The International Collaborative Animal Study of Mobile Phone Radiofrequency Radiation Carcinogenicity and Genotoxicity: The Japanese Study

AI: Melanie Research RF Safe Research Library Jan 1, 2026 REASSURANCE MEDIUM

This international collaborative animal study (Japanese arm) evaluated carcinogenicity and genotoxicity in male Sprague Dawley rats exposed long-term to 900 MHz CDMA-modulated RF-EMFs at 4 W/kg whole-body SAR. The abstract reports no statistically significant increases in neoplastic or non-neoplastic lesions in major organs and no evidence of genotoxicity on comet or micronucleus testing. The authors conclude the findings provide strong evidence of no reproducible carcinogenic or genotoxic effects under the studied conditions.

Key points

Male Sprague Dawley rats were exposed to 900 MHz CDMA-modulated RF-EMFs at a whole-body SAR of 4 W/kg.
Exposure occurred 18 hours 20 minutes daily for 2 years as part of a carcinogenicity assessment.
The abstract reports no statistically significant increases in neoplastic or non-neoplastic lesions in major organs including brain, heart, and adrenal glands.
Genotoxicity testing (alkaline comet and micronucleus assays) reportedly found no evidence of DNA damage or chromosomal aberrations.
A 28-day preliminary toxicity study was included as part of the overall study components.
The RF-exposed group reportedly had higher survival, attributed by the authors to lower body weight and food consumption.
The study states it followed OECD guidelines and Good Laboratory Practice and was jointly planned and executed by Japan and Korea.

Referenced studies & papers

Relevant papers in OpenMel

Source: Open original

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