5-Year Disease-Free Survival (DFS) Rates in Cancer
The 5-year disease-free survival (DFS) rate varies significantly by cancer type and stage, ranging from approximately 29% to 80% depending on the specific malignancy, stage at diagnosis, and treatment approach.
Anal Cancer
- 5-year DFS for anal carcinoma is approximately 56% for patients treated with preoperative chemoradiation followed by resection and postoperative chemotherapy with a doxorubicin-based regimen 1
- DFS is significantly impacted by tumor size, lymph node involvement, and gender, with male sex and positive lymph nodes being independent negative prognostic factors 1
- Patients with T1-T2 tumors with N2-3 disease have a better 5-year survival rate (72.7%) compared to those with T3-T4 tumors with nodal involvement (39.9%) 1
Gastric Cancer
- In the MAGIC and FNCLCC trials evaluating perioperative chemotherapy for gastric cancer, the 5-year DFS rates were:
- 34% for patients receiving perioperative chemotherapy versus 19% for surgery-only group (HR 0.65, P=0.003) 1
- DFS is significantly better in early gastric cancer stages, with T1/T2 node-negative cases exceeding 80% 5-year survival probability 1
Hodgkin Lymphoma
- 5-year failure-free survival (equivalent to DFS) for patients with locally extensive Hodgkin lymphoma is approximately 82% 1
- For patients with stage III-IV Hodgkin lymphoma, the 5-year failure-free survival rate is approximately 67% 1
- Treatment regimens like ABVD and Stanford V show comparable 5-year PFS rates of 74% and 71%, respectively 1
Ewing Sarcoma
- 5-year DFS for patients with Ewing sarcoma varies significantly based on disease stage and treatment approach:
- For patients with localized disease at diagnosis who received high-dose chemotherapy (HDT), 5-year progression-free survival (PFS) is approximately 49% 1
- For patients with metastatic disease at diagnosis who received HDT, 5-year PFS is approximately 34% 1
- For patients with localized disease at recurrence who received HDT, 5-year PFS drops to approximately 14% 1
Breast Cancer
- For metastatic breast cancer patients who undergo local treatment for solitary metastases followed by adjuvant systemic therapy, 5-year DFS ranges from 36% to 52% 1
- In patients with oligometastatic breast cancer treated with high-dose chemotherapy and autologous stem cell transplantation after curative local treatment, 5-year relapse-free survival was 52% overall and 59% in the subgroup with distant metastases only 1
Soft Tissue Sarcoma
- 5-year DFS for high-grade extremity soft tissue sarcoma treated with preoperative chemoradiation followed by surgery and postoperative chemotherapy is approximately 70%, compared to 42% for historical controls 1
- The RTOG 9514 study showed a 5-year DFS of 56% for patients with large (≥8 cm), high-grade soft tissue sarcoma treated with preoperative chemoradiation followed by resection and postoperative chemotherapy 1
Colon Cancer
- 5-year DFS has been validated as a surrogate endpoint for overall survival in adjuvant colon cancer trials 2, 3, 4, 5
- Recent data from a large cohort study of right-sided colon cancer showed a 5-year DFS rate of 57.6% following curative-intent resection 6
- The correlation between 3-year DFS and 5-year OS in colon cancer trials is strong (R² = 0.89), making DFS a reliable endpoint 5
Clinical Implications
- DFS is increasingly used as a primary endpoint in clinical trials as it provides earlier assessment of treatment efficacy compared to overall survival 2, 4, 5
- Factors that negatively impact DFS across multiple cancer types include:
Common Pitfalls in DFS Assessment
- Extended survival after recurrence can reduce the association between DFS and overall survival, requiring longer follow-up (6-7 years) to demonstrate overall survival improvements 3
- This effect is more pronounced in earlier stage disease (e.g., stage II vs. stage III colon cancer) 3
- DFS definitions may vary between studies, making direct comparisons challenging 4, 5
- The predictive value of DFS for overall survival may be affected by effective post-recurrence therapies that extend survival after disease recurrence 3