HOW RESULTS ARE MEASURED
IN CLINICAL TRIALS
Endpoints are the language through which trial evidence gets communicated. Learning what each one measures -- and what it does not -- is what makes results interpretable rather than just impressive-sounding.
Key Clinical Trial Endpoints at a Glance
| Endpoint | What It Measures | What It Does Not Capture |
|---|---|---|
| Overall Response Rate (ORR) | Percentage of patients whose tumours shrank by >=30% (RECIST) | Duration of that response; whether shrinkage translated to longer survival |
| Progression-Free Survival (PFS) | How long patients went without cancer growing or new spread | Whether patients actually lived longer; affected by subsequent therapies |
| Overall Survival (OS) | How long patients actually lived | Most definitive endpoint; takes longest; confounded by effective subsequent treatment |
| Complete Response (CR) Rate | Complete disappearance of measurable disease | Duration of CR is critical alongside the rate itself |
| Duration of Response (DoR) | How long responses lasted in patients who responded | Proportion of patients who responded in the first place (context needed) |
| Pathological Complete Response (pCR) | No active cancer cells remaining in surgical specimen after neoadjuvant treatment | Correlates variably with long-term outcomes depending on cancer type |
| Patient-Reported Outcomes (PROs) | Quality of life, symptom burden, functional status | Increasingly included as co-primary endpoints; often underreported in trial summaries |
Frequently Asked Questions
How CancerFax Helps
CancerFax is a specialist cancer access and patient-navigation platform. We help patients and families understand their options, organise medical records, coordinate hospital communication, and support cross-border treatment planning where appropriate.
We help collect and organise reports, scans, pathology, biomarker results, and treatment history for structured case review.
We communicate with hospitals or trial teams to assess whether a case may be suitable for further screening.
We support appointment coordination, document submission, translation, and direct communication with international departments.
For international patients, we help with practical coordination — travel planning, hospital admission guidance, and local support.
If this option is not suitable, we help explore other relevant treatments, clinical trials, or advanced care pathways.
From inquiry through to follow-up, our coordinators provide a single point of contact for the family.
CancerFax does not guarantee treatment access, eligibility, or clinical outcome. Our role is to help patients access accurate information, structured review, and appropriate specialist pathways.
Questions About What Trial Results Mean for Your Specific Situation?
CancerFax helps patients interpret clinical trial data in the context of their specific cancer type, molecular profile, and treatment history.
This content is for informational purposes only and does not constitute medical advice. Always consult a qualified oncologist before making treatment decisions.