Key Takeaways
- In 2023, approximately 612,390 new cases of metastatic cancer were diagnosed in the US across all primary sites, accounting for 18% of all cancer diagnoses
- Globally, metastatic breast cancer affects over 1.2 million women annually, with 70% presenting as stage IV at diagnosis in low-income countries
- The prevalence of metastatic lung cancer in the US reached 140,000 patients living with the disease in 2022, up 25% from 2010
- The 5-year relative survival rate for metastatic breast cancer (stage IV) is 31% in the US (2014-2020 data)
- For distant metastatic lung cancer, median survival is 8.4 months, with 7% 5-year survival (SEER 2017-2021)
- Metastatic colorectal cancer 5-year survival: 15%, improved from 10% in 2000 (US data)
- In 2022, metastatic cancer caused 168,000 deaths in the US, 29% of all cancer mortality
- Globally, metastatic cancers account for 90% of the 10 million cancer deaths yearly (2020)
- Metastatic lung cancer mortality: 125,000 US deaths/year, 80% of lung cancer deaths
- Checkpoint inhibitors achieve 20% ORR in metastatic melanoma, with 50% 5-year OS in responders
- In metastatic NSCLC, pembrolizumab monotherapy yields 45% ORR for PD-L1 high, mPFS 10.3 months
- Regorafenib in metastatic CRC post 2nd line: 1.9% OS benefit, mOS 6.4 vs 5.0 months
- 80% of metastatic cancers linked to smoking, alcohol, obesity, infection, or environmental factors
- BRCA1/2 mutations increase metastatic breast cancer risk 72%, lifetime risk 55-72%
- Smoking causes 85% of metastatic lung cancers, RR 15-30 for heavy smokers
Metastatic cancer is alarmingly common but survival rates remain low.
Incidence & Prevalence
- In 2023, approximately 612,390 new cases of metastatic cancer were diagnosed in the US across all primary sites, accounting for 18% of all cancer diagnoses
- Globally, metastatic breast cancer affects over 1.2 million women annually, with 70% presenting as stage IV at diagnosis in low-income countries
- The prevalence of metastatic lung cancer in the US reached 140,000 patients living with the disease in 2022, up 25% from 2010
- In Europe, metastatic colorectal cancer incidence stands at 185,000 cases per year, with a 5-year prevalence of 450,000 patients
- Metastatic prostate cancer comprises 30% of all prostate cancer cases at diagnosis, affecting 48,000 US men yearly
- Among pancreatic cancers, 53% are metastatic at initial diagnosis, totaling 28,000 cases in the US in 2023
- Metastatic melanoma incidence in Australia is 15.7 per 100,000, with 2,500 stage IV cases annually
- In 2022, 90% of ovarian cancers are diagnosed as metastatic (stage III/IV), equating to 19,800 US cases
- Metastatic kidney cancer prevalence in the EU is 120,000 patients, with 85,000 new metastatic cases yearly
- US bladder cancer metastatic cases number 17,000 annually, representing 5% of diagnoses but 50% of deaths
- Globally, 70% of liver cancers are metastatic at diagnosis, with 410,000 stage IV cases in 2020
- Metastatic non-Hodgkin lymphoma affects 25,000 new US patients yearly, 40% of all NHL cases
- In 2023, metastatic gastric cancer incidence in Asia was 450,000 cases, 80% of global total
- US metastatic thyroid cancer cases: 12,000 yearly, rising 3% annually since 2010
- Metastatic esophageal cancer comprises 60% of diagnoses, 18,000 US cases in 2023
- Brain metastases from lung cancer occur in 40% of cases, affecting 50,000 US patients annually
- Metastatic uterine cancer incidence: 12,500 US cases yearly, 20% stage IV
- Globally, metastatic cervical cancer: 250,000 cases/year, 90% in developing countries
- US metastatic multiple myeloma prevalence: 85,000 patients in 2022
- Metastatic head and neck cancer: 15% of cases, 13,000 US annually
- In 2023, metastatic sarcoma incidence worldwide: 35,000 cases
- US metastatic germ cell tumors: 2,500 cases/year, mostly testicular origin
- Metastatic adrenocortical carcinoma: rare, 200 US cases/year, 70% stage IV
- Global metastatic mesothelioma: 30,000 cases/year, linked to asbestos
- US metastatic neuroendocrine tumors prevalence: 100,000 patients
- Metastatic penile cancer: 500 US cases/year, 50% advanced
- In 2022, metastatic vulvar cancer: 1,200 US cases
- Metastatic anal cancer incidence: 8,000 US/year, rising 2%/year
- Global metastatic Kaposi sarcoma: 25,000 cases/year in HIV patients
- US metastatic chordoma prevalence: 1,000 patients
Incidence & Prevalence Interpretation
Mortality Statistics
- In 2022, metastatic cancer caused 168,000 deaths in the US, 29% of all cancer mortality
- Globally, metastatic cancers account for 90% of the 10 million cancer deaths yearly (2020)
- Metastatic lung cancer mortality: 125,000 US deaths/year, 80% of lung cancer deaths
- Colorectal metastatic disease causes 52% of CRC deaths, 27,000 US annually
- Pancreatic metastatic cancer mortality rate: 50,000 US/year, 83% of pancreatic deaths
- Breast cancer metastatic deaths: 42,000 US/year, despite early detection efforts
- Prostate metastatic mortality: 34,000 US/year, 50% of prostate deaths
- Liver metastatic cancer deaths: 29,000 US/year, 75% metastatic at death
- Ovarian metastatic mortality: 12,700 US/year, 70% stage III/IV
- Melanoma metastatic deaths: 7,650 US/year, down 20% since 2015
- Kidney metastatic cancer mortality: 14,000 US/year
- Bladder distant met mortality: 17,000 US/year, 50% of bladder deaths
- Esophageal metastatic deaths: 16,500 US/year, 85% metastatic
- Gastric metastatic mortality: 11,000 US/year, global 769,000
- Non-Hodgkin lymphoma met deaths: 20,000 US/year
- Thyroid distant met mortality: 1,100 US/year
- Endometrial met mortality: 13,000 US/year
- Cervical met deaths: 4,000 US/year
- Multiple myeloma deaths: 35,000 US/year, mostly advanced
- Head/neck met mortality: 10,000 US/year
- Soft tissue sarcoma met deaths: 5,000 US/year
- Testicular met mortality: 400 US/year
- Mesothelioma deaths: 3,000 US/year, nearly all metastatic
- Neuroendocrine met mortality: 8,000 US/year
- Anal cancer met deaths: 900 US/year
- Penile cancer met mortality: 300 US/year
- Vulvar met deaths: 1,100 US/year
- Kaposi sarcoma deaths: 500 US/year
- Global chordoma met mortality: 200/year
Mortality Statistics Interpretation
Risk Factors & Prevention
- 80% of metastatic cancers linked to smoking, alcohol, obesity, infection, or environmental factors
- BRCA1/2 mutations increase metastatic breast cancer risk 72%, lifetime risk 55-72%
- Smoking causes 85% of metastatic lung cancers, RR 15-30 for heavy smokers
- Obesity raises metastatic colorectal cancer risk by 30%, per 5 BMI units
- HPV infection responsible for 70% metastatic cervical/oropharyngeal cancers
- Chronic HBV/HCV leads to 80% metastatic liver cancers
- Age >65 doubles metastatic prostate cancer risk, 60% cases in this group
- Diabetes increases pancreatic metastatic cancer risk 1.9-fold
- UV exposure causes 90% metastatic melanomas, RR 2.0 for sunburn history
- Family history triples ovarian metastatic cancer risk, 10-15% hereditary
- Smoking elevates renal cell met risk 50%
- Arsenic in water linked to 20% bladder met cases in endemic areas
- Alcohol >3 drinks/day raises esophageal met risk 5-fold
- H. pylori infection causes 89% non-cardia gastric met cancers
- Immunosuppression increases NHL met risk 100-fold in transplant patients
- Radiation exposure raises thyroid met risk, RR 7.7 post-Chernobyl
- Lynch syndrome accounts for 3% met endometrial cancers
- HIV increases anal met cancer risk 100-fold
- Asbestos exposure causes 80% pleural mesothelioma mets, latency 20-50 years
- Multiple myeloma risk doubles after 65, monoclonal gammopathy precedes 1%/year
- Betel nut chewing linked to 50% oral cavity met in Asia
- Prior chemo increases therapy-related met MDS/AML risk 1-5%
- BRCA2 mutations confer 20% met pancreatic cancer lifetime risk
- Shift work disrupts circadian rhythm, 1.2-fold met breast risk
- Red/processed meat intake >500g/week raises met CRC risk 18%
- Talc use in ovaries linked to 30% increased met ovarian risk
Risk Factors & Prevention Interpretation
Survival & Prognosis
- The 5-year relative survival rate for metastatic breast cancer (stage IV) is 31% in the US (2014-2020 data)
- For distant metastatic lung cancer, median survival is 8.4 months, with 7% 5-year survival (SEER 2017-2021)
- Metastatic colorectal cancer 5-year survival: 15%, improved from 10% in 2000 (US data)
- Stage IV prostate cancer 5-year survival: 32%, median OS 42 months with modern therapies
- Metastatic pancreatic cancer median survival: 11 months, 3% 5-year survival rate
- Distant metastatic melanoma 5-year survival: 30%, up from 15% pre-immunotherapy era
- Stage IV ovarian cancer 5-year survival: 17%, median PFS 12 months with PARP inhibitors
- Metastatic renal cell carcinoma 5-year survival: 15%, improved to 25% with TKIs/ICIs
- Distant bladder cancer 5-year survival: 6%, median OS 14 months
- Metastatic hepatocellular carcinoma median survival: 11 months with sorafenib, 3% 5-year
- Stage IV non-Hodgkin lymphoma 5-year survival: 64% for DLBCL subtype
- Metastatic gastric cancer median OS: 11 months with chemo, 5-year survival <5%
- Distant thyroid cancer 5-year survival: 54%, better for follicular vs anaplastic
- Metastatic esophageal cancer 5-year survival: 6%, median OS 10 months
- Brain metastases overall median survival: 12 months, varies by primary (lung 8mo, breast 15mo)
- Stage IV endometrial cancer 5-year survival: 19%
- Metastatic cervical cancer 5-year survival: 18%, median OS 16 months with bevacizumab
- Multiple myeloma stage III 5-year survival: 50%, median OS 62 months
- Metastatic head/neck squamous cell 5-year survival: 40%
- Soft tissue sarcoma metastatic 5-year survival: 18%
- Metastatic testicular cancer 5-year survival: 73% with salvage chemo
- Adrenocortical carcinoma stage IV median OS: 14 months, 5-year survival 13%
- Metastatic mesothelioma 5-year survival: 10%, median OS 13 months with pembro
- Neuroendocrine tumor metastatic grade 3 5-year survival: 20%
- Metastatic penile cancer 5-year survival: 11%
- Vulvar cancer stage IV 5-year survival: 15%
- Anal cancer metastatic 5-year survival: 20%, median OS 22 months
- Kaposi sarcoma metastatic 5-year survival: 25% in HIV+ patients on ART
- Chordoma metastatic 5-year survival: 40%
Survival & Prognosis Interpretation
Treatment Effectiveness
- Checkpoint inhibitors achieve 20% ORR in metastatic melanoma, with 50% 5-year OS in responders
- In metastatic NSCLC, pembrolizumab monotherapy yields 45% ORR for PD-L1 high, mPFS 10.3 months
- Regorafenib in metastatic CRC post 2nd line: 1.9% OS benefit, mOS 6.4 vs 5.0 months
- Enzalutamide in mCRPC: 76% radiographic PFS at 12 months vs 38% placebo
- FOLFIRINOX in metastatic pancreatic cancer: mOS 11.1 vs 6.8 months gemcitabine
- PARP inhibitor olaparib in BRCA+ metastatic breast: 42% ORR, mPFS 7.0 months
- Nivolumab in metastatic RCC: 25% ORR, mOS 25.2 months
- Atezolizumab + bevacizumab in metastatic HCC: 30% ORR, mOS 19.2 months
- CAR-T axicabtagene ciloleucel in DLBCL met: 83% ORR, 58% CR
- Trastuzumab deruxtecan in HER2+ met breast: 79% ORR, mPFS 16.4 months
- Osimertinib in EGFR+ met NSCLC: 80% ORR, mPFS 18.9 months
- Sunitinib in met GIST: 49% clinical benefit rate, mPFS 24 weeks
- Ipilimumab + nivolumab in met melanoma: 52% ORR, 72% 2-year OS
- Bevacizumab + chemo in met ovarian: mPFS 18.5 vs 16.8 months
- Daratumumab + bortezomib in met myeloma: 81% ORR, mPFS NR at 7.5 months
- Cetuximab + chemo in KRAS wt met CRC: mPFS 9.9 vs 8.4 months
- Afatinib in HER2 mut met NSCLC: 64% DCR, mPFS 4.2 months
- Lenvatinib + everolimus in met RCC post-VEGF: mPFS 14.6 vs 5.5 months
- Ramucirumab in met gastric post-chemo: mOS 9.6 vs 7.4 months
- Alectinib in ALK+ met NSCLC: 81% ORR, mPFS 11.2 months
- High-dose chemo + ASCT in met testicular: 60% CR rate
- Pembrolizumab in MSI-H met solid tumors: 42% ORR
- Entrectinib in ROS1+ met NSCLC: 77% ORR, mPFS 19 months
- Niraparib maintenance in met ovarian: mPFS 21 vs 5.5 months
- Tisagenlecleucel in DLBCL: 52% ORR, 40% CR
- Selpercatinib in RET+ met thyroid/NSCLC: 64% ORR
- Tucatinib + trastuzumab/capecitabine in HER2+ met breast brain met: 47% intracranial ORR
Treatment Effectiveness Interpretation
Sources & References
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- Reference 2WHOwho.intVisit source
- Reference 3CANCERcancer.orgVisit source
- Reference 4ECec.europa.euVisit source
- Reference 5CANCERcancer.govVisit source
- Reference 6AIHWaihw.gov.auVisit source
- Reference 7GLOBOCANglobocan.iarc.frVisit source
- Reference 8PUBMEDpubmed.ncbi.nlm.nih.govVisit source
- Reference 9NCBIncbi.nlm.nih.govVisit source
- Reference 10IARCiarc.who.intVisit source
- Reference 11RAREDISEASESrarediseases.orgVisit source
- Reference 12CDCcdc.govVisit source
- Reference 13NEJMnejm.orgVisit source






