Results for brain metastases and ROS1 resistance mutations

woman feeding her dog sitting at the dock

JIDEYTRO was shown to work against disease that had spread to the brain*

Results for people who had received 1 to 4 prior ROS1-targeted therapies

48% intracranial (in the brain) response rate 

Circular chart showing 48% (24 out of 50 people) had their brain tumors shrink or disappear. 26% (13 out of 50 people) had their brain tumors shrink (intracranial partial response). 22% (11 out of 50 people) had their brain tumors disappear (intracranial complete response)

Intracranial duration of response

63% of people who responded

to treatment (15 out of 24) had results that lasted at least 12 months 

Limitations of exploratory findings 

Some study results, including the results above, are called exploratory. Exploratory findings look at additional questions beyond the main study goals. Because the results are from a small number of people, they should be interpreted carefully. These results may not reflect everyone’s experience.

*These people had measurable brain tumors when the clinical trial began and had not received radiation therapy to the brain within 2 months prior to study entry.

At least a 30% decrease as measured by Response Evaluation Criteria in Solid Tumors (RECIST) during 2 different tumor evaluations. RECIST is a standard way to measure how well a patient responds to treatment. It is based on whether tumors shrink, stay the same, get bigger, or spread to a new part of the body.

A complete response (tumor disappearing) does not mean the cancer has been cured.

Individual treatment results may vary. Talk to your doctor to see if JIDEYTRO may be right for you.

JIDEYTRO worked when ROS1+ NSCLC stopped responding to other treatments due to ROS1 resistance mutations

For people who had received 1 to 3 prior ROS1-targeted therapies and who had ROS1 resistance mutations

Overall response rate

50%

(21 out of 42 people) had their tumors shrink* or disappear with JIDEYTRO 

People in the study who saw benefit from JIDEYTRO included those who had a variety of ROS1 resistance mutations, including G2032R (the most common resistance mutation in ROS1+ NSCLC), G2032K, D2033N, F2004C/V, and G1957A.  

Resistance mutations are genetic changes in tumor cells that cause certain treatments to be less effective. They can be detected through biomarker testing during or following treatment.

Because participants had already tried between 1 and 3 ROS1-targeted treatments before JIDEYTRO, the results reflect how the therapy performed in people with advanced treatment histories.

*At least a 30% decrease as measured by Response Evaluation Criteria in Solid Tumors (RECIST) during 2 different tumor evaluations. RECIST is a standard way to measure how well a patient responds to treatment. It is based on whether tumors shrink, stay the same, get bigger, or spread to a new part of the body.

A complete response (tumor disappearing) does not mean the cancer has been cured.

Individual treatment results may vary. Talk to your doctor to see if JIDEYTRO may be right for you.

Talk to your doctor to see if JIDEYTRO may be right for you.

Understanding the different ways results are measured

What is overall response rate?
The proportion of people who saw their tumors shrink by at least 30%* or disappear during treatment and follow-up in the clinical study. This includes both partial response and complete response.

What is partial response?
The cancer has shrunk by at least 30%,* and there are no signs that the cancer has grown anywhere else in the body.

What is complete response?
When signs of a tumor have completely disappeared with no evidence of disease visible on scans or other tests. This does not mean the cancer has been cured.

If cancer is in the brain, the results are measured by intracranial overall response rate, intracranial partial response, and intracranial complete response.

What is duration of response?
The length of time that a person keeps living without their cancer progressing, after seeing a complete response or partial response.

*At least a 30% decrease as measured by Response Evaluation Criteria in Solid Tumors (RECIST) during 2 different tumor evaluations. RECIST is a standard way to measure how well a patient responds to treatment. It is based on whether tumors shrink, stay the same, get bigger, or spread to a new part of the body.

How to take JIDEYTRO

Learn about taking once-daily JIDEYTRO, a medication that can coexist with your routine.

Download JIDEYTRO resources

Explore educational resources as you consider next steps.

NSCLC=non-small cell lung cancer; ROS1+=ROS proto-oncogene 1-positive.