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Advanced Solid TumorsPhase 1NCT00635778

A Dose-finding Study of Dalotuzumab in Subjects With Advanced Solid Tumors (MK-0646-002)

A Phase 1 study testing dalotuzumab in people with Advanced Solid Tumors, run by Merck Sharp & Dohme LLC.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study determined the recommended Phase 2 loading and maintenance doses and dose schedules for administering dalotuzumab using dose-limiting toxicities (DLTs) observed during the entire treatment period (Up to 18 months). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Advanced Solid Tumors
What is being tested?
dalotuzumab
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
No sites listed yet
Study dates
7 Aug 2006to 5 Nov 2008
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

Who may be able to join

  • Males and females with advanced solid tumors who have failed to respond to standard therapy, ages 18 years and older, with adequate organ function

Who cannot join

  • Participant is using growth hormones or growth hormone inhibitors
  • Participant is known to be allergic to components of the drug or similar drugs (e.g. monoclonal antibodies such as rituximab or biological therapies such as immunoglobulin G
  • Participant has had chemotherapy, radiotherapy, or biological therapy within 4-6 weeks of entering the study or has not recovered from previous therapy
  • Participant is taking part in or has taken part in a study of an investigational compound or device within 30 days of their first dose of study drug
  • Participant has an active Central Nervous System metastases and/or carcinomatous meningitis. However, a participant who has completed a course of therapy and is clinically stable may be able to participate
  • Participant is pregnant or breastfeeding
Show all 10Show fewer
  • Participant is human immunodeficiency virus (HIV) positive
  • Participant has a history of Hepatitis B or C
  • Participant has symptomatic ascites or pleural effusion. However, if the participant has received treatment and is stable, they may be able to participate
  • Female participant plans to become pregnant or a male participant who plans to impregnate their partner during the time the study is ongoing

About this study

Official title: An Open-Label, Dose Escalation Phase I Trial of MK-0646 Given as a One to Two Hour Every Other Week Infusion in Patients With Relapsed or Refractory Locally Advanced or Metastatic Cancers

The study determined the recommended Phase 2 loading and maintenance doses and dose schedules for administering dalotuzumab using dose-limiting toxicities (DLTs) observed during the entire treatment period (Up to 18 months). The primary hypothesis of the study was that administration of dalotuzumab as an every other week infusion in participants with relapsed or refractory locally advanced or metastatic cancers associated with a high frequency of insulin-like growth factor receptor type 1(IGF-1R) overexpression will be generally safe and well tolerated to permit further study and achieve a constant clearance and a minimum trough concentration of 3 µg/mL.

Read the detailed description

The study consisted of 3 parts. In Part 1 the loading dose was escalated while the maintenance dose was kept constant. In Part 2 the loading dose was kept constant while the maintenance dose was escalated. In Part 3 the recommended phase 2 loading and maintenance doses and schedule were administered to an expanded cohort to explore safety and efficacy of dalotuzumab.

Being tested
dalotuzumab

What participants receive

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

  • dalotuzumabDrug

    Also called MK-0646

    Administered as an IV infusion over one to two hours

Study groups in NCT00635778
Study groupRoleWhat they receive
dalotuzumab 2.5/2.5 mg/kgExperimentalParticipants received a loading dose of dalotuzumab 2.5 mg/kg administered by intravenous (IV) infusion. Two weeks following completion of the loading dose, participants received a maintenance dose of dalotuzumab 2.5 mg/kg administered by IV infusion every two weeks for up to 18 months.
Receives: Drug: dalotuzumab
dalotuzumab 5.0/5.0 mg/kgExperimentalParticipants received a loading dose of dalotuzumab 5.0 mg/kg administered by IV infusion. Two weeks following completion of the loading dose, participants received a maintenance dose of dalotuzumab 5.0 mg/kg administered by IV infusion every two weeks for up to 18 months.
Receives: Drug: dalotuzumab
dalotuzumab 10.0/5.0 mg/kgExperimentalParticipants received a loading dose of dalotuzumab 10.0 mg/kg administered by IV infusion. Two weeks following completion of the loading dose, participants received a maintenance dose of dalotuzumab 5.0 mg/kg administered by IV infusion every two weeks for up to 18 months.
Receives: Drug: dalotuzumab
dalotuzumab 15.0/5.0mg/kgExperimentalParticipants received a loading dose of dalotuzumab 15.0 mg/kg administered by IV infusion. Two weeks following completion of the loading dose, participants received a maintenance dose of dalotuzumab 5.0 mg/kg administered by IV infusion every two weeks for up to 18 months.
Receives: Drug: dalotuzumab
dalotuzumab 20.0/5.0 mg/kgExperimentalParticipants received a loading dose of dalotuzumab 20.0 mg/kg administered by IV infusion. Two weeks following completion of the loading dose, participants received a maintenance dose of dalotuzumab 5.0 mg/kg administered by IV infusion every two weeks for up to 18 months.
Receives: Drug: dalotuzumab
dalotuzumab 15.0/10.0 mg/kgExperimentalParticipants received a loading dose of dalotuzumab 15.0 mg/kg administered by IV infusion. Two weeks following completion of the loading dose, participants received a maintenance dose of dalotuzumab 10.0 mg/kg administered by IV infusion every two weeks for up to 18 months.
Receives: Drug: dalotuzumab
dalotuzumab 15.0/15.0 mg/kgExperimentalParticipants received a loading dose of dalotuzumab 15.0 mg/kg administered by IV infusion. Two weeks following completion of the loading dose, participants received a maintenance dose of dalotuzumab 15.0 mg/kg administered by IV infusion every two weeks for up to 18 months.
Receives: Drug: dalotuzumab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Steady-state Serum Concentration of Dalotuzumab at 336 Hours (C336) After the First Maintenance Dose

    Blood samples were obtained for analysis of steady-state serum concentration of dalotuzumab at 336 hours (C336) after the first maintenance dose of dalotuzumab. The C336 of dalotuzumab after intravenous administration is presented.

    Measured: 2 weeks post first maintenance dose of study drug (3 weeks post loading dose of study drug)

  2. Number of Participants Who Experience One or More Dose- Limiting Toxicities (DLTs)

    Dose-limiting toxicities (DLT) were assessed and graded using the National Cancer Institute (NCI) Common Toxicity Criteria for Adverse Events (CTCAE). A DLT was defined as the occurrence of any of the following events, that were judged by the study investigator, to be related to the study medication: Grade 4 neutropenia; Grade 3 neutropenia with fever >38.5 degrees Celsius; Grade 4 thrombocytopenia; Grade 3 or Grade 4 non-hematologic toxicity (except alopecia and inadequately treated diarrhea, nausea, and vomiting, and hyperglycemia lasting less than 5 days; and Grade 3 or greater hyperglycemia lasting for more than 5 days in spite of optimal medical management.

    Measured: The entire treatment period (Up to 18 months)

Secondary outcomes (16)
  1. Number of Participants Who Experienced a Complete Response (CR) or Partial Response (PR)

    Complete Response (disappearance of all target lesions) or Partial Response (at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) using Response Criteria in Solid Tumors (RECIST). Tumor response was assessed prior to first dose and every 8 weeks beginning pre-dose of Week 9 for up to 18 months. The best response out of all measurements for each participant was used for determining CR and PR.

    Measured: Up to 18 months post first dose of study drug

  2. Percent Change From Baseline in Serum Insulin-like Growth Factor Receptor Type 1 (IGF-1R) Protein Level at Week 1

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 1

  3. Number of Participants With a Positive Human-anti-humanized-antibody (HAHA) Titer

    The formation of HAHAs may block efficacy by prematurely clearing dalotuzumab and limit the possibility of future dalotuzumab therapy. Blood samples for the measurement of serum levels of HAHAs were obtained prior to treatment with dalotuzumab, and pre-dose Week 3, Week 5, pre-dose every 8 subsequent weeks, and end of treatment (post-study: 4 weeks after last dose of study drug). Positive HAHA status for a participant is defined as testing positive on both the screening and immunodepletion assays at one or more visits.

    Measured: Prior to second and subsequent doses of study drug (Up to 1 year post-first dose)

  4. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 5

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 5

  5. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 9

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 9

  6. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 13

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 13

  7. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 17

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 17

  8. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 21

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 21

  9. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 25

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 25

  10. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 29

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 29

  11. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 33

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 33

  12. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 37

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 37

  13. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 41

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 41

  14. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 45

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 45

  15. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 49

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 49

  16. Percent Change From Baseline in Serum IGF-1R Protein Level at Week 53

    IGF-1R expression was measured in pre- and post-dose biopsy samples using immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA) assays. Results were expressed as a percent change from baseline in IG1-FR expression for participants pooled across all dose arms in the study and calculated by study week. A post-dose decrease in IGF-1R expression was an indication of target engagement by dalotuzumab. A larger percent change correlated with a greater target engagement.

    Measured: Baseline and Week 53

Timeline

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

  1. First posted14 Mar 2008 (estimated)
  2. Study start7 Aug 2006
  3. Primary completion5 Nov 2008
  4. Study completion5 Nov 2008

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
Parallel groups
Masking
None (open label)
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00635778
Sponsor's protocol ID
0646-002
Other IDs
MK-0646-002
Status last verified
Feb 2018
First submitted
29 Feb 2008
Last updated
9 Oct 2018
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing dalotuzumab in people with Advanced Solid Tumors, run by Merck Sharp & Dohme LLC.

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

Who may be eligible to take part?

The sponsor lists 1 inclusion and 10 exclusion criteria. 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: finished, as of the sponsor's last update on 9 Oct 2018. Status can change between updates, so confirm with the study contact before making plans.

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?

Yes. Results are posted in the registry (first posted 9 Oct 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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.

What does the primary outcome measure?

Steady-state Serum Concentration of Dalotuzumab at 336 Hours (C336) After the First Maintenance Dose (time frame: 2 weeks post first maintenance dose of study drug (3 weeks post loading dose of study drug)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

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 9 Oct 2018.

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