Dr. Gregory E. Halligan

About Gregory E. Halligan

Education:

• Earned an MD from Jefferson Medical College, Philadelphia, PA, in 1987.

Experience:

• Completed Pediatric Residency at St. Christopher's Hospital for Children, Philadelphia, PA (1987-1990).
• Undertook a Fellowship in Pediatric Hematology/Oncology at St. Jude Children's Research Hospital, Memphis, TN (1990-1993).
• Has been serving as an Attending Physician in Pediatric Hematology/Oncology at St. Christopher's Hospital for Children since 1993.

Area of expertise

Affiliated Hospitals

Saint Christopher's Hospital For Children

Drexel University School Of Medicine

Clinical Trials Gregory E. Halligan is currently running

Inotuzumab Ozogamicin

for Acute Lymphoblastic Leukemia

This phase III trial studies whether inotuzumab ozogamicin added to post-induction chemotherapy for patients with High-Risk B-cell Acute Lymphoblastic Leukemia (B-ALL) improves outcomes. This trial also studies the outcomes of patients with mixed phenotype acute leukemia (MPAL), and B-lymphoblastic lymphoma (B-LLy) when treated with ALL therapy without inotuzumab ozogamicin. Inotuzumab ozogamicin is a monoclonal antibody, called inotuzumab, linked to a type of chemotherapy called calicheamicin. Inotuzumab attaches to cancer cells in a targeted way and delivers calicheamicin to kill them. Other drugs used in the chemotherapy regimen, such as cyclophosphamide, cytarabine, dexamethasone, doxorubicin, daunorubicin, methotrexate, leucovorin, mercaptopurine, prednisone, thioguanine, vincristine, and pegaspargase or calaspargase pegol work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. This trial will also study the outcomes of patients with mixed phenotype acute leukemia (MPAL) and disseminated B lymphoblastic lymphoma (B-LLy) when treated with high-risk ALL chemotherapy. The overall goal of this study is to understand if adding inotuzumab ozogamicin to standard of care chemotherapy maintains or improves outcomes in High Risk B-cell Acute Lymphoblastic Leukemia (HR B-ALL). The first part of the study includes the first two phases of therapy: Induction and Consolidation. This part will collect information on the leukemia, as well as the effects of the initial treatment, to classify patients into post-consolidation treatment groups. On the second part of this study, patients with HR B-ALL will receive the remainder of the chemotherapy cycles (interim maintenance I, delayed intensification, interim maintenance II, maintenance), with some patients randomized to receive inotuzumab. The patients that receive inotuzumab will not receive part of delayed intensification. Other aims of this study include investigating whether treating both males and females with the same duration of chemotherapy maintains outcomes for males who have previously been treated for an additional year compared to girls, as well as to evaluate the best ways to help patients adhere to oral chemotherapy regimens. Finally, this study will be the first to track the outcomes of subjects with disseminated B-cell Lymphoblastic Leukemia (B-LLy) or Mixed Phenotype Acute Leukemia (MPAL) when treated with B-ALL chemotherapy.

Recruiting2 awards Phase 3

Selinexor + Radiation

for Brain Cancer

This trial tests the safety and effectiveness of combining selinexor with radiation therapy in children and young adults with aggressive brain tumors. Selinexor is a drug that blocks a protein to stop cancer cells from growing. The study aims to find the best dose and see if this combination can shrink tumors.

Recruiting1 award Phase 1 & 21 criteria

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