Houston Chronicle Sunday

What to know before entering a vaccine trial

- By Gwendolyn Wu STAFF WRITER

The good news came in July: Moderna and Pfizer, two U.S.based drug developmen­t companies, were ready to move into large-scale testing of their novel coronaviru­s vaccine candidates.

But to know whether the vaccines are effective, the companies are seeking people to participat­e in trials — half the participan­ts will receive the investigat­ory shots, while the other half receives a placebo.

If you’re interested in getting a COVID-19 vaccine in its earliest form for consumers, here’s what you need to know about qualifying for the trials.

Q: What do we know about a possible COVID-19 vaccine?

A:

The Moderna and Pfizer vaccines are in Phase 3 of a clinical trial, meaning the scientists are expanding the test population to study its effects on preventing COVID-19 and minimizing the impacts if the test subject catches the virus.

The Moderna vaccine is a two-part injection a month apart, where the vaccinated would have to monitor their temperatur­es and possible symptoms or side effects for up to two years after the injection, to evaluate the short- and long-term consequenc­es of the shots. Pfizer’s vaccine is administer­ed similarly.

If approved by the fall for emergency use in the U.S., up to 100 million doses of the Pfizer vaccine could be available by the end of the year.

Dr. Richard Rupp, assistant director of the University of Texas Medical Branch at Galveston’s Sealy Center for Vaccine Developmen­t, said the trials are designed to get researcher­s an inkling of how effective a vaccine is by the six- to nine-month mark.

“That way, we can tell whether the vaccine’s working in less time,” Rupp said.

Government projection­s estimate that a consumer-ready vaccine will be available by the end of the year. Officials have tapped Texas A&M as a vaccine manufactur­ing site, offering $265 million in federal funds to jumpstart production for Novavax, another company producing a COVID-19 vaccine candidate.

Q: Where are vaccine trials

starting?

A: In the Houston area, vaccine trial sites are planned for Houston, Tomball, Bellaire, League City and Galveston. Trials are also coming to Fort Worth, Austin and other parts of Texas, and by the end of the year, some 200 clinical test sites could be open across the country.

The Moderna vaccine is expected to start trials at UTMB’s League City location soon, Rupp said.

Moderna has a trial going at DM Clinical in Tomball. Pfizer and Moderna are testing at the Texas Center for Drug Developmen­t in Bellaire.

Clinical trials for vaccines produced by other pharmaceut­ical companies are expected to begin in late summer and early fall, said Dr. Larry Corey, who oversees the COVID-19 Prevention Network. The list of trials is regularly updated at clinicaltr­ials.gov.

Q: Is this safe?

A: The Moderna and Pfizer vaccines are in Phase 3 trials, meaning that the companies have already confirmed that their vaccine is safe to test on humans. The first two phases of a clinical trial are to confirm the safety and effectiven­ess of the drug in people.

Researcher­s are choosing specific candidates to ensure that people aren’t putting themselves at higher risk of catching the virus; rather than ask someone who is working from home to knowingly expose themselves to the coronaviru­s, they’re looking for people who might already be in higher risk situations.

“Entering a trial is not being a guinea pig,” Corey said.

Before starting the vaccine process, participan­ts are usually subject to a host of training and safety procedures explaining any known side effects. During the infusions, if a participan­t gets COVID-19, study staff will help the patient find care, according to the COVID-19 Prevention Network. The federal Public Readiness and Emergency Preparedne­ss Act or the research institutio­n may pay for the costs.

A spokespers­on for the Texas Center for Drug Developmen­t said patients go through a “very lengthy” consent process, but liability forms can vary depending on the vaccine company.

Under the PREP Act, though, manufactur­ers and vaccine distributo­rs have liability immunity — a plaintiff can sue successful­ly only if there’s “willful misconduct” during the trial by the drug developer.

Q: Am I a good candidate for vaccine trials?

A:

Researcher­s want people 18 and older who may have more exposure than usual to COVID-19. If you’re an essential worker, such as someone who comes face to face (even with a mask on) to people constantly at, say, a grocery store or a big-box retailer, then you’re a prime candidate.

Sarah Hasan, who leads trial recruitmen­t for DM Clinical Research in Tomball, said the pool of candidates might also include people who live in a household where someone is an essential worker or someone who goes out frequently for groceries and dining in at restaurant­s.

Aside from that, though, scientists are seeking a diverse audience to test the vaccine.

“We need to make these trials look like our society, because our society is economical­ly, racially and age-wise diverse,” Corey said.

People who have autoimmune disorders and cancer may not react well to the vaccine and likely will not be selected for the test.

There is a potential to get paid for the vaccine; the amount the trials pay varies. But it’s not a get-rich-quick scheme — Hasan said the Moderna trial pays up to $2,000 for the time and effort tracking symptoms and what it takes to travel to the clinic. But you’re also going to be participat­ing in something that requires extensive safety procedures and long-term monitoring. Funds are distribute­d throughout the course of trial, usually after each visit.

“It really is different than going into the doctor’s office and just getting a shot,” Hasan said.

Currently, the COVID-19 Prevention Network, an operation by the National Institute of Allergy and Infectious Diseases, is collecting volunteer informatio­n across the nation. Its operations are based at the Fred Hutchinson Cancer Research Center in Seattle and at FHI 360 in Durham, N.C.

After completing a 10-minute questionna­ire that will ask for informatio­n including your occupation, demographi­c data and how frequently you interact with people at work, your informatio­n will be entered into a volunteer registry. If a clinical trial begins near you and researcher­s are testing on people in your demographi­c, scientists may reach out to get you into the study. Sign-ups are at coronaviru­spreventio­nnetwork.org.

To volunteer specifical­ly for the Houston version, locals can register at houstonfig­htscovid.com. A researcher from the Texas Center for Drug Developmen­t will call back within a business day and walk prospectiv­e testers through the process.

Q: How do I sign up? A:

 ?? Kin Man Hui / Staff file photo ?? Mary Dixson gets a shot last month in San Antonio from Dr. Ayo Avworo as Clinical Trials of Texas conducts a COVID-19 vaccine trial. Applicatio­ns are being taken in Houston for trials here.
Kin Man Hui / Staff file photo Mary Dixson gets a shot last month in San Antonio from Dr. Ayo Avworo as Clinical Trials of Texas conducts a COVID-19 vaccine trial. Applicatio­ns are being taken in Houston for trials here.

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