Our Science

At Rallybio, we intend to apply four pillars for transforming devastating disease. As we look to assess assets for development, we seek to license assets where we understand the biology, how the asset translates to the pathology, how the asset translates and addresses the clinical symptoms, and ultimately how the asset can translate into a drug that delivers transformative quality of life and/or patient survival.

Our small team of high-powered mentally agile team members will search for and evaluate assets using the following robust clinical and commercial filters that will allow us to identify and acquire a portfolio of high-quality small molecule and protein-based assets in the late discovery to early clinical stages of drug development.

Biological and Pathological Assessment

  • Clear biological or genetic rationale
  • Devastating disease with transformative potential
  • Antibody, protein, or small molecule

Pre-clinical and Clinical DVPMT Assessment

  • Tractable pre-clinical pathway
  • Potential for early POC path for rapid pivot to registration

Registration & Business Assessment

  • Epidemiology over 3 per million – ultra rare to orphan
  • Commercially viable
  • Possibility of Orphan exclusivity

Our Motivation

It is estimated that rare diseases affect an estimated 25 to 30 million Americans and the European Organization for Rare Diseases (EURORDIS) estimates that 6% to 8% of the population of the European Union is affected by one. A rare disease, also sometimes called an orphan disease, is generally considered to be a disease that affects fewer than 200,000 people in the United States at any given time. While EURORDIS estimates that there are as many as 5,000 to 7,000 distinct rare diseases exist, the National Human Genome Institute claims that there are more than 6,800 rare diseases.

Unfortunately, only about 400 rare diseases have therapies and about 80% have a genetic component according to Rare Genomics Institute. This unmet need has not been addressed for the vast majority of patients suffering from these rare diseases. While researchers have made considerable progress in recent years in figuring out ways to diagnose, treat and even prevent a variety of rare diseases, much more remains to be done because there are no treatments for the vast majority of rare diseases.

Large and mid-size research companies are moving out of or deprioritizing their efforts on ultra-rare and rare diseases for a variety of reasons, but primarily on the concern that patient access to and reimbursement for these medicines won’t be maintained. The cost to develop a medicine for a rare disease is often the same as a non-rare disease and the risks impacting the return on investment for the research efforts absent access and reimbursement are not insignificant.

These factors create an opportunity to discover and develop new therapies for small and mid-size companies that can create significant value due to their relative size. Leveraging the ability to support big pharma growth aspirations, yet do so with an infrastructure cost base that minimizes the risk to the return on investment.

The founders of Rallybio believe that our proven track record, extensive knowledge of bioinformatics, high-quality science capabilities, and most importantly our passion, will enable us to discover and develop drugs for patients suffering from these horrible rare and ultra-rare diseases.