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NCT00420056 · ClinicalTrials.gov registry record · Phase 1

An Investigational Study Drug, Palbociclib (PD-0332991), Is Being Studied In Patients With Mantle Cell Lymphoma. Patients Must Have Received Prior Treatment(s) For Mantle Cell Lymphoma.

A Phase 1 study, sponsored by Pfizer.

Completed
Registry status
Phase 1
Development phase
17
Enrollment target

NCT00420056: Completed Phase 1 study, sponsored by Pfizer.

NCT00420056 is a Phase 1 study that has completed, run by Pfizer. The registered enrollment target is 17 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (72% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00420056, a Phase 1 study, has completed, sponsored by Pfizer.

COMPLETED
Registry status
Phase 1
Development phase
17 participants
Enrollment target

Study Summary

This is a pilot study evaluating tumor activity using Positron Emission Tomography, which is also known as a "PET scan". This study will assess the safety of using PD-0332991 in patients with mantle cell lymphoma.

Primary Outcome

Maximum standard uptake value (SUVmax) was defined as the maximum value attained for the ratio of tissue radioactivity concentration at any time and the injected radioactivity concentration divided by the body weight (in kilogram \[kg\]). Phosphorylation of retinoblastoma (Rb) protein in the tumor cells, expressed as phospho-Rb percent positive cells, was assessed using Immunohistochemical staining technique. Change from baseline in \[(18)F\]-FLT-PET SUVmax at Cycle 1 Day 21 and change from base

Interventions

  • DRUG PD-0332991

Trial Details

FieldValue
Enrollment Target 17 participants
Start Date 2007-05
Est. Completion 2012-03
Phase Phase 1
Pfizer

1,845 total trials

What the finished NCT00420056 record still lists

NCT00420056 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 17 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (72% lower).

The record links to 0 conditions, and to 1 intervention - of which PD-0332991 is the first listed.

NCT00420056 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00420056 about?

NCT00420056 is a clinical study titled "An Investigational Study Drug, Palbociclib (PD-0332991), Is Being Studied In Patients With Mantle Cell Lymphoma. Patients Must Have Received Prior Treatment(s) For Mantle Cell Lymphoma.". This is a pilot study evaluating tumor activity using Positron Emission Tomography, which is also known as a "PET scan". This study will assess the safety of using PD-0332991 in patients with mantle cell lymphoma.

What is the current status of trial NCT00420056?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 17 participants. The study started on 2007-05. Estimated completion is 2012-03.

What interventions are being tested in trial NCT00420056?

The interventions under investigation include: PD-0332991 (DRUG).

Who is sponsoring clinical trial NCT00420056?

This trial is sponsored by Pfizer, which has 1,845 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00420056's enrollment target sits among peer trials

17 1785th of 2000 higher than 215 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00420056, the US trial registry maintained by the National Library of Medicine. NCT00420056 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.