On 2015 Jul 28, Christina Niederstadt commented:

The authors of this article are not very accurate regarding their citation of the available literature and their summaries of cited papers. E.g. the following paragraph: "Another controversial approach has involved the immunization of RCC patients with hybrids of DC fused to autologous RCC tumour cells. Early phase I trial results, reported by Kugler et al. [29], described tumour regressions in seven of 17 RCC patients using allogenic monocyte-derived mature DC fused in an electric field to autologous tumour cells. However, a follow-up phase II study failed to confirm these promising early results [30]."

Reference [29]: Kugler A, Stulher G, Walden P, et al. Regression of human metastatic renal cell carcinoma after vaccination with tumor cell-dendritic cell hybrids. Nat Med. 2000;6:332–6. [PMID: 10700237] Reference [30]: Kugler A, Stuhler G, Walden P, et al. Retraction: regression of human metastatic renal cell carcinoma after vaccination with tumor cell-dendritic cell hybrids. Nat Med. 2003;9:1221. [PMID: 12949529]

The denotation "a follow-up phase II study" seems to be a rather inappropriate description of a retraction notice!

On 2015 Jul 28, Christina Niederstadt commented:

The authors of this article are not very accurate regarding their citation of the available literature and their summaries of cited papers. E.g. the following paragraph: "Another controversial approach has involved the immunization of RCC patients with hybrids of DC fused to autologous RCC tumour cells. Early phase I trial results, reported by Kugler et al. [29], described tumour regressions in seven of 17 RCC patients using allogenic monocyte-derived mature DC fused in an electric field to autologous tumour cells. However, a follow-up phase II study failed to confirm these promising early results [30]."

Reference [29]: Kugler A, Stulher G, Walden P, et al. Regression of human metastatic renal cell carcinoma after vaccination with tumor cell-dendritic cell hybrids. Nat Med. 2000;6:332–6. [PMID: 10700237] Reference [30]: Kugler A, Stuhler G, Walden P, et al. Retraction: regression of human metastatic renal cell carcinoma after vaccination with tumor cell-dendritic cell hybrids. Nat Med. 2003;9:1221. [PMID: 12949529]

The denotation "a follow-up phase II study" seems to be a rather inappropriate description of a retraction notice!