This was a monocentric, open label, Phase I-IIa study. Eligible patients who signed the ICF received two single intravenous (IV) bolus of the imaging agent 99mTc-rhAnnexin V-128. The first dose was administered on Day 1, and the second dose on Day 42 (±2 weeks). All patients were to start a new disease modifying treatment for RA or AS on Day 2. This disease modifying treatment was at the discretion of the investigator and was not chosen by the sponsor. Safety was monitored at every visit. Whole body scintigraphic imaging was performed at Day 1 and Day 42 after 99mTc-rhAnnexin V-128 dosing. Clinical disease assessments were performed at screening, Day 42 and Day 90 to assess response to RA or AS treatment. Blood was drawn to test for 99mTc-rhAnnexin V-128 immunogenicity at screening and on Days 30, 56 and 90. Patients participating in the pharmacokinetic (PK)/dosimetric sub-study had additional assessments in the 24 hours following the Day 1 dose of 99mTc-rhAnnexin V-128.
The study was terminated early after the inclusion of 16 of the 20 planned patients. The sponsor decided to terminate the study earlier than planned due to slow accrual. Novartis acquired Advanced Accelerator Applications SA.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
16
1 single intravenous bolus administration of 250 MBq, at Day 1 and at Day 42.
Centre Hospitalier Universitaire Vaudois
Lausanne, Canton of Vaud, Switzerland
Number of Participants With Treatment Emergent Adverse Events (TEAEs), Serious Adverse Events (SAE) and Death
An adverse event (AE) is defined as any untoward medical occurrence in a patient and which does not necessarily have a causal relationship with the study medication. An AE can therefore be any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease, temporally associated with the use of a study medication, whether or not causally related to the study medication. TEAEs are defined as all AEs reported after the first dose. An SAE is any untoward medical occurrence that at any dose: results in death, is life-threatening, life-threatening, results in persistent or significant disability/incapacity, results in congenital anomaly or birth defect, requires in-patient hospitalization or leads to prolongation of hospitalization.
Time frame: From screening up to Day 90
Area Under the Curve Extrapolated to Infinity (AUC) of 99mTc-rhAnnexin V-128
AUC is defined as area under the curve extrapolated to infinity of 99mTc-rhAnnexin V-128.
Time frame: Day 1 (0 (Predose), 0.05, 0.10, 0.15, 0.30, 1.00, 1.50, 2.00, 4.00 and 24.00 hours)
Distribution Volume (Vz) of 99mTc-rhAnnexin V-128
Vz is defined as the distribution volume of 99mTc-rhAnnexin V-128.
Time frame: Day 1 (0 (Predose), 0.05, 0.10, 0.15, 0.30, 1.00, 1.50, 2.00, 4.00 and 24.00 hours)
Systemic Clearance (Cl) of 99mTc-rhAnnexin V-128
Cl is defined as the systemic clearance of 99mTc-rhAnnexin V-128.
Time frame: Day 1 (0 (Predose), 0.05, 0.10, 0.15, 0.30, 1.00, 1.50, 2.00, 4.00 and 24.00 hours)
Elimination Half-life (t1/2) of 99mTc-rhAnnexin V-128
t1/2 is defined as the elimination half-life of 99mTc-rhAnnexin V-128.
Time frame: Day 1 (0 (Predose), 0.05, 0.10, 0.15, 0.30, 1.00, 1.50, 2.00, 4.00 and 24.00 hours)
Serum Concentration of rhAnnexin V-128 Based on Enzyme-linked Immunosorbent Assay (ELISA) Analysis
Serum concentration of rhAnnexin V-128 based on ELISA analysis were to be evaluated and reported overtime.
Time frame: Day 1 (0 (Predose), 0.05, 0.10, 0.15, 0.30, 1.00, 1.50, 2.00, 3.00, 4.00, 6.00 and 24.00 hours)
99mTc-rhAnnexin V-128 Blood Cpm Decay Corrected Data (Counts Per Minute in 1 mL Sample)
Total radioactivity count per minute in whole blood samples were reported.
Time frame: Day 1 (0 (Predose), 0.05, 0.10, 0.15, 0.30, 1.00, 1.50 to 2.00, 3.00 to 4.00 and 24.00 hours)
99mTc-rhAnnexin V-128 Serum Cpm Decay Corrected Data (Counts Per Minute in 1 mL Sample)
Total radioactivity count per minute in serum samples were reported.
Time frame: Day 1 (0 (Predose), 0.05, 0.10, 0.15, 0.30, 1.00, 1.50 to 2.00, 3.00 to 4.00, 6.00 and 24.00 hours)
99mTc-rhAnnexin V-128 Urine Cpm Decay Corrected Data (Counts Per Minute in 1 mL Sample)
Total radioactivity count per minute in urine samples were reported.
Time frame: Day 1 (0 (Predose), 1.00, 4.00, 6.00 and 24.00 hours)
Number of Annexin Related Species as Assessed Size-Exclusion HPLC- High-Performance Liquid Chromatography (SEC-HPLC) Analysis
Urine samples (10 mL aliquots) were analysed as a function of time by SEC-HPLC technique at the local laboratory in order to gain information on the chemical status of 99mTc-rhAnnexin V-128 and on the presence of 99mTc-rhAnnexin V-128-related species.
Time frame: Day 1 (0 (Predose), up to 1.00 hour, from 1.00 to 4.00 hours, from 4.00 to 6.00 hours, from 16.00 to 24.00 hours)
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