- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01508676
Effects of Pennsaid on Clinical Neuropathic Pain
The purpose of this study is to see if the drug Pennsaid (Diclofenac) can help reduce pain felt by people with chronic nerve pain. The drug will be used 2-4 times each day for 2 weeks.
The U.S. Food and Drug Administration (FDA) has approved Pennsaid to treat osteoarthritis (bone pain), but the FDA has not approved Pennsaid to treat neuropathic (nerve) pain.
The research study will compare Pennsaid to placebo.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The research study will compare Pennsaid to placebo. The placebo looks like Pennsaid, but it doesn't contain any Pennsaid. The investigators use placebos in research to see if the results are due to the study drug or to other reasons. At some time during the study the investigators will give the patient Pennsaid. At another time, the investigators will give the patient placebo. The investigators are using Quantitative Sensory Testing (QST), which is temperature testing before and after using the study drug to see if Pennsaid is helpful in reducing people's nerve pain.
In this test, a small metal plate, about the size of a matchbox, is put on the area where the patient has pain. The plate is connected to a computer that can warm or cool the plate. The patient will use a computer mouse button to tell us when the plate feels warm. The QST machine is approved by the Food and Drug Administration (FDA). It is often used by nerve doctors to see if a person has neuropathy (pain caused by damage to a nerve).
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Massachusetts
-
Boston, Massachusetts, United States, 02114
- MGH Center for Translational Pain Research
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Subject will be between 18 and 80 years of age.
- Subject has not been on Pennsaid or other topical non-steroid anti-inflammatory drugs for at least one month.
- Subject agrees to make no change in his/her current pain medications during the entire study period. This requirement will ensure that valid comparisons of primary and secondary measures can be made before and after the study.
- Subject has a VAS pain score of 4 or above at the beginning of the study.
- Subject has had a neuropathic pain condition such as those listed above for at least three months. This requirement is to avoid clinical uncertainty from an unstable pain condition and to minimize the study variation.
- Female subjects of childbearing age must have a negative urine pregnancy test at the initial visit.
Exclusion Criteria:
- Subject has documented severe liver or renal disease that will affect the elimination of Pennsaid or is subject to the adverse effect of Pennsaid on these organs. (Renal dysfunction is defined as eGFR < 60. Hepatic dysfunction is defined as LFTs ≥ 3X ULN.)
- Subject has pending litigation related to the neuropathic pain condition.
- Subject has active skin lesion or open wound at the site of Pennsaid application (e.g., active shingles with skin lesions).
- Subject is pregnant or lactating.
- Subject has scar tissue or sensory deficit at the site of QST.
- Subject is allergic to diclofenac or has cross-sensitivity to other non-steroid anti-inflammatory drugs.
- Subject has a positive urine (illicit) drug test.
- Subjects who experience asthma, urticaria or an allergic type reaction when taking aspirin or NSAIDs.
- Subjects undergoing coronary artery bypass surgery.
- Subject with a known history of cardiovascular disease, ulcer, gastrointestinal bleed or impaired renal function.
- Subjects currently using NSAIDS.
Study Plan
How is the study designed?
Design Details
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Pennsaid Phase I
Pennsaid (20-40 drops; 2-4 times daily) Upon completion of the first phase, subjects in each arm will be crossed over (i.e., from placebo to Pennsaid and vise versa).
Pennsaid or placebo lotion will be packed in a container with identical appearance before being dispensed to study subjects.
|
Other Names:
|
Placebo Comparator: Placebo Phase I
Study subject will topically apply placebo lotion (20-40 drops) 2-4 times daily to the painful area for the next two weeks.
The dose titration will be based on the size of painful area (approximately 10 drops for every 4 square inches).
Subjects will be asked to fill in a daily pain diary and report any side effects to the research center.
A phone number and a beeper number will be provided to subjects.
|
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
VAS After Treatment
Time Frame: 2 weeks.
|
Subjects rated their pain using the Visual Analog Scale after a 2 week phase of using pennsaid lotion and after a 2 week phase of using placebo lotion. The Visual Analog Scale is subject reported on a scale of 0-10 with 0 being no pain, and 10 being the worst pain they can imagine. Results reported are an average of reported VAS scores for the 28 subjects who completed both phase I and phase II of the study. |
2 weeks.
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Clinical Neuropathic Pain Features- Burning After Treatment
Time Frame: 2 weeks
|
Subjects rated their "burning pain" using the Visual Analog Scale after a 2 week phase of using pennsaid lotion and after a 2 week phase of using placebo lotion. The Visual Analog Scale is subject reported on a scale of 0-10 with 0 being no pain, and 10 being the worst pain they can imagine. Results reported are an average of reported VAS scores for the 28 subjects who completed both phase I and phase II of the study. |
2 weeks
|
Clinical Neuropathic Pain Features- Constant Pain and Hypersensitivity After Treatment
Time Frame: 2 weeks
|
Subjects rated their "constant pain" and "hypersensitivity" using the Visual Analog Scale after a 2 week phase of using pennsaid lotion and after a 2 week phase of using placebo lotion. The Visual Analog Scale is subject reported on a scale of 0-10 with 0 being no pain, and 10 being the worst pain they can imagine. Results reported are an average of reported VAS scores for the 28 subjects who completed both phase I and phase II of the study. |
2 weeks
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Jianren Mao, M.D., Ph.D., DACCPM
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Nervous System Diseases
- Pain
- Neurologic Manifestations
- Neuromuscular Diseases
- Peripheral Nervous System Diseases
- Autonomic Nervous System Diseases
- Neuralgia
- Complex Regional Pain Syndromes
- Reflex Sympathetic Dystrophy
- Neuralgia, Postherpetic
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Peripheral Nervous System Agents
- Enzyme Inhibitors
- Analgesics
- Sensory System Agents
- Anti-Inflammatory Agents, Non-Steroidal
- Analgesics, Non-Narcotic
- Antirheumatic Agents
- Cyclooxygenase Inhibitors
- Anti-Inflammatory Agents
- Pharmaceutical Solutions
- Diclofenac
Other Study ID Numbers
- 2011p000897
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Neuralgia
-
Pfizer's Upjohn has merged with Mylan to form Viatris...CompletedPost Herpetic NeuralgiaUnited States, Colombia, South Africa, Hong Kong, Ukraine, Bulgaria, Croatia, India, Sweden, Czechia, Denmark, Germany, Poland, Russian Federation, Serbia, Slovakia, Taiwan
-
Bial - Portela C S.A.Terminated
-
Odense University HospitalCompletedPost Herpetic NeuralgiaDenmark
-
DepomedCompletedPost Herpetic NeuralgiaUnited States
-
PfizerCompletedPostherpetic NeuralgiaUnited States
-
Yonsei UniversityWithdrawnThe Evaluation of Erector Spinae Plane Block for the Pain Control of Thoracic Postherpetic NeuralgiaThoracic Postherpetic NeuralgiaKorea, Republic of
-
Pfizer's Upjohn has merged with Mylan to form Viatris...CompletedPostherpetic Neuralgia ( PHN )China
-
Bial - Portela C S.A.Completed
-
Grünenthal GmbHCompletedPost Herpetic Neuralgia
-
Novartis PharmaceuticalsTerminatedPost-herpetic NeuralgiaAustralia, Taiwan, Germany, France, Portugal, Czechia, United Kingdom, Hungary, Spain, Slovakia, Japan, Canada, Denmark, Norway, Austria, Belgium, Poland, Italy, Korea, Republic of
Clinical Trials on Pennsaid
-
Central South UniversityRecruiting
-
Nathan Wei, MD, FACP, FACR:Medtronic - MITG; Arthritis Treatment Center, MarylandCompletedOsteoarthritis of the Knee | CoagulopathyUnited States
-
University of UtahMedtronic - MITGWithdrawnPain | Ankle SprainUnited States
-
Supernus Pharmaceuticals, Inc.CompletedAttention-Deficit/Hyperactivity Disorder (ADHD)United States
-
MallinckrodtCompletedOsteoarthritis of the KneeUnited States
-
Joanneum Research Forschungsgesellschaft mbHCompleted