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A Study of LSTA1 When Added to Standard of Care Versus Standard of Care Alone in Patients With Advanced Solid Tumors

A Phase 2a, Double-blind, Placebo-controlled, Multi-center, Randomized Study Evaluating LSTA1 When Added to Standard of Care (SoC) Versus Standard of Care Alone in Subjects With Advanced Solid Tumors (BOLSTER)

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05712356
Acronym
BOLSTER
Enrollment
66
Registered
2023-02-03
Start date
2023-05-13
Completion date
2026-04-05
Last updated
2026-05-26

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

Conditions

Bile Duct Cancer, Cholangiocarcinoma, Extrahepatic Cholangiocarcinoma, Gallbladder Cancer, Gall Bladder Cancer, Gallbladder Carcinoma, Gall Bladder Carcinoma, Intrahepatic Cholangiocarcinoma

Keywords

immunotherapy, chemo, chemotherapy, first line, second line, progression

Brief summary

The goal of this clinical trial is to test a new drug plus standard treatment compared with standard treatment alone in patients with previously untreated cholangiocarcinoma or those that have progressed after first-line treatment for cholangiocarcinoma. The main questions it aims to answer are: * is the new drug plus standard treatment safe and tolerable * is the new drug plus standard treatment more effective than standard treatment

Detailed description

This is a Phase 2a, double-blind, placebo-controlled, multi-center, randomized study of LSTA1 when added to standard of care (SoC) versus SoC alone in patients with advanced solid tumors. The study will include patients with previously untreated cholangiocarcinoma or those that have progressed after first-line treatment for cholangiocarcinoma. The study will consist of a screening period, a run-in period, a treatment period, an end-of-treatment follow-up visit, and a long-term follow up period. Participants who provide informed consent will be screened for eligibility within 28 days prior to beginning the study treatment run-in period. Once eligibility is confirmed, participants will be randomized to one of the two treatment groups (SoC + placebo vs. SoC + LSTA1). During the 3-day run-in period, participants will only receive the LSTA1 or placebo components of their randomized treatment regimen. After the 3-day run-in, Cycle 1 of treatment will commence. Tumor scans will be performed every 8 weeks (56 days ± 7 days) while on treatment.

Interventions

LSTA1 3.2 mg/kg given as a slow IV push over 1 minute when standard treatment(s) are given

DRUGDurvalumab

1500 mg of durvalumab IV administered over 1 hour every 21 days for 8 cycles then every 28 days for additional cycles

DRUGCisplatin

cisplatin 25 mg/m² IV administered over 30 minutes on day 1 and day 8 every 21 days for up to 8 cycles

DRUGGemcitabine

gemcitabine 1000 mg/m² IV administered over 30 minutes on day 1 and day 8 every 21 days for up to 8 cycles

DRUGFOLFOX regimen

The following will be given every 14 days: * oxaliplatin 85 mg/m² and l-folinic acid 200 mg/m² or d,l-folinic acid 400 mg/m² concurrently, as a 2-hour IV infusion * fluorouracil (5-FU) 400 mg/m² will be given as an IV bolus over 5 minutes * fluorouracil (5-FU) 2400 mg/m² will be administered over 46 hours (via home-infusion pump)

DRUGPlacebo

Placebo given as a slow IV push over 1 minute when standard treatment(s) are given

Sponsors

Lisata Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1 * Life expectancy ≥ 3 months * At least one measurable lesion as assessed by RECIST 1.1 * Adequate organ and marrow function * Adequate contraception * Patients with either of the following: * Pathologically confirmed metastatic or unresectable cholangiocarcinoma or gallbladder carcinoma (GBC), with no prior systemic chemotherapy or targeted therapy or loco-regional therapy (including but not limited to transarterial chemoembolization, transarterial embolization, transarterial chemotherapy or transarterial radioembolization). Patients with recurrent disease more than 6 months after completion of adjuvant chemotherapy following curative resection are eligible. * Pathologically confirmed metastatic or unresectable cholangiocarcinoma or GBC with progression of disease after first-line chemotherapy and immunotherapy.

Exclusion criteria

* Any condition or comorbidity that, in the opinion of the investigator, would interfere with evaluation of study treatment or interpretation of patient safety or study results, including but not limited to: * Any major surgery or irradiation less than 4 weeks prior to baseline disease assessment * Active infection (viral, fungal, or bacterial) requiring systemic therapy * Known active hepatitis B virus, hepatitis C virus, or HIV infection * Active tuberculosis as defined per local guidance * History of allogeneic tissue/solid organ transplant * Prior malignancy requiring active treatment within the previous 3 years except for locally curable cancers that have been apparently cured, such as basal or squamous cell skin cancer, superficial bladder cancer, or carcinoma in situ of the prostate, cervix, or breast * Pregnant or breastfeeding * Clinically significant or symptomatic cardiovascular/cerebrovascular disease (incl. myocardial infarction, unstable angina, symptomatic congestive heart failure, serious uncontrolled cardiac arrhythmia) within 6 months before randomization * History or clinical evidence of symptomatic central nervous system (CNS) metastases

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects Experiencing Any Adverse EventFrom time of consent until 30 days after treatment discontinuation, up to 18 monthsThe National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0 (NCI CTCAE) will be used to grade the intensity of adverse events throughout the study

Countries

United States

Contacts

STUDY_CHAIRKristen K Buck, MD

Lisata Therapeutics, Inc.

Participant flow

Recruitment details

Subjects were enrolled from May 2023 to February 2025. All enrolled subjects were from sites in the United States.

Pre-assignment details

Subjects were screened for eligibility within 28 days prior to beginning the study run-in period. Subjects were required to meet all inclusion criteria and none of the exclusion criteria to be eligible for this trial. Screening information, including clinical evaluation, laboratory assessments, tumor biomarkers, imaging, archival tumor tissue if available, and pregnancy test for potential subjects were recorded in the electronic Case Report Form (eCRF), including reasons for ineligibility.

Baseline characteristics

Characteristic
Age, Continuous62.6 years
STANDARD_DEVIATION 9.99
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
52 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
4 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
56 Participants
Region of Enrollment
United States
21 participants
Sex: Female, Male
Female
32 Participants
Sex: Female, Male
Male
13 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
12 / 234 / 1110 / 212 / 11
other
Total, other adverse events
23 / 2311 / 1120 / 2111 / 11
serious
Total, serious adverse events
10 / 233 / 1112 / 214 / 11

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 27, 2026