AFGB2: Antisecretory Factor Glioblastoma Phase 2
Study Details
Study Description
Brief Summary
This is a randomised, double blinded and multiple center , Phase 2 study in patients with newly diagnosed glioblastoma. Participants will receive an egg powder enriched for antisecretory factor (AF), Salovum, or a placebo egg powder daily from 2 days before concomitant radio-chemo therapy or chemotherapy until 14 days after finalisation plus during adjuvant chemotherapy.The primary aims of are overall survival at 6 and 12 months after diagnosis
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
Phase 2/Phase 3 |
Detailed Description
Glioblastoma (GB) is the most common primary brain tumor and also has the worst prognosis with a mean survival time below 1 year and a 5-year survival rate of less than 2%. AF is a 41kilodalton endogenous and essential protein with antisecretory and anti-inflammatory effects. Endogenous AF activity increases after exposure to bacterial toxins and endogenous triggers of inflammation. The active amino-terminal portion of AF has been synthesized as a 16 amino acid peptide (AF-16) and has been used in animal experimental studies. Salovum® is a product based on egg yolk powder B221® and contains high levels of AF. Salovum® is classified as food for special medicinal purposes (FSMP) by the European Union an din other countries.
Many tumors show elevated interstitial fluid pressure (IFP) compared to the surrounding tissue due to vascular leakage, providing a barrier for drug uptake in solid tumors, as well as poor perfusion, resulting in hypoxia and relative resistance to radiochemotherapy.
AF-16 was reported to significantly reduce the IFP in xenotransplanted human glioblastoma by inhibiting an ionic pump, NKCC1, in the tumor tissue. Both Salovum® and AF-inducing specific processed cereals (SPC) prolonged survival in the same models. Systemic temozolomide treatment combined with AF inducing SPC completely blocked tumor growth in GBM xenografts. Likewise, SPC treatment abrogated 90% of pre-established syngeneic tumors in immune competent animals.
Intratumoral delivery of AF-16 potentiated the effect of intratumoral temozolomide in an experimental model of glioblastoma.
Mechanistically, it remains unclear whether AF's effect in tumor models is mediated through decrease of IFP and/or immunomodulation. Also, an effect on the complement system through modulation of circulating complement complexes with proteasome units has been proposed.
Salovum® has been administered to patients with various diseases as, inflammatory bowel disease, Mb Ménière and mastitis and traumatic brain injury without signs of any adverse effects.
In a completed phase1-2 trial in participants with primary gliobalstoma the add on of Salovum during concomitant radiochemotherapa was considered safe and feasible.
The current study is aimed at assessing the efficacy of Salovum in a RCT (randomised controlled trail).
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Active Comparator: Salovum Salovum, an egg yolk powder will be orally at dose of 11 g 3 times daily. |
Dietary Supplement: Salovum
Salovum is an eggyolkpowder derived from hens fed with SPC (specially processed cereals) and contains increased amounts of the endogenous protein antisecretory factor.
Other Names:
|
| Placebo Comparator: Placebo Placebo, an egg yolk powder will be orally at dose of 11 g 3 times daily. |
Dietary Supplement: Placebo egg yolk powder
Egg yolk powder derived from hen fed with normal feed.
|
Outcome Measures
Primary Outcome Measures
- Overall survival [up to 12 months from primary surgery]
Survival
Secondary Outcome Measures
- Progress free survival at 6 and 12 months [At 6 and 12 months from primary surgery]
Progress free survival as a compound assessment by a multidisciplinary conference (MDC)
Other Outcome Measures
- Cognitive function [up to 1 year]
Assessed by Montreal Cognitive Assessment (MoCA)
- Neurological function [up to 1 year]
Assessed by Neurologic Assessment in Neuro-Oncology (NANO) scale
- QOL Assessed by European Organization of Research and Treatment of Cancer (EORTC) quality of life questionnaire (QLQ) C30 [up to 1 years]
Assessed by European Organization of Research and Treatment of Cancer (EORTC) quality of life questionnaire (QLQ) C30 questionnaire
- quality of life (QOL) assessed by brain cancer module (BN20) questionnaire [up to 1 years]
Assessed by brain cancer module (BN20) questionnaire
- Performance Assessed by Eastern Oncology Cooperative Group (ECOG) performance scale [up to 1 year]
Assessed by Eastern Oncology Cooperative Group (ECOG) performance scale
Eligibility Criteria
Criteria
Inclusion Criteria:
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Pathology verified glioblastoma or astrocytoma grade 4
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Age 18-75 years
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Surgical treatment-resection.
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Scheduled concomitant radiochemotherapy, or only chemotherapy.
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Informed consent
Exclusion Criteria:
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No informed consent
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Egg yolk allergy
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Only surgical biopsy
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Only radiotherapy
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Skåne University Hospital | Lund | Sweden | 22185 |
Sponsors and Collaborators
- Peter Siesjö
- Lund University
Investigators
- Study Chair: Charlotte Edwardsson, Skane University Hospital
- Study Chair: Erik Ehinger, MD, Skane University Hospital
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- FPAFGB2ver6