PF-04449913 For Patients With Acute Myeloid Leukemia at High Risk of Relapse After Donor Stem Cell Transplant
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|ClinicalTrials.gov Identifier: NCT01841333|
Recruitment Status : Completed
First Posted : April 26, 2013
Last Update Posted : August 28, 2020
|Condition or disease||Intervention/treatment||Phase|
|Adult Acute Myeloid Leukemia in Remission Recurrent Adult Acute Myeloid Leukemia||Drug: PF-04449913||Phase 2|
Disease relapse is the most common cause of death after allogeneic stem cell transplantation for acute myeloid leukemia. Patients at high risk for relapse may benefit from a novel, biologically rational therapeutic intervention to prevent this outcome. PF-04449913 is a small molecule inhibitor of the hedgehog (Hh) pathway that inhibits the protein Smoothened (SMO). Aberrant Hh signaling may contribute to the survival and expansion of the leukemia stem cell, and inhibiting the Hh pathway can eliminate these cells. Therefore, targeting Hh may be a logical intervention in the post-transplantation setting for those with high risk of relapse. The investigators propose a phase 2 study of PF-04449913 in patients with acute myeloid leukemia who have received an allogeneic stem cell transplantation and are at high risk of relapse.
This is an open label, phase 2 study employing PF-04449913 in acute myeloid leukemia patients who received an allogeneic stem cell transplantation and are at high risk of relapse. Patients will receive consecutive 28-day cycles of PF-04449913 at 100 mg/day, beginning on post-transplantation day 80 +/- 10 days, after their routine post-transplant bone marrow biopsy. Treatment will continue for up to one year or until they experience toxicity or disease relapse. 50 patients will be required for a 90% power to detect a 20% difference in one-year relapse-free survival.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||35 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||A Phase 2 Study of PF-04449913 for the Treatment of Acute Myeloid Leukemia Patients With High Risk of Post-Allogeneic Stem Cell Transplantation Relapse|
|Actual Study Start Date :||April 29, 2013|
|Actual Primary Completion Date :||May 8, 2019|
|Actual Study Completion Date :||February 4, 2020|
Beginning 80 days after allogeneic stem cell transplant, patients receive PF-04449913 (100mg) orally once daily on days 1-28. Treatment repeats every 28 days for up to 1 year in the absence of disease progression or unacceptable toxicity.
100mg given orally
Other Name: Hedgehog inhibitor
- Relapse-free survival [ Time Frame: 1 year ]Kaplan-Meier estimates will be used to measure relapse-free survival
- Remission duration [ Time Frame: Up to 5 years ]
- Number of patients with adverse events (AE) [ Time Frame: 30 days ]Subjects will be evaluated for AEs at each visit with the NCI-CTCAE version 4.03 used as a guide for the grading of severity.
- Overall survival of all patients [ Time Frame: 1 year ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01841333
|United States, Colorado|
|University of Colorado Cancer Center|
|Aurora, Colorado, United States, 80045|
|United States, Ohio|
|Ohio State University|
|Columbus, Ohio, United States, 43210|
|Principal Investigator:||Daniel A Pollyea, MD, MS||University of Colorado, Denver|