Despite significant advancements, cancer R&D faces several challenges:
Tumor Heterogeneity: Cancers can vary widely even within the same type, making it difficult to develop one-size-fits-all treatments. Drug Resistance: Cancer cells can develop resistance to therapies, necessitating the continuous development of new treatments. Side Effects: Many cancer treatments can cause severe side effects, impacting patients' quality of life. Funding: Sustained financial support is crucial for ongoing R&D efforts. Regulatory Hurdles: Ensuring that new treatments are safe and effective often involves lengthy and complex regulatory processes.