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brad-ekwu-ochigbo/README.md

Hi, I'm Brad Ekwu Ochigbo, RPh, PhD (Brandeis) 👋

RWE Scientist | Health Policy | Oncology HEOR | Pharmacoeconomics

I build real-world evidence studies and health economic models in oncology, with a focus on treatment patterns, survival outcomes, and healthcare disparities using SEER and claims data.


🔬 Active Research

Bladder Cancer RWE Portfolio

A three-paper evidence generation strategy in urothelial carcinoma, modeled on industry HEOR standards.

Paper Title Status Data
P1 Stage at diagnosis, treatment utilization, and survival in MIBC before and after ICI availability — a SEER analysis 🟡 In progress SEER public
P2 HCRU and economic burden in advanced bladder cancer by treatment line 🔵 Planned Claims
P3 Comparative effectiveness of EV+pembro vs. chemotherapy — target trial emulation 🔵 Planned Claims

📂 Repositories

Reproducible RWE pipeline for Paper 1 — cohort identification, trend analysis, survival analysis, competing risk (Fine-Gray), Cox regression, and logistic regression for no-treatment receipt. SEER public data, Python.

Methods: Interrupted time series · Kaplan-Meier · Fine-Gray competing risk · Multivariable Cox regression · Logistic regression · Joinpoint trend analysis

Cost-effectiveness analysis for cariprazine in schizophrenia. Markov model, PSA, ICER estimation.

Methods: Markov cohort model · Probabilistic sensitivity analysis · Cost-effectiveness plane · CEAC


🛠 Skills

LanguagesPython · R · SAS (familiar)
RWE MethodsSurvival analysis · Competing risks · ITS · Propensity scoring
HEOR MethodsCost-effectiveness · Budget impact · Markov models · PSA
Data SourcesSEER · CMS SynPUFs · TriNetX (prior experience)
Librarieslifelines · statsmodels · pandas · numpy · matplotlib

📊 Study Design Expertise

  • Retrospective cohort studies using cancer registry and claims data
  • Interrupted time series for policy/approval change impact analysis
  • Target trial emulation framework for causal RWE
  • Cost-effectiveness modeling using Markov state-transition models

🎯 Research Focus Areas

Oncology RWE · Urothelial Carcinoma · Immune Checkpoint Inhibitors · Health Disparities · Pharmacoeconomics · Treatment Patterns · HEOR


📫 Connect

LinkedIn


All code is reproducible and openly available. Data sources are publicly accessible (SEER) or synthetic (CMS SynPUFs). No patient-identifiable data is stored in any repository.

Pinned Loading

  1. bladder-cancer-rwe bladder-cancer-rwe Public

    Reproducible RWE pipeline — treatment patterns and survival in muscle-invasive bladder cancer before and after ICI availability. SEER population-based analysis, 2004–2021.

    Python

  2. cariprazine-cea cariprazine-cea Public

    economic analysis: Reproducible Markov cost-effectiveness model- cariprazine vs risperidone for schizophrenia with predominant negative symptoms | Submitted to Value in Health 2026 | under review

    R