TOKYO and XIAMEN, April 28, 2026 — Riken Genesis Co., Ltd., Amoy Diagnostics Co., Ltd. (“AmoyDx”), and Precision Medicine Asia Co., Ltd. (“PREMIA”) today announced that the Japanese Ministry of Health, Labour and Welfare (MHLW) has approved the AmoyDx® Pan Lung Cancer PCR Panel (the “AmoyDx® PLC Panel”) as a companion diagnostic (CDx) for RYBREVANT® or RYBROFAZ® plus chemotherapy in Japan.
The combination therapy of RYBREVANT® or RYBROFAZ® plus chemotherapy is indicated for the treatment of patients with unresectable, advanced, or recurrent non-small cell lung cancer (NSCLC) harboring epidermal growth factor receptor (EGFR) exon 20 insertion mutations, in addition to previously approved EGFR exon 19 deletions or exon 21 L858R substitutions.
Janssen Pharmaceutical K.K., a Johnson & Johnson company, is the marketing authorization holder for RYBREVANT® and RYBROFAZ® in Japan.
Developed using cutting-edge PCR technology, the AmoyDx® PLC Panel enables the simultaneous detection of activating alterations in 11 key driver genes: EGFR, ALK, ROS1, KRAS, BRAF, HER2, RET, MET, NTRK1, NTRK2, and NTRK3. It also identifies actionable mutations in seven of these genes (EGFR, ALK, ROS1, BRAF, MET exon 14 skipping, KRAS, and RET) that are directly associated with 20 targeted therapies for NSCLC. This approval marks a significant advancement in precision oncology, offering rapid and sensitive mutation detection that can substantially improve patient outcomes.
“With this approval, the AmoyDx® PLC Panel can now be used as a CDx to identify patients with unresectable, advanced, or recurrent NSCLC harboring EGFR exon 20 insertion mutation who may benefit from treatment with RYBREVANT® or RYBROFAZ®, thereby expanding their therapeutic options,” said Yuko Oi, President and CEO of Riken Genesis; Li-Mou Zheng, Ph.D., Founder and Chairman of AmoyDx; and Vivian Liu, President and CEO of PREMIA.
About AmoyDx PLC Panel:
About Riken Genesis Co., Ltd.
RIKEN GENESIS, founded in October 2007, provides lab-assay services as well as products for genetic testing based on cutting-edge gene analysis technologies and bioinformatics, and has experience in the field of personalized medicine. The company provides highly reliable tests based on international quality standards, as demonstrated by its CLIA certification, being the first organization in Japan to meet this U.S. quality control standard for clinical laboratories. For more information, please visit www.rikengenesis.jp
About Amoy Diagnostics Co., Ltd. (AmoyDx, SZSE: 300685)
AmoyDx is at the forefront of championing molecular diagnostics for cancer, committed to enhancing patient outcomes worldwide through innovative diagnostic solutions and breaking barriers for global precision oncology adoption. The company is recognized for its excellence in precision medicine, driving advancements in cancer diagnosis through its extensive collaboration with pharmaceutical companies. For more information, please visit www.amoydiagnostics.com or follow us at LinkedIn.
About Precision Medicine Asia (PREMIA)
PREMIA offers an integrated platform for the development of innovative oncology therapies and diagnostics in Asia, the fastest growing market for the pharmaceutical industry. PREMIA also manages a clinical-genomic lung cancer registry, the largest in the region, which includes more than 26,000 patients and allows an efficient patient identification process for clinical trial enrollment through participation by more than 200 hospitals in Japan, Taiwan, Malaysia and Thailand and with sites planned for Indonesia and the Philippines in 2026. For more information, please visit www.premia-inc.com
Contacts:
Atsushi Tsuchiya
General Manager, Marketing department
Tel: +81-3-5759-6042
info2@rikengenesis.jp
Yash Nahata
Vice President, International Business
Info@amoydx.com
Vivian Liu
President and CEO
Tel: +81-3-5403-5973
info@premia-inc.com
The combination therapy of RYBREVANT® or RYBROFAZ® plus chemotherapy is indicated for the treatment of patients with unresectable, advanced, or recurrent non-small cell lung cancer (NSCLC) harboring epidermal growth factor receptor (EGFR) exon 20 insertion mutations, in addition to previously approved EGFR exon 19 deletions or exon 21 L858R substitutions.
Janssen Pharmaceutical K.K., a Johnson & Johnson company, is the marketing authorization holder for RYBREVANT® and RYBROFAZ® in Japan.
Developed using cutting-edge PCR technology, the AmoyDx® PLC Panel enables the simultaneous detection of activating alterations in 11 key driver genes: EGFR, ALK, ROS1, KRAS, BRAF, HER2, RET, MET, NTRK1, NTRK2, and NTRK3. It also identifies actionable mutations in seven of these genes (EGFR, ALK, ROS1, BRAF, MET exon 14 skipping, KRAS, and RET) that are directly associated with 20 targeted therapies for NSCLC. This approval marks a significant advancement in precision oncology, offering rapid and sensitive mutation detection that can substantially improve patient outcomes.
“With this approval, the AmoyDx® PLC Panel can now be used as a CDx to identify patients with unresectable, advanced, or recurrent NSCLC harboring EGFR exon 20 insertion mutation who may benefit from treatment with RYBREVANT® or RYBROFAZ®, thereby expanding their therapeutic options,” said Yuko Oi, President and CEO of Riken Genesis; Li-Mou Zheng, Ph.D., Founder and Chairman of AmoyDx; and Vivian Liu, President and CEO of PREMIA.
About AmoyDx PLC Panel:
| (1) Product name | AmoyDx® Pan Lung Cancer PCR Panel |
| (2) Approval No. | 30300EZX00076000 |
| (3) Purpose of use | Detection of EGFR gene mutations, ALK fusion genes, ROS1 fusion genes, BRAF gene mutations, METex14 skipping mutations, KRAS gene mutations and RET fusion genes in nucleic acids extracted from cancer tissue. Used as an adjunct to determine the indications of the following twenty antineoplastic agents for patients with NSCLC. ・EGFR mutations Molecularly targeted drugs for EGFR ・EGFR exon 20 insertion mutation Amivantamab (genetically engineered) (Drugs containing amivantamab (genetically engineered) are also covered) ・ALK fusion genes Crizotinib, Alectinib hydrochloride, Brigatinib and Lorlatinib ・ROS1 fusion genes Crizotinib, Entrectinib, Repotrectinib and Taletrectinib adipate ・BRAF V600E mutation Combined administration of Dabrafenib mesylate and Trametinib dimethyl sulfoxide ・MET exon 14 skipping mutations Tepotinib hydrochloride hydrate, Capmatinib hydrochloride hydrate and Gumarontinib hydrate ・KRAS G12C mutation Sotorasib ・RET fusion gene Selpercatinib |
| (4) Testing method | Real-time PCR |
| (5) Sample | FFPE tissue and fresh frozen tissue in which the presence of tumor cells was confirmed |
| (6) Package size | 12 tests / kit |
| (7) Marketing Authorization Holder | Riken Genesis Co., Ltd. |
| (8) Manufacturer | Amoy Diagnostics Co., Ltd. |
About Riken Genesis Co., Ltd.
RIKEN GENESIS, founded in October 2007, provides lab-assay services as well as products for genetic testing based on cutting-edge gene analysis technologies and bioinformatics, and has experience in the field of personalized medicine. The company provides highly reliable tests based on international quality standards, as demonstrated by its CLIA certification, being the first organization in Japan to meet this U.S. quality control standard for clinical laboratories. For more information, please visit www.rikengenesis.jp
About Amoy Diagnostics Co., Ltd. (AmoyDx, SZSE: 300685)
AmoyDx is at the forefront of championing molecular diagnostics for cancer, committed to enhancing patient outcomes worldwide through innovative diagnostic solutions and breaking barriers for global precision oncology adoption. The company is recognized for its excellence in precision medicine, driving advancements in cancer diagnosis through its extensive collaboration with pharmaceutical companies. For more information, please visit www.amoydiagnostics.com or follow us at LinkedIn.
About Precision Medicine Asia (PREMIA)
PREMIA offers an integrated platform for the development of innovative oncology therapies and diagnostics in Asia, the fastest growing market for the pharmaceutical industry. PREMIA also manages a clinical-genomic lung cancer registry, the largest in the region, which includes more than 26,000 patients and allows an efficient patient identification process for clinical trial enrollment through participation by more than 200 hospitals in Japan, Taiwan, Malaysia and Thailand and with sites planned for Indonesia and the Philippines in 2026. For more information, please visit www.premia-inc.com
Contacts:
Atsushi Tsuchiya
General Manager, Marketing department
Tel: +81-3-5759-6042
info2@rikengenesis.jp
Yash Nahata
Vice President, International Business
Info@amoydx.com
Vivian Liu
President and CEO
Tel: +81-3-5403-5973
info@premia-inc.com
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