SHARON: A Clinical Trial for Metastatic Cancer With a BRCA or PALB2 Mutation Using Chemotherapy and Patients' Own Stem Cells

Registration Number
NCT04150042
Lead Sponsor
General Oncology, Inc.
Brief Summary

The clinical trial is a phase 1, single-arm trial that will evaluate the safety of the investigational treatment on metastatic cancer in patients who have a deleterious or suspected deleterious BRCA1, BRCA2, or PALB2 genetic alteration. The investigational treatment will involve 2 cycles of a combination of intravenous melphalan, BCNU, low-dose I.V. ethanol,...

Detailed Description

In the current clinical trial, subjects with BRCA-related or PALB2-related metastatic pancreatic or breast cancer will receive a combination of melphalan, BCNU, low-dose ethanol, vitamin B12b, and vitamin C in conjunction with autologous stem cell infusion. The drug combination is designed to address multiple mechanisms of melphalan resistance. The purpose o...

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
10
Inclusion Criteria

Not provided

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Exclusion Criteria

Not provided

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Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Chemotherapy/stem cell treatmentVitamin B12B-
Chemotherapy/stem cell treatmentEthanol-
Chemotherapy/stem cell treatmentMelphalan-
Chemotherapy/stem cell treatmentBCNU-
Chemotherapy/stem cell treatmentVitamin C-
Chemotherapy/stem cell treatmentAutologous Hematopoietic Stem Cells-
Primary Outcome Measures
NameTimeMethod
Overall incidence rate of adverse eventsUntil 12 months after the second stem cell treatment

Adverse event is defined any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug-related.

Overall incidence rate of serious adverse eventsUntil 12 months after the second stem cell treatment

An adverse event is considered serious if, in the view of either the investigator or Sponsor, it results in any of the following outcomes:

* Death.

* A life-threatening adverse event.

* Inpatient hospitalization or prolongation of existing hospitalization.
...

Rate of Sinusoidal obstruction syndrome30 days after treatment

Sinusoidal obstruction syndrome diagnosis and grading will use the European Society for Blood and Marrow Transplantation's Revised Diagnosis and Severity Criteria for Sinusoidal Obstruction Syndrome/Veno-Occlusive Disease in Adult Patients as published in 2016. Gradings are from mild to very severe (multi-organ dysfunction/multi-organ failure).

Overall incidence rate of Grade 3-5 adverse eventsUntil 12 months after the second stem cell treatment

Grading will be measured using Common Terminology Criteria for Adverse Events version 5.0

Rate of Presumptive Oxalate NephropathyWithin 48 hours of vitamin C treatment

Oxalate nephropathy will be presumed if there is acute kidney injury or increased creatinine, grade 3 or higher by the criteria of CTCAE Version 5.0 within 48 h of the administration of vitamin C, in the absence of a clear alternative explanation (an example of an alternative explanation is tumor lysis syndrome).

Rate of Delayed Engraftment of NeutrophilsDay 21 after each treatment

Neutrophil engraftment is defined as an absolute neutrophil count ≥ 500/microliter for 3 days, with the date of engraftment being the first of those 3 days. Delayed engraftment is engraftment that occurs after 21 days but within 30 days.

Rate of Idiopathic or Non-Infective Pulmonary Toxicity6 months after the last treatment

The American Thoracic Society Committee on Idiopathic Pneumonia Syndrome definition will be employed.

Rate of Mucositis ≥ Grade 3Day 21 after each treatment

Mucositis will be assessed using the WHO Mucositis Scale. Grading is from 0 (no symptoms) to 4 (no possible alimentation).

Rate of Failed Engraftment of NeutrophilsDay 30 after each treatment

Neutrophil engraftment is defined as an absolute neutrophil count ≥ 500/microliter for 3 days, with the date of engraftment being the first of those 3 days. Failure to engraft within 30 days will be considered an engraftment failure.

Rate of Delayed Engraftment of PlateletsDay 30 after each treatment

Platelet engraftment is defined as a platelet count ≥ 20,000/microliter for 3 days, with the date of engraftment being the first of those 3 days. Delayed engraftment is engraftment that occurs after 30 days.

Secondary Outcome Measures
NameTimeMethod
Overall SurvivalUntil 12 months after the second stem cell treatment

Overall survival will be measured from the time of enrollment until death from any cause and will be measured in the intent-to-treat population. Subjects without a known date of death will be censored on the date the subject was last known to be alive.

Progression-Free SurvivalUntil 12 months after the second stem cell treatment

Progression-free survival will be measured as time-to-progression with the starting time being the time of enrollment.

A subject is also considered to have progressed if one of the following occurs:

* Progression as determined by a RECIST evaluation.

* Unequivocal evidence of clinical progression.
...

Objective response according to RECIST version 1.112 months after the second stem cell treatment

Objective response will be evaluated according to RECIST version 1.1 as assessed by the independent core imaging facility. This endpoint will be evaluated with CT scans with contrast of the abdomen, pelvis, and chest and other sites as clinically indicated at each time point.

Objective response rate in metastatic lesions12 months after the second stem cell treatment

Objective response of metastatic lesions will be evaluated according to RECIST version 1.1 as assessed by the independent core imaging facility, but excluding the primary tumor from the analysis. This endpoint will be evaluated with CT scans with contrast of the abdomen, pelvis, and chest and other sites as clinically indicated at each time point.

Trial Locations

Locations (2)

Massachusetts General Hospital

🇺🇸

Boston, Massachusetts, United States

Memorial Sloan Kettering Cancer Center

🇺🇸

New York, New York, United States

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