.
- Quality of life as assessed by Short Form 36 (SF-36) Questionnaire and KOOS quality of life score [6-12 weeks]
The Scoring system ranges from 0 to 100, with 0 representing poorest quality of life and 100 representing no problems
- Knee joint range of motion (flexion and extension) as assessed by a knee goniometer [6-12 weeks]
- Serum level of C reactive protein (CRP) [6-12 weeks]
- Use of acetaminophen as a rescue medication as assessed by study diary [6-12 weeks]
Other Outcome Measures
- Incidence of pre-emergent and post-emergent adverse events [12 weeks]
- Blood pressure (BP) [12 weeks]
Diastolic and systolic blood pressure (BP) after 6 and 12 weeks of supplementation with JointAlive™
- Heart Rate [12 weeks]
Heart rate (HR) after 6 and 12 weeks of supplementation with JointAlive™
- Change alanine aminotransferase (ALT) after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change aspartate aminotransferase (AST) after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change alkaline phosphatase (ALP), after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in total bilirubin after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in total creatinine after 12 weeks of supplementation with JointAlive™ compared to placebo [12 weeks]
- Change in electrolytes (Na+, K+, Cl-) after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in estimated glomerular filtration rate (eGFR) after 12 weeks of supplementation with JointAlive™ compared to placebo [12 weeks]
- Change in white blood cell (WBC) count after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in neutrophils after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in lymphocytes after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in monocytes after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in eosinophils after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in basophils after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in red blood cell (RBC) count after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in hemoglobin after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in hematocrit after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in platelet count after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in mean corpuscular volume (MCV) after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in mean corpuscular hemoglobin (MCH) after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in mean corpuscular hemoglobin concentration (MCHC) after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in red cell distribution width (RDW) after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
- Change in mean platelet volume (MPV) after 12 weeks of supplementation with JointAlive™ compared to placebo. [12 weeks]
Eligibility Criteria
Criteria
Inclusion Criteria:
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Males and females between 40 and 75 years of age, inclusive
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BMI between 18.5 to 29.9 kg/m2, inclusive
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Female participant is not of child-bearing potential, defined as females who have undergone a sterilization procedure (e.g. hysterectomy, bilateral oophorectomy, bilateral tubal ligation, complete endometrial ablation) or have been post-menopausal for at least 1 year prior to screening Or,
Females of child-bearing potential must have a negative baseline urine pregnancy test and agree to use a medically approved method of birth control for the duration of the study. All hormonal birth control must have been in use for a minimum of three months.
Acceptable methods of birth control include:
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Hormonal contraceptives including oral contraceptives, hormone birth control patch (Ortho Evra), vaginal contraceptive ring (NuvaRing), injectable contraceptives (Depo-Provera, Lunelle), or hormone implant (Norplant System)
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Double-barrier method
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Intrauterine devices
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Non-heterosexual lifestyle or agrees to use contraception if planning on changing to heterosexual partner(s)
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Vasectomy of partner at least 6 months prior to screening
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Self-reported pain or swelling in target knee
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The diagnosis of mild to moderate osteoarthritis as confirmed by the Qualified Investigator using qualifiers based on physical exam, medical history and x-ray report qualified as mild to moderate by the radiologist
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Agrees to refrain from taking any pain relievers during the study, except acetaminophen as a rescue medication specified by the study site
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Agrees to refrain from taking rescue medication for 48 hours prior to study visits
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Agrees to maintain current diet and current exercise routine throughout the study
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Willingness to complete questionnaires, records, and diaries associated with the study and to complete all clinic visits
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Provided voluntary, written, informed consent to participate in the study
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Healthy as determined by medical history, laboratory results, and physical exam as assessed by the Qualified Investigator (QI)
Exclusion Criteria:
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Allergy, sensitivity, or intolerance to the investigational product's active or inactive ingredients
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Allergy to rescue medication
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Women who are pregnant, breast feeding, or planning to become pregnant during the study
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Clinically significant abnormal laboratory results at baseline as assessed by the QI
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Individuals who are unable to give informed consent
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Injury in the target knee within the past 3 months
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Intraarticular injections in the target knee within the past 6 months, or plan to have intraarticular injections during the study
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Individuals with knee joint diseases, such as rheumatoid arthritis, gouty arthritis, septic arthritis or any other infective arthritis
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Self-reported history of gout or pseudo gout within the past 6 months
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Skin defects (e.g. skin and soft tissue infections that cause necrosis of the skin, or post-burn contractures) and ulcers around the affected knee joint, as assessed by the QI
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History of knee surgery or replacement in the target knee, or any non-knee surgical procedures that may impact the study outcomes as assessed by the QI
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Individuals with muscle or skeletal disorders as assessed by the QI
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Unstable metabolic disease or chronic diseases as assessed by the QI
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In a state of acute exacerbation or seizure of chronic disease
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Type I or Type II diabetes
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History of or current diagnosis with severe cardiopulmonary, kidney and/or liver dysfunctions, with the exception of history of kidney stones in participants who are symptom free for 6 months
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Self-reported confirmation of current or pre-existing thyroid condition. Treatment on a stable dose of medication for at least 3 months will be considered by the QI
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Current or history of any significant diseases of the gastrointestinal tract including diarrhea or dysentery as assessed by the QI
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Significant cardiovascular event in the past 6 months. Participants with no significant cardiovascular event on stable medication may be included after assessment by the QI on a case-by-case basis
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Self-reported confirmation of medical or neuropsychological condition and/or cognitive impairment that, in the QI's opinion, could interfere with study participation
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Cancer, except skin basal cell carcinoma completely excised with no chemotherapy or radiation with a follow up that is negative. Volunteers with cancer in full remission for more than five years after diagnosis are acceptable
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Verbal confirmation of blood/bleeding disorders as assessed by the QI
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Individuals with an acute infectious disease, autoimmune disease or are immune-compromised
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Self-reported confirmation of a HIV-, Hepatitis B- and/or C-positive diagnosis
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Current use of prescribed medications listed above
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Current use of over-the-counter medications, supplements, foods and/or drinks listed above
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Use of medical cannabinoid products
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Chronic use of cannabinoid products (>2 times/week) and is unwilling to stop use for the duration of the study. Occasional use to be assessed by the QI on a case-by-case basis
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Alcohol or drug abuse within the last 12 months
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High alcohol intake (average of >2 standard drinks per day)
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Blood donation 30 days prior to screening, during the study, or a planned donation within 30 days of the last study visit
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Participation in other clinical research studies 30 days prior to screening
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Any other condition, that, in the opinion of the QI, may adversely affect the participant's ability to complete the study or its measures or pose significant risk to the participant
Participants on the following concurrent prescribed medications and/or treatments will be excluded during enrollment unless they have been taken off these therapies by their family physician. In the latter event, the frequency and route of administration of use and/or dosage may be considered by the QI on a case-by-case basis prior to recommending an appropriate washout or their enrollment in the study.
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Oral NSAIDs or topical application on the target knee
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Narcotics
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Oral corticosteroids or topical application on the target knee
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Oral analgesics except acetaminophen as a rescue medication or topical application on the target knee
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Digoxin
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Anti-hypertensive drugs
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Anticoagulants or antiplatelet drugs
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Medications used for OA treatment
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Diazepam
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | KGK Science Inc | London | Ontario | Canada | N6A 5R8 |
Sponsors and Collaborators
- Chenland Nutritionals Inc.
- KGK Science Inc.
Investigators
- Principal Investigator: David Crowley, MD, KGK Science Inc.
Study Documents (Full-Text)
None provided.More Information
Additional Information:
- FDA Drug Safety Communication: FDA strengthens warning that non-aspirin nonsteroidal anti-inflammatory drugs (NSAIDs) can cause heart attacks or strokes
- KOOS Scoring guide
Publications
- Ayhan E, Kesmezacar H, Akgun I. Intraarticular injections (corticosteroid, hyaluronic acid, platelet rich plasma) for the knee osteoarthritis. World J Orthop. 2014 Jul 18;5(3):351-61. doi: 10.5312/wjo.v5.i3.351. eCollection 2014 Jul 18. Review.
- Bai B, Li Y. Danshen prevents articular cartilage degeneration via antioxidation in rabbits with osteoarthritis. Osteoarthritis Cartilage. 2016 Mar;24(3):514-20. doi: 10.1016/j.joca.2015.10.004. Epub 2015 Oct 17.
- Berenbaum F, Grifka J, Brown JP, Zacher J, Moore A, Krammer G, Dutta D, Sloan VS. Efficacy of lumiracoxib in osteoarthritis: a review of nine studies. J Int Med Res. 2005 Jan-Feb;33(1):21-41.
- Charlesworth J, Fitzpatrick J, Perera NKP, Orchard J. Osteoarthritis- a systematic review of long-term safety implications for osteoarthritis of the knee. BMC Musculoskelet Disord. 2019 Apr 9;20(1):151. doi: 10.1186/s12891-019-2525-0.
- Chen D, Shen J, Zhao W, Wang T, Han L, Hamilton JL, Im HJ. Osteoarthritis: toward a comprehensive understanding of pathological mechanism. Bone Res. 2017 Jan 17;5:16044. doi: 10.1038/boneres.2016.44. eCollection 2017. Review.
- Chen SR, Xu XZ, Wang YH, Chen JW, Xu SW, Gu LQ, Liu PQ. Icariin derivative inhibits inflammation through suppression of p38 mitogen-activated protein kinase and nuclear factor-kappaB pathways. Biol Pharm Bull. 2010;33(8):1307-13.
- Collins NJ, Prinsen CA, Christensen R, Bartels EM, Terwee CB, Roos EM. Knee Injury and Osteoarthritis Outcome Score (KOOS): systematic review and meta-analysis of measurement properties. Osteoarthritis Cartilage. 2016 Aug;24(8):1317-29. doi: 10.1016/j.joca.2016.03.010. Epub 2016 Mar 21. Review.
- Escobar A, Quintana JM, Bilbao A, Aróstegui I, Lafuente I, Vidaurreta I. Responsiveness and clinically important differences for the WOMAC and SF-36 after total knee replacement. Osteoarthritis Cartilage. 2007 Mar;15(3):273-80. Epub 2006 Oct 17.
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- Felson DT, Hodgson R. Identifying and treating preclinical and early osteoarthritis. Rheum Dis Clin North Am. 2014 Nov;40(4):699-710. doi: 10.1016/j.rdc.2014.07.012. Epub 2014 Sep 12. Review.
- Giordano N, Fioravanti A, Papakostas P, Montella A, Giorgi G, Nuti R. The efficacy and tolerability of glucosamine sulfate in the treatment of knee osteoarthritis: A randomized, double-blind, placebo-controlled trial. Curr Ther Res Clin Exp. 2009 Jun;70(3):185-96. doi: 10.1016/j.curtheres.2009.05.004.
- Heidari B. Knee osteoarthritis prevalence, risk factors, pathogenesis and features: Part I. Caspian J Intern Med. 2011 Spring;2(2):205-12. Review.
- Helmick CG, Felson DT, Lawrence RC, Gabriel S, Hirsch R, Kwoh CK, Liang MH, Kremers HM, Mayes MD, Merkel PA, Pillemer SR, Reveille JD, Stone JH; National Arthritis Data Workgroup. Estimates of the prevalence of arthritis and other rheumatic conditions in the United States. Part I. Arthritis Rheum. 2008 Jan;58(1):15-25. doi: 10.1002/art.23177.
- Junchao Y, Zhen W, Yuan W, Liying X, Libin J, Yuanhong Z, Wei Z, Ruilin C, Lu Z. Anti- trachea inflammatory effects of diosgenin from Dioscorea nipponica through interactions with glucocorticoid receptor α. J Int Med Res. 2017 Feb;45(1):101-113. doi: 10.1177/0300060516676724. Epub 2016 Dec 7.
- Kohn MD, Sassoon AA, Fernando ND. Classifications in Brief: Kellgren-Lawrence Classification of Osteoarthritis. Clin Orthop Relat Res. 2016 Aug;474(8):1886-93. doi: 10.1007/s11999-016-4732-4. Epub 2016 Feb 12. Review.
- Litwic A, Edwards MH, Dennison EM, Cooper C. Epidemiology and burden of osteoarthritis. Br Med Bull. 2013;105:185-99. doi: 10.1093/bmb/lds038. Epub 2013 Jan 20.
- Liu MH, Sun JS, Tsai SW, Sheu SY, Chen MH. Icariin protects murine chondrocytes from lipopolysaccharide-induced inflammatory responses and extracellular matrix degradation. Nutr Res. 2010 Jan;30(1):57-65. doi: 10.1016/j.nutres.2009.10.020.
- Losina E, Paltiel AD, Weinstein AM, Yelin E, Hunter DJ, Chen SP, Klara K, Suter LG, Solomon DH, Burbine SA, Walensky RP, Katz JN. Lifetime medical costs of knee osteoarthritis management in the United States: impact of extending indications for total knee arthroplasty. Arthritis Care Res (Hoboken). 2015 Feb;67(2):203-15. doi: 10.1002/acr.22412.
- Luo Y, Zhang Y, Huang Y. Icariin Reduces Cartilage Degeneration in a Mouse Model of Osteoarthritis and is Associated with the Changes in Expression of Indian Hedgehog and Parathyroid Hormone-Related Protein. Med Sci Monit. 2018 Sep 23;24:6695-6706. doi: 10.12659/MSM.910983.
- Ma S, Zhang D, Lou H, Sun L, Ji J. Evaluation of the anti-inflammatory activities of tanshinones isolated from Salvia miltiorrhiza var. alba roots in THP-1 macrophages. J Ethnopharmacol. 2016 Jul 21;188:193-9. doi: 10.1016/j.jep.2016.05.018. Epub 2016 May 10.
- Ou-Yang SH, Jiang T, Zhu L, Yi T. Dioscorea nipponica Makino: a systematic review on its ethnobotany, phytochemical and pharmacological profiles. Chem Cent J. 2018 May 11;12(1):57. doi: 10.1186/s13065-018-0423-4. Review.
- Pan L, Zhang Y, Chen N, Yang L. Icariin Regulates Cellular Functions and Gene Expression of Osteoarthritis Patient-Derived Human Fibroblast-Like Synoviocytes. Int J Mol Sci. 2017 Dec 8;18(12). pii: E2656. doi: 10.3390/ijms18122656.
- Ren J, Fu L, Nile SH, Zhang J, Kai G. Salvia miltiorrhiza in Treating Cardiovascular Diseases: A Review on Its Pharmacological and Clinical Applications. Front Pharmacol. 2019 Jul 5;10:753. doi: 10.3389/fphar.2019.00753. eCollection 2019. Review.
- Roos EM, Lohmander LS. The Knee injury and Osteoarthritis Outcome Score (KOOS): from joint injury to osteoarthritis. Health Qual Life Outcomes. 2003 Nov 3;1:64. Review.
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