A Study to Determine Effective Prophylaxis and Treatment of Nelfinavir-Associated Diarrhea

This study has been terminated.

(The study was prematurely discontinued due to administrative reasons on August 18, 2003. There were no safety concerns that led to the decision to terminate.)

Sponsor:

Information provided by:

Pfizer

ClinicalTrials.gov Identifier:

NCT00650637

First received: March 31, 2008

Last updated: June 3, 2011

Last verified: June 2011

History of Changes

Purpose

The purpose of this study was to determine the efficacy and safety of calcium carbonate for the prevention of nelfinavir-associated diarrhea and to evaluate the efficacy and safety of calcium carbonate in combination with loperamide for the treatment of nelfinavir-associated diarrhea.

Condition	Intervention	Phase
Diarrhea	Drug: Calcium Carbonate Drug: nelfinavir Drug: lamivudine Drug: loperamide Other: Calcium carbonate not administered Drug: lamivudine + zidovudine	Phase 3


Study Type:	Interventional
Study Design:	Allocation: Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Parallel Assignment Masking: Open Label Primary Purpose: Prevention
Official Title:	A Randomized, Open-Label, Third-Party Blinded Study for the Prophylaxis and Treatment of Nelfinavir-associated Diarrhea

Resource links provided by NLM:

MedlinePlus related topics: Calcium Diarrhea

Drug Information available for: Calcium Gluconate Calcium carbonate Zidovudine Loperamide hydrochloride Loperamide Lamivudine Nelfinavir Nelfinavir Mesylate

U.S. FDA Resources

Further study details as provided by Pfizer:

Primary Outcome Measures:

Number of patients who experienced protocol-defined diarrhea in each treatment group during study [ Time Frame: Week 12 ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:

Time to first occurrence of protocol-defined diarrhea [ Designated as safety issue: Yes ]
The outcome of calcium carbonate plus loperamide in treating subjects who experienced diarrhea [ Time Frame: Weeks 2, 4, 6, 8, and 12 ] [ Designated as safety issue: Yes ]
Frequency and severity of diarrhea collected from the subject daily diary during the study will be summarized before and after subjects receive calcium carbonate plus loperamide [ Time Frame: Weeks 2, 4, 6, 8, and 12 ] [ Designated as safety issue: Yes ]
Safety evaluations including physical exam, weight and vital signs measurements [ Time Frame: Screening, baseline, Weeks 2, 4, 6, 8, and 12 ] [ Designated as safety issue: Yes ]
Safety assessment of laboratory parameters [ Time Frame: Screening, baseline, Weeks 4, 8, and 12 ] [ Designated as safety issue: Yes ]


Enrollment:	17
Study Start Date:	January 2003
Study Completion Date:	August 2003
Primary Completion Date:	August 2003 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
Experimental: 1	Drug: Calcium Carbonate Calcium carbonate 500 mg oral tablet twice a day; given in combination with the following antiretroviral combination: nelfinavir 1250 mg twice a day, and lamivudine 150 mg/zidovudine 300 mg twice a day (or stavudine 40 mg twice a day plus lamivudine 150 mg twice a day); If diarrhea develops, loperamide 2 mg oral caplet 3 times weekly; All study drugs continued through to Week 12 Drug: nelfinavir 1250 mg twice a day Other Name: Viracept Drug: lamivudine lamivudine 150 mg/zidovudine 300 mg twice a day (or stavudine 40 mg twice a day plus lamivudine 150 mg twice a day); Drug: loperamide If diarrhea develops, loperamide 2 mg oral caplet 3 times weekly;
Experimental: 2	Other: Calcium carbonate not administered Prophylaxis with calcium carbonate not administered in this group; The following antiretroviral combination was administered: nelfinavir 1250 mg twice a day, and lamivudine 150 mg/zidovudine 300 mg twice a day (or stavudine 40 mg twice a day plus lamivudine 150 mg twice a day); Drug: nelfinavir nelfinavir 1250 mg twice a day Other Name: Viracept Drug: lamivudine + zidovudine lamivudine 150 mg/zidovudine 300 mg twice a day (or stavudine 40 mg twice a day plus lamivudine 150 mg twice a day);

Arms

Assigned Interventions

Experimental: 1

Drug: Calcium Carbonate

Calcium carbonate 500 mg oral tablet twice a day; given in combination with the following antiretroviral combination: nelfinavir 1250 mg twice a day, and lamivudine 150 mg/zidovudine 300 mg twice a day (or stavudine 40 mg twice a day plus lamivudine 150 mg twice a day); If diarrhea develops, loperamide 2 mg oral caplet 3 times weekly; All study drugs continued through to Week 12

Drug: nelfinavir

1250 mg twice a day

Other Name: Viracept

Drug: lamivudine

lamivudine 150 mg/zidovudine 300 mg twice a day (or stavudine 40 mg twice a day plus lamivudine 150 mg twice a day);

Drug: loperamide

If diarrhea develops, loperamide 2 mg oral caplet 3 times weekly;

Experimental: 2

Other: Calcium carbonate not administered

Prophylaxis with calcium carbonate not administered in this group; The following antiretroviral combination was administered: nelfinavir 1250 mg twice a day, and lamivudine 150 mg/zidovudine 300 mg twice a day (or stavudine 40 mg twice a day plus lamivudine 150 mg twice a day);

Drug: nelfinavir

nelfinavir 1250 mg twice a day

Other Name: Viracept

Drug: lamivudine + zidovudine

lamivudine 150 mg/zidovudine 300 mg twice a day (or stavudine 40 mg twice a day plus lamivudine 150 mg twice a day);

Eligibility


Ages Eligible for Study:	18 Years and older (Adult, Senior)
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

Inclusion Criteria:

Antiretroviral-naive patients with HIV-1 infection
not more than 2 loose stools per day or any preexisting or emerging medical condition that would interfere with the evaluation of therapeutic response of the study drug
No antidiarrheal medication within 7 days prior to entry

Exclusion Criteria:

Greater than or equal to 2 loose stools per day lasting 2 or more days within 7 days prior to study entry
Bloody stools within 7 days prior to study entry
Any unstable or severe intercurrent medical condition, including active opportunistic infections

Contacts and Locations

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00650637

Locations


United States, Alabama
Pfizer Investigational Site
Birmingham, Alabama, United States, 35233
United States, Florida
Pfizer Investigational Site
Ft. Lauderdale, Florida, United States, 33308
United States, New York
Pfizer Investigational Site
New York, New York, United States, 10011
United States, North Carolina
Pfizer Investigational Site
Huntersville, North Carolina, United States, 28078
United States, Texas
Pfizer Investigational Site
Austin, Texas, United States, 78705
Pfizer Investigational Site
Houston, Texas, United States, 77098

Sponsors and Collaborators

Pfizer

Investigators


Study Director:	Pfizer CT.gov Call Center	Pfizer

More Information

Additional Information:

To obtain contact information for a study center near you, click here. This link exits the ClinicalTrials.gov site


Responsible Party:	Director, Clinical Trial Disclosure Group, Pfizer, Inc.
ClinicalTrials.gov Identifier:	NCT00650637 History of Changes
Other Study ID Numbers:	A4301004
Study First Received:	March 31, 2008
Last Updated:	June 3, 2011
Health Authority:	United States: Food and Drug Administration

Additional relevant MeSH terms:


Diarrhea Signs and Symptoms, Digestive Signs and Symptoms Calcium, Dietary Lamivudine Zidovudine Lamivudine, zidovudine drug combination Nelfinavir Calcium Carbonate Loperamide Antidiarrheals Bone Density Conservation Agents Physiological Effects of Drugs	Reverse Transcriptase Inhibitors Nucleic Acid Synthesis Inhibitors Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action Anti-Retroviral Agents Antiviral Agents Anti-Infective Agents Anti-HIV Agents Antimetabolites Antacids Gastrointestinal Agents HIV Protease Inhibitors Protease Inhibitors

ClinicalTrials.gov processed this record on September 27, 2016

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