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Ph2, Study to Assess the Safety and Efficacy of GPC 100 and Propranolol With and Without G-CSF for the Mobilization of Stem Cells in Patients With Multiple Myeloma Undergoing Autologous Stem Cell Transplant

NCT05561751 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2026-02-12

No results posted yet for this study

Summary

This is a randomized, open-label study. Patients will be screened within 28 days prior to the study drug administration. Patients will be randomly assigned to 1 of 2 treatment arms prior to study drug administration.

Approximately 40 patients will be randomized in a 1:1 ratio to the following treatment arms:

* GPC-100 in combination with propranolol; or
* GPC-100 in combination with propranolol and G-CSF. To characterize the safety and clinical activity of GPC-100, the study will employ a Bayesian Optimal Phase II (BOP2) design to enroll patients for each arm.

All patients will receive via IV 3.14 mg/kg GPC-100 (Burixafor) at least 2 hours prior to leukapheresis sessions from Days 7-8 (Days 9-11 optional) and 30 mg propranolol (3 x 10 mg tablets) twice daily at 8:30 AM (+/- 1 hr) and 4:00 PM (+/- 1 hr) local time from Days 1 to 8 (and on Days 9-11, if applicable). Patients will administer the first dose of propranolol onsite on Day 1. Patients will be provided with doses of propranolol for self-administration at time points when they are not otherwise required to be onsite. Sites should contact patients via telephone to confirm propranolol administration for doses administered outside of clinic.

Conditions

Interventions

DRUG

GPC-100

GPC-100 is to be administered at a dose of 3.14 mg/kg GPC-100 free base via IV infusion. The corresponding volume of the reconstituted GPC-100 solution calculated based on the patient weight will be administered via IV infusion over 15 min

DRUG

Propranolol

propranolol

DRUG

G-CSF

G-CSF

Sponsors & Collaborators

  • GPCR Therapeutics, Inc.

    lead INDUSTRY

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-02-13
Primary Completion
2025-09-30
Completion
2025-10-31
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05561751 on ClinicalTrials.gov