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Passardi A, Rapposelli IG, Scarpi E, Sullo FG, Bartolini G, Neri E, Ghigi G, Tontini L, Ercolani G, Monti M, Ruscelli S, Matteucci L, Valgiusti M, Frassineti GL, Romeo A. Multimodal Treatment with GEMOX Plus Helical Tomotherapy in Unresectable Locally Advanced Pancreatic Cancer: A Pooled Analysis of Two Phase 2 Studies. Biomolecules 2021; 11:biom11081200. [PMID: 34439866 PMCID: PMC8393939 DOI: 10.3390/biom11081200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/29/2021] [Accepted: 08/09/2021] [Indexed: 12/29/2022] Open
Abstract
In locally advanced pancreatic cancer (LAPC), the combination of chemotherapy and radiotherapy is a widely used treatment option. We performed a pooled analysis, including an exploratory analysis for prognostic and predictive factors, of two phase 2 trials including 73 patients with LAPC, treated with gemcitabine and oxaliplatin (GEMOX) and hypofractionated tomotherapy. With a median follow-up of 36 months (range 1–65), median progression-free (PFS) and overall survival (OS) were 10.2 (95% confidence interval [CI] 7.8–13.2) and 14.3 (95% CI 12.0–18.1) months, respectively. The overall resectability rate was 23.3% (95% CI 13.6–33.0), and the R0 resection rate was 13.7% (95% CI 5.8–21.6). In the multivariate analysis, ECOG performance status (PS) 0 and low levels of CA 19–9 were associated with improved OS and PFS. Concerning OS, log(CA19–9) resulted in a hazard ratio (HR) of 1.20 (95% CI 1.02–1.42), p = 0.027. For ECOG PS 0, HR was 1.00; for PS 1, HR was 2.69 (95% CI 1.46–4.96); for PS 2, HR was 4.18 (95% CI 0.90–19.46); p = 0.003. Low CA19–9 levels were also predictive for resection, with an odds ratio of 0.71 (95% CI 0.52–0.97), p = 0.034. In conclusion, GEMOX and hypofractionated radiotherapy is a treatment option in LAPC. Further studies are needed to identify differences in tumor biology, which may help to predict resectability and prognosis.
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Affiliation(s)
- Alessandro Passardi
- Department of Medical Oncology, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (A.P.); (F.G.S.); (G.B.); (M.M.); (S.R.); (L.M.); (M.V.); (G.L.F.)
| | - Ilario Giovanni Rapposelli
- Department of Medical Oncology, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (A.P.); (F.G.S.); (G.B.); (M.M.); (S.R.); (L.M.); (M.V.); (G.L.F.)
- Correspondence: ; Tel.: +39-0543-739100
| | - Emanuela Scarpi
- Unit of Biostatistics and Clinical Trials, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy;
| | - Francesco Giulio Sullo
- Department of Medical Oncology, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (A.P.); (F.G.S.); (G.B.); (M.M.); (S.R.); (L.M.); (M.V.); (G.L.F.)
| | - Giulia Bartolini
- Department of Medical Oncology, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (A.P.); (F.G.S.); (G.B.); (M.M.); (S.R.); (L.M.); (M.V.); (G.L.F.)
| | - Elisa Neri
- Radiotherapy Unit, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (E.N.); (G.G.); (L.T.); (A.R.)
| | - Giulia Ghigi
- Radiotherapy Unit, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (E.N.); (G.G.); (L.T.); (A.R.)
| | - Luca Tontini
- Radiotherapy Unit, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (E.N.); (G.G.); (L.T.); (A.R.)
| | - Giorgio Ercolani
- General and Oncologic Surgery Unit, Morgagni-Pierantoni Hospital, AUSL Romagna, 47121 Forlì, Italy;
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy
| | - Manlio Monti
- Department of Medical Oncology, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (A.P.); (F.G.S.); (G.B.); (M.M.); (S.R.); (L.M.); (M.V.); (G.L.F.)
| | - Silvia Ruscelli
- Department of Medical Oncology, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (A.P.); (F.G.S.); (G.B.); (M.M.); (S.R.); (L.M.); (M.V.); (G.L.F.)
| | - Laura Matteucci
- Department of Medical Oncology, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (A.P.); (F.G.S.); (G.B.); (M.M.); (S.R.); (L.M.); (M.V.); (G.L.F.)
| | - Martina Valgiusti
- Department of Medical Oncology, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (A.P.); (F.G.S.); (G.B.); (M.M.); (S.R.); (L.M.); (M.V.); (G.L.F.)
| | - Giovanni Luca Frassineti
- Department of Medical Oncology, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (A.P.); (F.G.S.); (G.B.); (M.M.); (S.R.); (L.M.); (M.V.); (G.L.F.)
| | - Antonino Romeo
- Radiotherapy Unit, IRCCS Istituto Romagnolo Per lo Studio dei Tumori “Dino Amadori”—IRST, 47014 Meldola, Italy; (E.N.); (G.G.); (L.T.); (A.R.)
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