Mitoxantrone Liposome Combination Therapy for AML Relapse Control

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Solution Overview

Problem

Current treatments for acute myeloid leukemia (AML) primarily rely on chemotherapy, with limited efficacy and high relapse rates, and there is a need for more effective therapeutic options.

Innovation Solution

The use of mitoxantrone liposome combined with cytarabine, or further combined with drugs like homoharringtonine or venetoclax, to enhance therapeutic effects in treating AML.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional chemotherapy regimens (cytarabine combined with anthracyclines) are used for AML treatment, then induction therapy can achieve complete remission in 60-80% of patients, but most patients will relapse after entering remission and only about less than 50% can achieve a second remission

Engineering Contradiction:
Improveremission maintenance rateVSAvoidrelapse rate
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent uses liposomal formulation to create a composite drug delivery system that combines mitoxantrone with lipid bilayer structures. This composite approach allows for controlled release and sustained therapeutic levels, addressing the relapse problem by maintaining effective drug concentrations over time rather than single-dose chemotherapy

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent segments the treatment approach by using liposomal encapsulation to divide drug delivery into controlled releases. The liposome structure breaks down gradually, releasing mitoxantrone in a sustained manner, which prevents early relapse by maintaining therapeutic pressure on leukemia cells throughout the treatment cycle

Inventive Principle:
Principle #1Segmentation

2Reliability

If mitoxantrone liposome is used to improve therapeutic effect and reduce relapse, then the treatment complexity and manufacturing difficulty increase compared to conventional chemotherapy

Engineering Contradiction:
Improvetherapeutic efficacyVSAvoidformulation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The liposome acts as an intermediary carrier that simplifies the delivery of mitoxantrone. Rather than administering raw chemotherapy agents, the liposomal formulation serves as a mediator that controls drug release, protects the drug, and targets delivery, thereby improving efficacy while managing complexity through a single integrated delivery system

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4721734A1Use of pharmaceutical composition comprising mitoxantrone liposome and cytarabine in the treatment of acute myeloid leukemia
Publication Date: 2026.04.08 CSPC ZHONGQI PHARMACEUTICAL TECHNOLOGY (SHIJIAZHUANG) CO LTD
  • EP4721734A1 patent drawing
  • EP4721734A1 patent drawing
  • EP4721734A1 patent drawing

AI summary

The use of mitoxantrone liposome combined with cytarabine, or further combined with other drugs, such as homoharringtonine or venetoclax, in the preparation of drugs used for treating acute myeloid leukemia (AML). Provided is a method of treating AML, the method comprising administering to an AML patient a pharmaceutical composition comprising mitoxantrone liposome and cytarabine, wherein the pharmaceutical composition may also comprise homoharringtonine or venetoclax.