Abstract Introduction. TECAR therapy (TTp) is a form of physical therapy acting at the level of tissue metabolism. The theoretical operating principle is the production of endogenous heat starting from the extracorporeal application of an oscillating magnetic field. The TECAR therapy treatment involves the synergy of the action of physical energy with the common methods of manual therapy (pompages, mobilization, massage therapy, etc.) and is used in acute and chronic osteoarticular diseases. Although patients and nurses commonly report an optimal response in terms of rapid pain reduction, there is currently no scientific evidence to clearly demonstrate its efficacy. The objective of the present work is therefore to evaluate the efficacy of TTp in a group of patients suffering from chronic low back pain. Materials and methods. 30 patients of both sexes with chronic exacerbated pain (VAS ≥ 5 in the last week) aged between 30 and 65 years were randomized into 2 groups: group A (TTp plus Massotherapy: 8 sessions 3 per week); group B (Placebo - switched off device - plus Massotherapy: 8 sessions 3 per week). The treatments of the 2 groups were carried out by the same physiotherapist. The evaluation was performed by an evaluating doctor, blinded to the treatment assigned. The following scales were used for the evaluation: VAS scale for pain assessment; Roland and Morris Disability Questionnaire to study the degree of disability; EUROQoL for the evaluation of the quality of life. Clinical checks were performed before treatment, at the fifth (T2) and at the last treatment session (T3), at 3 months (T4) and at 6 months (T5) after the end of treatment. Results. Preliminary results indicate for patients in group A a greater efficacy in the management of middle-grade pain with a significant decrease in its perception in short-term controls.