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How do you measure if tarceva (erlotinib) is working on the lung cancer?  how do you measure the efficacy?

19 doctors weighed in
Dr. Ritesh Rathore
Internal Medicine - Hematology & Oncology
15 doctors agree

In brief: Repeat CT scanning

Repeat ct scaning after 2-3 months of tarceva (erlotinib) use is done to measure the size of lung cancer lesions and to see if they are shrinking.
Patients who get a severe skin rash with tarceva (erlotinib) are often likely to benefit more from tarceva (erlotinib) therapy.

In brief: Repeat CT scanning

Repeat ct scaning after 2-3 months of tarceva (erlotinib) use is done to measure the size of lung cancer lesions and to see if they are shrinking.
Patients who get a severe skin rash with tarceva (erlotinib) are often likely to benefit more from tarceva (erlotinib) therapy.
Dr. Ritesh Rathore
Dr. Ritesh Rathore
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1 comment
Dr. Sahba Ferdowsi
great answer! Wishing you'all the best.
Dr. Liawaty Ho
Internal Medicine - Hematology & Oncology
3 doctors agree

In brief: How to measure

At least two ways- - clinically- there is a correlation between the presence of acneiform rash -usually on the head/face-after you take tarceva (erlotinib)- with the efficacy of tarceva (erlotinib).
The rash will start to appear within the first 2-3 weeks after you start tarceva (erlotinib). ~ imaging finding. Ct scan or pet/ct after a few months on tarceva (erlotinib)- will tell you whether the cancer responds to tarceva (erlotinib).

In brief: How to measure

At least two ways- - clinically- there is a correlation between the presence of acneiform rash -usually on the head/face-after you take tarceva (erlotinib)- with the efficacy of tarceva (erlotinib).
The rash will start to appear within the first 2-3 weeks after you start tarceva (erlotinib). ~ imaging finding. Ct scan or pet/ct after a few months on tarceva (erlotinib)- will tell you whether the cancer responds to tarceva (erlotinib).
Dr. Liawaty Ho
Dr. Liawaty Ho
Thank
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