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Study on Low Dose Temozolomide Plus Metformin or Placebo in Patient With Recurrent or Refractory Glioblastoma

Efficacy and Safety of Low Dose Temozolomide Plus Metformin as Combination Chemotherapy Compared With Low Dose Temozolomide Plus Placebo in Patient With Recurrent or Refractory Glioblastoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03243851
Acronym
METT
Enrollment
81
Registered
2017-08-09
Start date
2016-11-21
Completion date
2020-12-31
Last updated
2021-09-09

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

Conditions

Glioblastoma

Keywords

Glioblastoma

Brief summary

A phase 2 clinical trial for the efficacy and safety of low dose Temozolomide plus metformin as combination chemotherapy compared with low dose Temozolomide plus placebo in patient with recurrent or refractory Glioblastoma

Detailed description

Studies will investigate the efficacy and safety of low dose Temozolomide with Metformin or placebo for the patients with recurrent or refractory Glioblastoma. The dosage of the Metformin will follow the domestically permitted dose to minimize side effects. The patients will be allocated randomly to arm 1(experimental) and arm 2(placebo controlled) and administered the investigational products for up to 6 cycle. Each cycle consists of 4 weeks. After 6 cycle(24 weeks), the patients will be checked progression and survival every 24 weeks up to 96 weeks.

Interventions

DRUGTemozolomide+Metformin

Low dose temozolomide+metformin for 24 weeks

DRUGTemozolomide+Placebo

Low dose temozolomide+placebo for 24 weeks

Sponsors

Saint Vincent's Hospital, Korea
CollaboratorOTHER
Incheon St.Mary's Hospital
CollaboratorOTHER
National Cancer Center, Korea
CollaboratorOTHER_GOV
Konkuk University Hospital
CollaboratorOTHER
Seoul National University Bundang Hospital
CollaboratorOTHER
Samsung Medical Center
CollaboratorOTHER
Seoul National University Hospital
CollaboratorOTHER
Asan Medical Center
CollaboratorOTHER
Ajou University School of Medicine
CollaboratorOTHER
Severance Hospital
CollaboratorOTHER
Chonnam National University Hospital
CollaboratorOTHER
Seoul St. Mary's Hospital
CollaboratorOTHER
Yong-Kil Hong
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Double blinded

Intervention model description

Arm 1 : Low dose temozolomide+metformin Arm 2 : Low dose temozolomide+placebo

Eligibility

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

Inclusion criteria

1. Progressive or recurrent Glioblastoma conformed by histopathological or radiological diagnosis. Progressive or recurrent Glioblastoma during or after standard therapy (Temozolomide after Temozolomide and radiation therapy; Stupp regimen) after histopathological diagnosis of Glioblastoma Recurrence or progression is diagnosed according to histopathological diagnosis or revised RANO(Response Assessment in Neuro-Oncology) criteria c 2. Karnofsky performance status(KPS) ≥ 60% 3. Age ≥ 19 years old 4. At least 4 weeks after operation or chemotherapy 5. Normal in hematological finding, liver and kidney function * Hematology ANC \> 1.500/mm³, Platelet \> 100,000/mm³, WBC \> 3×10\^9/L, Hemoglobin \> 9g/dL * Liver function Total Bilirubin level ≤ 1.5×ULN(in case of isolated hyperbilirubinemia ≤2.5 x ULN) AST / ALT \< 2.5×ULN * Renal function Serum creatinine ≤ 1.5mg/dL 6. Be informed of the nature of the study and obtained a written informed consent 7. A legal representative agrees to the trial when a subject is unable to communicate smoothly due to neurologic defect 8. If a fertile woman who has been confirmed negative to a urine or blood pregnancy test within 28 days prior to the trial

Exclusion criteria

1. Pregnant or breast feeding 2. Cancer history within 5 years excluding cancer in the skin cells and cervix 3. Active infections within two weeks 4. Leptomeningeal metastasis 5. Patients diagnosed with diabetes 6. Hypersensitive or intolerance to Metformin 7. Patients who are currently taking Metformin, sulfonylureas, thiazolidinediones, and insulin, regardless of reason 8. Other serious diseases or medical conditions that include : * Patients who suffer from unstable heart disease despite treatment. * Patients having a heart attack within 6 months prior to the start of trial * Patients who suffer from severe nerve or psychosis that includes dementia or strokes. * Patients with an uncontrolled infection * Patient with uncontrolled hypertension, congestive heart failure, unstable angina, or incomplete arrhythmia 9. Those who have participated in other clinical trials may not recover from the toxicity of the treatment.

Design outcomes

Primary

MeasureTime frameDescription
Comparison of progression-free survival obtained from progression-free survival curve24 weeksComparison of progression-free survival obtained from progression-free survival curve

Secondary

MeasureTime frameDescription
Response Rate4 weeks, 8 weeks, 16 weeks, 24 weeks thereafter every 24 weeks up to 96 weeksTumor Response Rate
Tumor control probability4 weeks, 8 weeks, 16 weeks, 24 weeks thereafter every 24 weeks up to 96 weeksTumor control probability
6 month progression free survival24 weeks6 month progression free survival
6 month overall survival24 weeks6 month overall survival
Assessment of the quality of life of cancer patients4 weeks, 8 weeks, 16 weeks, 24 weeksEORTC QLQ-C30 and EORTC QLQ-BN20

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026