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A Phase 1 Study of XL019 in Adults With Polycythemia Vera

A Phase 1 Dose-Escalation Study of the Safety, Pharmacokinetics, and Pharmacodynamics of XL019 Administered to Subjects With Polycythemia Vera

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00595829
Enrollment
3
Registered
2008-01-16
Start date
2007-12-31
Completion date
2009-02-28
Last updated
2015-08-21

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

Conditions

Polycythemia Vera

Keywords

Polycythemia Vera, PV

Brief summary

The purpose of this study is to evaluate the safety and tolerability of the JAK2 inhibitor XL019 administered orally in adults with Polycythemia Vera.

Interventions

DRUGXL019

XL019 capsules administered orally

Sponsors

Exelixis
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* The subject has a diagnosis of polycythemia vera (PV), and has failed, or is intolerant of, standard therapies or refuses to take standard medications. * The subject is ≥18 years old. * The subject has an Eastern Cooperative Oncology Group (ECOG) performance status of ≤2. * The subject has adequate organ function. * Subjects who have received phlebotomy due to PV must have documented phlebotomy history for 12 weeks prior to enrollment. * The subject has the capability of understanding the informed consent document and has signed the informed consent document. * Sexually active subjects (male and female) must use medically acceptable methods of contraception during the course of the study. * Female subjects of childbearing potential must have a negative pregnancy test at screening. * The subject has had no other diagnosis of malignancy or evidence of other malignancey for 2 years prior to screening for this study (except non-melanoma skin cancer or in situ carcinoma of the cervix).

Exclusion criteria

* The subject has received treatment for PV within 14 days prior to first dose of XL019 * The subject has uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, hypertension, symptomatic congestive heart failure, unstable angina pectoris, myocardial infarction within 3 months, or cardiac arrhythmias. * The subject is pregnant or breastfeeding. * The subject is known to be positive for the human immunodeficiency virus (HIV). * The subject is unable or unwilling to abide by the study protocol or cooperate fully with the investigator or designee.

Design outcomes

Primary

MeasureTime frame
Safety and tolerability of XL019 as a single agent when orally administered in adults with Polycythemia Vera (PV)Assessed at each visit
Determine the maximum tolerated dose (MTD) and dose-limiting toxicities (DLTs) for XL019Assessed at periodic visits

Secondary

MeasureTime frame
Evaluate pharmacokinetic and pharmacodynamic parameters of XL019 in adults with PVAssessed during periodic visits
Evaluate preliminary efficacy of XL019Assessed weekly or bi-weekly

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026