scholarly journals Unmet Medical Needs in Pulmonary Neuroendocrine (Carcinoid) Neoplasms

2018 ◽  
Vol 108 (1) ◽  
pp. 7-17 ◽  
Author(s):  
Eric Baudin ◽  
Aimee R. Hayes ◽  
Jean-Yves Scoazec ◽  
Pier Luigi Filosso ◽  
Eric Lim ◽  
...  

Pulmonary carcinoids (PCs) display the common features of all well-differentiated neuroendocrine neoplasms (NEN) and are classified as low- and intermediate-grade malignant tumours (i.e., typical and atypical carcinoid, respectively). There is a paucity of randomised studies dedicated to advanced PCs and management principles are drawn from the larger gastroenteropancreatic NEN experience. There is growing evidence that NEN anatomic subgroups have different biology and different responses to treatment and, therefore, should be investigated as separate entities in clinical trials. In this review, we discuss the existing evidence and limitations of tumour classification, diagnostics and staging, prognostication, and treatment in the setting of PC, with focus on unmet medical needs and directions for the future.

2021 ◽  
Vol 23 (6) ◽  
Author(s):  
Konstantin Bräutigam ◽  
Antonio Rodriguez-Calero ◽  
Corina Kim-Fuchs ◽  
Attila Kollár ◽  
Roman Trepp ◽  
...  

Abstract Purpose of Review Classification and nomenclature of neuroendocrine neoplasms (NEN) have frequently changed over the last years. These changes reflect both increasing knowledge and international standardisation. Recent Findings The most recent changes in the Gastro-Entero-Pancreatic system induced the concept of well-differentiated NET with high proliferation rate (NET G3), explaining partially the heterogeneity of G3 NEN. Even if the nomenclature in pulmonary NEN is still different, the terms ‘carcinoid’ and ‘atypical carcinoid’ are widely overlapping with NET G1 and NET G2. Molecular data shows an additional heterogeneity both in well-differentiated NET and poorly differentiated NEC. However, no studies are available demonstrating clinical usefulness yet. Summary The heterogeneity of NEN regarding the organ of origin, differentiation and molecular subtypes make development of personalised therapy a challenge needing more international and interdisciplinary collaborations and clinical trials allowing stratification according to biological subgroups.


2018 ◽  
Vol 108 (1) ◽  
pp. 18-25 ◽  
Author(s):  
Jaume Capdevila ◽  
Lisa Bodei ◽  
Philippa Davies ◽  
Vera Gorbounova ◽  
Robert T. Jensen ◽  
...  

Unmet medical needs are not infrequent in oncology, and these needs are usually of higher magnitude in rare cancers. The field of neuroendocrine neoplasms (NENs) has evolved rapidly during the last decade, and, currently, a new WHO classification is being implemented and several treatment options are available in the metastatic setting after the results of prospective phase III clinical trials. However, several questions are still unanswered, and decisions in our daily clinical practice should be made with limited evidence. In the 2016 meeting of the advisory board of the European Neuroendocrine Tumor Society (ENETS), the main unmet medical needs in the metastatic NENs setting were deeply discussed, and several proposals to try to solve them are presented in this article, including biomarkers, imaging, and therapy.


Author(s):  
Hussain A. Safar ◽  
Abu Salim Mustafa ◽  
Timothy D. McHugh

AbstractAt the time of writing, the SARS-CoV-2 virus has infected more than 49 million people causing more than 1.2 million deaths worldwide since its emergence from Wuhan, China in December 2019. Vaccine development against SARS-CoV-2 has drawn the global attention in order to stop the spread of the virus, with more than 10 vaccines being tested in phase III clinical trials, as of November 2020. However, critical to vaccine development is consideration of the immunological response elicited as well as biological features of the vaccine and both need to be evaluated thoroughly. Tuberculosis is also a major infectious respiratory disease of worldwide prevalence and the vaccine development for tuberculosis has been ongoing for decades. In this review, we highlight some of the common features, challenges and complications in tuberculosis vaccine development, which may also be relevant for, and inform, COVID-19 vaccine development.


2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Eline M. Bunnik ◽  
Nikkie Aarts

Abstract Background Patients with unmet medical needs sometimes resort to non-standard treatment options, including the use of unapproved, investigational drugs in the context of clinical trials, compassionate use or named-patient programs. The views and experiences of patients with unmet medical needs regarding unapproved, investigational drugs have not yet been examined empirically. Methods In this qualitative study, exploratory interviews and focus groups were held with patients with chronic or life-threatening diseases (n = 39), about topics related to non-standard treatment options, such as the search for non-standard treatment options, patients’ views of the moral obligations of doctors, and the conditions under which they would or would not wish to use non-standard treatment options, including expanded access to unapproved, investigational drugs. Results Respondents had very little knowledge about and/or experience with existing opportunities for expanded access to investigational drugs, although some respondents were actively looking for non-standard treatment options. They had high expectations of their treating physicians, assuming them to be aware of non-standard treatment options, including clinical trials elsewhere and expanded access programs, and assuming that they would inform their patients about such options. Respondents carefully weighed the risks and potential benefits of pursuing expanded access, citing concerns related to the scientific evidence of the safety and efficacy of the drug, side effects, drug-drug interactions, and the maintaining of good quality of life. Respondents stressed the importance of education and assertiveness to obtain access to good-quality health care, and were willing to pay out of pocket for investigational drugs. Patients expressed concerns about equal access to new and/or non-standard treatment options. Conclusion When the end of a standard treatment trajectory comes into view, patients may prefer that treating physicians discuss non-standard treatment options with them, including opportunities for expanded access to unapproved, investigational drugs. Although our respondents had varying levels of understanding of expanded access programs, they seemed capable of making well-considered choices with regard to non-standard treatment options and had realistic expectations with regard to the safety and efficacy of such options. Dutch patients might be less likely to fall prey to false hope than often presumed.


2015 ◽  
Vol 43 (05) ◽  
pp. 893-913 ◽  
Author(s):  
Wei Ling ◽  
Yi Huang ◽  
Jia-Hua Xu ◽  
Yang Li ◽  
Yan-Mei Huang ◽  
...  

Gastroesophageal reflux disease (GERD) and bile reflux gastritis (BRG) are common gastrointestinal (GI) disorders with unmet medical needs. Traditional Chinese medicine has long been used for the treatment of GERD and BRG whereas the ginger-containing formula Wendan decoction (WDD) targets homeostatic disturbances characterized by "reflux" and "gut-juice exposure" problems. Here we used WDD as a therapeutic tool to unravel the common pathogenesis of GI reflux disorders. Control clinical trials reporting the WDD-treated patients with GERD and BRG were included in this systematic review and meta-analysis. Outcome measurements were clinical efficacy defined by symptom relief with normal GI endoscopy, radiology, and pathology. Eventually, 33 studies involved 3253 participants (1351 vs. 1035 of the BRG in 20 publications, 449 vs. 418 of the GERD in 13 studies, and 194 vs. 159 of relapse rate in 6 trials). Pooled data showed a consistent therapeutic efficacy of WDD on BRG (OR = 6.00, 95%C = 4.68–7.69) and GERD (OR = 4.39, 95%CI = 2.72–7.07). The relapse rate was 12.4% for WDD, significantly lower than 44.0% for conventional therapies (OR = 0.14, 95%CI = 0.08–0.26). The consistent therapeutic efficacy of the single TCM formula on GERD and BRD indirectly indicates reflux as a common pathogenesis in reflux-associated GI disorders.


Author(s):  
Liu Daisy Liu ◽  
Chaoyang Lian ◽  
Leng-Siew Yeap ◽  
Fei-Long Meng

Abstract Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a worldwide severe coronavirus disease 2019 (COVID-19) pandemic since December 2019. There is a great demand for effective therapies for the prevention and treatment of COVID-19. Developing therapeutic neutralizing antibodies (NAbs), which could block viral infection, issuch a promising approach, as NAbs have been successfully applied to the treatment of other viral infections. The recent advances of antibody technology have greatly accelerated the discovery of SARS-CoV-2 NAbs, and many of which are now actively tested in clinical trials. Here, we review the approaches applied for SARS-CoV-2 NAb development, and discuss the emerging technologies underlining the antibody discovery. We further summarize the common features of these antibodies including the shared neutralizing epitopes and sequence features.


Author(s):  
Graeme D. Ruxton ◽  
William L. Allen ◽  
Thomas N. Sherratt ◽  
Michael P. Speed

Aposematism is the pairing of two kinds of defensive phenotype: an often repellent secondary defence that typically renders prey unprofitable to predators if they attack them and some evolved signal that indicates the presence of that defence. Aposematic signals often work to modify the behaviours of predators both before and during attacks. Warning coloration, for example, may increase wariness and hence improve the chances that a chemically defended prey is released unharmed after an attack. An aposematic signal may therefore first tend to reduce the probability that a predator commences attack (a primary defence) and then (as a component of secondary defence) reduce the probability that the prey is injured or killed during any subsequent attack. In this chapter we will consider both the primary and the secondary effects of aposematic signals on prey protection. We begin first by describing the common features of aposematic signals and attempting to show the wide use to which aposematic signalling is deployed across animals (and perhaps plants too). We then review the interesting evolutionary issues aposematic signals raise, including their initial evolution and their integration with sexual and other signals. We also discuss important ecological, co-evolutionary, and macroevolutionary consequences of aposematism.


2021 ◽  
Vol 5 (1) ◽  
pp. 43-51
Author(s):  
Jeong-A Jo

This study aims to examine the common features and differences in how the Chinese-character classifier ‘ ben 本’ is used in Chinese, Korean, and Japanese, and will explore the factors that have affected the categorization processes and patterns of the classifier ‘ ben 本.’ Consideration of the differences in the patterns of usage and categorization of the same Chinese classifier in different languages enables us to look into the perception of the world and the socio cultural differences inherent in each language, the differences in the perception of Chinese characters, and the relationship between classifiers.


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