Category Archives: Resistance to treatment

Discontinuing Crizotinib treatment

Abstract e20610 is from Canada and covers 97 patients. Post Crizotinib treatment 43% received Ceritinib, 20% received chemo and 37% received no additional treatment. Median overall survival was: 0.9 months for those who received no additional treatment, 7.6 months for … Continue reading

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HSP90 and Crizotinib

Abstract 9059 basically flung that administrating an HSP90 inhibitor at the same time as Crizotinib did not delay the development of resistance to Crizotinib.

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Alectinib, mutations, and liquid biopsy

Abstract 9061 pooled data from two clinical trials. 129 patients had biopsies done after Crizotinib but before Alectinib. Plasma samples were available for all 272 patients at baseline and for about 50% at progression. At baseline 13 functional ALK mutations … Continue reading

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Alectinib Japan trial abstract

Abstract 9008 covers the J-ALEX phase 3 trial comparing Crizotinib (arm A) with Alectinib (arm B) in TKI naive patients. There were 207 patients at 41 centers in Japan randomized between the two arms. Arm A had a median PFS … Continue reading

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Lorlatinib abstract

Abstract 9009 is a phase 1 dose escalation trial (dose levels ranged from 10-200 mg and the Recomended phas 2 dose was 100 mg once daily). There were 54 patients as of November 30, 2015. 41 are ALK positive and … Continue reading

Posted in 3922 - lorlatinib by Pfizer, Brain metastases, Lung cancer, Potential Treatments, Research, Resistance to treatment, Side Effects | Leave a comment

Some Summaries of ASCO abstracts

So there are actually 128 different abstracts that use the term ALK in either the body or the title of the abstract. I can not look at all of them. If you want to look them over you can go … Continue reading

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Article on latest develpments

In January 2016 an article was published that reviewed the current status of nine 2nd generation and 3rd generation ALK inhibitors, some HSP 90 inhibitors and briefly 2 immunotherapies for lung cancer. Much of that research has been described in … Continue reading

Posted in 3922 - lorlatinib by Pfizer, alectinib - Alecensa from Chugai - Roche - GenenTech, AP26113 - brigatinib from Ariad, ASP3026 from Astellas, CEP-37440, ceritinib - Zykadia from Novartis, Imunotherapies, Lung cancer, NMS-E628, Potential Treatments, Research, Resistance to treatment, RXDX-101 - entrectinib - by Ignyta, Side Effects, TSR-011 from Tesaro, X-396 - ensartinib from Xcovrery | Leave a comment

Long term phase 1 data for Ceritinib

On March 10 an article was published on the long term results of a phase 1 trial of Ceritinib. The trial enrolled 255 patients from January 2011 and July 2013 of whom 246 had ALK + lung cancer. Data cutoff … Continue reading

Posted in Brain metastases, ceritinib - Zykadia from Novartis, crizotinib - Xalkori from Pfizer, Lung cancer, Research, Resistance to treatment, Side Effects | Leave a comment

Resensitization to Crizotinib by the Lorlatinib ALK Resistance Mutation L1198F.

Patients taking Pfizer’s Lorlatinib (after developing resistance to Crizotinib) can develop the L1198F mutation. The L1198F mutation causes the cancer cells that were previously resistant to Crizotinib to become sensitive to Crizotinib again. Essentially the two drugs can require mutually … Continue reading

Posted in 3922 - lorlatinib by Pfizer, Brain metastases, crizotinib - Xalkori from Pfizer, Lung cancer, Potential Treatments, Research, Resistance to treatment | Leave a comment

Updated Clinical Data on X-396

The reported research found that the objective response rate was 88% (7/8) in ALK-TKI treatment-naïve patients, and 84% (10/12) in crizotinib-resistant patients. http://www.cbs19.tv/story/30920448/xcovery-announces-updated-clinical-data-on-x-396-in-patients-with-alk-non-small-cell-lung-cancer-at-the-4th-aacr-iaslc-international-joint-conference

Posted in Lung cancer, Potential Treatments, Research, Resistance to treatment, X-396 - ensartinib from Xcovrery | Leave a comment