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Study identifier: NCT04153422 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

IVIG in the Treatment of Autoimmune Small Fiber Neuropathy With TS-HDS, FGFR-3, or Plexin D1 Antibodies

Condition: Small Fiber Neuropathy · Autoimmune Small Fiber Neuropathy · Inflammatory Polyneuropathy  ·  Sponsor: Endeavor Health

PhasePhase 2
Planned participants20
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This study will enroll patients with small fiber neuropathy (SFN). The study will look at an intravenous immunoglobulin (IVIG) called Panzyga. Panzyga is approved by the FDA as a therapy for Primary humoral immunodeficiency (PI) in patients 2 years of age and older; Chronic immune thrombocytopenia (ITP) in adults and Chronic inflammatory demyelinating polyneuropathy (CIDP) in adults. It has not been approved by the FDA for use in SFN. There is mounting evidence that Intravenous Immunoglobulin (IVIG) can cause pain reduction and improve objective nerve fiber densities on skin biopsies in great numbers in SFN patients. The primary outcome is quantified improvement in intraepidermal nerve fiber density (IENFD) on repeat skin punch biopsy after 6 months of IVIG treatment.

This description comes directly from the study's public registry record.

Talk to the study team

Anna Pham  ·  8475034344  ·  anna.pham@endeavorhealth.org

May Aunaetitrakul  ·  8475702570

Always discuss trial participation with your own doctor first.

Locations (1)

Endeavor HealthGlenview, Illinois, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT04153422