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People

People and collaborations

SANCA is coordinated from Karolinska Institutet and carried out with clinicians and researchers in Stockholm, Gothenburg and internationally. The team brings together infectious disease physicians, gynaecologists, endoscopists, pathologists, laboratory scientists, epidemiologists, statisticians, health economists and AI researchers, and most members work in clinical practice. Several members lead national work on cervical cancer prevention, which allows SANCA to build directly on Swedish experience of HPV-based cervical screening.

Principal investigator

Christina Carlander

Christina Carlander

MD, PhD, associate professor in infectious diseases at the Department of Medicine Huddinge, Karolinska Institutet, and senior consultant at Karolinska University Hospital.

More about Christina Carlander

She leads the research group Clinical HIV Epidemiology and Comorbidity at KI and is director of InfCareHIV, the Swedish national HIV quality register. Her research combines national register data with prospective studies to examine cancer and other comorbidities in people with HIV, with a particular focus on HPV-related cancer. She contributes to the Swedish national HIV treatment guidelines.

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Study sites and recruitment

Infectious Disease Department, Karolinska University Hospital, Stockholm

Douglas Carrick

Douglas Carrick

Research nurse and study coordinator

Ekram Abdelaziz

Research nurse and study coordinator

Department of Infectious Diseases, Södersjukhuset (South Hospital), Stockholm

Anna Mia Ekström

Anna Mia Ekström

MD, PhD, professor of global infectious disease epidemiology at the Department of Global Public Health, Karolinska Institutet, and senior consultant in infectious diseases at Södersjukhuset.

More about Anna Mia Ekström

She leads the Global and Sexual Health (GloSH) research group at KI. Her research focuses on HIV prevention and care among migrants, young people and other key populations, and includes doctoral work on HPV and anal lesions in people with HIV.

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Johanna Brännström

Johanna Brännström

MD, PhD, senior consultant in infectious diseases at Södersjukhuset and affiliated researcher at Karolinska Institutet.

More about Johanna Brännström

She is an expert on late HIV diagnosis and missed opportunities for testing, including when migrants acquire HIV in relation to arrival in Sweden. Her research covers HIV testing, barriers to care and health outcomes in women with HIV.

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Ida Ekengren

Research nurse at Södersjukhuset.

More about Ida Ekengren

Site coordinator.

Department of Infectious Diseases, Sahlgrenska University Hospital, Gothenburg

Magnus Gisslén

Magnus Gisslén

MD, PhD, professor of infectious diseases at Sahlgrenska Academy, University of Gothenburg, and senior consultant at Sahlgrenska University Hospital, where he has led HIV care for more than two decades.

More about Magnus Gisslén

His research focuses on HIV in the central nervous system, including blood and cerebrospinal fluid biomarkers of neuronal injury, and on COVID-19.

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Åsa Mellgren

Åsa Mellgren

MD, PhD, associate professor at the Institute of Biomedicine, University of Gothenburg, and senior consultant in infectious diseases at Sahlgrenska University Hospital.

More about Åsa Mellgren

She leads the research group Women and HIV at Sahlgrenska University, which studies pregnancy and breastfeeding, treatment outcomes in women using the national InfCareHIV register, bone health after menopause, and sexual health in women with HIV.

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Helena Gisslén

Helena Gisslén

Research nurse at the Department of Infectious Diseases, Sahlgrenska University Hospital.

More about Helena Gisslén

Site coordinator.

Department of Gynecology and Reproductive Medicine, Karolinska University Hospital, Stockholm

Hanna Milerad

Hanna Milerad

MD, PhD, senior consultant in obstetrics and gynaecology at Karolinska University Hospital Huddinge and medically responsible for the cervical screening programme at the Regional Cancer Centre Stockholm Gotland.

More about Hanna Milerad

She is a member of the national working group (NaCx) and the national expert group (NKCx) for cervical cancer prevention. Her doctoral thesis (Karolinska Institutet, 2024) evaluated prevention of cervical and vaginal cancer across the screening chain, from primary screening and colposcopy to treatment and follow-up.

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Farzaneh Hamzei

MD, gynaecologist at Karolinska University Hospital Huddinge.

Ersta Hospital, Stockholm

Jonas Nygren

Jonas Nygren

MD, PhD, associate professor (docent) at Karolinska Institutet and senior consultant in surgery at Ersta Hospital.

More about Jonas Nygren

His research has focused on colorectal surgery and perioperative care, and he is part of the international Enhanced Recovery After Surgery (ERAS) research collaboration. He has co-authored the Ersta studies of high-resolution flexible endoscopy of the anal canal.

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Peter Borch-Johnsen

Peter Borch-Johnsen

Therapeutic endoscopist at Ersta Hospital, working across the departments of medicine and surgery, and affiliated researcher at the Department of Medicine Huddinge, Karolinska Institutet.

More about Peter Borch-Johnsen

His doctoral research at Uppsala University focused on high-resolution flexible endoscopy for detecting, treating and screening for HPV-related anal precancer, including underwater detection and resection of anal lesions. His interests include optical diagnosis, image-enhanced endoscopy and endoscopic resection.

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Jenny Delin

MD, senior consultant in gastroenterology at Ersta Hospital.

Department of Obstetrics and Gynaecology, Sahlgrenska University Hospital, Gothenburg

Cecilia Kärrberg

Cecilia Kärrberg

MD, PhD, associate professor, gynaecologist at Sahlgrenska University Hospital and affiliated researcher at the Department of Obstetrics and Gynaecology, University of Gothenburg.

More about Cecilia Kärrberg

She leads the clinical process for cervical dysplasia and vulvar lesions at the hospital and is secretary of the working and reference group for cervical cancer prevention (C-ARG) of the Swedish Society of Obstetrics and Gynaecology. Her research covers cervical precancer and cancer in pregnancy, HPV and preterm delivery, and audits of cervical screening.

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HPV-based screening expertise

Miriam Elfström

Miriam Elfström

PhD, MPH, epidemiologist and head of the laboratory unit at the Center for Cervical Cancer Elimination, Karolinska University Hospital, and research coordinator at Karolinska Institutet.

More about Miriam Elfström

She has led the development of the Swedish national cervical screening guidelines and worked on the national strategy for faster elimination of cervical cancer, which gives her direct experience of translating evidence into organised screening. Her research covers risk-based screening and the introduction of extended HPV genotyping and self-sampling in organised screening. She chaired the International Cancer Screening Network 2024–2026.

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Camilla Lagheden

Camilla Lagheden

Senior biomedical scientist at the Center for Cervical Cancer Elimination and the International HPV Reference Center, Karolinska Institutet.

More about Camilla Lagheden

She has long experience of HPV detection and genotyping in cell and tissue samples, including nationwide HPV typing of cervical cancers in Sweden and laboratory work for HPV vaccination studies.

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Karin Sundström

Karin Sundström

MD, PhD, senior researcher and research group leader at the Center for Cervical Cancer Elimination, Department of Clinical Science, Intervention and Technology, Karolinska Institutet.

More about Karin Sundström

Her research uses Swedish registers and biobanks to study HPV and cervical cancer, with a focus on biomarkers for new screening tests. She works on DNA methylation tests for cervical, endometrial and ovarian cancer, including the WID-qCIN test, and has studied deep sequencing of HPV16 and cell-free HPV DNA in blood in cervical cancer.

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Jiangrong Wang

Jiangrong Wang

PhD, epidemiologist and senior research specialist at the Department of Clinical Science, Intervention and Technology, Karolinska Institutet.

More about Jiangrong Wang

Her research evaluates and improves cervical screening, including screening of older women and the clinical use of DNA methylation testing. She leads projects funded by the Swedish Cancer Society and the Swedish Research Council on introducing the WID-qCIN methylation test in Swedish screening.

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Henrik Edvardsson

MD, consultant in pathology and cytology at the Department of Pathology and Cancer Diagnostics, Karolinska University Hospital, and at Central Hospital Karlstad.

More about Henrik Edvardsson

He has held leading roles in Swedish clinical cytology, including in the Swedish Society for Clinical Cytology and the Equalis advisory group for cervical cancer prevention, and has contributed to the national guidelines for cervical cancer prevention.

Cancer epidemiology, statistics and health economics

Jiayao Lei

Jiayao Lei

MBBS, PhD, assistant professor in epidemiology at the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, and visiting senior lecturer at Queen Mary University of London.

More about Jiayao Lei

Her research evaluates HPV vaccination in Sweden, including its effect on invasive cervical cancer and on vulvar and vaginal lesions, sex-neutral vaccination, and risk prediction for cervical disease. She leads a population-based evaluation of HPV genotype and cycle threshold values for risk stratification in cervical screening.

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Mark Clements

Mark Clements

PhD, associate professor (docent) in biostatistics at the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet.

More about Mark Clements

He has worked as a biostatistician in Sweden, Australia, New Zealand and the United Kingdom. His research covers natural history and microsimulation models for cancer screening, cost-effectiveness analysis, and time-to-event and multi-state models. He has led cost-effectiveness studies of prostate cancer screening, works on natural history modelling for cervical screening, and develops open-source statistical software.

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Philippe Wagner

Philippe Wagner

PhD, statistician at the Centre for Clinical Research, Uppsala University and Region Västmanland, Västerås.

More about Philippe Wagner

He has broad experience of register-based studies and prediction models, has co-authored guidance on statistical methods and reporting for biomedical journals, and has worked with the research group on HIV register studies for many years.

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International collaboration

Gary Clifford

Gary Clifford

PhD, professor at the School of Public Health, Shanxi Medical University, China, and previously deputy head of the Early Detection, Prevention and Infections Branch at the International Agency for Research on Cancer (IARC/WHO) in Lyon.

More about Gary Clifford

His work forms much of the international evidence base on anal cancer, including meta-analyses of HPV types from infection to cancer by sex and HIV status, pooled analyses of anal HPV and precancer in women, and the anal cancer risk scale used in the IANS screening guidelines. He has also led work on the global burden of infection-related cancer and on a blood test for early detection of anal cancer.

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Doctoral students

Julia Reissinger

Julia Reissinger

PhD student in the research group Clinical HIV Epidemiology and Comorbidity at the Department of Medicine Huddinge, Karolinska Institutet.

More about Julia Reissinger

She holds a master's degree in public health sciences from Karolinska Institutet (2025), and her doctoral project is based on the SANCA study.

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Funding

The Swedish Research Council (2025–2028), grant number 2024-06554