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Selinexor Plus Gemcitabine in Selected Advanced Soft-tissue Sarcoma and Osteosarcoma

Phase I/II Randomized Clinical Trial of Selinexor Plus Gemcitabine in Selected Advanced Soft-tissue Sarcoma and Osteosarcoma

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04595994
Acronym
SeliSarc
Enrollment
14
Registered
2020-10-22
Start date
2020-09-02
Completion date
2026-05-31
Last updated
2024-01-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sarcoma,Soft Tissue

Brief summary

Phase I-II, randomized, open-label, multicenter, international clinical trial Patients with advanced soft-tissue sarcoma (undifferentiated pleomorphic sarcoma, leiomyosarcoma, alveolar soft-part sarcoma) and osteosarcoma will receive selinexor in combination with gemcitabine.

Detailed description

Phase I-II, randomized, open-label, multicenter, international clinical trial Patients with advanced soft-tissue sarcoma (undifferentiated pleomorphic sarcoma, leiomyosarcoma, alveolar soft-part sarcoma) and osteosarcoma will receive selinexor in combination with gemcitabine. In the Phase I part safety and toxicity of the combination will be assessed using a 3+3 design. The recommended dose for the Phase II will be determined. In the Phase II part there will be 4 different cohorts: Cohort 1: Undifferentiated pleomorphic sarcoma (UPS) Cohort 2: Leiomyosarcoma (LMS) Cohort 3: Alveolar soft-part sarcoma (ASPS) Cohort 4: Osteosarcoma Patients will be randomized for phase II part only (except in cohort 3) in an open-label way to receive selinexor in combination with gemcitabine versus gemcitabine alone

Interventions

DRUGSelinexor

For both interventional ( Selinexor and Gencitabine) Dose-limiting toxicity (DLT) will be applied only to either of the following toxicities occurring during the first treatment cycle (days 1-21).

Sponsors

Grupo Espanol de Investigacion en Sarcomas
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

unique arms for each possible dose

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Patients must provide written informed consent prior to performance of any study-specific procedures and must be willing to comply with treatment and follow-up. Informed consent must be obtained prior to start of the screening process. Procedures conducted as part of the patient's routine clinical management (e.g. imaging tests), obtained prior to signature of informed consent may be used for screening or baseline purposes as long as these procedures are conducted as specified in the protocol. 2. Age: 18-80 years 3. Histologic diagnosis of soft tissue sarcoma (undifferentiated pleomorphic sarcoma, leiomyosarcoma, alveolar soft part sarcoma) or osteosarcoma confirmed by central pathology review prior to enrolment with an archive tumor sample. A fresh paraffin embedded tumor tissue block must be provided for all subjects for biomarker analysis before and (when feasible) after treatment with investigational products. 4. Metastatic/advanced disease in progression in the last 6 months. 5. Patients have previously received at least one previous line of systemic therapy 6. Measurable disease according to RECIST 1.1 criteria. 7. Eastern Cooperative Oncology Group (ECOG) Performance Status of 0-1. 8. Adequate hepatic, renal, cardiac, and hematologic function. 9. Laboratory tests as follows: * Absolute neutrophil count ≥ 1,500/mm³ * Platelet count ≥ 100,000/mm³ * Bilirubin ≤ 1.5 mg/dL * AST and ALT ≤ 2.5 times upper limit of normal * Creatinine ≤ 1.5 mg/dL 10. Left ventricular ejection fraction ≥ 50% by echocardiogram or MUGA scan. 11. Females of childbearing potential must have a negative serum or urine pregnancy test within 72 hours prior to enrollment and agree to use birth control measures during study treatment and for 3 months after its completion. Patients must not be pregnant or nursing at study entry. Women/men of reproductive potential must have agreed to use an effective contraceptive method.

Exclusion criteria

1. Three or more previous lines of chemotherapy 2. Prior selinexor or another XPO1 inhibitor treatment. 3. Administration of a previous gemcitabine-containing treatment. 4. Any concurrent medical condition or disease (e.g. uncontrolled active hypertension, uncontrolled active diabetes, active systemic infection, etc.) that is likely to interfere with study procedures. 5. Uncontrolled active infection requiring parenteral antibiotics, antivirals, or antifungals within 1 week prior to Cycle 1 Day 1 (C1D1). Patients on prophylactic antibiotics or with a controlled infection within 1 week prior to C1D1 are acceptable. 6. Pregnant or breastfeeding females. 7. Body surface area (BSA) \<1.4 m2 at baseline, calculated by the Du Bois(31) or osteller(32) method. 8. Life expectancy of less than 3 months. 9. Major surgery within 4 weeks prior to C1D1. 10. Any active gastrointestinal dysfunction interfering with the patient's ability to swallow tablets, or dysfunction that could interfere with absorption of study treatment. 11. Inability or unwillingness to take supportive medications such as anti-nausea and anti-anorexia agents as recommended by the NCCN CPGO for antiemesis and anorexia/cachexia (palliative care). 12. Any active, serious psychiatric, medical, or other conditions/situations that, in the opinion of the Investigator, could interfere with treatment, compliance, or the ability to give informed consent. 13. Presence of brain or central nervous system metastases, unless they are controlled (patients with treated and stable metastasis are eligible).

Design outcomes

Primary

MeasureTime frameDescription
Maximum tolerated dose (MTD)6 monthsTo determine the maximum tolerated dose (MTD) or the recommended dose for phase II of Selinexor plus gemcitabine.

Secondary

MeasureTime frameDescription
Safety profile according to CTCAE 5.0.6 monthsSafety profile of the experimental treatment, through assessment of adverse event type, incidence, severity, time of appearance, related causes, as well as physical explorations and laboratory tests.
Objective response rate (ORR).6 monthsObjective Response Rate (ORR): ORR is defined as the number of subjects with a Best Overall Response (BOR) of Complete Response (CR) or Partial Response (PR) divided by the number of response evaluable subjects (according to RECIST 1.1 criteria).
Evaluate efficacy according to Choi response6 monthsEfficacy measured through tumor response according to Choi criteria. The evaluation criteria will be based on the identification of target lesions in baseline and their follow-up until tumor progression.
Patients's quality of life (QoL)6 monthsQuality of life will be measured with European Organisation for Research and Treatment of Cancer - Quality of Life Questionnaire 30
Pharmacokinetic values in blood analysis6 monthsImpact of pharmacokinetics. interactions between selinexor in gemcitabine

Countries

Spain

Contacts

Primary ContactPatricio Ledesma
ensayos@sofpromed.com971 439 900
Backup ContactGabriel Joan Viver Llompart
gviver@sofpromed.com971 439 900

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026