Research

Research & publications

I work on how medical evidence is produced and brought together: clinical trials and the methodology of evidence synthesis.

I develop reproducible workflows for systematic reviews and meta-analyses, aiming to make the aggregation of existing literature more transparent, traceable and resilient to error. I care about sharing data and analysis code openly, and about keeping claims within what the data can support.

Focus areas

  • Clinical trials
  • Evidence synthesis
  • Meta-analysis methodology
  • Reproducible research
  • Metabolic medicine & body composition
  • Molecular oncology

Open-source projects

Data, code and automation infrastructure are open on GitHub.

glp1-lbm-dxa-meta-analysis

Data and R code for the meta-analysis of DXA-measured lean and fat mass with GLP-1 and dual GIP/GLP-1 receptor agonists (phase 3 RCTs; PROSPERO CRD420261323497).

  • meta-analysis
  • DXA
  • GLP-1
  • R

meta-analysis-automation-engine

Automation for scientific meta-analysis: PubMed API, NLP, PDF parsing, hallucination checks and reproducible-research infrastructure.

  • automation
  • NLP
  • reproducible research

Publications

For the most current list, see the ORCID and Google Scholar profiles.

  1. Preprint 2026

    DXA-Measured Body Composition Effects of GLP-1 and Dual GIP/GLP-1 Receptor Agonists in Adults with Obesity or Type 2 Diabetes: A Systematic Review and Meta-Analysis of Phase 3 Randomized Trials

    Birkan Alaycı, Öykü Zeynep Gerçek

    Research Square (preprint)

  2. Congress abstract 2026 Accepted

    Outcomes and Prognostic Factors of Allogeneic Hematopoietic Stem Cell Transplantation in Patients Aged ≥65 Years with Acute Myeloid Leukemia: A Single-Center Retrospective Analysis

    Gülkan Özkan, Deniz Gören, Nurcan Özçelik, Birkan Alaycı, Mutlu Arat

    11th Congress on Controversies in Stem Cell Transplantation and Cellular Therapies (COSTEM 2026), Berlin, Germany · 1–4 October 2026

  3. Congress abstract 2026 Accepted

    Allogeneic Hematopoietic Stem Cell Transplantation in Myelofibrosis: Risk Stratification Using MTSS and EBMT Score — A Single-Center Experience

    Gülkan Özkan, Birkan Alaycı, Nurcan Özçelik, Deniz Gören, Mutlu Arat

    11th Congress on Controversies in Stem Cell Transplantation and Cellular Therapies (COSTEM 2026), Berlin, Germany · 1–4 October 2026

  4. Congress abstract 2026 Accepted

    Outcomes of Second Allogeneic Hematopoietic Stem Cell Transplantation in Patients with Acute Leukemia: A Single-Center Retrospective Analysis

    Gülkan Özkan, Deniz Gören, Nurcan Özçelik, Birkan Alaycı, Mutlu Arat

    11th Congress on Controversies in Stem Cell Transplantation and Cellular Therapies (COSTEM 2026), Berlin, Germany · 1–4 October 2026

  5. Article 2025

    When Trimethoprim-Sulfamethoxazole Turns Pernicious: Type 4 Renal Tubular Acidosis in a Diabetic Patient With Sjögren’s Syndrome

    Öykü Zeynep Gerçek, Birkan Alaycı, Fatih Borlu

    Cureus · doi:10.7759/cureus.91588

  6. Article 2022

    Frequency of Metabolic Syndrome in Paget’s Disease of Bone

    Rumeysa Selvinaz Erol, Esra Çil Şen, Feyza Yener Öztürk, Birkan Alaycı, Yüksel Altuntaş

    Med Bull Sisli Etfal Hosp 2022;56(3):360–364 · doi:10.14744/SEMB.2021.78861

  7. Article 2014

    İnciraltı Yerleşkesinde Biyoistatistik ve Biyoinformatik Program Kullanım Sıklığı ve Farkındalığı

    Çalıbaşı G, Kaçar G, Doğan Y, Tarı M, Sarı B, Tonç S, Başaran B, Alizade N, Alaycı B, Engin OT, Canbeldek M, Alashqar A, Amırfalla A, Dağdeviren K, Akbarpour M, Uysal T, Çakıroğlu E, Baskın Y, Ellidokuz H

    Dokuz Eylül Üniversitesi Tıp Fakültesi Dergisi 2014;28(2):45–50