“Although the U.S. Food and Drug Administration (FDA) has recently approved the use of aripiprazole and risperidone for adolescents with schizophrenia, few controlled data are available to help guide clinicians regarding the management of children and adolescents with schizophrenia who fail to respond to these standard 'first-line' antipsychotic treatments,” according to Dr. Sanjiv Kumra. Dr. Kumra is one of the authors of a new study to be published in the March 1st issue of Biological Psychiatry, which was undertaken to help fill this gap in knowledge.
The authors recruited 39 children, 10-18 years of age, who had already failed to respond to at least two antipsychotic treatments, to participate in a 12-week, double-blind, randomized study – the most rigorous of clinical trial designs. After initial assessments, the patients received treatment with either clozapine or “high-dose” olanzapine (doses that exceed the package insert recommendations) and were monitored for improvement in their symptoms. The researchers discovered that clozapine was approximately twice as likely to produce a treatment response as olanzapine. Both positive symptoms (psychosis) and negative symptoms (blunted emotional response, reduced motivation) responded better to clozapine. John H. Krystal, M.D., Editor of Biological Psychiatry and affiliated with both Yale University School of Medicine and the VA Connecticut Healthcare System, comments on the findings: “Olanzapine is among the most effective antipsychotic medications, so the distinctive effectiveness of clozapine in this study could be very important.”
Dr. Kumra discusses this patient population: “The majority of these youth had histories of multiple hospitalizations, extreme violence, suicidality and trauma prior to study enrollment. Without appropriate intervention it is likely that many would have ended up in long-term care institutions, psychiatric prison settings, and/or experienced early death from drug use, violence, or suicide.” So, this preliminary data is hopeful, indicating that proper and effective treatment may be available for these adolescents, although there are also concerns.
Both medications produced significant weight gain and associated metabolic abnormalities. Dr. Krystal also adds that “clozapine has important side effects that have discouraged its prescription to children.” Dr. Kumra agrees, stating that “although clozapine is often considered as a treatment of ‘last resort’ because of its associated risk of agranulocytosis [a severe reduction in the number of white blood cells in the body], the striking symptom reduction observed in this clinical trial make apparent that clozapine has truly revolutionized the care of youth with treatment-refractory schizophrenia.”
Dr. Krystal concludes: “The long-term risks of medications, such as clozapine and olanzapine, will need to be weighed against their potential benefits. Thus, additional research will be needed to follow-up on this exciting but very preliminary finding.”
Jayne Dawkins | alfa
Antarctic Ice Sheet mass loss has increased
14.06.2018 | Technische Universität Dresden
WAKE-UP provides new treatment option for stroke patients | International study led by UKE
17.05.2018 | Universitätsklinikum Hamburg-Eppendorf
In a recent publication in the renowned journal Optica, scientists of Leibniz-Institute of Photonic Technology (Leibniz IPHT) in Jena showed that they can accurately control the optical properties of liquid-core fiber lasers and therefore their spectral band width by temperature and pressure tuning.
Already last year, the researchers provided experimental proof of a new dynamic of hybrid solitons– temporally and spectrally stationary light waves resulting...
Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...
Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.
Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...
The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.
Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.
An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.
Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...
13.06.2018 | Event News
08.06.2018 | Event News
05.06.2018 | Event News
21.06.2018 | Earth Sciences
21.06.2018 | Life Sciences
21.06.2018 | Earth Sciences