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Prof Léon Maggiori is an expert in Surgery at Assistance Publique - Hôpitaux de Paris (France). As of October 2026, ScienceLeadR ranks Léon Maggiori in the top 1% of experts worldwide for Intestinal Neoplasms and surgical procedures, colorectal. Léon Maggiori has authored 273 publications, the most recent in 2026, and is an investigator in 13 clinical trials, 6 of them ongoing. SLR score: 832 (community average: 125). How the SLR is computed.

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Prof Léon Maggiori Assistance Publique - Hôpitaux de Paris France
832 ScienceLeadR Reputation 832

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Surgery

Subspecialties: Gastroenterology - Public Health - Oncology

Full career – Last 3 years

Main Topics

Publications and Clinical Studies

Publications – Clinical Studies

Profile data updated on

Expert Rankings

Top experts on the MeSH terms this expert works on

Organizations

Career arc: 2008 - 2026
Source: PubMed

Assistance Publique – Hôpitaux de Paris

Publications Synthesis

Sources: PubMed, OpenAlex

Number : 273

Citations

Citations: 5 982 1st author: 48 Last author: 20 Unique author: 5

Main journals

Colorectal Dis 35
J Crohns Colitis 24
Ann Surg 20
Côlon & rectum 12
Journal de chirurgie viscérale 11

Best Journals

Breakdown by type

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Latest Publications

5 most recent indexed articles

Source: Pubmed

Title Journal Year Citations
Simultaneous integrated boost vs sequential boost chemoradiotherapy in anal squamous cell carcinoma: Association with improved disease-free survival and the role of treatment delivery parameters.
PMID 42471955 — radiotherapy, cells, disease-free survival, carcinoma, squamous cell, drug-related side effects and adverse reactions, chemoradiotherapy, lymph, anal canal, therapeutics, aids-related complex		Clin Transl Radiat Oncol20260
Safety and effectiveness of the Colovac anastomosis protection device compared with diverting ileostomy after low anterior resection: protocol for an international, multicentre, prospective, non-randomised comparative study (SAFE-3).
PMID 42285586 — safety, morbidity, ileostomy		BMJ Open Gastroenterol20260
Transanal Endoscopic Microsurgery or Endoscopic Submucosal Dissection in Early Rectal Tumors: A Clinical and Cost-Effectiveness Analysis: The MUCEM Study.
PMID 41620037 — transanal endoscopic microsurgery, quality of life, confidence intervals, neoplasms, rectal neoplasms, microsurgery, dissection, endoscopic mucosal resection, survival rate		Gastroenterology20260
Organ Preservation in Rectal Cancer Management: A Prospective GRECCAR Snapshot.
PMID 42053078 — disease-free survival, organ preservation, neoplasms, neoplasm metastasis, neoadjuvant therapy, rectal neoplasms, therapeutics		Dis Colon Rectum20260
Neoadjuvant chemotherapy for obstructive colon cancer derived by a stoma: Study protocol of the FRENCH-01 randomized phase III trial (COnCERTO Trial).
PMID 41945039 — quality of life, neoplasms, colon, drug therapy, chemotherapy, adjuvant, morbidity, colectomy, colonic neoplasms, chemotherapy		Dig Liver Dis20260

Clinical Studies 13

Sources: ClinicalTrials, EU CTIS

Synthesis

Principal Investigator: 3

By phase:

N/A 9
Phase 3 2
Phase 2 1
Phase 2/Phase 3 1

By status:

Recruiting 7
Completed 2
Terminated 2
Unknown 2

By type:

Interventional 11
Observational 2

By Monocentric/Multicentric:

monocentric 4
multicentric2to4 0
multicentric5to9 0
multicentricup10 9

Main Topics

Cohort/Consortium Investigators 7

Ongoing Clinical Trials

6 ongoing trials started since 2021, where this expert is an investigator

Source: ClinicalTrials

Study Phase Status Start
Low Stable Pressure Pneumoperitoneum in Colorectal Surgery (CROSS STUDY)
NCT06154785 — neoplasms, pathology, cohort studies, colon, pneumoperitoneum, colorectal surgery		N/ARecruiting2023
Neoadjuvant Chemotherapy for Obstructive Colon cancER First Treated by cOlostomy
NCT06107920 — colostomy, neoplasms, colon, drug therapy, chemotherapy, adjuvant, neoadjuvant therapy, therapeutics, colectomy, colonic neoplasms, chemotherapy		Phase 3Recruiting2024
KONO S Anastomosis Compared to Conventional Ileocolonic Anastomosis to Reduce Recurrence in Crohn s Disease
NCT05974358 — constriction, pathologic, crohn disease, therapeutics		N/ARecruiting2025
Intraoperative Indocyanine Green Fluorescence Angiography in Colorectal Surgery to Prevent Anastomotic Leakage
NCT05168839 — injections, quality of life, neoplasms, multiple chronic conditions, colon, angiography, drug-related side effects and adverse reactions, anesthesiologists, rectal neoplasms, anastomotic leak, colorectal neoplasms, colic, indocyanine green, colorectal surgery, colectomy		Phase 3Recruiting2022
Trial Evaluating the Tailored Versus the Systematic Use of Defunctioning Stoma After Total Mesorectal Excision for Rectal Cancer (GRECCAR17)
NCT05233787 — quality of life, neoplasms, enema, sepsis, rectal neoplasms, anastomotic leak, ileostomy		N/ARecruiting2022

LeadR Networks

Main global connection map

Sources: PubMed, OpenAlex, ClinicalTrials, EU CTIS