Study to Examine the Effects of Oral Fenretinide

ISLA101 is an oral gelatin capsule containing 100 mg of fenretinide (N-\[4-Hydroxyphenyl\]retinamide, mw 391.56) dissolved in corn oil and polysorbate 80. ISLA101 capsules will be administered orally as one dose of 300 mg/m2 each 12 hours (q12 +/-1 h).

The DENV-1-LVHC investigational challenge material consists of the dengue-1 virus strain 45AZ5 as a powder, lyophilized for reconstitution. The product is reconstituted with 0.7 mL of water for injection (WFI) and diluted to a concentration of 6.5 x 103 PFU/mL.

Placebo capsules will be administered orally as one dose of 300 mg/m2 each 12 hours (q12 +/-1 h).