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Pilot Study of a Catheter-based Ultrasound Hyperthermia System

Pilot Study of a Catheter-based Ultrasound Hyperthermia System

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00911079
Enrollment
13
Registered
2009-06-01
Start date
2009-12-18
Completion date
2020-07-23
Last updated
2021-07-07

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

Conditions

Cervical Cancer, Prostate Cancer

Keywords

Stage III, IV cervical cancer, Rising prostate specific antigen (PSA) after local therapy

Brief summary

RATIONALE: Hyperthermia therapy kills tumor cells by heating them to several degrees above normal body temperature. Ultrasound energy may be able to kill tumor cells by heating up the tumor cells without affecting the surrounding tissue. Implant radiation therapy uses radioactive material placed directly into or near a tumor to kill tumor cells. Giving ultrasound hyperthermia therapy after implant radiation therapy may kill more tumor cells. PURPOSE: This clinical trial is studying ultrasound hyperthermia therapy to see how well it works after implant radiation therapy in treating patients with Stage III/IV cancer of the cervix or prostate cancer with a rising prostate specific antigen (PSA) after prior local therapy.

Detailed description

OUTLINE: Patients undergo standard high-dose rate (HDR) brachytherapy. Approximately 2 hours after brachytherapy, patients undergo catheter-based ultrasound hyperthermia therapy over 60 minutes. Treatment with HDR brachytherapy and hyperthermia therapy repeats within 1-3 weeks. Patients may then undergo 2 additional standard HDR brachytherapy sessions. After completion of study therapy, patients are followed at 1 and 3 months.

Interventions

PROCEDUREHyperthermia

Single course of Catheter-based Ultrasound Hyperthermia (within approximately 2 hours of a Standard-of-care High Dose Rate (HDR) Brachytherapy)

Completion of standard-of-care high dose rate (HDR) Brachytherapy treatments (radiation fractions) using Session #1 catheter implants

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
University of California, San Francisco
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DEVICE_FEASIBILITY
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients who are to be given HDR brachytherapy for treatment of solid tumor of the following: * Cervical cancer Stage III or IV OR * Prostate cancer (with rising prostate specific antigen after prior local therapy) * Age \>=18 years * Eligible for brachytherapy as determined per clinical standard of care. * Ability to give written informed consent and willingness to comply with the requirements of the protocol

Exclusion criteria

* Patients who are not candidates for HDR brachytherapy * Any condition that compromises compliance with the objectives and procedures of this protocol, as judged by the principal investigator

Design outcomes

Primary

MeasureTime frameDescription
Frequency of treatment-related toxicities by treatment typeUp to 3 monthsAll patients treated with at least one hyperthermia session will be included in the safety analysis. The frequency by grade for all treatment-related adverse events will be tabulated by type as classified in NCI Common Terminology Criteria for Adverse Events (CTCAE) version 3 and presented separately for the first and second hyperthermia treatments.
Frequency of treatment-related toxicities by accrual planUp to 3 monthsAll patients treated with at least one hyperthermia session will be included in the safety analysis. The frequency by grade for all treatment-related adverse events will be tabulated by type as classified in NCI Common Terminology Criteria for Adverse Events (CTCAE) version 3 presented for the 2 subsets of patients corresponding to the plan for accrual: the first 3 patients with gynecologic cancer, then the final 9 patients with gynecologic cancer; and the first 3 patients with prostate cancer, then the final 9 patients with prostate cancer
Proportion of patients treated according to the specified temperature and timing criteria.Up to 4 weeksThe feasibility of administering hyperthermia to patients receiving standard brachytherapy will be summarized by the proportion of patients completing the treatment as planned. The proportion and 95% confidence interval will be calculated for each of the two hyperthermia sessions

Secondary

MeasureTime frameDescription
Number of times temperature exceeded by 90% of the measured temperature points (T90)Up to 4 weeksAttainable temperature and thermal dose distributions will be summarized using descriptive statistics and presented separately for each hyperthermia treatment
Average maximum prostate temperature (Tmax)Up to 4 weeksAttainable temperature and thermal dose distributions will be summarized using descriptive statistics and presented separately for each hyperthermia treatment
Cumulative Equivalent Minutes at 43 degree celsius (ºC) for 90% of the measured points (CEM43T90)Up to 4 weeksAttainable temperature and thermal dose distributions will be summarized using descriptive statistics and presented separately for each hyperthermia treatment
Minimum temperature (Tmin)Up to 4 weeksAttainable temperature and thermal dose distributions will be summarized using descriptive statistics and presented separately for each hyperthermia treatment
Median temperature (T50)Up to 4 weeksAttainable temperature and thermal dose distributions will be summarized using descriptive statistics and presented separately for each hyperthermia treatment

Countries

United States

Outcome results

None listed

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