A Rollover Study Evaluating Sotorasib With or Without Panitumumab in Participants With KRAS p.G12C Mutation
A Rollover Study of Sotorasib With or Without Panitumumab for the Treatment of Cancer Subjects With KRAS p.G12C Mutation Previously Treated in an Amgen-Sponsored Study
3 other identifiers
interventional
14
8 countries
9
Brief Summary
The primary objective of the study is to evaluate the safety and tolerability of the continuation of sotorasib with or without panitumumab and/or other anti-cancer therapies in participants continuing to derive benefit in Amgen-sponsored protocols.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Jan 2026
9 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 8, 2025
CompletedFirst Posted
Study publicly available on registry
September 15, 2025
CompletedStudy Start
First participant enrolled
January 2, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 2, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
January 2, 2028
April 9, 2026
April 1, 2026
2 years
September 8, 2025
April 8, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of Participants with Treatment-Emergent Adverse Events (TEAEs)
Incidence and severity of TEAEs, clinically significant changes in vital signs, and clinical laboratory tests will be reported as TEAEs.
Up to approximately 18 months
Study Arms (2)
Arm A: Sotorasib
EXPERIMENTALSotorasib will be administered once daily, orally in 28-day treatment cycles for up to approximately 18 months or until withdrawal of consent, lost to follow-up, or death, whichever occurs first.
Arm B: Sotorasib in Combination with Panitumumab
EXPERIMENTALSotorasib will be administered once daily, orally, in combination with Panitumumab intravenous (IV) infusion every two weeks on Day 1 and Day 15 in 28-day treatment cycles. Treatment will continue for up to approximately 18 months or until withdrawal of consent, lost to follow-up, or death, whichever occurs first.
Interventions
Sotorasib will be administered orally as a tablet.
Panitumumab will be administered as an IV infusion.
Eligibility Criteria
You may qualify if:
- Signed informed consent.
- Age ≥ 18 years.
- Life expectancy of \> 3 months, in the opinion of the investigator.
- Ability to take oral medications and willing to record daily adherence to sotorasib through the use of a written diary.
- Participant is currently receiving treatment with sotorasib alone or in combination therapy in an Amgen-sponsored trial that has met its endpoints or otherwise will be stopping (also referred to as parent study) and are continuing to receive clinical benefit in the opinion of the investigator.
- For a participant on combination therapy in their parent study, treatment with other anti-cancer therapies is allowed provided it matches the parent study.
- Eastern Cooperative Oncology Group Performance Status of ≤ 2.
You may not qualify if:
- Participant had permanently discontinued from sotorasib study treatment in the parent study before the parent study's completion.
- Ongoing, unresolved toxicity requiring interruption of sotorasib treatment at the time of the termination of the parent study.
- Local access to commercially available investigational product(s) at no cost to the participant as permitted by local/country regulation.
- Anticipated toxicities of sotorasib study treatment outweigh the clinical benefit to the participant in the opinion of the investigator.
- Participant unlikely to be able to complete all protocol-required procedures, restrictions and requirements, in the judgment of the individual and investigator.
- Significant uncontrolled concomitant disease that could affect compliance with protocol procedures or interpretation of results or that pose a risk to participant safety, in the opinion of the investigator.
- Female participants of childbearing potential unwilling to use protocol-specified method of contraception during treatment and for an additional:
- days after the last dose of sotorasib.
- months after the last dose of panitumumab.
- Female participants who are breastfeeding or who plan to breastfeed while on study through:
- days after the last dose of sotorasib.
- months after the last dose of panitumumab.
- Female participants planning to become pregnant while on study through:
- days after the last dose of sotorasib.
- months after the last dose of panitumumab.
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Amgenlead
Study Sites (9)
Florida Cancer Specialists - Fort Myers
Fort Myers, Florida, 33901, United States
University of Texas MD Anderson Cancer Center
Houston, Texas, 77030, United States
Scientia Clinical Research Ltd
Randwick, New South Wales, 2031, Australia
Centre Leon Berard
Lyon, 69008, France
Evangelische Lungenklinik
Berlin, 13125, Germany
Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Roma, 00168, Italy
National Hospital Organization Hokkaido Cancer Center
Sapporo, Hokkaido, 003-0804, Japan
Universitaetsspital Basel
Basel, 4031, Switzerland
Taichung Veterans General Hospital
Taichung, 40705, Taiwan
Related Links
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
MD
Amgen
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 8, 2025
First Posted
September 15, 2025
Study Start
January 2, 2026
Primary Completion (Estimated)
January 2, 2028
Study Completion (Estimated)
January 2, 2028
Last Updated
April 9, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR
- Time Frame
- Data sharing requests relating to this study will be considered beginning 18 months after the study has ended and either 1) the product and indication have been granted marketing authorization in both the US and Europe or 2) clinical development for the product and/or indication discontinues and the data will not be submitted to regulatory authorities. There is no end date for eligibility to submit a data sharing request for this study.
- Access Criteria
- Qualified researchers may submit a request containing the research objectives, the Amgen product(s) and Amgen study/studies in scope, endpoints/outcomes of interest, statistical analysis plan, data requirements, publication plan, and qualifications of the researcher(s). In general, Amgen does not grant external requests for individual patient data for the purpose of re-evaluating safety and efficacy issues already addressed in the product labelling. Requests are reviewed by a committee of internal advisors. If not approved, a Data Sharing Independent Review Panel will arbitrate and make the final decision. Upon approval, information necessary to address the research question will be provided under the terms of a data sharing agreement. This may include anonymized individual patient data and/or available supporting documents, containing fragments of analysis code where provided in analysis specifications. Further details are available at the URL below.
De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.