Abstract: The invention refers to the use of a sigma ligand, particularly a sigma ligand of formula (I) to prevent and/or treat opioid-induced hyperalgesia (OIH) associated to opioid therapy.

Abstract: The invention refers to the use of a sigma ligand, preferably a sigma ligand of formula (I), to prevent or treat emesis induced by a chemotherapeutic agent or radioactivity, especially emesis induced by taxanes, vinca alkaloids or platin chemotherapeutic drugs.

Abstract: The invention refers to the use of a sigma ligand, particularly a sigma ligand of formulae (I), (II) or (III) to prevent and/or treat acute and chronic pain developed as a consequence of surgery, especially superficial and/or deep pain secondary to surgical tissue injury, and peripheral neuropathic pain, neuralgia, allodynia, causalgia, hyperalgesia, hyperesthesia, hyperpathia, neuritis or neuropathy secondary to surgical procedure.

Abstract: The invention refers to a combination comprising a sigma ligand of formula (I) and an opioid or opiate for use in the prevention and/or treatment of pain developed as a consequence of surgery, especially peripheral neuropathic pain, allodynia, causalgia, hyperalgesia, hyperesthesia, hyperpathia, neuralgia, neuritis or neuropathy. The invention also refers to the sigma ligands of formula (I) for use in potentiating the analgesic effect of an opioid or opiate and/or for decreasing the dependency induced thereby when said opioid or opiate is used in the prevention and/or treatment of pain developed as a consequence of surgery.

Abstract: The invention refers to the use of a sigma ligand of formula (I) to prevent or treat pain induced by a chemotherapeutic agent, especially pain induced by taxanes, vinca alkaloids or platinum-containing chemotherapeutic drugs.

Abstract: The genome of the non-human mutant mammal, deficient in an endogenous Sigma receptor, contains a mutation that comprises a disruption in an endogenous Sigma receptor gene, wherein said gene disruption gives rise to a mutant lacking detectable levels of endogenous Sigma receptor. The mutant may be used as a control animal for in vivo tests, as well as a source of cells that can be used in in vitro tests. Mutants deficient in the Sigma-1 receptor can be used as models for in vivo study of disorders of the central nervous system, memory alterations, stress conditions and drug addictions, analgesia processes and neuroprotection. Mutants deficient in the Sigma-2 receptor can be used to study diagnostic or therapeutic tools to fight cancer and/or degenerative processes and/or to design compounds capable of preventing, reducing or alleviating the secondary pathology associated with administration of neuroleptic agents.

Abstract: The invention relates to the use of a group of sigma receptor ligands of formula (I) for the potentiation of the analgesic effect of opioids and opiates and at the same time for decreasing the dependency induced by them.

Abstract: The present invention refers to the use of compounds binding to the sigma receptor for the treatment or prevention of neuropathic pain resulting from chemotherapy.

Abstract: The present invention relates to compounds of formula (I) below having pharmacological activity towards the sigma (?) receptor, and more particularly to spiro-pyrano-pyrazole compounds, to processes of preparation of such compounds, to pharmaceutical compositions comprising them, and to their use in therapy and prophylaxis, in particular for the treatment of psychosis.

Abstract: The present invention refers to a combination of a 5HT7 receptor ligand and an opioid receptor ligand, especially of a 5HT7 receptor agonist and an opioid receptor agonist, a medicament comprising this combination, or the use of this combination for the treatment of the symptoms of pain, the prevention or the prophylaxis of the symptoms of pain.

Abstract: The present invention relates to compounds having pharmacological activity towards the sigma (?) receptor, and more particularly to some thieno-pyrano-pyrazole derivatives, to processes of preparation of such compounds, to pharmaceutical compositions comprising them, and to their use in therapy and prophylaxis, in particular for the treatment of psychosis or pain.

Abstract: The present invention relates to compounds having the structural formula below and pharmacological activity towards the sigma (?) receptor, and more particularly to pyrano-pyrazole-amines, to processes of preparing such compounds, to pharmaceutical compositions comprising them, and to their use in therapy and prophylaxis, in particular for the treatment of psychosis.