Public record

ibutamoren (MK-677): the public record

3 tables from US federal sources. Latest data date: Nov 11, 2026.

Each table is computed from the named federal dataset as of its data date; the method is under each one.

Product listings

FDA product listings naming ibutamoren (MK-677)

The FDA NDC Directory holds 5 listings naming ibutamoren (MK-677) from 4 firms: 5 bulk ingredient listings and 0 finished product listings, 0 under an FDA-approved application. A listing is a registration by a firm, not an FDA approval.

FDA product listings naming ibutamoren (MK-677): the figures
MeasureValueNote
Listings naming ibutamoren (MK-677)5
Bulk ingredient listings5raw material registrations, not finished medicines
Of those, bulk ingredient for human prescription compounding3
Finished product listings0
Listings under an FDA-approved application0
Firms with a listing4

Source: FDA, National Drug Code Directory via openFDA, data as of Nov 11, 2026

How this was calculated

Searched ingredient and product names in the NDC Directory download for the exact name variants, then counted listings by FDA marketing category and by listing firm.

Scope: Current NDC Directory listings whose ingredient or product name contains ibutamoren or MK-677 or MK 677

Firms submit listings themselves. A listing does not mean FDA has reviewed the substance for safety or effectiveness, or that it may lawfully be compounded.

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Clinical studies

Registered clinical studies of ibutamoren (MK-677)

ClinicalTrials.gov lists 8 registered studies that name ibutamoren (MK-677) as an intervention as of 2026-11-11. Of these, 1 are recruiting, 5 are completed and 1 are phase 3 studies.

Registered clinical studies of ibutamoren (MK-677): the figures
MeasureValue
Registered studies8
Recruiting now1
Not yet recruiting0
Completed5
Terminated, withdrawn or suspended2
Phase 3 (including phase 2/3)1
Phase 2 (including phase 1/2)6
Phase 10

Source: NIH National Library of Medicine, ClinicalTrials.gov, data as of Nov 11, 2026

How this was calculated

Searched the ClinicalTrials.gov intervention field for the name, downloaded every matching record and counted by overall status and phase. Combined phases are counted under the higher phase. Phase not applicable covers observational, device and behavioural studies.

Scope: Studies whose intervention field matches ibutamoren or MK-677 or MK 677 or MK-0677, any condition, any country, all statuses

A registered study is not a result. Counts include studies where the drug is a comparator or background treatment, and studies that never finished or reported.

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Published research

Published papers mentioning ibutamoren (MK-677)

PubMed indexes 118 papers that mention ibutamoren (MK-677) in the title or abstract, 34 of them published from 2016 to 2025. The count for 2025 is 8 and for 2024 is 1.

Published papers mentioning ibutamoren (MK-677): the figures
MeasureValueNote
Papers indexed, all years118
Published 2016 to 202534
Published in 20258
Published in 20241
Busiest year since 201620258 papers

Source: NIH National Library of Medicine, PubMed, data as of Nov 11, 2026

How this was calculated

Ran a PubMed title and abstract search for the exact name variants shown and recorded the count for each publication year. No filtering by study type or quality.

Scope: PubMed records with 'ibutamoren' or 'MK-677' or 'MK 677' or 'MK-0677' in the title or abstract, all article types and species

A paper that mentions a compound is not evidence that it works or is safe in people. Counts include animal, cell, review and opinion papers.

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Articles on ibutamoren (MK-677)