Skip to content

Immunostimulatory CpG SD-101 + RT in Recurrent/Progressive Lymphoma After Allogeneic Hematopoietic Cell Transplantation (HCT)

Intratumoral Injection of an Immunostimulatory CpG, SD-101, Combined With Local Radiation for the Treatment of Recurrent or Progressive Lymphoma After Allogeneic Hematopoietic Cell Transplantation

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01745354
Enrollment
6
Registered
2012-12-10
Start date
2012-08-31
Completion date
2014-11-30
Last updated
2016-11-18

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

Conditions

Lymphoma, Non-Hodgkin, Hodgkin Disease

Brief summary

For patients with lymphoma that recurs after chemotherapy, bone marrow transplantation using cells from a healthy donor represents potentially curative treatment. In these individuals, cure is possible because transplantation of healthy donor immune cells can fight the lymphoma in the patient. The goal of this work is to test a strategy that activates the healthy donor immune cells so that they more effectively fight lymphoma and can result in an increased cure rate for these patients. Our group has previously studied CpG, an immune activating medication, in patients with lymphoma and demonstrated modest anti-tumor responses. We now have a more potent form of CpG which we intend to test to see if it will better activate the donor immune cells and result in shrinkage of tumor throughout the entire body, not just at the injected site.

Detailed description

Patients will receive low dose radiation to all bulky or symptomatic lymph nodes on days -2 and -1. SD-101 will be administered intratumorally to the single largest palpable node within 24 hours after completion of radiation, on day 0. Two additional intratumoral SD-101 injections will be performed on days 7 (+/- 2 days) and 14 (+/- 2 days). This is a dose ranging study using a 3+3 design with a definition of maximum tolerated dose (MTD) which our group has found acceptable in the past. The first cohort of patients will receive a SD-101 dose of 0.3 mg per injection. The dose will be escalated to 1 mg and 3 mg based on dose limiting toxicity (DLT).

Interventions

DRUGSD-101

SD-101 will be administered after radiation to only the largest palpable lymph node as an intratumoral injection weekly for 3 weeks at three dosing cohorts: 0.3 mg, 1 mg, and 3 mg

Sponsors

Robert Lowsky
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Biopsy-confirmed relapsed, refractory, or progressive NHL or HL (Refer to Section 3.2.1 for excluded subtypes) * At least 3 sites of disease 1. One for diagnosis (lymph node or bone marrow biopsy) 2. One palpable for treatment 3. One measurable radiographically * \> 60 days after RIC allogeneic transplant for lymphoma * 18 years of age or older * Mixed (5-95%) or complete (\>95%) chimerism * Eastern Oncology Cooperative Group (ECOG) performance status ≤ 2 * ANC \>1000/mm3, platelets \>50,000/mm3 * Total bilirubin ≤ 2.5 mg/dL, AST and ALT \< 3 times upper limit of normal * Serum creatinine ≤ 3 mg/dL * No chemotherapy, RT, DLI or biologic therapy for lymphoma at least 4 weeks prior to scheduled treatment * Minimal immunosuppression (defined as monotherapy with ≤ 10 mg prednisone daily, ≤ 200 mg cyclosporine daily, or ≤ 2 mg tacrolimus daily) at least 2 weeks prior to scheduled treatment

Exclusion criteria

* HIV associated lymphoma * Acute GVHD at time of enrollment (history of treated and resolved GVHD is permitted) * Active infection within 14 days prior to scheduled treatment * Active Cytomegalovirus (CMV) disease at the time of enrollment * Pre-existing autoimmune or antibody mediated disease (including systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, Sjogren's syndrome, and autoimmune thrombocytopenia) * Pregnant

Design outcomes

Primary

MeasureTime frame
Determination of the maximum tolerated dose based on dose limiting toxicity defined as any new grade 3-4 toxicity after the first SD-101 administration60 Days

Secondary

MeasureTime frameDescription
Measure cytotoxic T-cell activity changes pre- and post-treatment of tumor infiltrating lymphocytes and peripheral blood lymphocytes using ELISA and Immunohistochemistry.2, 3, 8 weeks after treatment
Measure tumor response by PET-CT scan imaging8 weeks after treatment
Measure level of donor specific tumor infiltrating lymphocytes by flow cytometry and Immunofluorescence2, 3, 8 weeks after treatmentCollect PBMCs

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 6, 2026