Mednet Logo

Would you consider applying the principles of STAMPEDE with <5 oligometastatic non-regional lymph nodes from prostate cancer?

STAMPEDE arm H uses the CHAARTED definition for bone metastases in the axial skeleton. There is no mention of patients with non-regional nodes. Would you offer 55GY/20fx to men with non-regional (common iliac) nodes?
3 Answers
Mednet Member
Mednet MemberInvited Expert
Radiation Oncology · Varian Medical Systems/Allegheny health network
Answered on

About 25% in STAMPEDE had low volume metastatic disease with no bone Mets, with most having a non-regional node in that category to qualify as low volume Mets.

That being said, common iliac could be the primary drainage of prostate cancer based on SNLN studies and I would favor treating like node-pos...

Join for free or sign in to see the full answer

Mednet Member
Mednet Member
Radiation Oncology · RadiantCare
Answered on · Updated on

There isn't "no mention" of non-regional nodal disease in STAMPEDE, nor does one have to extrapolate the principles.

From the paper directly: "Low metastatic burden disease is sometimes known as oligometastatic. Although this term is widely used, it is imprecise and potentially misleading because it ...

Join for free or sign in to see the full answer

Mednet Member
Mednet MemberInvited Expert
Radiation Oncology · Baylor College Of Medicine
Answered on · Updated on

There was a subset analysis of STAMPEDE (Ali et al., PMID 33599706). They looked at refined definitions of metastases which looked at: bone Mets, visceral Mets, and non-regional nodal disease.

Prostate RT had no survival benefit with visceral Mets.
It appeared best with 3 or less bone Mets.
Non-regi...

Join for free or sign in to see the full answer