Hope for Tough-to-Treat bone cancer: new combo trial launches
NCT ID NCT05440786
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether adding the drug abemaciclib to standard chemotherapy can help people with Ewing's sarcoma whose cancer has returned or not responded to treatment. About 46 children and young adults will take part. The goal is to see if the combination slows tumor growth better than chemotherapy alone.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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46 people
The number who actually took part.
- Started
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Sep 2022
- Expected to finish
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Dec 2026
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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1 year to 39 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.
Inclusion Criteria: * Diagnosis of Ewing's sarcoma or Ewing's sarcoma-like tumor by institutional pathologist. The original pathological report is required. Repeat biopsy at progression is not required * Refractory disease or confirmed radiological progression or recurrence following first or later line of treatment of Ewing's sarcoma or Ewing's sarcoma-like tumor \-- Must have one measurable or evaluable lesion per RECIST 1.1 * Adequate performance status based on age * For participants less than (\<)16 years of age, a Lansky score greater than or equal to (≥)50, or * For participants ≥16 years of age, a Karnofsky score ≥50 * Participants must have discontinued all previous treatments for cancer or investigational agents ≥7 days after the last dose and must have recovered from the acute effects * Adequate hematologic and organ function less than or equal to (≤)14 days prior to Day 1 of Cycle 1: * Absolute neutrophil count ≥1000/microliter (µL) * Platelets ≥75,000/cubic millimeter (mm³) * Hemoglobin ≥8 grams per deciLiter (g/Dl) (≥100 grams per Liter \[g/L\]) * Total bilirubin ≤1.5 times (×) upper limit of normal (ULN) * Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤3 × ULN * Creatinine clearance or calculated glomerular filtration rate (GFR) ≥60 milliliters per minute per square meter (Ml/min/m²) or serum creatinine based on age/gender * Female participants of childbearing potential must have a negative urine or serum pregnancy test * Body weight ≥10 kilograms (kg) * Must be able to swallow and/or have a gastric/nasogastric tube \-- Participants in the European Union must be able to swallow intact capsules * Stable or decreasing dose of steroids at least 7 days prior to enrollment * Life expectancy of at least 8 weeks and able to complete at least 1 cycle of treatment * Participants/caregivers are able and willing to make themselves available for the duration of the study and are willing to follow study procedures, including adherence to the pharmacokinetic (PK) sampling schedule Exclusion Criteria: * Participants with severe and/or uncontrolled concurrent medical disease or psychiatric illness/social situation that in the opinion of the investigator could cause unacceptable safety risks or compromise compliance with the protocol * Participants with an active fungal, bacterial, and/or known severe viral infection including, but not limited to, human immunodeficiency virus (HIV) or viral (A, B, or C) hepatitis. * Participants who have had allogeneic bone marrow or solid organ transplant * Surgery: Participants who have had, or are planning to have, the following invasive procedures: * Major surgical procedure, laparoscopic procedure, or significant traumatic injury within 28 days prior to enrollment * Surgical or other wounds must be adequately healed prior to enrollment * Female participants who are pregnant or breastfeeding * Have received any prior cyclin-dependent kinase (CDK) 4 and 6 inhibitor * Progression during prior treatment with irinotecan and/or temozolomide * Have a known intolerability or hypersensitivity to any of the study treatments or dacarbazine * Diagnosed and/or treated additional malignancy within 3 years prior to enrollment
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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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Centre Leon Berard
Lyon, Auvergne-Rhône-Alpes, 69373 CEDEX 08, France
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Charité Campus Virchow-Klinikum
Berlin, 13353, Germany
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Fondazione Policlinico Universitario Agostino Gemelli
Rome, Lazio, 00168, Italy
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Hospital General Universitario Gregorio Marañon
Madrid, 28007, Spain
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Hospital General Universitario Gregorio Marañon
Madrid, 28009, Spain
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Hospital Infantil Universitario Niño Jesús
Madrid, Madrid, Comunidad de, 28009, Spain
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Hospital Sant Joan de Déu
Esplugues de Llobregat, Barcelona [Barcelona], 08950, Spain
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Hospital Universitari Vall d'Hebron
Barcelona, Barcelona [Barcelona], 08035, Spain
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Hospital Universitari i Politecnic La Fe
Valencia, 46026, Spain
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Hospital Universitario Fundación Jiménez Díaz
Madrid, 28040, Spain
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Hospital Universitario La Paz
Madrid, Madrid, Comunidad de, 28046, Spain
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Hospital Universitario La Paz
Madrid, 28046, Spain
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Hospital Universitario Virgen Del Rocio
Seville, 41013, Spain
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Hospital de la Santa Creu i Sant Pau
Barcelona, Catalunya [Cataluña], 08041, Spain
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Hyogo Prefectural Kobe Children's Hospital
Kobe, Hyōgo, 650-0047, Japan
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IRCCS Istituto Ortopedico Rizzoli
Bologna, 40136, Italy
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Institut Bergonié - Centre Régional de Lutte Contre Le Cancer de Bordeaux et Sud Ouest
Bordeaux, Aquitaine, 33076, France
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Kyushu University Hospital
Fukuoka, 812-8582, Japan
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Lifespan Cancer Institute
Providence, Rhode Island, 02906, United States
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National Cancer Center Hospital
Chuo-ku, Tokyo, 104-0045, Japan
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Peter MacCallum Cancer Centre
Melbourne, Victoria, 3000, Australia
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Phoenix Children's Hospital
Phoenix, Arizona, 85016, United States
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Riley Hospital for Children at Indiana University Health
Indianapolis, Indiana, 46202, United States
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Royal Children's Hospital
Melbourne, Victoria, 3052, Australia
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The Children's Hospital at Westmead
Westmead, New South Wales, 2145, Australia
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The Regents of the University of California - Los Angeles (UCLA Pediatrics)
Los Angeles, California, 90095-1752, United States
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Universitaetsklinikum Freiburg
Freiburg im Breisgau, Baden-Wurttemberg, 79106, Germany
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Universitätsklinikum Essen
Essen, North Rhine-Westphalia, 45122, Germany
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Washington University
St Louis, Missouri, 63110, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Blood clues could unlock new ewing sarcoma treatments
- Combination therapy targets resistant breast cancer