Clinical trial • Phase I/II • Oncology

HDP-101 for Relapsed or refractory multiple myeloma

Phase I/II trial of HDP-101 for Relapsed or refractory multiple myeloma. None/Not specified-controlled, adaptive. 61 participants.

Overview

Trial Therapeutic Area
Oncology
Trial Disease
Relapsed or refractory multiple myeloma
Trial Stage
Phase I/II
Drug Modality
Peptide/protein/enzyme

Key dates

Initial CTIS Submission Date
31-07-2024
First CTIS Authorization Date
23-08-2024

Trial design

None/Not specified-controlled, adaptive Phase I/II trial across 23 sites in Germany, Poland, Spain and others.

Comparator
None/Not specified
Adaptive
True, dose-escalation adaptive elements: determine maximum tolerated dose (MTD) and/or select recommended Phase 2 dose (RP2D); use dose-limiting toxicity (DLT) assessment during first treatment cycle to guide escalation decisions.
Single Multiple Or Escalation Dose Combined
Yes
Target Sample Size
61

Eligibility

Recruits 61 Vulnerable population selected. The trial excludes participants with legal incapacity/limited legal capacity for providing informed consent (see exclusion: "Legal incapacity/limited legal capacity for providing informed consent"). Participants must sign informed consent; minimum age is ≥18 years so no assent procedures for minors are specified..

Pregnancy Exclusion
Pregnancy or breast feeding.
Vulnerable Population
Vulnerable population selected. The trial excludes participants with legal incapacity/limited legal capacity for providing informed consent (see exclusion: "Legal incapacity/limited legal capacity for providing informed consent"). Participants must sign informed consent; minimum age is ≥18 years so no assent procedures for minors are specified.

Inclusion criteria

  • {"criterion_text":"-Patients who have signed an informed consent and are willing to comply with the requirements and restrictions listed in the study protocol."}
  • {"criterion_text":"-Adequate organ system function as defined: •Absolute neutrophil counta: ≥1.0 × 10^9/L •Platelet count: ≥75 × 10^9/L and absent platelet transfusion for ≥7 days •Hemoglobin: >8.0 g/dL and absent RBC transfusion for ≥7 days •Activated partial thromboplastin time/partial thromboplastin time: ≤1.5 × ULN •Measured CrCl (using 24-hour urine), if a measured CrCl is not available, the calculated creatinine clearance using the Cockcroft-GaultFormula can be used: ≥60 mL/min •Albuminuria: ≤500 mg/24 hours •Total serum bilirubin: ≤1.5 × ULN (isolated bilirubin >1.5 and ≤3.0 × ULN is acceptable if bilirubin is fractionated and direct bilirubin <35%) •Aspartate and alanine transaminases: ≤1.5 × ULN"}
  • {"criterion_text":"-A female patient is eligible to participate if she is of •Nonchildbearing potential defined as premenopausal females with a documented tubal ligation or hysterectomy; or postmenopausal defined as 12 months of spontaneous amenorrhea (in questionable cases a blood sample with simultaneous follicle-stimulating hormone >40 MIU/mL and estradiol <40 pg/mL [<147 pmol/L] is confirmatory). Women on hormone replacement therapy and whose menopausal status is in doubt are treated like women of childbearing potential unless they discontinue their HRT to allow confirmation of postmenopausal status prior to study enrollment. For most forms of HRT, at least 2 to 4 weeks will elapse between the cessation of therapy and the blood draw; this interval depends on the type and dosage of HRT. Following confirmation of their postmenopausal status, they can resume use of HRT during the study without use of a contraceptive method. •Women of childbearing potential must have a negative urine pregnancy test 7 days before the first administration of the study treatment and on Day 1 before first dose of study treatment and commit to either abstain continuously from heterosexual intercourse or to use 2 methods of reliable birth control simultaneously, during the study and for 4 months following the last dose of the study treatment. This includes 1 highly effective form of contraception (tubal ligation, intrauterine device, hormonal [birth control pills, injections, hormonal patches, vaginal rings, or implants] or partner's vasectomy) and 1 additional effective contraceptive method (male latex or synthetic condom, diaphragm, or cervical cap)."}
  • {"criterion_text":"-Male patients must have had a prior vasectomy or commit to use an effective contraception (complete abstinence from sexual intercourse, latex or synthetic condom and during sexual intercourse with a female a double-barrier method including a condom and occlusive cap [diaphragm or cervical/vault caps] plus spermicidal agent [foam/gel/film/cream/suppository]) from the time of first study treatment infusion until 3 months following the last study treatment infusion to allow for clearance of any altered sperm."}
  • {"criterion_text":"-Male or female aged ≥18 yrs at the time of informed consent."}
  • {"criterion_text":"-Life expectancy >12 weeks, as determined by the Investigator."}
  • {"criterion_text":"-ECOG Performance Status (PS) of 0 to 2 (tumor related performance)."}
  • {"criterion_text":"-A confirmed diagnosis of active MM according to the diagnostic criteria established by the International Myeloma Working Group (IMWG)."}
  • {"criterion_text":"-Must have undergone SCT or is considered transplant ineligible."}
  • {"criterion_text":"-Must have undergone prior treatments with antimyeloma therapy which must have included an immunomodulatory drug, proteasome inhibitor, and antiCD38 treatment, alone or in combination. Patients who are intolerant to these therapies or have contraindications are eligible if other eligibility criteria are fulfilled. Patient must have failed last line of treatment (refractory to or relapsed after last line of treatment) or had to permanently discontinue the last line of therapy due to toxicity (toxicity and reason for permanent discontinuation has to be documented in the electronic case report form [eCRF]). 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."}
  • {"criterion_text":"-a) Phase 1 part only: patients with non-secretory or oligo-secretory myeloma (NSMM) not meeting the measurability criteria described in 8.b) are eligible (all other eligibility criteria must apply). b) Phase 2a part only - Measurable disease defined as: •Serum M-protein ≥0.5 g/dL, or •Urine M-protein ≥200 mg/24 hours, or •Serum-free light chains (FLC) assay: involved FLC level ≥10 mg/dL (100 mg/L) provided serum FLC ratio is abnormal (<0.26 or >1.65)."}
  • {"criterion_text":"-Acute toxicities from any prior therapy, surgery, or radiotherapy must have resolved to Grade 0 or 1 as per the NCI-CTCAE version 5.0, except for alopecia and Grade 2 neuropathy."}

Exclusion criteria

  • {"criterion_text":"-For patient entering the Phase 2a part only: Prior treatment with any approved or experimental BCMA-targeting modalities are not allowed including but not limited to chimeric antigen receptor T or NK cell treatment, mono or bispecific antibodies and other BCMA-ADCs. (Note that patients in the Phase 1 part could have had any prior BCMA directed treatment providing they fulfilled all other I/E criteria)."}
  • {"criterion_text":"-Symptomatic graft versus host disease post allogenic hemopoietic cell transplant within 12 months prior to the first study treatment infusion."}
  • {"criterion_text":"-Significant surgical intervention within 21 days prior to the first study treatment infusion or ongoing post-operative complications."}
  • {"criterion_text":"-Patients who have a history of being nonresponsive to platelet and/or RBC transfusions and expected lack of adequate support with blood products on demand."}
  • {"criterion_text":"-Radiotherapy within 21 days prior to the first study treatment infusion, or localized palliative radiotherapy within 7 days prior to the first study treatment infusion, therapy with radio immuno-conjugates performed less than 3 months prior to the first dose of study treatment."}
  • {"criterion_text":"-Herbal remedies interfering or stimulating the metabolic pathways (eg, mistletoe extract) or known to potentially interfere with major organ function (eg, hypericin) within 21 days prior to the first study treatment infusion."}
  • {"criterion_text":"-History of any other malignancy known to be active, with the exception of completely removed in situ cervical intraepithelial neoplasia, nonmelanoma skin cancer, ductal carcinoma in situ, early stage prostate cancer that has been adequately treated. Malignancies which are adequately treated and requiring hormonal therapies only to prevent the recurrence of the malignancy other than multiple myeloma may be permitted after discussion with and agreement of the Sponsor's Medical Monitor (eg, breast cancer treated with hormonal therapies)."}
  • {"criterion_text":"-For sites in Germany: HIV infection at the time of the screening. For all other sites: Known human immunodeficiency virus infection."}
  • {"criterion_text":"-Patients with active infection requiring systemic anti-infective (eg, antibiotic or antiviral) therapy. Patients who are successfully treated with systemic anti-infective treatment and have no clinical signs of infection for at least 2 days may be enrolled as per the discretion of the Investigator."}
  • {"criterion_text":"-Patients positive for hepatitis B surface antigen or Hepatitis B core antigen."}
  • {"criterion_text":"-Patients positive for hepatitis C virus (HCV) infection are excluded regardless of viral load. If the hepatitis C antibody test is positive, a confirmatory PCR or recombinant immunoblot assay (RIBA) test should be performed. If the RIBA test is negative, patient is eligible for study."}
  • {"criterion_text":"-History of allergic reactions to any component of the study treatment."}
  • {"criterion_text":"-Current active liver or biliary disease (with the exception of Gilbert's syndrome or asymptomatic gallstones), liver metastases, or other stable chronic liver disease per the Investigator's assessment."}
  • {"criterion_text":"-Pregnancy or breast feeding."}
  • {"criterion_text":"-Refusal to use effective methods of contraception."}
  • {"criterion_text":"-Legal incapacity/limited legal capacity for providing informed consent."}
  • {"criterion_text":"-Any serious and/or unstable preexisting medical, psychiatric disorder, or other conditions (including lab abnormalities) that could interfere with patient's safety, obtaining informed consent, or compliance to the study procedures."}
  • {"criterion_text":"-Pneumonia or symptomatic pneumonitis (symptoms include but not limited to shortness of breath, wheezing, dyspnea, decrease oxygen saturation)."}
  • {"criterion_text":"-Known central nervous system involvement."}
  • {"criterion_text":"-Plasma cell leukemia (total plasma cell count of at least 2 × 10^9/L) at Screening."}
  • {"criterion_text":"-History of congestive heart failure classified as Class ≥ III based on the NYHA Classification or Grade 3/4 unstable angina pectoris within 6 months of enrollment, presence of unstable atrial fibrillation, electrocardiogram (ECG) with QTc ≥480 ms, cardiac arrhythmia, or uncontrolled hypertension."}
  • {"criterion_text":"-Treatment with systemic anticancer therapy within 4 weeks or 5 t½s of the agent if t½ is known (whichever is shorter) before first dose of the study treatment. Anticancer therapies include cytotoxic chemotherapy, targeted inhibitors, and immunotherapies, but do not include radiotherapy or corticosteroids"}
  • {"criterion_text":"-Higher dose of systemic corticosteroids, defined as oral dexamethasone >40 mg/day (for patients aged >75 years reduced to >20 mg/day) or equivalent, within 3 days prior to the first study treatment infusion."}
  • {"criterion_text":"-Currently participating in a study and receiving study therapy or participated in a study of an investigational agent and received study therapy or used an investigational device within 2 weeks of the first dose of study treatment."}
  • {"criterion_text":"-Autologous or allogenic SCT within 12 weeks before the first infusion or is planning for autologous SCT."}

Endpoints

Primary endpoints

  • {"endpoint_text":"-Phase 1: Number of patients who experience a dose-limiting toxicity (DLT) during the first cycle of treatment. Phase 2a: Objective response rate (ORR).","definition_or_measurement_approach":"Phase 1: Number of patients who experience a dose-limiting toxicity (DLT) during the first cycle of treatment (DLT assessment during first cycle). Phase 2a: Objective response rate (ORR) measured as objective tumor response (ORR)."}

Recruitment

Planned Sample Size
61
Recruitment Window Months
51
Consent Approach
Participants must sign informed consent prior to participation. Minimum enrolment age is ≥18 years, so consent is provided by the participant; no assent for minors is described. Subject information and informed consent forms (ICFs) were submitted in multiple language versions (including German, Polish, Hungarian, Spanish and English based on submitted document titles), indicating availability of materials in those languages.

Geography

Total Number Of Sites
23
Total Number Of Participants
99

Germany

Earliest CTIS Part Ii Submission Date
09-08-2024
Latest Decision Or Authorization Date
09-12-2025
Processing Time Days
487
Number Of Sites
5
Number Of Participants
40

Sites

Site Name
Universitaetsklinikum Heidelberg AöR
Department Name
Hematology
Contact Person Name
Marc-Steffen Raab
Site Name
Universitaetsklinikum Schleswig-Holstein AöR
Department Name
Hematology
Contact Person Name
Natalie Schub
Contact Person Email
natalie.schub@uksh.de
Site Name
Asklepios Kliniken Hamburg GmbH
Department Name
Hematology
Contact Person Name
Hans Salwender
Contact Person Email
h.salwender@asklepios.com
Site Name
Universitaetsklinikum Schleswig-Holstein AöR (Luebeck)
Department Name
Hematology
Contact Person Name
Niklas Gebauer
Contact Person Email
niklas.gebauer@uksh.de
Site Name
Klinikum Chemnitz gGmbH
Department Name
Hematology
Contact Person Name
Mathias Haenel
Contact Person Email
m.haenel@skc.de

Poland

Earliest CTIS Part Ii Submission Date
09-08-2024
Latest Decision Or Authorization Date
27-01-2026
Processing Time Days
536
Number Of Sites
7
Number Of Participants
34

Sites

Site Name
Pratia Hematologia Sp. z o.o.
Department Name
Pratia Onkologia Katowice
Contact Person Name
Sebastian Grosicki
Contact Person Email
sgrosicki@wp.pl
Site Name
Aidport Sp. z o.o.
Contact Person Name
Michał Kwiatek
Contact Person Email
michal.kwiatek@aidport.pl
Site Name
Medicover Integrated Clinical Services Sp. z o.o.
Department Name
MICS Centrum Medyczne Toruń
Contact Person Name
Dominik Chraniuk
Contact Person Email
d.chraniuk@naszlekarz.pl
Site Name
Wojewodzkie Wielospecjalistyczne Centrum Onkologii I Traumatologii Im M.Kopernika W Lodzi
Department Name
Oddział Hematologii Ogólnej i Chorób Wewnętrznych
Contact Person Name
Tadeusz Robak
Contact Person Email
robaktad@csk.umed.lodz.pl
Site Name
Pratia S.A.
Department Name
Pratia MCM Kraków
Contact Person Name
Wojciech Jurczak
Contact Person Email
wojciech.jurczak@pratia.com
Site Name
Szpital Wojewodzki W Opolu Sp. z o.o.
Department Name
Oddział Kliniczny Hematologii, Onkologii Hematologicznej i Chorób Wewnętrznych
Contact Person Name
Dariusz Woszczyk
Contact Person Email
dariusz.s.woszczyk@gmail.com
Site Name
Szpital Uniwersytecki Nr 2 Im Dr Jana Biziela W Bydgoszczy
Department Name
Klinika Hematologii
Contact Person Name
Marta Sobas
Contact Person Email
marta.sobas@gmail.com

Spain

Earliest CTIS Part Ii Submission Date
05-02-2026
Latest Decision Or Authorization Date
14-05-2026
Processing Time Days
98
Number Of Sites
7
Number Of Participants
10

Sites

Site Name
Hospital Moncloa Grupo Hla S.A.
Department Name
Hematología
Contact Person Name
María de la Concepción Aláez Usón
Contact Person Email
concha.alaez@gmail.com
Site Name
University Hospital Son Espases
Department Name
Hematología y Hemoterapia
Contact Person Name
Antonia Sampol Mayol
Contact Person Email
antonia.sampolm@ssib.es
Site Name
Hospital General Universitario Morales Meseguer
Department Name
Hematología
Contact Person Name
Felipe De Arriba De la Fuente
Contact Person Email
farriba@um.es
Site Name
University Hospital Virgen Del Rocio S.L.
Department Name
UGC Hematología
Contact Person Name
Estrella Carrillo Cruz
Contact Person Email
estrellacarrillocruz@gmail.com
Site Name
Hospital Universitario De La Princesa
Department Name
Hematología
Contact Person Name
Adrián Alegre Amor
Contact Person Email
adrian.alegre@salud.madrid.org
Site Name
Hospital Clinic De Barcelona
Department Name
Hematología
Contact Person Name
Laura Rosiñol Dachs
Contact Person Email
lrosinol@clinic.cat
Site Name
University Hospital Son Espases (additional site entry)
Department Name
Hematología

Hungary

Earliest CTIS Part Ii Submission Date
09-08-2024
Latest Decision Or Authorization Date
18-03-2026
Processing Time Days
586
Number Of Sites
4
Number Of Participants
15

Sites

Site Name
Orszagos Onkologiai Intezet
Department Name
Urogenitális Tumorok és Klinikai Farmakológiai Osztály
Contact Person Name
Lajos Géczi
Contact Person Email
geczi.lajos@oncol.hu
Site Name
Semmelweis University (Belgyógyászati és Onkológiai Klinika, Klinikai Farmakológiai Részleg)
Department Name
Belgyógyászati és Onkológiai Klinika, Klinikai Farmakológiai Részleg
Contact Person Name
István Takács
Contact Person Email
takacs.istvan@semmelweis.hu
Site Name
Semmelweis University (Belgyógyászati és Hematológiai Klinika)
Department Name
Belgyógyászati és Hematológiai Klinika
Contact Person Name
Gergely Varga
Contact Person Email
vargager@gmail.com
Site Name
University Of Pecs
Department Name
Klinikai Kozpont, I. sz. Belgyogyaszati Klinika
Contact Person Name
Szabolcs Kosztolanyi
Contact Person Email
kosztolanyi.szabolcs@pte.hu

Sponsor

Primary sponsor

Full Name
Heidelberg Pharma AG
Organisation Type
Pharmaceutical company
Country Of Registered Address
Germany

Contract research organisations

Name
IQVIA Limited
Responsibilities
Multiple sponsor duties (codes: 1,10,11,12,13,2,5,6,7) as listed in CTIS third-party entries

Third parties

  • {"country":"Germany","full_name":"Cogitars GmbH","duties_or_roles":"","organisation_type":"Pharmaceutical company"}
  • {"country":"Germany","full_name":"Universitaetsklinikum Heidelberg AöR","duties_or_roles":"","organisation_type":"Hospital/Clinic/Other health care facility"}
  • {"country":"United Kingdom","full_name":"IQVIA Limited","duties_or_roles":"","organisation_type":"Pharmaceutical company"}
  • {"country":"Belgium","full_name":"Cerba Research","duties_or_roles":"","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United States","full_name":"Oracle America Inc.","duties_or_roles":"Data Center Hosting","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Xerimis Inc.","duties_or_roles":"","organisation_type":"Pharmaceutical company"}
  • {"country":"Germany","full_name":"PharmaLex GmbH","duties_or_roles":"","organisation_type":"Pharmaceutical company"}
  • {"country":"Germany","full_name":"Saarmetrics GmbH","duties_or_roles":"PK / PD analysis and modeling","organisation_type":"Pharmaceutical company"}
  • {"country":"Germany","full_name":"spm²-safety projects & more GmbH","duties_or_roles":"","organisation_type":"Pharmaceutical company"}
  • {"country":"France","full_name":"Quipment","duties_or_roles":"Site Supplies and Equipment","organisation_type":"Non-Pharmaceutical company"}
  • {"country":"Germany","full_name":"Trilogy Writing & Consulting GmbH","duties_or_roles":"","organisation_type":"Pharmaceutical company"}
  • {"country":"Netherlands","full_name":"QPS Netherlands B.V.","duties_or_roles":"","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Ancillare LP","duties_or_roles":"Ancillaries Management","organisation_type":"Pharmaceutical company"}

Investigational products

Investigational Product Name
HDP-101
Active Substance
HDP-101
Modality
Peptide/protein/enzyme
Routes Of Administration
INTRAVENOUS USE
Route
Intravenous
First In Human
Yes

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