RE:Accelerated Approval - what are the chances?Below is another recent
Accelerated Approval example showing
only a 3% CR that you would have expected analyst Uddin to put into perspectives and annexed to its report analysis so his Clients could be in a better position to assess the magnitude of our CR %.
FGPFUD should have had this basic critical stance toward the report of analyst Uddin. But he cannot as he doesn't do any digging, too lazy to understand the whole picture. But when it comes to whine of TLT management, he's all there. All there ... with superficial arguments, lacking basic information, and so, lacking global perspectives.
May 28, 2022:
Approval was based on CodeBreaK 100, a multicenter, single-arm, open label clinical trial (NCT03600883) which included patients with locally advanced or metastatic NSCLC with KRAS G12C mutations. Efficacy was evaluated in 124 patients whose disease had progressed on or after at least one prior systemic therapy. Patients received sotorasib 960 mg orally daily until disease progression or unacceptable toxicity.
The main efficacy outcome measures were objective response rate (ORR) according to RECIST 1.1, as evaluated by blinded independent central review and response duration. The ORR was 36% with a median response duration of 10 months (range 1.3+, 11.1).
The most common adverse reactions (≥ 20%) were diarrhea, musculoskeletal pain, nausea, fatigue, hepatotoxicity, and cough. The most common laboratory abnormalities (≥ 25%) were decreased lymphocytes, decreased hemoglobin, increased aspartate aminotransferase, increased alanine aminotransferase, decreased calcium, increased alkaline phosphatase, increased urine protein, and decreased sodium.
The recommended sotorasib dose is 960 mg orally once daily with or without food.
The approved 960 mg dose is based on available clinical data, as well as pharmacokinetic and pharmacodynamic modeling that support the approved dose. As part of the evaluation for this accelerated approval, FDA is requiring a postmarketing trial to investigate whether a lower dose will have a similar clinical effect.
Results From Phase 2 CodeBreaK 100 Show LUMAKRAS™ (sotorasib) Is The First And Only KRAS G12C Inhibitor With Overall Survival Data
LUMAKRAS Shows Median Overall Survival of 12.5 Months in Patients With Previously Treated Non-Small Cell Lung Cancer
Data Confirms Rapid, Deep, and Durable Responses With Median Duration of Response of 11.1 Months
Data Presented at ASCO 2021 and Simultaneously Published in New England Journal of Medicine
The publication includes mature overall survival and duration of response data, and results from subgroup and exploratory biomarker analyses.
LUMAKRAS shows a median overall survival (OS) of 12.5 months among 124 evaluable patients, the majority of which were previously treated with both platinum-based chemotherapy and immunotherapy (81%) (data cutoff of March 15, 2021). The results confirmed an objective response rate (ORR) of 37.1%, duration of response (DoR) of 11.1 months and disease control rate (DCR) of 80.6%, with an additional patient achieving complete response (bringing the total to four (4) complete responses (3.2%) and 42 partial responses) compared to previously reported results. The data published in NEJM are updated from results presented at the International Association for the Study of Lung Cancer (IASLC) 2020 World Conference on Lung Cancer (WCLC) held in January 2021 and are based on a longer follow-up time of 15.3 months.
"Patients with KRAS G12C-mutated non-small cell lung cancer face poor outcomes so we are pleased with these overall survival results and the impact LUMAKRAS may have for patients with this devastating mutation," said David M. Reese, M.D., executive vice president of Research and Development at Amgen. "The results published in the New England Journal of Medicine further confirm the deep and durable responses we have seen with LUMAKRAS throughout the CodeBreaK clinical trial program, the most advanced KRAS G12C clinical trial program with the longest follow-up."
In exploratory analyses, tumor response to LUMAKRAS was consistently observed across a range of biomarker subgroups, including patient subgroups stratified by baseline PD-L1 expression levels and those with STK11 mutation. In the patient subsets separated by baseline PD-L1 expression (n=86), response and tumor shrinkage were observed across the range of baseline PD-L1 expression levels, with the response rate of 48% for the PD-L1 negative group (TPS <1%). Improved efficacy with LUMAKRAS was seen in STK11-mutant group with concurrent wild-type KEAP1 (n=22) with median progression free survival (PFS) of 11.0 months and median OS of 15.3 months.
"Sotorasib is the first KRASG12C inhibitor to show an overall survival benefit, and the data represent a major step forward for patients with KRAS G12C-mutated non-small cell lung cancer where standard of care options are suboptimal," said lead author Ferdinandos Skoulidis, M.D., Ph.D., assistant professor of Thoracic/Head and Neck Medical Oncology at The University of Texas MD Anderson Cancer Center. "KRAS has been one of the most challenging therapeutic targets in cancer research, and these practice-changing results give hope to patients with the KRAS G12C mutation who previously had no targeted treatment options."
LUMAKRAS received approval from the U.S. FDA on May 28, 2021, for the treatment of adult patients with KRAS G12C-mutated locally advanced or metastatic NSCLC, as determined by an FDA-approved test, who have received at least one prior systemic therapy. LUMAKRAS has received accelerated approval based on ORR and DoR. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s).
LUMAKRAS was granted Breakthrough Therapy designation in the U.S. and China. In the U.S., LUMAKRAS was reviewed by the FDA under its Real-Time Oncology Review (RTOR), a pilot program that aims to explore a more efficient review process that ensures safe and effective treatments are made available to patients as early as possible. Amgen is participating in the FDA's Project Orbis initiative and through the initiative, has submitted Marketing Authorization Applications (MAAs) for sotorasib in Australia, Brazil, Canada and the United Kingdom. Additionally, Amgen has submitted an MAA in the EU and New Drug Applications in Japan (J-NDA), Switzerland, South Korea and United Arab Emirates.
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Eoganacht - (12/8/2022 1:28:48 PM)
Accelerated Approval - what are the chances?
8 out of 29 patients (28%) have hit at least 450 days completely cancer free.
Remove the 12 undertreated from the calculation to see just the optimized resu ( these 12 are mostly little different from the first 3 half-dose patients from the phase 1b ) and you have these optimized results at 450 days:
8 out of 17 ( 47% ) patients cancer free (including 3 full dose phase 1 patients) and
6 out of 14 ( 43% ) patients cancer free (including only phase 2 patients)
Surely those numbers, along with the extremely high safety, should be enough for AA.
I'm sure the 6 phase 2 patients who no longer have bladder cancer think so.