InvestorsHub Logo
Post# of 251852
Next 10
Followers 4
Posts 332
Boards Moderated 0
Alias Born 12/22/2014

Re: DewDiligence post# 213665

Thursday, 09/14/2017 8:04:14 PM

Thursday, September 14, 2017 8:04:14 PM

Post# of 251852
from MRTX's own press release which you linked

CBL mutations are present in 1.5% of NSCLC, 3.5% of melanoma, and 2% of cancers of unknown origin.



We need many kind of such revolutions. See Ignyta (RXDX) for example:

A preliminary objective response rate of 75 percent was observed in patients with non-KIF5B-RET fusions, with six of eight patients achieving a confirmed partial response. In contrast, those with KIF5B-RET fusions (14 patients) did not demonstrate a RECIST response. These data are consistent with previous studies that suggest that KIF5B-RET fusions may be less susceptible to RET inhibition. https://ignyta.com/investors/press-release-article/1039859/



So the drug, RXDX-105, only works for a part of RET fusions. But if it's a non-KIF5B-RET fusion, then it appears to work quite well.

Commercially, in terms of numbers, some targeted therapy directed to EGFR in NSCLC would grab quite a large share of the market. We had discussed AZN's FLAURA here on the forum

EGFR mutations are present in around 15% of NSCLC in Western populations, rising to 35% in Asian populations. EGFR inhibitors are superior to chemotherapy in the first line treatment of these patients. However, despite high response rates and good progression-free survival, patients invariably develop resistance to drugs such as erlotinib and gefitinib. In the majority of patients this resistance is mediated by a T790M mutation. www.esmo.org/Conferences/ESMO-2017-Congress/Press-Media/Press-Releases/Osimertinib-Improves-Progression-free-Survival-in-Patients-with-EGFR-Mutated-Lung-Cancer



Well, and then there is the whole space beyond individual mutations. IDRA had some results at ESMO which some people on Twitter opined to be a confirmation of TLR 9 agonists and by this supporting DVAX SD101 (one such TLR 9 agonist).

Ahh. And if you're more venture capital oriented, this platform company would have been interesting http://rigontec.com/ (RIG-I ... somewhat related to TLR in the chain of effects, but I am a layman to explain better) ... however, it was just bought by MRK.

... too few hours in the day to follow everything, sigh.

Join the InvestorsHub Community

Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.