There is a substantial body of evidences that support the rationale for percutaneous cryotherapy in the treatment of painful musculoskeletal metastasis. Since the available results are based exclusively on retrospective and single-arm prospective studies, all authors agree that preliminary data deserves further investigation to provide high level evidences.~Current knowledge, along with the need for relieving patients' pain, already leads interventional radiologists to introduce analgesic cryotherapy in their routine practice. Our team usually notes a clinically significant pain relief that is immediate, continuous and prolonged in these patients. However, facing the lack of comparative studies, this technique is still proposed to patients with poor life-expectancy.~Percutaneous cryotherapy is an innovative strategy in the treatment of patients with uncontrolled painful metastases. It could provide a significant and durable pain relief and a better quality of life, earlier in the patient's care pathway.~The study group hypotheses that an early procedure of percutaneous cryotherapy is able to provide painful patients with better and prolonged analgesia and quality of life.~A prospective controlled study is proposed with two analgesic strategies (percutaneous cryotherapy plus medical supportive care versus medical supportive care alone) in patients with a painful metastasis not controlled by conventional analgesia strategy.
The primary objective of this trial is to compare the efficacy of 2 analgesic strategies, based on percutaneous cryotherapy plus medical supportive care versus medical supportive care alone in the treatment of cancer patients with painful musculoskeletal metastasis.