Trial Outcomes & Findings for Varian ProBeam Proton Therapy System China Clinical Trial (Hefei) (NCT NCT05463055)

NCT ID: NCT05463055

Last Updated: 2024-11-15

Results Overview

Disease control refers to partial response and stable disease and complete response. Percentage of participants with disease control should be at least 95%. Tumor disease control measured by Magnetic Resonance Imaging (MRI)/Computed Tomography (CT) using Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1). CT or MRI changes will be assessed before and after treatment.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

47 participants

Primary outcome timeframe

3 months ± 7 days after treatment completion, up to 24 weeks

Results posted on

2024-11-15

Participant Flow

The recruitment period was from December 2021 to June 2022. The location of the study was in medical clinic.

Subjects meeting the inclusion/exclusion criteria and enrolled in the trial were treated with ProBeam Proton Therapy System (ProBeam) unless the subject's status isn't fit for proton therapy prior to treatment during treatment planning and target area confirming. For example, if the subject's treatment plan indicated that within the target area wasn't suitable for radiation therapy, then should preclude from the trial.

Participant milestones

Participant milestones
Measure
Single-arm Objective Performance Criteria
The primary effectiveness for clinical trial should be 95% participants with disease control, which includes Complete Response, Partial Response and Stable Disease. The primary safety endpoints is that participants with Common Terminology Criteria for Adverse Events (CTCAE) grade 3 toxic reaction should be lower than 5%, CTCAE level 4 and 5 toxic reaction rate is 0%. Therefore, the clinical trial did not have a control group, but using single-arm objective performance criteria. Participants enrolled will be treated with Proton radiation therapy. The period after the last treatment is divided into short-term follow-up and long-term follow-up, in which short-term follow-up is 3 months and long-term follow-up is 5 years after treatment completion. The clinical trial with short-term follow-up fulfills the requirements for NMPA regulatory registration. All the end points claimed will be achieved in the short-term follow-up stage. The trial is defined as completion once short-term follow-up finished. Long-term follow-up report will be submitted for future post market evaluation when requested by National Medical Products Administration (NMPA). Therefore, long-term follow-up result will not be reported here.
Overall Study
STARTED
47
Overall Study
COMPLETED
45
Overall Study
NOT COMPLETED
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Varian ProBeam Proton Therapy System China Clinical Trial (Hefei)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Single-arm Objective Performance Criteria
n=47 Participants
The primary effectiveness for clinical trial should be 95% participants with disease control, which includes Complete Response, Partial Response and Stable Disease. The primary safety endpoints is that participants with Common Terminology Criteria for Adverse Events (CTCAE) grade 3 toxic reaction should be lower than 5%, CTCAE level 4 and 5 toxic reaction rate is 0%. Therefore, the clinical trial did not have a control group, but using single-arm objective performance criteria. All enrolled subjects were treated with ProBeam Proton Therapy System. The period after the last treatment is divided into short-term follow-up and long-term follow-up, in which short-term follow-up is 3 months after treatment completion and long-term follow-up is 5 years after treatment completion. The clinical trial with short-term follow-up fulfills the requirements for NMPA regulatory registration. All the end points claimed will be achieved in the short-term follow-up stage. The trial is defined as completion once short-term follow-up finished. Long-term follow-up report will be submitted for future post market evaluation when requested by NMPA. Therefore, long-term follow-up result will not reported here.
Age, Continuous
51.7 years
STANDARD_DEVIATION 14.09 • n=99 Participants
Sex: Female, Male
Female
20 Participants
n=99 Participants
Sex: Female, Male
Male
27 Participants
n=99 Participants
Race/Ethnicity, Customized
Han of Chinese
47 Participants
n=99 Participants
single-arm objective performance criteria
47 Participants
n=99 Participants

PRIMARY outcome

Timeframe: 3 months ± 7 days after treatment completion, up to 24 weeks

Disease control refers to partial response and stable disease and complete response. Percentage of participants with disease control should be at least 95%. Tumor disease control measured by Magnetic Resonance Imaging (MRI)/Computed Tomography (CT) using Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1). CT or MRI changes will be assessed before and after treatment.

Outcome measures

Outcome measures
Measure
Single-arm Objective Performance Criteria
n=45 Participants
The primary effectiveness for clinical trial should be 95% participants with disease control, which includes Complete Response, Partial Response and Stable Disease. The primary safety endpoints is that participants with Common Terminology Criteria for Adverse Events (CTCAE) grade 3 toxic reaction should be lower than 5%, CTCAE level 4 and 5 toxic reaction rate is 0%. Therefore, the clinical trial did not have a control group, but using single-arm objective performance criteria. Subjects enrolled in the trial will be treated with Proton radiation therapy. The period after the last treatment is divided into short-term follow-up and long-term follow-up, in which short-term follow-up is 3 months and long-term follow-up is 5 years after treatment completion. The clinical trial with short-term follow-up fulfills the requirements for NMPA regulatory registration. All the end points claimed will be achieved in the short-term follow-up stage. The trial is defined as completion once short-term follow-up finished. Long-term follow-up report will be submitted for future post market evaluation when requested by National Medical Products Administration (NMPA). Therefore, long-term follow-up result will not be reported here.
Percentage of Participants With Disease Control
100 percentage
Interval 92.1 to 100.0

PRIMARY outcome

Timeframe: From enrollment to 3 months ± 7 days after treatment completion, up to 24 weeks

The percentage of participants with CTCAE grade 3 toxic reaction should be lower than 5%. Higher than 5% means worse outcome and will not be accepted. AEs occurred in the clinical trial are recorded and scored by the investigator according to CTCAE version 5.0.

Outcome measures

Outcome measures
Measure
Single-arm Objective Performance Criteria
n=47 Participants
The primary effectiveness for clinical trial should be 95% participants with disease control, which includes Complete Response, Partial Response and Stable Disease. The primary safety endpoints is that participants with Common Terminology Criteria for Adverse Events (CTCAE) grade 3 toxic reaction should be lower than 5%, CTCAE level 4 and 5 toxic reaction rate is 0%. Therefore, the clinical trial did not have a control group, but using single-arm objective performance criteria. Subjects enrolled in the trial will be treated with Proton radiation therapy. The period after the last treatment is divided into short-term follow-up and long-term follow-up, in which short-term follow-up is 3 months and long-term follow-up is 5 years after treatment completion. The clinical trial with short-term follow-up fulfills the requirements for NMPA regulatory registration. All the end points claimed will be achieved in the short-term follow-up stage. The trial is defined as completion once short-term follow-up finished. Long-term follow-up report will be submitted for future post market evaluation when requested by National Medical Products Administration (NMPA). Therefore, long-term follow-up result will not be reported here.
Percentage of Participants With Common Terminology Criteria for Adverse Events (CTCAE) Grade 3 Toxic Reaction
0 Participants

PRIMARY outcome

Timeframe: From enrollment to 3 months ± 7 days after treatment completion, up to 24 weeks

The percentage of subjects with toxic reactions of levels 4 and 5 should be 0%. If CTCAE level 4 and 5 toxic reaction occured, the clinical trial is considered as failure. AEs occurred in the clinical trial are reported and scored by the investigator according to Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.

Outcome measures

Outcome measures
Measure
Single-arm Objective Performance Criteria
n=47 Participants
The primary effectiveness for clinical trial should be 95% participants with disease control, which includes Complete Response, Partial Response and Stable Disease. The primary safety endpoints is that participants with Common Terminology Criteria for Adverse Events (CTCAE) grade 3 toxic reaction should be lower than 5%, CTCAE level 4 and 5 toxic reaction rate is 0%. Therefore, the clinical trial did not have a control group, but using single-arm objective performance criteria. Subjects enrolled in the trial will be treated with Proton radiation therapy. The period after the last treatment is divided into short-term follow-up and long-term follow-up, in which short-term follow-up is 3 months and long-term follow-up is 5 years after treatment completion. The clinical trial with short-term follow-up fulfills the requirements for NMPA regulatory registration. All the end points claimed will be achieved in the short-term follow-up stage. The trial is defined as completion once short-term follow-up finished. Long-term follow-up report will be submitted for future post market evaluation when requested by National Medical Products Administration (NMPA). Therefore, long-term follow-up result will not be reported here.
Percentage of Participants With Common Terminology Criteria for Adverse Events (CTCAE) Grade 4 and 5 Toxic Reaction
0 Participants

Adverse Events

Single-arm Objective Performance Criteria

Serious events: 1 serious events
Other events: 9 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Single-arm Objective Performance Criteria
n=47 participants at risk
The primary effectiveness for clinical trial should be 95% participants with disease control, which includes Complete Response, Partial Response and Stable Disease. The primary safety endpoints is that participants with Common Terminology Criteria for Adverse Events (CTCAE) level 3 toxic reaction should be lower than 5%, CTCAE level 4 and 5 toxic reaction rate is 0%. Therefore, the clinical trial did not have a control group, but using single-arm objective performance criteria. Subjects enrolled in the trial will be treated with Proton radiation therapy. The period after the last treatment is divided into short-term follow-up and long-term follow-up, in which short-term follow-up is 3 months and long-term follow-up is 5 years after treatment completion. The clinical trial with short-term follow-up fulfills the requirements for NMPA regulatory registration. All the end points claimed will be achieved in the short-term follow-up stage. The trial is defined as completion once short-term follow-up finished. Long-term follow-up report will be submitted for future post market evaluation when requested by National Medical Products Administration (NMPA). Therefore, long-term follow-up result will not be reported here.
Respiratory, thoracic and mediastinal disorders
pneumonia
2.1%
1/47 • Number of events 1 • The clinical trial started from subject enrollment to 3 months ± 7 days after the last treatment, up to 24 weeks. Long-term follow-up report (from 3-month follow-up till 5 years) will be submitted for future post market evaluation when requested by NMPA. Therefore, long-term follow-up result will not be reported here.

Other adverse events

Other adverse events
Measure
Single-arm Objective Performance Criteria
n=47 participants at risk
The primary effectiveness for clinical trial should be 95% participants with disease control, which includes Complete Response, Partial Response and Stable Disease. The primary safety endpoints is that participants with Common Terminology Criteria for Adverse Events (CTCAE) level 3 toxic reaction should be lower than 5%, CTCAE level 4 and 5 toxic reaction rate is 0%. Therefore, the clinical trial did not have a control group, but using single-arm objective performance criteria. Subjects enrolled in the trial will be treated with Proton radiation therapy. The period after the last treatment is divided into short-term follow-up and long-term follow-up, in which short-term follow-up is 3 months and long-term follow-up is 5 years after treatment completion. The clinical trial with short-term follow-up fulfills the requirements for NMPA regulatory registration. All the end points claimed will be achieved in the short-term follow-up stage. The trial is defined as completion once short-term follow-up finished. Long-term follow-up report will be submitted for future post market evaluation when requested by National Medical Products Administration (NMPA). Therefore, long-term follow-up result will not be reported here.
Injury, poisoning and procedural complications
Radiation dermatitis
19.1%
9/47 • Number of events 9 • The clinical trial started from subject enrollment to 3 months ± 7 days after the last treatment, up to 24 weeks. Long-term follow-up report (from 3-month follow-up till 5 years) will be submitted for future post market evaluation when requested by NMPA. Therefore, long-term follow-up result will not be reported here.
Injury, poisoning and procedural complications
Radiation mucositis
6.4%
3/47 • Number of events 3 • The clinical trial started from subject enrollment to 3 months ± 7 days after the last treatment, up to 24 weeks. Long-term follow-up report (from 3-month follow-up till 5 years) will be submitted for future post market evaluation when requested by NMPA. Therefore, long-term follow-up result will not be reported here.
General disorders
hair loss
6.4%
3/47 • Number of events 3 • The clinical trial started from subject enrollment to 3 months ± 7 days after the last treatment, up to 24 weeks. Long-term follow-up report (from 3-month follow-up till 5 years) will be submitted for future post market evaluation when requested by NMPA. Therefore, long-term follow-up result will not be reported here.
Blood and lymphatic system disorders
Low White blood cell count
4.3%
2/47 • Number of events 2 • The clinical trial started from subject enrollment to 3 months ± 7 days after the last treatment, up to 24 weeks. Long-term follow-up report (from 3-month follow-up till 5 years) will be submitted for future post market evaluation when requested by NMPA. Therefore, long-term follow-up result will not be reported here.
General disorders
Increased skin pigmentation
4.3%
2/47 • Number of events 2 • The clinical trial started from subject enrollment to 3 months ± 7 days after the last treatment, up to 24 weeks. Long-term follow-up report (from 3-month follow-up till 5 years) will be submitted for future post market evaluation when requested by NMPA. Therefore, long-term follow-up result will not be reported here.

Additional Information

Sophia Shao

Varian Medical Systems

Phone: +86-21-23156400

Results disclosure agreements

  • Principal investigator is a sponsor employee The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release. Sponsor have the right to require Principal Investigator, as applicable, to remove specifically identified Confidential Information (other than Trial Data) and/or to delay the proposed publication, presentation or other public disclosure for an additional sixty (60) days to enable Sponsor to seek patent protection.
  • Publication restrictions are in place

Restriction type: OTHER