A Clinical Study of MK-1045 (CN201) in People With Precursor B-cell Acute Lymphoblastic Leukemia (MK-1045-002)

NCT ID: NCT05579132

Last Updated: 2026-01-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

203 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-11-01

Study Completion Date

2027-01-31

Brief Summary

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Researchers are looking for new ways to treat people with a type of blood cancer called precursor B-cell Acute Lymphoblastic Leukemia (B-ALL) that is relapsed- the cancer has come back after treatment, or refractory - the current treatment has stopped working to slow or stop cancer growth. This study will have two parts. In the first part (dose escalation phase) the goal is to learn about the safety of a study treatment, MK-1045, and to find the best dose level of MK-1045 that is tolerated and may work to treat B-ALL. In the second part (Phase II) researchers want to learn how well MK-1045 works to treat B-ALL

Detailed Description

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Conditions

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Acute Lymphoblastic Leukemia

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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MK-1045: Dose Escalation Phase- Adult Cohort

Adults in the dose escalation phase will receive a target dose level of MK-1045 from 600 μg to 90000 μg, administered by intravenous (IV) infusion. MK-1045 will be administered once per week, in treatment cycles defined as 4 weeks of MK-1045 treatment.

Group Type EXPERIMENTAL

MK-1045

Intervention Type DRUG

MK-1045 is administered by IV infusion once a week (QW), 4 weeks per treatment cycle, starting with 2 cycles of induction treatment. After a 2-week treatment-free interval, responders to induction treatment receive 3 cycles of consolidation therapy, and up to 7 cycles of maintenance treatment or until intolerable toxicity, disease progression, withdrawal of informed consent, loss to follow-up, receipt of other antitumor therapy, or death, whichever occurs first. Each 4 week treatment cycle is followed by a 2-week treatment-free interval

MK-1045 : Dose Escalation Phase- Pediatric Cohort

Pediatric participants will receive a target dose level of MK-1045 from 320 μg to 60000 μg, with dosing further based upon weight. MK-1045 will be administered by IV infusion once per week, in treatment cycles defined as 4 weeks of MK-1045 treatment.

Group Type EXPERIMENTAL

MK-1045

Intervention Type DRUG

MK-1045 is administered by IV infusion once a week (QW), 4 weeks per treatment cycle, starting with 2 cycles of induction treatment. After a 2-week treatment-free interval, responders to induction treatment receive 3 cycles of consolidation therapy, and up to 7 cycles of maintenance treatment or until intolerable toxicity, disease progression, withdrawal of informed consent, loss to follow-up, receipt of other antitumor therapy, or death, whichever occurs first. Each 4 week treatment cycle is followed by a 2-week treatment-free interval

Interventions

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MK-1045

MK-1045 is administered by IV infusion once a week (QW), 4 weeks per treatment cycle, starting with 2 cycles of induction treatment. After a 2-week treatment-free interval, responders to induction treatment receive 3 cycles of consolidation therapy, and up to 7 cycles of maintenance treatment or until intolerable toxicity, disease progression, withdrawal of informed consent, loss to follow-up, receipt of other antitumor therapy, or death, whichever occurs first. Each 4 week treatment cycle is followed by a 2-week treatment-free interval

Intervention Type DRUG

Other Intervention Names

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CN201

Eligibility Criteria

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Inclusion Criteria

* Adult participants must be age 18 or older
* Pediatric participants must be at least 2 years old and less than 18 years old.
* Diagnosis of precursor B-cell acute lymphoblastic leukemia (B-ALL) and have more than 5% blasts in the bone marrow by morphological assessment
* Participants with Ph-negative B-ALL with any of the following refractory/relapse criteria:

* Failure to achieve complete remission after initial induction therapy;
* Failure to achieve complete remission after salvage treatment;
* Relapse with first remission duration ≤12 months
* Second or later relapse
* Relapse after allogeneic HSCT
* Participants with Ph-positive B-ALL who have received 2 (or more) tyrosine kinase inhibitors (TKIs) and meet the refractory/relapse criteria above or, those with the T315I mutation

Exclusion Criteria

* History of Burkitt's leukemia.
* Received anti-CD19 therapy within 3 months prior to entering the study
* Received allogeneic HSCT within 12 weeks prior to entering the study
* Received prior treatment with chimeric antigen receptor T cell (CAR-T) within 3 months prior to entering the study
* History or presence of clinically relevant central nervous system (CNS) pathology
* History of clinically symptomatic metastases to the central nervous system or meninges, or other evidence of uncontrolled metastases to the CNS or meninges
* History of immunodeficiency, including history of any positive test result for human immunodeficiency virus (HIV) antibody.
* History of serious cardiovascular and cerebrovascular disease
* Has active autoimmune diseases that may relapse
Minimum Eligible Age

2 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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MSD R&D (China) Co., Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jianxiang Wang, Dr.

Role: PRINCIPAL_INVESTIGATOR

Institute of Hematology & Blood Diseases Hospital, China

Locations

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The Second Affiliated Hospital of Third Military Medical University ( Site 0008)

Chongqing, Chongqing Municipality, China

Site Status RECRUITING

Southern Medical University Nanfang Hospital ( Site 0004)

Guangzhou, Guangdong, China

Site Status RECRUITING

The Second Hospital of Hebei Medical University ( Site 0003)

Shijiazhuang, Hebei, China

Site Status RECRUITING

The First Hospital of Harbin ( Site 0005)

Harbin, Heilongjiang, China

Site Status RECRUITING

Henan Cancer Hospital-hematology department ( Site 0002)

Zhengzhou, Henan, China

Site Status RECRUITING

Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology ( Site 0010)

Wuhan, Hubei, China

Site Status RECRUITING

Tongji Hospital affiliated to Tongji Medical College of HUST ( Site 0006)

Wuhan, Hubei, China

Site Status RECRUITING

The Affiliated Hospital of Xuzhou Medical University ( Site 0007)

Xuzhou, Jiangsu, China

Site Status ACTIVE_NOT_RECRUITING

West China Second University Hospital, Sichuan University ( Site 0011)

Chengdu, Sichuan, China

Site Status COMPLETED

Hematology Hospital of Chinese Academy of Medical Sciences ( Site 0001)

Tianjin, Tianjin Municipality, China

Site Status RECRUITING

The Children's Hospital of Zhejiang University School of Medicine ( Site 0009)

Hangzhou, Zhejiang, China

Site Status COMPLETED

Countries

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China

Central Contacts

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Toll Free Number

Role: CONTACT

1-888-577-8839

Facility Contacts

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Study Coordinator

Role: primary

023-68755313

Study Coordinator

Role: primary

18665730280

Study Coordinator

Role: primary

0311-66002778

Study Coordinator

Role: primary

045184883472

Study Coordinator

Role: primary

400037818

Study Coordinator

Role: primary

02785726114

Study Coordinator

Role: primary

02783662640

Study Coordinator

Role: primary

022 23608030

Related Links

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http://www.merckclinicaltrials.com

Merck Clinical Trials Information

Other Identifiers

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MK-1045-002

Identifier Type: OTHER

Identifier Source: secondary_id

CN201-103

Identifier Type: OTHER

Identifier Source: secondary_id

1045-002

Identifier Type: -

Identifier Source: org_study_id

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