A Safety and Pharmacokinetic Phase I/Ib Study of AMC303 in Patients With Solid Tumours

A Safety, Tolerability and Pharmacokinetic Dose Escalation and Expansion, Phase I/Ib Study of AMC303 as Monotherapy in Patients With Advanced or Metastatic, Malignant Solid Tumour of Epithelial Origin

This is a two part Phase I/Ib, open-label, non-randomized and multi-center, dose escalation study with a 3+3 design (Part 1) and an expansion cohort at the Maximum Tolerated Dose (MTD)/Recommended Phase 2 Dose (RP2D) (Part 2). If MTD is not reached in Part 1, RP2D will be determined after completion of Part 1 considering safety and tolerability, also beyond the dose limiting toxicity (DLT) period, pharmacokinetic (PK) and pharmacodynamic (PD) results.

Study Overview

• Status: Completed
• Conditions: Malignant Solid Tumor
• Intervention / Treatment: Drug: AMC303

• Study Type: Interventional
• Enrollment (Actual): 55
• Phase: Phase 1

Contacts and Locations

Study Locations

• Belgium
  • Brussel, Belgium, 1200
    • Cliniques Universitaires Saint Luc
  • Brussels, Belgium, 1000
    • Jules Bordet Instiut
• Spain
  • Barcelona, Spain, 08035
    • Vall d'Hebron Institute of Oncology (VHIO)
  • Madiedo, Spain, 28050
    • START Madrid-CIOCC, Centro Integral Oncológico Clara Campal
  • Málaga, Spain
    • Hospital Universitario Virgen de la Victoria
  • Valencia, Spain, 46010
    • Instituto de Investigación Sanitaria INCLIVA, Hospital Clínico de Valencia
  • Barcelona
    • L'Hospitalet de Llobregat, Barcelona, Spain, 08908
      • Institut Catala d'Oncologia, Hospital Duran i Reynals

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Histologically confirmed and documented, advanced or metastatic, accessible malignant solid tumour of epithelial origin and for which no standard therapy exists or standard therapy has failed.
2. Presence of a measurable tumour according to RECIST 1.1. criteria
3. At least 4 weeks from the completion of any previous cytotoxic chemotherapy, 6 weeks from biological therapy (monoclonal antibodies) or cancer immunotherapy (immune checkpoint modulators) or 2 weeks from targeted therapy (receptor tyrosine kinase inhibitors) at time of administration of AMC303.
4. Male or female patients, at least 18 years of age
5. Eastern Cooperative Oncology Group (ECOG) performance status 0 - 1
6. Life expectancy > 12 weeks.

7. Adequate haematological function defined as

   • Absolute neutrophil count (ANC) > 1,500 / µL
   • Platelets > 100,000 / µL
   • Haemoglobin > 9 g /dL.

8. Adequate renal function defined as

   • Glomerular filtration rate (GFR) ≥ 50 ml/min according to local laboratory standard or
   • Serum creatinine < 1.5 mg / dL.

9. Adequate hepatic function defined as

   • Total bilirubin < 1.5x institutional upper limit of normal (ULN)
   • AST, ALT ≤ 3x institutional ULN or < 5x institutional ULN if known hepatic metastases
   • Alkaline phosphatase < 3x institutional ULN or < 5x institutional ULN if known hepatic metastases.
10. Patient may have central nervous system (CNS) involvement if metastases have been treated and are stable at least 4 weeks after completion of radiation therapy and/or surgery. Stable disease is defined as absence of new neurological symptoms, absence of the need for steroid therapy and radiographic confirmation of stable disease. Radiographic confirmation of stable disease 4 weeks after completion of radiation therapy is not required unless indicated by neurological examination.
11. All female subjects will be considered to be of childbearing potential unless they are postmenopausal (at least 12 months consecutive amenorrhea, in the appropriate age group and without other known or suspected cause), or have been sterilized surgically. For female participants and female partners of childbearing potential, willingness and able to use two forms of highly effective contraception methods (e.g. oral contraceptive and condom, intra-uterine device and condom) while on study and for 30 days after the last study treatment. For male participants or male partners of childbearing potential, willingness and able to use two forms of highly effective contraception methods (e.g. oral contraceptive and condom, intra-uterine device and condom,) while on study and for three months after the last study treatment.
12. Provision of signed Informed Consent prior to any study related procedure being performed

Exclusion Criteria:

1. Receipt of any other investigational agent within 28 days prior to first administration of AMC303. Investigational monoclonal antibodies must not be given within 6 weeks before treatment start with AMC303.
2. Enrolment in another clinical study with an investigational drug
3. Presence of residual toxicities of CTCAE Grade > 1 after prior anti-tumour therapy within 2 weeks of first treatment with AMC303 with the exception of Grade 3 alopecia and infusion site reactions
4. Severe concurrent illness or psychiatric illness/social situation that would limit compliance with study requirements
5. Anticipation of major surgical procedures within first 4 weeks of first dose
6. Pregnancy or breast-feeding as determined by a serum pregnancy test (β-HCG) at screening prior to administration of AMC303 and willingness to father a child or to become pregnant
7. Untreated acute infectious disease
8. Patient is known to be suffering from Acquired Immune Deficiency Syndrome (AIDS) or is known to be HIV seropositive without AIDS defining disease
9. Known chronic hepatitis B or C.
10. History of allergic reactions attributed to compounds of similar chemical or biological composition to AMC303.
11. Evidence of any other medical conditions that in the opinion of the investigator may interfere with the planned treatment, affect patient compliance or place the patient at high risk from treatment-related complications
12. Previous malignant disease other than the target malignancy to be investigated within the last 5 years with the exception of basal or squamous carcinoma of the skin or cervical carcinoma in situ
13. Legal incapacity or limited legal capacity

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: AMC303; cohorts will receive ascending doses of AMC303 as intravenous infusion Planned doses are: 0.1 mg/kg, 0.5 mg/kg, 1.5 mg/kg, 4 mg/kg, 10 mg/kg and 20 mg/kg	Drug: AMC303; AMC303 is a CD44v6 inhibitor blocking receptor tyrosine kinase (RTK) pathways; Other Names: CD44v6 inhibitor

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Safety and tolerability of AMC303	Number of patients with treatment-related adverse events as assessed by CTCAE v4.0	6 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Pharmacokinetic properties of AMC303 (Cmax)	Determine maximum plasma concentration (Cmax)	2 days
Pharmacokinetic properties of AMC303 (AUC)	Determine systemic exposure (AUC) after intravenous infusion	2 days
Pharmacokinetic properties of AMC303 (t1/2)	Determine half-life of AMC303 after intravenous infusion	2 days
Response rate of treatment with AMC303 in patients with metastatic solid tumors	Determination of the complete response (CR) and partial response (PR) in patients treated with AMC303	12 months

Collaborators and Investigators

• Sponsor: amcure GmbH
• Investigators: Study Chair: Klaus Dembowsky, MD PhD, amcure GmbH

Publications and helpful links

General Publications

• Matzke-Ogi A, Jannasch K, Shatirishvili M, Fuchs B, Chiblak S, Morton J, Tawk B, Lindner T, Sansom O, Alves F, Warth A, Schwager C, Mier W, Kleeff J, Ponta H, Abdollahi A, Orian-Rousseau V. Inhibition of Tumor Growth and Metastasis in Pancreatic Cancer Models by Interference With CD44v6 Signaling. Gastroenterology. 2016 Feb;150(2):513-25.e10. doi: 10.1053/j.gastro.2015.10.020. Epub 2015 Oct 24.

Helpful Links

• Homepage amcure

Study record dates

Study Major Dates

• Study Start: December 1, 2016
• Primary Completion (Actual): July 28, 2020
• Study Completion (Actual): May 7, 2021

Study Registration Dates

• First Submitted: November 19, 2016
• First Submitted That Met QC Criteria: December 31, 2016
• First Posted (Estimate): January 4, 2017

Study Record Updates

• Last Update Posted (Actual): May 10, 2021
• Last Update Submitted That Met QC Criteria: May 7, 2021
• Last Verified: May 1, 2021

More Information

Terms related to this study

• Keywords: c-Met; CD44v6; VEGFR-2; solid epithelial cancer; RON; receptor tyrosine kinase
• Additional Relevant MeSH Terms: Neoplasms
• Other Study ID Numbers: AMC303-01

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO