Ovid Technologies Field Guide

PDQ Backfile(PDQB)


Scope

The Physician Data Query Backfile (PDQB) contains information on clinical trials that are no longer accepting patients. These records are no longer contained in the Physician Data Query Protocol file. All protocols contain detailed information on objectives, patient entry criteria and details of the treatment regimen. Each record retains the same information it had while in the active protocol file, with two exceptions: only the name of the lead investigator and the lead organization are retained, and a closing date is added.


General Information

Producer
National Cancer Institute
R.A. Bloch International Cancer Information Center
Building 82, Room 103
Bethesda, MD 20892
PDQ Service Desk:
301-496-7403
800-624-7890

Years of Coverage
Current information

Default fields for unqualified searches
CN, PR, DI, AB, TX

All Display/Print Fields
AN, UP, CN, ID, PR, PS, TY, PH, TM, DI, AB, TX, LO

Default Display/Print Fields
AN, UP, CN, PR, PH, TM, DI, AB, LO

Update Frequency
Monthly

Searching the PDQ Backfile fields

The following alphabetical list provides the two-letter label, the relevant alias, and an example for each PDQ Backfile field.

=====        ============
Label        Name/Example
=====        ============
ab           Abstract [Word Indexed]
example:     neuropsychiatric.ab.

an           Accession Number [Word and Phrase Indexed]
example 1:   001438.an.
example 2:   pdqp-001438.an.

cn           Cancer Name [Word Indexed]
example:     small cell lung.cn.

di           Drug Identifiers [Word Indexed]
example:     arabinoside.di.

id           Identification Number [Phrase Indexed]
example:     clb-9362.id.

lo           Lead Organizations [Word Indexed]
example 1:   ohio.lo.
example 2:   herbert maurer.lo.

ph           Phase [Word Indexed]
example:     phase iii.ph.

pr           Protocol Name [Word Indexed]
example:     small cell lung.pr.

ps           Protocol Status [Word Indexed]
example 1:   "930528".ps.
example 2:   "93$4".ps.

tm           Therapy Modality [Word Indexed]
example:     radiation therapy.tm.

tx           Detail of Protocol [Word Indexed]
example:     randomized study.tx.

ty           Type of Protocol [Word Indexed]
example:     clinical trial.ty.

up           Update Code [Phrase Indexed]
example:     9703.up.

PDQ Backfile Limit

Childhood Cancers
Sentence Syntax:   limit 1 to childhood cancers


Change to PDQ Backfile from another database

Command Syntax: ..c/pdqb Sentence Syntax: use pdqb

Sample PDQB Document

  * CLOSED PROTOCOL:  Not currently accepting new patients *
Accession Number
  PDQP-010657
Update Code
  9703
Cancer Name
  Osteogenic sarcoma
  Sarcoma, osteogenic
  Metastatic osteogenic sarcoma
  Osteogenic sarcoma, metastatic
  Osteosarcoma, metastatic
  Sarcoma, metastatic osteogenic
  Body site cancer
  -examples truncated-
Identification Number
  MAYO-937502
  NCI-V96-1075
Protocol Name
  Phase II Study of Ifosfamide/Mitomycin/Doxorubicin/Cisplatin plus
  GM-CSF in Advanced Sarcomas or Mesotheliomas (Summary Last Modified
  02/97).
Protocol Status
  Date Activated:  940523
  Date Closed:  960808.
Type of Protocol
  treatment clinical trial.
Phase
  Phase II study.
Therapy Modality
  Chemotherapy.
Drug Identifiers
  Cisplatin
  Cisplatin/doxorubicin/GM-CSF/ifosfamide/mitomycin
  Cisplatin/doxorubicin/ifosfamide/mitomycin
  Doxorubicin
  Granulocyte-macrophage colony-stimulating factor
  Ifosfamide
  Mercaptoethane sulfonate
  Mitomycin
  -example truncated-
Abstract
  OBJECTIVES:
  I.  Assess the therapeutic effectiveness of ifosfamide, mitomycin,
  doxorubicin, and cisplatin (I-MAP) plus GM-CSF in patients with
  advanced sarcomas.
  II.  Observe, preliminarily, the activity of I-MAP plus GM-CSF in
  patients with mesotheliomas.
  PROTOCOL ENTRY CRITERIA:
  --Disease Characteristics--
  Histologically confirmed advanced sarcoma or mesothelioma for which
  no known standard curative therapy exists
  Measurable or evaluable disease
  --Prior/Concurrent Therapy--
  No prior cancer chemotherapy (with the exception of 1 new
  single-agent trial)
  No prior radiotherapy (except to distal extremity sites)
  - sample truncated -
Detail of Protocol
  WARNING:
  Many protocols are potentially hazardous, are intended only for use
  by clinical oncologists in carefully structured settings, and may
  not prove to be more effective than standard treatment.  A
  responsible investigator associated with this protocol should be
  consulted before using this protocol.  Dose and schedule
  modifications are required for patients who develop
  gastrointestinal, hematologic, neurologic, and biochemical (renal,
  hepatic, etc.) and/or other abnormalities after the administration
  of therapy.  Additionally, Federal regulations for the protection of
  human subjects require approval of clinical trials by your local
  Institutional Review Board.
  PROTOCOL OUTLINE:
  Patients are treated with subcutaneous GM-CSF for 4 days followed 3
  -sample truncated-
Lead Organizations
  Lead Organization:
  Mayo Clinic Cancer Center
  Local ID Number:
  MAYO-937502
  Chairmen:
  John H. Edmonson
  507-284-8413.

PDQ Producer Copyright Information

Some material in the PDQ database is from copyrighted publications of the respective copyright claimants. Users of the database are referred to the publication data appearing in the bibliographic citations, as well as to the copyright notices appearing in the original publication, all of which are hereby incorporated by reference. The NCI represents that PDQ is formulated with a reasonable standard of care. Except for this representation, NCI makes no representations or warranties, express or implied, including any implied warranty of merchantability or fitness for a particular purpose, with respect to PDQ. The documents contained in PDQ may be retained for personal or educational use only. Information should not be edited or modified. Any resale or redistribution of all or portions of the information is not permitted.

Because use of the PDQ database for insurance reimbursement decisions is contrary to the nature of the database, which is designed as a research tool and not to reflect all possible treatment options, customers agree to not make the database available to users who wish to use it for reimbursement decision purposes.

Revised 7 July, 1998