Neuropathic Pain Clinical Trial
— MESO-SDRCOfficial title:
Pilot Study to Evaluate the Effectiveness of a Mixture of Ketamine / Lidocaine Administered by Mesotherapy in the Management of Neuropathic Pain in Complex Regional Pain Syndrome Type 1 (CRPS1). A Monocentric Randomized and Controlled Clinical Study
Verified date | May 2024 |
Source | Hospices Civils de Lyon |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Complex Regional Pain Syndrome type 1 (CRPS1) is a disabling pain syndrome. Its definitive treatment has not been established and the results of current treatments are often unsatisfactory. The prognosis is difficult to establish because the vast majority of CRPS regresses within a few weeks. However, some forms are hyperalgesic with a major chronic painful picture, very debilitating and responding poorly to treatments with possible permanent sequelae. The management of CRPS remains difficult and unsatisfactory and is symptomatic, multidimensional and multidisciplinary involving medical, paramedical and socio-professional workers. The priority therapeutic objectives are analgesia, maintenance or gain of joint range and maintenance or restoration of motor functions. This treatment is not the subject of a consensus and its implementation is sometimes the responsibility of specialized centers such as "pain relief" centers or even Physical Medicine and Rehabilitation (MPR) structures. Previous studies using ketamine as a treatment for CRPS1 show encouraging results with a decrease in neuropathic pain. Ketamine is a low dose pain reliever. Ketamine has been studied as an adjuvant for the treatment of chronic pain, particularly neuropathic pain. The results suggest that ketamine decreases pain intensity and reduces opioid reliance when used as an adjunct to chronic and acute pain. Ketamine is believed to have a greater analgesic effect in patients with CRPS1 compared to other chronic pain syndromes. In these studies, ketamine was used intravenously, subcutaneously, orally, intranasally, or topically. Mesotherapy allows microdose local treatment to be carried out limiting side effects, ensuring compliance and easy to implement. The injected solutions often contain a local anesthetic (procaine or lidocaine). It allows better local tolerance from the start of treatment. In addition, through its vasodilator effect on the microcirculation, it increases the effectiveness and tolerance of other injected products. There are no studies using ketamine administrated by mesotherapy. Based on the scientific literature, there are good reasons to believe that this treatment could be effective on the neuropathic pain of CRPS1 and well tolerated.
Status | Completed |
Enrollment | 31 |
Est. completion date | January 12, 2024 |
Est. primary completion date | January 12, 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Male / female aged =18 years, - Patient suffering from Complex Regional Pain Syndrome Type 1 (CRPS1), according to the Budapest criteria, with a neuropathic component limited to the lower or upper limbs diagnosed by the Neuropathic pain DN4 Questionnaire - Patient having undergone a three-stage dynamic bone scan less than 3 months old : vascular, tissue, bone, showing diffuse and extensive hyperfixation in the area suspected of CRPS1, - Negative urinary pregnancy test in women of childbearing age, - VAS (Visual Analogue Scale) > 50mm (on a scale of 0 to 100 mm) at inclusion, - Patients affiliated to the French social security system, - Writing informed consent obtained. Exclusion Criteria: - Patient with the following medical history or ongoing pathologies: epilepsy, hypertension (> 180mm / 100mm Hg), unbalanced coronary artery disease, recent myocardial infarction (MDI) (less than 12 months), porphyria, hyperthyroidism, known Behçet's disease, known blood crass disorder or PT (Prothrombin Time) <20%, known psychiatric disorders, known septic osteoarticular disease, - Patient with HIV ((Human Immunodeficiency Viruses) infection, immunosuppression and / or immunosuppressive treatment - Severe heart failure, - History of severe allergy (angioedema), - Known allergies to Cr and Zn, - Current skin infection, - Skin lesion next to the injection area - Phobia of injections, - Known hypersensitivity to ketamine hydrochloride or chlorobutanol, - Known hypersensitivity to lidocaine hydrochloride or to amide-linked local anesthetics, - Pregnant or breastfeeding woman - Patient under protective measure (safeguard measure, curatorship, guardianship) or deprived of liberty. |
Country | Name | City | State |
---|---|---|---|
France | Department of orthopedic surgery and trauma emergencies of the lower limb, Edouard Herriot Hospital, Hospices Civils de Lyon | Lyon |
Lead Sponsor | Collaborator |
---|---|
Hospices Civils de Lyon |
France,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Visual Analogue Scale (VAS) score | Pain measured by VAS (Visual Analogue Scale) | On day 0 (inclusion) and day 56 (end of patient follow-up) | |
Secondary | Evolution of the Visual Analogue Scale score | The VAS (Visual Analogue Scale) score will be assessed at inclusion, before each mesotherapy session, and at the end of the patient follow-up | On day 0 (inclusion), on day 1, day 7, day 14 and day 28 (mesotherapy sessions), and on day 56 (end of patient follow-up) | |
Secondary | Neuropathic Pain Symptom Inventory (NPSI) self-questionnaire score | The Neuropathic pain will be assessed using the NPSI (Neuropathic Pain Symptom Inventory self-questionnaire) at inclusion, before each mesotherapy session, and at the patients withdrawal. | On day 0 (inclusion), on day 1, day 7, day 14 and day 28 (mesotherapy sessions), and on day 56 (end of the patient follow-up) | |
Secondary | Brief Pain Inventory (BPI) self-questionnaire score | The main dimensions of pain (i.e. intensity, functional disability, social and family repercussions as well as the level of psychological distress) will be assessed using the BPI (Brief Pain Inventory self-questionnaire) at inclusion and at the patients withdrawal. | On day 0 (inclusion) and on day 56 (end of patient follouw-up) | |
Secondary | Relevant adverse events | The relevant adverse events (AEs), as well as the average of the highest grades of the relevant adverse events, will be collected during the patient follow-up, in particular after each mesotherapy session. The physician will ask the patient at each of the visits and will report any adverse event (AE). The nature and intensity of the AE will be assessed according to the Common Terminology Criteria for Adverse Events grid (CTCAE version 5.0). Relevant adverse events (AEs at least possibly related to treatment or mesotherapy) will be considered. | Until day 56 (end of patient follow-up) | |
Secondary | Concomitant consumption of analgesics | The consumption of other analgesics concomitant with the treatment will be recorded | Until day 56 (end of patient follow-up) | |
Secondary | EQ-5D-5L (EuroQol health states) questionnaire score | The quality of life will be assessed using the EQ-5D-5L questionnaire (EuroQol health states) | On day 1 (inclusion) and on day 56 (end of patient follow-up) | |
Secondary | Visual Analogue Scale and Adverse Events grades (Benefit / risk balance) | To simultaneously compare the VAS (Visual Analogue Scale) and the relevant adverse events (AE) grades between groups.
This benefit-risk balance will be estimate in a hierarchical fashion using the method of pairwise comparisons. The VAS will be used as the first endpoint (benefit) and the highest grade of AE in a given patient as the second endpoint (risk). No clinical relevance threshold will be specified for the two criteria for the primary analysis, but they will then be added as a sensitivity analysis. |
Until day 56 (end of patient follow-up) |
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