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S351

ESTRO 36 2017

_______________________________________________________________________________________________

11]. This checklist consists of minimum criteria that

cancer clinical trials should incorporate to provide reliable

HRQoL outcomes. The 11 items are categorized into

conceptual,

measurement,

methodology

and

interpretation domains. All included studies were scored

for adherence to the checklist. Each item that met the

criteria received 1 point with a maximum of 11 points.

Outcomes range from ‘probably robust’ (8 – 11) to ‘very

limited’ (0 – 4).

Results

From 2005-2015, out of 225 publications reviewed, 16 LA-

NSCLC clinical trials (represented in 25 articles)

incorporated HRQoL endpoints. Radiotherapy was

evaluated, in combination with surgery, systemic therapy

or with medication aiming to reduce adverse radiotherapy

effects, and impact on HRQoL was assessed.

None of the studies had a methodological quality below 4

(‘very limited’). The average quality score of HRQoL

reporting in all studies was 7.875, with 13 studies

considered to be of high quality (‘probably robust’), versus

3 studies of average quality (‘limited robust’). No studies

fulfilled all criteria.

Particularly, details on a priori hypothesis (n=16) and

details on missing data (n=9) were missing. Additionally,

clinical significance rather than simple statistical

significance was often unaddressed (n=13).

Conclusion

Qualitative reporting of HRQoL outcomes in scientific

articles is a crucial aspect to adequately interpret HRQoL

results, with the aim to facilitate daily clinical decision

making and support therapy policies. In this review, only

the minority of clinical trials fulfilled the minimum criteria

for adequate HRQoL reporting. Due to the limited

methodological quality and especially the fact that certain

crucial aspects of HRQoL data reporting are lacking in the

studies, good interpretation of HRQoL data remains

difficult.

Poster: Clinical track: Upper GI (oesophagus, stomach,

pancreas, liver)

PO-0679 Role of Chemoradiation Therapy as an Initial

Treatment for Esophageal Carcinoma: A Meta-Analysis

M. MA

1

, X.S. Gao

1

, X. Gu

1

1

Peking University First Hospital, Radiation Oncology,

Beijing, China

Purpose or Objective

This study was aimed to compare the therapeutic

efficacy of definitive chemoradiotherapy(dCRT) and

esophagectomy as initial treatment for resectable

oesophageal cancer by meta-analysis.

Material and Methods

Databases of Pubmed and Web of Science were

systematically searched to identify relevant studies.

Combined odds ratio(OR) and 95% confidential interval (CI)

were computed to assess the comparison effects.

Results

A total of thirteen studies (2 RCTs and 11 non-RCTs) with

2071 patients were identified, consisting of the dCRT arm

(n=869) and surgery arm (n=1202). There was no

statistically significant benefit on 1-year (OR 1.23, 0.67 to

2.24; P=0.50), 3-year (OR 1.022, 0.795 to 1.312; P=0.87)

and 5-year overall survival (OR 1.05, 0.82 to 1.35; P = 0.68)

for surgery compared with dCRT(Fig.A). As for disease-

free survival (DFS). dCRT is relatively inferior than surgery

in short term result (OR for 3-year PFS: 1.37, 1.03 to 1.82;

p=0.03) but is equivocal with surgery in long-term result

(OR for 5-year PFS: 1.06, 0.79 to 1.42; p=0.70).

Additionally, patients with positive lymph node could

benefit on 5-year OS from dCRT (OR 0.238, 0.079 to 0.717;

P=0.011)(Fig.B). Subgroup analysis for Asian and North

American patients indidates that surgery is superior on 2-

year OS as compared with dCRT among North American

patients(Fig.C). OR of 2-year OS for Asian patients and

North American patients were 1.001, (95% CI 0.693 to

1.446; P=0.996) and 1.552, (95% CI 1.035 to 2.238;

P=0.033), repectively. Furthermore, we analysed 5 studies

consisting a total of 1202 patients which focused on stage

I esophageal cancer, no statistically difference was found

between dCRT and surgery on 2-year OS (OR 1.279, 0.704

to 2.35; p=0.419)(Fig.D).

Conclusion

In summary, therapeutic effects of dCRT as the initial

treatment is similar to that of surgery on long-term

survivals and it remains equivalent with surgical resection

for patients with stage I esophageal cancer. Patients with

positive lymph node may benefit from dCRT. More

randomized trials are needed to confirm our results.

PO-0680 SBRT for locally advanced pancreatic cancer

(LAPC): a retrospective multi-institutional experience

G. Macchia

1

, A. Arcelli

2

, A.G. Morganti

2

, F. Bertini

2

, A.

Guido

2

, L. Fuccio

3

, F. Dalla Torre

1

, S. Cilla

4

, V. Scotti

5

,

M.E. Rosetto

6

, I. Djan

7

, S. Parisi

8

, G.C. Mattiucci

9

, V.

Valentini

9

, M. Fiore

10

, P. Bonomo

11

, A. Bacigalupo

12

, R.M.

Niespolo

13

, P. Gabriele

14

, F. Deodato

1

1

Fondazione di Ricerca e Cura “Giovanni Paolo II”,

Radiotherapy Unit, Campobasso, Italy

2

University of Bologna, Radiation Oncology Center-

Department of Experimental- Diagnostic and Specialty

Medicine - DIMES, Bologna, Italy

3

University of Bologna, Department of Medical and

Surgical Sciences - DIMEC, Bologna, Italy

4

Fondazione di Ricerca e Cura “Giovanni Paolo II”,

Medical Physic Unit, Campobasso, Italy

5

Radiosurgery Center Malzoni, Radiosurgery Center,

Agropoli, Italy

6

Ospedale Belcolle, Radiotherapy Unit, Viterbo, Italy

7

Medical Faculty- University of Novi Sad, Institute of

Oncology Vojvodina- Sremska Kamenica, Serbia, Serbia

8

Ospedale Casa Sollievo della Sofferenza San Giovanni

Rotondo, Radiotherapy Unit, Foggia, Italy

9

Policlinico Universitario “A. Gemelli”- Università

Cattolica del Sacro Cuore, Department of Radiotherapy,

Rome, Italy

10

Università Campus Biomedico, Department of

Radiotherapy, Rome, Italy

11

Azienda Ospedaliero Universitaria Careggi AOUC,

Dpartment of Radiotherapy, Firenze, Italy

12

IRCCS AOU San Martino– IST, Department of

Radiotherapy, Genova, Italy

13

Azienda Ospedaliera San Gerardo, Radiotherapy Unit,

Monza, Italy

14

Fondazione del Piemonte per l'Oncologia FPO- IRCCS

Candiolo, Department of Radiotherapy, Torino, Italy