Integrative Cancer Treatment: An Effective Approach Using Adjunctive High-Dose IVC

 In Bacterial/Viral Infections, Geriatrics, Oncology

Student Scholarship – Honorable Mention Case Study 

ASPEN PERCIVAL  
ALICIA BIGELOW, ND 

Lung cancer is the leading cause of cancer-related deaths in the United States.1 In the year 2010, approximately 200 000 Americans were diagnosed with lung cancer, resulting in 160 000 deaths.2 Risk factors include exposure to first- and second-hand tobacco smoke, arsenic in drinking water, naturally occurring radon gas in homes, environmental carcinogen exposures, and genetic predispositions.2 Familial and genetic variances have been identified that link non-smokers to increased likelihood of developing lung cancer. For example, epidermal growth factor receptor (EGFR) gene mutations are present in 20% of patients with adenocarcinoma.2 Patients with EGFR mutations are candidates for targeted molecular therapy to inhibit EGFR. 

Patients with lung cancer are often symptomatic at diagnosis.2 Symptoms caused by a primary tumor may include coughing, hemoptysis, Horner syndrome, and superior vena cava obstruction. Distant metastases may result in bone pain, paraneoplastic syndromes, and other non-specific patient complaints.2 Lung cancer is classified based on histological appearance of biopsied samples, falling into 1 of 2 categories: small cell lung cancer or non-small cell lung cancer (NSCLC).2 NSCLC is subcategorized into adenocarcinoma, squamous cell carcinoma, or large cell carcinoma.2 Adenocarcinomas are histologically heterogeneous peripheral masses that typically metastasize early and largely occur in patients with underlying lung disease.1 The following case study demonstrates the efficacy of osimertinib (a targeted chemotherapy agent) in combination with high-dose intravenous vitamin C (HDIVC) therapy in a patient with NSCLC, adenocarcinoma with stage IV metastasis to the brain. 

Case Study 

Presenting Concerns & Clinical Findings  

The patient was a 65-year-old female, never-smoker, with a positive EGFR gene mutation. The patient’s history was positive for coccidioidomycosis. This fact, in conjunction with her EGFR gene mutation, indicated a greater predisposition to developing lung cancer. Relevant family history included lung cancer (unspecified) and hypercholesterolemia in her father, and type 2 diabetes mellitus in her mother and brother.  

The patient initially presented with a fever (100 ˚F), moderate superior-middle mediastinal and right hilar lymphadenopathy, cough, globus pharyngeus, and unintentional weight loss. After positron emission tomography (PET) scan, magnetic resonance imaging (MRI), and transbronchial needle aspiration via bronchoscopy, the patient was diagnosed with NSCLC, adenocarcinoma with stage IV metastasis to the brain. The patient’s comorbidities at time of diagnosis include type 2 diabetes mellitus, hypercholesterolemia, atherosclerosis of aorta, heart murmur, osteoarthritis of the right knee, and acute deep vein thrombosis. 

Diagnostic Assessment 

On initial presentation in August 2018, a chest CT was ordered to work up presenting symptoms. Due to her history of coccidioidomycosis, a reoccurrence was suspected to be the cause of her symptoms, although cocci IgM was negative. A repeat CT was performed on 10/1/18 by the oncologist, which revealed a 1.8 cm nodule, moderate superior-middle mediastinal and right hilar lymphadenopathy, as well as scattered right and left lung solid pulmonary nodules measuring up to 0.5 cm, presumed to be reflective of sequelae of previously healed granulomatous disease, particularly given the left lower lobe basilar segment unchanged 1.4 cm granuloma. Bronchoscopy with transbronchial needle aspiration on 10/17/18 revealed 2/3 nodules malignant, adenocarcinoma of the lungs with lymphocytes. Brain MRI on 11/8/18, with and without contrast, revealed multiple nodules, the largest one measuring 9x8x10 mm; this was consistent with leptomeningeal metastases. PET scan on 11/14/18 revealed a right upper lobe hypermetabolic lesion, hypermetabolic thoracic and supraclavicular lymphadenopathy, and 1 small mildly FDG (fluorodeoxyglucose)-avid upper abdominal lymph node, indeterminate. The oncologist diagnosed the patient with NSCLC, adenocarcinoma, stage IV metastasis to the brain. 

Therapeutic Intervention  

On 11/29/18, the oncologist began treatment with 80 mg of osimertinib daily. Osimertinib is an oral, third-generation, irreversible epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TK1).3 Studies of patients with NCSLC and an EGFR mutation treated with osimertinib have demonstrated an 83% survival rate after 18 months of therapy.3 Adverse effects of osimertinib include anemia (43%), diarrhea (41%), rashe (34%), dry skin (23%), fatigue (22%), paronychia (22%), decreased appetite (18%), cough (17%), pruritus (14%), constipation (14%), vomiting (11%), headache (10%), upper respiratory infection (4%), prolonged QT interval (2.7%), alopecia, aspartate aminotransferase elevation, and alanine aminotransferase elevation.3,4 Fatal events have been recorded with osimertinib use, including pneumonia, respiratory tract infection, cerebral infarction, myocardial infarction, pulmonary embolism, and intestinal ischemia.3 Although this is a targeted drug associated with relatively high survival rates, its use results in adverse effects and is not applicable to all forms of lung cancer or appropriate individualized patient care. The side-effect profile of chemotherapy/radiation drugs and their associated moderate cure rates warrant the use of adjunct therapeutic tools to increase treatment efficacy and improve patient outcomes and quality of life during and post-treatment.   

High-dose intravenous vitamin C is widely used in integrative cancer treatment to delay or arrest cancer progression and to mitigate chemotherapy/radiation effects, and is supported by a large and fairly consistent body of cellular evidence.5 Studies have consistently demonstrated increased therapeutic efficacy of HDIVC in conjunction with standard-of-care radiation and chemotherapy when compared to standard-of-care treatments alone.6,7 Biological evidence demonstrates how high tissue concentrations of vitamin C (and other antioxidants) can reduce the toxicity of chemotherapy while increasing its efficacy.5   

HDIVC has been found to induce a selective cytotoxic effect on cancer cells via H2O2-mediated mechanisms and enhance cytotoxic effects of standard-of-care chemotherapy treatments in NSCLC, pancreatic cancer, ovarian cancer, glioblastoma multiforme, gastric cancer, colon cancer, and sarcoma.6 Clinical trials with the aforementioned forms of cancer have demonstrated safety, tolerability, and increased tumor cell death or tumor growth inhibition with HDIVC treatment, as well as its potential as an anti-cancer agent in conjunction with standard-of-care therapies.6 HDIVC bypasses intestinal transporters responsible for limited absorption of oral administration, resulting in peak plasma levels up to 200-fold higher than oral supplementation is able to achieve.6  

HDIVC acts as a prodrug to deliver extracellular H2O2 to tissues. At physiological pH, vitamin C can undergo auto-oxidation to generate H2O2 through superoxide radical intermediate.68 As stated by Schoenfeld et al, “H2O2 at high steady-state levels is toxic to cells because it can readily cross cell membranes via peroxiporins and react with redox-active metals [such as iron] to produce highly oxidizing hydroxyl radical (HO˙) causing oxidative damage to cellular lipids, proteins and most importantly to DNA.”6 High concentrations of vitamin C are toxic to a variety of cancer cells, due to H2O2 production, while at the same time being relatively harmless and often beneficial to healthy cells.6 Cancer cells have a decreased capacity to clear H2O2, and dysfunctions in iron metabolism cause increased levels of labile iron.6,8 This facilitates the selective sensitization of cancer to chemotherapy, but also offers a platform for vitamin C to act as a local pro-oxidant on tumor cells and as a systemic antioxidant on normal tissues.6,8 There is increasing evidence that vitamin C may provide benefits beyond tumor cytotoxicity by ameliorating the tissue injury and oxidative stress that normally occurs secondarily to chemotherapy and radiation.6 Normal tissues produce undetectable levels of H2O2 due to well-regulated iron metabolism and efficient metabolic pathways for clearing H2O2; these abilities are absent in cancer cells.6  

Before HDIVC treatment is initiated, preliminary testing is done to determine metabolic safety. Complete blood count, reticulocyte count, comprehensive metabolic panel, and G6PD were tested in the patient. A screening physical exam was completed, imaging was reviewed, and the patient was cleared for HDIVC therapy. The calculation to determine optimal blood levels of ascorbate was made using a finger-stick glucometer, since vitamin C is mistaken for glucose by glucometer readings for several hours after IV administration. The optimal range to achieve oxidative therapy is between 350-400 mg/dL.9 A baseline value is obtained pre-HDIVC, and a post-HDIVC value is obtained 15 minutes post-IV.9 The pre-IV reading is subtracted from the post-IV reading to determine mg/dL of plasma vitamin C.9 The patient was started on 25 g IVC on 1/22/19, around 2 months after she had been on osimertinib treatment; she was titrated over 17 days to reach her therapeutic dose of 60 g. (Intravenous formulas used for this patient can be found in Table 1.) 

Follow-ups & Outcome 

After 2 HDIVC treatments and approximately 3 months of continuous osimertinib, MRI and PET scans were repeated (2/5/19-2/6/19). The PET scan revealed decreased size and FDG avidity of the right upper lobe pulmonary nodule, as well as a non-FDG-avid 7 mm nodular opacity in the superior segment of the right lower lobe that was previously a 5 mm pulmonary nodule. Other subcentimeter pulmonary nodules appeared less conspicuous. Interval resolution was noted of previously observed hypermetabolic bilateral supraclavicular and left cervical lymph nodes. Also apparent were near-complete resolution of previously seen FDG-avid mediastinal adenopathy and resolution of a previously seen FDG-avid gastro-hepatic lymph node. The MRI revealed dramatic improvement and positive interval response to therapy of prior posterior fossa and supratentorial intracranial metastatic disease. The majority of prior intracranial metastases had resolved. A single residual left frontal metastasis had dramatically decreased in size, now measuring 4.3 mm.  

After a total of 14 HDIVC treatments, 7 multi-nutrient IV treatments, and approximately 7 months of osimertinib, the MRI and PET scans were repeated (5/22/19-5/24/19). The MRI revealed a single enhancing lesion in the left frontal lobe, which measured 2.7 mm (decreased from 4.3 mm on 2/6/19). No other definite intracranial lesions were identified. The PET scan revealed no residual FDG-avid disease.  

After a total of 21 HDIVC treatments, 9 multi-nutrient IV treatments, and 10 months of osimertinib, the PET scan and MRI were again repeated (8/24/19). The imaging revealed the same results as 5/22/19 and 5/24/19 imaging, ie, a single, stable enhancing lesion in the left frontal lobe that measured 2.7 mm on MRI; no residual FDG-avid disease was found on PET scan. 

The most recent PET scan, performed on 12/9/19, confirmed no FDG-avid recurrent or metastatic disease. The residual right upper lobe pulmonary nodule was not substantially changed in size, and continued to demonstrate low-level FDG uptake.  

Discussion 

This case study demonstrates a safe and effective integrative treatment of NSCLC with metastasis to the brain. When considering effective approaches to cancer therapy, this case provides a detailed justification for using HDIVC in combination with the appropriate chemotherapy agent. The first repeated imaging documented the progress of osimertinib with only 2 HDIVC treatments and revealed improvement in brain tumors on MRI, but a progression in thoracic PET scan tumors. Although improvements were made, the repeated imaging after continuous HDIVC therapy revealed significant improvements, including the most recent PET scans indicating no residual disease in the thoracic region and a single stable tumor in the brain, as seen on MRI. Given her EGFR mutation, the patient was a prime candidate for an exceptionally targeted approach by treating with osimertinib and enhancing results with HDIVC. 

Preliminary clinical data suggest beneficial clinical outcomes with vitamin C administration that are superior to chemo-radiation alone.6 Preclinical studies and clinical trials have consistently demonstrated HDIVC as safe and well tolerated in combination with chemotherapy/radiation in patients with cancer.5,6,10 In one study analyzing the effects of HDIVC therapy in multiple types of cancer, patients experienced transient stable disease, increased energy, functional improvement, and no change in urinary oxalic acid excretion.5 Chemotherapy and systemic inflammation cause depletion of antioxidants, including lower plasma vitamin C concentrations.5 Research examining patients with cancer being treated with chemotherapy, radiation, or surgical removal, and adjunct HDIVC (15-50 g), demonstrated statistically significant decreases in inflammatory cytokines (IL-1α, IFN-γ, and IL- 8, IL-2, TNF-α, and eotaxin), C-reactive protein (CRP), and tumor markers after treatment with HDIVC.6,10 CRP levels decreased by 50%, indicating a marked reduction in inflammation.10  

The side effects of current chemo-radiation agents are generally poorly tolerated; thus, further research into therapies that can decrease side effects, reduce chemo-radiation dosages, and improve patients’ quality of life is warranted. Studies show a significant decrease in nausea, anorexia, fatigue, depression, sleep disorders, alopecia, and bleeding diathesis in women receiving a minimal dose of 7.5 g of ascorbate IV weekly in conjunction with chemo-radiation.6 HDIVC has been determined to be safe and nontoxic, with few adverse effects. Common yet minor adverse effects of HDIVC include increased thirst and increased urinary flow during IV infusions.5 Less common side effects include nausea, vomiting, fluttering, and rumbling sensation in the upper abdomen, a mentally hazy feeling 1 day post-treatment, chills, headache, and increased lower extremity edema for a few days post-infusion.5  

The patient had only reported minimal side effects from the osimertinib, including intermittent mild pruritus, mild nausea, and fatigue. She reported that the fatigue was less prominent once she started receiving HDIVC. The chief complaint of mild pruritus remained. 

This case report provides evidence that HDIVC therapy in combination with appropriately targeted chemotherapy can act as a safe, effective, and justified approach to integrative cancer treatment. More research is warranted to explore implementing widespread use of HDIVC in future cancer treatment regimens. 

Table 1. Timeline   

Date Relevant Past Medical History, Imaging, & Interventions 
2005 History of coccidioidomycosis 
8/10/18 First presentation of lymphadenopathy (LAD), cough, globus pharyngeus, fever, and unintentional weight loss 
8/20/18 Chest CT: Right upper left pulmonary nodule and mild LAD. Oncologist clinical decision: consistent with coccidioidomycosis reoccurrence. Cocci IgM negative. Recommended repeat CT in 6 weeks.  
10/1/18 Oncologist CT report: Possible mild interval enlargement of right upper lobe spiculated pulmonary nodule measuring up to 1.8 cm, raising concern of possible primary lung neoplasm. Moderate superior-middle mediastinal and right hilar lymphadenopathy. Recommended follow-up PET/CT. Unchanged scattered right and left lung solid pulmonary nodules measuring up to 0.5 cm, likely reflecting sequelae of old, healed granulomatous disease, particularly given the unchanged left lower lobe basilar segment 1.4 cm granuloma. 
10/11/18 Tumor board meeting addendum: Nodule growing, LAD stable; warrants invasive work-up to rule out malignancy 
10/17/18 Bronchoscopy with transbronchial needle aspiration diagnosis: 2/3 of nodules malignant; adenocarcinoma of the lung; lymphocytes present 
11/08/18 MRI with and without (w/w/o) contrast: Enhancing nodule in posterior right frontal sulcus, the largest measuring 9x8x10 mm. Multiple tiny enhancing nodules noted along the surface of the brain, consistent with leptomeningeal metastases.  
11/14/18 PET scan (skull base to midthigh): Hypermetabolic right upper lobe lesion. Hypermetabolic thoracic and supraclavicular lymphadenopathy. Small mildly fluorodeoxyglucose (FDG)-avid upper abdominal lymph node, indeterminate. Intracranial lesions better evaluated by MRI. 
11/29/18 Oncologist consult & plan for treating stage 4 adenocarcinoma of lung, EGFR mutationpositive: Osimertinib, 80 mg daily  
1/14/19 Oncologist: Continue osimertinib, 80 mg daily  
1/14/19 First IV therapy consult with naturopathic physician: Patient intake, preliminary lab testing, screening physical exam (PE). IV therapy to commence next visit (if lab & PE show no remarkable findings): 25 g vitamin C, titrated up to therapeutic level, with 1-2 treatments per week  
1/22/19 HDIVC Treatment (TX) #1: 25 g vitamin C, 100 mg calcium chloride, 400 mg magnesium chloride, 78 mg potassium, 500 mL 0.45% saline, Capillary Blood Glucose (CBG) pre-and-post IV. Saline (0.45%) used due to shortage of sterile water bags. 
1/29/19 IV TX #2: 50 g vitamin C, 300 mg calcium chloride, 1000 mg magnesium chloride, 312 mg potassium, 500 mL 0.45% saline, CBG pre- and post-IV 
2/5/19 PET scan (skull base to mid-thigh): Decreased size and FDG avidity of the right upper lobe pulmonary nodule. A non-FDG-avid 7 mm nodular opacity in the superior segment of the right lower lobe, possibly representing post-treatment change involving a previously seen 5 mm pulmonary nodule in this region. Other subcentimeter pulmonary nodules less conspicuous. Interval resolution of previously seen hypermetabolic bilateral level IV/supraclavicular and left level VB cervical lymph nodes. Near-complete resolution of previously seen FDG-avid mediastinal adenopathy. Resolution of previously seen FDG-avid gastro-hepatic lymph node. 
2/6/19 MRI (w/w/o) contrast: Dramatic improvement, positive response to therapy of prior posterior fossa and supratentorial intracranial metastatic disease. Majority of prior intracranial metastases resolved. Single residual left frontal metastasis dramatically decreased in size, now measuring 4.3 mm. No intracranial mass, and no acute stroke or hemorrhage noted. 
2/8/19 IV TX #3: 60 g vitamin C, 400 mg calcium chloride, 1200 mg magnesium chloride, 390 mg potassium, 500 mL sterile water, CBG pre- and post-IV (therapeutic dose reached) 
2/12/19 IV TX #4: (HDIVC formula TX #3) 
2/19/19 IV TX #5: (HDIVC formula TX #3) 
2/26/19 IV TX #6: (HDIVC formula TX #3) 
3/5/19 IV TX #7: (HDIVC formula TX #3) 
3/29/19 IV TX #8: IV multi-nutrient drip added to treatment plan, (alternating with 60 g vitamin C,) 500 mg dexpanthenol, 100 mg pyridoxine, 1000 µg hydroxycobalamin, 1000 µg methylcobalamin, 3 mg B-complex (thiamine 300 mg, riboflavin-5-phosphate 6 mg, pyridoxine 6 mg, dexpanthenol 6 mg, niacinamide 300 mg), 400 mg calcium chloride, 1200 mg magnesium chloride, 25 µg molybdenum, 200 µg selenium, 15 mg zinc sulfate, 500 mg carnitine, 100 mg taurine, 2 mg multi-trace elements, 390 mg potassium, 3 mL of 8.4% sodium bicarbonate, 250 mL sterile water 
4/2/19 IV TX #9: (HDIVC formula TX #3) 
2/9/19 IV TX #10: (HDIVC formula TX #3) 
4/12/19 IV TX #11: 5 g vitamin C, 500 mg dexpanthenol, 100 mg pyridoxine, 1000 µg hydroxycobalamin, 1000 µg methylcobalamin, 3 mg B-complex (thiamine 300 mg, riboflavin-5-phosphate 6 mg, pyridoxine 6 mg, dexpanthenol 6 mg, niacinamide 300 mg), 400 mg calcium chloride, 1200 mg magnesium chloride, 25 µg molybdenum, 200 µg selenium, 15 mg zinc sulfate, 100 mg taurine, 780 mg potassium, 3 mL of 8.4% sodium bicarbonate, 250 mL sterile water and separate IV push of 1000 mg glutathione in sterile water 
4/16/19 IV TX #12: (HDIVC formula TX #3) 
4/19/19 IV TX #13: (Multi-nutrient drip + 1000 mg glutathione) 
4/23/19 IV TX #14: (HDIVC formula TX #3) 
4/26/19 IV TX #15: (Multi-nutrient drip + 1000 mg glutathione) 
4/30/19 IV TX #16: (HDIVC formula TX #3) 
5/3/19 IV TX #17: (Multi-nutrient drip + 1000 mg glutathione) 
5/7/19 IV TX #18: (HDIVC formula TX #3) 
5/10/19 IV TX #19: 5 g vitamin C, 500 mg dexpanthenol, 100 mg pyridoxine, 1000 µg hydroxycobalamin, 1000 µg methylcobalamin, 3 mg B-complex (thiamine 300 mg, riboflavin-5-phosphate 6 mg, pyridoxine 6 mg, dexpanthenol 6 mg, niacinamide 300 mg), 400 mg calcium chloride, 1200 mg magnesium chloride, 25 µg molybdenum, 200 µg selenium, 15 mg zinc sulfate, 500 mg carnitine, 100 mg taurine, 2 mg multi-trace elements, 390 mg potassium, 3 mL of 8.4% sodium bicarbonate, 250 mL sterile water 
5/14/19 IV TX #20: (HDIVC formula TX #3) 
5/17/19 IV TX #21: (Multi-nutrient drip-TX #19) 
5/22/19 MRI (w/w/o) contrast: A single tiny enhancing lesion was stable and smaller than on 2/6/19. No other definite intracranial lesions identified. 
5/24/19 PET scan (skull base to mid-thigh): No residual FDG-avid disease. No suspicious hypermetabolic activity within the head. Intracranial lesions would be better evaluated by MRI. No suspicious hypermetabolic activity within the neck. No recurrent hypermetabolic lymphadenopathy. No suspicious hypermetabolic activity within the chest. Residual right upper lobe lesion stable in size and not significantly hypermetabolic. Groundglass lesion in the right lower lobe found stable or slightly increased in size, but still not significantly hypermetabolic and possibly inflammatory. Stable non-FDG-avid left basilar probable atelectasis. Hypermetabolic thoracic lymph nodes resolved. No suspicious hypermetabolic activity within abdomen and pelvis. No recurrent hypermetabolic abdominal lymph nodes. Atherosclerotic calcifications present. 
5/31/19 IV TX #22: (Multi-nutrient drip-TX #19) 
6/14/19 IV TX #23: (HDIVC formula TX #3) 
6/21/19 IV TX #24: (HDIVC formula TX #3) 
7/9/19 IV TX #25: (HDIVC formula TX #3) 
7/19/19 IV TX #26: (Multi-nutrient drip- TX #19) 
7/23/19 IV TX #27: (HDIVC formula TX #3) 
8/6/19 IV TX #28: (HDIVC formula TX #3) 
8/16/19 IV TX #29: IV multi-nutrient push with 1 g vitamin C, 250 mg dexpanthenol, 100 mg pyridoxine, 1000 µg hydroxycobalamin, 1000 µg methylcobalamin, 1 mg B-complex (thiamine 100 mg, riboflavin-5-phosphate 2 mg, pyridoxine 3 mg, dexpanthenol 2 mg, niacinamide 100 mg), 100 mg calcium chloride, 1200 mg magnesium chloride, 200 µg selenium, 2 mL of 8.4% sodium bicarbonate, 47 mL sterile water, and separate IV push of 1000 mg glutathione in 5 mL sterile water  
8/20/19 IV TX #30: (HDIVC formula TX #3) 
8/24/19 PET scan: No residual FDG-avid disease. Same results as on 5/24/19. MRI (w/w/o) contrast: A single tiny enhancing lesion stable. A 2.7 mm focus of enhancement within the high left frontal lobe noted. Same results as on 5/22/19. 
12/9/19 PET scan: No evidence of FDG-avid recurrent or metastatic disease. The residual right upper lobe pulmonary nodule not substantially changed in size and still demonstrating low-level FDG uptake, likely representing treated disease. Continued attention to this region on follow-up imaging recommended. Previously seen surrounding groundglass opacity resolved. Known posterior left frontal solitary enhancing lesion better evaluated on MRI.  

References: 

  1. Collins LG, Haines C, Perkel R, Enck RE. Lung Cancer: Diagnosis and Management. Am Fam Physician. 2007;75(1):56-63. 
  2. Latimer KM, Mott TF. Lung Cancer: Diagnosis, Treatment Principles, and Screening. Am Fam Physician. 2015;91(4):250-256. 
  3. Soria JC, Ohe Y, Vansteenkiste J, et al. Osimertinib in Untreated EGFR -Mutated Advanced Non–Small-Cell Lung Cancer. N Engl J Med. 2018;378(2):113-125.  
  4. Medscape. Osimertinib (Rx). May 13, 2020. Available at: https://reference.medscape.com/drug/Tagrisso-osimertinib-1000062#4. Accessed May 26, 2020.  
  5. Hoffer LJ, Robitaille L, Zakarian R, et al. High-dose intravenous vitamin C combined with cytotoxic chemotherapy in patients with advanced cancer: a phase I-II clinical trial. Plos One. 2015;10(4):e0120228.  
  6. Schoenfeld JD, Alexander MS, Waldron TJ, et al. Pharmacological Ascorbate as a Means of Sensitizing Cancer Cells to Radio-Chemotherapy While Protecting Normal Tissue. Semin Radiat Oncol. 2019;29(1):25-32.  
  7. Mastrangelo D, Pelosi E, Castelli G, et al. Mechanisms of anti-cancer effects of ascorbate: Cytotoxic activity and epigenetic modulation. Blood Cells Mol Dis. 2018;69:57-64. 
  8. Valachová K, Juránek I, Rapta P, et al. On infusion of high-dose ascorbate in treating cancer: Is it time for N-acetylcysteine pretreatment to enhance susceptibility and to lower side effects? Med Hypotheses. 2019;122:8-9.  
  9. Ma Y, Sullivan GG, Schrick E, et al. A Convenient Method for Measuring Blood Ascorbate Concentrations in Patients Receiving High-Dose Intravenous Ascorbate. J Am Coll Nutr. 2013;32(3):187-193.  
  10. Mikirova N, Casciari J, Rogers A, Taylor P. Effect of high-dose intravenous vitamin C on inflammation in cancer patients. J Transl Med. 2012;10:189.  

Aspen Percival is a naturopathic medical student who graduated from NUNM in June 2020. Aspen is a board member of the Naturopathic Medical Student Association. She attained a bachelor of science in biology from the University of British Columbia. As a 2nd generation ND in the making, she grew up with a unique outlook on the approach to health and dis-ease states. She believes in empowering individuals to take responsibility for their own health care, building strong doctor-client partnerships, and implementing Docere. Aspen focuses on building a strong physical, mental-emotional, and biochemical foundation to promote health and vitality with her clients. 

Alicia Bigelow, ND’s focus on prevention serves as the foundation for her interest in environmental medicine and preconception cleansing. She completed Dr Walter Crinnion’s Environmental Medicine for Health Care Professionals program and is certified in IV and heavy metal chelation therapy. Dr Bigelow attained an undergraduate degree in geography from the University of Colorado and earned her Doctor of Naturopathic Medicine degree from NCNM (now NUNM) in 2004. She completed a 2-year residency at NUNM and is the supervising physician of the Environmental Medicine/IV therapy rotation at the NUNM Lair Hill Clinic. Dr Bigelow is also the proprietor of Vital Vinegars, an herbally-infused vinegar company. 

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