David Atallah

Prof. Dr. David Atallah

orcid

Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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20 November 2005 in Journal of Clinical Oncology
Verified
Journal Article
Closed access
RRRoman Rouzier
Roman Rouzier
LPLajos Pusztai
Lajos Pusztai
SDSuzette Delaloge
Suzette Delaloge
AGAna M. Gonzalez-Angulo
Ana M. Gonzalez-Angulo
FAFabrice Andre
Fabrice Andre
GHGabriel N. Hortobagyi
Gabriel N. Hortobagyi
Purpose: To combine clinical variables associated with pathologic complete response (pCR) and distant metastasis–free survival (DMFS) after preoperative chemotherapy (PC) into a prediction nomogram. Patients and Methods: Data from 496 patients treated with anthracycline PC at the Institut Gustave Roussy were used to develop and calibrate a nomogram for pCR based on multivariate logistic regression. This nomogram was tested on two independent cohorts of patients treated at the M.D. Anderson Cancer Center. The first cohort (n = 337) received anthracycline; the second cohort (n = 237) received a combination of paclitaxel and anthracycline PC. A separate nomogram to predict DMFS was developed using Cox proportional hazards regression model. Results: The pCR nomogram based on clinical stage, estrogen receptor status, histologic grade, and number of preoperative chemotherapy cycles had good discrimination and calibration in the training and the anthracycline-treated validation sets (concordance indices, 0.77, 0.79). In the paclitaxel plus anthracycline group, when the predicted pCR rate was less than 14%, the observed rate was 7.5%; for a predicted rate of ≥ 38%, the actual rate was 85%. For a predicted rate between 14% to 38%, the observed rates were 50% with weekly and 27% with 3-weekly paclitaxel. This indicates that patients with intermediate chemotherapy sensitivity benefit the most from the optimized schedule of paclitaxel. Patients unlikely to achieve pCR to anthracylines remain at low probability for pCR, even after inclusion of paclitaxel. The nomogram for DMFS had a concordance index of 0.72 in the validation set and outperformed other prediction tools (P = .02). Conclusion: Our nomograms predict pCR accurately and can serve as a basis to integrate future molecular markers into a clinical prediction model.

1 August 2003 in Journal of the American College of Surgeons
Verified
Journal Article
Closed access
PMPhilippe Morice
Philippe Morice
FJFranklin Joulie
Franklin Joulie
SCSophie Camatte
Sophie Camatte
DADavid Atallah
David Atallah
RRRoman Rouzier
Roman Rouzier
DCDamienne Castaigne
Damienne Castaigne
The purpose was to determine the factors influencing nodal involvement and topography of pelvic and paraaortic node involvement in ovarian carcinoma. Between 1985 and 2001, 276 women with epithelial ovarian carcinoma underwent systematic bilateral pelvic and paraaortic lymphadenectomy. The overall frequency of lymph node involvement was 44% (122 of 276). The frequency of pelvic and paraaortic metastases were 30% (82 of 276) and 40% (122 of 276), respectively. The frequency of lymph node metastases according to the stage of the disease (stages I, II, and III + IV) were: 20% (17 of 85), 40% (6 of 15), and 55% (99 of 176), respectively. In patients with stage IA, IB, and IC disease, the rates of nodal involvement were 13% (8 of 60), 33% (4 of 12), and 38% (5 of 13), respectively. None of 15 patients with stage IA grade 1 disease had nodal involvement. None of the 20 patients with mucinous tumors confined to the ovary(ies) (stage I disease) had nodal involvement. When paraaortic nodes were involved, the left paraaortic chain above the level of the inferior mesenteric artery was the most frequently involved site (70 patients, 63%). One of nine patients (11%) with a macroscopic stage I unilateral tumor and paraaortic involvement had contralateral metastases. Lymphadenectomy should be performed even in patients with stage IA disease. This procedure could be omitted in patients with mucinous apparent stage I disease and stage I grade 1 tumor. Lymphadenectomy should involve the whole pelvic and paraaortic chain up to the level of the left renal vein. A bilateral dissection should be performed even in cases of patients with a unilateral tumor.

1 December 2003 in Gynecologic Oncology
Verified
Journal Article
Closed access
CPChristophe Pomel
Christophe Pomel
DADavid Atallah
David Atallah
GBGuillaume Le Bouedec
Guillaume Le Bouedec
RRRoman Rouzier
Roman Rouzier
PMPhilippe Morice
Philippe Morice
JDJacques Dauplat
Jacques Dauplat

1 April 2003 in Annals of Oncology
Verified
Journal Article
Open access
PDF file
PMP. Morice
P. Morice
SCS. Camatte
S. Camatte
ARA. Rey
A. Rey
DADavid Atallah
David Atallah
CLC. Lhommé
C. Lhommé
DCD. Castaigne
D. Castaigne
Background: The aim of this study was to determine the prognostic factors for patients with advanced stage, low malignant potential ovarian tumour (LMPOT). Patients and methods: A retrospective review of 80 patients with serous LMPOT and peritoneal implants treated at or referred to our institution was carried out. Results: Sixty-five patients had non-invasive implants. Fifteen patients had invasive implants. Twenty-nine patients had stage II and 51 patients had stage III disease. Three patients died of evolutive invasive disease and four of complications of treatment. The only prognostic factor of progression to ‘evolutive invasive disease’ is the pathologic subtype of peritoneal implants. The 5-year rates of evolutive invasive disease in patients with non-invasive implants and invasive implants were 2% and 31%, respectively (P <0.002). Conclusions: In this series, the only prognostic factor for patients with advanced stage borderline tumour is the type of peritoneal implant. More patients died of the treatment’s complications than of the disease itself. The patients’ prognosis with non-invasive implants seems to be excellent, and conservative management could be discussed in younger patients.

1 December 2003 in Journal of the American College of Surgeons
Verified
Journal Article
Closed access
PMPhilippe Morice
Philippe Morice
GDGil Dubernard
Gil Dubernard
ARAnnie Rey
Annie Rey
DADavid Atallah
David Atallah
PPPatricia Pautier
Patricia Pautier
DCDamienne Castaigne
Damienne Castaigne
Results of IDS (after three to four courses of induction chemotherapy) were compared with PDS followed by chemotherapy in patients treated for advanced stage ovarian cancer (stage IIIC or IV). A retrospective study was done on a group of 57 patients who underwent IDS (because of an unresectable tumor) compared with a group of 28 patients treated with PDS (for resectable disease) followed by chemotherapy. All patients were treated between 1996 and 2001 by the same team of surgeons and received the same regimen of chemotherapy (platinum based plus paclitaxel). Optimal cytoreductive surgery (residual disease < or = 2 cm) was achieved in IDS and PDS groups in 84% (48 of 57) and 100% (28 of 28) of patients, respectively. Complete resection was observed in 51% (29 of 57) of patients in the IDS group and 54% (15 of 28) of patients in the PDS group. The rates of bowel resection, large peritoneal resection, and postoperative morbidity were significantly reduced in the IDS group. After adjusting for the size of residual disease (< or /= 2 cm and absence of residual tumor), overall and event-free survival were not different in the two groups. Survival rates were similar in patients with advanced stage ovarian cancer who underwent IDS or PDS. The rates of surgical resection and morbidity were reduced after IDS. IDS can be safely used in unresectable advanced stage ovarian cancer.

1 October 2003 in Annals of Oncology
Verified
Journal Article
Open access
PDF file
PMP. Morice
P. Morice
PPP. Piovesan
P. Piovesan
ARA. Rey
A. Rey
DADavid Atallah
David Atallah
CHC. Haie-Meder
C. Haie-Meder
DCD. Castaigne
D. Castaigne
Background: Our aim was to study the prognostic value of the presence of lymphovascular space invasion (LVSI) in patients with stage IB and II cervical carcinoma treated by initial surgery. Patients and methods: A retrospective analysis was performed on 193 patients who underwent, between 1985 and 1998, an initial radical hysterectomy with pelvic (± para-aortic) lymphadenectomy using midline laparotomy for stage IB (180 patients) or II (13 patients) cervical carcinoma. Postoperative therapy was delivered according to prognostic factors. Results: The rate of LVSI correlated significantly with tumor stage, nodal status and the location of positive nodes. Using univariate analysis, tumor size (<4 or ≥4 cm), LVS status and nodal status were prognostic factors. At multivariate analysis, two prognostic factors were identified: LVS status and nodal status. In a subgroup of 89 patients with a small tumor (≤2 cm) and absence of nodal or isthmic involvement, the overall survival was significantly correlated with the presence of LVSI. Conclusions: LVSI is a frequent occurrence in patients with early stage cervical cancer. It represents an unfavorable prognostic factor in univariate and multivariate analyses. Such results suggest that improvement is needed in the treatment of patients with a small tumor and LVS invasion.