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Tysabri® (natalizumab) is a monoclonal antibody approved for the treatment of relapsing forms of multiple sclerosis (RMS) in adults. It belongs to a class of therapies known as selective adhesion molecule inhibitors and is designed to block immune cells from crossing into the brain and spinal cord, where they can cause inflammation and damage.
Tysabri® offers a highly effective treatment option for patients with MS, helping to significantly reduce relapse rates, slow disease progression, and limit the development of new brain lesions.
In multiple sclerosis (MS), the immune system mistakenly attacks the myelin sheath — the protective covering around nerves that supports proper communication within the brain and body.
One way harmful immune cells reach the central nervous system is by crossing the blood-brain barrier — a protective layer that normally keeps the brain and spinal cord safe.
Tysabri® works by blocking certain molecules (specifically, alpha-4 integrins) that immune cells use to pass through the blood-brain barrier. By preventing these immune cells from entering the central nervous system, Tysabri reduces inflammation, protects the myelin sheath, and helps maintain nerve function.
While Tysabri is not a cure for MS, it helps stabilize disease activity, reduce relapses, and protect against further neurological damage.
Tysabri® cost can vary depending on several factors including insurance status and insurance provider. Our team at Advanced Neurology of Colorado are committed to lowering costs and improving access for our patients.
We work with virtually all leading commercial insurance providers in Northern Colorado as well as Medicaid and Medicare.
We’re here to make treatment more affordable and less stressful. Our team takes care of prior authorizations and benefits verification for you, and we’ll personally guide you through copay assistance and foundation support programs to help lower your out-of-pocket costs.
Our infusion center is proud to have a board-certified neurologist on-site, along with a team of BSN-prepared and Registered Nurses that specialize in infusion care for neurological conditions, all committed to delivering the highest standard of care for our patients.
We handle prior-authorization, benefits verification, and guide patients through copay assistance and foundation programs to reduce out-of-pocket costs. Additional financial help may be available if you qualify — just ask, and we’ll help you explore every option.
A Cigna report recently found that with a physician-owned infusion site, like Advanced Neurology of Colorado's Infusion Center, patients see much lower out-of-pocket and overall costs than they would at a hospital outpatient infusion center.
20+ years in Colorado, serving thousands of individuals with MS and other neurological disorders.
Crohn’s Disease
Multiple Sclerosis
Primary Progressive Multiple Sclerosis
Multiple Sclerosis (MS): Approved on November 23, 2004
Crohn’s Disease: Approved on January 14, 2008
Biogen
"The MA Jess noticed I was anxious and brought me a weighted blanket. Above and beyond!"
"The only neurology clinic I’ve been to where you don’t feel like just a number."
"ALS guardian - Coordinates with my pulmonologist, PT, and speech therapist in one shared portal. Her ALS Functional Rating Scale checks keep us proactive."
“Amazing. I have been with other Doctors at this practice as well but I had an amazing experience with Dr. Lackey specifically. Very attentive and friendly to work with! Highly recommend!”
"MG crisis hero - Got me into the hospital for IVIG within 4 hours during a bulbar crisis. Her fellow (Dr. Patel) even checked on me at midnight."
"Easy parking, wheelchair-friendly, and a coffee bar in the waiting area."
"ANC’s telehealth option saved me a 2-hour drive. Seamless tech setup!"
“Dr. Yang is nothing but amazing! She has helped me so much with a diagnosis that moved my world upside down. She treats my almost daily migraines as well. She and her team will do what they can to get me the medication I need! She is very compassionate and kind!”
"Migraine magician - Botox + Nurtec combo cut my headache days from 25/month to 4. His headache diary app makes tracking effortless."
"No-nonsense - Wish visits were longer, but his neuropathy staging system helped us prioritize treatments."
"Billing is transparent—no surprise charges like at my last neuro."
"Brutally honest - Wish she'd sugarcoat less, but her MG treatment plan stopped my hospitalizations. Clinical trials access is a plus."
"ANC runs like a well-oiled machine. Appointments start on time, and the staff remembers me every visit."
"Spotless floors, sanitizer everywhere, and masks required. Felt very safe."
“Dr. Dasari has been a God-send for my MS. He is incredibly knowledgeable and makes me feel heard. He allocates his time for me as a patient and I know I couldn’t manage this disease without him!”
"Modern, clean, and calming—especially the infusion center with mountain views."
“Amazing. I have been with other Doctors at this practice as well but I had an amazing experience with Dr. Lackey specifically. Very attentive and friendly to work with! Highly recommend!”
"No-nonsense - Wish visits were longer, but his neuropathy staging system helped us prioritize treatments."
"Migraine magician - Botox + Nurtec combo cut my headache days from 25/month to 4. His headache diary app makes tracking effortless."
“Dr. Dasari has been a God-send for my MS. He is incredibly knowledgeable and makes me feel heard. He allocates his time for me as a patient and I know I couldn’t manage this disease without him!”
"Brutally honest - Wish she'd sugarcoat less, but her MG treatment plan stopped my hospitalizations. Clinical trials access is a plus."
"MG crisis hero - Got me into the hospital for IVIG within 4 hours during a bulbar crisis. Her fellow (Dr. Patel) even checked on me at midnight."
"ALS guardian - Coordinates with my pulmonologist, PT, and speech therapist in one shared portal. Her ALS Functional Rating Scale checks keep us proactive."
“Dr. Yang is nothing but amazing! She has helped me so much with a diagnosis that moved my world upside down. She treats my almost daily migraines as well. She and her team will do what they can to get me the medication I need! She is very compassionate and kind!”
"Spotless floors, sanitizer everywhere, and masks required. Felt very safe."
"Easy parking, wheelchair-friendly, and a coffee bar in the waiting area."
"Modern, clean, and calming—especially the infusion center with mountain views."
"The MA Jess noticed I was anxious and brought me a weighted blanket. Above and beyond!"
"Billing is transparent—no surprise charges like at my last neuro."
"ANC’s telehealth option saved me a 2-hour drive. Seamless tech setup!"
"The only neurology clinic I’ve been to where you don’t feel like just a number."
"ANC runs like a well-oiled machine. Appointments start on time, and the staff remembers me every visit."
“Amazing. I have been with other Doctors at this practice as well but I had an amazing experience with Dr. Lackey specifically. Very attentive and friendly to work with! Highly recommend!”
"No-nonsense - Wish visits were longer, but his neuropathy staging system helped us prioritize treatments."
"Migraine magician - Botox + Nurtec combo cut my headache days from 25/month to 4. His headache diary app makes tracking effortless."
“Dr. Dasari has been a God-send for my MS. He is incredibly knowledgeable and makes me feel heard. He allocates his time for me as a patient and I know I couldn’t manage this disease without him!”
"Brutally honest - Wish she'd sugarcoat less, but her MG treatment plan stopped my hospitalizations. Clinical trials access is a plus."
"MG crisis hero - Got me into the hospital for IVIG within 4 hours during a bulbar crisis. Her fellow (Dr. Patel) even checked on me at midnight."
"ALS guardian - Coordinates with my pulmonologist, PT, and speech therapist in one shared portal. Her ALS Functional Rating Scale checks keep us proactive."
“Dr. Yang is nothing but amazing! She has helped me so much with a diagnosis that moved my world upside down. She treats my almost daily migraines as well. She and her team will do what they can to get me the medication I need! She is very compassionate and kind!”
"Spotless floors, sanitizer everywhere, and masks required. Felt very safe."
"Easy parking, wheelchair-friendly, and a coffee bar in the waiting area."
"Modern, clean, and calming—especially the infusion center with mountain views."
"The MA Jess noticed I was anxious and brought me a weighted blanket. Above and beyond!"
"Billing is transparent—no surprise charges like at my last neuro."
"ANC’s telehealth option saved me a 2-hour drive. Seamless tech setup!"
"The only neurology clinic I’ve been to where you don’t feel like just a number."
"ANC runs like a well-oiled machine. Appointments start on time, and the staff remembers me every visit."
“Amazing. I have been with other Doctors at this practice as well but I had an amazing experience with Dr. Lackey specifically. Very attentive and friendly to work with! Highly recommend!”
"No-nonsense - Wish visits were longer, but his neuropathy staging system helped us prioritize treatments."
"Migraine magician - Botox + Nurtec combo cut my headache days from 25/month to 4. His headache diary app makes tracking effortless."
“Dr. Dasari has been a God-send for my MS. He is incredibly knowledgeable and makes me feel heard. He allocates his time for me as a patient and I know I couldn’t manage this disease without him!”
"Brutally honest - Wish she'd sugarcoat less, but her MG treatment plan stopped my hospitalizations. Clinical trials access is a plus."
"MG crisis hero - Got me into the hospital for IVIG within 4 hours during a bulbar crisis. Her fellow (Dr. Patel) even checked on me at midnight."
"ALS guardian - Coordinates with my pulmonologist, PT, and speech therapist in one shared portal. Her ALS Functional Rating Scale checks keep us proactive."
“Dr. Yang is nothing but amazing! She has helped me so much with a diagnosis that moved my world upside down. She treats my almost daily migraines as well. She and her team will do what they can to get me the medication I need! She is very compassionate and kind!”
"Spotless floors, sanitizer everywhere, and masks required. Felt very safe."
"Easy parking, wheelchair-friendly, and a coffee bar in the waiting area."
"Modern, clean, and calming—especially the infusion center with mountain views."
"The MA Jess noticed I was anxious and brought me a weighted blanket. Above and beyond!"
"Billing is transparent—no surprise charges like at my last neuro."
"ANC’s telehealth option saved me a 2-hour drive. Seamless tech setup!"
"The only neurology clinic I’ve been to where you don’t feel like just a number."
"ANC runs like a well-oiled machine. Appointments start on time, and the staff remembers me every visit."
