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Pilot Study Using Propranolol To Promote Prenylation Of Gtpase Rap1b In Hematopoietic Stem Cell Transplant Recipients

Pilot Study Using Propranolol To Promote Prenylation Of The Gtpase Rap1b In Hematopoietic Stem Cell Transplant Recipients

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02535182
Enrollment
25
Registered
2015-08-28
Start date
2015-08-31
Completion date
2020-02-29
Last updated
2020-02-26

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

Conditions

Hematopoietic Stem Cell Transplantation

Brief summary

This is a an ancillary study designed to explore whether an additional cell signaling pathway (prenylation of Rap1) that was recently identified as being under beta-adrenergic control may be affected by beta-blocker use.

Detailed description

This is a proof of concept randomized controlled pilot study assessing whether prenylation and membrane localization of Rap1 in PBMCs can be altered in individuals undergoing autologous Hematopoietic Cell Transplant (HCT) for Multiple Myeloma by administering a daily beta-blocker (propranolol) to 20 participants. Outcomes of patients on this clinical trial will be compared to 20 participants in a control arm.

Interventions

OTHERBlood Draw

Lab will draw one tube of blood to be stored in 8 mL Becton Dickinson (BD) Vacutainer Cell Preparation Tube (CPT) tubes at three study time points as described in Table 4.7b. These time points include baseline, Day -2 (immediately prior to transplant, central line placement, or administration of any conditioning regimen), and Day +28. Peripheral blood mononuclear cells (PBMCs) will be isolated from the whole blood samples collected from patients at the three designated time points (Baseline, Day -2, and Day +28). The lab will conduct western blotting on the cytosolic and membrane fractions of isolated PBMCs to determine the distribution of Rap1 in the different fractions, and the status of Rap1 prenylation in the cells.

Sponsors

Medical College of Wisconsin
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

Patients with multiple myeloma receiving an autologous HCT are eligible when the following criteria are met: 1. 18-75 years of age 2. ≤ 1 year since initiation of systemic anti-myeloma therapy 3. Patient is scheduled for autologous hematopoietic stem cell transplant as the upfront therapy for their multiple myeloma 4. Karnofsky Performance Status of ≥90 %; patients eligible for HCT are eligible for the study 5. All men and women must agree to practice effective contraception during the study period if not otherwise documented to be infertile.

Exclusion criteria

1. Prior autologous HCT 2. Non secretory multiple myeloma 3. Concurrent beta-blocker therapy at or within 3 weeks of study entry. 4. Previous intolerance to beta-blocker therapy 5. Any medical contraindications to beta-blocker therapy including, but not limited to, symptomatic hypotension; drug hypersensitivity; sinus bradycardia, sick sinus syndrome, or 2nd or 3rd degree atrioventricular block without a pacemaker; uncompensated heart failure; or uncontrolled asthma 6. Active, untreated depression screened for by the HCT physician (Patients who screen positive will be offered a referral to the MCW Psycho-Oncology program for further evaluation and treatment) 7. Concurrent use of medications as specified in the protocol throughout the study or within one week of study entry. 8. Pregnant or lactating women

Design outcomes

Primary

MeasureTime frameDescription
Prenylation levels in response to propranolol in a population of patients undergoing autologous hematopoietic stem cell transplantation1 yearLevel of prenylation will be compared between patients exposed vs. not exposed to propranolol from 1-3 weeks before to 4 weeks following transplantation.

Countries

United States

Outcome results

None listed

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