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  • FDA Approves First...

FDA Approves First Targeted Therapy for resistant Lung Cancer with specific genetic mutation

Written By : Hina Zahid |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2021-05-29T10:00:05+05:30  |  Updated On 30 May 2021 3:21 PM IST
FDA Approves First Targeted Therapy for resistant Lung Cancer   with specific genetic mutation
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The U.S. Food and Drug Administration has approved Lumakras (sotorasib) as the first treatment for adult patients with non-small cell lung cancer whose tumors have a specific type of genetic mutation called KRAS G12C and who have received at least one prior systemic therapy. This is the first approved targeted therapy for tumors with any KRAS mutation, which accounts for approximately 25% of mutations in non-small cell lung cancers. KRAS G12C mutations represent about 13% of mutations in non-small cell lung cancers.

"KRAS mutations have long been considered resistant to drug therapy, representing a true unmet need for patients with certain types of cancer," said Richard Pazdur, M.D., director of the FDA's Oncology Center of Excellence and acting director of the Office of Oncologic Diseases in the FDA's Center for Drug Evaluation and Research. "Today's approval represents a significant step towards a future where more patients will have a personalized treatment approach."

Lung cancer, the most common cancer type with the highest mortality, can largely be categorized by the genetic mutations that cause it. KRAS is a type of mutation in a group of genes that help regulate cell growth and division.

Researchers evaluated the efficacy of Lumakras in a study of 124 patients with locally advanced or metastatic KRAS G12C-mutated non-small cell lung cancer with disease progression after receiving an immune checkpoint inhibitor and/or platinum-based chemotherapy. The major outcomes measured were objective response rate (proportion of patients whose tumor is destroyed or reduced) and duration of response. The objective response rate was 36% and 58% of those patients had a duration of response of six months or longer.

The approved 960 milligram 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, the agency is requiring a postmarketing trial to investigate whether a lower dose will have a similar clinical effect.

The most common side effects of Lumakras include diarrhea, musculoskeletal pain, nausea, fatigue, liver damage and cough. Lumakras should be withheld if patients develop symptoms of interstitial lung disease and permanently discontinued if interstitial lung disease is confirmed. Health care professionals should monitor a patient's liver function tests prior to starting and when taking Lumakras. If a patient develops liver damage, Lumakras should be withheld, dose reduced or permanently discontinued. Patients should avoid taking acid-reducing agents, drugs that induce or are substrates for certain enzymes in the liver and drugs that are substrates of the P-glycoprotein while taking Lumakras.

Lumakras was approved using the Accelerated Approval pathway, under which the FDA may approve drugs for serious conditions where there is unmet medical need and a drug is shown to have certain effects that are reasonably likely to predict a clinical benefit to patients. Further study is required to verify and describe anticipated clinical benefits of Lumakras.

The FDA granted this application Fast Track, Priority Review and Breakthrough Therapy designations.

Lumakras also received Orphan Drug designation, which provides incentives to assist and encourage the development of drugs for rare diseases.

This review was conducted under Project Orbis, an initiative of the FDA Oncology Center of Excellence. Project Orbis provides a framework for concurrent submission and review of oncology drugs among international partners. For this review, FDA collaborated with the Australian Therapeutic Goods Administration (TGA), the Brazilian Health Regulatory Agency (ANVISA), Health Canada and Medicines and Healthcare products Regulatory Agency (MHRA; United Kingdom). The application reviews are ongoing at the other regulatory agencies.

The FDA granted approval of Lumakras to Amgen Inc.

Along with Lumakras, the FDA also approved the QIAGEN therascreen KRAS RGQ PCR kit (approval granted to QIAGEN GmbH) and the Guardant360 CDx (approval granted to Guardant Health, Inc.) as companion diagnostics for Lumakras today. The QIAGEN GmbH test analyzes tumor tissue and the Guardant Health, Inc. test analyzes plasma specimens to determine if Lumakras is an appropriate treatment for patients. If no mutation is detected in a plasma specimen, the patient's tumor should be tested.


lung cancerdrug therapyfda approvedu s food and drug administrationlumakraskras g12c
Hina Zahid
Hina Zahid

    Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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