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Dose Confirmation Study of Cotara for the Treatment of Glioblastoma Multiforme at First Relapse

Open-label, Dose Confirmation Study of Interstitial 131I-chTNT-1/B MAb (Cotara®) for the Treatment of Glioblastoma Multiforme (GBM) at First Relapse

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00677716
Enrollment
41
Registered
2008-05-14
Start date
2007-07-31
Completion date
2011-11-30
Last updated
2014-04-24

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

Conditions

Glioblastoma Multiforme

Keywords

glioblastoma multiforme, GBM, brain cancer, Cotara, radioactive isotope, monoclonal antibody, Glioblastoma multiforme at first relapse

Brief summary

Cotara® is an experimental new treatment that links a radioactive isotope (iodine 131) to a targeted monoclonal antibody. This monoclonal antibody is designed to bind tumor cells and deliver radiation directly to the center of the tumor mass while minimizing effects on normal tissues. Cotara® thus literally destroys the tumor from the inside out. This may be an effective treatment for glioblastoma multiforme, a malignant type of brain cancer.

Detailed description

To confirm the safety and tolerability of the Maximum Tolerated Dose (MTD) of 131I-chTNT-1/B MAb given as a single interstitial infusion in patients with glioblastoma multiforme at first relapse. To estimate overall survival, progression free survival and proportion of patients alive at six months after treatment.

Interventions

DRUG131I-chTNT-1/B MAb (Cotara)

Given as a single interstitial infusion over approximately 25 hours at a dose of 2.5 mCi/cc.

Sponsors

Peregrine Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Histologically confirmed GBM * Clinical Target Volume between 5 and 60 cc (inclusive) * 18 to 75 years old (inclusive) * Karnofsky Performance Status ≥ 70 percent * If on steroids dose (± 4mg/day) must be stable for at least two weeks prior to screening/baseline visit. If not on steroids for two weeks prior to screening/baseline visit are allowed * Adequate hematology * Adequate renal function * Adequate liver function

Exclusion criteria

* Infratentorial tumor(s), tumor(s) that communicate with the ventricles or intraventricular disease * Bilateral non-contiguous gadolinium enhancing tumor * Diffuse disease (i.e., any satellite lesions less than 1.5 cm from anticipated location of any catheter tip or less than two satellite lesions) * Known or suspected allergy to study medication or iodine * Surgical procedure within four weeks of baseline * More than one prior chemotherapy regime or chemotherapy within four weeks (nitrosourea-based within six weeks) of baseline * Radiation therapy within four weeks of baseline * Investigational agent within last 30 days * Previous treatment with any chimeric monoclonal antibody * HIV positive * Evidence of active hepatitis

Design outcomes

Primary

MeasureTime frame
To confirm the safety and tolerability of the maximum tolerated dose

Secondary

MeasureTime frame
To estimate overall survival, progression free survival and proportion of patients alive at six months after treatment.

Countries

India, United States

Outcome results

None listed

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