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NCT06956508
This prospective study seeks to evaluate the effectiveness of prophylactic Targeted Brain Rehabilitation (TBR) in preventing or reducing Phantom Limb Pain (PLP).
NCT07431944
Neuroma-related pain is a frequent and disabling condition after limb trauma and amputation. Available treatments often provide short-lasting or insufficient analgesia. The SILENCE-NEUROMA Trial is a multicenter, randomized, double-blind, active-controlled study designed to compare the efficacy and safety of botulinum toxin type A versus local anesthetic injection for the treatment of neuroma-related pain. The primary outcome is pain reduction at 8 weeks after treatment.
NCT07432685
Combat-related extremity trauma frequently results in persistent pain, including neuropathic, residual limb, and phantom limb pain. The kinematics of injury-including energy level, direction of force, and dominant force components-may independently predict tissue deformation, nerve stress, and the transition from acute to chronic- pain. This prospective observational cohort study will assess whether kinematics-only variables predict chronic pain outcomes after combat-related upper and lower limb injuries. Pain outcomes will include pain intensity, pain extent (surface/area), neuropathic pain features, and mechanical pain sensitivity measured using von Frey filaments.
NCT07420192
This prospective, observational cohort study evaluates the long-term outcomes of Regenerative Peripheral Nerve Interface (RPNI) surgery in patients with major lower extremity amputations suffering from symptomatic neuromas. RPNI is a surgical technique where the transected nerve end is implanted into a free autologous muscle graft to serve as a physiological target for reinnervation. The study aims to objectively assess the reduction in mechanical hypersensitivity using Pressure Pain Threshold (PPT) measurements via a digital algometer. Additionally, it monitors subjective neuropathic pain levels, functional mobility, and prosthesis satisfaction over a 24-month follow-up period compared to pre-operative baselines.
NCT07324109
This study tests whether a vibration-based feedback device (Suralis) can reduce phantom limb pain in people with lower-leg amputations over 3 weeks. Participants wear the device daily and report pain levels, walking ability, and quality of life - with no known risks, as it's a CE-certified medical device. If pain improves, the study team will help participants apply for insurance coverage to keep using the system long-term. The goal is to offer a simple, non-drug option that may help ease chronic pain and improve daily function for amputees. Participation is voluntary and can be stopped anytime without affecting medical care.
NCT07139483
Background: Most amputees experience phantom limb pain (PLP), for years after amputation. Virtually all PLP research to date has focused on the mechanisms of chronic PLP, ignoring the mechanisms of chronification. This research project will focus on combined neuromodulatory interventions of mirror therapy (MT) and trans direct-cranial stimulation (tDCS), applied for the first time at the acute state of PLP, with an aim to prevent its chronification and chronicity. In PLP, maladaptive plasticity associated with sensory deafferentation following an amputation is one of the contributors for excessive pain. MT is a well-accepted yet limited option, which is thought to counterbalance abnormal plasticity. tDCS is an emerging approach believed to affect the membrane potential and activity threshold of cortical neurons. tDCS analgesic effectiveness, however, is mild and short, rendering it a noneffective stand-alone treatment. The researchers' objectives are to investigate whether the combined therapy of MT and tDCS will prevent chronic PLP and improve its related clinical characteristics. In addition, the researchers will investigate the behavioral manifestations effects of the combined treatment. The investigators expect that the combined treatment applied at the acute stage of PLP will have synergistic effects on PLP intensity and thus avert its chronification. In addition, it will reduce phantom sensations, and negative affect, and will improve the sense of body ownership and agency and endogenous inhibition efficiency. Research design: This randomized-controlled double-blinded study will be held at Israel's 3 largest rehabilitation centers. The study consists of 3 randomized patient arms (36 in each): (1) no-intervention, natural-course group; (2) MT + sham tDCS; (3) MT + real tDCS. MT and tDCS neuromodulatory interferences will be self-administered and consist of 20 sessions, completed during 4 weeks. The researchers outcome measures include: primary outcome: pain intensity, network-related behavioral markers, and amputation-related clinical characteristics. The data gathered will be collected at 5 timepoints. Research novelty and innovation: The researchers proposed model will provide insights on the prevention of PLP and, potentially, other neurological pathologies involving the dysfunction of sensory systems and integration and body perception.