Farhad, Director

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Farhad has been an Evidence Scientist since 2004. Holding a PhD in Evidence Synthesis, he has worked at Nottingham University, King’s College London, University College London (UCL), and UCLH. He is an Honorary Assistant Professor and Lecturer at UCL and Nottingham University,  and a Post-Doc Research Associate at Cambridge University. As a methodologist, he has co-authored the searching and screening chapter in the Cochrane Handbook.

He has been invited to deliver lectures on systematic reviews and recently held the most viewed webinar on Elsevier’s channel (Watch here). He was an invited speaker in Search Solutions 2018 and 2022 and has delivered tutorials for the British Computer Society (the Chartered Institute for IT) since (+, +, +). Furthermore, he was recognised at the University of Nottingham (2019) and King’s College London (2021) for exceptional performance in research and teaching. His most recent free webinar attracted hundreds of participants from 38 countries. Watch the recording for free: Computer Programs for Semi-Automation of Evidence Synthesis. He received BCS Foundation Certificate in Artificial Intelligence in August 2022.


Farhad has worked with 19 Cochrane Groups and contributed to over 450 Cochrane systematic reviews. In his spare time, he curates Systematic Review and Academic Writing topics on ResearchGate. He has added over 329 answers to the questions asked by the researchers about these topics since 2008, ResearchGate’s birth year.

Furthermore, he is an editor of the Systematic Reviews journal and has peer-reviewed grant applications for NIHR, MRC and Leverhulme Trust and over 80 manuscripts for over 23 journals, including BMJ.


He joined Evidence Aid to fight against COVID-19. Farhad published the first and the most sensitive search filter for COVID-19 literature in BMJ, and immediately after that, he developed the first Living Search Strategy to retrieve all the literature relevant to COVID-19 and SARS-CoV-2 in PubMed (report in Journal of Clinical Epidemiology). He is one of 320 scientists who wrote to the Prime Minister that the lack of vaccines in poorer countries is going to harm all countries through new variants and a temporary waiver of intellectual property rules is the solution (BBC).

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Petra, Senior Health Technology Assessor

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Petra is a multidisciplinary scientist with more than 20 years of experience in delivering high-quality systematic literature reviews, Health Technology Assessments (HTA), and health outcomes and preclinical laboratory research across multiple disease areas and international markets. She authored and content-edited over 200 systematic reviews and HTAs for the Hayes Inc Knowledge Center, the leading provider of HTAs for payers in the United States. She contributed to projects for the Swiss Federal Office of Public Health and the Patient-Centred Outcomes Research Institute in the United States. Her most recent roles involved providing strategic leadership in evidence development, managing a research team of over 25 scientists and overseeing the timely delivery and scientific integrity of 140 HTAs per year.

She completed postdoctoral training in gene therapy and molecular medicine at the US Food and Drug Administration and the Johns Hopkins School of Medicine. Her continuing education includes certificates in Public Policy and Management at the University of York (United Kingdom), Intercultural Training and Consulting at the Heidelberg University of Education (Germany), and Modelling Cost-Effectiveness in Healthcare at the London School of Economics and Political Science (United Kingdom) (this course ends in April 2022).

Petra is passionate about using evidence to solve global problems. In addition to healthcare, she is also interested in projects related to biodiversity and re-greening.


Petra is a member of Cochrane. She participates in Cochrane reviews and also volunteers through the Cochrane Crowd platform.

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Fang, Biostatistician

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Fang is an anesthesiologist by training and holds a PhD degree in Anaesthesia and Intensive Care. She has over 10 years of experience in diverse qualitative and quantitative evidence synthesis research and statistical analysis roles to evaluate patient outcomes and the effectiveness of treatments and interventions. She has proven success in rapid review, (Cochrane) systematic review, meta-analysis, and randomized/non-randomized clinical trials with a strong personal commitment to meet expectations. She is also a proficient Stata and SAS programmer and experienced in R, SPSS, RevMan, Tableau, Covidence, EPPI-Reviewer, GRADEpro GDT, PROSPERO registry and so on.

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Katairo, Epidemiologist/Biostatistician

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Katairo is an epidemiologist and biostatistician by profession. He holds a first degree in biomedical laboratory technology, a master’s degree in clinical epidemiology and biostatistics and a certificate in implementation science from the University of California, San Francisco (UCSF). In the field of evidence synthesis, Katairo works as a 1) research fellow with the Africa Centre of Systematic Reviews and Knowledge Translation, in Makerere University, Uganda 2) consultant with the International Initiative for Impact Evaluation (3ie) 3) consultant with the Campbell Collaboration 4) freelance consultant with the Systematic review Consultants.
Katairo has experience in conducting both quantitative and qualitative systematic reviews, meta-analyses, Risk of Bias (RoB) analysis and producing Evidence and Gap Maps (EGMs). He has experience using STATA, Eppi-Reviewer (both basic and web-version), Eppi-Mapper, RevMan, GradePro, EndNote, Zotero, among other software programs.

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Fabrizio, Senior Research Analyst

Fabrizio D’Ascenzo is an Interventional Cardiologist working in the University of Turin. He works as a researcher, mainly focusing on Acute Coronary Syndromes, Heart Failure and structural heart disease. He has 10 years of experience conducting systematic reviews, and pairwise and network meta-analysis published in high-ranking journals (from Lancet to European Heart Journal). He provides numerous courses for writing and reviewing a systematic review.

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Ambrish, Epidemiologist/Health Economist

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Ambrish is a registered pharmacist with a bachelor’s degree in pharmacy and a master’s degree in Biotechnology. He is a professional with strong health outcome research skills and a result-driven attitude. With more than nine years of industry/academic experience in primary and secondary evidence synthesis, he has helped leading consulting organizations, global medical device companies, and pharmaceutical companies generate compelling evidence to support health technology value prepositions.

He is currently pursuing his PhD in Epidemiology and Health Economics at the Menzies Institute for Medical Research. He has experience undertaking systematic reviews, meta-analysis, health economics and outcome research, and real-world evidence studies.

As a member of the research team, he has worked for several key national and international organizations such as WHO, Cochrane, International Decision Support Initiative, Joanna Briggs Institute, and the World Federation of Haemophilia from the UK, Canada, and Australia. See the recent guidelines he has worked on for WHO and WFH

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Marwah, Medical Writer

Marwah is a dentist with a master’s degree in Prosthodontics and working towards obtaining a master’s degree in Systematic Reviews from the University of Oxford. She is a competent systematic reviewer with seven years of experience in quantitative evidence synthesis, meta-analysis, and randomised controlled trials. She first joined Cochrane in 2014 and has since led methodologically several Cochrane and non-Cochrane systematic reviews of interventions.

She has provided training in numerous Cochrane Standard Author Training workshops and is currently volunteering as an author and referee in four Cochrane review groups. Furthermore, she has provided training on how to write and publish research and draft your paper following the recommendations of the EQUATOR network. She is passionate about evidence synthesis and strongly believes in the substantial impact high-quality evidence has on people’s lives.

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Tina, Medical Writer

Tina is a multidisciplinary researcher with a track record of delivering high-quality outcomes for organisations and stakeholders across academic, clinical, governmental and not-for-profit institutions. Her most recent roles have involved managing the research activities of the National Eating Disorders Collaboration and working as a Research Consultant in the mental health space. Her work experience is underpinned by strong academic qualifications, including a PhD in biology and cognition. She is passionate about contributing to positive change through the implementation of evidence-based practices and policies, particularly within the public health and mental health space.

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Vanesa, Research Analyst

Vanesa is a registered Pharmacist specialised in research. Her work includes Health Technology Assessments (HTAs) for the UK National Institute of Health and Care Excellence (NICE). She also carries out research on evidence-based interventions for the pharmaceutical industry and healthcare providers. She has a Master’s in Public Health from the University of York and postgraduate education in Health Economics. She is a member of Consilium Scientific, a leading not-for-profit organisation that advocates for research transparency. Highly committed and driven.

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