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Spots Global Cancer Trial Database for Neoadjuvant INBRX-106 (Hexavalent OX40 Agonist) in Combination With Pembrolizumab as a Chemotherapy-sparing Regimen for Stage II TNBC (Triple Negative Breast Cancer) Patients

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Trial Identification

Brief Title: Neoadjuvant INBRX-106 (Hexavalent OX40 Agonist) in Combination With Pembrolizumab as a Chemotherapy-sparing Regimen for Stage II TNBC (Triple Negative Breast Cancer) Patients

Official Title: A Phase 2a, Single-arm, Multi-center, Open-label Study of Neoadjuvant INBRX-106 (Hexavalent OX40 Agonist) in Combination With Pembrolizumab as a Chemotherapy-sparing Regimen for Stage II TNBC Patients

Study ID: NCT06353997

Study Description

Brief Summary: This is a Phase II trial to assess feasibility of pembrolizumab + INBRX-106 as a chemotherapy-sparing neoadjuvant therapy. One therapeutic arm is being evaluated to provide an informal comparison of pharmacodynamic and clinical effects of concurrent dosing schedule.

Detailed Description: A Simon 2-stage design is implemented to minimize exposure if the treatment regimen is futile. If feasibility is established with responses exceeding futility parameters, study will expand to stage 2. Additional arms may be introduced in a protocol amendment. Below shows the sample size required using Simon's 2-stage design, 80% power and 5% one-sided significance level: * Null hypothesis: \<5% pCR * Alternative hypothesis: \>35% pCR * Stage I n (r\*): 6 (0) * Stage I + II total n (r): 12 (2) * Criteria: Minimax * Minimum responses to proceed to stage II: 1 Note: r\* and r represents the threshold for declaring futility, i.e. greater than r\* or r responses would be required to consider ongoing investigation. The null hypothesis of 5% is based upon the assumption that virtually no subjects would experience pCR if the therapy was not effective. The alternative hypothesis of 35% is based upon the assumption that complete responses in the absence of chemotherapy in approximately one-third of subjects would be clinically meaningful, encouraging further development of the treatment paradigm. If no responses are observed, a second feasibility run-in may be considered using a biomarker enrichment strategy (such as with the 27-gene IO score). The arm will be terminated from further development if an unacceptable proportion of patients experience rapid clinical/radiographic progression (defined as progression of disease, or clinical evidence of progression), or other toxicities that interfere with curative-intent therapy, defined as \>1/6 evaluable subjects in stage I or \>2/12 in stage II, evaluated for each arm. This is a Pocock-type stopping boundary that yields the probability of cross the boundary at most 23% when the rate of dose-limiting toxicity is equal to 10%.

Keywords

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Ellison Institute of Technology (EITM), Los Angeles, California, United States

Providence Portland Cancer Institute - Franz Clinic, Portland, Oregon, United States

Providence St. Vincent Medical Center, Portland, Oregon, United States

Swedish Cancer Institute, Seattle, Washington, United States

Contact Details

Name: David Page, MD

Affiliation: Providence Health & Services

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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