for people ages 18 years and up (full criteria)
at San Francisco, California
study started
estimated completion
Principal Investigator
Kieron Leslie
Photo of Kieron Leslie
Kieron Leslie



To determine the safety of escalating IV doses of Tc 99m tilmanocept in HIV (human immunodeficiency virus) subjects with confirmed KS and to compare results obtained from subcutaneous and IV administrations of Tc 99m tilmanocept in the same subjects.

Official Title

An Evaluation of the Safety of Escalating Doses of Tc 99m Tilmanocept by Intravenous (IV) Injection and a Comparison to Subcutaneous (SC) Injection in Human Immunodeficiency Virus (HIV) Subjects Diagnosed With Kaposi Sarcoma (KS)


This is a Manocept Platform prospective, single-center, open-label, non-randomized, dose escalation, comparative, safety study of intravenously and subcutaneously injected Tc 99m tilmanocept in the localization and detection of cutaneous and non-cutaneous KS tumor(s) in subjects with biopsy-confirmed KS. Three IV doses (µg/mCi) of tilmanocept will be evaluated in three cohort groups. One subcutaneous dose will be evaluated in cohort group 3.

This study is designed to evaluate the safety and tolerability of escalating doses of IV Tc 99m tilmanocept and to compare results obtained from IV and subcutaneous administrations of Tc 99m tilmanocept in the same subjects. Whole body planar as well as SPECT/CT imaging will be performed to provide greater resolution of areas of Tc 99m tilmanocept localization. A biopsy of a non-visceral KS lesion will be taken to correlate pathology with Tc 99m tilmanocept localization.

This study is designed to evaluate the use of Tc 99m tilmanocept as an imaging agent in HIV-positive subjects with known KS by evaluating localization in known and unknown cutaneous and non-cutaneous lesions.


Kaposi Sarcoma HIV Infections Kaposi Sarcoma, KS, HIV Sarcoma, Kaposi Sarcoma Tc99m-tilmanocept


You can join if…

Open to people ages 18 years and up

  1. The subject has provided written informed consent with HIPAA authorization before the initiation of any study-related procedures.
  2. The subject is at least 18 years of age at the time of consent.
  3. The subject is HIV positive.
  4. The subject has a biopsy-confirmed diagnosis of KS and is classified into one of the categories below:
  5. Confirmed cutaneous KS/oral lesions without edema.
  6. Confirmed cutaneous KS/oral lesions with edema.
  7. Confirmed cutaneous KS/oral lesions with or without edema and suspected non-cutaneous KS due to clinical symptomology or confirmed non-cutaneous KS lesion(s).

You CAN'T join if...

  1. The subject is pregnant or lactating.
  2. The subject has received chemotherapy or radiation therapy to KS sites within six weeks of enrollment.
  3. The subject has known sensitivity to dextran.
  4. The subject has received an investigational product within 30 days prior to the Tc 99m tilmanocept administration on Day 1.
  5. The subject has received any radiopharmaceutical within 7 days prior to the administration of Tc 99m tilmanocept on Day 1.
  6. Any condition that, in the clinical judgment of the treating physician, is likely to prevent the subject from complying with any aspect of the protocol or that may put the subject at unacceptable risk.


  • Zuckerberg San Francisco General Hospital
    San Francisco California 94143 United States

Lead Scientist at UCSF

  • Kieron Leslie
    Professor, Dermatology. Authored (or co-authored) 63 research publications.


in progress, not accepting new patients
Start Date
Completion Date
Navidea Biopharmaceuticals
Phase 1
Study Type
Last Updated