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Study to Assess Safety and Efficacy of HDP-101 in Chinese Patients With Relapsed or Refractory Multiple Myeloma

A Phase 1 Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of HDP-101 in Chinese Patients With Plasma Cell Disorders Including Multiple Myeloma

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07529782
Enrollment
15
Registered
2026-04-14
Start date
2026-03-17
Completion date
2026-12-31
Last updated
2026-04-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Multiple Myeloma and Other Plasma Cell Neoplasms

Keywords

multiple myeloma, myeloma

Brief summary

This study is a 2-part study with a dose-escalation part and a dose-expansion part. The aim of the dose-escalation part is to determine the maximum tolerated dose (MTD) and/or establish the recommended Phase 2 dose (RP2D) in the Chinese population, in order to select the treatment dose for the dose-expansion part. The dose-escalation part will be followed by the dose-expansion part once the MTD(s) and/or RP2D of HDP-101 monotherapy in the Chinese population have been determined. The dose-expansion part of the study is intended to collect preliminary evidence of antitumor activity and to confirm the safety of the HDP-101 as monotherapy in Chinese patients with r/r MM.

Interventions

HDP-101 is available as lyophilized white powder for preparation of infusion.

Sponsors

Hangzhou Zhongmei Huadong Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY
Heidelberg Pharma AG
CollaboratorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
No minimum to 18 Years
Healthy volunteers
No

Inclusion criteria

* Male or female aged ≥18 years. * Life expectancy \>12 weeks. * Eastern Cooperative Oncology Group Performance Status (PS) of 0 to 2. * A confirmed diagnosis of active MM according to the diagnostic criteria established by the International Myeloma Working Group (IMWG). * Must have undergone SCT or is considered transplant ineligible. * Must have undergone prior treatments with antimyeloma therapy which must have included an immunomodulatory drug, proteasome inhibitor, and anti-CD38 treatment, alone or in combination. In addition, the patient should either refractory or intolerant to any established standard of care therapy providing a meaningful clinical benefit for the patient assessed by the Investigator. * Measurable disease as per IMWG criteria (Dose-escalation part only: patients with non-secretory or oligo-secretory myeloma (NSMM) not meeting the measurability criteria are eligible). * Adequate organ system function as defined in protocol.

Exclusion criteria

* Known central nervous system involvement. * Plasma cell leukemia. * History of congestive heart failure. * Autologous or allogenic SCT within 12 weeks before the first infusion or is planning for autologous SCT. * Symptomatic graft versus host disease post allogenic hemopoietic cell transplant within 12 months prior to the first study treatment infusion. * Radiotherapy within 21 days prior to the first study treatment infusion. * History of any other malignancy known to be active. * Known human immunodeficiency virus infection. * Patients with active infection requiring systemic anti-infective therapy. * Patients with positive hepatitis B virus (HBV) infection or positive hepatitis C virus (HCV) infection. * Current active liver or biliary disease. * Pregnancy or breast feeding. * Pneumonia or symptomatic pneumonitis.

Design outcomes

Primary

MeasureTime frame
Number of patients who experience a dose-limiting toxicity (DLT) during the first cycle of treatment.Up to Day 21 (from first dose)

Secondary

MeasureTime frameDescription
Number of patients with serious and non-serious adverse eventsThrough study completion, an average of 1 yearIncidence and grading of adverse events (AEs) and serious adverse events (SAEs) (based on the National Cancer Institute's Common Terminology Criteria for Adverse Events \[CTCAE\] version 5.0). Incidence of treatment interruption and dose adjustment due to AEs and changes in laboratory tests, vital signs, physical examination and electrocardiogram (ECG).
Objective response rate (ORR)Through study completion, an average of 1 yearProportion of enrolled subjects who achieve a partial response (PR) or better, i.e. stringent complete response (sCR), complete response (CR), very good partial response (VGPR) and PR, according to the IMWG criteria.
Minimal residual disease (MRD) negativity rateThrough study completion, an average of 1 yearProportion of enrolled subjects who achieve minimal residual disease (MRD) free status, according to the IMWG criteria.
Progression-free survival (PFS)Through study completion, an average of 1 yearPFS is defined as the interval from the start of study therapy to the earlier of the first documentation of disease progression/relapse or death from any cause, whichever occurs first as determined by the investigator
Duration of response (DOR)Through study completion, an average of 1 yearDOR is defined as the interval from the first documentation of PR or better until disease progression or death due to any cause, whichever occurs first
Time to objective response (TOR)Through study completion, an average of 1 yearTOR is defined as the interval from the start of study therapy to the first documentation of PR or better
Overall survival (OS)Through study completion, an average of 1 yearOS is defined as the time from randomization to death due to any cause

Countries

China

Contacts

CONTACTJianfei Zhao
zhaojianfei@eastchinapharm.com+8618428347838

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 15, 2026