The Imperial College Cambridge Manchester (ICCAM) platform study: An experimental medicine platform for evaluating new drugs for relapse prevention in addiction. Part A: Study description

Louise Paterson, Remy Flechais, Anna Murphy, Laurence Reed, Sanja Abbott, Venkataramana Boyapati, Rebecca Elliott, David Erritzoe, Karen D. Ersche, Yetunde Faluyi, Luca Faravelli, Emilio Fernandez-Egea, Nicola J. Kalk, Shankar Kuchibatla, John McGonigle, Antonio Metastasio, Inge Mick, Liam J. Nestor, Csaba Orban, Filippo PassettiEugenii A. Rabiner, Dana Smith, John Suckling, Roger Tait, Eleanor Taylor, Adam D. Waldman, Trevor W. Robbins, J. F. William Deakin, David J. Nutt, Anne Lingford-Hughes

Research output: Contribution to journalArticle

15 Citations (Scopus)


Drug and alcohol dependence are global problems with substantial societal costs. There are few treatments for relapse prevention and therefore a pressing need for further study of brain mechanisms underpinning relapse circuitry. The Imperial College Cambridge Manchester (ICCAM) platform study is an experimental medicine approach to this problem: using functional magnetic resonance imaging (fMRI) techniques and selective pharmacological tools, it aims to explore the neuropharmacology of putative relapse pathways in cocaine, alcohol, opiate dependent, and healthy individuals to inform future drug development. Addiction studies typically involve small samples because of recruitment difficulties and attrition. We established the platform in three centres to assess the feasibility of a multisite approach to address these issues. Pharmacological modulation of reward, impulsivity and emotional reactivity were investigated in a monetary incentive delay task, an inhibitory control task, and an evocative images task, using selective antagonists for µ-opioid, dopamine D3 receptor (DRD3) and neurokinin 1 (NK1) receptors (naltrexone, GSK598809, vofopitant/aprepitant), in a placebo-controlled, randomised, crossover design. In two years, 609 scans were performed, with 155 individuals scanned at baseline. Attrition was low and the majority of individuals were sufficiently motivated to complete all five sessions (n=87). We describe herein the study design, main aims, recruitment numbers, sample characteristics, and explain the test hypotheses and anticipated study outputs.
Original languageEnglish
Pages (from-to)943-960
Number of pages18
JournalJournal of Psychopharmacology
Issue number9
Publication statusPublished - 2015
Externally publishedYes


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