Clinical trial • Phase II • Oncology|Gastroenterology

CHIMERIC MONOCLONAL ANTIBODY AGAINST CARCINOEMBRYONIC ANTIGEN CONJUGATED TO FLUOROCHROME BM-104 for Rectal cancer

Phase II trial of CHIMERIC MONOCLONAL ANTIBODY AGAINST CARCINOEMBRYONIC ANTIGEN CONJUGATED TO FLUOROCHROME BM-104 for Rectal cancer.

Overview

Trial Therapeutic Area
Oncology|Gastroenterology
Trial Disease
Rectal cancer
Trial Stage
Phase II
Drug Modality
Monoclonal antibody

Key dates

Initial CTIS Submission Date
18-09-2024
First CTIS Authorization Date
01-10-2024

Trial design

open-label, standard of care surgery (no sgm-101/fgos imaging); experimental arm uses sgm-101 (fluorochrome-labeled anti-cea antibody, solution for injection) administered by intravenous infusion (product info lists max total dose 15 mg) — dosing schedule not explicitly described in the available data.-controlled Phase II trial across 7 sites in Netherlands.

Open Label
Yes
Comparator
Standard of care surgery (no SGM-101/FGOS imaging); experimental arm uses SGM-101 (fluorochrome-labeled anti-CEA antibody, solution for injection) administered by intravenous infusion (product info lists max total dose 15 mg) — dosing schedule not explicitly described in the available data.
Target Sample Size
203
Trial Duration For Participant
730

Eligibility

Recruits 203 No vulnerable population selected. Participants must be over 18 years old and "Patients should be capable and willing to give signed informed consent before study specific procedures." No assent or paediatric consent procedures are described..

Pregnancy Exclusion
Patients pregnant or breastfeeding lack of effective contraception in male or female patients with reproductive potential.
Vulnerable Population
No vulnerable population selected. Participants must be over 18 years old and "Patients should be capable and willing to give signed informed consent before study specific procedures." No assent or paediatric consent procedures are described.

Inclusion criteria

  • {"criterion_text":"- Patients aged over 18 years old\n- All women of child bearing potential and all males must practice effective contraception during the study and be willing and able to continue contraception for at least 30 days after their last dose of study treatment.\n- Patients should be scheduled and eligible for surgery because of a clinical diagnosis of T3 with a threatened CRM or T4 rectal cancer (locally advanced) or recurrent rectal cancer. (UICC. TNM classification of diseases for oncology. 3rd ed. Geneva: World Health Organization; 2000)\n- Patients should be capable and willing to give signed informed consent before study specific procedures."}

Exclusion criteria

  • {"criterion_text":"- Other malignancies, either currently or in the past five years, except adequately treated in situ carcinoma of the cervix and basal or squamous cell skin carcinoma.\n- Patients with a history of, or recently diagnosed with, peritoneal metastases (even those diagnosed during surgery).\n- Patient with a history of a clinically significant allergy.\n- Patients pregnant or breastfeeding lack of effective contraception in male or female patients with reproductive potential.\n- Laboratory abnormalities defined as: a. Aspartate AminoTransferase, Alanine AminoTransferase, Gamma Glutamyl Transferase) or Alkaline Phosphatase levels above 5 times the or; b. Total bilirubin above 2 times the ULN or; c. Serum creatinine above 1.5 times the ULN or; d. Platelet count below 100 x 109/L or; e. Hemoglobin below 4 mmol/L (females) or below 5 mmol/l (males); f. Known positive test for human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAG) or hepatitis C virus (HCV) antibody or patients with untreated serious infections.\n- Any condition that the investigator considers to be potentially jeopardizing the patients’ well-being or the study objectives.\n- Previous administration of SGM-101."}

Endpoints

Primary endpoints

  • {"endpoint_text":"- The primary endpoint is the rate of patients with R0 resections. This endpoint is based on the primary objective of clinical benefit of FGOS combined with SGM-101 as the intraoperative imaging agent.","definition_or_measurement_approach":"Rate of patients with R0 resections; based on the clinical benefit of FGOS combined with SGM-101 as the intraoperative imaging agent."}

Secondary endpoints

  • {"endpoint_text":"- Concordance between intraoperative fluorescence assessment of resected lesions and their histopathology.\n- For every removed specimen: rate of false negatives, false positives, true negatives and true positives concerning fluorescence, with histopathology as the gold standard.\n- Tumor to background ratio (TBR) for fluorescence in malignant and benign tissue.\n- Modification of operative plan due to imaging (e.g. more/less extensive resection or adjustment of IORT) and change in postoperative treatment will be recorded.\n- 30-day mortality and 30-day complication rates.\n- 2-year overall survival, 2-year disease free survival and 2-year local recurrence free survival.","definition_or_measurement_approach":"Concordance: comparison of intraoperative fluorescence assessment with histopathology results. False/true positive/negative rates: calculated per removed specimen using histopathology as gold standard. TBR: tumor-to-background fluorescence ratio (fluorescent signal of tumor tissue compared to fluorescence of surrounding normal tissue). Modification of operative plan: recorded changes in surgical plan attributable to imaging (e.g. extent of resection, application of IORT) and postoperative treatment changes. 30-day outcomes: recorded 30-day mortality and complication rates. 2-year outcomes: overall survival, disease-free survival and local recurrence-free survival assessed at 2 years."}

Recruitment

Planned Sample Size
203
Recruitment Window Months
91
Consent Approach
Participants must be capable and willing to give signed informed consent before study-specific procedures. Adults only (>18). Subject information and informed consent form documents are listed in the CTIS document set. No assent or paediatric consent procedures are described; languages of consent documents are not specified in the available data.

Geography

Total Number Of Sites
7
Total Number Of Participants
203

Netherlands

Earliest CTIS Part Ii Submission Date
27-09-2024
Latest Decision Or Authorization Date
01-10-2024
Processing Time Days
4
Number Of Sites
7
Number Of Participants
203

Sites

Site Name
Amsterdam UMC Stichting
Department Name
Surgery
Contact Person Name
Miranda Kusters
Contact Person Email
m.kusters@vumc.nl
Site Name
Radboud universitair medisch centrum Stichting
Department Name
Surgery
Contact Person Name
Hans de Wilt
Contact Person Email
hans.dewilt@radboudumc.nl
Site Name
Leids Universitair Medisch Centrum (LUMC)
Department Name
Surgery
Contact Person Name
Alexander Vahrmeijer
Contact Person Email
a.l.vahrmeijer@lumc.nl
Site Name
Universitair Medisch Centrum Groningen
Department Name
Surgery
Contact Person Name
Patrick Hemmer
Contact Person Email
p.h.j.hemmer@umcg.nl
Site Name
Catharina Ziekenhuis Stichting
Department Name
Surgery
Contact Person Name
Harm Rutten
Contact Person Email
harm.rutten@cze.nl
Site Name
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Department Name
Surgery
Contact Person Name
Kees Verhoef
Contact Person Email
c.verhoef@erasmusmc.nl
Site Name
Haaglanden Medisch Centrum Stichting
Department Name
Surgery
Contact Person Name
Andreas Marinelli
Contact Person Email
a.marinelli@haaglandenmc.nl

Sponsor

Primary sponsor

Full Name
Academisch Ziekenhuis Leiden
Organisation Type
Hospital/Clinic/Other health care facility
Country Of Registered Address
Netherlands

Third parties

  • {"country":"","full_name":"SurgiMab","duties_or_roles":"Source of monetary support","organisation_type":""}
  • {"country":"","full_name":"KWF","duties_or_roles":"Source of monetary support","organisation_type":""}

Investigational products

Investigational Product Name
SGM-101
Active Substance
CHIMERIC MONOCLONAL ANTIBODY AGAINST CARCINOEMBRYONIC ANTIGEN CONJUGATED TO FLUOROCHROME BM-104
Modality
Monoclonal antibody
Routes Of Administration
INTRAVENOUS INFUSION
Route
Intravenous infusion
Starting Dose
15 mg
Maximum Dose
15 mg
Combination Treatment
Yes

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