Phase I Study of Dual Immune Checkpoint Blockade (Anti-PD-L1 (Durvalumab) (MEDI4736) and Anti-CTLA4 (Tremelimumab) Plus Yttrium-90 (Y-90) Radioembolization & Stereotactic Body Radiation Therapy (SBRT) in Refractory Metastatic MSS (Microsatellite Stable) Colorectal Cancer With Liver Metastases
Overview
- Phase
- Phase 1
- Intervention
- Durvalumab
- Conditions
- Colorectal Cancer
- Sponsor
- University of Colorado, Denver
- Primary Endpoint
- Incidence of Treatment Related Adverse Events
- Status
- Withdrawn
- Last Updated
- last year
Overview
Brief Summary
This study is evaluating the combination of Y-90 radioembolization followed by SBRT with the immunotherapy drugs, durvalumab and tremelimumab, to improve disease control of liver metastases for patients with microsatellite stable colorectal cancer.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Histologic or cytologic confirmation of metastatic microsatellite stable colorectal cancer
- •Liver metastases not amenable to resection for which palliative Y-90 and SBRT is considered appropriate standard therapy
- •Patients should have received at least one prior standard therapy for metastatic disease. Prior therapies should include regimens containing oxaliplatin and irinotecan in combination with a fluoropyrimidine if appropriate (e.g., FOLFOX and FOLFIRI or their variants) unless contraindicated, not tolerated, or declined.
- •Male or female, age 18 or older
- •ECOG performance status of 0 or 1
- •Body weight \>30 kg
- •Life expectancy of greater than 6 months
- •Evidence of post-menopausal status or negative urinary or serum pregnancy test for female pre-menopausal patients. Women will be considered post-menopausal if they have been amenorrheic for 12 months without an alternative medical cause. The following age-specific requirements apply:
- •Women \<50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of exogenous hormonal treatments and if they have luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution or underwent surgical sterilization (bilateral oophorectomy or hysterectomy).
- •Women ≥50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of all exogenous hormonal treatments, had radiation-induced menopause with last menses \>1 year ago, had chemotherapy-induced menopause with last menses \>1 year ago, or underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy or hysterectomy).
Exclusion Criteria
- •Participation in another clinical study with an investigational drug during the last 4 weeks.
- •Concurrent enrollment in another clinical study, unless it is an observational (non-interventional) clinical study or during the follow-up period of an interventional study
- •Any unresolved toxicity NCI CTCAE Grade ≥2 from previous anticancer therapy with the exception of alopecia, vitiligo, and the laboratory values defined in the inclusion criteria
- •Patients with Grade \>2 neuropathy will be evaluated on a case-by-case basis after consultation with the Study Physician.
- •Patients with irreversible toxicity not reasonably expected to be exacerbated by treatment with durvalumab or tremelimumab may be included only after consultation with the Study Physician.
- •Any concurrent chemotherapy, IP, biologic, or hormonal therapy for cancer treatment. Concurrent use of hormonal therapy for non-cancer-related conditions (e.g., hormone replacement therapy) is acceptable.
- •Major surgical procedure (as defined by the Investigator) within 28 days prior to the first dose of IP. Note: Local surgery of isolated lesions for palliative intent is acceptable.
- •History of allogenic organ transplantation.
- •Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease \[e.g., colitis or Crohn's disease\], diverticulitis \[with the exception of diverticulosis\], systemic lupus erythematosus, Sarcoidosis syndrome, or Wegener syndrome \[granulomatosis with polyangiitis, Graves' disease, rheumatoid arthritis, hypophysitis, uveitis, etc\]). The following are exceptions to this criterion:
- •Patients with vitiligo or alopecia
Arms & Interventions
Y-90, SBRT, and Durvalumab Alone
Six patients will be enrolled in cohorts of three to be administered Y-90, SBRT, and Druvalumab.
Intervention: Durvalumab
Y-90, SBRT, and Durvalumab Alone
Six patients will be enrolled in cohorts of three to be administered Y-90, SBRT, and Druvalumab.
Intervention: Y-90 Selective Internal Radiation Therapy (SIRT)
Y-90, SBRT, and Durvalumab Alone
Six patients will be enrolled in cohorts of three to be administered Y-90, SBRT, and Druvalumab.
Intervention: Stereotactic Body Radiation Therapy (SBRT)
Y-90, SBRT, and Durvalumab + Tremelimumab
Six patients will be enrolled in cohorts of three to be administered Y-90, SBRT, and Druvalumab + Tremelimumab.
Intervention: Durvalumab and Tremelimumab
Y-90, SBRT, and Durvalumab + Tremelimumab
Six patients will be enrolled in cohorts of three to be administered Y-90, SBRT, and Druvalumab + Tremelimumab.
Intervention: Y-90 Selective Internal Radiation Therapy (SIRT)
Y-90, SBRT, and Durvalumab + Tremelimumab
Six patients will be enrolled in cohorts of three to be administered Y-90, SBRT, and Druvalumab + Tremelimumab.
Intervention: Stereotactic Body Radiation Therapy (SBRT)
Outcomes
Primary Outcomes
Incidence of Treatment Related Adverse Events
Time Frame: Start of study to 3 months post treatment completion, up to 5 years
Adverse events related to Y-90, SBRT, and durvalumab plus tremelimumab will be summarized by dose and severity as assessed by the Common Toxicity Criteria for Adverse Events (CTCAE) version 5.0.
Dose-Limiting Toxicity of Y-90+SBRT in Combination with Dual Immune Checkpoint Blockade
Time Frame: Start of study to 3 months post treatment completion, up to 5 years
Defined as the rate of \>Grade 3 treatment-related adverse events during treatment or within 3 months of treatment completion.
Secondary Outcomes
- Duration of Response (DoR)(Landmark time of initiation of tremelimumab, about 18 weeks after the start of treatment, to end of follow up, up to 2 years)
- Progression Free Survival for Three Months (PFS)(Landmark time of initiation of tremelimumab, about 18 weeks after the start of treatment, to end of follow up, up to 2 years)
- Overall Response Rate (ORR)(Landmark time of initiation of tremelimumab, about 18 weeks after the start of treatment, to end of follow up, up to 2 years)
- Overall Survival for Two Years (OS)(Landmark time of initiation of tremelimumab, about 18 weeks after the start of treatment, to end of follow up, up to 2 years)
- Liver Progression Free Survival for One Year (L-PFS)(Landmark time of initiation of tremelimumab, about 18 weeks after the start of treatment, to end of follow up, up to 2 years)
- Pathological Response Rates (PRR)(Landmark time of initiation of tremelimumab, about 18 weeks after the start of treatment, to end of follow up, up to 2 years)
- Time to Tumor Progression (TTP)(Landmark time of initiation of tremelimumab, about 18 weeks after the start of treatment, to end of follow up, up to 2 years)