Clinical trial • Phase III • Endocrinology

INDOCYANINE GREEN for Thyroid diseases | Hypoparathyroidism | Hypocalcemia

Phase III trial of INDOCYANINE GREEN for Thyroid diseases | Hypoparathyroidism | Hypocalcemia.

Overview

Trial Therapeutic Area
Endocrinology
Trial Disease
Thyroid diseases | Hypoparathyroidism | Hypocalcemia
Trial Stage
Phase III
Drug Modality
Diagnostic agent

Key dates

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

Trial design

Intervention arm: use of indocyanine green angiography (INFRACYANINE 25 mg/10 mL, active substance INDOCYANINE GREEN; max total dose reported 0.5 mg/Kg, route: solution for injection). Comparator/control arm: no indocyanine green angiography (standard surgery without ICG). Phase III trial across 1 site in France.

Comparator
Intervention arm: use of indocyanine green angiography (INFRACYANINE 25 mg/10 mL, active substance INDOCYANINE GREEN; max total dose reported 0.5 mg/Kg, route: solution for injection). Comparator/control arm: no indocyanine green angiography (standard surgery without ICG).
Target Sample Size
242
Trial Duration For Participant
180

Eligibility

Recruits 242 Protected adults or persons incapable of giving consent are excluded; signed consent is required from participants. No paediatric participants (<18) are included. A subject information and informed consent form for adults is provided (document 'L1_SIS and ICF adults'). No assent process for minors is described and no vulnerable populations selected..

Pregnancy Exclusion
Pregnant and breast-feeding women
Vulnerable Population
Protected adults or persons incapable of giving consent are excluded; signed consent is required from participants. No paediatric participants (<18) are included. A subject information and informed consent form for adults is provided (document 'L1_SIS and ICF adults'). No assent process for minors is described and no vulnerable populations selected.

Inclusion criteria

  • {"criterion_text":"- Patients requiring total thyroidectomy"}
  • {"criterion_text":"- Signed consent"}
  • {"criterion_text":"- Patient covered by a social security scheme"}

Exclusion criteria

  • {"criterion_text":"- Patients under 18 years of age"}
  • {"criterion_text":"- Protected adult or person incapable of giving consent to the study"}
  • {"criterion_text":"- Pregnant and breast-feeding women"}
  • {"criterion_text":"- Total thyroidectomy (removal of the remaining thyroid lobe in a patient who has already had a hemi thyroidectomy)"}
  • {"criterion_text":"- Previous thyroid or parathyroid surgery"}
  • {"criterion_text":"- Refusal to participate"}
  • {"criterion_text":"- Known allergic reaction to indocyanine green (ICG)"}
  • {"criterion_text":"- Women of childbearing age not using an adequate method of contraception"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Occurrence (yes/no) of albumin-corrected hypocalcaemia (≤2 mmol/L) within 48 hours of surgery","definition_or_measurement_approach":"Albumin-corrected blood calcium measurement; threshold ≤2 mmol/L assessed within 48 postoperative hours (occurrence yes/no)."}

Secondary endpoints

  • {"endpoint_text":"- Occurrence (yes/no) of post-operative hypocalcaemia corrected by albumin (<2mmol/L) at D8, M1 and M6","definition_or_measurement_approach":"Albumin-corrected blood calcium measured at Day 8, Month 1 and Month 6; threshold <2 mmol/L (occurrence yes/no)."}
  • {"endpoint_text":"- Modification (yes/no) of the surgical procedure by improving detection of the parathyroids or their vascularisation during thyroidectomy with the use of indocyanine green angiography","definition_or_measurement_approach":"Assessment of whether surgical procedure was modified intraoperatively due to improved detection/vascularisation of parathyroids with ICG (yes/no)."}
  • {"endpoint_text":"- Intraoperative parathyroid vitality score when using indocyanine green angiography","definition_or_measurement_approach":"Use of an intraoperative parathyroid vitality score measured during surgery when ICG angiography is used (score-based measurement)."}
  • {"endpoint_text":"- Occurrence (yes/no) of hypoPTH on D1 and D2 post-op (<10ng/L)","definition_or_measurement_approach":"Measurement of parathyroid hormone (PTH) on Day 1 and Day 2 post-op; threshold <10 ng/L (occurrence yes/no)."}
  • {"endpoint_text":"- Occurrence (yes/no) of mild (asymptomatic and >1.7mmol/l), moderate (symptomatic and >1.7mmol/l) and profound (<1.7mmol/l) hypocalcaemia in the 48 postoperative hours","definition_or_measurement_approach":"Classification of hypocalcaemia within 48 hours post-op by calcium level and symptoms: mild (asymptomatic and >1.7 mmol/L), moderate (symptomatic and >1.7 mmol/L), profound (<1.7 mmol/L)."}
  • {"endpoint_text":"- Occurrence of an adverse reaction linked to the injection of indocyanine green","definition_or_measurement_approach":"Recording of adverse reactions temporally associated with ICG injection (occurrence documented)."}

Recruitment

Planned Sample Size
242
Recruitment Window Months
68
Consent Approach
Signed informed consent is required from participants (document 'L1_SIS and ICF adults' available). Minors (<18) are excluded; protected adults/incapable persons are excluded. No assent process described. Languages of consent documents are not specified.

Geography

Total Number Of Sites
1
Total Number Of Participants
242

France

Earliest CTIS Part Ii Submission Date
08-07-2024
Latest Decision Or Authorization Date
31-07-2024
Processing Time Days
23
Number Of Sites
1
Number Of Participants
242

Sites

Site Name
Centre Hospitalier Regional Et Universitaire De Brest
Department Name
ORL et Chirurgie cervico-faciale
Principal Investigator Name
Jean-Christophe LECLERE
Principal Investigator Email
jean-christophe.leclere@chu-brest.fr
Contact Person Name
Jean-Christophe LECLERE
Number Of Participants
242

Sponsor

Primary sponsor

Full Name
Centre Hospitalier Regional Et Universitaire De Brest
Organisation Type
Hospital/Clinic/Other health care facility
Country Of Registered Address
France

Investigational products

Investigational Product Name
INFRACYANINE 25 mg/10 mL, poudre et solvant pour solution injectable
Active Substance
INDOCYANINE GREEN
Modality
Diagnostic agent
Routes Of Administration
SOLUTION FOR INJECTION
Route
SOLUTION FOR INJECTION
Authorisation Status
Marketing authorisation number 34009 360 841 7 9 (France)
Maximum Dose
0.5 mg/Kg

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