PR104 in Treating Patients With Refractory/Relapsed Acute Leukemia
Public ClinicalTrials.gov record NCT01037556. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Phase I/II Study of PR104 in Subjects With Refractory/Relapsed Acute Leukemia Using Adaptive Dose Selection
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The current understanding of PR104 justifies the evaluation of PR104 in subjects with relapsed/refractory AML and ALL. These include: * Hypoxia. Leukemic bone marrow is likely to demonstrate a level of hypoxia sufficient to activate PR104 to its active metabolites PR104H and PR104M. * Myelotoxicity as the primary toxicity at MTD. In prior clinical studies in subjects with solid tumors PR104 has demonstrated myelotoxicity as the primary toxicity. This observation suggests that PR104 will exert a similar effect on leukemic cells. * AKR1C3. AML has been reported to exhibit high levels of AKR1C3 which should lead to selective activation of PR104 within both hypoxic and oxic leukemic cells. * Preclinical data. PR104 has demonstrated impressive activity in an initial study using primary human ALL in a mouse model. The initial dose finding phase of the study will provide estimates of the activity and toxicity of PR104 in subjects with refractory/relapsed AML, and determine the optimal individualized dose to give each subject based on his/her covariates (prior CR duration, prior number of salvage therapies, age). Once a potentially beneficial dose has been determined, an expanded cohort of subjects with AML or ALL will receive PR104 at a uniform dose. This information will prove valuable in defining the future clinical development of PR104, and in determining if PR104 has sufficient activity and acceptable safety in AML to warrant future phase II or phase III studies in this indication. Primary objectives * Determine the toxicities and recommended dose of PR104 when administered IV to subjects with relapsed/refractory AML and ALL. Secondary objectives * Evaluate the pharmacokinetics (PK) of PR104 and a series of PR104 metabolites * Evaluate any anti-tumor effects of PR104 * Evaluate the expression of AKR1C3 in bone marrow and leukemic cells * Evaluate potential biomarkers of hypoxia
Study identification
- NCT ID
- NCT01037556
- Recruitment status
- Not listed
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Enrollment
- 50 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Dec 31, 2009
- Primary completion
- Nov 30, 2012
- Completion
- Nov 30, 2012
- Last update posted
- Aug 30, 2012
2010 – 2012
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| MD Anderson Cancer Center | Houston | Texas | 77030 | — |
| Seattle Cancer Care Alliance | Seattle | Washington | 98109 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01037556, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Aug 30, 2012 · Synced Sep 3, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01037556 live on ClinicalTrials.gov.