Dose Proportionality of ZUNVEYL a Galantamine Prodrug Over a Dosage Range of Five to Fifteen Milligrams Demonstrated Under Fasting Conditions
Bibliographic record
Abstract
BACKGROUND: ZUNVEYL (benzgalantamine, galantamine benzoate gluconate), is a pharmacologically inactive prodrug of galantamine. ZUNVEYL was FDA approved in 2024 for BID dosing for the treatment of mild to moderate Alzheimer's dementia, via the 505(b)(2) regulatory pathway, relying on FDA's previous finding of safety and efficacy for the listed drugs (LDs) Razadyne® (galantamine hydrobromide tablets), and Razadyne® ER (galantamine hydrobromide extended-release capsules). When dosed as a delayed-release (DR) tablet, ZUNVEYL bypasses the stomach and, is absorbed in the small intestine potentially reducing the gastrointestinal side effects common for acetylcholinesterase inhibitors. Consequently, ZUNVEYL may offer advantages over the other acetylcholinesterase inhibitors by reducing gastrointestinal adverse effects which limit patient compliance. Here we report the outcome of a study designed to assess the dose proportionality of ZUNVEYL DR tablets over a dosage range of 5-15 milligrams. METHODS: This was an open-label, balanced, randomized, three-arm, three-treatment, single-dose parallel study to evaluate the pharmacokinetics and dose proportionality of ZUNVEYL DR tablets of 5, 10 and 15 mg strength in healthy adult subjects (N=42), under fasting conditions. The study protocol underwent ethics review and was conducted under GCP conditions. RESULTS: The dose proportionality of ZUNVEYL based on the plasma analysis of galantamine derived from ZUNVEYL (Table 1), and the pharmacokinetic profiles of all three doses (Figure 1) are presented below. Fifteen milligrams of ZUNVEYL administered to drug naïve subjects, provoked one gastrointestinal adverse event (1/14), a lower incidence than that expected with an equivalent dose of Galantamine hydrobromide. CONCLUSIONS: ZUNVEYL was well-tolerated, no serious adverse events were observed. Statistical analysis confirmed the dose proportionality for Cmax, AUC0-t, & AUC0-∞ over the entire 5 mg to 15 mg dose range for ZUNVEYL. The studies demonstrating bioequivalence, under fed and fasted (abstract #107030), and steady state (abstract #107147) conditions, and dose proportionality studies, lead to the conclusion that one ZUNVEYL 5 mg DR tablet is equivalent to one galantamine hydrobromide 4 mg immediate release tablet.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".