A core outcome set for locoregional treatment reporting in neoadjuvant systemic breast cancer treatment trials
Accurate information about locoregional breast cancer treatments following neoadjuvant systemic therapy (NST) is essential for meaningful interpretation of oncological outcomes but reporting is currently poor. We developed a core outcome set (COS) to improve the quality and consistency of locoregional outcome reporting in breast cancer NST trials. The COS was developed in three phases according to COS-STAD guidance, with the generation of a list of relevant outcome domains, prioritisation of outcomes through two rounds of an international online multi-stakeholder Delphi survey and a consensus meeting. 159 unique locoregional outcomes were classified into 101 outcome domains for inclusion in the Delphi survey, which was completed by 470 international professionals. The final 15-item COS, which included the pre-NST surgical plan, details of surgery performed following completion of treatment and details of radiation therapy, was agreed at an in-person consensus meeting. Widespread COS implementation will improve the quality and value of future NST trials.
Authors
- Javier Pascual (ORCID: https://orcid.org/0000-0003-3874-2782)
- Richard Simcock (ORCID: https://orcid.org/0000-0002-9828-4114)
- Sergi Vidal‐Sicart (ORCID: https://orcid.org/0000-0002-6303-3606)
- Nicola S. Russell (ORCID: https://orcid.org/0000-0003-3507-9620)
- Paul Martin Putora (ORCID: https://orcid.org/0000-0002-4972-6115)
- Megha Tandon (ORCID: https://orcid.org/0000-0001-9999-5332)
- David Dodwell (ORCID: https://orcid.org/0000-0001-8787-4904)
- Gaurav Agarwal (ORCID: https://orcid.org/0000-0003-4194-2670)
- Taewoo Kang (ORCID: https://orcid.org/0000-0002-6279-0904)
- Puteri Abdul Haris
- Duvern Ramiah (ORCID: https://orcid.org/0000-0002-6746-9431)
- S. Berrón
- Vishvak Chanthar
- Carlotta Becherini (ORCID: https://orcid.org/0000-0002-0597-7537)
- Evrim Tezcanli (ORCID: https://orcid.org/0000-0001-7009-1073)
- Michael Jiang (ORCID: https://orcid.org/0000-0002-9650-3766)
- Sandra A. Finestone
- Anne Meyn
- Rosina Ahmed (ORCID: https://orcid.org/0000-0002-8760-3458)
- Beth Campbell
- Karez Sarbast Namiq (ORCID: https://orcid.org/0000-0002-9307-5110)
- E. Razis
- Rosa Di Micco (ORCID: https://orcid.org/0000-0002-2575-8729)
- José Ignacio Sánchez-Méndez (ORCID: https://orcid.org/0000-0003-2559-2500)
- Suzanne B. Coopey (ORCID: https://orcid.org/0000-0003-3125-1139)
- Dominik Hlauschek (ORCID: https://orcid.org/0009-0009-1009-3777)
- Florian Ebner (ORCID: https://orcid.org/0000-0003-2066-5344)
- Massimiliano Daiuto
- B. Sirohi
- Rossana Berardi
- J Federmann
- Rabia Ikram (ORCID: https://orcid.org/0000-0003-1224-9818)
- Marissa C. van Maaren (ORCID: https://orcid.org/0000-0002-5708-2559)
- Jean L. Wright (ORCID: https://orcid.org/0000-0001-5775-6544)
- Julie Margenthaler
- Lia Pamela Rebaza (ORCID: https://orcid.org/0000-0002-9620-9460)
- Shelley Potter (ORCID: https://orcid.org/0000-0002-6977-312X)
- Maja V. Maraldo (ORCID: https://orcid.org/0000-0001-6159-5907)
- Nisha Hariharan (ORCID: https://orcid.org/0000-0002-5976-3649)
- Andrea Bonetti (ORCID: https://orcid.org/0000-0002-5597-748X)
- John H. Maduro (ORCID: https://orcid.org/0000-0003-2458-8702)
- Beatriz Rojas (ORCID: https://orcid.org/0009-0005-6708-0214)
- Liesbeth Boersma (ORCID: https://orcid.org/0000-0001-9173-279X)
- Michalis Kontos (ORCID: https://orcid.org/0000-0003-1686-7875)
- Dimitrios Dragoumis (ORCID: https://orcid.org/0000-0002-2934-3897)
- Thomas Hubbard (ORCID: https://orcid.org/0000-0003-4593-0853)
- Gemma Hegarty (ORCID: https://orcid.org/0000-0003-4571-0666)
- Tuomo J Meretoja (ORCID: https://orcid.org/0000-0002-2691-0710)
- Geeta Kadayaprath (ORCID: https://orcid.org/0000-0002-7084-0107)
- Roger Olofsson Bagge (ORCID: https://orcid.org/0000-0001-5795-0355)
- Conde-Herrero Verónica
- Andrea L. Richardson (ORCID: https://orcid.org/0000-0001-5221-1094)
- Ramachandran Venkitaraman (ORCID: https://orcid.org/0000-0002-6296-6033)
- J. Claros (ORCID: https://orcid.org/0000-0001-8262-9782)
- Henry Cain (ORCID: https://orcid.org/0000-0001-5903-3454)
- Preethi S. Shetty (ORCID: https://orcid.org/0000-0001-9930-5020)
- Vincent Barrette
- Martin P. Karamanliev (ORCID: https://orcid.org/0000-0001-5166-0752)
- Elisabetta Cretella (ORCID: https://orcid.org/0000-0001-8491-3058)
- Ericka Wiebe (ORCID: https://orcid.org/0000-0003-2720-5076)
- Umesh Velu (ORCID: https://orcid.org/0000-0001-8202-8995)
- Séamus O’Reilly (ORCID: https://orcid.org/0000-0002-2887-7336)
- Georgios‐Marios Makris (ORCID: https://orcid.org/0000-0001-8945-4874)
- Gianluca Franceschini (ORCID: https://orcid.org/0000-0002-2950-3395)
- Arantxa Eraso (ORCID: https://orcid.org/0000-0002-5378-7834)
- Anagha Zope
- Kirsty E. Stuart (ORCID: https://orcid.org/0000-0001-5550-0377)
- Stefanie Corradini
- Cary Hsu
- Daniele Generali (ORCID: https://orcid.org/0000-0003-2480-3855)
- Yazan Masannat (ORCID: https://orcid.org/0000-0002-5895-5059)
- Nikolay Amirov (ORCID: https://orcid.org/0000-0002-2421-3284)
- Matthew M. Poppe (ORCID: https://orcid.org/0000-0002-9573-1329)
- Nicholas Zdenkowski (ORCID: https://orcid.org/0000-0001-8738-8463)
- Rebecca L. Read
- Matteo Ghilli (ORCID: https://orcid.org/0000-0001-5536-7377)
- Vesna Bjelic‐Radisic (ORCID: https://orcid.org/0000-0002-3749-4775)
- Sarkis Meterissian (ORCID: https://orcid.org/0000-0002-9586-3583)
- Antonis Valachis
- Sarah Deschuymer (ORCID: https://orcid.org/0000-0002-2271-6566)
- Malgorzata Banys-Paluchowski (ORCID: https://orcid.org/0000-0002-2374-9482)
- Ursa Brown-Glaberman (ORCID: https://orcid.org/0000-0002-1021-9394)
- Lynda Wyld (ORCID: https://orcid.org/0000-0002-4046-5940)
- Kylie Jung (ORCID: https://orcid.org/0000-0001-9362-7766)
- Michael Gnant (ORCID: https://orcid.org/0000-0003-1002-2118)
- Beatrix Elsberger (ORCID: https://orcid.org/0000-0002-2864-5789)
- Toan T. Nguyen (ORCID: https://orcid.org/0000-0002-0482-6518)
- Natacha Ruyssers
- Constantinos Savva (ORCID: https://orcid.org/0000-0003-0805-4719)
- Anastasia Constantinidou (ORCID: https://orcid.org/0000-0001-5316-7574)
- Sofía Aragón
- Emma Kipps (ORCID: https://orcid.org/0000-0002-4912-8502)
- Carolina de la Pinta (ORCID: https://orcid.org/0000-0002-5425-3471)
- Tamara Martos
- Alastair Mark Thompson (ORCID: https://orcid.org/0000-0003-0604-7267)
- Tony Branson
- Kazutaka Narui (ORCID: https://orcid.org/0000-0002-0135-5001)
- Güldeniz Karadeniz Çakmak (ORCID: https://orcid.org/0000-0001-5802-4441)
- Stephen R. Grobmyer (ORCID: https://orcid.org/0000-0002-1163-1348)
- Javier Retamales (ORCID: https://orcid.org/0000-0001-7051-0362)
- Janice Yeh
- Mairead MacKenzie
- Zacharoula Sidiropoulou (ORCID: https://orcid.org/0000-0003-0430-3861)
- Iman Sharawy
- Dominique Pasquier (ORCID: https://orcid.org/0000-0001-6019-7309)
- Tal Hadar
- Jai Min Ryu (ORCID: https://orcid.org/0000-0001-5405-7385)
- A. M. Silva
- Miguel Gil‐Gil (ORCID: https://orcid.org/0000-0003-1380-2718)
- Eugênio Bucci (ORCID: https://orcid.org/0000-0002-5745-0171)
- Mauro Porpiglia (ORCID: https://orcid.org/0009-0000-5909-2315)
- Enrique Soto‐Pérez‐de‐Celis (ORCID: https://orcid.org/0000-0002-7301-2163)
- Anneza Yiallourou (ORCID: https://orcid.org/0000-0003-1237-1661)
- Jan Žatecký (ORCID: https://orcid.org/0000-0002-0415-0853)
- Pelagia Tsoutsou (ORCID: https://orcid.org/0000-0002-6490-9278)
- Saika Amreen (ORCID: https://orcid.org/0000-0003-0578-1400)
- Shashank Shenoy
- Anção Ms (ORCID: https://orcid.org/0000-0002-0781-0191)
- A Pellegrini (ORCID: https://orcid.org/0000-0001-8367-8201)
- Diana Lüftner (ORCID: https://orcid.org/0000-0003-2511-9115)
- Isabel T. Rubio (ORCID: https://orcid.org/0000-0003-0035-0679)
- N. Roberts (ORCID: https://orcid.org/0000-0002-0189-366X)
- Alessandro Fancellu (ORCID: https://orcid.org/0000-0002-3997-8183)
- Verónica Fabiano
- Jiraporn Setakornnukul (ORCID: https://orcid.org/0000-0002-7201-0377)
- Michelle Ludwig (ORCID: https://orcid.org/0000-0001-8860-7269)
- Philip M. Spanheimer (ORCID: https://orcid.org/0000-0001-8644-0178)
- Stuart McIntosh (ORCID: https://orcid.org/0000-0002-4123-9611)
- P. Poortmans
- M. Puchinskaya
- Ioannis A. Voutsadakis (ORCID: https://orcid.org/0000-0002-9301-5951)
- Elisabetta Munzone (ORCID: https://orcid.org/0000-0003-3371-3878)
- Alessandra Huscher (ORCID: https://orcid.org/0000-0002-1428-7933)
- P. Wittmann
- Mangesh A. Thorat (ORCID: https://orcid.org/0000-0001-8673-5320)
- Lorenzo Scardina (ORCID: https://orcid.org/0000-0002-5828-2851)
- Kylie Snook (ORCID: https://orcid.org/0000-0001-9972-0961)
- Venkatraman Radhakrishnan (ORCID: https://orcid.org/0000-0002-7557-5816)
- Mukesh Shanthilal
- Kerry Avery (ORCID: https://orcid.org/0000-0001-5477-2418)
- Daniel Portik (ORCID: https://orcid.org/0009-0008-8392-3252)
- Han‐Byoel Lee (ORCID: https://orcid.org/0000-0003-0152-575X)
- Samantha Chen (ORCID: https://orcid.org/0000-0002-0883-5569)
- Cinta Albacar
- Serap Erel (ORCID: https://orcid.org/0000-0001-7365-883X)
- Stefan Aebi (ORCID: https://orcid.org/0000-0002-3383-9449)
- Marinos Tsiatas (ORCID: https://orcid.org/0000-0002-5881-992X)
- Farhanul Huda (ORCID: https://orcid.org/0000-0002-1309-1832)
- Eduard-Alexandru Bonci (ORCID: https://orcid.org/0000-0001-5119-0906)
- Aniwat Berpan (ORCID: https://orcid.org/0000-0002-3924-1210)
- Maria Luisa Gasparri (ORCID: https://orcid.org/0000-0002-9482-9527)
- Ji-Jung Jung (ORCID: https://orcid.org/0000-0003-4080-1075)
- James Mansell
- Andrew Redfern (ORCID: https://orcid.org/0000-0002-6949-6249)
- M. Algara (ORCID: https://orcid.org/0000-0002-0500-9202)
- Fabio Corsi (ORCID: https://orcid.org/0000-0002-6469-4086)
- Nick Abbott
- Jose Fernando Prado Moura
- Yisihak Suga (ORCID: https://orcid.org/0000-0002-5040-8288)
- Hyun Soo Ko (ORCID: https://orcid.org/0000-0002-6727-9507)
- Jana de Boniface (ORCID: https://orcid.org/0000-0001-9518-0902)
- Amtul R. Carmichael (ORCID: https://orcid.org/0000-0002-3003-8486)
- Helena Sackey (ORCID: https://orcid.org/0009-0005-5320-0246)
- Shaurav Maulik (ORCID: https://orcid.org/0000-0002-7177-5917)
- Tarek Hijal (ORCID: https://orcid.org/0000-0002-9341-1735)
- Hiroko Bando (ORCID: https://orcid.org/0000-0002-7361-3647)
- Vérène Dougoud-Chauvin
- David A. Krug (ORCID: https://orcid.org/0000-0001-8811-5416)
- Sanjay Kumar (ORCID: https://orcid.org/0000-0002-0584-0901)
- Sunita Saha (ORCID: https://orcid.org/0000-0001-5517-214X)
- Amparo Oltra Ferrando
- Michael V. Swinden
- Alba J. Kihn-Alarcón (ORCID: https://orcid.org/0000-0003-4431-5998)
- Teresa Muñoz Migueláñez
- Shagun Misra (ORCID: https://orcid.org/0000-0003-3196-5094)
- Constanze Elfgen (ORCID: https://orcid.org/0000-0001-6092-6612)
- Apostolos Konstantis (ORCID: https://orcid.org/0000-0003-2277-5264)
- Cynthia Aristei (ORCID: https://orcid.org/0000-0002-9749-649X)
- Lubna Mushtaque Vohra (ORCID: https://orcid.org/0000-0003-2542-5251)
- Covadonga Martí (ORCID: https://orcid.org/0000-0002-5735-1966)
- José Luís Fougo (ORCID: https://orcid.org/0000-0003-1861-8178)
- Niharika Rajan Garach (ORCID: https://orcid.org/0000-0002-7843-172X)
- Elisabeth Edström Elder (ORCID: https://orcid.org/0000-0002-6686-9898)
- C Großmann
- Katarzyna J. Jerzak (ORCID: https://orcid.org/0000-0002-3995-0308)
- Jos A. van der Hage (ORCID: https://orcid.org/0000-0001-9040-1323)
- Ishtiaq Ur Rahim
- Dobromir Dimitrov (ORCID: https://orcid.org/0000-0002-2842-5436)
- Ellen Copson (ORCID: https://orcid.org/0000-0001-8994-4056)
- Heidi Stranzl
- Rhea Liang (ORCID: https://orcid.org/0000-0002-8219-0631)
- Martin Heidinger
- Takayuki Ueno (ORCID: https://orcid.org/0000-0002-9080-9377)
- Tamar Esakia (ORCID: https://orcid.org/0000-0002-4649-7687)
- Semra Günay (ORCID: https://orcid.org/0000-0001-6845-658X)
- Cliona Kirwan (ORCID: https://orcid.org/0000-0002-1725-4790)
- Geoff P. Delaney (ORCID: https://orcid.org/0000-0002-1829-396X)
- Jenny Edge (ORCID: https://orcid.org/0000-0003-3005-7254)
- Indrani Bhattacharya (ORCID: https://orcid.org/0000-0002-2983-1305)
- M. Shoshkova
- Raphael Caio Tamborelli Garcia (ORCID: https://orcid.org/0000-0002-7080-3955)
- Peter Barry (ORCID: https://orcid.org/0000-0001-6326-4431)
- Tove Filtenborg Tvedskov (ORCID: https://orcid.org/0000-0002-7568-1790)
- Valeria Masiello (ORCID: https://orcid.org/0000-0001-7589-7623)
- Alex De Caluwé (ORCID: https://orcid.org/0000-0001-5989-7017)
- Vitor Teixeira Liutti (ORCID: https://orcid.org/0000-0003-1199-0153)
- Sara Leal (ORCID: https://orcid.org/0000-0002-8594-5243)
- Á. Montero (ORCID: https://orcid.org/0000-0001-5566-0493)
- Lütfi Doğan (ORCID: https://orcid.org/0000-0002-3834-0911)
- Gustavo Gössling (ORCID: https://orcid.org/0000-0002-4361-2889)
- Norikazu Masuda (ORCID: https://orcid.org/0000-0002-7302-0278)
- P. Madeira (ORCID: https://orcid.org/0000-0002-5184-4671)
- Yiola Marcou (ORCID: https://orcid.org/0000-0002-5350-0485)
- Ramsey Cutress (ORCID: https://orcid.org/0000-0002-1719-7255)
- Gareth Irwin (ORCID: https://orcid.org/0000-0002-2499-5896)
- Dawid Murawa (ORCID: https://orcid.org/0000-0003-3156-1882)
- Marianne Aznar (ORCID: https://orcid.org/0000-0001-6452-0310)
- Inês Eiriz (ORCID: https://orcid.org/0000-0002-1760-3436)
- Martín Espinosa-Bravo (ORCID: https://orcid.org/0000-0002-4293-3875)
- Coralia Bueno (ORCID: https://orcid.org/0000-0002-1614-1030)
- Margherita Serra (ORCID: https://orcid.org/0000-0003-0914-9605)
- Akif Enes Arıkan (ORCID: https://orcid.org/0000-0003-1671-4510)
- Elena Provenzano (ORCID: https://orcid.org/0000-0003-3345-3965)
- Nawale Hajjaji (ORCID: https://orcid.org/0000-0002-8500-2309)
- Shelly Sharma
- Stergios Douvetzemis (ORCID: https://orcid.org/0000-0002-8055-8164)
- Guy Jérusalem (ORCID: https://orcid.org/0000-0002-8845-0043)
- Selvamani Backianathan (ORCID: https://orcid.org/0000-0002-9394-7249)
- Fiorita Poulakaki (ORCID: https://orcid.org/0000-0001-6028-1295)
- Alejandro Martín Sánchez (ORCID: https://orcid.org/0000-0002-4840-507X)
- L.A. Fernández-Morales (ORCID: https://orcid.org/0000-0003-2120-6457)
- Hugo Alejandro Fuentes (ORCID: https://orcid.org/0000-0002-2747-7381)
- Donatienne Taylor (ORCID: https://orcid.org/0000-0002-5141-513X)
- Mark Sibbering
- Francesca Rovera (ORCID: https://orcid.org/0000-0001-8172-3339)
- Jenna Morgan (ORCID: https://orcid.org/0000-0002-5337-5581)
- Fiona Smith
- Ayfer Kamalı Polat (ORCID: https://orcid.org/0000-0001-6414-9435)
- Chandeena Roshanlall
- Amit Choraria (ORCID: https://orcid.org/0000-0001-5256-608X)
- Christine Mau
- Melanie Walker (ORCID: https://orcid.org/0000-0002-7859-6380)
- Peter Dubsky (ORCID: https://orcid.org/0000-0002-9566-0209)
- Reshma Jagsi (ORCID: https://orcid.org/0000-0001-6562-1228)
- Smitha Rao (ORCID: https://orcid.org/0000-0001-5556-7707)
- Hyun Jo Youn (ORCID: https://orcid.org/0000-0002-2407-8537)
- Nicola Rocco (ORCID: https://orcid.org/0000-0001-6941-7873)
- Francesco Fiorica (ORCID: https://orcid.org/0000-0002-9404-3655)
- Ivica Ratoša (ORCID: https://orcid.org/0000-0002-5551-6616)
- Tomas Reinert
- Irene Wapnir (ORCID: https://orcid.org/0000-0003-2062-2854)
- Maria Del Pilar Estevez-Diz (ORCID: https://orcid.org/0000-0003-3176-9747)
- Wajana Thaweerat (ORCID: https://orcid.org/0000-0002-8115-9077)
- Ana Car Peterko (ORCID: https://orcid.org/0000-0003-3148-0126)
- Amanda Zeko
- Marija Živković (ORCID: https://orcid.org/0000-0003-3534-5271)
- Khaled Abdelwahab (ORCID: https://orcid.org/0000-0002-3679-8718)
- Nancy Chan (ORCID: https://orcid.org/0000-0002-0047-5108)
- M. Luzi (ORCID: https://orcid.org/0000-0002-9565-9400)
- Gustavo Werutsky (ORCID: https://orcid.org/0000-0001-6271-105X)
- Iain Macpherson (ORCID: https://orcid.org/0000-0003-0443-2073)
- Anastasia Nikopoulou
- Melissa James (ORCID: https://orcid.org/0000-0001-6123-1951)
- Farah Asif
- Sanjoy Chatterjee (ORCID: https://orcid.org/0000-0001-7402-8645)
- Karla A. Sepulveda
- Frances Duane (ORCID: https://orcid.org/0000-0001-7838-5957)
- Andreas Karakatsanis (ORCID: https://orcid.org/0000-0003-3622-3575)
- Maria Saveria Tavoletta
- Andrew J. Spillane (ORCID: https://orcid.org/0000-0002-8354-434X)
- Tabassum Wadasadawala (ORCID: https://orcid.org/0000-0003-2167-420X)
- Elaine Borg (ORCID: https://orcid.org/0009-0000-6250-9695)
- G. Zatta Cobos
- Assia Konsoulova (ORCID: https://orcid.org/0000-0002-7560-8032)
- M. Chiu
- Laurent Rosset
- Antonio Piñero (ORCID: https://orcid.org/0000-0002-7718-8318)
- Pablo Mandó (ORCID: https://orcid.org/0000-0001-8387-9011)
- Björn Beurer
- Ira Oikonomou
- Tommaso Susini (ORCID: https://orcid.org/0000-0002-2320-7202)
- Alessandro Marco Minisini (ORCID: https://orcid.org/0000-0001-7712-7286)
- Răzvan Popescu (ORCID: https://orcid.org/0000-0001-8894-7925)
- Jacqui Thomson
- Jayant S. Vaidya (ORCID: https://orcid.org/0000-0003-1760-1278)
- Bruno Meduri (ORCID: https://orcid.org/0000-0002-7588-9081)
- Rinat Bernstein‐Molho (ORCID: https://orcid.org/0000-0002-4068-9514)
- J. Ferreiro
- Ana Isabel Martín-Quesada (ORCID: https://orcid.org/0000-0001-8439-6679)
- Alicia Cano-Jimenez
- Güney Cem Bülbüloğlu
- Jeeyeon Lee (ORCID: https://orcid.org/0000-0003-1826-1690)
- Mah Muneer Khan (ORCID: https://orcid.org/0000-0001-7862-2721)
- Stephanie M. Wong (ORCID: https://orcid.org/0000-0001-9144-7841)
- Dejan Nikolić (ORCID: https://orcid.org/0000-0002-7367-8723)
- Conor O’Neill (ORCID: https://orcid.org/0000-0002-4003-0680)
- Nathalie Johnson (ORCID: https://orcid.org/0000-0001-7905-8122)
- Fredrik Wärnberg (ORCID: https://orcid.org/0000-0002-6274-2435)
- Ad Vandermeulen (ORCID: https://orcid.org/0000-0001-5058-6992)
- Mélanie Machiels
- Jaqueline F. Salinas (ORCID: https://orcid.org/0000-0002-5131-8284)
- Mark Davies
- Josefina Cruz
- Isaura Fernandez
- Franchette van den Berkmortel
- Henry Leonidas Gomez
- Ana Aurora Diaz-Gavela
- Cecilia Castillo
- Ian Kunkler
- Beatriz Vázquez-Barreiro (ORCID: https://orcid.org/0000-0001-8892-9479)
- Lazaros Papadopoulos
- Orit Kaidar-Person
- Frederieke Van Duijnhoven
- Icro Meattini
- Margit Riis
- Cristina Segura
- Evelyn Klein
- C D Johnson
- Gustavo Nader Marta (ORCID: https://orcid.org/0000-0002-3298-3684)
- José Juan Illarramendi
- Karyne Martel
- Katherine Cowan
- Paulo Cortes
- Grant Harris
- Tamar Peretz‐Yablonski
- Brian L. Burnette
- Kyle Crawford
- Emma MacInnes
- Siobhan Laws
- E. Llabrés Valentí (ORCID: https://orcid.org/0000-0002-3168-8974)
- Roxolyana Abdah‐Bortnyak
- Hiroji Iwata
- John Collins
- Iskra Daskalova
- Waleed Fahmy
- Lohita Krishna Kanyadhara
- Antigoni Kretsi
- Emmanouil Aligizakis
- Alp Ömer-Cantürk
Institutions
- Sakarya University (TR)
- Ain Shams University (EG)
- University of North Carolina at Chapel Hill (US)
- Abu Dhabi University (AE)
- Australian National University (AU)
- University of Verona (IT)
- University of Modena and Reggio Emilia (IT)
- Marche Polytechnic University (IT)
- Uppsala University (SE)
- Queen's University Belfast (GB)
- Universidade Estadual de Londrina (BR)
- Oslo University Hospital (NO)
- Belfast Health and Social Care Trust (GB)
- Swansea Bay University Health Board (GB)
- The University of Sydney (AU)
- Queensland Health (AU)
- Ministry of Health (TR)
- North Bristol NHS Trust (GB)
- Allegheny Health Network (US)
- Ministry of Health (NZ)
- Cliniques Universitaires Saint-Luc (BE)
- Mater Health Services (AU)
- Université Libre de Bruxelles (BE)
- Westchester Medical Center (US)
- Royal Marsden NHS Foundation Trust (GB)
- Siriraj Hospital (TH)
- Nitte University (IN)
- University Medical Center Groningen (NL)
- University of Ulster (GB)
- Seoul National University (KR)
- University of Kragujevac (RS)
- Khyber Medical College (PK)
- Johns Hopkins University (US)
- University of Tsukuba (JP)
- University of Antwerp (BE)
- Emory University (US)
- Maidstone and Tunbridge Wells NHS Trust (GB)
- University of Ljubljana (SI)
- University of Fribourg (CH)
- University of Rijeka (HR)
- Vita-Salute San Raffaele University (IT)
- Universität Hamburg (DE)
- Mansoura University (EG)
- Sanjay Gandhi Post Graduate Institute of Medical Sciences (IN)
- University of Lucerne (CH)
- Legacy Health (US)
- Tel Aviv University (IL)
- Manipal Academy of Higher Education (IN)
- The University of Melbourne (AU)
- Queen Mary University of London (GB)
- Hawler Medical University (IQ)
- University of New Mexico (US)
- Christian Medical College, Vellore (IN)
- Vardhman Mahavir Medical College & Safdarjung Hospital (IN)
- Baylor College of Medicine (US)
- University of Toronto (CA)
- University of the Witwatersrand (ZA)
- National and Kapodistrian University of Athens (GR)
- University of Washington (US)
- Medical University of Graz (AT)
- Iuliu Hațieganu University of Medicine and Pharmacy (RO)
- Rashid Latif Medical College (PK)
- Kyoto University (JP)
- Ondokuz Mayıs University (TR)
- Netaji Subhash Chandra Bose Medical College (IN)
- University of Exeter (GB)
- Örebro University (SE)
- University of Perugia (IT)
- Hospital Universitario Insular de Gran Canaria (ES)
- Royal Derby Hospital (GB)
- Leeds Teaching Hospitals NHS Trust (GB)
- Khyber Teaching Hospital (PK)
- Catalan Institute for Water Research (ES)
- Sheba Medical Center (IL)
- Royal Hospital for Women (AU)
- Johns Hopkins Medicine (US)
- Kantonsspital St. Gallen (CH)
- Hadassah Medical Center (IL)
- Leiden University Medical Center (NL)
- Tata Memorial Hospital (IN)
- Maastricht University Medical Centre (NL)
- Helsinki University Hospital (FI)
- Hospital Universitario de Canarias (ES)
- Mother Teresa Hospital (AL)
- Santa Casa Hospital (BR)
- Peter MacCallum Cancer Centre (AU)
- Hospital Universitario La Paz (ES)
- Aberdeen Royal Infirmary (GB)
- Katherine Hospital (AU)
- Fiona Stanley Hospital (AU)
- University Hospitals Bristol NHS Foundation Trust (GB)
- Queen Mary Hospital (CN)
- South Essex Partnership University Foundation NHS Trust (GB)
- Northumbria Healthcare NHS Foundation Trust (GB)
- University Hospital of Bern (CH)
- Sahlgrenska University Hospital (SE)
- Shaikh Zayed Hospital (PK)
- Wellington Hospital (NZ)
- Huntsman Cancer Institute (US)
- Mater Dei Hospital (MT)
- Ghent University Hospital (BE)
- Vajira Hospital (TH)
- Rambam Health Care Campus (IL)
- Cancer Institute (WIA) (IN)
- Kettering General Hospital (GB)
- Broomfield Hospital (GB)
- At Bristol (GB)
- Kyungpook National University Hospital (KR)
- McGill University Health Centre (CA)
- Jewish General Hospital (CA)
- Institut Jules Bordet (BE)
- Care Institute of Medical Sciences (IN)
- Gartnavel General Hospital (GB)
- Yokohama City University Medical Center (JP)
- Samsung Medical Center (KR)
- Altnagelvin Area Hospital (GB)
- University Hospital Complex Of Vigo (ES)
- New Generation University College (ET)
- Cambridge University Hospitals NHS Foundation Trust (GB)
- University Hospital of Basel (CH)
- Agostino Gemelli University Polyclinic (IT)
- Gentofte Hospital (DK)
- TUM Klinikum (DE)
- Rigshospitalet (DK)
- Environment Canterbury (NZ)
- Seoul National University Hospital (KR)
- Royal Hampshire County Hospital (GB)
- Aga Khan University Hospital (PK)
- Canberra Hospital (AU)
- Westmead Hospital (AU)
- Karolinska Institutet (SE)
- University of Manchester (GB)
- The Netherlands Cancer Institute (NL)
- Zonguldak Bülent Ecevit University (TR)
- Hospital de São João (PT)
- UNSW Sydney (AU)
- Acıbadem University (TR)
- Silesian University in Opava (CZ)
- Maastricht University (NL)
- University of Cyprus (CY)
- University of Bristol (GB)
- University of Oxford (GB)
- Real Hospital Português (BR)
- Research Institute Hospital 12 de Octubre (ES)
- NYU Langone Health (US)
- Instituto do Câncer do Estado de São Paulo (BR)
- Tata Medical Center (IN)
- Ospedale di Bolzano (IT)
- Istituti Clinici Scientifici Maugeri (IT)
- Comprehensive Cancer Center Vienna (AT)
- Rajiv Gandhi Cancer Institute and Research Centre (IN)
- CHU Dinant Godinne UCL Namur (BE)
- MultiMedica (IT)
- Stockholm South General Hospital (SE)
- Axis Multispecialty Hospital (IN)
- Emory Clinic (US)
- Centro Oncológico de Galicia (ES)
- Canterbury Health Laboratories (NZ)
- Basavatarakam Indo American Cancer Hospital and Research Institute (IN)
- Complejo Hospitalario de Navarra (ES)
- Hospital Prof. Dr. Fernando Fonseca (PT)
- NHS Highland (GB)
- Azienda Unità Sanitaria Locale di Ferrara (IT)
- Saint Göran Hospital (SE)
- St. Luke's Hospital (GR)
- St. Vincent Hospital (US)
- Cancer Trials Ireland (IE)
- East Cheshire NHS Trust (GB)
- University Hospital St. Ivan Rilski (BG)
- Hirslanden Klinik Aarau (CH)
- Fribourg Development Agency (CH)
- University Hospital Dr. Georgi Stranski (BG)
- Lusíada University of Lisbon (PT)
- Azienda Ospedaliero Universitaria di Sassari (IT)
- LETO Maternity Hospital (GR)
- University Hospital of Geneva (CH)
- Ospedale Sant'Anna (IT)
- Institut Català d'Oncologia (ES)
- Sivas State Hospital (TR)
- Space Hellas (Greece) (GR)
- University Medical Center Hamburg-Eppendorf (DE)
- Casa di Cura Villa Garda (IT)
- Sault Area Hospital (CA)
- Hospital Universitario Quirónsalud Madrid (ES)
- Catholic University Our Lady of Good Counsel (AL)
- Hospital General de Granollers (ES)
- University Hospital Schleswig-Holstein (DE)
- Instituto de Investigación Biosanitaria de Granada (ES)
- Mid Essex Hospital Services NHS Trust (GB)
- Hospital Clínic de Barcelona (ES)
- Azienda Ospedaliero-Universitaria Careggi (IT)
- Pusan National University Hospital (KR)
- Hospital Universitario Virgen de las Nieves (ES)
- Institute of Oncology NN Petrov (RU)
- Hospital Sant Pau i Santa Tecla (ES)
- Hospital Universitário Evangélico de Curitiba (BR)
- Complejo Hospitalario de Jaén (ES)
- 9th City Clinical Hospital (BY)
- Instituto Nacional de Cancerología (CO)
- Cancer Hospital and Research Institute (IN)
- Autonomous University of Lisbon (PT)
- Azienda USL di Bologna (IT)
- NIHR Bristol Biomedical Research Centre (GB)
- Helios Universitätsklinikum Wuppertal (DE)
- Colchester Hospital (GB)
- Peninsula Health (AU)
- Breast Center (CH)
- Hygeia Hospital (GR)
- Liga Nacional Contra el Cáncer (GT)
- HM Hospitales (ES)
- Universitäts Frauenklinik (DE)
- Apollo Hospitals (IN)
- Universitätsklinik für Strahlentherapie (DE)
- Instituto Nacional de Enfermedades Neoplásicas (PE)
- EsSALUD (PE)
- European Organisation for Research and Treatment of Cancer (BE)
- Newcastle upon Tyne Hospital (GB)
- Osakidetza (ES)
- Instituto Alexander Fleming (AR)
- Bristol Clinical Commissioning Group (GB)
- Foundation for Clinical and Applied Cancer Research (CO)
- Vall d'Hebron Hospital Universitari (ES)
- Hospital da Luz (PT)
- Shaukat Khanum Memorial Cancer Hospital and Research Center (PK)
- Centre Intégré de Santé et Services Sociaux de Chaudière-Appalache (CA)
- Johns Hopkins Children's Center (US)
- Hospital Del Mar (ES)
- Centre Oscar Lambret (FR)
- AZ Turnhout (BE)
- Mysore Medical College (IN)
- Athens Medical Center (GR)
- Zuyderland Medisch Centrum (NL)
- Aichi Cancer Center (JP)
- Centre Hospitalier Universitaire de Liège (BE)
- Hirslanden Klinik St. Anna (CH)
- Clinica Universidad de Navarra (ES)
- Iridium Kankernetwerk (BE)
- The Cancer Institute Hospital (JP)
- Centro de Implantología Cirugía Oral y Maxilofacial (ES)
- Istanbul Eye Hospital (TR)
- Surgical Specialties (United States) (US)
- Washington School of Psychiatry (US)
- Centro de Educación Médica e Investigaciones Clínicas Norberto Quirno (AR)
- Fundación Arturo López Pérez (CL)
- Netherlands Comprehensive Cancer Organisation (NL)
- Europa Donna (IT)
- Bank of Cyprus Oncology Center (CY)
- Hospital Universitario Lucus Augusti (ES)
- Princess Alexandra Hospital (GB)
- Oxford University Hospitals NHS Trust (GB)
- Fondazione Poliambulanza Istituto Ospedaliero (IT)
- Instituto Português de Oncologia de Coimbra Francisco Gentil (PT)
- Hospital Universitari Sant Joan de Reus (ES)
- University Hospitals of Derby and Burton NHS Foundation Trust (GB)
- Hospital Sírio-Libanês (BR)
- Square Hospitals (BD)
- Fondazione Audiologica Varese (IT)
- Hospital Universitario Virgen de la Arrixaca (ES)
- Metropolitan Hospital (GR)
- Johns Hopkins Hospital (US)
- The Maria Sklodowska-Curie National Research Institute of Oncology (PL)
- University Hospitals Sussex NHS Foundation Trust (GB)
- Gold Coast Health (AU)
- Hospital Privado (AR)
- Istituti di Ricovero e Cura a Carattere Scientifico (IT)
- Immanuel Krankenhaus (DE)
- St. James's Hospital (IE)
- Hospital de Clínicas (UY)
- University Hospital Medical Center Bezanijska kosa (RS)
- Austrian Breast & Colorectal Cancer Study Group (AT)
- Helios Hospital Berlin-Buch (DE)
- Hospital Clínico Universitario Virgen de la Victoria (ES)
- Abu Dhabi Falcon Hospital (AE)
- Klinikum Ernst von Bergmann (DE)
- Hospital Virgen de los Lirios (ES)
- Patient Advocate Foundation (US)
- Hospital Universitario Severo Ochoa (ES)
- St. Paul's Hospital Millennium Medical College (ET)
- Canterbury District Health Board (NZ)
- Ipswich Hospital (GB)
- Maastro Clinic (NL)
- Hospital Universitario Ramón y Cajal (ES)
- Alfred Health (AU)
- Acıbadem Adana Hospital (TR)
- Medical Research Foundation (GB)
- The Patients Association (GB)
- Azienda Ospedaliera Universitaria Pisana (IT)
- Istituti Ospitalieri di Cremona (IT)
- Hospital Universitario Infanta Cristina (ES)
- Agenzia Sanitaria Regionale Abruzzo (IT)
- University of Southampton (GB)
- All India Institute of Medical Sciences Rishikesh (IN)
- Istituto di Ricovero e Cura a Carattere Scientifico San Raffaele (IT)
- University of Florence (IT)
- University College London (GB)
- University of Zielona Góra (PL)
- McGill University (CA)
- Medical University Pleven (BG)
- University of Colorado Anschutz Medical Campus (US)
- Università della Svizzera italiana (CH)
- K S Hegde Medical Academy (IN)
- European Institute of Oncology (IT)
- University of Naples Federico II (IT)
- Medical University of Vienna (AT)
- Kasturba Medical College, Manipal (IN)
- University of Newcastle Australia (AU)
- University of Glasgow (GB)
- Jeonbuk National University (KR)
- Ludwig-Maximilians-Universität München (DE)
- University of Gothenburg (SE)
- Universidad de Navarra (ES)
- University of Hong Kong (HK)
- Yokohama City University (JP)
- University of Sheffield (GB)
- Praxis (EE)
- University of Lübeck (DE)
- University of Twente (NL)
- Stanford University (US)
- University of Lausanne (CH)
- University of Edinburgh (GB)
Publication Details
- Journal
- npj Breast Cancer
- Published
- 2025-10-28
- DOI
- https://doi.org/10.1038/s41523-025-00824-w
- Primary Topic
- Delphi Technique in Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Breast Cancer Research Foundation
- Association of Breast Surgery
- National Institute for Health and Care Research
- Department of Health and Social Care
- Royal College of Surgeons of England