Pembrolizumab in Advanced/Metastatic Acral Lentiginous Melanoma

Brief Title

Pembrolizumab in Advanced/Metastatic Acral Lentiginous Melanoma

Official Title

An Open-label Phase II Study of Pembrolizumab in East Asian Patients With Advanced/Metastatic Acral Lentiginous Melanoma

Brief Summary

      To determine the Overall Response Rate (ORR), as defined as rate of complete response (CR)
      and partial response (PR) as per RECIST 1.1 in biological treatment-naïve patients with acral
      lentiginous melanoma treated with pembrolizumab

Study Phase

Phase 2

Study Type


Primary Outcome

Overall Response Rate (ORR)

Secondary Outcome

 response duration


Acral Lentiginous Melanoma



Study Arms / Comparison Groups



* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.

Recruitment Information

Recruitment Status


Estimated Enrollment


Start Date

February 15, 2017

Completion Date

February 28, 2022

Primary Completion Date

February 28, 2022

Eligibility Criteria

        Inclusion Criteria:

          -  Be willing and able to provide written informed consent/assent for the trial.

          -  Be 18 years of age on day of signing informed consent.

          -  Have measurable disease based on RECIST 1.1.

          -  Be willing to provide tissue from a newly obtained core or excisional biopsy of a
             tumor lesion. Newly-obtained is defined as a specimen obtained up to 6 weeks (42 days)
             prior to initiation of treatment on Day 1. Subjects for whom newly-obtained samples
             cannot be provided (e.g. inaccessible or subject safety concern) may submit an
             archived specimen only upon agreement from the Sponsor.

          -  Have a performance status of 0 or 1 on the ECOG Performance Scale.

          -  Demonstrate adequate organ function as defined in Table 1, all screening labs should
             be performed within 10 days of treatment initiation.

          -  Female subject of childbearing potential should have a negative urine or serum
             pregnancy within 72 hours prior to receiving the first dose of study medication. If
             the urine test is positive or cannot be confirmed as negative, a serum pregnancy test
             will be required.

          -  Female subjects of childbearing potential should be willing to use 2 methods of birth
             control or be surgically sterile, or abstain from heterosexual activity for the course
             of the study through 120 days after the last dose of study medication. Subjects of
             childbearing potential are those who have not been surgically sterilized or have not
             been free from menses for more than 1 year.

          -  Male subjects should agree to use an adequate method of contraception starting with
             the first dose of study therapy through 120 days after the last dose of study therapy.

        Exclusion Criteria:

          -  Is currently participating and receiving study therapy or has participated in a study
             of an investigational agent and received study therapy or used an investigational
             device within 4 weeks of the first dose of treatment.

          -  Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any
             other form of immunosuppressive therapy within 7 days prior to the first dose of trial

          -  Has a known history of active TB (Bacillus Tuberculosis)

          -  Hypersensitivity to pembrolizumab or any of its excipients.

          -  Has had a prior anti-cancer monoclonal antibody (mAb) within 4 weeks prior to study
             Day 1 or who has not recovered (i.e., equal and less than Grade 1 or at baseline) from
             adverse events due to agents administered more than 4 weeks earlier.

          -  Has had prior chemotherapy, targeted small molecule therapy, or radiation therapy
             within 2 weeks prior to study Day 1 or who has not recovered (i.e., equal and less
             than Grade 1 or at baseline) from adverse events due to a previously administered

               -  Note: Subjects with equal and less than Grade 2 neuropathy are an exception to
                  this criterion and may qualify for the study.

               -  Note: If subject received major surgery, they must have recovered adequately from
                  the toxicity and/or complications from the intervention prior to starting

          -  Has a known additional malignancy that is progressing or requires active treatment.
             Exceptions include basal cell carcinoma of the skin or squamous cell carcinoma of the
             skin that has undergone potentially curative therapy or in situ cervical cancer.

          -  Has known active central nervous system (CNS) metastases and/or carcinomatous
             meningitis. Subjects with previously treated brain metastases may participate provided
             they are stable (without evidence of progression by imaging for at least eight weeks
             prior to the first dose of trial treatment), have no evidence of new or enlarging
             brain metastases, and are not using steroids for at least 7 days prior to trial
             treatment. This exception does not include carcinomatous meningitis which is excluded
             regardless of clinical stability.

          -  Has active autoimmune disease that has required systemic treatment in the past 2 years
             (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive
             drugs). Replacement therapy (eg., thyroxine, insulin, or physiologic corticosteroid
             replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a
             form of systemic treatment.

          -  Has known history of, or any evidence of active, non-infectious pneumonitis.

          -  Has an active infection requiring systemic therapy.

          -  Has a history or current evidence of any condition, therapy, or laboratory abnormality
             that might confound the results of the trial, interfere with the subject's
             participation for the full duration of the trial, or is not in the best interest of
             the subject to participate, in the opinion of the treating investigator.

          -  Has known psychiatric or substance abuse disorders that would interfere with
             cooperation with the requirements of the trial.

          -  Is pregnant or breastfeeding, or expecting to conceive or father children within the
             projected duration of the trial, starting with the pre-screening or screening visit
             through 120 days after the last dose of trial treatment.

          -  Has received prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent.

          -  Has a known history of Human Immunodeficiency Virus (HIV) (HIV 1/2 antibodies).

          -  Has known active Hepatitis B (e.g., HBsAg reactive) or Hepatitis C (e.g., HCV RNA
             [qualitative] is detected).

          -  Has received a live vaccine within 30 days of planned start of study therapy.




18 Years - N/A

Accepts Healthy Volunteers



, , 

Location Countries

Hong Kong

Location Countries

Hong Kong

Administrative Informations



Organization ID


Responsible Party

Principal Investigator

Study Sponsor

Chinese University of Hong Kong

Study Sponsor

, , 

Verification Date

March 2023