Clinical Trial Details
— Status: Active, not recruiting
Administrative data
| NCT number |
NCT04030130 |
| Other study ID # |
Pro00091049-B |
| Secondary ID |
K08CA237858 |
| Status |
Active, not recruiting |
| Phase |
N/A
|
| First received |
|
| Last updated |
|
| Start date |
May 19, 2020 |
| Est. completion date |
August 2024 |
Study information
| Verified date |
December 2023 |
| Source |
Medical University of South Carolina |
| Contact |
n/a |
| Is FDA regulated |
No |
| Health authority |
|
| Study type |
Interventional
|
Clinical Trial Summary
Head and neck cancer squamous cell carcinoma (HNSCC) is a disease with poor survival,
especially for African Americans, despite intense treatment including surgery, radiation, and
chemotherapy. Delays between surgery and the start of postoperative radiation therapy (PORT)
are common, cause excess mortality, and contribute to worse survival in African Americans.
Our research team has developed NDURE (Navigation for Disparities and Untimely Radiation
thErapy), a novel theory-based patient navigation (PN) intervention to decrease delays and
racial disparities starting PORT. In this single-site, open label, parallel-group, randomized
controlled trial of adults with surgically-managed, locally advanced HNSCC, will be
randomized to NDURE versus usual care to assess the preliminary clinical impact of NDURE on
delays and racial disparities starting PORT after surgery for HNSCC. The investigators will
collect information about the rate of PORT delay, racial disparities in the rate of PORT
delay, and completion rate of key cancer care processes. Participants will also complete
validated questionnaires at baseline and post-intervention to understand the theoretical
constructs underlying NDURE . Post-intervention, patients and providers will undergo
interviews to obtain in-depth understanding of the content, format, timing, and delivery of
NDURE to optimize the intervention in preparation for a future multi-site study. NDURE could
provide the first effective intervention to improve the delivery of timely, equitable PORT
after HNC surgery, thereby improving survival for patients with HNC, decreasing racial
disparities in mortality, and developing new standards of clinical care.
Description:
Design: The study design is a Single-Site, Parallel-Group, Randomized-Controlled Trial of
Navigation Versus Usual Care for The Management of Delays and Racial Disparities Starting
Postoperative Radiation Therapy in Adults with Surgically-Managed, Locally Advanced Head and
Neck Squamous Cell Carcinoma
Following screening and informed consent, sociodemographic, oncologic and symptom data will
be prospectively gathered about participants from validated questionnaires and the electronic
medical record (EMR). Participants will then be randomized to 3-sessions of the navigation
intervention (NDURE; Navigation for Disparities and Untimely Radiation thErapy) or usual care
(UC) and followed until the start of postoperative radiation therapy (PORT) following surgery
for head and neck squamous cell carcinoma (HNSCC). Measures of PORT delay, racial disparities
in PORT delay, key cancer care delivery processes, and theoretical constructs underlying PORT
will be evaluated.
Treatment Allocation: Upon enrollment, participants will be randomized 1:1 to NDURE or UC
using a stratified randomization design with strata defined by race (white, African American
[AA]) and location of radiation facility (Medical University of South Carolina ([MUSC],
non-MUSC) because of the known association of these variables with PORT delay.
Delivery of intervention:
NDURE is a theory-based, multi-level PN intervention consisting of three in-person,
clinic-based sessions of manualized PN with multiple intervention components that target
system- (care coordination), interpersonal- (social support), and individual- (Health Belief
Model; perceived susceptibility, severity, barriers, self-efficacy) level health behavior
theoretical constructs to reduce barriers to care, increase HNSCC care delivery, and improve
clinical outcomes (timely, equitable PORT). NDURE will be delivered from surgical
consultation to PORT initiation (~3 months). The NDURE intervention consists of: Navigation
Sessions, the Navigator Manual, the Navigator Patient Guide, structured EMR documentation,
weekly conferences to facilitate care coordination, real-time patient tracking, and
multidisciplinary reporting. The three in-person NDURE navigation sessions, which are
expected to take 30-60 minutes each, will coincide with the presurgical consult, hospital
discharge, and 1st postoperative clinic visit, time points chosen to facilitate case
identification and coordination across key care transitions. Contact beyond the three
prescribed in-person sessions will occur with a frequency and modality (e.g. text message,
email, etc.) dictated by patient and navigator need. During the first in-person session, the
navigator will 1) elicit barriers and facilitators to timely PORT from the patient,
caregiver, and provider, 2) develop the personalized barrier reduction plan (BRP), review it
with the patient, caregiver, and provider, and 3) implement the BRP. At the two subsequent
in-person sessions, the navigator will review and update the BRP in an iterative, dynamic
fashion, identifying new barriers and systematically tracking resolution of prior barriers
until the start of PORT. The Navigator Manual provides a structured resource to guide
intervention delivery and enhance reproducibility. The Patient Guide is 1) literacy-level
appropriate, 2) personalized for each patient's care pathway and BRP, 3) updated
longitudinally as the patient progresses along the cancer continuum, and 4) available to
patients in print and/or electronically via the patient portal in the EMR.
UC consists of oncology visits with provider-led discussion about the referrals needed to
start PORT.
Expected Effect Size and Power Calculation: Power and sample size calculations were performed
using PASS version 08.0.13, "Inequality Tests for Two Independent Proportions." The primary
endpoint for this pilot RCT is the rate of PORT delay, defined by NCCN Guidelines as PORT
initiation > 6 weeks following surgery. Our primary objective is to compare PORT delay rates
between the NDURE and UC arms. Patients (n=150) will be randomized 1:1 to NDURE or UC using a
stratified randomization design with strata defined by race (white or AA) and location of
radiation facility (MUSC or not MUSC). Furthermore, to facilitate evaluation of PORT delay
rates in racial subgroups, the investigators will oversample AAs for a final sample size of
50 white and 25 AA patients in each arm. The investigators assume the rate of PORT delay in
the usual care arm will be 45% and target an absolute reduction of 20% for a PORT delay in
the navigation arm of 25%. This effect size is clinically significant and is a realistic goal
given published rates of improvement in similar (non-randomized) interventions. Seventy-five
patients in each arm yields 83% power to detect a 20% reduction in PORT delay (45% versus
25%) based on a two-sided Mantel-Haenszel test of two independent proportions assuming a
two-sided α = 0.1. Our choice of the Mantel-Haenszel test to compare proportions is based on
the trial's stratified design. Our selection of α = 0.1 and 1 - β = 0.8 is based on the
desire to emphasize power over type I error at this early stage of development (single
institution phase II trial) to ensure follow-up on promising interventions. The investigators
therefore consider our trial to be appropriately and rigorously designed to detect a
clinically meaningful reduction in PORT delay.
Statistical Methods of Analysis: Graphical displays and descriptive statistics for
sociodemographic, oncologic, and baseline symptom severity characteristics will be used to
examine patterns and summarize data for each arm. The percentage of patients who start PORT
within 6 weeks of surgery (the primary outcome measure) and corresponding 95% confidence
interval (CI) will be calculated for both arms and for white and AA subgroups within each arm
separately. The rate of PORT delay will be compared between arms using a Mantel-Haenszel test
of two proportions, with strata defined by race and location of radiation facility. The
investigators will analyze time to PORT as a continuous variable and estimate median time to
PORT for each arm and for racial subgroups within each arm using Kaplan-Meier curves with
Greenwood variance estimation to construct the corresponding 95% CIs. The investigators will
estimate the hazard ratio comparing the two arms using Cox proportional hazards regression
controlling for the stratification variables. The investigators will compare time to PORT
between intervention arms using a stratified log-rank test. For other secondary endpoints,
data will be summarized using frequency and percent for categorical variables and using mean,
median, standard deviation, IQR and range for continuous variables. The investigators will
also construct 95% CIs to provide a measure of uncertainty in estimated proportions and
means. Comparisons between trial arms of other secondary endpoints will be performed using
t-tests and chi-square tests, or Wilcoxon rank sum and Fisher's exact tests as appropriate.
Baseline and post-intervention values of variables measuring the theoretical constructs
underlying NDURE (i.e. care coordination, self-efficacy in cancer care, interpersonal
support, and knowledge) will be compared using Wilcoxon sign rank tests. Comparisons between
arms of the change in scores will be conducted using Wilcoxon rank sum tests.