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Biomarkers in Chemotherapy-Induced Peripheral Neurotoxicity

Biomarkers in Chemotherapy-Induced Peripheral Neurotoxicity: Better Tools and Understanding

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03348956
Acronym
CIPN
Enrollment
7
Registered
2017-11-21
Start date
2018-03-01
Completion date
2022-02-14
Last updated
2024-06-20

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

Conditions

CIPN - Chemotherapy-Induced Peripheral Neuropathy

Brief summary

This pilot study will attempt to establish the feasibility of using tissue oxygen measurements and the protein, neurofilament light chain (NF-L), as potential biomarkers for chemotherapy-induced peripheral neuropathy (CIPN). Thirty (30) subjects scheduled to begin taxane-based chemotherapy for breast tumor will be assigned to receive an India ink injection under the skin of the foot. The ink will be used to make up to five (5) 45-minute electron paramagnetic resonance (EPR) oximetry readings prior to the start of chemotherapy. Subjects will undergo electrophysiologic assessments including nerve conduction studies, in addition to a neurological examination prior to the start of chemotherapy. Subjects will have the EPR oximetry readings, electrophysiologic tests, and neurological examination two more times: at the halfway point of their chemotherapy treatment -- or at the onset of CIPN symptoms -- and again after chemotherapy has been completed. Subjects will also have blood drawn prior to beginning taxane-based chemotherapy, prior to every scheduled chemotherapy treatment, and after completion of chemotherapy in order to test for neurofilament light chain (NF-L).

Detailed description

Therapy with chemotherapeutic drugs can make a huge impact on survival and quality of life in patients with cancer. Advances in medical monitoring and the effectiveness of these therapies have significantly improved outcomes so that a definitive cure or long-term survival is more likely. Cancer survivors are used to dealing with serious side effects of their therapy; however, some of the side effects from the chemotherapy drugs persist even after the medication course is completed. The impact of these sequelae on quality of survival is increasingly being appreciated and forming an important new direction of cancer care. One of the more severe side effects of chemotherapy is peripheral neurotoxicity resulting in neuropathy or neuronopathy. Chemotherapy-induced peripheral neurotoxicity (CIPN) is one of the least predictable and most prolonged sequelae with effects ranging from pain, numbness and tingling to diffuse weakness sometimes to the extent of paralysis. It results from damage or alteration in function of peripheral nerves usually, but not always, in a length-dependent manner. An indirect impact of CIPN includes difficulties with balance and susceptibility to falls. There are currently no therapies that have been proven to prevent CIPN. Similarly, there are few medications that are known to be effective in the reversing CIPN once it develops or effectively treating symptoms of CIPN. Currently, diagnosis is based mainly on clinical examination and electrophysiological testing to monitor CIPN; identification of candidate biomarkers through which disease onset can be identified at an earlier stage and which reflect presumed pathophysiologic mechanisms is of paramount importance. There are different theories of CIPN pathogenesis. One of the leading hypotheses relates to mitochondrial dysfunction and oxidative stress affecting both the dorsal root ganglia neurons and supportive endothelial cells of the vasa nervorum. Here at Dartmouth, a specialized technique has been developed that allows the non-invasive assessment of tissue oxygen in and around peripheral nerve. This technique, called electron paramagnetic resonance (EPR) oximetry, allows for repeated measurements over time that can be correlated with other metrics of peripheral nerve function. Given its relevance to an important pathophysiologic mechanism of disease, EPR oximetry may provide an early marker of disease onset. Neurofilament light chain (NF-L) is also emerging as a sensitive blood-based biomarker of axonal degeneration. NF-L is a component of the axonal cytoskeleton that leaks out of degenerating axons. NF-L has been reported to be elevated in plasma or serum in a wide range of neurodegenerative disorders, including CNS disorders such as multiple sclerosis and ALS as well as PNS disorders such as Charcot Marie Tooth and Guillain-Barre syndrome. To date, there are no published reports of elevated blood NF-L levels in patients with CIPN, although it has been reported to increase in rat model of vincristine-induced neuropathy. In this proposal, the investigators will be testing the hypothesis that these could both be biomarkers of CIPN. It is hoped that the oximetry measurement and blood NF-L levels will (i) reflect the changes that occur on a cellular level and the damaged nerves, (ii) reflect the damage occurring to nerves more sensitively than existing techniques, and (iii) help to better understand the reason the nerves are being damaged. It is also hoped that these will be something that can be used in future clinical trials.

Interventions

DIAGNOSTIC_TESTEPR Oximetry

Subjects will have up to five EPR oximetry readings at each study visit. Subjects will place the foot with the paramagnetic ink injection between the two magnets of the EPR device. Continuous scans will be acquired for 10 minutes while the subject breathes room air, 10 minutes while the subject breathes enriched 100% oxygen, and 10 minutes while breathing room air again.

Sponsors

Disarm Therapeutics
CollaboratorINDUSTRY
Dartmouth-Hitchcock Medical Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

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

Inclusion criteria

* Scheduled to receive chemotherapy with taxane compounds for the treatment of breast cancer. * No prior taxane or platinum chemotherapy prior to enrollment. * Life expectancy greater than or equal to 12 months. * Able to provide independent informed consent for the study. * Able to undergo EPR oximetry * Age 18 years or older

Exclusion criteria

* Central nervous system or other impairments that interfere with clinical and electrophysiological assessment. * Unable to provide independent informed consent. * Pacemaker or other metallic objects that would be contraindicated for MRI. * A requirement for supplemental oxygen at baseline, or known, severe chronic obstructive pulmonary disease . * Previous exposure to neurotoxic chemotherapeutic agents.

Design outcomes

Primary

MeasureTime frameDescription
Relative Change in % pO2Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)EPR Oximetry will measure tissue oxygen levels in the injected foot during 10 minutes of breathing room air, 10 minutes while breathing 100% oxygen, and 10 minutes of room air.

Secondary

MeasureTime frameDescription
Change in Nerve Conduction_Motor_ (Amplitude)_Tibial-AHPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CMAP AMP, EDBPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CMAP, ATPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Tibial CMAP, AHPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Dorsal Sural CVPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Med Plantar CVPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Sural CVPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CV, DistalPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Mean Score of Neuro-Quality of Life - Positive Affect and Well-Being ScalePre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Neuropathy-Specific Quality of Life scale measuring Positive Affect and Well Being The range in score is 23 to 115, with a low score indicating a less positive affect and well-being
Mean Score of Neuro-Quality of Life - Satisfaction With Social Roles and Activities ScalePre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Neuropathy-Specific Quality of Life scale measuring Satisfaction with Social Roles and Activities The range in scores is 47 to 235, with a lower score indicating less satisfaction with social roles and activities
Mean Score of Neuro-Quality of Life - Lower Extremity Function (Mobility) ScalePre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Neuropathy-Specific Quality of Life scale measuring Lower Extremity Function (Mobility) The range in scores is 19 to 95, with a lower score indicating more difficulty with lower extremity function
Mean Score of Neuro-Quality of Life - Upper Extremity Function (Fine Motor, Activities of Daily Living) ScalePre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Neuropathy-Specific Quality of Life scale measuring Upper Extremity Function (Fine Motor, Activities of Daily Living) The range in scores is 20 to 100, with a low score indicating more difficulty with upper extremity function
Mean Score of The Neuropathy Total Symptom Score-6 QuestionnairePre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Neuropathy Total Symptom Score questionnaire with 6 questions The range is scores is 0 to 22 with a higher score indicating worse symptoms
Mean Score of Toronto Clinical Neuropathy Scoring SystemPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Toronto Clinical Neuropathy Scoring System The range in scores is 0 to 19 with higher scores indicating worse neuropathy
Mean Score of National Cancer Institute - Common Toxicity CriteriaPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)National Cancer Insitute - Common Toxicity Criteria The range in scores is 0 to 5, with higher scores indicating worse toxicity
Mean Score of Total Neuropathy ScoresPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Total Neuropathy score The range in scores is 0 to 40, with higher scores indicating worse neuropathy
Mean Score of Survey of Autonomic Symptoms, Column BPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Survey of Autonomic Symptoms, questions in Column B The range in scores is 0 to 55 for women and 0 to 60 for men, with higher scores indicating more bothersome symptoms
Mean Score of McGill Pain Visual Analog ScalePre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)McGill Visual Analog Scale for Pain The range in scores is 0 to 100, with 0 indicting No pain and 100 indicating Worst pain possible
Mean Scores of Short Form McGill Pain QuestionnairePre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Short Form McGill Pain Questionnaire The range in scores is 0 to 15, with higher scores indicating worse pain
Mean Score of Survey of Autonomic Symptoms, Column APre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Survey of Autonomic Symptoms, questions in column A The range in scores is 0 to 11 for women and 0 to 12 for men, with higher scores indicating more symptoms
Serum NF-L Levels1 yearChanges in serum NFL levels over the course of chemotherapy will be monitored to determine if NFL can be used as a biomarker for axonal damage in patients who develop CIPN. NFL will be measured at baseline, before each round of chemotherapy and at the completion of chemotherapy. Changes in NFL will be compared between patients who develop CIPN and those that do not.
Neurologic Examination_ Strength_ Toe FanPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. MRC scale for muscle strength (0-5) Grade 5: Normal Grade 4: Movement against gravity and resistance Grade 3: Movement against gravity over (almost) the full range Grade 2: Movement of the limb but not against gravity Grade 1: Visible contraction without movement of the limb (not existent for hip flexion) Grade 0: No visible contraction
Neurologic Examination_ Strength_ Toe FlexPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. MRC scale for muscle strength (0-5) Grade 5: Normal Grade 4: Movement against gravity and resistance Grade 3: Movement against gravity over (almost) the full range Grade 2: Movement of the limb but not against gravity Grade 1: Visible contraction without movement of the limb (not existent for hip flexion) Grade 0: No visible contraction
Neurologic Examination_ Strength_ InvPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. MRC scale for muscle strength (0-5) Grade 5: Normal Grade 4: Movement against gravity and resistance Grade 3: Movement against gravity over (almost) the full range Grade 2: Movement of the limb but not against gravity Grade 1: Visible contraction without movement of the limb (not existent for hip flexion) Grade 0: No visible contraction
Neurologic Examination_ Strength_ EvPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. MRC scale for muscle strength (0-5) Grade 5: Normal Grade 4: Movement against gravity and resistance Grade 3: Movement against gravity over (almost) the full range Grade 2: Movement of the limb but not against gravity Grade 1: Visible contraction without movement of the limb (not existent for hip flexion) Grade 0: No visible contraction
Neurologic Examination_ Strength_ ADFPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. MRC scale for muscle strength (0-5) Grade 5: Normal Grade 4: Movement against gravity and resistance Grade 3: Movement against gravity over (almost) the full range Grade 2: Movement of the limb but not against gravity Grade 1: Visible contraction without movement of the limb (not existent for hip flexion) Grade 0: No visible contraction
Neurologic Examination_ Vibration Sense_ToePre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. The position of the intersect is recorded on an arbitrary scale from 0 to 8 on a Rydel-Seiffer tuning fork once the subject is no longer perceiving vibration. The higher the number, the better the vibratory sense.
Neurologic Examination_ Vibration Sense_MMPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. The position of the intersect is recorded on an arbitrary scale from 0 to 8 on a Rydel-Seiffer tuning fork once the subject is no longer perceiving vibration. The higher the number, the better the vibratory sense.
Neurologic Examination_ Vibration Sense_KneePre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. The position of the intersect is recorded on an arbitrary scale from 0 to 8 on a Rydel-Seiffer tuning fork once the subject is no longer perceiving vibration. The higher the number, the better the vibratory sense.
Neurologic Examination_ Vibration Sense_DIP2Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. The position of the intersect is recorded on an arbitrary scale from 0 to 8 on a Rydel-Seiffer tuning fork once the subject is no longer perceiving vibration. The higher the number, the better the vibratory sense.
Neurologic Examination_ Vibration Sense_DIP5Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. The position of the intersect is recorded on an arbitrary scale from 0 to 8 on a Rydel-Seiffer tuning fork once the subject is no longer perceiving vibration. The higher the number, the better the vibratory sense.
Neurologic Examination_ Deep Tendon Reflexes _ BicepsPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. REFLEX SCALE for Deep Tendon Reflexes (DTRs) The score ranges from 0 - 9, where 0 is no reflex response (areflexia)/always abnormal, greater than 1 and less than 3 is normal, and 9 is a tap that elicits a repeating reflex (clonus)/always abnormal.
Neurologic Examination_ Deep Tendon Reflexes _ TricepsPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. REFLEX SCALE for Deep Tendon Reflexes (DTRs) The score ranges from 0 - 9, where 0 is no reflex response (areflexia)/always abnormal, greater than 1 and less than 3 is normal, and 9 is a tap that elicits a repeating reflex (clonus)/always abnormal.
Neurologic Examination_ Deep Tendon Reflexes _ BRPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. REFLEX SCALE for Deep Tendon Reflexes (DTRs) The score ranges from 0 - 9, where 0 is no reflex response (areflexia)/always abnormal, greater than 1 and less than 3 is normal, and 9 is a tap that elicits a repeating reflex (clonus)/always abnormal.
Neurologic Examination_ Deep Tendon Reflexes _ PatellaPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. REFLEX SCALE for Deep Tendon Reflexes (DTRs) The score ranges from 0 - 9, where 0 is no reflex response (areflexia)/always abnormal, greater than 1 and less than 3 is normal, and 9 is a tap that elicits a repeating reflex (clonus)/always abnormal.
Neurologic Examination_ Deep Tendon Reflexes _ AchillesPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. REFLEX SCALE for Deep Tendon Reflexes (DTRs) The score ranges from 0 - 9, where 0 is no reflex response (areflexia)/always abnormal, greater than 1 and less than 3 is normal, and 9 is a tap that elicits a repeating reflex (clonus)/always abnormal.
Mean Nerve Conduction Metrics (Amplitude)_DORSAL SURALPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Change in Nerve Conduction Metrics (Amplitude)_MED PLANTARPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Change in Nerve Conduction_Motor_ (Amplitude)_Peron-TAPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Mean of the Difference in Nerve Conduction Amplitudes Between Pre-Mid and Pre-Post exposure_Dorsal SuralPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy. The outcome measure is reporting the average of the differences in amplitudes Pre-Mid and Pre-Post exposure (for example, the change from Pre and Mid is calculated, and then the change across all participants is averaged).
Change in Nerve Conduction/Mixed Nerve Amplitudes _Medial PlantarPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Change in Nerve Conduction/Mixed Nerve Amplitudes _SuralPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Change in Nerve Conduction_Motor_ (Amplitude)_Peron-EDBPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.
Change in Nerve Conduction Metrics (Amplitude)_SURALPre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Countries

United States

Participant flow

Participants by arm

ArmCount
EPR Oximetry
All subjects in the study will receive the paramagnetic India ink injection to the foot. At three time points (pre-exposure, during-exposure or CIPN incidence, and post exposure), subjects will have three EPR oximetry readings, a neurological examination, and electrophysiologic testing. EPR Oximetry: Subjects will have up to five EPR oximetry readings at each study visit. Subjects will place the foot with the paramagnetic ink injection between the two magnets of the EPR device. Continuous scans will be acquired for 10 minutes while the subject breathes room air, 10 minutes while the subject breathes enriched 100% oxygen, and 10 minutes while breathing room air again.
7
Total7

Baseline characteristics

CharacteristicEPR Oximetry
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
1 Participants
Age, Categorical
Between 18 and 65 years
6 Participants
Body Mass Index (BMI)30.5 kg/m2
STANDARD_DEVIATION 6.6
Race and Ethnicity Not Collected— Participants
Region of Enrollment
United States
7 participants
Sex: Female, Male
Female
7 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 7
other
Total, other adverse events
6 / 7
serious
Total, serious adverse events
0 / 7

Outcome results

Primary

Relative Change in % pO2

EPR Oximetry will measure tissue oxygen levels in the injected foot during 10 minutes of breathing room air, 10 minutes while breathing 100% oxygen, and 10 minutes of room air.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: 3 patients underwent testing. 1 patient did not undergo the 100% oxygen condition at the End of Chemo, so there is no data for Mid-Point or recovery for that patient. Data was not gathered for the remaining 4 participants.

ArmMeasureGroupValue (MEAN)
Relative % pO2 Change From Baseline While Breathing Room AirRelative Change in % pO2End of Chemo25.3 change in % oxygenation
Relative % pO2 Change From Baseline While Breathing Room AirRelative Change in % pO2Mid-Point12.3 change in % oxygenation
Relative % pO2 Change From Baseline While Breathing 100% OxygenRelative Change in % pO2End of Chemo9.5 change in % oxygenation
Relative % pO2 Change From Baseline While Breathing 100% OxygenRelative Change in % pO2Mid-Point19 change in % oxygenation
Relative % pO2 Change From Baseline While Breathing Room Air (Recovery)Relative Change in % pO2End of Chemo42.5 change in % oxygenation
Relative % pO2 Change From Baseline While Breathing Room Air (Recovery)Relative Change in % pO2Mid-Point24 change in % oxygenation
Secondary

Change in Nerve Conduction Metrics (Amplitude)_MED PLANTAR

Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction Metrics (Amplitude)_MED PLANTARPre7.5 uVStandard Deviation 7.2
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction Metrics (Amplitude)_MED PLANTARMid6.4 uVStandard Deviation 7.1
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction Metrics (Amplitude)_MED PLANTARPost5.7 uVStandard Deviation 6.9
Secondary

Change in Nerve Conduction Metrics (Amplitude)_SURAL

Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction Metrics (Amplitude)_SURALPre21.9 uVStandard Deviation 13.1
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction Metrics (Amplitude)_SURALMid16.6 uVStandard Deviation 7
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction Metrics (Amplitude)_SURALPost19.5 uVStandard Deviation 13.4
Secondary

Change in Nerve Conduction/Mixed Nerve Amplitudes _Medial Plantar

Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre-Mid- is prior to chemotherapy exposure Pre-Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction/Mixed Nerve Amplitudes _Medial PlantarPre-Mid-Mean-1.0 uV
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction/Mixed Nerve Amplitudes _Medial PlantarPre-Post-Mean-1.7 uV
Secondary

Change in Nerve Conduction/Mixed Nerve Amplitudes _Sural

Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre-Mid- is prior to chemotherapy exposure Pre-Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction/Mixed Nerve Amplitudes _SuralPre-Mid-Mean-5.2 uV
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction/Mixed Nerve Amplitudes _SuralPre-Post-Mean-2.3 uV
Secondary

Change in Nerve Conduction_Motor_ (Amplitude)_Peron-EDB

Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction_Motor_ (Amplitude)_Peron-EDBPre4.6 mVStandard Deviation 1.1
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction_Motor_ (Amplitude)_Peron-EDBMid3.4 mVStandard Deviation 1.9
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction_Motor_ (Amplitude)_Peron-EDBPost3.4 mVStandard Deviation 2.7
Secondary

Change in Nerve Conduction_Motor_ (Amplitude)_Peron-TA

Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction_Motor_ (Amplitude)_Peron-TAPre5.2 mVStandard Deviation 1.4
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction_Motor_ (Amplitude)_Peron-TAMid5.1 mVStandard Deviation 1.3
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction_Motor_ (Amplitude)_Peron-TAPost5.1 mVStandard Deviation 1.9
Secondary

Change in Nerve Conduction_Motor_ (Amplitude)_Tibial-AH

Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction_Motor_ (Amplitude)_Tibial-AHPre9.2 mVStandard Deviation 3.9
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction_Motor_ (Amplitude)_Tibial-AHMid9.0 mVStandard Deviation 5.7
Relative % pO2 Change From Baseline While Breathing Room AirChange in Nerve Conduction_Motor_ (Amplitude)_Tibial-AHPost10.1 mVStandard Deviation 6.8
Secondary

Mean Nerve Conduction Metrics (Amplitude)_DORSAL SURAL

Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Nerve Conduction Metrics (Amplitude)_DORSAL SURALPre6.2 uVStandard Deviation 8.8
Relative % pO2 Change From Baseline While Breathing Room AirMean Nerve Conduction Metrics (Amplitude)_DORSAL SURALMid6.3 uVStandard Deviation 7.7
Relative % pO2 Change From Baseline While Breathing Room AirMean Nerve Conduction Metrics (Amplitude)_DORSAL SURALPost3.5 uVStandard Deviation 4.7
Secondary

Mean of the Difference in Nerve Conduction Amplitudes Between Pre-Mid and Pre-Post exposure_Dorsal Sural

Electrophysiologic testing will measure nerve conduction amplitude in patients before and after exposure to a standard regimen of neurotoxic chemotherapy. The outcome measure is reporting the average of the differences in amplitudes Pre-Mid and Pre-Post exposure (for example, the change from Pre and Mid is calculated, and then the change across all participants is averaged).

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre-Mid- is prior to chemotherapy exposure Pre-Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)
Relative % pO2 Change From Baseline While Breathing Room AirMean of the Difference in Nerve Conduction Amplitudes Between Pre-Mid and Pre-Post exposure_Dorsal SuralPre-Mid-Mean-0.47 uV
Relative % pO2 Change From Baseline While Breathing Room AirMean of the Difference in Nerve Conduction Amplitudes Between Pre-Mid and Pre-Post exposure_Dorsal SuralPre-Post-Mean-3.87 uV
Secondary

Mean Score of McGill Pain Visual Analog Scale

McGill Visual Analog Scale for Pain The range in scores is 0 to 100, with 0 indicting No pain and 100 indicating Worst pain possible

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of McGill Pain Visual Analog ScalePre21.0 score on a scaleStandard Deviation 23.8
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of McGill Pain Visual Analog ScaleMid27.9 score on a scaleStandard Deviation 25.5
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of McGill Pain Visual Analog ScalePost27.3 score on a scaleStandard Deviation 30.9
Secondary

Mean Score of National Cancer Institute - Common Toxicity Criteria

National Cancer Insitute - Common Toxicity Criteria The range in scores is 0 to 5, with higher scores indicating worse toxicity

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of National Cancer Institute - Common Toxicity CriteriaPre0.3 score on a scaleStandard Deviation 0.8
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of National Cancer Institute - Common Toxicity CriteriaMid0.7 score on a scaleStandard Deviation 1
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of National Cancer Institute - Common Toxicity CriteriaPost1.4 score on a scaleStandard Deviation 0.8
Secondary

Mean Score of Neuro-Quality of Life - Lower Extremity Function (Mobility) Scale

Neuropathy-Specific Quality of Life scale measuring Lower Extremity Function (Mobility) The range in scores is 19 to 95, with a lower score indicating more difficulty with lower extremity function

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Lower Extremity Function (Mobility) ScalePre89.1 score on a scaleStandard Deviation 10.1
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Lower Extremity Function (Mobility) ScaleMid90.6 score on a scaleStandard Deviation 7.1
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Lower Extremity Function (Mobility) ScalePost91.4 score on a scaleStandard Deviation 5.9
Secondary

Mean Score of Neuro-Quality of Life - Positive Affect and Well-Being Scale

Neuropathy-Specific Quality of Life scale measuring Positive Affect and Well Being The range in score is 23 to 115, with a low score indicating a less positive affect and well-being

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion.

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Positive Affect and Well-Being ScalePre93.9 score on a scaleStandard Deviation 21.5
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Positive Affect and Well-Being ScaleMid96.3 score on a scaleStandard Deviation 17.4
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Positive Affect and Well-Being ScalePost100.6 score on a scaleStandard Deviation 17.1
Secondary

Mean Score of Neuro-Quality of Life - Satisfaction With Social Roles and Activities Scale

Neuropathy-Specific Quality of Life scale measuring Satisfaction with Social Roles and Activities The range in scores is 47 to 235, with a lower score indicating less satisfaction with social roles and activities

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Satisfaction With Social Roles and Activities ScalePre172.9 score on a scaleStandard Deviation 46.4
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Satisfaction With Social Roles and Activities ScaleMid187.1 score on a scaleStandard Deviation 33.5
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Satisfaction With Social Roles and Activities ScalePost187.6 score on a scaleStandard Deviation 50
Secondary

Mean Score of Neuro-Quality of Life - Upper Extremity Function (Fine Motor, Activities of Daily Living) Scale

Neuropathy-Specific Quality of Life scale measuring Upper Extremity Function (Fine Motor, Activities of Daily Living) The range in scores is 20 to 100, with a low score indicating more difficulty with upper extremity function

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Upper Extremity Function (Fine Motor, Activities of Daily Living) ScalePost97.9 score on a scaleStandard Deviation 4.4
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Upper Extremity Function (Fine Motor, Activities of Daily Living) ScalePre97.0 score on a scaleStandard Deviation 5.5
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Neuro-Quality of Life - Upper Extremity Function (Fine Motor, Activities of Daily Living) ScaleMid99.3 score on a scaleStandard Deviation 1.5
Secondary

Mean Score of Survey of Autonomic Symptoms, Column A

Survey of Autonomic Symptoms, questions in column A The range in scores is 0 to 11 for women and 0 to 12 for men, with higher scores indicating more symptoms

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Survey of Autonomic Symptoms, Column APost2.0 score on a scaleStandard Deviation 1.4
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Survey of Autonomic Symptoms, Column AMid2.3 score on a scaleStandard Deviation 0.8
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Survey of Autonomic Symptoms, Column APre2.4 score on a scaleStandard Deviation 1.1
Secondary

Mean Score of Survey of Autonomic Symptoms, Column B

Survey of Autonomic Symptoms, questions in Column B The range in scores is 0 to 55 for women and 0 to 60 for men, with higher scores indicating more bothersome symptoms

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Survey of Autonomic Symptoms, Column BPre5.9 score on a scaleStandard Deviation 3.7
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Survey of Autonomic Symptoms, Column BMid6.9 score on a scaleStandard Deviation 4.9
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Survey of Autonomic Symptoms, Column BPost5.2 score on a scaleStandard Deviation 3.9
Secondary

Mean Score of The Neuropathy Total Symptom Score-6 Questionnaire

Neuropathy Total Symptom Score questionnaire with 6 questions The range is scores is 0 to 22 with a higher score indicating worse symptoms

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of The Neuropathy Total Symptom Score-6 QuestionnairePre0.3 score on a scaleStandard Deviation 0.5
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of The Neuropathy Total Symptom Score-6 QuestionnaireMid2.2 score on a scaleStandard Deviation 1.8
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of The Neuropathy Total Symptom Score-6 QuestionnairePost3.1 score on a scaleStandard Deviation 3.1
Secondary

Mean Score of Toronto Clinical Neuropathy Scoring System

Toronto Clinical Neuropathy Scoring System The range in scores is 0 to 19 with higher scores indicating worse neuropathy

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Toronto Clinical Neuropathy Scoring SystemPre2.1 score on a scaleStandard Deviation 2
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Toronto Clinical Neuropathy Scoring SystemMid5.3 score on a scaleStandard Deviation 3.4
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Toronto Clinical Neuropathy Scoring SystemPost5.0 score on a scaleStandard Deviation 3.7
Secondary

Mean Score of Total Neuropathy Scores

Total Neuropathy score The range in scores is 0 to 40, with higher scores indicating worse neuropathy

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Total Neuropathy ScoresPre1.3 score on a scaleStandard Deviation 1.1
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Total Neuropathy ScoresMid6.0 score on a scaleStandard Deviation 5
Relative % pO2 Change From Baseline While Breathing Room AirMean Score of Total Neuropathy ScoresPost8.1 score on a scaleStandard Deviation 6.2
Secondary

Mean Scores of Short Form McGill Pain Questionnaire

Short Form McGill Pain Questionnaire The range in scores is 0 to 15, with higher scores indicating worse pain

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: Pre- is prior to chemotherapy exposure Mid- is midway through chemotherapy regimen Post- is one week or more after chemotherapy completion

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirMean Scores of Short Form McGill Pain QuestionnairePre3.3 score on a scaleStandard Deviation 4
Relative % pO2 Change From Baseline While Breathing Room AirMean Scores of Short Form McGill Pain QuestionnaireMid2.4 score on a scaleStandard Deviation 2.1
Relative % pO2 Change From Baseline While Breathing Room AirMean Scores of Short Form McGill Pain QuestionnairePost2.3 score on a scaleStandard Deviation 1.9
Secondary

Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Dorsal Sural CV

Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: For the dorsal sural sensory nerve, a change in mean velocity pre-chemotherapy to mid-chemotherapy is reported as well as the change in mean velocity for pre-chemotherapy to post-chemotherapy

ArmMeasureGroupValue (MEAN)
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Dorsal Sural CVPre-Mid1.8 m/s
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Dorsal Sural CVPre-Post-1.5 m/s
Secondary

Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Med Plantar CV

Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: For the Med Plantar sensory nerve, a change in mean velocity pre-chemotherapy to mid-chemotherapy is reported as well as the change in mean velocity for pre-chemotherapy to post-chemotherapy

ArmMeasureGroupValue (MEAN)
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Med Plantar CVPre-Post-3.5 m/s
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Med Plantar CVPre-Mid-1.2 m/s
Secondary

Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CMAP AMP, EDB

Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: For the dorsal sural sensory nerve, a change in mean velocity pre-chemotherapy to mid-chemotherapy is reported as well as the change in mean velocity for pre-chemotherapy to post-chemotherapy

ArmMeasureGroupValue (MEAN)
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CMAP AMP, EDBPre-Mid-1.1 m/s
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CMAP AMP, EDBPre-Post-1.4 m/s
Secondary

Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CMAP, AT

Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: For the dorsal sural sensory nerve, a change in mean velocity pre-chemotherapy to mid-chemotherapy is reported as well as the change in mean velocity for pre-chemotherapy to post-chemotherapy

ArmMeasureGroupValue (MEAN)
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CMAP, ATPre-Mid0 m/s
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CMAP, ATPre-Post0 m/s
Secondary

Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CV, Distal

Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: For the Peroneal CV, distal sensory nerve, a change in mean velocity pre-chemotherapy to mid-chemotherapy is reported as well as the change in mean velocity for pre-chemotherapy to post-chemotherapy

ArmMeasureGroupValue (MEAN)
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CV, DistalPre-Mid1.6 m/s
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Peroneal CV, DistalPre-Post-2.2 m/s
Secondary

Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Sural CV

Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: For the Sural sensory nerve, a change in mean velocity pre-chemotherapy to mid-chemotherapy is reported as well as the change in mean velocity for pre-chemotherapy to post-chemotherapy

ArmMeasureGroupValue (MEAN)
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Sural CVPre-Mid2.7 m/s
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Sural CVPre-Post0.3 m/s
Secondary

Nerve Conduction Metrics as Measured by Mean Change (Velocity) for Tibial CMAP, AH

Electrophysiologic testing will measure nerve conduction velocity in patients before and after exposure to a standard regimen of neurotoxic chemotherapy.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

Population: For the dorsal sural sensory nerve, a change in mean velocity pre-chemotherapy to mid-chemotherapy is reported as well as the change in mean velocity for pre-chemotherapy to post-chemotherapy

ArmMeasureGroupValue (MEAN)
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Tibial CMAP, AHPre-Mid-0.2 m/s
Relative % pO2 Change From Baseline While Breathing Room AirNerve Conduction Metrics as Measured by Mean Change (Velocity) for Tibial CMAP, AHPre-Post0.9 m/s
Secondary

Neurologic Examination_ Deep Tendon Reflexes _ Achilles

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. REFLEX SCALE for Deep Tendon Reflexes (DTRs) The score ranges from 0 - 9, where 0 is no reflex response (areflexia)/always abnormal, greater than 1 and less than 3 is normal, and 9 is a tap that elicits a repeating reflex (clonus)/always abnormal.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ AchillesPre4.14 units on a scaleStandard Deviation 0.77
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ AchillesMid1.57 units on a scaleStandard Deviation 1.78
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ AchillesPost1 units on a scaleStandard Deviation 1.35
Secondary

Neurologic Examination_ Deep Tendon Reflexes _ Biceps

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. REFLEX SCALE for Deep Tendon Reflexes (DTRs) The score ranges from 0 - 9, where 0 is no reflex response (areflexia)/always abnormal, greater than 1 and less than 3 is normal, and 9 is a tap that elicits a repeating reflex (clonus)/always abnormal.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ BicepsPre4.42 Units on a scaleStandard Deviation 0.51
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ BicepsMid3.28 Units on a scaleStandard Deviation 1.89
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ BicepsPost2.14 Units on a scaleStandard Deviation 1.61
Secondary

Neurologic Examination_ Deep Tendon Reflexes _ BR

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. REFLEX SCALE for Deep Tendon Reflexes (DTRs) The score ranges from 0 - 9, where 0 is no reflex response (areflexia)/always abnormal, greater than 1 and less than 3 is normal, and 9 is a tap that elicits a repeating reflex (clonus)/always abnormal.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ BRPre4.21 Units on a scaleStandard Deviation 0.57
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ BRMid3.28 Units on a scaleStandard Deviation 1.54
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ BRPost1.92 Units on a scaleStandard Deviation 1.32
Secondary

Neurologic Examination_ Deep Tendon Reflexes _ Patella

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. REFLEX SCALE for Deep Tendon Reflexes (DTRs) The score ranges from 0 - 9, where 0 is no reflex response (areflexia)/always abnormal, greater than 1 and less than 3 is normal, and 9 is a tap that elicits a repeating reflex (clonus)/always abnormal.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ PatellaPre4 units on a scaleStandard Deviation 0.67
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ PatellaMid3.28 units on a scaleStandard Deviation 1.13
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ PatellaPost2.71 units on a scaleStandard Deviation 1.63
Secondary

Neurologic Examination_ Deep Tendon Reflexes _ Triceps

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. REFLEX SCALE for Deep Tendon Reflexes (DTRs) The score ranges from 0 - 9, where 0 is no reflex response (areflexia)/always abnormal, greater than 1 and less than 3 is normal, and 9 is a tap that elicits a repeating reflex (clonus)/always abnormal.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ TricepsMid3.14 Units on a scaleStandard Deviation 1.74
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ TricepsPost2.57 Units on a scaleStandard Deviation 1.78
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Deep Tendon Reflexes _ TricepsPre4.14 Units on a scaleStandard Deviation 1.02
Secondary

Neurologic Examination_ Strength_ ADF

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. MRC scale for muscle strength (0-5) Grade 5: Normal Grade 4: Movement against gravity and resistance Grade 3: Movement against gravity over (almost) the full range Grade 2: Movement of the limb but not against gravity Grade 1: Visible contraction without movement of the limb (not existent for hip flexion) Grade 0: No visible contraction

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ ADFPre5 Units on a scaleStandard Deviation 0
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ ADFMid5 Units on a scaleStandard Deviation 0
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ ADFPost5 Units on a scaleStandard Deviation 0
Secondary

Neurologic Examination_ Strength_ Ev

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. MRC scale for muscle strength (0-5) Grade 5: Normal Grade 4: Movement against gravity and resistance Grade 3: Movement against gravity over (almost) the full range Grade 2: Movement of the limb but not against gravity Grade 1: Visible contraction without movement of the limb (not existent for hip flexion) Grade 0: No visible contraction

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ EvPost4.96 Units on a scaleStandard Deviation 0.09
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ EvPre5 Units on a scaleStandard Deviation 0
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ EvMid4.96 Units on a scaleStandard Deviation 0.09
Secondary

Neurologic Examination_ Strength_ Inv

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. MRC scale for muscle strength (0-5) Grade 5: Normal Grade 4: Movement against gravity and resistance Grade 3: Movement against gravity over (almost) the full range Grade 2: Movement of the limb but not against gravity Grade 1: Visible contraction without movement of the limb (not existent for hip flexion) Grade 0: No visible contraction

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ InvPre5 Units on a scaleStandard Deviation 0
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ InvMid4.96 Units on a scaleStandard Deviation 0.09
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ InvPost4.96 Units on a scaleStandard Deviation 0.09
Secondary

Neurologic Examination_ Strength_ Toe Fan

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. MRC scale for muscle strength (0-5) Grade 5: Normal Grade 4: Movement against gravity and resistance Grade 3: Movement against gravity over (almost) the full range Grade 2: Movement of the limb but not against gravity Grade 1: Visible contraction without movement of the limb (not existent for hip flexion) Grade 0: No visible contraction

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ Toe FanPre5 Units on a scaleStandard Deviation 0
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ Toe FanMid4.98 Units on a scaleStandard Deviation 0.06
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ Toe FanPost4.89 Units on a scaleStandard Deviation 0.27
Secondary

Neurologic Examination_ Strength_ Toe Flex

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. MRC scale for muscle strength (0-5) Grade 5: Normal Grade 4: Movement against gravity and resistance Grade 3: Movement against gravity over (almost) the full range Grade 2: Movement of the limb but not against gravity Grade 1: Visible contraction without movement of the limb (not existent for hip flexion) Grade 0: No visible contraction

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ Toe FlexPre5 Units on a scaleStandard Deviation 0
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ Toe FlexMid4.98 Units on a scaleStandard Deviation 0.06
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Strength_ Toe FlexPost4.89 Units on a scaleStandard Deviation 0.31
Secondary

Neurologic Examination_ Vibration Sense_DIP2

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. The position of the intersect is recorded on an arbitrary scale from 0 to 8 on a Rydel-Seiffer tuning fork once the subject is no longer perceiving vibration. The higher the number, the better the vibratory sense.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_DIP2Pre7.82 Units on a scaleStandard Deviation 0.46
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_DIP2Mid7.78 Units on a scaleStandard Deviation 0.57
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_DIP2Post7.53 Units on a scaleStandard Deviation 0.66
Secondary

Neurologic Examination_ Vibration Sense_DIP5

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. The position of the intersect is recorded on an arbitrary scale from 0 to 8 on a Rydel-Seiffer tuning fork once the subject is no longer perceiving vibration. The higher the number, the better the vibratory sense.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_DIP5Pre7.72 Units on a scaleStandard Deviation 0.61
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_DIP5Mid7.76 Units on a scaleStandard Deviation 0.57
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_DIP5Post7.60 Units on a scaleStandard Deviation 0.59
Secondary

Neurologic Examination_ Vibration Sense_Knee

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. The position of the intersect is recorded on an arbitrary scale from 0 to 8 on a Rydel-Seiffer tuning fork once the subject is no longer perceiving vibration. The higher the number, the better the vibratory sense.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_KneePre6.96 Units on a scaleStandard Deviation 0.86
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_KneeMid7 Units on a scaleStandard Deviation 0.98
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_KneePost6.10 Units on a scaleStandard Deviation 0.68
Secondary

Neurologic Examination_ Vibration Sense_MM

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. The position of the intersect is recorded on an arbitrary scale from 0 to 8 on a Rydel-Seiffer tuning fork once the subject is no longer perceiving vibration. The higher the number, the better the vibratory sense.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_MMMid6.44 Units on a scaleStandard Deviation 1.01
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_MMPost5.78 Units on a scaleStandard Deviation 1.2
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_MMPre6.73 Units on a scaleStandard Deviation 0.8
Secondary

Neurologic Examination_ Vibration Sense_Toe

Patients will be phenotyped by a neurologic examination before and after exposure to a standard regimen of neurotoxic chemotherapy. The position of the intersect is recorded on an arbitrary scale from 0 to 8 on a Rydel-Seiffer tuning fork once the subject is no longer perceiving vibration. The higher the number, the better the vibratory sense.

Time frame: Pre-chemotherapy (Baseline), Mid-chemotherapy (approximately 6 - 8 weeks from Baseline), Post-chemotherapy (approximately 2 - 3 weeks after the participant completed chemotherapy or approximately 14 - 18 weeks from Baseline)

ArmMeasureGroupValue (MEAN)Dispersion
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_ToePre6.71 Units on a scaleStandard Deviation 0.82
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_ToeMid4.66 Units on a scaleStandard Deviation 3.1
Relative % pO2 Change From Baseline While Breathing Room AirNeurologic Examination_ Vibration Sense_ToePost4.53 Units on a scaleStandard Deviation 2.09
Secondary

Serum NF-L Levels

Changes in serum NFL levels over the course of chemotherapy will be monitored to determine if NFL can be used as a biomarker for axonal damage in patients who develop CIPN. NFL will be measured at baseline, before each round of chemotherapy and at the completion of chemotherapy. Changes in NFL will be compared between patients who develop CIPN and those that do not.

Time frame: 1 year

Population: Samples were never gathered due to no participants enrolled after protocol was amended to include the collection of serum NF-L.

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