UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060501
Receipt number R000069216
Scientific Title Study on the inter-individual variability of venetoclax blood concentrations and its association with efficacy and safety
Date of disclosure of the study information 2026/01/28
Last modified on 2026/01/28 17:36:46

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Basic information

Public title

Study on the inter-individual variability of venetoclax blood concentrations and its association with efficacy and safety

Acronym

Study on venetoclax blood concentration, efficacy, and safety

Scientific Title

Study on the inter-individual variability of venetoclax blood concentrations and its association with efficacy and safety

Scientific Title:Acronym

Study on venetoclax blood concentration, efficacy, and safety

Region

Japan


Condition

Condition

Acute Myeloid Leukemia

Classification by specialty

Hematology and clinical oncology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

The primary objective of this study is to identify factors contributing to the inter-individual variability of venetoclax trough levels in patients with acute myeloid leukemia (AML). Specifically, we aim to analyze the impact of concomitant medications (such as CYP3A-inhibiting antifungal agents), hepatic and renal function, and patient-specific background factors on venetoclax exposure. The study evaluates the association between trough levels and hematologic toxicities (safety) as well as treatment response rates (efficacy). Through these analyses, we aim to establish evidence-based indices for personalized dosing to optimize efficacy while minimizing the risk of adverse events in actual clinical practice.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

The correlation between venetoclax trough levels and the incidence of hematologic toxicities during the first three treatment cycles

Key secondary outcomes

Identification of factors contributing to the inter-individual variability of venetoclax trough levels.
Correlation between venetoclax trough levels and treatment response rates.
Association between venetoclax trough levels and overall survival (OS).
Correlation between venetoclax trough levels and the incidence of non-hematologic adverse events of Grade >=3.
Correlation between the area under the concentration-time curve (AUC) and trough levels of venetoclax.


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Patients who are receiving or have received venetoclax.
Patients diagnosed with acute myeloid leukemia.
Patients aged 18 years or older at the time of enrollment.
Patients who have received a sufficient explanation regarding the study and provided written informed consent from themselves or their legal representative.

Key exclusion criteria

Patients with poor medication adherence
Patients receiving venetoclax monotherapy or combination therapy with agents other than azacitidine
Patients whose venetoclax dose was not adjusted appropriately according to concomitant medications, such as CYP3A inhibitors.

Target sample size

100


Research contact person

Name of lead principal investigator

1st name JUNYA
Middle name
Last name KANDA

Organization

Graduate School of Medicine, Kyoto University

Division name

Department of Hematology

Zip code

606-8507

Address

54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto

TEL

0757513152

Email

jkanda16@kuhp.kyoto-u.ac.jp


Public contact

Name of contact person

1st name JUNYA
Middle name
Last name KANDA

Organization

Graduate School of Medicine, Kyoto University

Division name

Department of Hematology

Zip code

606-8507

Address

4 Kawaharacho, Shogoin, Sakyo-ku, Kyoto

TEL

0757513152

Homepage URL


Email

jkanda16@kuhp.kyoto-u.ac.jp


Sponsor or person

Institute

Kyoto University

Institute

Department

Personal name



Funding Source

Organization

Kyoto University

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto University Graduate School and Faculty of Medicine, Ethics Committee

Address

53 Kawaharacho, Shogoin, Sakyo-ku, Kyoto

Tel

075-366-7618

Email

ethcom@kuhp.kyoto-u.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 01 Month 28 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Enrolling by invitation

Date of protocol fixation

2021 Year 05 Month 17 Day

Date of IRB

2021 Year 05 Month 17 Day

Anticipated trial start date

2021 Year 05 Month 17 Day

Last follow-up date

2025 Year 06 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

This study is a prospective observational (cohort) study of patients receiving venetoclax as part of routine clinical practice. There are no therapeutic interventions or modifications to the standard clinical care or testing schedules for the purposes of this research. The primary focus is to evaluate the correlation between measured venetoclax trough levels and clinical safety and efficacy data.


Management information

Registered date

2026 Year 01 Month 28 Day

Last modified on

2026 Year 01 Month 28 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000069216