A Study of Pharmacokinetic Drug Interaction Study of the Hedgehog Pathway Inhibitor GDC-0449 in Combination With Rosiglitazone or Combined Oral Contraceptive in Patients With Locally Advanced or Metastatic Solid Tumors That Are Refractory to Standard Therapy or for Whom No Standard Therapy Exists

Genentech

Status and phase: Completed; Phase 1

Conditions: Solid Cancers

Treatments: Drug: Rosiglitazone; Drug: Vismodegib; Drug: Norethindrone/ethinyl estradiol

Study type: Interventional

Funder types: Industry

Identifiers

NCT01209143

SHH4593g

GO01353 (Other Identifier)

Details and patient eligibility

About

This is a single-arm, multicenter, Phase Ib study designed to describe the effect of GDC-0449 on the pharmacokinetics of rosiglitazone and oral contraceptives in patients with advanced solid tumors who are refractory to treatment or for whom no standard therapy exists.

Enrollment: 52 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Histologic documentation of incurable, locally advanced, or metastatic solid malignancy that has failed to respond to at least one prior regimen or for which there is no standard therapy
• Documented negative serum pregnancy test for women of childbearing potential and use of two forms of contraception. Contraception must be used while the patient is enrolled in the study and for 12 months after the patient discontinues from the study.
• For men with female partners of childbearing potential, agreement to use a latex condom and to advise their female partner to use an additional method of contraception during the study and for 3 months after their last dose of GDC-0449.
• Agreement not to donate blood or blood products during the study and for at least 12 months after their last dose of GDC-0449
• For male patients, agreement not to donate sperm during the study and for at least 3 months after their last dose of GDC-0449
• Adequate hematopoietic capacity
• Adequate renal function
• Adequate hepatic function
• At least 3 weeks since the patient's last chemotherapy, investigational agent, radiation therapy, or major surgical procedure and recovery to pre-treatment baseline or stabilization of all treatment-related toxicities

Exclusion criteria

• Active infection requiring intravenous (IV) antibiotics
• Clinically important history of liver disease significantly impairing hepatic function, including active viral or other hepatitis, current alcohol abuse, or cirrhosis
• Any medical condition or diagnosis that would likely impair absorption of an orally administered drug
• Pregnant or lactating
• Treatment with excluded medications, including strong CYP450 inhibitors and inducers, within 2 weeks of study entry
• Male patients already receiving rosiglitazone
• Male patients with a known contraindication to rosiglitazone
• Female patients already receiving oral contraception < 14 days prior to Day 1
• Female patients with known contraindication to oral contraceptions

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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52 participants in 2 patient groups

Vismodegib + rosiglitazone

Experimental group

Description:

Participants received rosiglitazone 4 mg orally on Days 1 and 8 of the study. Participants also received vismodegib 150 mg orally once a day beginning on Day 2 until one of the following occurred; disease progression, intolerable toxicity, most probably attributable to vismodegib, or patient withdrawal of consent.

Treatment:

Drug: Rosiglitazone

Drug: Vismodegib

Vismodegib + oral contraceptive

Experimental group

Description:

Participants received the oral contraceptive norethindrone 1 mg/ethinyl estradiol 35 µg (Ortho-Novum 1/35®) orally on Days 1 and 8 of the study. Participants also received vismodegib 150 mg orally once a day beginning on Day 2 until one of the following occurred; disease progression, intolerable toxicity, most probably attributable to vismodegib, or patient withdrawal of consent.

Treatment:

Drug: Norethindrone/ethinyl estradiol

Drug: Vismodegib