Clinical trial • Phase I/II • Haematology

UROKINASE, CATALYTIC DOMAIN, FUSED WITH A SINGLE-CHAIN ANTIBODY AGAINST VON WILLEBRAND FACTOR for Immune-mediated thrombotic thrombocytopenic purpura | Thrombotic microangiopathy

Phase I/II trial of UROKINASE, CATALYTIC DOMAIN, FUSED WITH A SINGLE-CHAIN ANTIBODY AGAINST VON WILLEBRAND FACTOR for Immune-mediated thrombotic thrombocy…

Overview

Trial Therapeutic Area
Haematology
Trial Disease
Immune-mediated thrombotic thrombocytopenic purpura | Thrombotic microangiopathy
Trial Stage
Phase I/II
Drug Modality
Peptide/protein/enzyme
Orphan Drug
Yes

Key dates

Initial CTIS Submission Date
04-11-2025
First CTIS Authorization Date
06-03-2026

Trial design

None/Not specified-controlled, adaptive Phase I/II trial in France, Germany, Italy and others.

Comparator
None/Not specified
Adaptive
True - Adaptive dose escalation and expansion basket design (dose-escalation followed by expansion cohorts). Specific dose-escalation rules or interim analysis/stopping rules not provided in available documents.
Single Multiple Or Escalation Dose Combined
Yes
Target Sample Size
30
Trial Duration For Participant
90

Eligibility

Recruits 30 Vulnerable population selected. Only adults (age ≥18) are eligible and must be willing and able to provide informed consent; specific assent procedures for minors are not described..

Pregnancy Exclusion
Pregnant or breastfeeding
Vulnerable Population
Vulnerable population selected. Only adults (age ≥18) are eligible and must be willing and able to provide informed consent; specific assent procedures for minors are not described.

Inclusion criteria

  • {"criterion_text":"- Adult: age ≥18 at the time of signing the informed consent form (ICF)"}
  • {"criterion_text":"- Willing and able to provide informed consent and sign the ICF"}
  • {"criterion_text":"- Male or female of childbearing potential must refrain from sexual intercourse or must use a contraceptive method that is highly effective (with a failure rate of <1% per year) during the trial and for at least 90 days after the last dose of trial drug"}
  • {"criterion_text":"- Symptomatic acute TMA episode"}
  • {"criterion_text":"- Patient accessible to follow-up"}

Exclusion criteria

  • {"criterion_text":"- Diagnosis other than TMA, which could account for the findings of thrombocytopenia and hemolytic anemia (e.g., disseminated intravascular coagulation [DIC], Evans syndrome)"}
  • {"criterion_text":"- Pre-existing severe medical, neurological, or psychiatric disease that would significantly confound the endpoint evaluations (Investigator judgment)"}
  • {"criterion_text":"- Known hypersensitivity to any of the trial treatments or their excipients or to drugs of similar chemical classes"}
  • {"criterion_text":"- Participant participating in a trial involving an investigational drug or device within the last 30 days that would impact this trial"}
  • {"criterion_text":"- Participants who cannot comply with trial protocol requirements and procedures"}
  • {"criterion_text":"- Severe active infection indicated by sepsis (requirement for pressors with or without positive blood cultures)"}
  • {"criterion_text":"- Pregnant or breastfeeding"}
  • {"criterion_text":"- History of bleeding diathesis or evidence of active abnormal bleeding within the previous 30 days"}
  • {"criterion_text":"- Active internal bleeding"}
  • {"criterion_text":"- Indication of symptomatic intracranial hemorrhage (sICH)"}
  • {"criterion_text":"- Severe, uncontrolled hypertension (systolic blood pressure >180 mmHg or diastolic blood pressure >110 mmHg)"}
  • {"criterion_text":"- Disseminated malignancy or other co-morbid illness limiting life expectancy <3 months independent of the TMA disorder"}
  • {"criterion_text":"- Recent major surgery (Investigator judgment)"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Treatment emergent adverse events","definition_or_measurement_approach":""}

Secondary endpoints

  • {"endpoint_text":"- Time to clinical response","definition_or_measurement_approach":"Time-to-event measure (time from intervention to clinical response) as stated"}
  • {"endpoint_text":"- Change in platelet count from baseline","definition_or_measurement_approach":"Change from baseline platelet count"}
  • {"endpoint_text":"- Time to recovery of platelets to ≥150×10E9/L","definition_or_measurement_approach":"Time-to-event: time until platelet count reaches ≥150×10^9/L"}
  • {"endpoint_text":"- Change of organ damage markers from baseline","definition_or_measurement_approach":"Change from baseline in organ damage biomarkers"}
  • {"endpoint_text":"- Time to recovery of LDH to ≤2 × ULN","definition_or_measurement_approach":"Time-to-event: time until LDH ≤2 × upper limit of normal"}
  • {"endpoint_text":"- Assessment or improvement (improvement of ≥1 grade in CTCAE v5.0 scale) of disease-related signs and symptoms within 90 days post intervention (by number of unique participants and by total number of AEs)","definition_or_measurement_approach":"Improvement defined as ≥1 grade improvement on CTCAE v5.0 within 90 days post intervention; reported by number of participants and total AEs"}
  • {"endpoint_text":"- Number of days in the intensive care unit and the number of days hospitalized","definition_or_measurement_approach":"Count of ICU days and total hospitalization days"}
  • {"endpoint_text":"- All-cause and disease-specific mortality within 90 days post-intervention","definition_or_measurement_approach":"Mortality (all-cause and disease-specific) assessed up to 90 days post-intervention"}
  • {"endpoint_text":"- Plasma concentrations of TGD001, PK parameters such as Cmax, Tmax, AUC, t1/2","definition_or_measurement_approach":"Pharmacokinetic parameters: plasma concentrations and derived PK parameters (Cmax, Tmax, AUC, t1/2)"}
  • {"endpoint_text":"- Development of ADA","definition_or_measurement_approach":"Assessment of anti-drug antibodies (ADA) development"}

Recruitment

Planned Sample Size
30
Recruitment Window Months
33
Consent Approach
Adults (age ≥18) must provide written informed consent; inclusion criteria require participants be willing and able to provide informed consent and sign the ICF. Subject information sheets and ICFs are provided for each country and language (documents L1_SIS and ICF for FR/DE/IT/ES available), and specific ICFs exist for pregnant participants and pregnant partners.

Geography

Total Number Of Sites
4
Total Number Of Participants
40

France

Earliest CTIS Part Ii Submission Date
26-01-2026
Latest Decision Or Authorization Date
11-03-2026
Processing Time Days
44
Number Of Sites
1
Number Of Participants
10

Sites

Site Name
Hôpital Saint-Louis
Department Name
Hematology
Principal Investigator Name
Paul Coppo
Principal Investigator Email
Paul.coppo@aphp.fr
Contact Person Name
Paul Coppo
Contact Person Email
Paul.coppo@aphp.fr
Number Of Participants
10

Germany

Earliest CTIS Part Ii Submission Date
18-02-2026
Latest Decision Or Authorization Date
06-03-2026
Processing Time Days
16
Number Of Sites
1
Number Of Participants
10

Sites

Site Name
University Hospital Cologne
Department Name
Internal Medicine
Principal Investigator Name
Paul Brinkötter
Principal Investigator Email
Paul.brinkkoetter@uk-koeln.de
Contact Person Name
Paul Brinkötter
Contact Person Email
Paul.brinkkoetter@uk-koeln.de
Number Of Participants
10

Italy

Earliest CTIS Part Ii Submission Date
19-11-2025
Latest Decision Or Authorization Date
10-03-2026
Processing Time Days
111
Number Of Sites
1
Number Of Participants
10

Sites

Site Name
Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico
Department Name
Internal Medicine
Principal Investigator Name
Flora Peyvandi
Principal Investigator Email
flora.peyvandi@policlinico.mi.it
Contact Person Name
Flora Peyvandi
Number Of Participants
10

Spain

Earliest CTIS Part Ii Submission Date
07-01-2026
Latest Decision Or Authorization Date
09-03-2026
Processing Time Days
61
Number Of Sites
1
Number Of Participants
10

Sites

Site Name
Hospital Universitario Y Politecnico La Fe
Department Name
Hematology
Principal Investigator Name
Javier De La Rubia
Principal Investigator Email
delarubia_jav@gva.es
Contact Person Name
Javier De La Rubia
Contact Person Email
delarubia_jav@gva.es
Number Of Participants
10

Sponsor

Primary sponsor

Full Name
TargED Biopharmaceuticals B.V.
Organisation Type
Pharmaceutical company
Country Of Registered Address
Netherlands

Contract research organisations

Name
Prime Vigilance
Responsibilities
sponsorDuties code 8, contact info provided (phone and email)

Third parties

  • {"country":"United Kingdom","full_name":"Prime Vigilance","duties_or_roles":"sponsorDuties code 8","organisation_type":"Health care"}

Investigational products

Investigational Product Name
TGD001
Active Substance
UROKINASE, CATALYTIC DOMAIN, FUSED WITH A SINGLE-CHAIN ANTIBODY AGAINST VON WILLEBRAND FACTOR
Modality
Peptide/protein/enzyme
Routes Of Administration
INTRAVENOUS
Route
INTRAVENOUS
Orphan Designation
Yes

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