clinical trials

临床试验
  • 文章类型: Letter
    背景:解决复杂的研究挑战需要创新思维和传统方法的替代方法。一个这样的例子是手臂和手的问题,或多发性硬化症(MS)的上肢功能,一种神经系统疾病,影响全球约290万人,在英国影响超过15万人。历史上,临床试验和研究集中在行动能力和步行能力。这就排除了大量轮椅使用者的病人,限制他们的生活质量,限制获得可能有用的药物。为了解决这个问题,ThinkHand运动于2016年启动,旨在提高人们对MS上肢功能重要性的认识,并开发替代测量方法,记录,并说明手部和手臂功能的变化。
    方法:该活动在科学会议和在线调查中利用创新策略吸引受MS影响的人,医疗保健专业人员,慈善机构,和研究人员讨论保持上肢功能的重要性。通过共同设计和跨学科合作,该运动开发了新工具,例如低成本纸板版的九孔钉测试,便于手功能的远程监控。此外,该运动共同创建了“Under&Over”康复工具,允许具有高级MS的个人参与远程康复计划。ThinkHand运动的影响是巨大的,帮助转移学术和行业支持的试验的重点,包括O\'HAND和ChariotMS试验,两者都以上肢功能为主要终点。该运动以患者为中心的方法强调了在研究中认识患者观点的重要性,并挑战了既定的假设和实践。它证明了跨学科合作的有效性,系统思维,并与利益相关者共同创造解决复杂问题。
    结论:ThinkHand活动为健康研究实践提供了宝贵的见解。通过让患者参与所有阶段,研究人员可以更深入地了解疾病对他们生活的影响,找出差距,重点研究他们的需求。实验和迭代可以带来创新的解决方案,对非常规方法的开放可以推动广泛的变化。ThinkHand活动体现了以患者为中心的方法的潜力,以解决复杂的研究挑战,并彻底改变了MS研究和管理领域。采用这种方法将有助于未来更具包容性和影响力的研究。
    解决复杂的研究挑战需要创造性思维和新的做事方式。一个这样的挑战是了解多发性硬化症(MS)中手臂和手功能的问题,在英国影响超过150,000的神经系统疾病。在过去,研究主要集中在步行能力上,忽略了许多使用轮椅的人。为了解决这个问题,我们在2016年创建了ThinkHand运动。其目标是提高人们对手和手臂功能对MS(pwMS)患者的重要性的认识,并找到更好的方法来测量这些功能的变化,以便它们可以成为临床试验的结果。这可以为无法行走的pwMS提供更好的治疗途径。这场运动使用了各种方法,包括调查,社交媒体帖子,展览和音乐涉及pwMS,医疗保健专业人员,慈善机构,和研究人员在讨论这些问题。一起工作,他们创建了支持pwMS的工具,特别是那些在疾病的晚期阶段(pwAMS),参与研究并测量他们的手和手臂功能。通过我们专注于患者观点的协作方法,这场运动挑战了旧思想和根深蒂固的实践。研究表明,在研究的各个阶段,涉及pwMS的不同专业领域之间的合作可以帮助解决复杂的问题。这项运动为我们提供了宝贵的健康研究经验。当研究人员倾听患者并尝试新事物时,他们可以更好地了解疾病如何影响人们的生活,并制定更好的解决方案。总之,我们展示了采用以患者为中心的方法如何应对复杂的研究挑战,并改善我们未来研究和管理MS和其他疾病的方式.
    BACKGROUND: Solving complex research challenges requires innovative thinking and alternative approaches to traditional methods. One such example is the problem of arm and hand, or upper limb function in multiple sclerosis (MS), a neurological condition affecting approximately 2.9 million people worldwide and more than 150,000 in the United Kingdom. Historically, clinical trials and research have focused on mobility and walking ability. This excludes a large number of patients who are wheelchair users, limiting their quality of life and restricting access to possibly helpful medications. To address this issue, the ThinkHand campaign was launched in 2016, aiming to raise awareness about the importance of upper limb function in MS and develop alternative ways to measure, record, and account for hand and arm function changes.
    METHODS: The campaign utilised innovative strategies at scientific conferences and online surveys to engage people affected by MS, healthcare professionals, charities, and researchers in discussing the importance of preserving upper limb function. Through co-design and interdisciplinary collaboration, the campaign developed new tools like the low-cost cardboard version of the Nine-Hole Peg Test, facilitating remote monitoring of hand function. Additionally, the campaign co-created the \"Under & Over\" rehabilitation tool, allowing individuals with advanced MS to participate in a remote rehabilitation program.The impact of the ThinkHand campaign has been significant, helping to shift the focus of both academic and industry-supported trials, including the O\'HAND and ChariotMS trials, both using upper limb function as their primary end point. The campaign\'s patient-centred approach highlighted the importance of recognising patients\' perspectives in research and challenged established assumptions and practices. It demonstrated the effectiveness of interdisciplinary collaboration, systems thinking, and co-creation with stakeholders in tackling complex problems.
    CONCLUSIONS: The ThinkHand campaign provides valuable insights for health research practices. By involving patients at all stages, researchers can gain a deeper understanding of the impact of disease on their lives, identify gaps and focus research on their needs. Experimentation and iteration can lead to innovative solutions, and openness to unconventional methods can drive widespread change. The ThinkHand campaign exemplifies the potential of patient-centred approaches to address complex research challenges and revolutionise the field of MS research and management. Embracing such approaches will contribute to more inclusive and impactful research in the future.
    Solving complex research challenges requires creative thinking and new ways of doing things. One such challenge is understanding the problems with arm and hand function in multiple sclerosis (MS), a neurological condition that affects more than 150,000 in the United Kingdom. In the past, research focused mainly on walking ability, leaving out many people who use wheelchairs.To tackle this issue, we created the ThinkHand campaign in 2016. Its goal was to raise awareness about the importance of hand and arm function for people with MS (pwMS) and find better ways to measure changes in these functions such that they can become outcomes in clinical trials. This could provide a pathway to better treatments for pwMS who cannot walk.The campaign used various methods, including surveys, social media posts, exhibitions and music to involve pwMS, healthcare professionals, charities, and researchers in discussions about the issues. Working together, they created tools to support pwMS, particularly those at an advanced stage of the disease (pwAMS), to take part in research and measure their hand and arm function. Through our collaborative approach focusing on patients’ perspectives, the campaign challenged old ideas and deeply embedded practices. It showed that collaboration between different areas of expertise involving pwMS at all stages of research can help solve complex problems. This campaign teaches us valuable lessons for health research. When researchers listen to patients and try new things, they can better understand how a disease affects people’s lives and develop better solutions.In conclusion, we show how embracing a patient-centred approach can address complex research challenges and improve how we study and manage MS and other conditions in the future.
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  • 文章类型: Journal Article
    冠状病毒病-2019大流行导致全球抑郁症和焦虑症的大幅增加,这增加了对精神卫生服务的需求。然而,目前,治疗精神障碍的临床干预措施不足以满足日益增长的需求.迫切需要进行符合精神障碍特征的科学和标准化的临床研究,以便在临床上提供更有效和更安全的治疗方法。我们的研究旨在揭示挑战,研究设计的复杂性,伦理问题,样本选择,精神障碍临床研究中的疗效评价。发现了诊断精神疾病对主观症状表现和评定量表的依赖,强调缺乏明确的生物标准,这阻碍了严格的研究标准的构建。我们强调了心理治疗与药物治疗一起进行疗效评估的可能性,提议由精神科医生组成的多学科方法,神经科学家,和统计学家。为了理解精神障碍的进展,我们推荐开发人工智能综合评估工具,使用精确的生物标志物,和纵向设计的加强。此外,我们主张开展国际合作,以实现样本多样性,提高研究结果的可靠性,目的是通过样本代表性提高精神障碍的临床研究质量,准确的病史收集,坚持道德原则。
    The coronavirus disease-2019 pandemic resulted in a major increase in depression and anxiety disorders worldwide, which increased the demand for mental health services. However, clinical interventions for treating mental disorders are currently insufficient to meet this growing demand. There is an urgent need to conduct scientific and standardized clinical research that are consistent with the features of mental disorders in order to deliver more effective and safer therapies in the clinic. Our study aimed to expose the challenges, complexities of study design, ethical issues, sample selection, and efficacy evaluation in clinical research for mental disorders. The reliance on subjective symptom presentation and rating scales for diagnosing mental diseases was discovered, emphasizing the lack of clear biological standards, which hampers the construction of rigorous research criteria. We underlined the possibility of psychotherapy in efficacy evaluation alongside medication treatment, proposing for a multidisciplinary approach comprising psychiatrists, neuroscientists, and statisticians. To comprehend mental disorders progression, we recommend the development of artificial intelligence integrated evaluation tools, the use of precise biomarkers, and the strengthening of longitudinal designs. In addition, we advocate for international collaboration to diversity samples and increase the dependability of findings, with the goal of improving clinical research quality in mental disorders through sample representativeness, accurate medical history gathering, and adherence to ethical principles.
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  • 文章类型: Case Reports
    用于临床试验的结构化文档的生成是大型语言模型(LLM)的有希望的应用。我们分享机会,见解,以及使用LLM自动化临床试验文档的竞争挑战带来的挑战。
    作为辉瑞(组织者)发起的挑战的一部分,几个团队(参与者)创建了一个试点项目,用于为临床研究报告(CSR)生成安全表摘要.我们的评估框架使用自动化指标和专家评审来评估人工智能生成的文档的质量。
    比较分析揭示了不同解决方案的性能差异,特别是在事实准确性和精益写作方面。大多数参与者采用了具有生成性预训练变压器(GPT)模型的即时工程。
    我们讨论需要改进的地方,包括更好地摄取表格,添加上下文和微调。
    挑战结果证明了法学硕士在CSR中自动化表格总结的潜力,同时也揭示了人类参与和持续研究以优化该技术的重要性。
    UNASSIGNED: The generation of structured documents for clinical trials is a promising application of large language models (LLMs). We share opportunities, insights, and challenges from a competitive challenge that used LLMs for automating clinical trial documentation.
    UNASSIGNED: As part of a challenge initiated by Pfizer (organizer), several teams (participant) created a pilot for generating summaries of safety tables for clinical study reports (CSRs). Our evaluation framework used automated metrics and expert reviews to assess the quality of AI-generated documents.
    UNASSIGNED: The comparative analysis revealed differences in performance across solutions, particularly in factual accuracy and lean writing. Most participants employed prompt engineering with generative pre-trained transformer (GPT) models.
    UNASSIGNED: We discuss areas for improvement, including better ingestion of tables, addition of context and fine-tuning.
    UNASSIGNED: The challenge results demonstrate the potential of LLMs in automating table summarization in CSRs while also revealing the importance of human involvement and continued research to optimize this technology.
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  • 文章类型: Journal Article
    医学伦理指南要求临床试验研究者和申办者告知前瞻性试验参与者与研究医疗产品相关的所有已知和潜在风险。并获得他们的自由知情同意。这些指南还要求临床研究的设计应尽量减少危害并最大化收益。
    研究默克公司在GardasilHPV疫苗许可前临床试验中使用含反应性铝的“安慰剂”的科学原理。
    我们检查了在丹麦进行的FUTUREIIGardasil疫苗试验的知情同意书和招募手册;我们采访了几位FUTUREII试验参与者及其治疗医生。我们还审查了与Gardasil疫苗批准过程相关的监管文件以及关于评估人类疫苗中使用的佐剂的指南。
    发现疫苗制造商默克公司向试验参与者做出了一些不准确的陈述,损害了他们的知情同意权。首先,尽管研究方案将安全性测试列为研究的主要目标之一,招聘手册强调FUTUREII不是一项安全研究,疫苗已经被证明是安全的。第二,试验的广告材料和知情同意书指出安慰剂是盐水或非活性物质,when,事实上,它含有默克公司专有的高反应性铝佐剂,该佐剂似乎没有经过适当的安全性评估。几个试验参与者经历了慢性致残症状,包括一些随机分配到佐剂“安慰剂”组。
    在我们看来,在Gardasil临床试验中使用反应性安慰剂没有任何可能的益处,不必要地将研究对象暴露在风险中,因此违反了医学伦理。在疫苗临床试验中常规使用铝佐剂作为“安慰剂”是不合适的,因为它阻碍了疫苗相关安全信号的发现。
    UNASSIGNED: Medical ethics guidelines require of clinical trial investigators and sponsors to inform prospective trial participants of all known and potential risks associated with investigational medical products, and to obtain their free informed consent. These guidelines also require that clinical research be so designed as to minimize harms and maximize benefits.
    UNASSIGNED: To examine Merck\'s scientific rationale for using a reactogenic aluminum-containing \"placebo\" in Gardasil HPV vaccine pre-licensure clinical trials.
    UNASSIGNED: We examined the informed consent form and the recruitment brochure for the FUTURE II Gardasil vaccine trial conducted in Denmark; and we interviewed several FUTURE II trial participants and their treating physicians. We also reviewed regulatory documentation related to Gardasil vaccine approval process and the guidelines on evaluation of adjuvants used in human vaccines.
    UNASSIGNED: It was found that the vaccine manufacturer Merck made several inaccurate statements to trial participants that compromised their right to informed consent. First, even though the study protocol listed safety testing as one of the study\'s primary objectives, the recruitment brochure emphasized that FUTURE II was not a safety study, and that the vaccine had already been proven safe. Second, the advertising material for the trial and the informed consent forms stated that the placebo was saline or an inactive substance, when, in fact, it contained Merck\'s proprietary highly reactogenic aluminum adjuvant which does not appear to have been properly evaluated for safety. Several trial participants experienced chronic disabling symptoms, including some randomized to the adjuvant \"placebo\" group.
    UNASSIGNED: In our view, the administration of a reactive placebo in Gardasil clinical trials was without any possible benefit, needlessly exposed study subjects to risks, and was therefore a violation of medical ethics. The routine use of aluminum adjuvants as \"placebos\" in vaccine clinical trials is inappropriate as it hinders the discovery of vaccine-related safety signals.
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  • 文章类型: Journal Article
    背景:准确估计临床试验的成本具有挑战性。目前没有参考类数据可以让研究人员了解与临床试验中数据库变更管理相关的潜在成本。
    方法:我们使用了基于案例的方法,总结了由谢菲尔德临床试验研究单位管理的11个临床试验数据库中的术后变化。我们回顾了每个试验的数据库规范,并总结了变化的数量,更改类型,变更类别,和变化的时机。我们汇集了经验,并就关键主题发表了意见。
    结果:11项试验的变化总数中位数为71(范围为40-155),每个研究周的变化总数中位数为0.48(范围为0.32-1.34)。最常见的变化类型是修改(中位数39,范围20-90),其次是加法(中位数32,范围18-55),然后删除(中位数7,范围1-12)。在我们的样本中,变化在试验的前半部分更常见,无论其整体持续时间如何。连续变化的试验似乎更有可能是外部飞行员或试验团队整体经验较少或在特定治疗领域内的试验。
    结论:研究人员应计划试验,期望临床试验数据库需要在试验期限内进行更改,特别是在早期阶段或经验不足的试验团队。需要更多的研究来了解临床试验单位和数据库类型之间的潜在差异。
    BACKGROUND: Accurately estimating the costs of clinical trials is challenging. There is currently no reference class data to allow researchers to understand the potential costs associated with database change management in clinical trials.
    METHODS: We used a case-based approach, summarising post-live changes in eleven clinical trial databases managed by Sheffield Clinical Trials Research Unit. We reviewed the database specifications for each trial and summarised the number of changes, change type, change category, and timing of changes. We pooled our experiences and made observations in relation to key themes.
    RESULTS: Median total number of changes across the eleven trials was 71 (range 40-155) and median number of changes per study week was 0.48 (range 0.32-1.34). The most common change type was modification (median 39, range 20-90), followed by additions (median 32, range 18-55), then deletions (median 7, range 1-12). In our sample, changes were more common in the first half of the trial\'s lifespan, regardless of its overall duration. Trials which saw continuous changes seemed more likely to be external pilots or trials in areas where the trial team was either less experienced overall or within the particular therapeutic area.
    CONCLUSIONS: Researchers should plan trials with the expectation that clinical trial databases will require changes within the life of the trial, particularly in the early stages or with a less experienced trial team. More research is required to understand potential differences between clinical trial units and database types.
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  • 文章类型: Editorial
    暂无摘要。
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  • 文章类型: Journal Article
    在超罕见癌症的新适应症中开发新药物或为现有药物提供证据是复杂的,并且具有很高的失败风险。这在超罕见肿瘤中变得更加困难,年发病率为每100万人口1例或更低。这里,我们说明了在超罕见肿瘤中产生足够证据的问题,使用肺泡软部分肉瘤(ASPS)-一种在欧盟每年约60人中新诊断的超罕见肉瘤-作为一个示例病例,尽管与药物类别可能相关,但在发展中显示出挑战。我们讨论了一些解决这些挑战的可能方法,特别是关注学术团体之间的建设性合作,患者和倡导者,药品制造商,和监管机构优化超罕见癌症的药物开发。这篇文章,由各种欧洲利益相关者撰写,提出了一种最终为超罕见癌症患者获得更好选择的方法。
    Developing new drugs or generating evidence for existing drugs in new indications for ultra-rare cancers is complex and carries a high-risk of failure. This gets even harder in ultra-rare tumours, which have an annual incidence of 1 per 1,000,000 population or less. Here, we illustrate the problem of adequate evidence generation in ultra-rare tumours, using Alveolar Soft-Part Sarcomas (ASPS) - an ultra-rare sarcoma newly diagnosed in approximately 60 persons a year in the European Union - as an exemplar case showing challenges in development despite being potentially relevant for classes of agents. We discuss some possible approaches for addressing such challenges, especially focussing on constructive collaboration between academic groups, patients and advocates, drug manufacturers, and regulators to optimise drug development in ultra-rare cancers. This article, written by various European stakeholders, proposes a way forward to ultimately get better options for patients with ultra-rare cancers.
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  • 文章类型: Journal Article
    There is no satisfactory explanation for the sex-related differences in the incidence of many diseases and this is also true of Alzheimer\'s disease (AD), where females have a higher lifetime risk of developing the disease and make up about two thirds of the AD patient population. The importance of understanding the cause(s) that account for this disproportionate distribution cannot be overestimated, and is likely to be a significant factor in the search for therapeutic strategies that will combat the disease and, furthermore, potentially point to a sex-targeted approach to treatment. This review considers the literature in the context of what is known about the impact of sex on processes targeted by drugs that are in clinical trial for AD, and existing knowledge on differing responses of males and females to these drugs. Current knowledge strongly supports the view that trials should make assessing sex-related difference in responses a priority with a focus on exploring the sex-stratified treatments.
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  • 文章类型: Journal Article
    背景:治疗的总体有利获益-风险状况并不意味着每个患者都将从治疗中获益。我们描述了一种量化个体患者获益-风险权衡的统计方法。
    方法:该方法需要包含主要疗效结果和主要安全性结果的大型RCT:例如,在心肌梗死后的17,779名患者中进行的TIMI-50安慰剂对照试验vorapaxar。多变量回归模型根据每个患者的情况预测缺血性事件(获益)和大出血事件(损害)的风险。因此,对每位患者的预测受益于vorapaxar(缺血事件减少)和预测风险(出血事件增加)进行了估计.根据与全因死亡率的联系,对缺血和出血事件的相对重要性进行了量化,尽管注意到这种权重的局限性。
    结果:总体结果证明了vorapaxar的明显益处和危害。收益和风险的个体间差异很大,有助于区分具有有利利益-风险权衡的患者和没有的患者。这些发现被应用于推荐vorapaxar在多达98.3%的患者中具有有利的死亡率加权获益-风险权衡,在77.2%的缺血性患者中,获益比出血风险大20%,如果每年减少>=0.5%的缺血风险也是必需的,则在低至45.5%的患者中。
    结论:虽然治疗获益与风险的总体RCT是有价值的,确定每个患者的估计绝对收益和风险的模型提供了关于患者特定收益-风险权衡的更有用的见解,更好地实现个性化的治疗决策。
    BACKGROUND: A treatment\'s overall favorable benefit-risk profile does not imply that every individual patient will benefit from the treatment.
    OBJECTIVE: To describe a statistical methodology for quantifying the benefit-risk trade-off in individual patients.
    METHODS: The method requires a large randomized controlled trial containing a primary efficacy outcome and a primary safety outcome, for instance, the Thrombin Receptor Antagonist in Secondary Prevention of Atherothrombotic Ischemic Events-Thrombolysis in Myocardial Infarction 50 placebo-controlled trial of vorapaxar in 17 779 patients following myocardial infarction. Multivariate regression models predict each individual patient\'s risk of ischemic events (benefit) and major bleeding events (harm) based on their profile. Hence, each patient\'s predicted benefit from vorapaxar (reduction in ischemic events) and predicted risk (increase in bleeding events) were estimated. The relative importance of ischemic and bleeding events based on links to all-cause mortality was quantified, although the limitations of such weightings are noted.
    RESULTS: Overall results demonstrated both clear benefit and harm from vorapaxar. Substantial interindividual variation in both benefit and risk facilitated distinguishing patients with a favorable benefit-risk trade-off from those who did not. Such findings were applied to recommend vorapaxar in as many as 98.3% of patients in which a favorable mortality-weighted benefit-risk trade-off was present, in 77.2% of patients with ischemic benefit 20% greater than bleeding risk, or in as few as 45.5% of patients if an annual decrease in ischemic risk of ≥0.5% was also required.
    CONCLUSIONS: While overall randomized controlled trials of treatment benefit vs risk are valuable, models determining each individual patient\'s estimated absolute benefit and risk provide more useful insight regarding patient-specific benefit-risk trade-offs to better enable personalized therapeutic decision-making.
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  • 文章类型: Journal Article
    伦理价值-对一些学者来说,在研究伦理学领域,为试验患者提供试验后访问(PTA)的必要性受到了极大的关注。虽然没有达成共识,很明显,在某些审判环境中,各种因素使PTA特别合适。我们概述了迷幻临床试验的非典型方面,这些试验支持在该领域的研究中引入PTA的情况。包括迷幻药的更广泛的法律地位,研究人员-治疗师/参与者关系的性质,以及整个治疗过程的延长时限。正如人们越来越理解的那样,迷幻药辅助心理治疗的功效与药物本身一样,主要受食外学因素和文化治疗容器的驱动。因此,我们还主张将注意力从审判后的获取转向涵盖审判后护理其他要素的更广泛概念。我们提供了一些可能适用于迷幻药临床试验的潜在试验后护理规定的概述。尽管世界医学协会的赫尔辛基宣言呼吁研究人员,赞助商,和政府为审判后的准入做出规定,在已经受到高资源需求和重大官僚负担限制的迷幻试验中,这种规定可能感到不切实际或遥不可及。我们展示了如何将审判后的规定视为研究过程的一个组成部分,和研究经费的适当目的地,将有助于发展合法化后迷幻药生态系统所需的基础设施。
    The ethical value-and to some scholars, necessity-of providing trial patients with post-trial access (PTA) to an investigational drug has been subject to significant attention in the field of research ethics. Although no consensus has emerged, it seems clear that, in some trial contexts, various factors make PTA particularly appropriate. We outline the atypical aspects of psychedelic clinical trials that support the case for introducing the provision of PTA within research in this field, including the broader legal status of psychedelics, the nature of the researcher-therapist/participant relationship, and the extended time-frame of the full therapeutic process. As is increasingly understood, the efficacy of psychedelic-assisted psychotherapy is driven as much by extrapharmacological elements and the cultural therapeutic container as by the drug itself. As such, we also advocate for a refocusing of attention from post-trial access to a broader concept encompassing other elements of post-trial care. We provide an overview of some of the potential post-trial care provisions that may be appropriate in psychedelic clinical trials. Although the World Medical Association\'s Declaration of Helsinki calls on researchers, sponsors, and governments to make provisions for post-trial access, such provision may feel impracticable or out-of-reach within psychedelic trials that are already constrained by a high resource demand and significant bureaucratic burden. We show how conceiving of post-trial provision as an integral site of the research process, and an appropriate destination for research funding, will serve to develop the infrastructure necessary for the post-legalisation psychedelic medicine ecosystem.
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