Otsuka and Astex announce that the European Commission has approved INAQOVI® (oral decitabine and cedazuridine) for the treatment of adults with newly diagnosed acute myeloid leukaemia

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Otsuka Pharmaceutical Europe Ltd. (Otsuka) and Astex Pharmaceuticals, Inc. (Astex) today announce that the European Commission (EC) has approved INAQOVI® (oral decitabine and cedazuridine) as monotherapy for the treatment of adult patients with newly diagnosed acute myeloid leukaemia (AML) who are ineligible for standard induction chemotherapy.

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Tuesday, September 19, 2023
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Biotechnology, Health, Pharmaceutical, Clinical Trials, Oncology, EEA, IV, Civil service commission, Acute leukemia, Fatigue, Astex Pharmaceuticals, European Medicines Agency, Clinical trial, Multimedia, EMA, Induction chemotherapy, AML, Patient, European Economic Area, Physician, EC, European Commission, Nursing, Vaccine, Decitabine, EU
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UNITED STATES, UNITED KINGDOM, JAPAN, NORTH AMERICA, ASIA PACIFIC, EUROPE, CALIFORNIA, ICELAND, ŌTSUKA, LIECHTENSTEIN, NORWAY
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ASTEX PHARMACEUTICALS, ASTEX PHARMACEUTICALS, INC., DECITABINE AND CEDAZURIDINE FIXED-DOSE COMBINATION, ACUTE MYELOID LEUKAEMIA, OTSUKA, ASTEX
Summary
Key Points: 
  • Otsuka Pharmaceutical Europe Ltd. (Otsuka) and Astex Pharmaceuticals, Inc. (Astex) today announce that the European Commission (EC) has approved INAQOVI® (oral decitabine and cedazuridine) as monotherapy for the treatment of adult patients with newly diagnosed acute myeloid leukaemia (AML) who are ineligible for standard induction chemotherapy.
  • The EC decision applies to the European Economic Area (EEA), which includes the EU member states, Iceland, Liechtenstein and Norway.
  • INAQOVI® is the first and only oral hypomethylating agent licensed in the EEA in this patient population.
  • Safety findings for the fixed-dose combination of decitabine and cedazuridine were generally consistent with those anticipated for IV decitabine1.


Otsuka Pharmaceutical Europe Ltd. (Otsuka) and Astex Pharmaceuticals, Inc. (Astex) today announce that the European Commission (EC) has approved INAQOVI® (oral decitabine and cedazuridine) as monotherapy for the treatment of adult patients with newly diagnosed acute myeloid leukaemia (AML) who are ineligible for standard induction chemotherapy. The EC decision applies to the European Economic Area (EEA), which includes the EU member states, Iceland, Liechtenstein and Norway. INAQOVI® is the first and only oral hypomethylating agent licensed in the EEA in this patient population.

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The EC approval is based on the results from the Phase 3 ASCERTAIN clinical trial investigating the pharmacokinetic exposure equivalence of the novel oral fixed-dose combination versus intravenous (IV) decitabine in AML patients1. The ASCERTAIN study met its primary endpoint, with the orally administered decitabine and cedazuridine fixed-dose combination showing pharmacokinetic exposure equivalence to a standard 5-day regimen of IV decitabine using a two-cycle, cross-over study design. Safety findings for the fixed-dose combination of decitabine and cedazuridine were generally consistent with those anticipated for IV decitabine1.

The current treatment options for adults with AML range from hospital-administered IV chemotherapy infusions or, for those patients not eligible for chemotherapy, regimens based on parenterally administered hypomethylating agents, with treatment cycles typically extending for 5-7 days2. Fatigue can significantly restrict daily activities and impact a patient’s quality of life3. INAQOVI® may provide both patients and physicians with an oral treatment option in this patient population.

On 10th June 2022, the European Medicines Agency (EMA) agreed to a Paediatric Investigation Plan for the oral decitabine and cedazuridine fixed-dose combination, representing an important milestone for the prospect of furthering clinical studies in children with AML.

About decitabine and cedazuridine fixed-dose combination (INAQOVI®)

INAQOVI® is an orally administered, fixed-dose combination of the approved hypomethylating agent (HMA), decitabine (35 mg), together with cedazuridine(100 mg), an inhibitor of cytidine deaminase4-6. By inhibiting cytidine deaminase in the gut and liver, the fixed-dose combination is designed to allow for oral daily administration of decitabine over 5 days in a given cycle to achieve comparable systemic exposure to IV decitabine administered with the same dosing regimen7.

In the Phase 3 ASCERTAIN study, a total of 89 AML patients were randomised 1:1 to receive INAQOVI® (35 mg decitabine and 100 mg cedazuridine) orally in Cycle 1 and decitabine (20 mg/m2) intravenously in Cycle 2 (n=44) or the reverse sequence (n=45). Both INAQOVI® and IV decitabine were administered once daily on Days 1 through 5 of the 28-day cycle. Starting with Cycle 3, all patients received INAQOVI® orally once daily on Days 1 through 5 of each 28-day cycle until disease progression, death, or unacceptable toxicity6.

Primary endpoint results showed that patients receiving INAQOVI® achieved pharmacokinetic exposure equivalence of 99.64% (90% CI: 91.23, 108.8) to IV decitabine given at 20 mg/m2 for 5-days with a similar pharmacodynamic activity. Secondary findings showed a Median Overall Survival of 7.9 months (95% CI: 5.9, 13.0) and a Complete Response rate of 21.8% at 7.95 months median follow up1.

The most common adverse drug reaction (≥ 20%) was thrombocytopenia. The most common serious adverse reactions (≥ 20%) were febrile neutropenia and pneumonia. Permanent discontinuation occurred in 14% of patients while on treatment. The most frequent adverse reaction resulting in permanent discontinuation was pneumonia (5%)6.

About acute myeloid leukaemia (AML)

AML is the most common form of acute leukaemia in adults8. The median age at diagnosis is approximately 70 years2. Within Europe, the incidence of AML is increasing, this may be attributed to the ageing population; AML incidence in Europe has risen from 3.48 in 1976 to 5.06 patients per 100,000 population in 20132. Across Europe and all age groups, AML is notably more common in males than in females2. The outlook for patients diagnosed with AML has improved over time due to improved care and treatment, however between the years of 2000 and 2007, 5-year survival for patients was just 17%2.

About Otsuka

Otsuka Pharmaceutical is a global healthcare company with the corporate philosophy “Otsuka-people creating new products for better health worldwide”. Otsuka researches, develops, manufactures, and markets innovative products, focusing on pharmaceutical products to meet unmet medical needs and nutraceutical products for the maintenance of everyday health. In pharmaceuticals, Otsuka is a leader in the challenging area of mental health and has research programmes in several under-addressed diseases including tuberculosis, a significant global public health issue.

Otsuka Europe employs around 550 people and focuses on psychiatric and neurologic disorders, infectious disease, nephrology, oncology, and digital medicines. Otsuka Pharmaceutical Europe Ltd. is a part of Otsuka Pharmaceutical Company, Ltd., a subsidiary of Otsuka Holdings Co., Ltd. headquartered in Tokyo, Japan.

The Otsuka group of companies employed 47,000 people worldwide with consolidated sales of approximately €12.4 billion and a spend of €1.67 billion on research and development in 2022. For further information on Otsuka, please visit www.otsuka-europe.com.

About Astex

Astex Pharmaceuticals, Inc. is committed to the fight against cancer. Astex is developing a proprietary pipeline of novel therapies for the treatment of solid tumours and haematological malignancies. Astex is a member of the Otsuka group of companies. The group also includes Otsuka Pharmaceutical Co., Ltd., Taiho Pharmaceutical Co., Ltd., and Taiho Oncology, Inc. Subject to regulatory approvals, Astex’s products will be commercialised in the U.S. and Canada by Taiho subsidiaries, and in the rest of the world by Otsuka subsidiaries.

Otsuka, the Otsuka logo, Astex, the Astex logo, and INAQOVI are registered trademarks of Otsuka Holdings Co., Ltd. or its subsidiaries.

References

  1. Geissler K, Koristek Z, Bernal del Castillo T, et al. Pharmacokinetic exposure equivalence and preliminary efficacy and safety from a randomized crossover Phase 3 study of an oral hypomethylating agent, ASTX727 (DEC-C), compared to IV decitabine in AML patients. Poster presented at the European Hematology Association Congress; 9–12 June 2022; Vienna, Austria. Abstract P573.
  2. Heuser M, Ofran Y, Boissel N, et al. Acute myeloid leukaemia in adult patients: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol. 2020;31(6):697–712.
  3. No authors listed. Benefits of AML Maintenance Therapy Extend to Quality of Life and Hospitalization. Oncologist. 2021;26 (Suppl 1):S11–S12.
  4. Oganesian A, Redkar S, Taverna P, et al. Preclinical Data in Cynomolgus Monkeys of ASTX727, a novel oral hypomethylating agent (HMA) composed of low-dose oral decitabine combined with a novel Cytidine Deaminase Inhibitor (CDAi) E7727. Poster presented at the American Society of Hematology Annual Meeting; 7–10 December 2013; New Orleans, LA. Abstract 2526.
  5. Ferraris D, Duvall B, Delahanty G, et al. Design, synthesis, and pharmacological evaluation of fluorinated tetrahydrouridine derivatives as inhibitors of cytidine deaminase. J Med Chem. 2014;57(6):2582–2588.
  6. INAQOVI Summary of Product Characteristics (Europe), September 2023.
  7. INQOVI Product Monograph (Canada), March 2022.
  8. De Kouchkovsky I, Abdul-Hay M. ‘Acute myeloid leukemia: a comprehensive review and 2016 update’. Blood Cancer J. 2016;6(7):e441.

 

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