Clinical trial · Interventional
Safety Study of PLX108-01 in Patients With Solid Tumors
A Phase 1 Study to Assess Safety, Pharmacokinetics, and Pharmacodynamics of PLX3397 in Patients With Advanced, Incurable, Solid Tumors in Which the Target Kinases Are Linked to Disease Pathophysiology
NCT01004861CI-TRIAL-00055769completedPhase 1Results postedClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
PLX3397 is a selective inhibitor of Fms, Kit, and oncogenic Flt3 activity. The primary objective of this study is to evaluate the safety and pharmacokinetics of orally administered PLX3397 in patients with advanced, incurable, solid tumors in which these target kinases are linked to disease pathophysiology. The secondary objective is to measure the pharmacodynamic activity of PLX3397 via blood, plasma and urine biomarkers of Fms activity.
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 |
|---|---|---|---|
| Solid Tumor | Solid Neoplasm | CURATED_BROADER | 0.80 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| PLX3397 | Drug | Pexidartinib | ALIAS |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- PLX3397
- interventionNames
- Drug: PLX3397
Primary outcomes (9)
- measure
- Summary of Derived Best Tumor Response Per the Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 - Dose Escalation (Efficacy Evaluable Population)
- timeFrame
- Every 2 months beginning Cycle 3, Day 1 until disease progression (up to approximately 30 months postdose)
- description
- Best overall tumor response (complete response \[CR\], partial response \[PR\], stable disease \[SD\], progressive disease \[PD\]) is reported, including participants who were not evaluable (NE). RECIST v1.1 for target lesions are assessed by magnetic resonance imaging, computed tomography, or positron emission tomography-computed tomography and are summarized as: CR, Disappearance of all target lesions. Any pathological lymph nodes must have reduction in short axis to \<10 mm; PR, At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters; PD, at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (includes the baseline sum). In addition, the sum must also demonstrate an absolute increase of at least 5 mm; SD, Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum diameters while on study.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Age 18 and older * Solid tumors refractory to standard therapy * For the Extension cohorts, patients must have measurable disease by RECIST criteria and meet the following disease-specific criteria: * For advanced or recurrent mucoepidermal carcinoma (MEC) of the salivary gland, patients must not be candidates for curative surgery or radiotherapy. * For pigmented villo-nodular synovitis (PVNS), patients must have a histologically confirmed diagnosis of inoperable progressive or relapsing PVNS, or resectable tumor requesting mutilating surgery, as well as demonstrated progressive disease in the last 12 months. * For gastrointestinal stromal tumors (GIST), patients must have failed previous therapy with imatinib and sunitinib. Patients with known PDGFR mutations are excluded, but mutation testing is not required for study entry. * For anaplastic thyroid cancer (ATC), patients must have histologically or cytologically diagnosed advanced ATC. * For metastatic solid tumors with documented malignant pleural and/or peritoneal effusions, patients must not be receiving specific therapy for the effusion or have an indwelling drain. * Eastern Cooperative Oncology Group performance status 0 or 1 * Life expectancy \>= 3 months * Adequate hepatic, renal, and bone marrow function Exclusion Criteria: * Specific anti-cancer therapy within 3 weeks of study start * Uncontrolled intercurrent illness * Refractory nausea or vomiting, or malabsorption * Mean corrected QT interval (QTc) \>= 450 msec (for males) or QTc \>= 470 msec (for females)
References
Publications (3)
- DERIVEDTap WD, Singh AS, Anthony SP, Sterba M, Zhang C, Healey JH, Chmielowski B, Cohn AL, Shapiro GI, Keedy VL, Wainberg ZA, Puzanov I, Cote GM, Wagner AJ, Braiteh F, Sherman E, Hsu HH, Peterfy C, Gelhorn HL, Ye X, Severson P, West BL, Lin PS, Tong-Starksen S. Results from Phase I Extension Study Assessing Pexidartinib Treatment in Six Cohorts with Solid Tumors including TGCT, and Abnormal CSF1 Transcripts in TGCT. Clin Cancer Res. 2022 Jan 15;28(2):298-307. doi: 10.1158/1078-0432.CCR-21-2007. Epub 2021 Oct 29. PMID 34716196
- DERIVEDLewis JH, Gelderblom H, van de Sande M, Stacchiotti S, Healey JH, Tap WD, Wagner AJ, Pousa AL, Druta M, Lin CC, Baba HA, Choi Y, Wang Q, Shuster DE, Bauer S. Pexidartinib Long-Term Hepatic Safety Profile in Patients with Tenosynovial Giant Cell Tumors. Oncologist. 2021 May;26(5):e863-e873. doi: 10.1002/onco.13629. Epub 2020 Dec 24. PMID 33289960
- DERIVEDTap WD, Wainberg ZA, Anthony SP, Ibrahim PN, Zhang C, Healey JH, Chmielowski B, Staddon AP, Cohn AL, Shapiro GI, Keedy VL, Singh AS, Puzanov I, Kwak EL, Wagner AJ, Von Hoff DD, Weiss GJ, Ramanathan RK, Zhang J, Habets G, Zhang Y, Burton EA, Visor G, Sanftner L, Severson P, Nguyen H, Kim MJ, Marimuthu A, Tsang G, Shellooe R, Gee C, West BL, Hirth P, Nolop K, van de Rijn M, Hsu HH, Peterfy C, Lin PS, Tong-Starksen S, Bollag G. Structure-Guided Blockade of CSF1R Kinase in Tenosynovial Giant-Cell Tumor. N Engl J Med. 2015 Jul 30;373(5):428-37. doi: 10.1056/NEJMoa1411366. PMID 26222558