Precision knockdown of EGFR gene expression using radio frequency electromagnetic energy

Evaluation of the EMulate Therapeutics Voyager's ultra-low radiofrequency energy in murine model of glioblastoma

BACKGROUND

Glioblastoma (GBM) presents as an aggressive brain cancer, notorious for its recurrence and resistance to conventional treatments. This study aimed to assess the efficacy of the EMulate Therapeutics Voyager®, a non-invasive, non-thermal, non-ionizing, battery-operated, portable experimental medical device, in treating GBM. Using ultra-low radiofrequency energy (ulRFE) to modulate intracellular activity, previous preliminary results in patients have been encouraging. Now, with a focus on murine models, our investigation seeks to elucidate the device's mechanistic impacts, further optimizing its therapeutic potential and understanding its limitations.

METHODS

The device employs a silicone over molded coil to deliver oscillating magnetic fields, which are believed to interact with and disrupt cellular targets. These fields are derived from the magnetic fluctuations of solvated molecules. Xenograft and syngeneic murine models were chosen for the study. Mice were injected with U-87 MG or GL261 glioma cells in their flanks and were subsequently treated with one of two ulRFE cognates: A1A, inspired by paclitaxel, or A2, based on murine siRNA targeting CTLA4 + PD1. A separate group of untreated mice was maintained as controls.

RESULTS

Mice that underwent treatments with either A1A or A2 exhibited significantly reduced tumor sizes when compared to the untreated cohort.

CONCLUSION

The EMulate Therapeutics Voyager® demonstrates promising potential in inhibiting glioma cells in vivo through its unique ulRFE technology and should be further studied in terms of biological effects in vitro and in vivo.

Low-frequency magnetic field therapy for glioblastoma: Current advances, mechanisms, challenges and future perspectives

BACKGROUND

Glioblastoma (GBM) is the most common malignant tumour of the central nervous system. Despite recent advances in multimodal GBM therapy incorporating surgery, radiotherapy, systemic therapy (chemotherapy, targeted therapy), and supportive care, the overall survival (OS) remains poor, and long-term survival is rare. Currently, the primary obstacles hindering the effectiveness of GBM treatment are still the blood-brain barrier and tumor heterogeneity. In light of its substantial advantages over conventional therapies, such as strong penetrative ability and minimal side effects, low-frequency magnetic fields (LF-MFs) therapy has gradually caught the attention of scientists.

AIM OF REVIEW

In this review, we shed the light on the current status of applying LF-MFs in the treatment of GBM. We specifically emphasize our current understanding of the mechanisms by which LF-MFs mediate anticancer effects and the challenges faced by LF-MFs in treating GBM cells. Furthermore, we discuss the prospective applications of magnetic field therapy in the future treatment of GBM. Key scientific concepts of review: The review explores the current progress on the use of LF-MFs in the treatment of GBM with a special focus on the potential underlying mechanisms of LF-MFs in anticancer effects. Additionally, we also discussed the complex magnetic field features and biological characteristics related to magnetic bioeffects. Finally, we proposed a promising magnetic field treatment strategy for future applications in GBM therapy.

An expanded safety/feasibility study of the EMulate Therapeutics Voyager™ System in patients with recurrent glioblastoma

Aim: The EMulate Therapeutics Voyager™ is a simple, wearable, home-use device that uses an alternating electromagnetic field to alter biologic signaling within cells. Objective: To assess the safety/feasibility of the Voyager in the treatment of recurrent glioblastoma (rGBM). Methods: In this study, patients with rGBM were treated with Voyager as monotherapy or in combination with standard chemotherapy at the Investigator's discretion. Safety was assessed by incidence of adverse events associated with the Voyager. Patients were followed until death. Results: A total of 75 patients were enrolled and treated for at least one day with the Voyager (safety population). Device-related adverse events were uncommon and generally did not result in interruption or withdrawal from treatment. There were no serious adverse events associated with Voyager. A total of 60 patients were treated for at least one month (clinical utility population). The median progression-free survival (PFS) was 17 weeks (4.3 months) in the Voyager only group (n = 24) and 21 weeks (5.3 months) in the Voyager + concurrent therapy group (n = 36). The median overall survival (OS) was 7 months in the Voyager only group and 9 months in the Voyager + concurrent therapy group. In patients treated with Voyager + concurrent therapy, the median OS for patients enrolled with their 1st or 2nd recurrence (n = 26) was 10 months, while in patients enrolled with their 3rd or 4th recurrence (n = 10) OS was 7 months. Conclusion: The data support the safety and feasibility of the Voyager for the treatment of rGBM. Further prospective study of the device is warranted. Trial Registration Number: NCT02296580 (ClinicalTrials.gov).

A feasibility study of the Nativis Voyager® device in patients with recurrent glioblastoma in Australia

Aim:

Evaluation of the Nativis Voyager^®, an investigational medical device, as monotherapy for recurrent glioblastoma (rGBM).

Materials & methods:

A total of 15 patients with rGBM were treated with one of two Voyager ultra-low radio frequency energy cognates: A1A or A2HU. Safety and clinical utility were assessed every 2–4 months.

Results:

Median overall survival was 8.04 months in the A1A arm and 6.89 months in the A2HU arm. No serious adverse events associated with Voyager were reported. No clinically relevant trends were noted in clinical laboratory parameters or physical exams.

Conclusion:

The data suggest that the Voyager is safe and feasible for the treatment of rGBM.

An early feasibility study of the Nativis Voyager® device in patients with recurrent glioblastoma: first cohort in US

Aim:

Evaluation of the Nativis Voyager^® device in patients with recurrent glioblastoma (rGBM).

Materials & methods:

Voyager is a noninvasive, nonthermal, nonionizing and portable investigational device which delivers ultra-low radio frequency energy (ulRFE^®) that uses a magnetic field to penetrate tissues to alter specific biologic functions within cells. Patients with rGBM were treated with Voyager alone (V) or Voyager in combination with standard of care (V + SoC). Safety and clinical utility were assessed every 2–4 months.

Results:

Data from the first 11 patients treated are reported here. Median progression-free survival was 10 weeks in the V arm and 16 weeks in the V + SoC arm. Median overall survival was 16 months in V arm and 11 months in the V + SoC arm. No serious adverse events associated with the device were reported.

Conclusion:

These data suggest that the Voyager is safe and feasible for the treatment of rGBM.