Background: This specialty guideline management document governs use of somatropin products and describes the scope of specialty guideline management for growth hormone therapy, covering FDA-approved and compendial indications when approval criteria are met.
Diagnostic testing referenced: Prior authorization requires pretreatment pharmacologic provocative GH tests (e.g., insulin tolerance test, Macrilen, glucagon stimulation) with specified peak GH cutoffs and pretreatment/current IGF-1 levels with laboratory-specific reference ranges provided to interpret SD from the mean.
Genetic confirmation: For syndromic indications the policy requires confirmatory testing where applicable (e.g., diagnostic karyotype for Turner syndrome, molecular/genetic testing for Prader‑Willi and SHOX deficiency) as part of documentation to support authorization.
Clinical measures: The criteria use anthropometric and growth measures including pretreatment height and growth velocity thresholds (>2 SD below mean for many pediatric indications, 1-year height velocity thresholds) and requirement that epiphyses are open for most pediatric approvals (confirmation by X‑ray or allowance if X‑ray not available).
Compendial uses: Compendial indications (e.g., HIV-associated wasting/cachexia and short bowel syndrome) are included but have time-limited or specified conditions — HIV-associated wasting initial approval criteria and a 12-week authorization; short bowel syndrome may receive a lifetime total of 8 weeks when dependent on parenteral nutrition and used with optimal SBS management.