FibrosisPhase 2NCT00001437
Trial of Pentoxifylline in Patients With Functional Disability Caused by Radiation-Induced Advanced Regional Fibrosis
A Phase 2 study testing pentoxifylline in people with Fibrosis and Radiation Injuries, run by National Cancer Institute (NCI) at 1 site in United States.
Trial summary
After initial assessment of their condition by specified clinical and laboratory parameters, each of the patients will be treated for 8 weeks at the standard pentoxifylline dose (400 mg po TID). Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Fibrosis, Radiation Injuries
- What is being tested?
- pentoxifylline
- How many people
- 50 participants
- Where
- 1 siteUnited States
- Study dates
- Jun 1995to Mar 2000
- Phase
- Phase 2
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
POPULATION CHARACTERISTICS:
Regional advanced postradiation fibrosis of the neck, chest wall, pelvis, or extremities causing measurable impairment of specific function, i.e.: Decreased range of motion, Weakness, Sensory deficit, Pain requiring narcotics, Significantly altered activities of daily living.
None of these conditions present either before or during radiotherapy or attributed to surgery or chemotherapy.
Patients with prostate cancer allowed if prostate-specific antigen (PSA) is less than 4.0 ng/mL and the last 3 PSA values were stable or decreasing. Abnormal bone scan or film acceptable if consistent with degenerative disease.
No recurrent or metastatic cancer.
No concurrent second cancer.
PRIOR/CONCURRENT THERAPY: At least 3 months since pentoxifylline.
PATIENT CHARACTERISTICS:
Age: 18 and over.
Performance status: Karnofsky 70%-100% (unrelated to postradiation fibrosis).
CARDIOVASCULAR:
No symptomatic coronary artery disease with frequent anginal episodes necessitating any of the following during past 6 months: Coronary artery bypass, Angioplasty, Pacemaker placement, Thrombolytic treatment.
No chronic cardiac failure with persistent hemodynamic abnormality and ejection fraction less than 40%.
No coagulation, platelet, or vascular disorder that threatens to cause bleeding.
OTHER:
No intolerance to pentoxifylline or other xanthines (e.g., caffeine, theophylline, theobromine).
No seizure disorder.
No peptic ulcer disease.
Willing to undergo serial evaluations (excluding biopsies, laser Doppler, MRI) by NCI rehabilitation specialist for documentation and grading of functional disability.
No pregnant or nursing women.
Adequate contraception encouraged in fertile women.
Trial locations and contacts
1 site in 1 country.
United States1 site
National Cancer Institute (NCI)
Bethesda, Maryland, 20892
About this study
After initial assessment of their condition by specified clinical and laboratory parameters, each of the patients will be treated for 8 weeks at the standard pentoxifylline dose (400 mg po TID). Objective and subjective response parameters will be re-assessed at the end of the treatment and 8 weeks later for possible decay of response.
Read the detailed description
Patients with late fibrovascular sequelae of radiation or of combined radiation and surgery, with quantifiable symptomatology or disability, will be eligible for this trial. This protocol is designed as an open label one arm study. (A placebo controlled randomized trial was approved by the IRB but after extensive negotiation, drug and placebo in slow release formulation will not be provided by the manufacturer). Up to fifty patients will be recruited. After initial assessment of their condition by specified clinical and laboratory parameters, each of the patients will be treated for 8 weeks at the standard pentoxifylline dose (400 mg po TID). Objective and subjective response parameters will be re-assessed at the end of the treatment and 8 weeks later for possible decay of response.
In addition to symptomatic objective and subjective response, blood and urine will be collected for TNF, TGF-beta, and FGF. Cutaneous blood flow and collagen subtyping will be performed on a subset of patients using Laser Doppler, functional MRI techniques and subcutaneous tissue biopsies. We will examine for correlation between clinical response and these biological responses.
- Conditions
- Fibrosis, Radiation Injuries
- Being tested
- pentoxifylline
- Keywords
- Cytokines, Fibrosis Intensity, Post-Radiation Fibrosis, Radiation Injury, Trental
- Medical subject headings
- Fibrosis, Radiation Injuries
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
pentoxifyllineDrug
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Dec 2002 (estimated)
- Study startJun 1995
- Study completionMar 2000
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for FibrosisStudies of the same condition, open and under way.
- More trials run by National Cancer Institute (NCI)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Enrolment
- 50 participants
Sponsor and investigators
- Lead sponsor
- National Cancer Institute (NCI)
- Sponsor type
- US National Institutes of Health
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00001437
- Sponsor's protocol ID
- 950138
- Other IDs
- 95-C-0138
- Status last verified
- May 1999
- First submitted
- 3 Nov 1999
- Last updated
- 4 Mar 2008
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 4 Mar 2008. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Trial of Pentoxifylline in Patients With Functional Disability Caused by Radiation-Induced Advanced Regional Fibrosis
- ClinicalTrials.gov ID
- NCT00001437
- Acronym / sponsor ID
- 950138
- Conditions
- Fibrosis, Radiation Injuries
- Keywords
- Cytokines, Fibrosis Intensity, Post-Radiation Fibrosis, Radiation Injury, Trental
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 50 participants
- Lead sponsor
- National Cancer Institute (NCI)US National Institutes of Health
- Study start
- Jun 1995
- Study completion
- Mar 2000
- First posted
- 10 Dec 2002 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
After initial assessment of their condition by specified clinical and laboratory parameters, each of the patients will be treated for 8 weeks at the standard pentoxifylline dose (400 mg po TID). Objective and subjective response parameters will be re-assessed at the end of the treatment and 8 weeks later for possible decay of response.
Detailed description
Patients with late fibrovascular sequelae of radiation or of combined radiation and surgery, with quantifiable symptomatology or disability, will be eligible for this trial. This protocol is designed as an open label one arm study. (A placebo controlled randomized trial was approved by the IRB but after extensive negotiation, drug and placebo in slow release formulation will not be provided by the manufacturer). Up to fifty patients will be recruited. After initial assessment of their condition by specified clinical and laboratory parameters, each of the patients will be treated for 8 weeks at the standard pentoxifylline dose (400 mg po TID). Objective and subjective response parameters will be re-assessed at the end of the treatment and 8 weeks later for possible decay of response.
In addition to symptomatic objective and subjective response, blood and urine will be collected for TNF, TGF-beta, and FGF. Cutaneous blood flow and collagen subtyping will be performed on a subset of patients using Laser Doppler, functional MRI techniques and subcutaneous tissue biopsies. We will examine for correlation between clinical response and these biological responses.
Study design
- Primary purpose
- Treatment
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| pentoxifylline | Drug | – |
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 4 Mar 2008.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing pentoxifylline in people with Fibrosis and Radiation Injuries, run by National Cancer Institute (NCI) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 4 Mar 2008. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Mar 2008.