Promising combo aims to keep stomach cancer at bay after surgery
NCT ID NCT04592913
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether adding the immunotherapy drug durvalumab to standard chemotherapy (FLOT) before and after surgery helps people with resectable stomach or gastroesophageal junction cancer live longer without the cancer returning. About 957 participants receive either durvalumab or a placebo alongside chemo, followed by surgery and then more durvalumab or placebo. The main goal is to see if the drug combo delays cancer progression or death.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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957 people
The number who actually took part.
- Started
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Nov 2020
- Expected to finish
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Sep 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 200 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Key Inclusion Criteria: * Patients with histologically documented gastric or gastroesophageal junction adenocarcinoma with resectable disease (Stage II or higher per AJCC 8th edition). * Patients must undergo radical surgery. * No prior anti-cancer therapy for the current malignancy. * World Health Organization (WHO)/ECOG performance status of 0 or 1 at enrollment. * Adequate organ and marrow function. * Availability of tumor sample prior to study entry. * Must have a life expectancy of at least 24 weeks. Key Exclusion Criteria: * Patients with peritoneal dissemination or distant metastasis. * Patients with adenosquamous cell carcinoma, squamous cell carcinoma, or GI stromal tumor. * Current or prior use of immunosuppressive medication within 14 days before the first dose of durvalumab. * Contra-indication to any of the study drugs. * History of allogeneic organ transplantation.
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Get notified about this study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Duarte, California, 91010, United States
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Los Angeles, California, 90027, United States
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Los Angeles, California, 90095, United States
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Sylmar, California, 91342, United States
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St. Petersburg, Florida, 33705, United States
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Tallahassee, Florida, 32308, United States
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West Palm Beach, Florida, 33401, United States
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Fort Wayne, Indiana, 46804, United States
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Louisville, Kentucky, 40217, United States
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Boston, Massachusetts, 02215, United States
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New York, New York, 10065, United States
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Rochester, New York, 14642, United States
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Nashville, Tennessee, 37203, United States
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Dallas, Texas, 75390, United States
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Lancaster, Texas, 75216, United States
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Seattle, Washington, 98109, United States
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Buenos Aires, C1431FWO, Argentina
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Ciudad Autonoma Buenos Aires, 1093, Argentina
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Ciudad de Buenos Aires, 1280, Argentina
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Ciudad de Buenos Aires, C1426ANZ, Argentina
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Rosario, 3101, Argentina
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Rosario, S2000DEJ, Argentina
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Charleroi, 6060, Belgium
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Edegem, 2650, Belgium
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Leuven, 3000, Belgium
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Liège, 4000, Belgium
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Roeselare, 8800, Belgium
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Barretos, 14784-400, Brazil
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Natal, 59075-740, Brazil
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Porto Alegre, 90035-903, Brazil
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Porto Alegre, 91350-200, Brazil
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Rio de Janeiro, 20231-050, Brazil
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São José do Rio Preto, 15090-000, Brazil
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São Paulo, 01246-000, Brazil
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Edmonton, Alberta, t6G1Z2, Canada
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North York, Ontario, M2K 1E1, Canada
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Oshawa, Ontario, L1G 2B9,, Canada
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Toronto, Ontario, M5G 2M9, Canada
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Montreal, Quebec, H2X 0A9, Canada
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Montreal, H3T 1E2, Canada
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La Serena, 1720430, Chile
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Santiago, 7500653, Chile
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Santiago, 7500921, Chile
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Talca, 3461341, Chile
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Temuco, 4800827, Chile
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Temuco, 4810218, Chile
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Aalborg, 9000, Denmark
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København Ø, 2100, Denmark
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Odense, 5000, Denmark
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Avignon, 84918, France
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Besançon, 25030, France
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Brest, 29609, France
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Dijon, 21000, France
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Lyon, 69373, France
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Montpellier, 34298, France
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Nantes, 44093, France
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Nice, 06100, France
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Paris, 75012, France
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Paris, 75475, France
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Paris, 75900, France
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Rennes, 35033, France
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Berlin, 13353, Germany
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Dresden, 01307, Germany
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Frankfurt, 60488, Germany
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Hamburg, 20246, Germany
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Hamburg, 20249, Germany
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Heidelberg, 69120, Germany
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Heilbronn, 74078, Germany
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Jena, 7743, Germany
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Mainz Am Rhein, 55131, Germany
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München, 81675, Germany
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Schweinfurt, 97421, Germany
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Tübingen, 72016, Germany
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Budapest, 1122, Hungary
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Győr, 9024, Hungary
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Kecskemét, 6000, Hungary
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Szekszárd, 7100, Hungary
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Szolnok, 5004, Hungary
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Chūōku, 104-0045, Japan
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Hidaka-shi, 350-1298, Japan
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Hirakata-shi, 573-1191, Japan
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Hiroshima, 730-8518, Japan
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Kashiwa, 277-8577, Japan
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Kitaadachi-gun, 362-0806, Japan
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Kochi, 781-8555, Japan
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Kurume-shi, 830-0011, Japan
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Nagoya, 464-8681, Japan
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Niigata, 951-8566, Japan
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Ogaki-shi, 503-8502, Japan
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Osaka, 534-0021, Japan
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Osaka, 541-8567, Japan
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Suita-shi, 565-0871, Japan
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Sunto-gun, 411-8777, Japan
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Tokyo, 135-8550, Japan
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Toyoake-shi, 470-1192, Japan
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Wakayama, 641-8510, Japan
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Yokohama, 241-8515, Japan
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Amsterdam, 1066 CX, Netherlands
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Eindhoven, 5623EJ, Netherlands
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Rotterdam, 3015GD, Netherlands
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Bellavista, CALLAO 2, Peru
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Lima, LIMA 29, Peru
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Lima, Lima 32, Peru
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Lima, LIMA 34, Peru
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San Isidro, 27, Peru
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Bialystok, 15-027, Poland
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Gdansk, 80-952, Poland
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Krakow, 30-688, Poland
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Lodz, 93-513, Poland
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Poznan, 60-569, Poland
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Poznan, 61-866, Poland
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Warsaw, 02-034, Poland
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Warsaw, 04-141, Poland
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Kaluga, 248007, Russia
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Moscow, 111123, Russia
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Moscow, 115478, Russia
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Moscow, 125284, Russia
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Novosibirsk, 630108, Russia
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Obninsk, 249036, Russia
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Saint Petersburg, 197089, Russia
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Hwasun-gun, 58128, South Korea
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Seongnam-si, 13620, South Korea
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Seoul, 03080, South Korea
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Seoul, 03722, South Korea
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Seoul, 06351, South Korea
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Seoul, 06591, South Korea
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Barcelona, 08025, Spain
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Barcelona, 08035, Spain
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Barcelona, 08908, Spain
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Madrid, 28007, Spain
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Madrid, 28034, Spain
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Málaga, 29009, Spain
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Ourense, 32005, Spain
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Santander, 39008, Spain
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Seville, 41013, Spain
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Valencia, 46010, Spain
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Kaohsiung City, 807, Taiwan
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Taichung, 40443, Taiwan
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Tainan, 70403, Taiwan
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Taipei, 10048, Taiwan
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Taipei, 112, Taiwan
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Taoyuan City, 333, Taiwan
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Adana, 01120, Turkey (Türkiye)
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Ankara, 06340, Turkey (Türkiye)
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Erzurum, 25240, Turkey (Türkiye)
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Istanbul, 34098, Turkey (Türkiye)
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Istanbul, 34457, Turkey (Türkiye)
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Samsun, 55139, Turkey (Türkiye)
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Cambridge, CB2 0QQ, United Kingdom
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Dundee, DD1 9SY, United Kingdom
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Glasgow, G12 0YN, United Kingdom
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Leicester, LE2 7LZ, United Kingdom
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London, EC1A 7BE, United Kingdom
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Manchester, M20 4BX, United Kingdom
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Oxford, OX3 7LE, United Kingdom
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Surrey, SM2 5PT, United Kingdom
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- One small incision vs several: robotic stomach cancer surgery put to the test
- Can PET scans reveal which stomach cancers will respond to immunotherapy?
- Experimental drug velzatinib offered to GIST patients who have run out of options
- Can a direct hit to tumors make immunotherapy work better?
- Can a vaccine stop GI cancers from returning?
- Muscle loss may predict who struggles after cancer surgery