Osteoporosis drug Romosozumab receives marketing approval in Japan

Monoclonal antibody romosozumab gains first-ever marketing approval in Japan for the treatment of osteoporosis in patients at high risk of fracture announced Amgen and UCB in a joint press release. The drug will be known as Evenity in Japan and would be developed by Amgen Astellas BioPharma K.K.–a joint venture between Amgen and Astellas Pharma Inc., headquartered in Tokyo.

Romosozumab has a dual effect on the bone– it works by binding and inhibiting the activity of the protein sclerostin which increases bone formation and decreases bone breakdown.

Japanese people have the longest life expectancy in the world and with that comes the burden of osteoporotic fractures. In Japan, the osteoporotic fracture is the leading cause of disability that requires long term nursing home care.

"The approval of EVENITY in Japan is a significant milestone that reinforces our commitment to bringing effective treatments to the millions of patients who suffer from osteoporosis," said David M. Reese, M.D., executive vice president of Research and Development at Amgen in a news release.

"A patient with a prior osteoporotic fracture is twice as likely to suffer another fracture if left undiagnosed and without appropriate treatment. With this approval, physicians in Japan now have a new medicine to help patients reduce their risk of fracture."

The approval is based on results of two phase 3 clinical trials– FRAME and BRIDGE. The FRActure study in postmenopausal woMen with ostEoporosis (FRAME), included 7,180 postmenopausal women with osteoporosis. The women received romosozumab 210 mg s.c. or placebo once monthly for 12 months, followed by denosumab 60 mg s.c. once every 6 months in both groups for 12 months. The drug significantly increased spine and hip BMD and reduced vertebral and clinical fracture risk.

The BRIDGE study (placeBo-contRolled study evaluating the efficacy anD safety of romosozumab in treatinG mEn with osteoporosis) involved 245 men with osteoporosis (163 romosozumab, 82 placebo) randomized 2:1 to receive either 210 mg romosozumab or placebo subcutaneously once monthly for 12 months. Men on Romosozumab showed a significant bone mineral density (BMD) gains at the lumbar spine, total hip and femoral neck compared to placebo at six and 12 months.

The approval is also significant because FDA rejected Amgen’s initial marketing application for Romosozumab in the US because of cardiovascular side effects of the drug in ARCH trial. The drug is also under regulatory review in Europe.

The Japanese Pharmaceuticals and Medical Devices Agency undertook a thorough review of the safety profile of EVENITY, including the cardiovascular safety findings in the ARCH trial.

Toshio Matsumoto, M.D., Ph.D., emeritus professor of Tokushima University and the advisor of the university's Fujii Memorial Institute of Medical Sciences said in the press release, "Physicians have been waiting for a new therapeutic option. I have great hope that the approval of EVENITY will help reduce the fracture risk for patients in Japan."

"Patients with a prior fracture face the risk of having another fracture and particularly stand to benefit from the option of a new bone-forming agent," he further added.

Meanwhile, During the second review cycle, the US Food and Drug Administration (FDA) Bone, Reproductive, and Urologic Drugs Advisory Committee (BRUDAC) recently voted in favor of approving Amgen and UCB’s romosozumab (EVENITY) In the US for the treatment of postmenopausal women with osteoporosis at high risk for fracture. The committee indicated that the drug benefits for treatment of postmenopausal osteoporosis outweigh its risk.

Press release

KEYTRUDA gains FDA approval for treatment of recurrent or metastatic cervical cancer

The U.S. Food and Drug Administration (FDA) has approved Merck’s pembrolizumab (KEYTRUDA®), for the treatment of patients with recurrent or metastatic cervical cancer whose disease had worsened on or after chemotherapy and whose tumors express programmed cell death ligand 1 (PD-L1), as determined by an FDA approved test.

The US FDA has approved the Dako PD-L1 IHC 22C3 pharmDx assay for expanded use as a companion diagnostic test for Keytruda for cervical cancer.

The approval comes in way ahead of the previously decided date of June 28. Furthermore, the drug is approved under the FDA’s accelerated approval regulations based on tumor response rate and durability of response.

Continued approval in future will be based upon verification and description of clinical benefit in the ongoing trials ahead.

The accelerated approval was based on results of ongoing KEYNOTE-158, a multi-center, non-randomized, open-label, multi-cohort trial (NCT02628067). The trial enrolled patients with multiple types of advanced solid tumor, who have not responded to usual chemotherapy or are intolerant to it.

Patients with autoimmune diseases or requiring immunosuppression were excluded from the trial.

The patients received KEYTRUDA intravenously at a dose of 200 mg every three weeks until unacceptable toxicity or documented disease progression or for 24 months in patients without disease progression.

Among the 98 patients with advanced cervical cancer, 77 (79%) had tumors that expressed PD-L1 with a Combined Positive Score (CPS) ≥1 and have received at least one line of chemotherapy in the metastatic setting.

The objective response rate in these 77 patients was 14.3 percent, with a complete response in 2 patients (2.6%) and partial response in 9 patients (11.7%).

Ninety-one percent of patients experienced duration of response exceeding 6 months or longer. Eight patients discontinued the drug because of serious side effects like anemia, fistula, hemorrhage, and infection.

The other common side effects of KEYTRUDA are fatigue, musculoskeletal pain, diarrhea, pain and abdominal pain and decreased appetite (21%).

 No responses were observed in patients whose tumors did not have the PD-L1 expression (CPS<1).

KEYTRUDA is a humanized monoclonal antibody that blocks the interaction between PD-1 and its ligands, PD-L1 and PD-L2, thereby activating T lymphocytes which may affect both tumor cells and healthy cells. This increases the ability of the body's immune system to help detect and fight tumor cells.

Dr. Roy Baynes, senior vice president and head of global clinical development, chief medical officer, Merck Research Laboratories said, “KEYTRUDA is now the first anti-PD-1 therapy approved for the treatment of advanced cervical cancer, providing an important new second-line option for certain patients with this disease. This approval also marks the first indication for KEYTRUDA in gynecologic cancer and reflects our ongoing commitment to bring forward innovative treatment options across a broad range of cancers, including cancers that disproportionately affect women,” in a news release.

KEYTRUDA has already been approved by FDA for treatment of melanoma, head and neck cancer, lung cancer, urothelial cancer, and gastric cancer.

Merck News Release 

Ob/Gyn Updated Facebook page