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CompletedNCT03639246Updated Feb 13, 2023

Efficacy and Safety Study of AVB-S6-500 in Patients With Platinum-Resistant Recurrent Ovarian Cancer

A Phase 1 interventional study of AVB-S6-500 and Paclitaxel (Pac) in Ovarian Cancer, sponsored by Aravive, Inc.. Completed at 16 sites in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-02-13.

Sponsored by Aravive, Inc. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Jan 2021, 5 years 10 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
53
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

This is a Phase 1b/2 study of AVB-S6-500 in combination with pegylated liposomal doxorubicin (PLD) or paclitaxel (Pac) in patients with platinum resistant recurrent ovarian cancer. The phase 1b portion of the study is open label and patients will receive either AVB-S6-500+PLD or AVB-S6-500+ Pac. The Phase 2 portion of the study is randomized, double-blind, placebo-controlled study to compare efficacy and tolerability of AVB-S6-500 in combination with PLD or Pac versus placebo plus PLD or Pac.

Read the detailed description

While this study was planned as two-part study consisting of a Phase 1b and a Phase 2 portion, the sponsor decided not to proceed with the Phase 2 portion.

The Phase 1b portion of the study was a multicenter, 2-group, open-label design to evaluate the safety and tolerability of AVB-S6-500 combined with PLD or Pac in subjects with platinum-resistant recurrent ovarian cancer. The decision to enroll in the Phase 2 portion of the study was to be driven by the recommendation of a safe and tolerable dose of AVB-S6-500 in combination with each chemotherapy backbone; however, enrollment into the Phase 2 portion was not initiated per Sponsor decision. Given that sufficient data were obtained in the Phase 1b portion AVB-S6-500 + Pac group, the decision was made to pursue a randomized Phase 3 to further study the benefit of this combination versus paclitaxel alone in patients with platinum resistant ovarian cancer.

02

Conditions studied

  • Ovarian Cancer

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Keywords

  • Ovarian cancer
  • Platinum resistant
03

In context

Ovarian Neoplasms

3,381 studies on the registry are indexed under Ovarian Neoplasms; 790 are open to participants now.

This study's enrollment of 53 is close to the median of 54 across 2,548 interventional studies indexed under Ovarian Neoplasms.

Browse Ovarian Neoplasms studies →

Lead sponsor

Aravive, Inc. is the lead sponsor of 6 studies on the registry; none are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 1 (17%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age 18 years or older
  • confirmed and documented recurrent ovarian, fallopian tube, and peritoneal cancer.
  • Platinum resistant disease, defined as progression within ≤ 6 months from completion of most recent regimen and calculated from the date of the last administered dose of platinum therapy
  • Must have available archived tumor tissue OR if archived tissue is not available, willing to provide a fresh tumor
  • Must have radiologic imaging with a computerized tomography (CT) scan or magnetic resonance imaging (MRI) within 4 weeks of first dose of study drug
  • Received at least 1 but not more than 3 therapy regimens, not including maintenance or therapy
  • Must have ovarian cancer that is measurable according to 1.1
  • performance status of 0-1
  • Normal gastrointestinal (GI), bone marrow, liver and kidney function
  • At least 28 days between termination of prior anti-cancer or hormonal therapy and administration of AVB-S6-500

Exclusion criteria

Exclusion Criteria:

  • Primary platinum- disease (defined as progression during the first platinum regimen or within 4 weeks of completion of the first platinum regimen)
  • Currently being treated with concurrent anti-cancer therapy or any other interventional treatment or trial
  • Received prior therapy with Pac or PLD in the recurrent setting, depending on physician-chosen chemotherapy for this study
  • Significant cardiac disease history
  • Has other prior or concurrent within the past 5 years except adequately treated basal cell skin cancer or carcinoma in situ of the cervix
  • Symptomatic or
  • Serious active infection requiring IV antibiotics and/or hospitalization at study entry
  • Has known previous or current human immune deficiency () syndrome, , or
  • Has had paracentesis for ascites within 3 months
Terms in these criteria, in plain language(12)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Adjuvant and neoadjuvant

Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
53 participants (actual)

Study arms

  • Experimental
    Phase 1b: AVB-S6-500+PLD

    Drug: AVB-S6-500 · Drug: Pegylated liposomal doxorubicin (PLD)

  • Experimental
    Phase 1b: AVB-S6-500+Pac

    Drug: AVB-S6-500 · Drug: Paclitaxel (Pac)

  • Experimental
    Phase 2: AVB-S6-500+PLD

    Drug: AVB-S6-500 · Drug: Pegylated liposomal doxorubicin (PLD)

  • Experimental
    Phase 2: AVB-S6-500+Pac

    Drug: AVB-S6-500 · Drug: Paclitaxel (Pac)

  • Active comparator
    Phase 2: Placebo+PLD

    Drug: Pegylated liposomal doxorubicin (PLD) · Other: Placebo

  • Active comparator
    Phase 2: Placebo+Pac

    Drug: Paclitaxel (Pac) · Other: Placebo

Interventions

06

What researchers measure

Primary outcomes

  1. Incidence of Adverse Events (AEs)

    Measured by the number of patients with AEs in Phase 1 portion of the study.

    Time frame: 6 months

  2. Anti-tumor activity of AVB-S6-500 in combination with PLD

    Measured by progression free survival (PFS) in patients receiving AVB-S6-500+PLD versus patients receiving Placebo+PLD in Phase 2 portion of the study.

    Time frame: 18 months

  3. Anti-tumor activity of AVB-S6-500 in combination with Pac

    Measured by progression free survival (PFS) in patients receiving AVB-S6-500+ Pac versus patients receiving Placebo+Pac in Phase 2 portion of the study.

    Time frame: 18 months

Secondary outcomes

  1. Pharmacokinetics: AUC

    Area under the AVB-S6-500 concentration-time curve.

    Time frame: 18 months

  2. Pharmacokinetics: Cmax

    Maximum observed AVB-S6-500 concentration.

    Time frame: 18 months

  3. Pharmacokinetics: Tmax

    Time of maximum observed AVB-S6-500 concentration.

    Time frame: 18 months

  4. Pharmacokinetics: t1/2

    Apparent terminal half-life of AVB-S6-500.

    Time frame: 18 months

  5. Pharmacodynamic marker assessment

    Change from the baseline in GAS6 serum levels.

    Time frame: 18 months

  6. Anti-drug antibody (ADA) titers

    Change from baseline in ADA titer.

    Time frame: 18 months

  7. Objective response rate

    Proportion of subjects who have a partial or complete response to therapy relative to baseline as assessed per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 as well as Gynecologic Cancer Intergroup (GCIG) cancer antigen (CA)-125 criteria.

    Time frame: 18 months

  8. Disease control rate

    Proportion of subjects who have a complete or partial response to therapy or maintain stable disease.

    Time frame: 18 months

  9. Duration of response (DOR)

    Measured from the date of partial or complete response to therapy until the cancer progresses.

    Time frame: 18 months

  10. Overall survival

    Time following the treatment until death.

    Time frame: 30 months

  11. CA-125 response rate

    Proportion of subjects with a minimum 50% reduction in CA-125 serum levels lasting for 28 days relative to baseline CA-125 serum levels.

    Time frame: 18 months

  12. Quality of Life(QOL)

    Subject QOL will be assessed every 8 weeks during treatment using the Functional Assessment Of Cancer Therapy - Ovarian Cancer (FACT-O) questionnaire, which consists of 4 subscales: physical well-being (7 questions), social/family well-being (7 questions), emotional well-being (6 questions), and functional well-being (7 questions), and 12 additional concerns specific to ovarian cancer. All items are rated on a 5 point scale with 0 "not at all" and 4 "very much". The scoring algorithm allows for eight summary scales: the four core well-being subscales, a subtotal of the 27 core items, a subtotal of the 12 ovarian-specific additional concerns, a grand total of the 39 items, and a trial outcome index (sum of the 17 physical and functional wellbeing items plus the 12 ovarian-specific items).

    Time frame: 18 months

07

Study locations

16 sites
  • Arizona Oncology
    Phoenix, Arizona 85016, United States
  • Arizona Oncology Associates
    Tucson, Arizona 85711, United States
  • Kaiser Permanente Oakland
    Oakland, California 94611, United States
  • Kaiser Permanente Roseville
    Roseville, California 95661, United States
  • Kaiser Permanente San Francisco
    San Francisco, California 94115, United States
  • Kaiser Permanente Santa Clara
    Santa Clara, California 95051, United States
  • Kaiser Permanente Vallejo
    Vallejo, California 94589, United States
  • Kaiser Permanente Walnut Creek
    Walnut Creek, California 94596, United States
  • Massachusetts General Hospital
    Boston, Massachusetts 02214, United States
  • Dana Farber Cancer Institute
    Boston, Massachusetts 02215, United States
  • Washington University
    Saint Louis, Missouri 63110, United States
  • OUHSC-Stephenson Cancer Center
    Oklahoma City, Oklahoma 73104, United States
  • Willamette Valley Cancer Institute and Research Center
    Eugene, Oregon 97401, United States
  • Texas Oncology - Austin Central
    Austin, Texas 78731, United States
  • Texas Oncology - Fort Worth
    Fort Worth, Texas 76104, United States
  • Texas Oncology - San Antonio Medical Center
    San Antonio, Texas 78240, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 13, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03639246
Lead sponsor
Aravive, Inc.
Responsible party
Sponsor
First posted
Aug 21, 2018
Start date
Dec 6, 2018
Primary completion
Jan 8, 2021
Completion
Dec 30, 2022
Last update
Feb 13, 2023

Study contacts

Amy Franke
study director · Aravive, Inc.

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2023. You cannot join it, but the record below documents what was studied.

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Studies of the drugs tested here: Batiraxcept · Paclitaxel · Liposomal doxorubicin

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