A Clinical Trial Evaluating the Efficacy of Valganciclovir in Glioblastoma Patients (VIGAS2)
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|ClinicalTrials.gov Identifier: NCT04116411|
Recruitment Status : Recruiting
First Posted : October 4, 2019
Last Update Posted : September 13, 2021
|Condition or disease||Intervention/treatment||Phase|
|Glioblastoma Multiforme||Drug: Valganciclovir Tablets Drug: Temozolomide 120 mg Radiation: Radiotherapy 60 Gy Drug: Placebo oral tablet||Phase 2|
Adult patients will either be randomized to standard treatment (temozolomide and radiation therapy) + placebo tablets or to standard treatment + valganciclovir. Patients are randomized using 1 to 1 distribution of the patients between the treatment groups and are stratified according to methylation status of the MGMT promoter; equal proportion of patients are included in each group. A maximum of 30% of patients with methylated MGMT promoter are allowed into the study (to harmonise with current data used for statistical power calculation), as MGMT promotor methylation status is prognostic for patient survival. Patients must enter the study within 10 weeks after surgery.
Full dose treatment with 900mgs of Valganciclovir is given twice daily for 6 weeks, thereafter 900 mgs daily during 98 weeks (total treatment of 24 months). Valganciclovir is available in 450 mg tablets. The dose of Valganciclovir will be adjusted according to renal function.
This study will be performed in compliance with the protocol, ICH-GCP, the declaration of Helsinki and applicable Swedish regulatory requirements.
The study discontinuation criteria are as follows:
- Withdrawal of consent
- An adverse event which requires discontinuation of the trial medication or results in
- inability to continue to comply with trial procedures
- Disease progression which results in inability to continue to comply with trial
- Major Protocol deviations
- Exclusion criteria met
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||220 participants|
|Intervention Model:||Parallel Assignment|
|Intervention Model Description:||A multicenter randomized double-blinded controlled phase 2 study evaluating the efficacy of valganciclovir as add-on therapy in glioblastoma patients. Patients will receive either placebo or valganciclovir according to a randomisation list, blinded to the sponsor and study team. Seven centers are aimed to include patients once approval is received for each respective study center.|
|Masking:||Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)|
|Masking Description:||VIGAS 2 is conducted under a randomised double blinded protocol. The study team and the patients are blinded to the randomisation list. Randomisation is performed by the contracted Clinical Cancer Center Unit at the Karolinska University Hospital by an unblinded person, Claudia Maes who holds responsibility to select out number codes for coded cans of the study drug. Claudia Maes is unrelated to the sponsor and the study team.|
|Official Title:||A Multicenter Randomized Double-blinded Controlled Phase 2 Study Evaluating the Efficacy of Valganciclovir as add-on Therapy in Glioblastoma Patients|
|Actual Study Start Date :||September 4, 2019|
|Estimated Primary Completion Date :||August 31, 2024|
|Estimated Study Completion Date :||August 31, 2024|
Placebo Comparator: Placebo
Patients will receive placebo tablets with similar appearance as the active drug. Patients receive two 450 mg tablets twice daily taken per orally for 6 weeks, thereafter two 450 mg tablet once daily for an additional 22.5 months; a total treatment time of 24 months.
Drug: Temozolomide 120 mg
Radiation: Radiotherapy 60 Gy
Other Name: Radiation
Drug: Placebo oral tablet
Placebo treatment of glioblastoma
Other Name: Placebos
Active Comparator: Valganciclovir
Patients will receive valganciclovir tablets with similar appearance as the placebo tablets. Patients receive two 450 mg valganciclovir tablets twice daily taken per orally for 6 weeks, thereafter two 450 mg valganciclovir tablets once daily for an additional 22.5 months; a total treatment time of 24 months.
Drug: Valganciclovir Tablets
Valganciclovir treatment of glioblastoma
Drug: Temozolomide 120 mg
Radiation: Radiotherapy 60 Gy
Other Name: Radiation
- Impact of valganciclovir on median overall survival of glioblastoma patients [ Time Frame: Study closure at 30 months follow up. Survival analyses will be analysed at 12 and 24 months. ]Median overall survival will be analyzed using Cox regression analysis and presented by Kaplan-Meier graphs. Proportion of patients alive at 12 or 24 months, respectively, in each study arm and will be analyzed using Fisher exact test.
- Baseline and demographic data [ Time Frame: At 30 months follow up ]All baseline and demographic data will be analysed using descriptive statistics such as mean, medians, standard deviations etc. for all variables which are continuous. Variables that are categorical will be analysed using frequency tables with number of patients and percent. All these analyses will be divided by treatment group. No formal hypothesis testing will be performed for the demographic and baseline variables.
- Progression free survival at 12 and 24 months [ Time Frame: 12 and 24 months ]
Tumor recurrence is estimated as clinical and radiological determination (RANO criteria and NANO criteria). The progression free survival will be calculated as the (date of progression - date of first dose of study drug). Patients who are alive without progression at end of follow-up will be censored. Patients who are withdrawn from the study during the follow-up for other reason than dead will be censored at time of withdrawal. Patients who dies for any reason during the follow-up without any progression will be classified as progression using date of death as date of progression. Patients are analysed for stable disease, surgical interventions and treatment failure.
Progression free survival will be analysed using Cox regression analysis and presented by Kaplan-Meier graphs. The difference in 12 and 24 months progression free survival rates for patients treated with valganciclovir or placebo will be analysed using Fisher exact test.
- Incidence of valganciclovir treatment related adverse events [ Time Frame: 30 months follow up time ]Number of patients with treatment related adverse events, as assessed by CTCv4. Vital signs: blood pressure (mmHg), heart rate (beats per minute), temperature (degree Celsius), clinical laboratory (total blood counts and differential analyses, liver transaminases and bilirubin, and renal function (creatinine and GFR) and physical exam. Adverse events will be analyzed using a chi-square test without continuity correction.
- Health related Quality of Life using EORTC QLQ30 module [ Time Frame: Base line and at every 3 months until 24 months follow up. ]Quality of Life measures are recoreded according to EORTC QLQ30 and BN20 module, that are validated for brain tumor patients and measured as a unit of scale. There will be a comparison of scores for patients receiving valganciclovir versus placebo treatment. These are standard tools for assessing patients reported quality of Life along time during treatment. The change from baseline will be analysed using Wilcoxon Rank Sum test.
- Cognitive functions [ Time Frame: up to 24 months ]MMSE (Mini Mental State Examination) tests are made with a questionary form and will be assesses every three months during the study. The change from baseline will be analysed using Wilcoxon Rank Sum test.
- Health related Quality of Life using the EORTC BN20 module [ Time Frame: Base line and at every 3 months until 24 months follow up. ]Quality of Life measures are recoreded according to BN20 module, that are validated for brain tumor patients and measured as a unit of scale. There will be a comparison of scores for patients receiving valganciclovir versus placebo treatment. These are standard tools for assessing patients reported quality of Life along time during treatment. The change from baseline will be analysed using Wilcoxon Rank Sum test.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04116411
|Contact: Cecilia Soderberg-Naucler, MD, PhDfirstname.lastname@example.org|
|Contact: Afsar Rahbar, PhDemail@example.com|
|SE01 Karolinska University Hospital||Recruiting|
|Solna, Stockholm, Sweden, SE17164|
|Contact: Giuseppe Stragliotto, MD, PhD +46723161644 firstname.lastname@example.org|
|Contact: Eva Hamberg, Nurse +46-708776885 email@example.com|
|Principal Investigator: Giuseppe Stragliotto, MD, PhD|
|Principal Investigator:||Giuseppe Stragliotto, MD, PhD||Karolinska University Hospital|