Parareg blev også undersøgt hos 46 patienter med hypercalcæmi, heraf 29 med kræft i biskjoldbruskkirtlerne og 17 med primær hyperparatyreoidisme, som ikke kunne få biskjoldbruskkirtlerne fjernet, eller hvor kirurgisk fjernelse af biskjoldbruskkirtlerne ikke var effektiv.
Parareg has also been studied in a study involving 46 patients with hypercalcaemia, including 29 with parathyroid carcinoma and 17 with primary hyperparathyroidism who could not have their parathyroid glands removed or in whom surgery to remove the parathyroid glands was not effective.