Trial Outcomes & Findings for 89Zr-TLX250 for PET/CT Imaging of ccRCC- ZIRCON Study (NCT NCT03849118)

NCT ID: NCT03849118

Last Updated: 2024-05-17

Results Overview

This outcome was evaluated on all patients by using a PET/CT machine to determine the uptake of the Zr89 radiotracer within the renal lesion. This was compared against the histological determination of the lesion type following resection of the lesion

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

300 participants

Primary outcome timeframe

Diagnostic PET/CT scan on Day 5 ± 2 days post 89Zr-TLX250 administration. Histological confirmation of the material from nephrectomy conducted within 90 days post 89Zr-TLX250 administration served as standard of truth.

Results posted on

2024-05-17

Participant Flow

Participant milestones

Participant milestones
Measure
89Zr-girentuximab
A single administration of 37 Megabecquerel (MBq) (±10%) 89Zr-girentuximab, containing a mass dose of 10 mg of girentuximab, followed by a diagnostic scan on Day 5 ± 2 days after administration. 89Zr-girentuximab: Single IV administration on Day 0, followed by diagnostic scan on Day 5 +/- 2 days.
Overall Study
STARTED
300
Overall Study
COMPLETED
275
Overall Study
NOT COMPLETED
25

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

89Zr-TLX250 for PET/CT Imaging of ccRCC- ZIRCON Study

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
89Zr-girentuximab
n=300 Participants
A single administration of 37 MBq (±10%) 89Zr-TLX250, containing a mass dose of 10 mg of girentuximab followed by a diagnostic scan on Day 5 ± 2 days
Age, Categorical
<=18 years
0 Participants
n=99 Participants
Age, Categorical
Between 18 and 65 years
176 Participants
n=99 Participants
Age, Categorical
>=65 years
124 Participants
n=99 Participants
Age, Continuous
62 years
STANDARD_DEVIATION 11.8 • n=99 Participants
Sex: Female, Male
Female
86 Participants
n=99 Participants
Sex: Female, Male
Male
214 Participants
n=99 Participants
Race/Ethnicity, Customized
American Indian or Alaskan Native
0 participants
n=99 Participants
Race/Ethnicity, Customized
Asian
9 participants
n=99 Participants
Race/Ethnicity, Customized
Black or African American
13 participants
n=99 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 participants
n=99 Participants
Race/Ethnicity, Customized
White
277 participants
n=99 Participants
Race/Ethnicity, Customized
Missing
1 participants
n=99 Participants
Region of Enrollment
Canada
6 participants
n=99 Participants
Region of Enrollment
Netherlands
38 participants
n=99 Participants
Region of Enrollment
Turkey
29 participants
n=99 Participants
Region of Enrollment
Belgium
29 participants
n=99 Participants
Region of Enrollment
United States
113 participants
n=99 Participants
Region of Enrollment
United Kingdom
1 participants
n=99 Participants
Region of Enrollment
Australia
35 participants
n=99 Participants
Region of Enrollment
France
45 participants
n=99 Participants
Region of Enrollment
Spain
4 participants
n=99 Participants

PRIMARY outcome

Timeframe: Diagnostic PET/CT scan on Day 5 ± 2 days post 89Zr-TLX250 administration. Histological confirmation of the material from nephrectomy conducted within 90 days post 89Zr-TLX250 administration served as standard of truth.

Population: The overall number of participants analyzed consisted of all enrolled patients who had evaluable PET/CT imaging and a confirmed histopathology diagnosis. This number (284) is lower than the baseline participants (of 300) as 16 patients did not have both of these data points.

This outcome was evaluated on all patients by using a PET/CT machine to determine the uptake of the Zr89 radiotracer within the renal lesion. This was compared against the histological determination of the lesion type following resection of the lesion

Outcome measures

Outcome measures
Measure
89Zr-girentuximab
n=284 Participants
Single diagnostic administration, followed by a diagnostic scan on Day 5 ± 2 days.
Sensitivity and Specificity of Qualitative Assessment of PET/CT Imaging With 89Zr-TLX250 to Noninvasively Detect ccRCC in Patients With Indeterminate Renal Masses, Using Histology as Standard of Truth.
True negative
84 Participants
Sensitivity and Specificity of Qualitative Assessment of PET/CT Imaging With 89Zr-TLX250 to Noninvasively Detect ccRCC in Patients With Indeterminate Renal Masses, Using Histology as Standard of Truth.
False positive
11 Participants
Sensitivity and Specificity of Qualitative Assessment of PET/CT Imaging With 89Zr-TLX250 to Noninvasively Detect ccRCC in Patients With Indeterminate Renal Masses, Using Histology as Standard of Truth.
False negative
30 Participants
Sensitivity and Specificity of Qualitative Assessment of PET/CT Imaging With 89Zr-TLX250 to Noninvasively Detect ccRCC in Patients With Indeterminate Renal Masses, Using Histology as Standard of Truth.
True Positive
159 Participants

Adverse Events

Adverse Events Information

Serious events: 26 serious events
Other events: 86 other events
Deaths: 2 deaths

Serious adverse events

Serious adverse events
Measure
Adverse Events Information
n=300 participants at risk
The safety analysis set (SAF) consisted of all patients who received 89Zr-TLX250.
Blood and lymphatic system disorders
Anemia
0.33%
1/300 • 3 years
Cardiac disorders
Tachycardia
0.33%
1/300 • 3 years
Gastrointestinal disorders
Abdominal Pain
0.33%
1/300 • 3 years
Gastrointestinal disorders
Hemoperitoneum
0.33%
1/300 • 3 years
Gastrointestinal disorders
Intestinal Obstruction
0.33%
1/300 • 3 years
Gastrointestinal disorders
Nausea
0.33%
1/300 • 3 years
Gastrointestinal disorders
Retroperitoneal Effusion
0.33%
1/300 • 3 years
Gastrointestinal disorders
Vomiting
0.33%
1/300 • 3 years
General disorders
Asthenia
0.33%
1/300 • 3 years
General disorders
Death
0.33%
1/300 • 3 years
General disorders
Multiple organ dysfunctional syndrome
0.33%
1/300 • 3 years
Hepatobiliary disorders
Ischemic Hepatitis
0.33%
1/300 • 3 years
Infections and infestations
Hematoma Infection
0.33%
1/300 • 3 years
Infections and infestations
Infection
0.33%
1/300 • 3 years
Infections and infestations
Klebsiella Infection
0.33%
1/300 • 3 years
Infections and infestations
Pneumonia
0.33%
1/300 • 3 years
Infections and infestations
Pyelonephritis
0.33%
1/300 • 3 years
Infections and infestations
Sepsis
0.33%
1/300 • 3 years
Injury, poisoning and procedural complications
Arterial Injury
0.33%
1/300 • 3 years
Injury, poisoning and procedural complications
Post procedural bile leak
0.33%
1/300 • 3 years
Injury, poisoning and procedural complications
Post procedural complication
0.33%
1/300 • 3 years
Injury, poisoning and procedural complications
Post procedural hematuria
0.33%
1/300 • 3 years
Injury, poisoning and procedural complications
Post procedural hemorrhage
2.3%
7/300 • 3 years
Injury, poisoning and procedural complications
Post procedural hypotension
0.33%
1/300 • 3 years
Injury, poisoning and procedural complications
Procedural pain
0.33%
1/300 • 3 years
Injury, poisoning and procedural complications
Procedural pneumothorax
0.33%
1/300 • 3 years
Metabolism and nutrition disorders
Dehydration
0.67%
2/300 • 3 years
Metabolism and nutrition disorders
Hypovolemia
0.33%
1/300 • 3 years
Musculoskeletal and connective tissue disorders
Hematoma muscle
0.33%
1/300 • 3 years
Nervous system disorders
Cerebrovascular accident
0.33%
1/300 • 3 years
Nervous system disorders
Syncope
0.67%
2/300 • 3 years
Renal and urinary disorders
Acute kidney injury
0.33%
1/300 • 3 years
Renal and urinary disorders
Renal Impairment
0.33%
1/300 • 3 years
Renal and urinary disorders
Subcapsular renal hematoma
0.33%
1/300 • 3 years
Renal and urinary disorders
Urinary retention
0.67%
2/300 • 3 years
Renal and urinary disorders
Urinoma
0.33%
1/300 • 3 years
Respiratory, thoracic and mediastinal disorders
Acute pulmonary edema
0.33%
1/300 • 3 years
Respiratory, thoracic and mediastinal disorders
Pleural effusion
0.33%
1/300 • 3 years
Respiratory, thoracic and mediastinal disorders
Pneumothorax
0.33%
1/300 • 3 years
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
0.67%
2/300 • 3 years
Skin and subcutaneous tissue disorders
Subcutaneous emphysema
0.33%
1/300 • 3 years
Vascular disorders
Arteriosclerosis
0.33%
1/300 • 3 years
Vascular disorders
Hypotension
0.33%
1/300 • 3 years

Other adverse events

Other adverse events
Measure
Adverse Events Information
n=300 participants at risk
The safety analysis set (SAF) consisted of all patients who received 89Zr-TLX250.
Gastrointestinal disorders
Abdominal Pain
1.7%
5/300 • 3 years
Gastrointestinal disorders
Constipation
2.7%
8/300 • 3 years
Gastrointestinal disorders
Diarrhea
2.7%
8/300 • 3 years
Gastrointestinal disorders
Nausea
3.7%
11/300 • 3 years
Gastrointestinal disorders
Vomiting
2.0%
6/300 • 3 years
Injury, poisoning and procedural complications
Procedural pain
3.7%
11/300 • 3 years
Vascular disorders
Hypertension
2.0%
6/300 • 3 years
Nervous system disorders
Headache
3.0%
9/300 • 3 years
General disorders
Fatigue
2.7%
8/300 • 3 years
General disorders
Pain
2.3%
7/300 • 3 years
Infections and infestations
Urinary tract infection
2.3%
7/300 • 3 years

Additional Information

Dr. Kavita Vadali, Sr. Clinical Project Manager

Telix Pharmaceuticals (Innovations) Pty Ltd

Phone: +1 919-924-8887

Results disclosure agreements

  • Principal investigator is a sponsor employee If the Study is a Multi-center Study, then the Institution agrees that no publication of the study results may be made until publication of the results of the multi-center study or 2 years after study completion, whichever is the sooner.
  • Publication restrictions are in place

Restriction type: OTHER