Lattice vs Conventional Radiation Therapy for Cancer
(LATTICE-PAL Trial)
What You Need to Know Before You Apply
What is the purpose of this trial?
This trial aims to determine if Lattice Radiation Therapy, a specialized form of radiation therapy, can reduce pain more effectively than standard radiation therapy for individuals with large tumors. The trial focuses on patients with solid tumors at least 5 cm in size that cannot be treated with surgery or standard radiation. Participants should require radiation for pain relief and be able to complete simple pain questionnaires. As a Phase 3 trial, this study represents the final step before FDA approval, offering participants an opportunity to contribute to potentially groundbreaking treatment advancements.
Do I have to stop taking my current medications for the trial?
The trial information does not specify whether you need to stop taking your current medications. It's best to discuss this with the trial team or your doctor.
Is there any evidence suggesting that this trial's treatments are likely to be safe?
Research has shown that Lattice Radiation Therapy (LRT) is generally safe for patients. Studies have found that LRT does not lead to severe side effects, such as grade 3 toxicity, which indicates a serious level of side effects. Notably, some patients experienced pain relief and improved movement after treatment.
For tumors larger than 5 cm, LRT appears effective without causing major problems. Compared to other radiation methods, LRT demonstrates favorable safety levels. This suggests that LRT is well-tolerated and typically does not cause severe issues for patients.12345Why are researchers excited about this trial's treatments?
Researchers are excited about Lattice Radiation Therapy (LRT) because it offers a unique approach to targeting cancerous tumors. Unlike conventional radiation therapy, which delivers a uniform dose to the entire tumor, LRT uses spatially fractionated radiation to focus higher doses on specific sub-volumes within the tumor. This technique aims to maximize damage to cancer cells while minimizing harm to surrounding healthy tissue. By concentrating the treatment more precisely, LRT could potentially enhance the effectiveness and safety of radiation therapy for cancer patients.
What evidence suggests that this trial's treatments could be effective for reducing pain in cancer patients?
This trial will compare Lattice Radiation Therapy (LRT) with Conventional Radiation Therapy for cancer treatment. Research has shown that LRT can effectively treat large tumors. Studies have found that LRT helps control tumor growth and quickly reduces pain for patients with large tumors. Specifically, one study noted a 22.5% decrease in tumor size and significant pain relief, suggesting that LRT can improve movement and comfort. Additionally, LRT has provided quick relief for about 80% of patients needing palliative care. Clinical experience supports LRT as a safe and promising option for managing large tumors.13678
Are You a Good Fit for This Trial?
This trial is for adults with large solid tumors (over 5 cm) that can't be removed by surgery or treated with standard radiation. Participants must be able to fill out pain questionnaires, not be pregnant, and be available for follow-up visits.Inclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Treatment
Participants receive either conventional radiation therapy or lattice radiation therapy
Follow-up
Participants are monitored for pain response and treatment-related toxicity
Long-term follow-up
Participants are monitored for overall survival and progression-free survival
What Are the Treatments Tested in This Trial?
Interventions
- Conventional Radiation Therapy
- Lattice Radiation Therapy
Trial Overview
The study compares two types of radiation therapy: conventional radiation versus a newer method called Lattice Radiation Therapy (SFRT), to see which better reduces pain in people with large tumors. Patients are randomly assigned to one of the treatments.
How Is the Trial Designed?
2
Treatment groups
Experimental Treatment
Spatially fractionated radiation therapy, via LATTICE Radiotherapy (LRT), 20Gy in 5 fractions with boost of 67Gy in 5 fractions with boost of 67Gy in 5 fractions to discrete sub-volumes within a tumour
Homogenous RT (20Gy to 35Gy in 5 fractions), planned using volumetric modulated arc therapy or 3D conformal radiotherapy (3DCRT)
Find a Clinic Near You
Who Is Running the Clinical Trial?
University Health Network, Toronto
Lead Sponsor
Citations
Effectiveness and Safety of Lattice Radiotherapy in Treating ...
Collectively, extensive clinical experience and theoretical studies have revealed that LRT offers remarkable tumor control in large tumors with ...
Effectiveness and safety of 3D lattice radiation therapy in ...
The patient reported substantial pain relief and improved mobility post-treatment, with a follow-up MRI at three months showing a 22.5 % reduction in tumor size ...
Lattice Radiation Therapy in clinical practice: A systematic ...
Lattice radiation therapy (LRT) is an innovative type of spatially fractionated radiation therapy. It aims to increase large tumors control probability.
Time-Related Outcome Following Palliative Spatially ...
Short-course LRT emerged as an effective and well-tolerated palliative option for very large lesions, whether treatment-naïve or previously irradiated. Nearly ...
Lattice Radiotherapy for Dose-Escalated Palliation of Bulky ...
The purpose of this research study is to determine if lattice radiation therapy (LRT) will provide better treatment for bulky (large) tumors than current ...
Feasibility, safety, and clinical outcomes analysis of dense ...
The dense-LRT protocol was feasible and safe with no grade 3 acute or late toxicity reported. The 3 month CR and PR response rates were 2/20 (10 ...
Impressive Results after “Metabolism-Guided” Lattice ... - PMC
The lattice technique is a particular form of spatially fractionated radiation therapy, which was demonstrated to be safe and effective for treating advanced ...
Time-Related Outcome Following Palliative Spatially ...
Short-course LRT emerged as an effective and well-tolerated palliative option for very large lesions, whether treatment-naïve or previously irradiated.
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