OsteoarthritisPhase 4NCT00484718
Measuring Gait And Self-Reported Pain In Patients With Osteoarthritis Of The Knee Using Placebo/Oxycodone/Celecoxib.
A Phase 4 study testing celecoxib and Oxycodone in people with Osteoarthritis, run by Pfizer at 2 sites in United States.
Trial summary
The Purpose of this trial is to evaluate the use of a cross-over trial design in an osteoarthritis population. We will determine the inter- and intra-subject variability in osteoarthritis (OA) endpoints and evaluate if efficacy can be detected by measuring OA endpoints following treatment with 2 different types of… Read more about this study
- Who is it for?
- Ages 40 to 70 years
- Conditions the study is for
- Osteoarthritis
- What is being tested?
- celecoxib and Oxycodone
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 6 participants
- Where
- 2 sitesUnited States
- Study dates
- 17 Jan 2008to 10 Jun 2009
- Phase
- Phase 4
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 40 to 70 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Subject has been taking an NSAID at least 15 of the past 30 days for index knee pain
- Grades 2 or 3 OA as defined by the Kellgren and Lawrence Grading System of the medial tibiofemoral joint (joint space narrowing in the medial compartment > lateral compartment as assessed by x-ray) using the Altman Atlas of OA7. This must be documented with a report from an x-ray of the study joint taken either at screening or within 1 year prior to screening
- Subject meets American College of Rheumatology (ACR) clinical classification criteria for osteoarthritis of the knee, defined by the following: Knee pain and at least 3 of the following: oAge >50 oMorning stiffness <30 minutes oCrepitus on active motion oBony tenderness oBony enlargement oNo palpable warmth of synovium.
Who cannot join
- Subject has a documented history of an allergic reaction (hives, rash, etc.) or a clinically significant intolerance to celecoxib, sulfonamides, aspirin, or opioids including oxycodone
- Significant pain outside the index knee, including significant hip or back pain that can not be distinguished from OA pain or that interferes with ability to walk. (Patients with bilateral knee OA will be allowed into the study. The index knee should be defined as the more painful knee
- Predominantly patellofemoral knee osteoarthritis in the index knee as assessed by clinical examination
- Subject who are unable to discontinue all formulations of prior analgesics other than acetaminophen during the Washout Period of the study, or who are anticipated to be unable to discontinue rescue medication for 24 hours prior to the respective visits. (Low dose aspirin may be taken for cardiac prophylaxis
- Excessive signal knee joint laxity indicative of functional ligamentous deficiency
Trial locations and contacts
2 sites in 1 country.
United States2 sites
VAPAHCS
Palo Alto, California, 94304-1290
Stanford University
Stanford, California, 94305
About this study
Official title: MEASURES OF GAIT AND SELF-REPORTED PAIN IN PATIENTS WITH OSTEOARTHRITIS OF THE KNEE: A RANDOMIZED, SINGLE-BLIND WASHOUT, DOUBLE-BLIND TREATMENT, DOUBLE DUMMY CROSS-OVER PILOT TRIAL USING PLACEBO, OXYCODONE AND CELECOXIB (A9011030)
The Purpose of this trial is to evaluate the use of a cross-over trial design in an osteoarthritis population. We will determine the inter- and intra-subject variability in osteoarthritis (OA) endpoints and evaluate if efficacy can be detected by measuring OA endpoints following treatment with 2 different types of analgesics in a crossover study of this design.
Read the detailed description
Methodology study to evaluate the use of a cross over design and gait analysis. The study was terminated by mutual consent with the study site at a meeting on the 1 April 2009, because of slow recruitment due to a high screen fail rate. The study was not stopped for safety reasons.
- Conditions
- Osteoarthritis
- Medical subject headings
- Osteoarthritis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| A | Active comparator | Not described Receives: Drug: celecoxib |
| B | Active comparator | Not described Receives: Drug: Oxycodone |
| C | Placebo comparator | Not described Receives: Drug: placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline in Knee Pain Intensity Measured by Numeric Rating Scale (NRS) at Week 12
The severity of arthritis pain in participant's signal knee at the time of the visit was assessed using an 11-point NRS, ranging from 0 (no pain) to 10 (worst possible pain), where higher scores indicate worse pain.
Measured: Baseline, Week 12
Change From Baseline in Knee Pain Intensity Measured by Visual Analog Scale (VAS) at Week 12
The severity of arthritis pain in participant's signal knee was assessed using a 100-millimeter (mm) VAS ranging from 0 mm = no pain and 100 mm = most severe pain. Higher score indicate more pain.
Measured: Baseline, Week 12
Change From Baseline in Western Ontario and McMaster (WOMAC) Osteoarthritis Index Pain Subscale Score at Week 12
WOMAC: Self-administered, disease-specific questionnaire, which assesses clinically important, participant-relevant symptoms for pain, stiffness and physical function in participants with osteoarthritis (OA of the hip and/or knee). The index consists of 24 questions (5 pain, 2 stiffness, and 17 physical function). The WOMAC pain subscale is a 5-item questionnaire used to assess the amount of pain experienced due to OA of to be replaced/replaced index joint (knee or hip) during past 48 hours. The WOMAC pain subscale score for each question ranges from 0 (minimum) to 4 (maximum), higher scores signifies worse pain. Pain subscale total score ranges from 0 to 20, with higher scores indicating worse pain.
Measured: Baseline, Week 12
Change From Baseline in Western Ontario and McMaster (WOMAC) Osteoarthritis Index Physical Function Subscale Score at Week 12
WOMAC: Self-administered, disease-specific questionnaire, which assesses clinically important, participant-relevant symptoms for pain, stiffness and physical function in participants with osteoarthritis (OA of the hip and/or knee). Physical function refers to participant's ability to move around and perform usual activities of daily living. The WOMAC physical function subscale is a 17-item questionnaire used to assess the degree of difficulty experienced due to OA in in the study joint during past 48 hours. The WOMAC physical function subscale score for each question ranges from 0 (minimum) to 4 (maximum), higher scores signifies worse physical function. Physical function subscale scores range from 0 to 68, where higher scores indicated more difficulty in performing daily activities.
Measured: Baseline, Week 12
Change From Baseline in Western Ontario and McMaster (WOMAC) Osteoarthritis Index Stiffness Subscale Score at Week 12
WOMAC: Self-administered, disease-specific questionnaire, which assesses clinically important, participant-relevant symptoms for pain, stiffness and physical function in participants with osteoarthritis (OA of the hip and/or knee). Stiffness was defined as a sensation of decreased ease of movement in study joint. The WOMAC stiffness subscale is a 2-item questionnaire used to assess the amount of stiffness experienced due to OA in the in the study joint during the past 48 hours. The WOMAC stiffness subscale score for each question ranges from 0 (minimum) to 4 (maximum), higher scores signifies worse stiffness. The stiffness subscale score ranges from 0 to 8, where higher scores indicated worse stiffness.
Measured: Baseline, Week 12
Change From Baseline in Western Ontario and McMaster (WOMAC) Osteoarthritis Index Total Score at Week 12
WOMAC: Self-administered, disease-specific questionnaire, which assesses clinically important, participant-relevant symptoms for pain, stiffness and physical function in participants with osteoarthritis (OA of the hip and/or knee). The WOMAC composite index was the sum of 24 individual questions regarding subscales of pain, stiffness and physical function (for each item score range: 0 [minimum] to 4 [maximum], higher score indicating worse study joint condition). Total score was sum of the 3 subscale scores, giving a possible overall score range of 0 (minimum) to 96 (maximum). Higher score indicating the worse level of pain, stiffness and physical function.
Measured: Baseline, Week 12
Change From Baseline in Knee Adduction Moment at Week 12
Adduction (external) moment was defined as the ground-generated torque that forces the distal tibia toward the midline of the body, which forces the knee away from the midline, into a varus or "bow-legged" position. External knee adduction moment was assessed as percent body weight*height (%BW*ht).
Measured: Baseline, Week 12
Change From Baseline in Quadriceps Inhibition at Week 12
Quadriceps inhibition was assessed in terms of flexion-extension range of motion and normalized mid stance knee flexion angle in degrees.
Measured: Baseline, Week 12
Change From Baseline in Peak Ground Reaction Force at Week 12
Change from baseline in peak ground reaction force in body weight*seconds (BW*sec) was assessed with the help of a multicomponent force plate.
Measured: Baseline, Week 12
Change From Baseline in Total Ground Reaction Force at Week 12
Change from baseline in total ground reaction force in body weight*seconds was assessed with the help of a multicomponent force plate.
Measured: Baseline, Week 12
Change From Baseline in Stride Length at Week 12
The level walking was assessed by stride length; assessment was done based on 6 stride cycles over a range of walking speeds.
Measured: Baseline, Week 12
Change From Baseline in Walking Speed at Week 12
Change from baseline in walking speed in meters per second was assessed.
Measured: Baseline, Week 12
Change From Baseline in Cadence at Week 12
Cadence was defined as the rate at which a person walk, expressed in steps per minute.
Measured: Baseline, Week 12
Change From Baseline in Patient Global Assessment of Arthritic Condition (PGAAC) Score at Week 12
The PGAAC is self-administered measure in which participants answered the following question: "considering all the ways the OA in your signal knee affects you, how are you doing today?". Participants rated their condition using the following scale: 1= very good (no symptoms and no limitation of normal activities); 2= good (mild symptoms and no limitation of normal activities); 3= fair (moderate symptoms and limitation of some normal activities); 4= poor (severe symptoms and inability to carry out most normal activities); 5= very poor (very severe symptoms which are intolerable and inability to carry out all normal activities). Higher score indicated severe condition.
Measured: Baseline, Week 12
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Jun 2007 (estimated)
- Study start17 Jan 2008
- Primary completion10 Jun 2009
- Study completion10 Jun 2009
Why it stopped: See termination reason in detailed description.
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for OsteoarthritisStudies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 6 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00484718
- Sponsor's protocol ID
- A9011030
- Status last verified
- Mar 2021
- First submitted
- 8 Jun 2007
- Last updated
- 14 Apr 2021
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- Individual data sharing
- No: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.
Publications
Asay JL, Boyer KA, Andriacchi TP. Repeatability of gait analysis for measuring knee osteoarthritis pain in patients with severe chronic pain. J Orthop Res. 2013 Jul;31(7):1007-12. doi: 10.1002/jor.22228. Epub 2013 Mar 18.
PubMed 23508626Boyer KA, Angst MS, Asay J, Giori NJ, Andriacchi TP. Sensitivity of gait parameters to the effects of anti-inflammatory and opioid treatments in knee osteoarthritis patients. J Orthop Res. 2012 Jul;30(7):1118-24. doi: 10.1002/jor.22037. Epub 2011 Dec 16.
PubMed 22179861
Study at a glance
From the registry record, last updated by the sponsor on 14 Apr 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- MEASURES OF GAIT AND SELF-REPORTED PAIN IN PATIENTS WITH OSTEOARTHRITIS OF THE KNEE: A RANDOMIZED, SINGLE-BLIND WASHOUT, DOUBLE-BLIND TREATMENT, DOUBLE DUMMY CROSS-OVER PILOT TRIAL USING PLACEBO, OXYCODONE AND CELECOXIB (A9011030)
- ClinicalTrials.gov ID
- NCT00484718
- Acronym / sponsor ID
- A9011030
- Conditions
- Osteoarthritis
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: See termination reason in detailed description.
- Enrolment
- 6 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- 17 Jan 2008 (actual)
- Primary completion
- 10 Jun 2009 (actual)
- Study completion
- 10 Jun 2009 (actual)
- First posted
- 11 Jun 2007 (estimated)
- Results
- Posted 14 Apr 2021
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The Purpose of this trial is to evaluate the use of a cross-over trial design in an osteoarthritis population. We will determine the inter- and intra-subject variability in osteoarthritis (OA) endpoints and evaluate if efficacy can be detected by measuring OA endpoints following treatment with 2 different types of analgesics in a crossover study of this design.
Detailed description
Methodology study to evaluate the use of a cross over design and gait analysis. The study was terminated by mutual consent with the study site at a meeting on the 1 April 2009, because of slow recruitment due to a high screen fail rate. The study was not stopped for safety reasons.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind (participant, investigator)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| A | Active comparator | Drug: celecoxib |
| B | Active comparator | Drug: Oxycodone |
| C | Placebo comparator | Drug: placebo |
Who may qualify
- Ages
- 40 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Subject has been taking an NSAID at least 15 of the past 30 days for index knee pain
- Grades 2 or 3 OA as defined by the Kellgren and Lawrence Grading System of the medial tibiofemoral joint (joint space narrowing in the medial compartment > lateral compartment as assessed by x-ray) using the Altman Atlas of OA7. This must be documented with a report from an x-ray of the study joint taken either at screening or within 1 year prior to screening
- Subject meets American College of Rheumatology (ACR) clinical classification criteria for osteoarthritis of the knee, defined by the following: Knee pain and at least 3 of the following: oAge >50 oMorning stiffness <30 minutes oCrepitus on active motion oBony tenderness oBony enlargement oNo palpable warmth of synovium.
Key exclusion criteria (5 listed)
- Subject has a documented history of an allergic reaction (hives, rash, etc.) or a clinically significant intolerance to celecoxib, sulfonamides, aspirin, or opioids including oxycodone
- Significant pain outside the index knee, including significant hip or back pain that can not be distinguished from OA pain or that interferes with ability to walk. (Patients with bilateral knee OA will be allowed into the study. The index knee should be defined as the more painful knee
- Predominantly patellofemoral knee osteoarthritis in the index knee as assessed by clinical examination
- Subject who are unable to discontinue all formulations of prior analgesics other than acetaminophen during the Washout Period of the study, or who are anticipated to be unable to discontinue rescue medication for 24 hours prior to the respective visits. (Low dose aspirin may be taken for cardiac prophylaxis
- Excessive signal knee joint laxity indicative of functional ligamentous deficiency
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| celecoxiboral, 100 mg bid | Drug | A |
| Oxycodoneoral, 20 mg bid | Drug | B |
| placebooral bid | Drug | C |
Primary outcome
Change From Baseline in Knee Pain Intensity Measured by Numeric Rating Scale (NRS) at Week 12
Time frame: Baseline, Week 12
The severity of arthritis pain in participant's signal knee at the time of the visit was assessed using an 11-point NRS, ranging from 0 (no pain) to 10 (worst possible pain), where higher scores indicate worse pain.
Change From Baseline in Knee Pain Intensity Measured by Visual Analog Scale (VAS) at Week 12
Time frame: Baseline, Week 12
The severity of arthritis pain in participant's signal knee was assessed using a 100-millimeter (mm) VAS ranging from 0 mm = no pain and 100 mm = most severe pain. Higher score indicate more pain.
Change From Baseline in Western Ontario and McMaster (WOMAC) Osteoarthritis Index Pain Subscale Score at Week 12
Time frame: Baseline, Week 12
WOMAC: Self-administered, disease-specific questionnaire, which assesses clinically important, participant-relevant symptoms for pain, stiffness and physical function in participants with osteoarthritis (OA of the hip and/or knee). The index consists of 24 questions (5 pain, 2 stiffness, and 17 physical function). The WOMAC pain subscale is a 5-item questionnaire used to assess the amount of pain experienced due to OA of to be replaced/replaced index joint (knee or hip) during past 48 hours. The WOMAC pain subscale score for each question ranges from 0 (minimum) to 4 (maximum), higher scores signifies worse pain. Pain subscale total score ranges from 0 to 20, with higher scores indicating worse pain.
Change From Baseline in Western Ontario and McMaster (WOMAC) Osteoarthritis Index Physical Function Subscale Score at Week 12
Time frame: Baseline, Week 12
WOMAC: Self-administered, disease-specific questionnaire, which assesses clinically important, participant-relevant symptoms for pain, stiffness and physical function in participants with osteoarthritis (OA of the hip and/or knee). Physical function refers to participant's ability to move around and perform usual activities of daily living. The WOMAC physical function subscale is a 17-item questionnaire used to assess the degree of difficulty experienced due to OA in in the study joint during past 48 hours. The WOMAC physical function subscale score for each question ranges from 0 (minimum) to 4 (maximum), higher scores signifies worse physical function. Physical function subscale scores range from 0 to 68, where higher scores indicated more difficulty in performing daily activities.
Change From Baseline in Western Ontario and McMaster (WOMAC) Osteoarthritis Index Stiffness Subscale Score at Week 12
Time frame: Baseline, Week 12
WOMAC: Self-administered, disease-specific questionnaire, which assesses clinically important, participant-relevant symptoms for pain, stiffness and physical function in participants with osteoarthritis (OA of the hip and/or knee). Stiffness was defined as a sensation of decreased ease of movement in study joint. The WOMAC stiffness subscale is a 2-item questionnaire used to assess the amount of stiffness experienced due to OA in the in the study joint during the past 48 hours. The WOMAC stiffness subscale score for each question ranges from 0 (minimum) to 4 (maximum), higher scores signifies worse stiffness. The stiffness subscale score ranges from 0 to 8, where higher scores indicated worse stiffness.
Change From Baseline in Western Ontario and McMaster (WOMAC) Osteoarthritis Index Total Score at Week 12
Time frame: Baseline, Week 12
WOMAC: Self-administered, disease-specific questionnaire, which assesses clinically important, participant-relevant symptoms for pain, stiffness and physical function in participants with osteoarthritis (OA of the hip and/or knee). The WOMAC composite index was the sum of 24 individual questions regarding subscales of pain, stiffness and physical function (for each item score range: 0 [minimum] to 4 [maximum], higher score indicating worse study joint condition). Total score was sum of the 3 subscale scores, giving a possible overall score range of 0 (minimum) to 96 (maximum). Higher score indicating the worse level of pain, stiffness and physical function.
Change From Baseline in Knee Adduction Moment at Week 12
Time frame: Baseline, Week 12
Adduction (external) moment was defined as the ground-generated torque that forces the distal tibia toward the midline of the body, which forces the knee away from the midline, into a varus or "bow-legged" position. External knee adduction moment was assessed as percent body weight*height (%BW*ht).
Change From Baseline in Quadriceps Inhibition at Week 12
Time frame: Baseline, Week 12
Quadriceps inhibition was assessed in terms of flexion-extension range of motion and normalized mid stance knee flexion angle in degrees.
Change From Baseline in Peak Ground Reaction Force at Week 12
Time frame: Baseline, Week 12
Change from baseline in peak ground reaction force in body weight*seconds (BW*sec) was assessed with the help of a multicomponent force plate.
Change From Baseline in Total Ground Reaction Force at Week 12
Time frame: Baseline, Week 12
Change from baseline in total ground reaction force in body weight*seconds was assessed with the help of a multicomponent force plate.
Change From Baseline in Stride Length at Week 12
Time frame: Baseline, Week 12
The level walking was assessed by stride length; assessment was done based on 6 stride cycles over a range of walking speeds.
Change From Baseline in Walking Speed at Week 12
Time frame: Baseline, Week 12
Change from baseline in walking speed in meters per second was assessed.
Change From Baseline in Cadence at Week 12
Time frame: Baseline, Week 12
Cadence was defined as the rate at which a person walk, expressed in steps per minute.
Change From Baseline in Patient Global Assessment of Arthritic Condition (PGAAC) Score at Week 12
Time frame: Baseline, Week 12
The PGAAC is self-administered measure in which participants answered the following question: "considering all the ways the OA in your signal knee affects you, how are you doing today?". Participants rated their condition using the following scale: 1= very good (no symptoms and no limitation of normal activities); 2= good (mild symptoms and no limitation of normal activities); 3= fair (moderate symptoms and limitation of some normal activities); 4= poor (severe symptoms and inability to carry out most normal activities); 5= very poor (very severe symptoms which are intolerable and inability to carry out all normal activities). Higher score indicated severe condition.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Apr 2021.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 23508626Asay JL, Boyer KA, Andriacchi TP. Repeatability of gait analysis for measuring knee osteoarthritis pain in patients with severe chronic pain. J Orthop Res. 2013 Jul;31(7):1007-12. doi: 10.1002/jor.22228. Epub 2013 Mar 18.
- Derived from this study: PubMed 22179861Boyer KA, Angst MS, Asay J, Giori NJ, Andriacchi TP. Sensitivity of gait parameters to the effects of anti-inflammatory and opioid treatments in knee osteoarthritis patients. J Orthop Res. 2012 Jul;30(7):1118-24. doi: 10.1002/jor.22037. Epub 2011 Dec 16.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
- Individual participant dataSharing planned: No. Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Pfizer CT.gov Call Center study director
Pfizer
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing celecoxib and Oxycodone in people with Osteoarthritis, run by Pfizer at 2 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: stopped early, as of the sponsor's last update on 14 Apr 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 14 Apr 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change From Baseline in Knee Pain Intensity Measured by Numeric Rating Scale (NRS) at Week 12 (time frame: Baseline, Week 12). The study lists 14 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00484718, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Apr 2021.