Center for Applied Medical Research (CIMA)
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Researcher in the Gene Therapy and Regulation of Gene Expression Programme and Director of Innovation and Transfer at Cima University of Navarra
Professor of Immunology at the University of Navarra, CIMA researcher and co-director of the Department of Immunology and Immunotherapy at the Clínica Universidad de Navarra.
Senior Researcher of the Gene Therapy in Neurodegenerative Diseases Programme at the Centre for Applied Medical Research (CIMA), University of Navarra
Researcher in the Solid Tumours Programme at CIMA and the Clínica Universidad de Navarra
Researcher of the Gene Therapy and Regulation of Gene Expression Programme at Cima (Centre for Applied Medical Research) University of Navarra
In 2050 there will be 25.2 million people with Parkinson's disease worldwide, which represents an increase of 112% from 2021, largely due to the ageing of the population, according to a modelling study published by The BMJ. The number of people living with this disease – prevalence across all ages – per 100,000 inhabitants is expected to increase by 76% – and by 55% when age differences are corrected.
An international team has found that aspirin is capable of reducing the appearance of metastasis in mice, by enabling the activation of T lymphocytes capable of recognising tumour cells. The research showed that several different mouse cancer models — including breast cancer, colon cancer and melanoma — treated with aspirin showed a lower rate of metastasis in other organs, such as the lungs and liver, compared to untreated mice. According to the authors, who publish the results in the journal Nature, ‘the finding paves the way for the use of more effective anti-metastatic immunotherapies’.
A team of US researchers has followed some patients treated with CAR-T therapies in a small clinical trial conducted between 2004 and 2009 to treat children with neuroblastoma, a nerve cell tumor that can have a poor prognosis. At least one of them, a woman who was treated with CAR-T as a child, remains in remission 18 years later, the longest duration of such therapy described to date. The results are published in the journal Nature Medicine.
CAR-T cell-based treatments have been successful against some blood tumours, but are much less effective for solid tumours. A phase 1 clinical trial has tested their use in 11 children and young adults with diffuse midline glioma, a tumour of the nervous system that is considered incurable. The results, published in the journal Nature, indicate that the treatment improved functional status in nine of the 11 patients. One of the four who showed a strong response is still healthy four years later.
The regulatory agencies for medicines in the United States and Europe have issued statements informing about a possible risk of developing certain types of tumors following CAR-T cell immunotherapy treatment. What do we know so far? What is the real risk? Does the benefit-risk balance still hold? Has anything changed after these alerts? We answer these questions with expert opinions and the data currently available.
CAR-T cell therapies may, in some cases, produce tumours secondary to treatment. A few months ago, the US Food and Drug Administration (FDA) said it was assessing this risk. Now, a study conducted at Stanford University Medical Center (USA) has tracked 724 patients who received this type of treatment since 2016. Of these, 14 developed another blood tumour, but only one was a T-cell lymphoma that could be a direct consequence of the therapy. Further analysis ruled out this link. The results are published in the journal NEJM.
A monoclonal antibody called prasinezumab reduces the worsening of motor symptoms in people with Parkinson's disease who have rapidly progressive disease, according to an analysis of a phase 2 clinical trial published in Nature Medicine. These findings suggest that clinical efficacy of prasinezumab, which works by binding to alpha-synuclein protein aggregates, is seen after one year of treatment in such patients. According to the authors, more research is needed to determine whether the antibody can be effective in people with slower disease progression after longer periods of treatment.
A phase 2 clinical trial in France has examined whether taking an oral anti-diabetic drug called lixisenatide - a GLP1 receptor analogue, similar to those also used for weight loss - also has an effect on the progression of Parkinson's disease. The results indicate that there is a modest but significant decrease in the progression of motor symptoms of the disease, although side effects were also observed. The results are published in the journal NEJM.
A multidisciplinary study involving several Spanish research groups has preclinically tested a new type of immunotherapy for multiple myeloma. Instead of modifying T cells to attack the tumour directly, as CAR-T cells do, they have managed to make them secrete bispecific antibodies, which bind to the tumour on one side and to other T cells on the other, attracting them to the tumour. According to the authors, this cell therapy was more effective than traditional CAR-Ts and could generate less resistance. The results are published in the journal Science Translational Medicine.
The US Food and Drug Administration (FDA) has issued a statement reporting that it has received reports of T-cell tumours in patients who received various CAR-T cell treatments. As quoted in the statement, "although the overall benefits of these products continue to outweigh their potential risks for their approved uses, FDA is investigating the identified risk of T cell malignancy with serious outcomes, including hospitalization and death, and is evaluating the need for regulatory action".