Nej, det görs inte några nya studier om saken.
Den senaste stora som avslutades var en flera decennier lång studie, varav cyklamats eventuella cancerpåverkan studerades i 24 år, och slutsatsen blev
Citat:
Commencing in 1970, cyclamate was administered to cynomolgus, rhesus, and African green monkeys in the diet at 100 mg/kg or 500 mg/kg, 5 times per week from birth for up to 24 years. Twenty-one animals were used in this experiment. Seven died during the study without any tumors, and the survivors were in good health until the study was terminated in 1994. The remaining 8 animals in the 100 mg/kg group and 6 in the 500mg/kg were euthanized and necropsied. Kyphosis of the spine was observed in 3 monkeys. Malignant tumors were diagnosed in three animals at age 24; one was a well-differentiated prostate carcinoma in the 100mg/kg group and the other two were a metastatic colon adenocarcinoma and a hepatocellular carcinoma with lung metastasis which occurred in the 500mg/kg group (Table 3). Benign tumors, i.e., an adenoma of the thyroid gland and a leiomyoma of the uterus, were found in two females at autopsy. Testicular atrophy with evidence of decreased spermatogenesis was observed in 5 of 7 males in the 500mg/kg cyclamate group, and in 3 of 4 males in the 100 mg/kg group. Terminal measurement of cyclohexylamine concentrations showed that three of the cyclamate monkeys were high metabolic converters with plasma levels comparable to that produce testicular atrophy in rats. However, only one of the three high converters showed evidence of testicular atrophy.20)
The findings of this study suggest that lifetime exposure to high doses of cyclamate accelerates the process of age-related testicular atrophy in three species of animals. Although the tumor incidence in cyclamate monkeys was higher than the overall spontaneous tumor rate in the breeders and normal controls in the 35 years history of this monkey colony, the three cases of different types of malignant tumor in old animals are inconclusive regarding the carcinogenic potential of cyclamate.
The lack of carcinogenicity of saccharin and cyclamate following investigation for 24 years is of major significance in these series of experiments.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3665368/
Testikelatrofi verkar vara tänkbar, men då talar vi livslånga vansinnesdoser, och i sådana fall finns det många saker som är harmlösa vid normalt bruk som orsakar problem. Tre av dom överlevande aporna hade cancer, men att man får cancer när man är gammal är inte ovanligt i vilket fall som helst.