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  • PUBLICATION ALERT! “Low-dose naltrexone for post-COVID fatigue syndrome: a study protocol for a double-blind, randomised trial in British Columbia” in British Medical Journal

    A new paper authored by the LDN Trial team has been published in the scientific journal British Medical Journal, entitled “Low-dose naltrexone for post-COVID fatigue syndrome: a study protocol for a double-blind, randomised trial in British Columbia” The paper outlines the protocol for the LDN Clinical Trial which will assess the efficacy of low dose […]

  • Congratulations to Dr. Luis Nacul & Team for receiving CIHR Project Grant 2024 Priority Announcement!

    We are thrilled to announce that Dr. Luis Nacul and Co-Investigators Dr. Kathleen Kerr, Dr. Hilary Robertson & Dr. Zaya Chuluunbaatar have been awarded the CIHR Project Grant PA: Pandemic Preparedness and Health Emergencies Research. This grant will support new study called “Epidemiology and impact of myalgic encephalomyelitis and chronic fatigue syndrome (ME/CFS) in Canada: […]

  • Congrats to CCDP Team on receiving ICanCME New Frontiers Grant!

    CCDP Post-Doctoral Research Fellow, Dr. Zaya Chuluunbaatar and Principal Investigator Dr. Luis Nacul were selected as recipients of the Interdisciplinary Canadian Collaborative Myalgic Encephalomyelitis (ICanCME) Research Network 2023/2024 New Frontiers ME Discovery Grant Program Award. This award will support the project “Phenotyping Questionnaires Validation Study for Myalgic Encephalomyelitis/Chronic Fatigue Syndrome” which will evaluate whether three patient-reported […]

The Complex Chronic Diseases Research Program, led by Dr. Luis Nacul is based at the BC Women’s Hospital. Our research focuses on understanding the determinants of health, potential etiological factors, health resource utilization, experiences and outcomes among individuals affected by complex chronic diseases.


What is a Complex Chronic Disease?

Complex chronic diseases like Myalgic Encephalomyelitis/Chronic Fatigue Syndrome and Fibromyalgia are illnesses that last a long time, require treatment and management and often do not get better on their own. These conditions affect many Canadians. Despite the fact that they are relatively common, the underlying causes and the disease mechanisms responsible for these chronic complex conditions are not fully understood. In addition, individuals affected by complex chronic diseases face unmet medical and social needs.


Research Highlights

Low Dose Naltrexone Trial


The study aims to determine if low-dose naltrexone (LDN) reduces fatigue, improves related symptoms, and reduces inflammatory markers in peripheral blood in cases with Post-COVID-19 Fatigue Syndrome (PCFS) from COVID-19 virus (i.e. confirmed SARS-CoV-2 case). The trial is being conducted by the Complex Chronic Diseases Research Program at BC Women’s Hospital in collaboration with the Post COVID-19 Interdisciplinary Clinical Care Network.

CCDP Data Registry


The CCDP Data Registry is a multi-year project that aims to better a) characterize the population presenting for management of complex chronic disease and b) assess the effectiveness of the CCDP in improving patients’ outcomes over time. The information obtained from this registry will hopefully lead to improved assessments and interventions for the tens of thousands of individuals in British Columbia and beyond with symptoms or a diagnosis of Fibromyalgia, Chronic Fatigue Syndrome and/or Chronic Lyme-Like Syndrome. 

The Contributions of Viral Infections to ME/CFS


This study is investigating the contributing role of exposure to specific viral pathogens to the development of ME through accessing the existing population cohort established through the BC Generations Project (BCGP) and the UK ME Biobank (UKMEB). Analyses of bio-samples from across the Atlantic will help the understanding of disease etiology and pathophysiology of ME,  opening possibilities for targeted approaches to disease prevention and treatment.

Complex Chronic Diseases Research Program
Women's Health Research Institute
4500 Oak Street
Vancouver, BC Canada V6H 3N1
Email CCDPresearch@cw.bc.ca
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