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NeoplasmsPhase 1NCT00024687

Study of SS1(dsFv)-PE38 (SS1P) Anti-Mesothelin Immunotoxin in Advanced Malignancies: IV Infusion QOD x Six Doses

A Phase 1 study testing SS1(dsFv)-PE38 (SS1P) Anti-Mesothelin Immunotoxin in people with Neoplasms, run by INSYS Therapeutics Inc at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

Although Neopharm has terminated its sponsorship of this study, it is continuing under the sponsorship of the NCI. Please contact Raffit Hassan, MD at 301-451-8742 for more information. Also see the related NCI study "Experimental Drug SS1(dsFv)-PE38 to Treat Cancer" (Study ID number 010011). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Neoplasms
What is being tested?
SS1(dsFv)-PE38 (SS1P) Anti-Mesothelin Immunotoxin
How many people
0 participants
Where
1 siteUnited States
Study dates
Nov 2000to not given
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

-Disease Characteristics-

Histopathologic diagnosis of one of the following malignancies: ovarian carcinoma, all non-mucinous epithelial histologies, including primary peritoneal and fallopian tube carcinoma; malignant mesothelioma, except sarcomatous histology; squamous cell cancer of the lung; squamous cell cancer of the cervix; or squamous cell cancer of the head and neck.

Tissue block must be available for analysis. Tumor, initial or recurrent, must be positive (at least 30% of tumor cells) for mesothelin by immunohistochemistry.

Recurrent unresectable disease after appropriate definitive therapy.

At least 4 weeks elapsed since any prior therapy, with recovery from side effects. No concurrent anti-tumor treatment of any kind.

Measurable or evaluable tumor documented within 4 weeks prior to study entry.

-Patient Characteristics-

At least 18 years of age.

At least 12-week life expectancy.

Performance Status (ECOG) 0-2.

Adequate organ function, including: Absolute neutrophil count at least 1,500/mm3; Platelets at least 75,000/mm3; Creatinine, Calcium, and total Bilirubin less than or equal to the upper limit of normal; Liver enzymes AST and ALT less than or equal 2.5 x the upper limit of normal; Albumin at least 3.0 g/dL; Oxygen (O2) saturation more than 93% (room air).

Informed Consent signed in accordance with institutional criteria.

No known central nervous system (CNS) or spinal cord involvement by tumor.

No detectable antibody to SS1(dsFv)-PE38.

No concurrent antitumor therapy.

No cardiovascular condition NY Heart Association Grade II-IV, or any clinically-significant pericardial effusion.

No infection requiring parenteral antibiotics; no HIV infection; and no seropositivity for Hepatitis B and Hepatitis C.

Must not be pregnant or nursing. Females of child-bearing potential must use an effective method of contraception.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • NCI/NIH

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Although Neopharm has terminated its sponsorship of this study, it is continuing under the sponsorship of the NCI. Please contact Raffit Hassan, MD at 301-451-8742 for more information. Also see the related NCI study "Experimental Drug SS1(dsFv)-PE38 to Treat Cancer" (Study ID number 010011).

SS1(dsFv)-PE38 is an oncology drug product containing a bacteria toxin, fused to a high affinity, disulfide stabilized antibody. The fused protein retains cell killing activity, but binds only to cells expressing mesothelin. Tumors characterized by very high surface mesothelin expression include mesothelioma; epithelial carcinomas of ovary and peritoneum; and squamous cancers of cervix and upper aerodigestive tract, including esophagus, head, and neck cancers.

This is a dose-escalating study to determine the maximum tolerated dose (MTD) of intravenous SS1(dsFv)-PE38 administered once every other day for six doses. Dose escalation will proceed in cohorts of 3 until dose-limiting toxicity (DLT) is observed.

Read the detailed description

OBJECTIVES: I. Determine the toxicities and maximum tolerated dose (MTD) of six doses of SS1(dsFv)-PE38 QOD administered by intravenous infusion to patients with advanced malignancies.

II. Characterize the plasma pharmacokinetics of SS1(dsFv)-PE38 after intravenous infusion.

III. Determine toxicities attributable to subsequent courses of SS1(dsFv)-PE38.

IV. Evaluate the response of selected advanced malignancies to intravenous infusion of six doses of SS1(dsFv)-PE38 QOD administered at the MTD.

  1. Determine the induction of antibody against SS1(dsFv)-PE38 and its relationship to pharmacokinetics.

PROTOCOL OUTLINE: To exclude immediate allergic hypersensitivity reaction, each patient will receive a test dose of SS1(dsFv)-PE38, and be observed for 30 minutes prior to receiving study dosing. Each treatment will be given by intravenous infusion over 30 minutes every other day. Hydration will be maintained. (Oral hydration may be adequate, but intravenous hydration may be used at the Investigator?s discretion.) Patients will be observed for at least 4 hours after infusion on Day 1 of each treatment course to exclude immediate allergic reaction. Treatment may be repeated for a maximum of two additional courses after 4 weeks if re-treatment criteria are met. At least three patients will be accrued at each dose level. Dose escalation within a patient will not be allowed.

PROJECTED ACCRUAL: Up to 30 patients

Conditions
Neoplasms
Being tested
SS1(dsFv)-PE38 (SS1P) Anti-Mesothelin Immunotoxin
Keywords
SS1(dsFv)-PE38 Anti-Mesothelin Immunotoxin, advanced malignancy
Medical subject headings
Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SS1(dsFv)-PE38 (SS1P) Anti-Mesothelin ImmunotoxinDrug

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Sep 2001 (estimated)
  2. Study startNov 2000

Why it stopped: Support withdrawn - Study continued by NCI - see record NCT00006981

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00024687
Sponsor's protocol ID
SS1PE-002
Status last verified
Nov 2014
First submitted
24 Sep 2001
Last updated
14 Nov 2014
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing SS1(dsFv)-PE38 (SS1P) Anti-Mesothelin Immunotoxin in people with Neoplasms, run by INSYS Therapeutics Inc at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 14 Nov 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Nov 2014.

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