A Study to Assess the Safety and Tolerability of CFT8634 in Locally Advanced or Metastatic SMARCB… (NCT05355753) | Clinical Trial Compass
TerminatedPhase 1
A Study to Assess the Safety and Tolerability of CFT8634 in Locally Advanced or Metastatic SMARCB1-Perturbed Cancers, Including Synovial Sarcoma and SMARCB1-Null Tumors
Stopped: High levels of BRD9 degradation did not result in sufficient efficacy in heavily pre-treated synovial sarcoma and SMARCB1-null solid tumor patients treated with CFT8634 as a single agent.
United States49 participantsStarted 2022-03-25
Plain-language summary
This is an open-label, non-randomized, first-in-human Phase 1/2 study designed to evaluate the safety and tolerability of CFT8634 in subjects with synovial sarcoma and SMARCB1-null tumors who: have received prior systemic therapy; have relapsed/refractory tumors; have unresectable or metastatic disease; and are not candidates for available therapies known to confer clinical benefit. The study will characterize the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary antitumor activity of CFT8634.
Who can participate
Age range
12 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Subject (and legal guardian where applicable) is (are) willing and able to provide signed informed consent (or assent, where applicable) and can follow protocol requirements
. Subject has histologically or cytologically confirmed synovial sarcoma or SMARCB1-null sold tumor that is relapsed/refractory, and unresectable or metastatic; the subject must not be a candidate for available therapies that are known to confer clinical benefit
. Subject must be:
. Subject must be able to safely swallow capsules
. Subject must have measurable disease as defined by RECIST v1.1
. Subject must have Eastern Cooperative Oncology Group performance status ≤2 or Lansky performance scale (LK scale) ≥ 60
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Frequency and severity of AEs and serious adverse events (SAEs)
Timeframe: From screening until at least 30 days after completion of study treatment
2
Number of subjects with changes between baseline and post-baseline safety assessments based on safety laboratory results graded by CTCAE v5.0
Timeframe: From screening until at least 30 days after completion of study treatment
3
Frequency of dose interruptions and dose reductions
Timeframe: From first dose until end of treatment
4
Incidence of dose limiting toxicities (DLTs)
Timeframe: From first dose until 28 days after first dose
. Subject must have adequate organ function, defined as:
. Bone marrow function: absolute neutrophil count ≥1.0 x 109/L independent of growth factor support for ≤7 days prior to first dose of study drug for granulocyte colony-stimulating factor and ≤14 days prior to first dose of study drug for peg-filgrastim; hemoglobin ≥8 g/dL independent of transfusion support for ≤7 days prior to first dose of study drug; platelet count ≥75 x 109 /L independent of transfusion support for ≤3 days prior to first dose of study drug
Exclusion criteria
. Subject has had major surgery within 21 days prior to the planned first dose of CFT8634
. Subject has received standard of care or investigational systemic anti-neoplastic therapy within 14 days or 5 half-lives, whichever is shorter, prior to the planned first dose of CFT8634
. Subject has received radiation therapy within 14 days prior to the planned first dose of CFT8634
. Prior treatment with BRD9 degrader
. Subject has central nervous system (CNS) involvement (primary tumor or metastatic disease), except in the following circumstances:
. Subjects with previously treated brain metastases may be permitted to participate provided they are stable (without evidence of progression by imaging 14 days prior to the first dose of study drug and any neurologic symptoms have stabilized), have no evidence of new or enlarging brain metastases, and if they are taking corticosteroids, they are on stable or tapering doses for at least 7 days prior to first dose of study drug. Antiseizure therapy is permitted provided the medication is not otherwise excluded and seizures have been controlled for at least 28 days since the last antiseizure medication adjustment
. Subjects with asymptomatic brain metastases found on Screening magnetic resonance imaging (MRI) may be permitted to be entered into the study without prior radiation therapy to the brain if they do not require immediate surgical or radiation therapy in the opinion of the treating investigator and in the opinion of a radiation therapy or neurosurgical consultant
. Subject has any evidence of a CNS bleed including intra-tumoral hemorrhage