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TTAC-0001 Phase II Trial With Recurrent Glioblastoma Progressed on Bevacizumab

A Multicenter, Open-Label, Phase Ⅱ Clinical Trial to Evaluate the Safety and Efficacy of TTAC-0001, a Fully Human Monoclonal Antibody in Patients With Recurrent Glioblastoma Progressed on Bevacizumab Including Therapy

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03856099
Enrollment
19
Registered
2019-02-27
Start date
2019-11-13
Completion date
2022-07-15
Last updated
2022-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Recurrent Glioblastoma

Brief summary

This is a phase II, open-Label clinical trial to evaluate the safety and efficacy of TTAC-0001 in patients with recurrent glioblastoma who was progressed on bevacizumab including therapy.

Interventions

* Investigational product (IP): TTAC-0001 * Treatment groups: 3 dose groups * Dose group A : TTAC-0001 16 mg/kg on D1 and D15 * Dose group B : TTAC-0001 20 mg/kg on D1 and D15 * Dose group C : TTAC-0001 24 mg/kg on D1 and D15 * Cycle: 4 weeks (28 days per cycle)

Sponsors

PharmAbcine
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Provision of signed and dated informed consent prior to any study specific procedures, sampling or analyses. 2. Aged at least 18 years old 3. Patients must have a histologically proven diagnosis of glioblastoma/gliosarcoma 4. Patients must have previous treatment including bevacizumab 5. Patients must have a radiological diagnosis of recurrent/relapsed or progressive glioblastoma/gliosarcoma after bevacizumab including therapy according to response assessment in neuro-oncology (RANO) criteria 6. At least one confirmed measurable lesion or non measurable lesion as determined by RANO criteria 7. Patients must undergo IDH1 mutational testing on a tumor specimen before entering the study. Immunohistochemistry (IHC) is sufficient for enrollment, although DNA sequencing may also be performed as per local institutional guidelines. Patients are eligible regardless of their tumor status. 8. Karnofsky Performance Status (KPS) ≥ 70 9. A person who satisfies the following criteria in hematologic, renal, and hepatic function tests (1) Hematologic tests - Absolute neutrophil count (ANC) ≥ 1.5 x 109/L - Platelets ≥ 75 x 109/L \- Hemoglobin ≥ 9.0 g/dL (2) Blood coagulation tests \- Prothrombin time (PT) ≤ 1.5 x Upper limit of normal (ULN) \- Activated partial thromboplastin Time (aPTT) ≤ 1.5 x ULN (3) Hepatic function tests * Total bilirubin ≤ 1.5 x ULN * Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) ≤ 3 x ULN (4) Renal function test * Creatinine clearance (CrCl) ≥ 30 mL/minute calculated by Cockcroft-Gault formula 10. Life expectancy of at least 12 weeks 11. Females of child bearing potential must have a negative pregnancy test during screening and must not be breastfeeding or intending to become pregnant during the study. 12. Male patients with female partners of child-bearing potential must be willing to use two forms of acceptable contraception, including one barrier method, during their participation in this study and for 16 weeks following the last dose of the study. Refer to section 10.5.1 Restrictions, permitted methods of contraception and definitions.

Exclusion criteria

1. Diagnosed with malignant tumors, except basal cell carcinoma, cutaneous squamous cell carcinoma, and noninvasive uterine cervical cancer treated within 2 years prior to receiving the first dose of treatment. 2. The following concomitant diseases: (1) Uncontrolled hypertension (systolic blood pressure \[SBP\] \> 150 or diastolic blood pressure \[DBP\] \> 90 mmHg) (2) Uncontrolled seizures (3) Class III or IV heart failure according to New York Heart Association (NYHA) classification (4) Oxygen-dependent chronic disease (5) Active psychiatric disorder (schizophrenia, major depressive disorder, bipolar disorder etc.). Treated depression with ongoing antidepressant medication is not an exclusion. 3\) Not recovered from AEs \< National Cancer Institute -Common Terminology Criteria for Adverse Events (NCI-CTCAE) grade 2 caused by CCRT 4) Treatment with bevacizumab including therapy 2 weeks prior to receiving the first dose of treatment. 5\) Undergone major surgery requiring general anesthesia or a respiratory assistance device within 4 weeks prior to the baseline visit (within 2 weeks for video-assisted thoracoscopic surgery \[VATS\] or open-and-closed \[ONC\] surgery) 6) Treated with other investigational products within 4 weeks prior to the patient receiving the first dose of treatment. 7\) A known history of severe drug hypersensitivity or hypersensitivity to a therapy similar to the study drug 8) Unable to participate in the trial according to the investigator's decision. 9) Patient not eligible for sequential MRI evaluations are not eligible for this study 10) Previous therapy with VEGF-targeted agents except bevacizumab. 11) Known active hepatitis B or hepatitis C infection 12) Has received a live vaccine within 30 days prior to enrollment. Seasonal flu vaccines that do not contain live virus are permitted. 13\) Has had a serious or non-healing wound, ulcer, or bone fracture within 28 days prior to enrollment

Design outcomes

Primary

MeasureTime frameDescription
Adverse Eventsuntil time of progressive disease or 1 yearThe frequency and percentage of AEs will be presented by dose goup

Secondary

MeasureTime frameDescription
Progression free survival rate at 6 monthsat the end of 6 monthsThe rate and 2-sided 95% confidence interval of progression free survival at the 6-month
Progression free survivaluntil time of progressive disease or time point of patients' death which come first assessed up to 1 yearPeriod from the date of the drug administration to the disease progression time point
Progression free survival rate at 4 monthsat the end of 4 monthsThe rate and 2-sided 95% confidence interval of progression free survival at the 4-month
Objective response rateAt every 2nd cycles until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 1 year (every cycle is 28 days)complete response (CR) or partial response (PR) by RANO criteria
Disease control rateAt every 2nd cycles until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 1 year (every cycle is 28 days)complete response (CR), partial response (PR) or stable disease (SD) by RANO criteria
Overall survivaluntil time point of patients' death up to 1 yearPeriod from the date of the drug administration to the time point of patient's death

Other

MeasureTime frameDescription
Pharmacokinetic parameters - KeFrom screening visit to end of treatment visit (time of progressive disease or 1 year)Elimination rate constant by dose level
Pharmacokinetic parameters - T½From screening visit to end of treatment visit (time of progressive disease or 1 year)Half-life by dose level
ImmunogenicityFrom screening visit to end of treatment visit (time of progressive disease or 1 year)Presence anti-drug antibody (ADA)
DCE-MRIScreening visit, on Day8 and Day 15 of cycle 1, Day 28 of every 2nd cycle (1 cycle is 28 days, up to 1 year)Blood flow parameter - iAUC, K-trans
Change in concentration of serum angiogenic factor or receptorFrom screening visit to end of treatment visit (time of progressive disease or 1 year)VEGF, placental growth factor \[PLGF\], soluble vascular endothelial growth factor receptor \[sVEGFR\]-2, sVEGFR-1, etc.
Pharmacokinetic parameters - CmaxFrom screening visit to end of treatment visit (time of progressive disease or 1 year)Maximum concentration of drug by dose level
Pharmacokinetic parameters - CminFrom screening visit to end of treatment visit (time of progressive disease or 1 year)Minimum concentration of drug by dose level
Pharmacokinetic parameters - AUC0-tFrom screening visit to end of treatment visit (time of progressive disease or 1 year)Area under the curve from baseline to each timepoint by dose level
Pharmacokinetic parameters -TmaxFrom screening visit to end of treatment visit (time of progressive disease or 1 year)Time of Cmax by dose level
Pharmacokinetic parameters - CLFrom screening visit to end of treatment visit (time of progressive disease or 1 year)Clearance by dose level
Pharmacokinetic parameters - VdFrom screening visit to end of treatment visit (time of progressive disease or 1 year)Volume of distribution by dose level

Countries

Australia, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026