- The first combination drug of a high-dose ARB and a long acting CCB with a powerful antihypertensive effect lasting for 24 hours in Japan -
Tokyo, Japan, December 21, 2012 – Nippon Boehringer Ingelheim Co., Ltd. (Headquarters: Shinagawa-ku, Tokyo; President: Yoshiaki Aono; hereinafter “NBI”) and Astellas Pharma Inc. (Tokyo:4503, Headquarters: Chuo-ku, Tokyo; President & CEO: Yoshihiko Hatanaka; hereinafter “Astellas”) today announced that they have obtained approval for manufacturing and marketing of “Micamlo® Combination Tablets BP,” a combination drug of telmisartan 80 mg, a long-acting angiotensin II type 1 (AT1) receptor blocker (ARB), and amlodipine 5 mg, a long-acting calcium channel blocker (CCB).
“Micamlo® Combination Tablets BP” is the first combination drug of high dose ARB and CCB in Japan. While “Micamlo® Combination Tablets AP” is a combination drug of telmisartan 40 mg and amlodipine 5 mg, the amount of telmisartan in “Micamlo® Combination Tablets BP” has been increased to 80 mg. This is, therefore, expected to maintain a more potent antihypertensive effect for 24 hours compared with that of the conventional ARB/CCB combination drug.
“Micamlo® Combination Tablets BP” can be, in principle, administered when blood pressure is not adequately controlled by any one of treatments with “telmisartan 80 mg in combination with amlodipine 5 mg,” “telmisartan 80 mg,” “telmisartan 40 mg in combination with amlodipine 5 mg,” or “Micamlo® Combination Tablets AP.”
In a Phase III clinical study of “Micamlo® Combination Tablets BP” conducted in Japan, 173 patients analysed with essential hypertension not having achieved a blood pressure control target (diastolic blood pressure ≥ 90 mmHg) with telmisartan 80 mg/day were randomized into either the “Micamlo® Combination Tablets BP”/day or telmisartan 80 mg/day group and received the treatment for 8 weeks. The results showed that systolic blood pressure decreased from baseline by 3.5 mmHg in the telmisartan 80 mg/day group and 18.4 mmHg in the “Micamlo® Combination Tablets BP”/day group. The difference in the decrease in blood pressure between the two groups was 14.9 mmHg; therefore, a potent antihypertensive effect of “Micamlo® Combination Tablets BP” was demonstrated. In addition, diastolic blood pressure decreased by 3.1 mmHg in the telmisartan 80 mg/day group and 12.3 mmHg in the “Micamlo® Combination Tablets BP”/day group. The difference in the decrease in blood pressure between the two groups was 9.1 mmHg, showing a potent antihypertensive effect of “Micamlo® Combination Tablets BP1.”
In a Japanese long-term study, 255 patients analysed and received “Micamlo® Combination Tablets AP” for 6 weeks. Treatment with “Micamlo® Combination Tablets AP” was continued in patients whose diastolic blood pressure lowered to < 90 mmHg and was switched to “Micamlo® Combination Tablets BP” and continued for 8 weeks in patients who did not achieve a blood pressure control target (diastolic blood pressure ≥ 90 mmHg). Thereafter, dosage changes and co-administration with other drugs were permitted, and the treatment was continued further for 40 weeks. The results revealed that systolic blood pressure decreased by 6.9 mmHg at Week 8 and 8.6 mmHg at Week 48 in the “Micamlo® Combination Tablets BP” group; thus, it demonstrated a potent antihypertensive effect. Diastolic blood pressure also decreased by 5.2 mmHg at Week 8 and 7.3 mmHg at Week 48, showing a potent antihypertensive effect2.
In an overseas Phase III clinical study, 562 patients analysed with stage I to II essential hypertension (diastolic blood pressure of ≥ 95 to ≤ 119 mmHg), in whom ambulatory blood pressure monitoring (ABPM) could be performed, were randomized into any one of 4 x 4 groups, telmisartan 0, 20, 40 or 80 mg/day in combination with amlodipine 0, 2.5, 5 or 10 mg/day, and received the treatment for 8 weeks. The results demonstrated that more potent antihypertensive effects lasted for 24 hours in the telmisartan 80 mg/day in combination with amlodipine 5 mg/day group3 than in telmisartan 80 mg/day group.
In all Japanese clinical studies, 869 patients received telmisartan/amlodipine 40 mg/5 mg or 80 mg/5 mg, and adverse drug reactions including abnormal laboratory values occurred in 3.0% (26/869) of them. Main adverse drug reactions included dizziness (0.5%, 4/869) and dizziness postural (0.3%, 3/869)4.
With the existing telmisartan drugs, “Micardis® Tablets 20 mg/40 mg/80 mg,” “Micombi® Combination Tablets AP/BP,” a combination drugs of telmisartan and hydrochlorothiazide (HCTZ) diuretic of the thiazide class, and “Micamlo® Combination Tablets AP,” a combination drug of telmisartan and long-acting CCB amlodipine, “Micamlo® Combination Tablets BP”, obtained approval for manufacturing and marketing today, constitutes the Micardis® family.
As in the previous cases for the telmisartan drugs, “Micamlo® Combination Tablets BP” will be manufactured by NBI, distributed by Astellas, and co-promoted by the two companies. They remain committed to continuously maximising the value of Micardis® family products and further contributing to hypertension treatment.
