Fauci ‘satisfied’ with enrollment for the first week of Covid-19 vaccine trial

Aug 7, 2020, 6:04 AM | Updated: 6:05 am

moderna announcement...

Nurse Kathe Olmstead, right, gives volunteer Melissa Harting, of Harpersville, N.Y., an injection as the world's biggest study of a possible COVID-19 vaccine, developed by the National Institutes of Health and Moderna Inc., gets underway Monday, July 27, 2020, in Binghamton, N.Y. (AP Photo/Hans Pennink)

(AP Photo/Hans Pennink)

    (CNN) — Dr. Anthony Fauci said he’s “satisfied” with the enrollment in the first week of the first US Phase 3 clinical trial of a Covid-19 vaccine.

CNN has obtained part of a Friday, July 31 email from Moderna, the company running the trial, that states 1,290 people were randomly assigned to get either the vaccine or a dummy shot as of that date. The trial began on Monday, July 27.

The email was sent to sites across the US that are participating in the Moderna trial. Moderna plans to enroll 30,000 people at its 89 sites.

“We hope within a period of a few months, a couple of months, that we’ll be able to enroll hopefully by the end of the summer so that we can start getting some results,” Fauci, director of the National Institute of Allergy and Infectious Diseases, said July 27 when he announced the start of the Phase 3 trial.

Fauci told CNN that he expects to get an answer about whether the vaccine works in November or December. “Maybe we’ll get an answer as early as October, but I doubt it,” he said.

If the pace of enrollment in the first week of the trial — 1,290 over five days — were to continue, the study wouldn’t be fully enrolled until late fall or early winter. But Fauci told CNN he expects the enrollment numbers to increase as the study continues.

“The first week had very few sites activated,” he said. “As more sites get activated, enrollment will very likely increase significantly.”

Each participant receives two injections spaced about 28 days apart.

In a statement, Moderna said they are “on track to complete enrollment in September, 2020. The company will provide an update when enrollment is complete.”

At the July 27 briefing, Fauci said he hoped for much higher enrollment numbers — but he now says he was joking.

“We’d like to have 15,000 by the end of the week. I’m not sure that we’re going to get there, but hopefully we’ll get as many as we possibly can in order to keep our timelines where we need to be,” Fauci said at the briefing.

But Thursday he told CNN he meant that “tongue-in-cheek.”

More than 310,000 people have registered with the the COVID-19 Prevention Network to take part in clinical trials for a vaccine or monoclonal antibody treatment for coronavirus. The group is aiming to register “millions” of people, according to Dr. Jim Kublin, executive director of operations for the network.

President Trump said Thursday that he was “optimistic” a vaccine would be ready around election day on November 3.

“I believe we’ll have the vaccine before the end of the year, certainly, but around that date, yes. I think so,” Trump told reporters. On Monday, Trump said “we’re on pace to have a vaccine available this year, maybe far in advance of the end of the year.”

The-CNN-Wire
™ & © 2020 Cable News Network, Inc., a WarnerMedia Company. All rights reserved.

We want to hear from you.

Have a story idea or tip? Send it to the KSL NewsRadio team here.

Flood waters surround homes in Beaver, Utah, on Monday, July 20, 2026. Residents have been under a ...

Becky Bruce

Beaver City boil water order partially lifted

Some residents of Beaver City are no longer under a boil water order, though they still should take precautions before drinking or using the water.

2 days ago

The KSL forecast for Saturday, July 25, 2026, shows highs above 75 degrees every day for a week, as...

Becky Bruce

Heat advisory in effect through Monday night for northern Utah

The National Weather Service issued a heat advisory for multiple days, saying the lows at night would not offer much relief from triple-digit daytime highs.

2 days ago

FILE: A sign is posted in front of the 23andMe headquarters on February 01, 2024 in Sunnyvale, Cali...

Logan Stefanich, KSL

Utah, 40 other states reach $18M settlement with 23andMe after data breach, bankruptcy

Utah and over 40 other states on Wednesday announced a $18 million settlement agreement with genetic information company 23andMe after the company filed for bankruptcy in March 2025.

2 days ago

Sen John Curtis, R-Utah, walks through the Capitol during votes in Washington, July 16. A journey t...

Cami Mondeaux, Deseret News

From Salt Lake City to the Senate: Curtis leads tribute honoring Pioneer Day

In the US Senate on Thursday, Sen. John Curtis led a resolution honoring the Utah pioneers for exhibiting a spirit that he says still shapes the country today.

2 days ago

Mateus Rangel, of Provo, plays hymns with his children. He spoke about how he uses songs for "Hymns...

Emily Ashcraft, KSL

Church of Jesus Christ announces 10 hymns to be included in ‘Hymns for Home and Church’

The Church of Jesus Christ of Latter-day Saints released 10 new hymns that will be included in its new hymnbook on Thursday as part of a phased rollout of "Hymns for Home and Church."

2 days ago

Taylor Farms Mexico's facilities in Doctor Mora, Guanajuato state, Mexico, Monday. The facility was...

Siddhi Mahatole, Reuters

Taylor Farms temporarily shuts Mexico facility as US cyclosporiasis cases rise, source says

Taylor Farms on Thursday temporarily closed its Mexico facility linked to cyclosporiasis cases. The CDC has reported 4,173 cases across 41 states.

2 days ago

Sponsored Articles

...

Bear Lake

Road trip ready: How Bear Lake became the go-to destination for Western U.S. travelers

Whether you are chasing pristine beaches, fresh raspberry shakes, or endless water sports, this sponsored guide—brought to you in partnership with Bear Lake —uncovers everything you need to plan the ultimate getaway.   There’s nothing quite like the thrill of hopping in the car with your favorite snacks in tow and heading out for a […]

...

Harper Clinic

A new standard of care: How Harper Clinic’s IOP is changing the face of mental health treatment in Utah

This article is sponsored by Harper Clinic, a Utah-based clinic offering FDA-approved TMS therapy for treatment-resistant depression.    Utah’s mental health crisis is leaving many residents caught in an uncomfortable middle ground: struggling too much for weekly therapy alone, but unable to step away from work, parenting or daily life for inpatient treatment. As demand […]

...

Harper Clinic

Breaking free from depression: How Harper Clinic’s TMS Therapy can help

This article is sponsored by Harper Clinic, a Utah-based clinic offering FDA-approved TMS therapy for treatment-resistant depression.    The weight of depression is real. Many people spend years fighting it, adjusting medications, managing side effects and wondering if this is simply how life is going to feel.   According to the World Health Organization, depression affects […]

mental health...

Andrew Adams, KSL

Library discussions bring men’s mental health to the surface

Therapists say it’s common for men to repress things like trauma, grief, stress and anxiety. Now, a new weekly series of discussions aims to help men bring it all to the surface.

...

Bear Lake Convention & Visitors Bureau

Cozy up in Bear Lake: Discover the magic of a winter getaway

SALT LAKE CITY – The holiday season shines brightest when time slows down and loved ones gather. Gifts, decorations and festive music come and go, but shared experiences tend to last much longer. Research supports that idea. Dr. Theresa E. DiDonato told Psychology Today that vacations can strengthen relationships by creating meaningful time away from daily […]

...

Harper Clinic

Rewriting the path to healing: Inside Harper Clinic’s whole-person mental health model

OREM — A few decades ago, you’d have had a hard time finding a doctor to treat both your mind and body; And a century ago, you’d have been hard-pressed to find a doctor to treat your mind at all. Today, medical professionals are understanding more and more the undeniable connection between the body and […]

Fauci ‘satisfied’ with enrollment for the first week of Covid-19 vaccine trial