Study of Tinostamustine First-in-Class Alkylating HDACi Fusion Molecule in Relapsed/Refractory Hematologic Malignancies

  • End date
    Dec 14, 2022
  • participants needed
  • sponsor
    Mundipharma-EDO GmbH
Updated on 14 June 2021
hematologic malignancy
multiple myeloma
hodgkin's disease
fungal infection
gilbert's syndrome
neutrophil count
prolymphocytic leukemia
t-cell lymphoma
peripheral t-cell lymphoma
angioimmunoblastic t-cell lymphoma
mycosis fungoides
sezary syndrome
anaplastic large cell lymphoma
refractory multiple myeloma
refractory hodgkin lymphoma
cutaneous t-cell lymphoma
refractory peripheral t-cell lymphoma
t-cell prolymphocytic leukemia


This study evaluates the efficacy, safety and pharmacokinetics of tinostamustine (EDO-S101) in patients with relapsed/refractory hematologic malignancies. All patients will receive tinostamustine.


Tinostamustine is a new chemical entity, a first-in-class fusion molecule of an alkylator, bendamustine and a histone-deacetylase inhibitor (HDACi), vorinostat. It is anticipated that tinostamustine may have activity in various hematological malignancies and solid tumors.

The study consists of 2 stages:

  • Stage 1: Dose Escalation to determine Maximum Tolerated Dose (MTD) at the optimal infusion time and the pharmacokinetic (PK) profiles; is expected to enroll between 21 and 48 patients. Stage 1 has now been completed.
  • Stage 2: Expansion in five Cohorts, in which approximately 12-16 patients will be enrolled per cohort, for a maximum of 70 patients.

In Stage 1, tinostamustine doses were escalated following the standard 3+3 design. The decision to escalate to the next dose level occurred after all cohort patients completed 3 weeks (21 days) of observation and have been evaluated for safety and toxicity.The starting dose was a 1 hour infusion of 20 mg/m2, and the maximum dose level was 150 mg/m2. Reduced infusion times of 45 minutes and 30 minutes were assessed once the maximum tolerated dose at a 1-hour infusion was determined.

In Stage 2, five cohorts of patients (with relapsed/refractory multiple myeloma (MM); relapsed/refractory Hodgkin's lymphoma; relapsed/refractory peripheral T-cell lymphoma (PTCL); relapsed/refractory cutaneous T-cell lymphoma (CTCL); and relapsed/refractory T-cell Prolymphocytic leukemia (T-PLL) will be enrolled and treated at the recommended Phase 2 dose (RP2D) based on results of Stage 1. For MM patients, treatment will occur on Day 1 and Day 15 of a 28 day cycle. For lymphoma patients, treatment will occur on Day 1 of a 21 day cycle. Patients in each stage of the study are expected to receive a median of four Cycles of therapy, and the maximum number of treatment Cycles allowed is 12.

Condition Hodgkin's Disease, Hematologic Malignancy, Multiple Myeloma, Blood disorder, Lymphoma, Peripheral T-Cell Lymphoma, cutaneous T-cell lymphoma, Lymphoproliferative Disorder, Lymphoma, T-Cell Lymphoma, T-Cell Prolymphocytic Leukemia, Non-Hodgkin's Lymphoma, Blood Cancer, Hematologic Cancer, Hematological Disorders, Hematologic Neoplasms, Lymphoproliferative disorders, multiple myeloma (mm), hodgkin, hodgkin's lymphomas, hodgkin lymphomas, hodgkins lymphoma, hodgkin's lymphoma, hematological malignancy, hematologic malignancies, hematological tumor, haematological malignancy, hematological malignancies
Treatment EDO-S101, Tinostamustine
Clinical Study IdentifierNCT02576496
SponsorMundipharma-EDO GmbH
Last Modified on14 June 2021


Yes No Not Sure

Inclusion Criteria

Patient willing and able to sign an informed consent
Patients age 18 years at signing the informed consent
Life expectancy > 3 months
Diagnosis of relapsed or refractory lymphoid malignancy for which there are no available therapies
Eastern Cooperative Oncology Group (ECOG) performance status 2
Absolute Neutrophil Count >1,000 L
Aspartate aminotransferase/alanine aminotransferase (AST/ALT) 2.5 upper limit of normal (ULN)
Platelets 100,000 L
Total bilirubin <2.0 mg/dL unless elevated due to known Gilbert's syndrome
Creatinine 1.5 x ULN
Males and females of child-bearing potential, and their partners, must be willing to use at least two effective forms of birth control during the study drug administration and for at least 90 days after the administration of the study drug to be eligible to participate. Vasectomized partners and patients must be willing to use a secondary method of effective birth control. Sexual abstinence is considered a highly effective method only if defined as refraining from heterosexual intercourse during the entire period of risk associated with the study treatment. The reliability of sexual abstinence needs to be evaluated in relation to the duration of the clinical trial and the preferred and usual lifestyle of the patient
Serum potassium and magnesium at least at the lowest limit of normal (LLN) at baseline(before every IMP administration; if it is below LNN, (supplementation is permissible)
Specific Eligibility Criteria for Each Patient Cohort in Stage 2 Phase of the
Cohort 1: relapsed/refractory multiple myeloma 1. At least one line and a
Cohort 2: relapsed/refractory Hodgkin's lymphoma
maximum of five prior standard systemic therapies and no other standard
At least three lines of prior therapy and no other standard therapy available with proven clinical benefit
therapy available with proven clinical benefit
Cohort 4: relapsed/refractory cutaneous T-cell lymphoma (CTCL), subtypes
mycosis fungoides (MF) and Szary syndrome (SS)
At least one line and a maximum of four prior standard systemic therapies and no other standard therapy available with proven clinical benefit
Only CTCL patients with histologically or cytologically confirmed MF or SS with stage IIb to IVb disease based on modified ISCL/EORTC staging

Exclusion Criteria

Patient who had a hematologic malignancy that has transformed
Patients with any central nervous system involvement
Any patient who has relapsed within 100 days of stem cell infusion following an allogenic or an autologous bone marrow transplant
Patients with corrected QT (QTc) interval (Fridericia's formula) > 450 msec
Patients who are on treatment with drugs known to prolong the QT/QTc interval
Any serious medical condition that interferes with adherence to study procedures
Patients with a history of another malignancy diagnosed within three years of study enrollment excluding basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or in situ cervical cancer that has undergone potentially curative therapy
Pregnant or breast feeding females
Previous cancer therapies within three (3) weeks of dosing as long as the patient has recovered to eligibility levels prior to treatment in this study
New York Heart Association (NYHA) stage III/IV congestive heart failure. The following arrhythmias not adequately controlled, active: atrial fibrillation/flutter with poor rate control, documented sustained ventricular tachycardia (defined as >30 seconds or requiring cardioversion before 30 seconds have elapsed) or TdP
Active infections, or other significant co-morbidities [(e.g., active central nervous system metastases and/or carcinomatous meningitis, active infection requiring systemic therapy, history of human immunodeficiency virus (HIV) infection, or active Hepatitis B or Hepatitis C
Patients on Valproic Acid for any indication (epilepsy, mood disorder) must be excluded from the trial
Use of other investigational agents within 30 days or 5 half-lives prior to the first dose of study drug unless patient has recovered from any related toxicities Grade 1
Steroid treatment within seven (7) days prior to study treatment. Patients that require intermittent use of bronchodilators, topical steroids or local steroid injections will not be excluded from the study. Patients who have been stabilized to 10 mg PO QD or less seven (7) days prior to study drug administration are allowed
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