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Enhancing Anti--Tetanus Vaccine Response After Autologous Stem Cell Transplantation

A Phase II Study of Enhancing Anti-Tetanus Vaccine Response After Autologous Stem Cell Transplantation

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02700841
Enrollment
8
Registered
2016-03-07
Start date
2020-01-09
Completion date
2022-12-21
Last updated
2024-03-12

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

Conditions

Plasma Cell Myeloma

Brief summary

This pilot randomized Phase II trial (10 subjects per arm) will compare immune reconstitution following transplantation of an autologous mobilized graft product to reconstitution following transplantation of a mobilized graft product followed by an autologous lymphocyte infusion collected prior to G-CSF mobilization. All subjects will receive tetanus vaccines pre and post-transplant. The primary end point will be tetanus vaccine immune responses post-transplant.

Detailed description

PRIMARY OBJECTIVES: 1. To compare the cellular and humoral vaccine response post-transplant between the two arms by performing Elisa, and T-cell enzyme-linked immunospot (ELISPOT) assays 2. To determine the feasibility and safety of this approach SECONDARY OBJECTIVES: 1. To compare post-transplant recovery of innate and adaptive immune cells (CD8, CD4, CD19, NK, γδ T-cells), in addition to T-cell phenotype markers between the two arms. 2. To compare post-transplant recovery of T-regs and MDSCs between the two arms. 3. To compare progression free survival (PFS) at 2 years post-transplant

Interventions

DRUGMelphalan

Given IV

PROCEDUREPeripheral Blood Stem Cell Transplantation--CD34 HSCT

Undergo autologous CD34 HSCT

PROCEDUREPeripheral Blood Stem Cell Transplantation--AHSCT

Undergo AHSCT

Undergo autologous CD34 HSCT

Given IM

Sponsors

University of Nebraska
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

1. Age ≥ 19 years to 70 years old at time of study entry (consent) 2. Diagnosis of Multiple Myeloma as per updated International Myeloma Working Group (IMWG) criteria . 3. Must have measurable disease defined as: for secretory MM, serum monoclonal protein ≥1.0 g/dL, urine monoclonal protein ≥200 mg/24 hrs, and involved free light chain ≥ 10 mg/dL; or in case of non-secretory MM, bone marrow plasma cell percentage ≥30%. 4. Must have standard risk myeloma (see exclusion criterion 4). 5. Must have received bortezomib, lenalidomide and dexamethasone (VRd) as a form of induction therapy pre-AHSCT (use of cyclophosphamide, bortezomib and dexamethasone may be allowed for up to 2 weekly doses before initiation of VRd induction, if necessary clinically for cytoreduction) 6. Able to understand and sign a consent form. 7. Creatinine clearance equal or \> 60 ml/min (calculated) 8. Ejection fraction equal or \> 50% before admission for transplant as per institutional standards. Patients with coronary heart disease (recent myocardial infarctions, angina, cardiac stent, or bypass surgery in the last 6 months or arrhythmia) need to be cleared by cardiology as per institutional BMT standards. 9. Serum bilirubin, ALT, AST less than 3 X upper limit of normal 10. FVC, FEV1 or DLCO \>50% predicted before admission for transplant as per institutional standards. Patients on home oxygen are not allowed on the protocol. 11. No more than 6 months of pre-transplant MM chemotherapy is allowed (from the date of the start of the induction therapy). 12. KPS ≥ 70%or ECOG 0-2. 13. Must be eligible to receive Melphalan dose of 200mg/m2 14. A female of child-bearing potential, must have two negative urine pregnancy test results within 10 to 14 days prior to starting the first dose of vaccine pre-transplant as a way of ensuring safe transplant planning.

Exclusion criteria

1. Participation in another clinical study with an investigational product during the last 28 days. 2. Prior stem cell transplant (either autologous or allogeneic) 3. Creatinine clearance \< 60 ml/min (calculated) 4. High risk MM defined as those with the following disease, fluorescence in situ hybridization and/or cytogenetic features: del17p, del1p with 1q gain, t(4;14), t(14;16), t(14;20), \>1 cytogenetic abnormality on karyotype, hypodiploid, plasma cell leukemia (primary or secondary), or subjects who failed to achieve ≥PR to induction therapy (i.e. VRd) and required salvage induction prior to AHSCT. 5. Documented central nervous system or extramedullary disease. 6. Significant organ dysfunction deemed to carry inappropriate risk for AHSCT. 7. Intention or plans for cyclophosphamide mobilization. 8. Known allergic reactions after previous tetanus diphtheria vaccination or had a condition of Guillain Barre Syndrome (GBS) 9. Known active hepatitis B, C or HIV infections on initial assessment. 10. Enrollment on any other transplant related protocols.

Design outcomes

Primary

MeasureTime frameDescription
Number of Safely Treated Participants (Feasibility and Safety)Through 180 days post-transplantDetermine safety of outcomes based on the number of safely treated participants by CTCAE version 5.0 tool

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm I (Vaccine, CD34 Transplant, DLI)
ARM I: Patients receive 3 doses of tetanus before transplant and on days 15, and 60 post transplant. Melphalan: Given IV Peripheral Blood Stem Cell Transplantation--CD34 HSCT: Undergo autologous CD34 HSCT Peripheral Blood Stem Cell Transplantation--AHSCT: Undergo AHSCT T Cell-Depleted Hematopoietic Stem Cell Transplantation: Undergo autologous CD34 HSCT Tetanus Toxoid Vaccine: Given IM
4
Arm II (Vaccine, Stem Cell Transplant)
Patients receive 3 doses of tetanus as in Arm I. Patients receive high-dose melphalan IV on day -2 and undergo AHSCT on day 0. Melphalan: Given IV Peripheral Blood Stem Cell Transplantation--AHSCT: Undergo AHSCT Tetanus Toxoid Vaccine: Given IM
4
Total8

Baseline characteristics

CharacteristicArm I (Vaccine, CD34 Transplant, DLI)Arm II (Vaccine, Stem Cell Transplant)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
2 Participants4 Participants6 Participants
Age, Categorical
Between 18 and 65 years
2 Participants0 Participants2 Participants
Age, Continuous61.5 years
STANDARD_DEVIATION 4.8
66.8 years
STANDARD_DEVIATION 1.7
64.1 years
STANDARD_DEVIATION 4.4
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants4 Participants8 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
4 Participants3 Participants7 Participants
Region of Enrollment
United States
4 participants4 participants8 participants
Sex: Female, Male
Female
0 Participants1 Participants1 Participants
Sex: Female, Male
Male
4 Participants3 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 40 / 4
other
Total, other adverse events
4 / 44 / 4
serious
Total, serious adverse events
0 / 40 / 4

Outcome results

Primary

Number of Safely Treated Participants (Feasibility and Safety)

Determine safety of outcomes based on the number of safely treated participants by CTCAE version 5.0 tool

Time frame: Through 180 days post-transplant

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm I (Vaccine, CD34 Transplant, DLI)Number of Safely Treated Participants (Feasibility and Safety)4 Participants
Arm II (Vaccine, Stem Cell Transplant)Number of Safely Treated Participants (Feasibility and Safety)4 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026