Clinical trial · Interventional
A Study of R1507 in Participants With Recurrent or Refractory Sarcoma
A Phase II Trial of R1507, a Recombinant Human Monoclonal Antibody to the Insulin-Like Growth Factor-1 Receptor for the Treatment of Participants With Recurrent or Refractory Ewing's Sarcoma, Osteosarcoma, Synovial Sarcoma, Rhabdomyosarcoma and Other Sarcomas.
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Why stopped (as posted): The study was closed to further enrollment due to the decision by the Sponsor to discontinue development of R1507.
Summary
Brief summary (as posted)
The study was primarily designed to determine objective response, progression-free survival (PFS), and the safety and tolerability of R1507 in participants with recurrent or refractory Ewing's sarcoma, osteosarcoma, synovial sarcoma, rhabdomyosarcoma and other sarcomas including alveolar soft part sarcoma, desmoplastic small round cell tumor, extraskeletal myxoid chondrosarcoma, clear cell sarcoma, and myxoid liposarcoma.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Sarcoma | Sarcoma | ONTOLOGY_EXACT | 0.98 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| RG1507 | Drug | Teprotumumab | ALIAS |
Design
Arms and outcomes
Arms (12)
- type
- EXPERIMENTAL
- label
- Cohort 1: Ewings Sarcoma Primary Cohort
- description
- Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 1 includes individuals with Ewing's sarcoma who have relapsed within 24 weeks after diagnosis and have received two or more prior chemotherapy regimens.
- interventionNames
- Drug: RG1507
- type
- EXPERIMENTAL
- label
- Cohort 2: Ewings Sarcoma Secondary Cohort
- description
- Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 2 includes individuals with Ewing's sarcoma who have relapsed more than 24 weeks after diagnosis and have only received one prior chemotherapy regimen.
- interventionNames
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 2 Years
Show eligibility criteria text
Inclusion Criteria: * progressive, recurrent or refractory Ewing's sarcoma, or recurrent or refractory osteosarcoma, synovial sarcoma, rhabdomyosarcoma, or other sarcomas of the following sub-types: alveolar soft part sarcoma, desmoplastic small round cell tumor, extraskeletal myxoid chondrosarcoma, clear cell sarcoma and myxoid liposarcoma; * Cohort 3 only: age must be \>= 2 and \<= 21 years Exclusion Criteria: * clinically significant unrelated systemic illness which would compromise the participant's ability to tolerate the investigational agent, or interfere with the study procedures or results; * known hypersensitivity to any of the components of R1507 or prior hypersensitivity reactions to monoclonal antibodies; * treatment (within the past 2 weeks) with pharmacologic doses of corticosteroids or other immunosuppressive agents; * current or prior therapy with insulin-like growth factor (IGF) inhibitor (monoclonal or specific kinase inhibitor); * history of solid organ transplant; * other malignant disease diagnosed within the previous 5 years, excluding intra-epithelial cervical neoplasia or non-melanoma skin cancer; * active central nervous system disease
References
Publications (2)
- DERIVEDAsmane I, Watkin E, Alberti L, Duc A, Marec-Berard P, Ray-Coquard I, Cassier P, Decouvelaere AV, Ranchere D, Kurtz JE, Bergerat JP, Blay JY. Insulin-like growth factor type 1 receptor (IGF-1R) exclusive nuclear staining: a predictive biomarker for IGF-1R monoclonal antibody (Ab) therapy in sarcomas. Eur J Cancer. 2012 Nov;48(16):3027-35. doi: 10.1016/j.ejca.2012.05.009. Epub 2012 Jun 7. PMID 22682017
- DERIVEDPappo AS, Patel SR, Crowley J, Reinke DK, Kuenkele KP, Chawla SP, Toner GC, Maki RG, Meyers PA, Chugh R, Ganjoo KN, Schuetze SM, Juergens H, Leahy MG, Geoerger B, Benjamin RS, Helman LJ, Baker LH. R1507, a monoclonal antibody to the insulin-like growth factor 1 receptor, in patients with recurrent or refractory Ewing sarcoma family of tumors: results of a phase II Sarcoma Alliance for Research through Collaboration study. J Clin Oncol. 2011 Dec 1;29(34):4541-7. doi: 10.1200/JCO.2010.34.0000. Epub 2011 Oct 24. PMID 22025149