Undersøgelserne så på virkningen af Erbitux i tillæg til en behandlingskombination, der indeholdt enten irinotecan eller oxaliplatin. • Tre undersøgelser omfattede 2 199 patienter, hvis sygdom var blevet værre under tidligere behandling med irinotecan, oxaliplatin eller begge, eller som ikke kunne behandles med nogen af disse lægemidler.
For metastatic cancer of the colon or rectum, Erbitux was studied in five main studies: • two studies involved 1,535 patients who had not received chemotherapy before, looking at the effects of adding Erbitux to a treatment combination containing either irinotecan or oxaliplatin; • three studies involved 2,199 patients whose disease had got worse while they were on previous treatment including irinotecan, oxaliplatin or both, or who could not receive these medicines.