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No longer recruiting (closed or complete)Last updated: 19 June 2025

CheckMate 238: The purpose of this study is to determine whether nivolumab immunotherapy is better than ipilimumab immunotherapy at preventing recurrence of melanomaA Phase 3, Randomized, Double-blind Study of Adjuvant Immunotherapy With Nivolumab Versus Ipilimumab After Complete Resection of Stage IIIb/c or Stage IV Melanoma in Subjects Who Are at High Risk for Recurrence (CheckMate 238: CHECKpoint Pathway and nivoluMAb Clinical Trial Evaluation 238)

Trial purpose

Medical clipboardCancer treatment

Tumor type

Skin Cancers Skin

Age

People15+

Trial acronym

CheckMate 238

Clinical summary

Summary

Eligible participants will be randomly allocated to one of two treatments arms.

Arm A will receive Ipilimumab immunotherapy and a placebo that matches nivolumab.

Arm B will receive Nivolumab immunotherapy and a placebo that matches ipilimumab.

Conditions

This trial is treating people with melanoma which has been completely removed by surgery

Eligibility

Inclusion

  • At least 15 years of age Except: where local regulations and/or institutional policies do not allow for subjects < 18 years of age (pediatric population) to participate. For those sites, the eligible subject population is ≥ 18 years of age
  • Completely removed melanoma by surgery performed within 12 weeks of randomization
  • Stage IIIb/C or Stage IV before complete resection
  • No previous anti-cancer treatment

Exclusion

  • Ocular or uveal melanoma
  • History of carcinomatosis meningitis
  • History of auto-immune disease
  • Treatment directed against the resected melanoma that is administrated after the surgery

Other protocol-defined inclusion/exclusion criteria apply

Inclusion

  • You have had a certain type of treatment or surgical procedure.

Exclusion

  • You have been diagnosed with a prior or secondary type of cancer.
  • You have certain types of non-cancer medical conditions.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

Participating hospitals

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No longer recruiting (closed or complete) hospitals

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More information

Trial Identifiers

Information on this page is partially produced from ClinicalTrials.gov *. View further details about this trial on the registry via the links below:

Trial sponsor

Bristol-Myers Squibb

Scientific Title

A Phase 3, Randomized, Double-blind Study of Adjuvant Immunotherapy With Nivolumab Versus Ipilimumab After Complete Resection of Stage IIIb/c or Stage IV Melanoma in Subjects Who Are at High Risk for Recurrence (CheckMate 238: CHECKpoint Pathway and nivoluMAb Clinical Trial Evaluation 238)

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