Biostatistics & Clinical Trial Methodology · Copenhagen

Statistical design, analysis, and reporting for trials and registry research.

Frameshift is a biostatistics consultancy supporting biotech sponsors, CROs, and academic research groups. We deliver statistical analysis plans, clinical study reports, and publication-ready outputs, from protocol to manuscript.

Who we are

Statistics first.

We are methodologists. Study design, analysis plans, and interpretation follow from the statistics, not the other way around.

Ólafur B. Davíðsson

Ólafur B. Davíðsson

Co-Founder & Lead Biostatistician

Statistical epidemiologist with a PhD from the University of Copenhagen. He trained in statistical genetics at deCODE genetics and held research posts at Statens Serum Institut and the Danish Cancer Institute before co-founding Frameshift. He has led the statistical work on randomized clinical trials, nationwide Danish registry studies, and genetic epidemiology, including research published in NEJM Evidence, the British Journal of Cancer, and The Lancet Obstetrics, Gynaecology & Women's Health. At Frameshift he leads study design, analysis strategy, statistical programming, and reporting.

Ragnar P. Kristjánsson

Ragnar P. Kristjánsson

Co-Founder & Managing Director

Statistical geneticist with a PhD in immunology and infectious diseases from the University of Copenhagen. He spent nearly a decade at deCODE genetics working on large-scale human genetics, with further experience in cancer epidemiology at the Danish Cancer Institute, spanning gene discovery, population cohorts, and registry-based research. At Frameshift he leads the practice and works on study design, genetic and observational analyses, and turning complex biomedical questions into tractable statistical ones.

Mikkel Werling

Mikkel Werling

Computational Methods Lead

Machine learning and computational analysis for clinical and health research, built on a background in software engineering and data science. His published work spans machine-learning models for clinical risk prediction and the assembly of research-ready health-data infrastructure from real-world records. At Frameshift he leads computational and machine-learning work, bringing model development and validation to problems where standard statistical methods fall short.

How we help

Shaping the question and analysis

We work with teams that have data and broad objectives, and want to shape clear analytical paths. That often means clarifying what can credibly be supported and which analyses are worth pursuing.

Statistical planning and trial analysis

Clear, decision-ready SAPs, trial analyses, and reporting. Estimands, endpoints, analysis populations, and strategy are defined at the planning stage—not renegotiated mid-analysis.

Registry and real-world evidence

Design and execution of observational studies using health registers and other real-world data. Credible results rely on attention to bias, timing, and comparability.

Track record

Selected work.

Peer-reviewed research from our team, and client engagements where we led the statistics.

See all →
npj Aging2026

Disentangling shifting demographic and treatment effects on years of life lost to cancer in Denmark

Nationwide decomposition separating demographic change from treatment progress in years of life lost to cancer across Denmark.

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Nature Genetics2019

A loss-of-function variant in ALOX15 protects against nasal polyps and chronic rhinosinusitis

Genome-wide analysis identifying a protective ALOX15 loss-of-function variant, implicating the pathway in nasal polyps and chronic rhinosinusitis.

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The Lancet Obstetrics, Gynaecology, & Women's Health2026

Epidemiological and genetic evidence for shared mechanisms between migraine and pre-eclampsia

Nationwide Danish cohort and genetic risk score study finding shared aetiological pathways between migraine and pre-eclampsia, with implications for cardiovascular risk stratification.

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HemaSphere2026

Machine learning enhances risk stratification and treatment failure prediction in diffuse large B-cell lymphoma

Machine-learning models that sharpen risk stratification and predict treatment failure in diffuse large B-cell lymphoma from routine clinical data.

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Nature Communications2016

Common and rare variants associating with serum levels of creatine kinase and lactate dehydrogenase

Sequence-variant analysis identifying common and rare genetic determinants of serum creatine kinase and lactate dehydrogenase.

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+48 more studies →

What we deliver

Concrete outputs
for your research.

Deliverables for biotech teams and research groups, across the full analytical lifecycle.

01

Statistical Analysis Plans

Pre-specified SAPs for clinical trials and observational studies, including endpoint definitions, multiplicity strategies, and regulatory-ready documentation.

02

Clinical Trial Biostatistics

Primary, secondary, and exploratory analyses for Phase I–IV trials. Clinical study reports and tables, listings, figures (TLFs).

03

Registry & Population Studies

Study design, cohort definition, and analysis using Danish national registers and Nordic administrative data at population scale.

04

Real-World Evidence

Comparative effectiveness, treatment utilisation, and health outcomes studies using claims, registry, or EHR data.

05

Scientific Writing & Figures

Publication-quality figures, statistical methods sections, results interpretation, and manuscript support for peer-reviewed journals.

06

Embedded Methods Partner

Ongoing senior biostatistical support integrated into your team, from early-phase scoping through final deliverables.

Frameshift Insights

From the team.

Methodological essays on epidemiology, biostatistics, and study design.

See all posts →

Sun Exposure, Skin Cancer, and a Methodological Sunburn

A 2013 Danish register study found that skin cancer patients had half the all-cause mortality of the general population, an effect that survives even a lottery prize with no biological mechanism whatsoever. Here is why.

Get in touch

Let's talk about
your research.

We work best with teams that have a defined research question and need statistical methodology, analysis, or reporting support. Tell us about your project and we will typically respond within one business day.

1 15–20 min scoping call 2 Quick assessment 3 Proposal
info@frameshift.dk

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