NCT04879043 · Heidelberg Pharma AG
Study to Assess Safety of HDP-101 in Patients With Relapsed Refractory Multiple Myeloma
What this study is about
This study will assess the safety, tolerability, how the drug moves through the body (PK) and the therapeutic potential of HDP-101 in patients with plasma cell disorders including multiple myeloma.
View original scientific description
This study will assess the safety, tolerability, pharmacokinetics (PK) and the therapeutic potential of HDP-101 in patients with plasma cell disorders including multiple myeloma.
Interventions
DRUG
HDP-101
HDP-101 is available as lyophilized white powder for preparation of infusion.
Primary outcome measures
Number of patients who experience dose-limiting toxicity (DLT) during the first cycle of treatment - Part 1 as defined in Clinical Study Protocol
Time frame: Up to Day 21 (from first dose)
Objective response rate (ORR)
Time frame: Through study completion, an average of 1 year
Proportion 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.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
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.
- Adequate organ system function as defined in protocol.
Exclusion criteria
- For patient entering the Phase 2a part only: Prior treatment with any approved or experimental BCMA-targeting modalities are not allowed.
- 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.
- Patients with positive test results for hepatitis B surface antigen or Hepatitis B core antigen.
- Patients with positive test results for hepatitis C virus (HCV) infection.
- Current active liver or biliary disease.
Where
- Atlanta, Georgia
- Louisville, Kentucky
- Omaha, Nebraska
- New York, New York
- Houston, Texas
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Sep 17, 2026 · Source of record for eligibility and locations